JPH1152034A - Method and device for monitoring battery life and automatic notifying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify notifying and adapting operations by measuring battery properties (a battery voltage) at the time of the recovery period of battery properties within a predetermined period of time, creating a measured voltage signal, determining the end-of-life period of a battery life on the basis of the recovery time of battery properties, and recognizing operating limitations. SOLUTION: An automatic notification device 30 controls a battery life monitoring device 10 and constitutes a notifying means 19 which automatically recognizes the operating limitation of a battery life and creates a notification signal 19a to a gas control center according to an instruction 12b for notifying battery exhaustion. The device 10 is constituted of a sampling reference time generating means 18, a time determining means 16, a life determining means 12, and a voltage measuring means 14. Then in the first process, the voltage measuring means 14 is controlled to measure a battery voltage Vbat immediately before the impression of load for recognizing life limitations. In the second process, the battery voltage Vbat at the time of the recovery period after the impression of load is measured. In the third process, the recovery time is calculated on the basis of a sampled voltage 14a. In the fourth process, the end of-life period is determined.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery life monitoring method, and more particularly, to a battery life monitoring method for monitoring battery properties and recognizing an operation limit of the battery life.

The present invention also relates to a battery life monitoring device,
In particular, the present invention relates to a battery life monitoring device for monitoring battery properties and recognizing an operation limit of the battery life.

[0002] The present invention also relates to an automatic notification device, and in particular, is connected to a management center via a communication line, monitors battery properties, automatically recognizes that the battery life is at an operational limit, and reports a battery exhaustion. The present invention relates to an automatic notifying device for performing.

[0003]

2. Description of the Related Art FIG. 4 is a battery voltage fluctuation diagram for explaining a conventional battery life monitoring method.

Conventionally, as this type of automatic notification device, there is one that executes a battery life monitoring method as shown in FIG. 4 (hereinafter, referred to as a first conventional technology).

In the first prior art battery life monitoring method shown in FIG. 4, the battery voltage value Vbat is changed at regular intervals (S1, S2,
S3, S4, S5, S6, S7, S8, S9, S30,
S31, S60, S61, Sα, S (α + 1)...), And when the battery voltage value is low (end of life in the figure), the battery life is automatically recognized as being at the operating limit and the battery is automatically recognized. The cut was reported to the management center.

In the first prior art battery life monitoring method, discrete abnormal values are eliminated by comparing a sampled battery voltage value with an average value or a representative value. Specifically, an abnormal value caused by noise in S3, an abnormal value caused by application of a large load in S5 to S7,
Abnormal values and the like due to a decrease in the ambient temperature in S30 and S31 were excluded.

FIG. 5 is a battery voltage fluctuation diagram for explaining a conventional battery life monitoring method.

On the other hand, as a conventional automatic notification device of this type, there is one which executes a battery life monitoring method as shown in FIG. 5 (hereinafter, referred to as a second conventional technology).

In the second prior art battery life monitoring method shown in FIG. 5, a sampling cycle (sampling cycle, Ts shown in FIG. 5) is set according to the rate of decrease of the battery voltage Vbat at the end of the battery life. .

[0010]

However, in the battery life monitoring method of the first prior art shown in FIG. 4, the abnormal values and the ambient temperature generated during the recovery period of the battery physical properties (battery voltage) after the temporary load increase. In order to eliminate abnormal values in which a gradual voltage change due to a decrease in battery voltage etc. continues, the battery voltage characteristics for the expected temperature / load model are stored in advance, and these battery voltage characteristics are used for a long time. Had to measure the battery voltage.

In the first prior art, the battery voltage sampling period is set long at the end of the battery life due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly. However, there is a problem that a situation may occur in which the battery capacity required for the notification operation and the subsequent coping operation does not remain even though it is determined that the notification should be made to the management center.

On the other hand, in the battery life monitoring method of the second prior art shown in FIG. 5, it is difficult to set the sampling period Ts to be long, and unnecessary battery voltage measurement can be performed even when measurement is not necessary just after starting operation of the battery. There was a possibility of repeating in a short cycle. In addition, there is a problem that the battery life itself may be shortened due to consumption of battery capacity required for comparing the measured value of the battery voltage with the average value or the representative value.

An object of the present invention is to solve such a conventional problem. First, a battery life monitoring for monitoring a battery physical property (battery voltage) and recognizing an operation limit of the battery life. In the method, a large load is connected to the battery for a predetermined time, the large load is disconnected from the battery, and the battery physical property (battery voltage) is sampled at a fixed sampling period during a recovery period of the battery physical property (battery voltage) that is started immediately after the large load is disconnected. A second step of generating a measurement voltage signal and sampling the battery physical property (battery voltage) a predetermined number of times during a recovery period of the battery physical property (battery voltage) immediately after disconnection of a large load to generate a measured voltage signal; The battery properties immediately before the application of the large load are calculated based on the measurement voltage signal sampled immediately before the application of the large load, and the battery properties are calculated based on the measurement voltage signal sampled immediately before the application of the large load. Calculates the battery properties (battery voltage) immediately before the large load is applied, and calculates the battery properties immediately after the large load is applied based on the measured voltage signal sampled during the recovery period of the battery properties (battery voltage) that starts immediately after the large load is disconnected. The difference between the battery properties immediately before the application of the large load and the battery properties immediately after the application of the large load (battery voltage) is calculated. /
The time required for the battery properties (battery voltage) to recover immediately after the application of a large load up to 2 corresponds to the third step of calculating the recovery time of the battery properties (battery voltage) and the measured temperature of the battery properties (battery voltage). Select the recovery reference time for battery physical properties (battery voltage), select the recovery reference time for battery physical properties (battery voltage), recover recovery time for battery physical properties (battery voltage) and battery physical properties (battery voltage)
The recovery time of the battery is compared with the recovery reference time of the battery to determine the end of battery life, and the recovery time of the battery properties (battery voltage) is
A fourth step of automatically recognizing that the battery life is at the operation limit when the reference time exceeds the recovery reference time, and generating a battery exhaustion notification command after waiting for sufficient recovery of battery physical properties;
Prior to execution of the process, a first step of measuring a battery voltage immediately before a large load is applied as a battery physical property for recognizing an operation limit of a battery life is provided. By storing the characteristics, a process of measuring the battery voltage over a long period of time using the battery voltage characteristics can be omitted, and the battery characteristics (battery voltage) recover after a temporary load increase. It is an object of the present invention to provide a battery life monitoring method that can eliminate an abnormal value in which a gradual voltage change caused by an abnormal value or a decrease in ambient temperature is continuous.

In addition, compared with the case where uniform sampling is performed over the entire measurement time, the battery physical properties can be intensively sampled only at a key point, the number of samplings can be reduced, and the battery life measurement time can be reduced. Can be shortened, battery capacity consumption can be reduced, and battery life can be prolonged. Accordingly, the battery capacity consumed by the device that executes the battery life monitoring method can be reduced, the battery capacity consumption can be reduced, the battery life can be prolonged, and the device cost can be reduced. Become. Specifically, the sampling cycle and the number of times of sampling can be reduced, and unnecessary battery voltage measurement can be prevented from being repeated in a short cycle at the time when measurement is not necessary just after starting operation of the battery. It is an object of the present invention to provide a battery life monitoring method capable of preventing battery consumption and extending battery life.

As a result, at the end of the battery life, due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly, it is determined that the notification should be made to the management center. It is an object of the present invention to provide a battery life monitoring method capable of avoiding a situation in which the battery capacity required for the coping operation is not left.

Secondly, there is provided a battery life monitoring device for executing a battery life monitoring method, wherein a sampling reference time generating means for generating a sampling reference time signal for setting a sampling period, and a time measurement for generating a time signal. Means for generating a sampling signal for instructing measurement of the battery physical property immediately before the application of the large load based on the sampling reference time signal, and measuring the battery physical property (battery voltage) starting immediately after disconnection of the large load based on the sampling reference time signal. During the recovery period, a sampling signal for instructing the measurement of the battery properties is generated, and the difference between the battery properties immediately before the large load is applied and the battery properties immediately after the large load is applied (battery voltage) is calculated. Up to half of the difference between the battery property (battery voltage) immediately after the application of a large load and the battery property (battery voltage) immediately after the application of a large load
The recovery time of the battery physical property (battery voltage) and the calculated recovery time of the battery physical property (battery voltage) and the recovery standard of the battery physical property (battery voltage) are selected by calculating the time required until the battery recovers based on the time signal. When the recovery time of the calculated battery physical property (battery voltage) exceeds the reference time for recovery of the battery physical property (battery voltage) by comparing the battery life with the end of the battery life and automatically calculating that the battery life is at the operating limit. Means for recognizing a battery and generating a battery exhaustion notification command, a memory for holding data relating to a reference time for recovery of battery properties (battery voltage) according to a measured temperature of battery properties (battery voltage), and a sampling signal Voltage measurement means for measuring the battery properties according to the temperature and generating a measurement voltage signal, wherein the voltage measurement means is adapted to the battery properties (battery voltage) according to the measured temperature of the battery properties (battery voltage)
When the recovery time of the battery physical property (battery voltage) calculated by reading out the recovery reference time data of the above is longer than the recovery reference time, the battery life is automatically recognized as being at the operating limit and the battery exhaustion notification command is issued. , The battery voltage characteristic for the expected temperature / load model is stored in advance, and the battery voltage characteristic is measured over a long period of time using the battery voltage characteristic. Batteries that can be made unnecessary and that can eliminate abnormal values that occur during the recovery period of battery physical properties (battery voltage) after a temporary increase in load and abnormal values in which a gradual voltage change due to a drop in ambient temperature or the like continues. It is intended to provide a life monitoring device.

In addition, compared with the case where uniform sampling is performed over the entire measurement time, the battery physical properties can be intensively sampled only at important points, the number of samplings can be reduced, and the battery life measurement time can be reduced. Can be shortened, battery capacity consumption can be reduced, and battery life can be prolonged. Accordingly, the battery capacity consumed by the battery life monitoring device that executes the battery life monitoring method can be reduced, the battery capacity consumption can be reduced, the battery life can be prolonged, and the device cost can be reduced. become able to.
Specifically, the sampling cycle and the number of times of sampling can be reduced, and unnecessary battery voltage measurement can be avoided in a short cycle at the time when measurement is not necessary just after starting operation of the battery, and unnecessary battery capacity can be avoided. It is an object of the present invention to provide a battery life monitoring device which can extend battery life by avoiding battery consumption.

As a result, at the end of the battery life, due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly, it is determined that the notification should be made to the management center. It is an object of the present invention to provide a battery life monitoring device capable of avoiding a situation in which the battery capacity required for the coping operation does not remain.

Third, in the battery life monitoring method for monitoring the physical properties of the battery and recognizing the operational limit of the battery life, the method for monitoring the physical properties of the battery based on the physical property value measured for recognizing the operational limit of the battery life. Measure the battery physical properties by gradually shortening the sampling cycle of the battery physical properties and generate a measurement voltage signal.If the measured value of the battery physical properties indicates before the operating limit of the battery life, adjust the sampling cycle to match the battery characteristics in advance. A second step of measuring the physical properties of the battery for a predetermined period to generate a measured voltage signal, and before the operating limit of the battery life based on the measured voltage signal sampled immediately before the falling period of the physical properties of the battery (battery voltage). Battery properties (battery voltage) calculated based on the measured voltage signal sampled during the fall period of the battery properties (battery voltage) that starts immediately after disconnection of a large load A third step of calculating battery physical properties during the fall period of the battery voltage), a fourth step of determining the end of the battery life based on the calculated fall time of the battery physical properties, and recognizing the operational limit of the battery life; Prior to the execution of the process, the battery properties (battery voltage) before the operation limit of the battery life are sampled at a fixed sampling cycle to generate a measured voltage signal, and the battery properties before the operation limit of the battery life are generated. By providing a first step of sampling the (battery voltage) a predetermined number of times to generate a measurement voltage signal, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage characteristics are used. The process of measuring the battery voltage over a long period of time can be eliminated, and the battery properties after a temporary increase in load (battery voltage)
It is an object of the present invention to provide a battery life monitoring method capable of excluding an abnormal value which occurs during a recovery period of the battery or an abnormal value in which a gradual voltage change caused by a decrease in ambient temperature or the like is continuous.

Further, compared with the case where the uniform sampling is performed over the entire measurement time, the sampling of the battery physical properties can be performed intensively only at the key points, the number of samplings can be reduced, and the battery life measurement time can be reduced. Can be shortened, battery capacity consumption can be reduced, and battery life can be prolonged. Accordingly, the battery capacity consumed by the device that executes the battery life monitoring method can be reduced, the battery capacity consumption can be reduced, the battery life can be prolonged, and the device cost can be reduced. Become. Specifically, the sampling cycle and the number of times of sampling can be reduced, and unnecessary battery voltage measurement can be prevented from being repeated in a short cycle at the time when measurement is not necessary just after starting operation of the battery. It is an object of the present invention to provide a battery life monitoring method capable of preventing battery consumption and extending battery life.

As a result, at the end of the battery life, due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly, it is determined that the notification should be made to the management center. It is an object of the present invention to provide a battery life monitoring method capable of avoiding a situation in which the battery capacity required for the coping operation is not left.

Fourthly, there is provided a battery life monitoring apparatus for executing a battery life monitoring method, wherein a sampling reference time generating means for generating a sampling reference time signal for setting a sampling period, and a time measurement for generating a time signal. Means for generating a sampling signal for instructing measurement of the battery physical property before the operating limit of the battery life based on the sampling reference time signal, and generating the battery during the falling period of the battery physical property (battery voltage) based on the sampling reference time signal. Generates a sampling signal to instruct the measurement of physical properties, determines the end of battery life based on the measured voltage signal, and generates a battery exhaustion command when it automatically recognizes that the battery life is at the operating limit. Means, a memory for holding data relating to a sampling period predetermined according to battery characteristics, and a sampler. Voltage measuring means for measuring the battery properties in accordance with the signal to generate a measured voltage signal, wherein the voltage measuring means selects sampling cycle data corresponding to the battery characteristics, reads out the calculated battery property falling time, Is configured to automatically generate a low battery notification command when the battery life is automatically recognized as being at the operating limit,
The battery voltage characteristics for the expected temperature / load model are stored in advance, and a step of measuring the battery voltage over a long period of time using the battery voltage characteristics can be omitted. It is an object of the present invention to provide a battery life monitoring device capable of eliminating abnormal values that occur during a recovery period of physical properties (battery voltage) and abnormal values in which a gradual voltage change due to a decrease in ambient temperature or the like is continuous.

Also, compared with the case where the sampling is performed uniformly over the entire measurement time, the sampling of the battery physical properties can be performed intensively in a limited area, the number of samplings can be reduced, and the battery life measurement time can be reduced. Can be shortened, battery capacity consumption can be reduced, and battery life can be prolonged. Accordingly, the battery capacity consumed by the battery life monitoring device that executes the battery life monitoring method can be reduced, the battery capacity consumption can be reduced, the battery life can be prolonged, and the device cost can be reduced. become able to.
Specifically, the sampling cycle and the number of times of sampling can be reduced, and unnecessary battery voltage measurement can be avoided in a short cycle at the time when measurement is not necessary just after starting operation of the battery, and unnecessary battery capacity can be avoided. It is an object of the present invention to provide a battery life monitoring device which can extend battery life by avoiding battery consumption.

As a result, at the end of the battery life, due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly, it is determined that the notification should be made to the management center. It is an object of the present invention to provide a battery life monitoring device capable of avoiding a situation where the battery capacity required for the coping operation is not left.

Fifth, there is provided an automatic notification device which is connected to a management center via a communication line, controls a battery life monitoring device, automatically recognizes that the battery life is at an operational limit, and reports a battery exhaustion. By providing a battery life monitoring device and a reporting unit connected to the management center via a communication line and generating a report signal for reporting the battery exhaustion in response to the battery exhaustion report command, The battery voltage characteristic for the load model is stored, and a step of measuring the battery voltage over a long period of time using the battery voltage characteristic can be omitted, and the battery physical properties (battery voltage) after a temporary increase in load are eliminated. It is an object of the present invention to provide an automatic notification device capable of eliminating an abnormal value which occurs during a recovery period of an abnormal condition or an abnormal value in which a gradual voltage change caused by a decrease in ambient temperature or the like is continuous.

In addition, compared with the case where uniform sampling is performed over the entire measurement time, the battery physical properties can be intensively sampled only at important points, the number of samplings can be reduced, and the battery life measurement time can be reduced. Can be shortened, battery capacity consumption can be reduced, and battery life can be prolonged. Accordingly, the battery capacity consumed by the automatic notification device that executes the battery life monitoring method can be reduced, the battery capacity consumption can be reduced, the battery life can be prolonged, and the device cost can be reduced. Become like Specifically, the sampling cycle and the number of times of sampling can be reduced, and unnecessary battery voltage measurement can be avoided in a short cycle at the time when measurement is not necessary just after starting operation of the battery, and unnecessary battery capacity can be avoided. It is an object of the present invention to provide an automatic notification device capable of preventing battery consumption and extending battery life.

As a result, at the end of the battery life, due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly, it is determined that the notification should be made to the management center. It is an object of the present invention to provide an automatic notification device capable of avoiding a situation in which the battery capacity required for the coping operation is not left.

[0028]

According to a first aspect of the present invention, there is provided a battery life monitoring method for monitoring the physical properties of a battery and recognizing the operational limit of the battery life. A second step of measuring the physical properties of the battery during a recovery period of the physical properties of the battery in a predetermined period to generate a measurement voltage signal 14a, and calculating a recovery time of the physical properties of the battery (battery voltage) from the measured physical properties of the battery. Third
And a fourth step of determining the end of the battery life based on the calculated recovery time of the battery physical properties (battery voltage) and recognizing the operational limit of the battery life.

According to the first aspect of the present invention, the end of the battery life is determined based on the calculated recovery time of the battery physical properties (battery voltage) to recognize the operation limit of the battery life. The battery voltage characteristic for the temperature / load model obtained is stored, and a step of measuring the battery voltage over a long period of time using the battery voltage characteristic can be omitted. It is possible to eliminate an abnormal value that occurs during a recovery period of the battery physical properties (battery voltage) and an abnormal value in which a gradual voltage change caused by a decrease in ambient temperature or the like can be eliminated.

Further, compared with the case where the sampling is performed uniformly over the entire measurement time, the physical properties of the battery can be more intensively sampled only at important points.
The number of times of sampling can be reduced, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. Accordingly, it becomes possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, and it is possible to reduce the battery capacity consumption and extend the battery life,
The cost of the device can be reduced. Specifically, the number of times of sampling can be reduced, and it is possible to avoid a situation where unnecessary battery voltage measurement is repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery. This has the effect of avoiding excessive battery capacity consumption and extending battery life.

As a result, although it is determined that a notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly at the end of the battery life, the notification operation and the subsequent notification are performed. There is an effect that it is possible to avoid a situation where the battery capacity required for the coping operation is not left.

According to a second aspect of the present invention, in the battery life monitoring method according to the first aspect, the second step includes a step of recognizing an operation limit of the battery life as a battery physical property after applying a large load. Measuring the physical properties of the battery during the recovery period of the physical properties.

According to the invention described in claim 2, according to claim 1
In addition to the effects described in (1), the battery properties (battery voltage) after the application of a large load are measured during the recovery period as the battery properties for recognizing the operation limit of the battery life. The step of measuring the battery voltage over a long period of time by storing the voltage characteristics and using the battery voltage characteristics can be omitted, and the battery properties (battery voltage) after the temporary increase in the load 21 can be eliminated. This has the effect of eliminating abnormal values that occur during the recovery period and abnormal values in which a gradual voltage change caused by a drop in ambient temperature or the like can be eliminated.

In addition, since the physical properties (battery voltage) of the battery after the application of a large load are measured during the recovery period, the sampling is more limited to the key points and intensive than in the case where uniform sampling is performed over the entire measurement time. Sampling of battery physical properties can be performed, the number of times of sampling can be reduced, battery life measuring time can be reduced, battery capacity consumption can be reduced, and battery life can be prolonged. Become like This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and it is possible to avoid a situation where unnecessary battery voltage measurement is repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery. Thus, there is an effect that the battery life can be extended by avoiding excessive consumption of battery capacity.

That is, as a result of measuring the battery properties (battery voltage) after the application of a large load during the recovery period, due to the battery voltage characteristics such that the battery electromotive force and battery voltage drop rapidly at the end of battery life, Even if it is determined that the notification should be made to the management center, it is possible to avoid a situation in which the battery capacity required for the notification operation and the subsequent coping operation is not left.

According to a third aspect of the present invention, in the battery life monitoring method according to the second aspect, prior to the execution of the second step, a large load is applied as a battery physical property for recognizing an operation limit of the battery life. There is a first step of measuring the battery voltage immediately before application.

According to the invention of claim 3, according to claim 2,
In addition to the effects described in (1), the battery properties (battery voltage) immediately before and after the application of a large load are measured during the recovery period as the battery properties for recognizing the operational limit of the battery life. The battery voltage characteristic for the load model is stored, and the step of measuring the battery voltage over a long period of time using the battery voltage characteristic can be omitted, and the battery after the temporary increase of the load 21 can be eliminated. It is possible to eliminate an abnormal value occurring during a recovery period of physical properties (battery voltage) and an abnormal value in which a gradual voltage change caused by a decrease in ambient temperature or the like can be eliminated.

In order to measure the battery properties (battery voltage) immediately before and after the application of a large load during the recovery period,
Compared to the case where uniform sampling is performed over the entire measurement time, battery physical properties can be sampled more intensively at key points, the number of samplings can be reduced, and battery life measurement can be reduced. The time can be shortened, the battery capacity consumption can be reduced, and the life of the battery can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and it is possible to avoid a situation where unnecessary battery voltage measurement is repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery. Thus, there is an effect that the battery life can be extended by avoiding excessive consumption of battery capacity.

That is, as a result of measuring the battery properties (battery voltage) immediately before and after the application of a large load during the recovery period, the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly at the end of battery life As a result, it is possible to avoid a situation in which the battery capacity required for the notification operation and the subsequent coping operation is not left even though it is determined that the notification should be made to the management center.

The invention according to claim 4 is the invention according to claim 2 or 3
In the battery life monitoring method described in the above, the second step,
A second A step of connecting a large load to the battery for a predetermined time, a 2B step of disconnecting the large load from the battery, and a battery property (battery voltage) recovery period starting immediately after the large load is disconnected. 2C step of measuring.

According to the invention described in claim 4, according to claim 2,
Or in addition to the effect described in 3 above, during the recovery period of the battery properties (battery voltage) that starts immediately before the application of a large load and immediately after disconnection of the large load after the application of the large load as the battery properties for recognizing the operational limit of the battery life. Since the battery properties are measured intensively, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the process of measuring the battery voltage over a long period of time using the battery voltage characteristics is not required. It is possible to eliminate an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 or an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues. It has the effect of being able to do so.

In addition, since the battery properties are measured intensively during the recovery period of the battery properties (battery voltage) which starts immediately before the application of a large load and immediately after the separation of the large load after the application of the large load, the measurement is performed uniformly over the entire measurement time. Compared to the case of performing simple sampling, it is possible to perform high-efficiency sampling of battery physical properties intensively only at key points, thereby reducing the number of times of sampling and shortening the battery life measurement time As a result, it is possible to reduce the battery capacity consumption and extend the life of the battery. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and it is possible to avoid a situation where unnecessary battery voltage measurement is repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery. Thus, there is an effect that the battery life can be extended by avoiding excessive consumption of battery capacity.

That is, as a result of intensively measuring the battery properties during the recovery period of the battery properties (battery voltage) which starts immediately before the application of the large load and immediately after the separation of the large load after the application of the large load,
Battery capacity required for notification and subsequent coping actions despite the judgment that notification should be made to the management center due to battery voltage characteristics such as rapid battery electromotive force and battery voltage drop at the end of battery life It is possible to avoid a situation in which no data is left.

According to a fifth aspect of the present invention, in the battery life monitoring method according to the fourth aspect, the second C step is constant during a recovery period of battery physical properties (battery voltage) immediately after disconnection of the large load. And a step of generating the measured voltage signal 14a by sampling the physical properties of the battery at a sampling cycle of (i).

According to the invention described in claim 5, according to claim 4,
In addition to the effects described in (1), the battery properties (battery voltage) that starts immediately before the application of a large load and immediately after the large load is separated after the application of the large load are used as the battery properties for recognizing the operational limit of the battery life.
During the recovery period of the battery, the battery properties are sampled at a constant sampling cycle and the battery properties are measured intensively, so that the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery This eliminates the need to measure battery voltage over time,
It is possible to eliminate an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 or an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues. It works.

Further, during the recovery period of the battery properties (battery voltage) which starts immediately before the application of a large load and immediately after the disconnection of the large load after the application of the large load, the battery properties are sampled at a constant sampling cycle to concentrate the battery properties. Since the measurement is performed, compared to the case where the uniform sampling is performed over the entire measurement time, it is possible to perform the sampling with high efficiency of the physical properties of the battery intensively only at the key points, thereby reducing the number of times of sampling. As a result, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan.

The invention according to claim 6 is the invention according to claim 4 or 5
In the battery life monitoring method described in the above, the second C step includes sampling the battery physical property a predetermined number of times during a recovery period of the battery physical property (battery voltage) that starts immediately after disconnection of the large load, and performs the measurement voltage signal 14a .

According to the invention set forth in claim 6, according to claim 4,
Or in addition to the effect described in 5 above, during the recovery period of the battery properties (battery voltage) that starts immediately before the application of the large load and immediately after the large load is separated after the application of the large load as the battery properties for recognizing the operational limit of the battery life. Since the battery properties are sampled at a constant sampling cycle and the battery properties are measured intensively, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage characteristics are used over a long period of time. The step of measuring the battery voltage can be omitted, and the abnormal voltage generated during the recovery period of the battery physical properties (battery voltage) after the temporary increase of the load 21 or the gradual voltage caused by the decrease in the ambient temperature, etc. This has the effect that abnormal values with continuous changes can be eliminated.

Further, during the recovery period of the battery properties (battery voltage) which starts immediately before the application of the large load and immediately after the disconnection of the large load after the application of the large load, the battery properties are sampled at a constant sampling cycle to concentrate the battery properties. Since the measurement is performed, compared to the case where the uniform sampling is performed over the entire measurement time, it is possible to perform the sampling with high efficiency of the physical properties of the battery intensively only at the key points, thereby reducing the number of times of sampling. As a result, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, a constant sampling period is used during the recovery period of the battery physical property (battery voltage) that starts immediately before the large load is applied and immediately after the large load is separated after the large load is applied as a battery physical property for recognizing the operation limit of the battery life. The battery physical properties are sampled and the battery physical properties are intensively measured, so the number of times of sampling can be reduced, and unnecessary battery voltage measurement is repeated in a short cycle at the time when measurement is unnecessary just after starting operation of the battery. This has the effect of avoiding the situation and avoiding unnecessary consumption of the battery capacity and extending the life of the battery.

That is, during the recovery period of the battery properties (battery voltage) which starts immediately before the application of a large load and immediately after the disconnection of the large load after the application of the large load, the battery properties are sampled at a constant sampling cycle to concentrate the battery properties. The result of the measurement,
Battery capacity required for notification and subsequent coping actions despite the judgment that notification should be made to the management center due to battery voltage characteristics such as rapid battery electromotive force and battery voltage drop at the end of battery life It is possible to avoid a situation in which no data is left.

The invention according to claim 7 is the invention according to claims 3 to 6
In the battery life monitoring method according to any one of the above, in the first C step, prior to the execution of the second step, the physical properties of the battery immediately before the application of the large load are sampled at a constant sampling cycle. The measured voltage signal 14
generating a.

According to the invention of claim 7, according to claim 3,
The same effects as the effects described in any one of the above items 6 to 6 are achieved.

The invention described in claim 8 provides the invention according to claims 3 to 7
In the battery life monitoring method according to any one of the first to third aspects, the first C step may include, prior to the execution of the second step, sampling the physical properties of the battery immediately before the application of the large load by a predetermined number of times to perform the measurement voltage signal. 14a.

According to the invention described in claim 8, according to claim 3,
The same effects as the effects described in any one of the above items 7 to 7 are achieved.

According to a ninth aspect of the present invention, in the battery life monitoring method according to the eighth aspect, the third step includes the step of measuring the measured voltage signal 14 immediately before the application of the large load.
calculating the physical properties of the battery immediately before the application of a large load based on a
A step, a 3B step of calculating battery properties immediately after application of a large load based on the measured voltage signal 14a sampled during a recovery period of the battery properties (battery voltage) started immediately after disconnection of the large load, and 3B A third C step of calculating a difference between the battery physical property immediately before the large load application calculated in the step and the battery physical property (battery voltage) immediately after the large load application calculated in the third B step; and a difference calculated in the third C step. The time required for the battery physical properties (battery voltage) immediately after the application of the large load to recover to half of the difference between the physical properties of the battery immediately before the application of the large load and the physical properties (battery voltage) immediately after the application of the large load is determined by the battery. A 3D step of counting as a recovery time of physical properties (battery voltage).

According to the ninth aspect of the present invention, an eighth aspect is provided.
In addition to the effects described in (1), the battery properties (battery voltage) that starts immediately before the application of a large load and immediately after the large load is separated after the application of the large load are used as the battery properties for recognizing the operational limit of the battery life.
During the recovery period of the battery, the battery properties are sampled at a constant sampling cycle and the battery properties are measured intensively, so that the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery This eliminates the need to measure battery voltage over time,
The time required for the battery properties (battery voltage) immediately after the application of the large load to recover to half the difference between the calculated battery properties immediately before the application of the large load and the battery properties (battery voltage) immediately after the application of the large load is determined by the battery. Since the recovery time of the physical properties (battery voltage) is calculated,
It is possible to eliminate an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 or an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues. It works.

Further, during the recovery period of the battery properties (battery voltage) which starts immediately before the application of a large load and immediately after the disconnection of the large load after the application of the large load, the battery properties are sampled at a constant sampling cycle to concentrate the battery properties. Since the measurement is performed, compared to the case where the uniform sampling is performed over the entire measurement time, it is possible to perform the sampling with high efficiency of the physical properties of the battery intensively only at the key points, thereby reducing the number of times of sampling. As a result, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, a constant sampling period is used during the recovery period of the battery physical property (battery voltage) that starts immediately before the large load is applied and immediately after the large load is separated after the large load is applied as a battery physical property for recognizing the operation limit of the battery life. The battery physical properties are sampled and the battery physical properties are intensively measured, so that the number of times of sampling can be reduced, and the difference between the calculated battery physical properties immediately before the application of the large load and the battery physical properties (the battery voltage) immediately after the large load is applied. The recovery time of the battery properties (battery voltage) is calculated by calculating the time required for the battery properties (battery voltage) to recover immediately after the application of a large load up to 1/2 of the time. It is possible to avoid unnecessary battery voltage measurement being repeated in a short cycle, and it is also possible to avoid unnecessary consumption of battery capacity and extend battery life. An effect that it becomes so that.

That is, during the recovery period of the battery properties (battery voltage) that starts immediately before the application of a large load and immediately after the disconnection of the large load after the application of the large load, the battery properties are sampled at a constant sampling cycle to concentrate the battery properties. The result of the measurement,
Battery capacity required for notification and subsequent coping actions despite the judgment that notification should be made to the management center due to battery voltage characteristics such as rapid battery electromotive force and battery voltage drop at the end of battery life It is possible to avoid a situation in which no data is left.

According to a tenth aspect of the present invention, in the battery life monitoring method according to the ninth aspect, the fourth step includes a fourth A step of selecting a recovery reference time of battery physical properties (battery voltage); Performing a 4B step of comparing the recovery time of the battery properties (battery voltage) calculated in the 3D step with a recovery reference time of the battery properties (battery voltage); If the recovery time of the battery properties (battery voltage) exceeds the recovery reference time of the battery properties (battery voltage), the battery life is automatically recognized as being at the operation limit, and the battery exhaustion notification command 12b is issued. 4C step of generating.

According to the tenth aspect of the present invention, in addition to the effect of the ninth aspect, the battery properties for recognizing the operational limit of the battery life are as follows: During the recovery period of the battery properties (battery voltage) that starts immediately after disconnection of the load, the battery properties are sampled at a fixed sampling cycle and the battery properties are measured intensively.
The battery voltage characteristic for the expected temperature / load model is stored in advance, and the step of measuring the battery voltage over a long period of time using the battery voltage characteristic can be eliminated, and the calculated large load application can be eliminated. The time required until the physical properties of the battery (battery voltage) immediately after the application of the large load is restored to half of the difference between the physical properties of the battery immediately before the application of the large load and the physical properties of the battery (battery voltage) immediately after the application of the large load is calculated as the battery physical property (battery voltage). When the recovery time of the battery physical property (battery voltage) calculated by calculating the recovery time and performing the final determination of the battery life exceeds the recovery reference time of the battery physical property (battery voltage), it is determined that the battery life is at the operating limit. Since it automatically recognizes and generates the dead battery notification command 12b, a gradual voltage caused by an abnormal value or a drop in ambient temperature that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 or the like. Changes are continuous An effect such it is possible to eliminate outliers.

Also, during the recovery period of the battery properties (battery voltage) which starts immediately before the application of a large load and immediately after the disconnection of the large load after the application of the large load, the battery properties are sampled at a constant sampling cycle to concentrate the battery properties. Since the measurement is performed, compared to the case where the uniform sampling is performed over the entire measurement time, it is possible to perform the highly efficient sampling of the battery physical properties intensively in a limited area, thereby reducing the number of times of sampling. As a result, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, a constant sampling period is used during the recovery period of the battery properties (battery voltage) that starts immediately before the application of a large load and immediately after the separation of the large load after the application of the large load as the battery properties for recognizing the operation limit of the battery life. The battery physical properties are sampled and the battery physical properties are intensively measured, so that the number of times of sampling can be reduced, and the difference between the calculated battery physical properties immediately before the application of a large load and the battery physical properties (battery voltage) immediately after the application of a large load is obtained. The recovery time of the battery properties (battery voltage) is calculated by calculating the time required for the battery properties (battery voltage) to recover immediately after the application of a large load up to 1/2 of the battery load. When the recovery time of the battery voltage exceeds the recovery reference time of the battery properties (battery voltage), the battery life is automatically recognized as being at the operational limit, and the dead battery notification command 12b is generated.
It is possible to avoid unnecessary battery voltage measurement being repeated in a short cycle at the time when measurement is unnecessary just after starting operation of the battery, and also to avoid unnecessary consumption of battery capacity and extend battery life. This has the effect of making it possible to achieve this.

That is, during the recovery period of the battery properties (battery voltage) which starts immediately before the application of a large load and immediately after the disconnection of the large load after the application of the large load, the battery properties are sampled at a constant sampling cycle to concentrate the battery properties. The result of the measurement,
Battery capacity required for notification and subsequent coping actions despite the judgment that notification should be made to the management center due to battery voltage characteristics such as rapid battery electromotive force and battery voltage drop at the end of battery life It is possible to avoid a situation in which no data is left.

According to an eleventh aspect of the present invention, in the battery life monitoring method of the tenth aspect, the fourth step (A) comprises:
The method includes a step of selecting a recovery reference time for the battery properties (battery voltage) according to the measured temperature of the battery properties (battery voltage).

According to the eleventh aspect of the present invention, in addition to the effect of the tenth aspect, the battery physical properties for recognizing the operational limit of the battery life include a large value immediately before the application of a large load and a value after the application of a large load. During the recovery period of the battery properties (battery voltage) that starts immediately after disconnection of the load, the battery properties are sampled at a fixed sampling cycle and the battery properties are intensively measured.
The battery voltage characteristic for the expected temperature / load model is stored in advance, and the step of measuring the battery voltage over a long period of time using the battery voltage characteristic can be eliminated, and the calculated large load application can be eliminated. The time required until the physical properties of the battery (battery voltage) immediately after the application of the large load is restored to half of the difference between the physical properties of the battery immediately before the application of the large load and the physical properties of the battery (battery voltage) immediately after the application of the large load is calculated as The recovery time of the battery physical properties (battery voltage) calculated by calculating the recovery time and determining the end of the battery life exceeds the recovery reference time of the battery physical properties (battery voltage) selected according to the measured temperature of the battery physical properties. In this case, the battery life is automatically recognized as being at the operation limit and the battery exhaustion notification command 12b is generated.
Abnormal values that occur during the recovery period of the battery physical properties (battery voltage) after an increase in the battery voltage and gradual voltage changes caused by a decrease in the ambient temperature, etc., are eliminated in consideration of the influence of the measured temperature of the battery physical properties. The effect that it becomes possible to do it is produced.

According to a twelfth aspect of the present invention, in the battery life monitoring method according to the tenth aspect, the fourth step (C) comprises:
The method includes the step of generating the battery exhaustion notification command 12b after the battery properties have sufficiently recovered.

According to the twelfth aspect of the present invention, in addition to the effect of the tenth aspect, the battery exhaustion notification command 12b is generated after the battery physical properties are sufficiently recovered, so that the end of the battery life is reached. This can avoid the effects of battery voltage characteristics such as rapid battery electromotive force and battery voltage drop. As a result, when it is determined that a notification should be made to the management center, the battery required for the notification operation and the subsequent response operation It is possible to avoid a situation in which the battery has no remaining capacity, and it is possible to accurately notify the battery exhaustion.

According to a thirteenth aspect of the present invention, in the battery life monitoring method according to any one of the first to twelfth aspects, a battery voltage is used as the physical properties of the battery.

According to the thirteenth aspect of the present invention, in addition to the effects of any one of the first to twelfth aspects, a battery which is formed by a combination of a change in internal resistance and a change in battery electromotive force. The change in voltage is used as a change in battery physical properties that occurs at the end of battery life. Since the battery voltage is sampled at a constant sampling cycle during the recovery period and the battery voltage is measured intensively, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage characteristics are used for a long time. A step of measuring the battery voltage can be eliminated over a period of time, and the calculated difference between the battery voltage immediately before the large load is applied and the battery voltage immediately after the large load is applied is 1 /.
The battery voltage recovery time, which is the time required for the battery voltage to recover immediately after the application of a large load to 2, is calculated, and the end of the battery life is determined. The calculated battery voltage recovery time is set to the battery voltage recovery reference time. If it exceeds, the battery life is automatically recognized as being at the operating limit, and the battery exhaustion notification command 12b is generated, so that the abnormality that occurs during the recovery period of the battery physical properties (battery voltage) after the temporary load 21 increases. It is possible to eliminate an abnormal value in which a gradual change in voltage caused by a decrease in value or ambient temperature can eliminate an abnormal value.

The change in battery voltage caused by the combination of the change in internal resistance and the change in battery electromotive force is used as the change in battery physical properties at the end of battery life, and the change in battery voltage immediately before and after large load is applied. Since the battery voltage is sampled at a constant sampling period during the battery voltage recovery period that starts immediately after disconnection of the load and the battery voltage is intensively measured, compared to the case where uniform sampling is performed over the entire measurement time, High-efficiency sampling of battery voltage can be performed intensively only at key points, reducing the number of samplings, shortening battery life measurement time, and reducing battery capacity consumption As a result, the life of the battery can be extended. According to this,
The battery capacity consumed by the device that executes the battery life monitoring method can be reduced, the battery capacity consumption can be reduced, the battery life can be prolonged, and the device cost can be reduced. Become like Specifically, as the battery voltage for recognizing the operation limit of the battery life, the battery voltage is set at a constant sampling cycle during the recovery period of the battery voltage that starts immediately before the application of the large load and immediately after the large load is disconnected after the application of the large load. Since the sampling is performed and the battery voltage is intensively measured, the number of times of sampling can be reduced, and a large load is applied up to half of the calculated difference between the battery voltage immediately before the large load is applied and the battery voltage immediately after the large load is applied. When the battery voltage recovery time, which is the time required for the battery voltage to recover immediately after, is calculated and the end of battery life is determined, and the calculated battery voltage recovery time exceeds the battery voltage recovery reference time Since the battery life is automatically recognized as being at the operation limit and the battery exhaustion notification command 12b is generated, unnecessary battery voltage measurement can be performed at the measurement unnecessary time just after the start of battery operation. It will be able to avoid a situation would repeat with a period, also, an effect such so that it is possible to prolong the battery life by avoiding consumption of unnecessary battery capacity.

That is, the change in the battery voltage caused by the combination of the change in the internal resistance and the change in the battery electromotive force is used as the change in the battery physical properties that occurs at the end of the battery life, and the large change immediately before and after the large load is applied. During the battery voltage recovery period that starts immediately after disconnection of the load, the battery voltage is sampled at a fixed sampling cycle and the battery voltage is intensively measured.As a result, the battery electromotive force and battery voltage drop rapidly at the end of battery life. Of the battery voltage characteristics, it is possible to avoid the situation that the battery capacity required for the notification operation and the following coping operation is not left even though it is determined that the notification should be made to the management center. Play.

According to a fourteenth aspect of the present invention, in the battery life monitoring method according to any one of the first to twelfth aspects, a battery electromotive force is used as the battery physical property.

According to the fourteenth aspect of the present invention, in addition to the effects of any one of the first to twelfth aspects, the change in the battery electromotive force constituting the change in the battery voltage together with the change in the internal resistance. Is used as a change in battery properties occurring at the end of the battery life, and during the recovery period of the battery voltage that starts immediately before the application of a large load and immediately after the disconnection of the large load after the application of the large load as the battery voltage for recognizing the operational limit of the battery life. Since the battery voltage is sampled at a constant sampling cycle and the battery voltage is intensively measured, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage characteristics are used for a long time. The step of measuring the battery voltage can be omitted, and the difference between the calculated battery voltage immediately before the application of the large load and the battery voltage immediately after the application of the large load is reduced to half of the difference between the battery voltage immediately after the application of the large load. The battery voltage recovery time, which is the time required until the battery voltage recovers, is calculated and the end of the battery life is determined.If the calculated battery voltage recovery time exceeds the battery voltage recovery reference time, the battery life Is automatically recognized as the operating limit, and the battery exhaustion command 12b is generated, so that an abnormal value or a drop in the ambient temperature that occurs during the recovery period of the battery properties (battery voltage) after the temporary load 21 increases. In this case, it is possible to eliminate an abnormal value in which a gradual voltage change caused by the above-mentioned continuation occurs.

The change in the battery electromotive force, which constitutes the change in the battery voltage together with the change in the internal resistance, is used as the change in the physical properties of the battery that occurs at the end of the battery life. Since the battery voltage is sampled at a fixed sampling period during the battery voltage recovery period that starts immediately after and the battery voltage is intensively measured, compared to the case where uniform sampling is performed over the entire measurement time,
High-efficiency sampling of battery voltage can be performed intensively only at key points, reducing the number of samplings, shortening battery life measurement time, and reducing battery capacity consumption As a result, the life of the battery can be extended. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, as the battery voltage for recognizing the operation limit of the battery life, the battery voltage is set at a constant sampling cycle during the recovery period of the battery voltage that starts immediately before the application of the large load and immediately after the large load is disconnected after the application of the large load. Since the sampling is performed and the battery voltage is intensively measured, the number of times of sampling can be reduced, and a large load is applied up to half of the calculated difference between the battery voltage immediately before the large load is applied and the battery voltage immediately after the large load is applied. When the battery voltage recovery time, which is the time required for the battery voltage to recover immediately after, is calculated and the end of battery life is determined, and the calculated battery voltage recovery time exceeds the battery voltage recovery reference time Since the battery life is automatically recognized as being at the operation limit and the battery exhaustion notification command 12b is generated, unnecessary battery voltage measurement can be performed at the measurement unnecessary time just after the start of battery operation. It will be able to avoid a situation would repeat with a period, also, an effect such so that it is possible to prolong the battery life by avoiding consumption of unnecessary battery capacity.

That is, the change in the battery electromotive force, which constitutes the change in the battery voltage together with the change in the internal resistance, is used as the change in the battery properties occurring at the end of the battery life. During the recovery period of the battery voltage that starts immediately after, the battery voltage is sampled at a fixed sampling cycle and the battery voltage is intensively measured. Due to the characteristics, it is possible to avoid a situation in which the battery capacity required for the notification operation and the subsequent coping operation is not left even though it is determined that the notification should be made to the management center.

According to a fifteenth aspect of the present invention, there is provided a battery life monitoring device for executing the battery life monitoring method according to any one of the first to fourteenth aspects, wherein the battery life monitoring device executes the battery life monitoring method. 10, a sampling reference time signal 1 for setting the sampling period.
8a for generating sampling reference time;
A time measuring means 16 for generating a time signal 16a; and a sampling signal 12a for instructing measurement of battery properties immediately before the application of the large load based on the sampling reference time signal 18a.
8a, a sampling signal 12a for instructing the measurement of the physical properties of the battery is generated during the recovery period of the physical properties of the battery (battery voltage) started immediately after the disconnection of the heavy load, and the battery physical property immediately before the application of the heavy load is compared with the sampling signal 12a. The difference between the battery properties immediately after the application of the load (battery voltage) is calculated, and the difference between the battery properties immediately before the application of the large load and the battery properties immediately after the application of the large load (battery voltage) is reduced to １ ／ of the difference immediately after the application of the large load. The time required for the battery physical properties (battery voltage) to recover is indicated by the time signal 16a.
The recovery reference time of the battery properties is selected based on the following formula, and the calculated recovery time of the battery properties (battery voltage) is compared with the recovery reference time of the battery properties (battery voltage). When the recovery time of the calculated battery physical property (battery voltage) exceeds the recovery reference time of the battery physical property (battery voltage), the battery life is automatically recognized as the operating limit and the determination is made. A battery life determining means for generating a battery exhaustion command;
And voltage measuring means 14 for generating

According to the fifteenth aspect of the present invention, in addition to the effects of the first aspect, the battery physical property for recognizing the operation limit of the battery life after a large load is applied. Since the battery properties (battery voltage) are measured during the recovery period, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage is measured over a long period of time using the battery voltage characteristics. Values can be eliminated, and abnormal values that occur during the recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 and abnormal values in which a gradual voltage change due to a drop in ambient temperature or the like continues. Can be eliminated.

In addition, since the physical properties of the battery (battery voltage) after the application of a large load are measured during the recovery period, the sampling is more intensively limited to the key points as compared with the case where uniform sampling is performed over the entire measurement time. Sampling of battery physical properties can be performed, the number of times of sampling can be reduced, battery life measuring time can be reduced, battery capacity consumption can be reduced, and battery life can be prolonged. Become This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and it is possible to avoid a situation where unnecessary battery voltage measurement is repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery. Thus, there is an effect that the battery life can be extended by avoiding excessive consumption of battery capacity.

That is, as a result of measuring the battery physical properties (battery voltage) after the application of a large load during the recovery period, due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly at the end of the battery life, Even if it is determined that the notification should be made to the management center, it is possible to avoid a situation in which the battery capacity required for the notification operation and the subsequent coping operation is not left.

According to a sixteenth aspect of the present invention, there is provided the battery life monitoring device according to the fifteenth aspect, wherein the data relating to the recovery reference time of the battery physical property (battery voltage) according to the measured temperature of the battery physical property (battery voltage). The voltage measuring means 14 selects and reads out the recovery reference time data of the battery physical property (battery voltage) according to the measured temperature of the battery physical property (battery voltage), and calculates and calculates the calculated battery physical property (battery voltage). If the recovery time of the battery exceeds the recovery reference time, the battery life is automatically recognized as being at the operational limit, and the battery exhaustion notification command 12b is issued.
Is generated.

According to the sixteenth aspect of the present invention, in addition to the effect of the fifteenth aspect, the battery physical properties for recognizing the operational limit of the battery life include a large battery property immediately before and after a large load is applied. During the recovery period of the battery properties (battery voltage) that starts immediately after disconnection of the load, the battery properties are sampled at a fixed sampling cycle so that the battery properties can be measured intensively taking into account the effect of the battery temperature measurement temperature. Become. Also, the battery immediately after the application of the large load is reduced to half of the difference between the battery properties immediately before the application of the large load and the battery properties (battery voltage) immediately after the application of the large load, taking into account the influence of the measured temperature of the battery properties. The time required for the physical properties (battery voltage) to recover is calculated by taking into account the effect of the measured temperature of the battery physical properties (battery voltage) taking into account the effect of the measured temperature of the battery physical properties, and the end of battery life is determined to calculate the calculated battery physical properties If the recovery time of (battery voltage) exceeds the reference time for recovery of battery properties (battery voltage) taking into account the effect of the measurement temperature selected according to the measurement temperature of battery properties, the battery life is at the operating limit. Automatically recognizes that there is, and generates the battery exhaustion notification command 12b, so that the temporary load 2
Abnormal values that occur during the recovery period of the battery properties (battery voltage) after the increase of 1 and gradual voltage changes caused by a decrease in the ambient temperature, etc., are eliminated. There is an effect that the measurement can be performed in consideration of the influence of the measurement temperature.

Further, a large load is applied up to half the difference between the battery properties immediately before the application of the large load and the battery properties (battery voltage) immediately after the application of the large load, which are calculated in consideration of the influence of the measurement temperature of the battery properties. The recovery time of the battery properties (battery voltage) immediately after the recovery of the battery properties (battery voltage) is calculated in consideration of the influence of the measured temperature of the battery properties, and the end of the battery life is determined. If the recovery time of the battery properties (battery voltage) exceeds the reference time for recovery of the battery properties (battery voltage) selected according to the measured temperature of the battery properties, the battery life is automatically recognized as the operating limit And generates a battery exhaustion command 12b, so that unnecessary battery voltage measurement is repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery, taking into account the influence of the measurement temperature of the battery physical properties. hand You will be able to avoid, also, an effect such so that it is possible to prolong the battery life by avoiding consumption of unnecessary battery capacity.

That is, during the recovery period of the battery properties (battery voltage) which starts immediately before the application of a large load and immediately after the disconnection of the large load after the application of the large load, the battery properties are sampled at a constant sampling cycle to concentrate the battery properties. The result of the measurement,
The battery capacity required for the reporting operation and the following coping operation, despite the judgment that it should be reported to the management center due to the battery voltage characteristics such as the battery electromotive force and the battery voltage dropping rapidly at the end of battery life There is an effect that it is possible to avoid a situation in which no battery remains in consideration of the influence of the measurement temperature of the battery physical properties.

According to a seventeenth aspect of the present invention, in the battery life monitoring method for monitoring the physical properties of the battery and recognizing the operational limit of the battery life, the method is based on the physical property value measured for recognizing the operational limit of the battery life. A second step of gradually shortening the sampling cycle of the battery physical property at the time of battery physical property drop and measuring the battery physical property to generate the measurement voltage signal 14a; and calculating the battery physical property fall time from the measured battery physical property. And a fourth step of determining the end of the battery life based on the calculated fall time of the battery physical properties and recognizing the operational limit of the battery life.

According to the seventeenth aspect of the invention, the battery physical property sampling period at the time of battery physical property drop is gradually shortened based on the physical property values measured for recognizing the operational limit of battery life. To measure the voltage signal 14
Since a is generated, the battery voltage characteristics for the expected temperature / load model are stored in advance, and a step of measuring the battery voltage over a long period of time using the battery voltage characteristics can be omitted, and Abnormal values occurring during the recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 and abnormal values in which a gradual voltage change due to a drop in ambient temperature or the like can be eliminated. It works.

Further, as compared with the case where the uniform sampling is performed over the entire measurement time, the sampling of the physical properties of the battery can be performed more intensively only at the important points.
The number of times of sampling can be reduced, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. Accordingly, it becomes possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, and it is possible to reduce the battery capacity consumption and extend the battery life,
The cost of the device can be reduced. Specifically, the number of times of sampling can be reduced, and it is possible to avoid a situation where unnecessary battery voltage measurement is repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery. Thus, there is an effect that the battery life can be extended by avoiding excessive consumption of battery capacity.

As a result, although it is determined that a notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly at the end of the battery life, the notification operation and the subsequent operation are performed. This has the effect of avoiding a situation where the battery capacity required for the coping operation is not left.

According to an eighteenth aspect of the present invention, in the battery life monitoring method according to the seventeenth aspect, the second step is performed when the measured value of the battery physical property indicates an operation limit of the battery life. The method includes a step of generating a measured voltage signal 14a by measuring the physical properties of the battery by shortening the period by a predetermined period according to the battery characteristics in advance.

According to the eighteenth aspect of the invention, in addition to the effect of the seventeenth aspect, when the measured value of the battery physical property indicates the operation limit of the battery life, the sampling period is set to the battery characteristic in advance. Since the measured battery properties are measured and the measured voltage signal 14a is generated by shortening the battery voltage characteristics for a predetermined period, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage characteristics are used for a long time. The step of measuring the battery voltage can be eliminated over a period of time, and the battery physical properties (battery voltage) after the temporary increase of the load 21 can be eliminated.
It is possible to eliminate an abnormal value that occurs during a recovery period of the current and an abnormal value in which a gradual voltage change caused by a decrease in ambient temperature or the like can be eliminated.

In addition, compared to the case where uniform sampling is performed over the entire measurement time, efficient and high-speed sampling of the battery physical properties can be performed intensively and limited to key points. Can be reduced, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and it is possible to avoid a situation where unnecessary battery voltage measurement is repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery. Thus, there is an effect that the battery life can be extended by avoiding excessive consumption of battery capacity.

As a result, although it is determined that a notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly at the end of the battery life, the notification operation and the subsequent This has the effect of avoiding a situation where the battery capacity required for the coping operation is not left.

According to a nineteenth aspect of the present invention, in the battery life monitoring method according to the seventeenth or eighteenth aspect, the second step includes the step of determining that the measured value of the physical properties of the battery is before the operating limit of the battery life. And a step of generating the measurement voltage signal 14a by lengthening the sampling cycle by a predetermined period according to the battery characteristics and measuring the physical properties of the battery.

According to the nineteenth aspect of the invention, in addition to the effects of the seventeenth and eighteenth aspects, the sampling period is set in advance when the measured value of the battery physical property indicates a value before the operating limit of the battery life. Since the measured voltage signal 14a is generated by measuring the physical properties of the battery for a certain period determined according to the battery characteristics and generating the measured voltage signal 14a, the efficiency of the sampling process in a range where the change in the physical properties of the battery is small can be improved. This makes it possible to store a battery voltage characteristic with respect to an expected temperature / load model in advance and eliminate the need for a process of measuring the battery voltage over a long period of time using this battery voltage characteristic,
It is possible to eliminate an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 or an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues. It works.

Further, since the sampling cycle is lengthened by a predetermined period in advance in accordance with the battery characteristics in a range where the change in the battery properties is small, the battery physical properties are sampled to improve the efficiency of the sampling process. Compared to the case of performing uniform sampling by using the same method, efficient and high-speed sampling of battery physical properties can be performed intensively and limited to key points, so that the number of samplings can be reduced and battery life measurement can be performed. You can save time,
It is possible to reduce battery capacity consumption and extend battery life. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, in a range where the change in the battery properties is small, the sampling cycle is lengthened by a predetermined period in accordance with the battery characteristics in advance, and the battery properties can be sampled to reduce the number of samplings. This makes it possible to avoid unnecessary battery voltage measurement being repeated in a short cycle at a time when measurement is not necessary immediately, and it is also possible to avoid unnecessary consumption of battery capacity and extend battery life. It has the effect of becoming

As a result, although it is determined that the notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly at the end of the battery life, the notification operation and the subsequent operation are performed. This has the effect of avoiding a situation where the battery capacity required for the coping operation is not left.

According to a twentieth aspect of the present invention, in the battery life monitoring method according to the eighteenth or nineteenth aspect, prior to the execution of the second step, a battery physical property for recognizing an operation limit of the battery life is provided. It has a first step of measuring battery properties (battery voltage) before the operating limit of battery life.

According to the twentieth aspect, the same effects as those of the eighteenth and nineteenth aspects can be obtained.

According to a twenty-first aspect of the present invention, in the battery life monitoring method according to the twentieth aspect, the second step is performed in accordance with the degree of the drop in the battery physical property (battery voltage) during the fall period of the battery physical property (battery voltage). And generating the measured voltage signal 14a by sampling the physical properties of the battery at a variable sampling cycle.

According to the twenty-first aspect of the invention, in addition to the effect of the twentieth aspect, when the measured value of the battery physical property indicates a value before the operating limit of the battery life, the battery physical property (battery voltage) The battery voltage is measured at a sampling cycle that is varied according to the degree of drop in the battery properties during the fall period, and the measured voltage signal 14a is generated. This makes it possible to store the battery voltage characteristics for the expected temperature / load model in advance and eliminate the need for a process of measuring the battery voltage over a long period of time using the battery voltage characteristics. In other words, it is possible to eliminate an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 or an abnormal value in which a gradual voltage change due to a drop in ambient temperature or the like continues. An effect that it becomes cormorants.

When the measured value of the battery physical property indicates a value before the operating limit of the battery life, the battery has a sampling period that is varied according to the degree of the decrease in the battery physical property during the fall period of the battery physical property (battery voltage). Sampling of physical properties to improve the efficiency of the sampling process. Compared to the case of performing uniform sampling over the entire measurement time range, efficient and high-speed sampling of battery physical properties is performed intensively only at key points. As a result, the number of times of sampling can be reduced, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, in a range where the change in the battery properties is small, the sampling cycle is lengthened by a predetermined period in accordance with the battery characteristics in advance, and the battery properties can be sampled to reduce the number of samplings. This makes it possible to avoid unnecessary battery voltage measurement being repeated in a short cycle at a time when measurement is not necessary immediately, and it is also possible to avoid unnecessary consumption of battery capacity and extend battery life. It has the effect of becoming

As a result, although it is determined that a notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly at the end of the battery life, the notification operation and the subsequent There is an effect that it is possible to avoid a situation where the battery capacity required for the coping operation is not left.

According to a twenty-second aspect of the present invention, in the battery life monitoring method according to the twentieth or twenty-first aspect, the second step is performed by performing a predetermined number of samplings during a fall period of the battery physical property (battery voltage). To generate the measured voltage signal 14a.

According to the twenty-second aspect of the present invention, in addition to the effects of the twentieth and twenty-first aspects, the battery physical property (battery voltage) is reduced a predetermined number of times during the fall of the battery physical property (battery voltage). Since the sampling is performed to generate the measurement voltage signal 14a, the efficiency of the sampling process can be improved in a range where the change in the battery physical property is large, and the battery voltage characteristic for the expected temperature / load model is stored in advance. By using this battery voltage characteristic, a process of measuring the battery voltage over a long time can be eliminated,
It is possible to eliminate an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 or an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues. It works.

Further, since the battery physical properties are sampled a predetermined number of times during the fall period of the battery physical properties (battery voltage) to improve the efficiency of the sampling process, compared to the case where uniform sampling is performed over the entire measurement time. In this way, efficient and high-speed sampling of battery physical properties can be performed intensively in a range where the change in battery physical properties is large, so that the sampling time resolution can be improved, and the battery life measurement time can be improved. Can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. More specifically, during the period in which the battery physical property (battery voltage) falls, the battery physical property can be sampled a predetermined number of times to improve the sampling time resolution, and the time when measurement is unnecessary just after the battery operation is started. In this case, it is possible to avoid the situation that unnecessary battery voltage measurement is repeated in a short cycle, and it is possible to avoid unnecessary consumption of battery capacity and extend the life of the battery. .

As a result, although it is determined that the notification should be made to the management center due to the battery voltage characteristics such as the battery electromotive force and the battery voltage dropping rapidly at the end of the battery life, the notification operation and the subsequent operation are performed. There is an effect that it is possible to avoid a situation where the battery capacity required for the coping operation is not left.

According to a twenty-third aspect of the present invention, in the battery life monitoring method according to any one of the nineteenth to twenty-second aspects, the first step is performed prior to the execution of the second step.
The method includes a step of generating the measured voltage signal 14a by sampling the physical properties of the battery (battery voltage) before the operation limit of the battery life at a constant sampling cycle.

According to the twenty-third aspect of the present invention, in addition to the effect of any one of the nineteenth to twenty-second aspects, a constant sampling of the battery properties (battery voltage) before the operating limit of the battery life is obtained. Since the battery properties (battery voltage) are sampled in a cycle and the measurement voltage signal 14a is generated, the efficiency of the sampling process can be improved in a range where the change in the battery properties is small, and the temperature / load model predicted in advance is obtained. The battery voltage characteristic for the battery can be stored, and a step of measuring the battery voltage over a long period of time using the battery voltage characteristic can be omitted. It is possible to eliminate an abnormal value that occurs during a recovery period of the voltage and an abnormal value in which a gradual voltage change caused by a decrease in ambient temperature or the like can be eliminated.

Further, since the physical properties of the battery (battery voltage) are sampled a predetermined number of times during the fall period of the physical properties of the battery to improve the efficiency of the sampling process, a uniform sampling is performed over the entire measurement time. In this way, efficient and high-speed sampling of battery physical properties can be performed intensively only at key points, the number of samplings can be reduced, battery life measurement time can be shortened, and battery capacity can be reduced. It is possible to reduce the consumption and extend the life of the battery. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, battery physical properties (battery voltage) before the operating limit of battery life can be sampled at a fixed sampling cycle to reduce the number of times of sampling. In this case, it is possible to avoid the situation that unnecessary battery voltage measurement is repeated in a short cycle, and it is possible to avoid unnecessary consumption of battery capacity and extend the life of the battery. .

As a result, in spite of the determination that the notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly at the end of the battery life, the notification operation and the subsequent There is an effect that it is possible to avoid a situation where the battery capacity required for the coping operation is not left.

According to a twenty-fourth aspect of the present invention, in the battery life monitoring method according to any one of the nineteenth to twenty-third aspects, the first step is performed before execution of the second step.
The method includes a step of generating the measured voltage signal 14a by sampling a battery physical property (battery voltage) before the operation limit of the battery life a predetermined number of times.

According to the invention described in claim 24, in addition to the effects described in any one of claims 19 to 23, the physical properties of the battery (battery voltage) before the operating limit of the battery life are determined by a predetermined number of samplings. Sampled and measured voltage signal 14
Since a is generated, the efficiency of the sampling process can be improved in the range where the change in the physical properties of the battery is small,
A battery voltage characteristic for an expected temperature / load model is stored in advance, and a step of measuring the battery voltage for a long time using the battery voltage characteristic can be omitted. Battery properties after increase (battery voltage)
It is possible to eliminate an abnormal value that occurs during a recovery period of the current and an abnormal value in which a gradual voltage change caused by a decrease in ambient temperature or the like can be eliminated.

Also, since the physical properties of the battery (battery voltage) before the operating limit of the battery life are sampled a predetermined number of times to improve the efficiency of the sampling process, compared to the case where uniform sampling is performed over the entire measurement time. In this way, efficient and high-speed sampling of battery physical properties can be performed intensively only at key points, the number of samplings can be reduced, battery life measurement time can be shortened, and battery capacity can be reduced. It is possible to reduce the consumption and extend the life of the battery. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the battery physical properties (battery voltage) before the operation limit of the battery life can be sampled by a predetermined number of times, and the number of times of sampling can be reduced. It is possible to avoid a situation where voltage measurement is repeated in a short cycle, and it is possible to avoid unnecessary consumption of battery capacity and extend battery life.

As a result, although it is determined that the notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly at the end of the battery life, the notification operation and the subsequent This has the effect of avoiding a situation where the battery capacity required for the coping operation is not left.

According to a twenty-fifth aspect of the present invention, in the battery life monitoring method according to the twenty-fourth aspect, the third step is based on the measured voltage signal 14a sampled immediately before a period during which battery physical properties (battery voltage) falls. A 3A step of calculating battery properties (battery voltage) before the operational limit of battery life;
The measured voltage signal 14a sampled during a drop period of battery physical properties (battery voltage) that starts immediately after disconnection of a large load.
3B step of calculating the battery physical properties during the fall period of the battery physical properties (battery voltage) based on the above.

According to the twenty-fifth aspect of the invention, in addition to the effect of the twenty-fourth aspect, the battery physical property (battery voltage) is sampled a predetermined number of times during the fall period of the battery physical property (battery voltage). The measurement voltage signal 14a is generated to improve the efficiency of the sampling process in a range where the change in the battery physical property is large, and at the same time, the battery physical property (battery voltage) before the operating limit of the battery life is sampled a predetermined number of times and the measurement voltage is measured. By generating the signal 14a, it is possible to improve the efficiency of the sampling process in a range where the change in the battery physical properties is small, and store the battery voltage characteristics with respect to the expected temperature / load model in advance to store the battery voltage characteristics. A step of measuring the battery voltage over a long period of time by using the battery can be eliminated, and the battery properties (battery voltage) after the temporary increase of the load 21 can be eliminated. An effect such gradual change in voltage caused by reduction or the like of the abnormal value and the ambient temperature occurring during recovery will be able to eliminate outliers successive.

Also, since the battery physical properties are sampled a predetermined number of times during the fall period of the battery physical properties (battery voltage) to improve the efficiency of the sampling process, compared to the case where uniform sampling is performed over the entire measurement time. In this way, efficient and high-speed sampling of battery physical properties can be performed intensively in a range where the change in battery physical properties is large, so that the sampling time resolution can be improved, and the battery life measurement time can be improved. Can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, during the fall period of the battery physical property (battery voltage), the battery physical property (battery voltage) is sampled a predetermined number of times to generate the measurement voltage signal 14a, and the sampling process is performed in a range where the change in the battery physical property is large. At the same time, the battery properties (battery voltage) before the operating limit of the battery life are sampled a predetermined number of times to generate the measurement voltage signal 14a, thereby improving the efficiency of the sampling process in a range where the change in the battery properties is small. This makes it possible to avoid unnecessary battery voltage measurement being repeated in a short cycle at the time when measurement is not necessary just after starting operation of the battery, and to reduce unnecessary battery capacity consumption. There is an effect that the battery life can be avoided to extend the life of the battery.

As a result, in spite of the judgment that the notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly at the end of the battery life, the notification operation and the subsequent operation are performed. There is an effect that it is possible to avoid a situation where the battery capacity required for the coping operation is not left.

According to a twenty-sixth aspect, in the battery life monitoring method according to any one of the seventeenth to twenty-fifth aspects, a battery voltage is used as the battery physical property.

According to the twenty-sixth aspect of the present invention, in addition to the effects described in any one of the seventeenth to twenty-fifth aspects, a battery is produced by a combination of a change in internal resistance and a change in battery electromotive force. The change in the voltage is used as a change in the battery voltage that occurs at the end of the battery life, and the battery voltage is sampled a predetermined number of times during the fall period of the battery voltage, and the measured voltage signal 1
4a to increase the efficiency of the sampling process in a range where the change in the battery voltage is large, and simultaneously sample the battery voltage before the operation limit of the battery life a predetermined number of times to generate the measured voltage signal 14a. This makes it possible to increase the efficiency of the sampling process in a range where the change in the temperature is small, and to store in advance the battery voltage characteristics for the expected temperature / load model, and use the battery voltage characteristics for a long time. A step of measuring the voltage can be eliminated, and a gradual voltage change caused by an abnormal value or a drop in the ambient temperature that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 can be eliminated. Has an effect that continuous abnormal values can be eliminated.

Also, since the battery voltage is sampled a predetermined number of times during the battery voltage drop period to improve the efficiency of the sampling process, the battery voltage is compared with the case where uniform sampling is performed over the entire measurement time. Efficient and high-speed sampling of the battery voltage can be performed intensively within a range where the change is large, so that the sampling time resolution can be improved and the battery life measurement time can be shortened. Thus, the battery capacity consumption can be reduced and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. More specifically, the battery voltage is sampled a predetermined number of times during the fall period of the battery voltage to generate the measurement voltage signal 14a, thereby improving the efficiency of the sampling process in a range where the change in the battery voltage is large, and The battery voltage before the operation limit is sampled a predetermined number of times to generate the measurement voltage signal 14a, thereby making it possible to improve the efficiency of the sampling process in a range where the change in the battery voltage is small. It is possible to avoid a situation in which unnecessary battery voltage measurement is repeated in a short cycle at the time when measurement is just started, and it is possible to avoid unnecessary consumption of battery capacity and prolong battery life. It has the effect of becoming

As a result, although it is determined that a notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage drop rapidly at the end of the battery life, the notification operation and the subsequent There is an effect that it is possible to avoid a situation where the battery capacity required for the coping operation is not left.

The invention according to claim 27 is the battery life monitoring method according to any one of claims 17 to 25, wherein a battery electromotive force is used as the battery physical property.

According to the twenty-seventh aspect of the present invention, in addition to the effect of any one of the seventeenth to twenty-fifth aspects, a change in battery electromotive force constituting a change in battery voltage together with a change in internal resistance. Is used as a change in physical properties of the battery occurring at the end of the battery life.
a to generate the measured voltage signal 14a by sampling the battery electromotive force before the operation limit of the battery life a predetermined number of times to improve the efficiency of the sampling process in a range where the change of the battery electromotive force is large. It is possible to increase the efficiency of the sampling process in the range where the change in the battery electromotive force is small, and store the battery electromotive force characteristics for the expected temperature / load model in advance, and use the A step of measuring the battery electromotive force over time can be eliminated, and an abnormal value or a decrease in ambient temperature that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 can be eliminated. It is possible to eliminate an abnormal value in which the resulting gradual voltage change is continuous.

Further, the efficiency of the sampling process is improved by sampling the battery electromotive force a predetermined number of times during the fall period of the battery electromotive force, so that the battery is more uniformly sampled over the entire measurement time. Efficient and high-speed sampling of the battery electromotive force can be performed intensively limited to the range where the change of the electromotive force is large, the sampling time resolution can be improved, and the battery life measurement time can be improved. Can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, during the fall period of the battery electromotive force, the battery electromotive force is sampled a predetermined number of times to generate the measurement voltage signal 14a, and the efficiency of the sampling process in a range where the change of the battery electromotive force is large is improved.
At the same time, the battery electromotive force before the operation limit of the battery life is sampled a predetermined number of times and the measured voltage signal 14a
To increase the efficiency of the sampling process in the range where the change in the battery electromotive force is small, so that unnecessary battery electromotive force measurement can be performed in a short cycle when measurement is unnecessary just after starting operation of the battery. It is possible to avoid such a situation that the battery is repeated, and it is possible to avoid unnecessary consumption of the battery capacity and extend the life of the battery.

As a result, although it is determined that a notification should be made to the management center due to the battery electromotive force or the battery electromotive force characteristic such that the battery electromotive force drops at the end of the battery life, the notification operation and the This has the effect of avoiding a situation in which the battery capacity required for the subsequent coping operation is not left.

According to a twenty-eighth aspect of the present invention, there is provided a battery life monitoring device for executing the battery life monitoring method according to the twenty-sixth or twenty-seventh aspect, wherein the battery life monitoring device executes the battery life monitoring method. A sampling reference time generating means 18 for generating a sampling reference time signal 18a for setting the sampling period; a time measuring means 16 for generating a time signal 16a; A sampling signal 12a for instructing measurement of battery properties before the operation limit is generated, and the sampling reference time signal 1
Sampling signal 1 for instructing measurement of the battery physical property (battery voltage) during the falling period based on 8a
2a, a battery life end determination is performed based on the measured voltage signal 14a, and the battery depletion notification command 12b is generated when the battery life is automatically recognized as being at the operational limit. , The sampling signal 12
a) to measure the physical properties of the battery in accordance with
And voltage measuring means 14 for generating

According to the twenty-eighth aspect of the present invention, in addition to the effects of the twenty-sixth and twenty-seventh aspects, the battery properties before the operation limit of the battery life are used as the battery properties for recognizing the operation limit of the battery life. (Battery voltage) Since the battery properties are measured during the fall period, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage is measured over a long period of time using the battery voltage characteristics. The process can be made unnecessary, and an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 or an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues. This has the effect that it can be eliminated.

In order to measure the battery physical property during the fall period of the battery physical property (battery voltage) before the operational limit of the battery life as the battery physical property for recognizing the operational limit of the battery life, the battery physical property is uniform over the entire measurement time. Compared to sampling, battery properties can be intensively sampled only at key points, the number of samplings can be reduced, and the battery life measurement time can be shortened. It is possible to reduce battery capacity consumption and extend battery life. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and it is possible to avoid a situation where unnecessary battery voltage measurement is repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery. Thus, there is an effect that the battery life can be extended by avoiding excessive consumption of battery capacity.

That is, as a physical property of the battery for recognizing the operational limit of the battery life, the battery physical property was measured during the fall period of the battery physical property (battery voltage) before the operational limit of the battery life.
Battery capacity required for notification and subsequent coping actions despite the judgment that notification should be made to the management center due to battery voltage characteristics such as rapid battery electromotive force and battery voltage drop at the end of battery life It is possible to avoid a situation in which no data is left.

According to a twenty-ninth aspect of the present invention, in the battery life monitoring device according to the twenty-eighth aspect, the battery life monitoring device further comprises a memory for holding data relating to a sampling cycle predetermined according to battery characteristics, and The means 14 selects and reads out the sampling cycle data according to the battery characteristics, and when the calculated fall time of the battery properties is automatically recognized as the battery life is at the operation limit, the battery exhaustion notification command 12b is issued. It is configured to generate.

According to the twenty-ninth aspect, the same effect as that of the twenty-eighth aspect can be obtained.

According to a thirtieth aspect of the present invention, in the automatic notification device 30 using the battery life monitoring device 10 according to any one of the twenty-eighth and twenty-ninth aspects, the automatic notification device 30 is connected to a management center via a communication line, An automatic notification device 30 for controlling the battery life monitoring device 10 and automatically recognizing that the battery life is at the operation limit and reporting the battery exhaustion. The communication line is connected to the battery life monitoring device 10 and a management center. Notification means 1 for generating a notification signal 19a for notifying the battery exhaustion in response to the battery exhaustion instruction command 12b
9 (specifically, a line connection control circuit: NCU).

According to the thirtieth aspect of the present invention, in addition to the effects of the twenty-eighth or twenty-ninth aspect, the operation of the battery life as a battery physical property for recognizing the operation limit of the battery life is performed. Since the battery physical properties during the fall period of the battery physical properties (battery voltage) before the limit are measured, the battery voltage characteristics with respect to the expected temperature / load model are stored in advance, and the battery voltage characteristics are used for a long time using the battery voltage characteristics. Is unnecessary, and a gradual voltage change caused by an abnormal value or a drop in ambient temperature occurring during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 can be eliminated. There is an effect that continuous abnormal values can be eliminated.

In order to measure the battery physical property for recognizing the operating limit of the battery life, the battery physical property (battery voltage) before the operating limit of the battery life is measured during the fall period of the battery physical property. Compared to sampling, battery properties can be intensively sampled only at key points, the number of samplings can be reduced, and the battery life measurement time can be shortened. It is possible to reduce battery capacity consumption and extend battery life. As a result, the battery capacity consumed by the automatic notification device 30 that executes the battery life monitoring method can be reduced, the battery capacity consumption can be reduced, and the battery life can be prolonged. The cost of the device 30 can be reduced.
Specifically, the number of times of sampling can be reduced, and it is possible to avoid a situation where unnecessary battery voltage measurement is repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery. Thus, there is an effect that the battery life can be extended by avoiding excessive consumption of battery capacity.

That is, as a physical property of the battery for recognizing the operational limit of the battery life, the result of measuring the physical property of the battery during the fall period of the battery physical property (battery voltage) before the operational limit of the battery life was obtained.
Battery capacity required for notification and subsequent coping actions despite the judgment that notification should be made to the management center due to battery voltage characteristics such as rapid battery electromotive force and battery voltage drop at the end of battery life There is an effect that the operation limit of the battery life can be surely notified to the management center via a communication line by avoiding a situation in which no battery remains.

[0135]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of an automatic notification device according to the present invention will be described with reference to the drawings.

FIG. 1 is a functional block diagram for explaining the operation of the battery life monitoring device 10 and the automatic notification device 30 according to the present invention.

The automatic notification device 30 is mainly composed of a microcomputer, is connected to a management center via a communication line, controls the battery life monitoring device 10, and automatically determines that the battery life is at the operating limit. It has a function of recognizing and reporting a dead battery, and generates a battery life monitoring device 10 and a notification signal 19a connected to a management center via a communication line to report a dead battery in response to a dead battery notification command 12b. And a notifying unit 19 that performs the communication.

More specifically, the automatic notification device 30
1 controls the gas flow sensor to measure the gas flow rate of the LPG or the like to generate electronic message information, and further controls the gas leak alarm to detect a gas leak and send a detection signal to the automatic notification device 30.
Is connected as a load 21,
A function to connect to a gas management center via a telephone line capable of receiving a no-ringing service, to control a battery life monitoring device 10 described later, to automatically recognize that the battery life is at the operating limit, and to report a dead battery. And a notification signal 19 connected to the gas management center via a communication line to notify the battery management center of a dead battery.
and a notifying unit (NCU) 19 for generating a in response to the battery exhaustion instruction 12b. Battery 2
0 is often built in a gas sensor or a microcomputer meter as a power supply.

Subsequently, the automatic notification device 30 of the first embodiment
A battery life monitoring device used for the following will be described.

A battery life monitoring device 10 for executing the battery life monitoring method, which is built in the automatic notification device 30 of the first embodiment, and which is a microcomputer which plays a central role in calculation, a sampling reference time generation means 18 , Time measuring means 16, life determining means 12, voltage measuring means 14, and memory (not shown).

In this embodiment, the battery voltage Vbat is used as the battery properties. Hereinafter, description will be made with the battery voltage Vbat as a representative example of the battery properties.

By using the battery voltage Vbat as the battery physical property, the change in the battery voltage Vbat generated by combining the change in the internal resistance and the change in the battery electromotive force is used as the change in the battery physical property that occurs at the end of the battery life. As the battery voltage Vbat for recognizing the operation limit of the battery life, the battery voltage Vbat is sampled at a constant sampling cycle during the recovery period of the battery voltage Vbat which starts immediately before the large load is applied and immediately after the large load is separated after the large load is applied. Since the battery voltage Vbat is measured intensively, a battery voltage characteristic for an expected temperature / load model is stored in advance, and a process of measuring the battery voltage Vbat for a long time using the battery voltage characteristic is performed. It becomes unnecessary, and the calculated difference between the battery voltage Vbat immediately before the application of the large load and the battery voltage Vbat immediately after the application of the large load is reduced to half of the difference between the battery voltage Vbat immediately after the application of the large load. The recovery time of the battery voltage Vbat, which is the time required until the battery voltage Vbat recovers, is calculated, and the end of the battery life is determined. The calculated recovery time of the battery voltage Vbat exceeds the recovery reference time of the battery voltage Vbat. In this case, the battery life is automatically recognized as being at the operating limit and the battery exhaustion notification command 12b is generated, so that abnormal values and surroundings that occur during the recovery period of the battery properties (battery voltage) after the temporary load 21 increases. An abnormal value in which a gradual voltage change due to a temperature drop or the like is continuous can be eliminated.

The change in the battery voltage Vbat caused by the combination of the change in the internal resistance and the change in the battery electromotive force is used as the change in the battery properties at the end of the battery life. When the battery voltage Vbat is sampled at a constant sampling period during the recovery period of the battery voltage Vbat that is started immediately after disconnection of a large load, and the battery voltage Vbat is measured intensively, so that uniform sampling is performed over the entire measurement time. In comparison with the above, it becomes possible to perform highly efficient sampling of the battery voltage Vbat intensively limited to key points, so that the number of times of sampling can be reduced, and the battery life measurement time can be shortened. It is possible to reduce battery capacity consumption and extend battery life. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method,
The battery capacity consumption can be reduced to extend the life of the battery, and the cost of the apparatus can be reduced. Specifically, as the battery voltage Vbat for recognizing the operational limit of the battery life, the battery voltage Vbat that starts immediately before the application of a large load and immediately after the disconnection of the large load after the application of the large load.
During the recovery period of bat, the battery voltage Vbat is sampled at a constant sampling cycle and the battery voltage Vbat is intensively measured, so that the number of times of sampling can be reduced, and the calculated battery voltage Vbat immediately before the application of a large load becomes large. The recovery time of the battery voltage Vbat, which is the time required for the battery voltage Vbat immediately after the application of the large load to recover to half the difference from the battery voltage Vbat immediately after the application of the load, is calculated, and the end of the battery life is determined and calculated. If the recovered time of the battery voltage Vbat exceeds the recovery reference time of the battery voltage Vbat, it is automatically recognized that the battery life is at the operation limit, and the battery exhaustion notification command 1 is issued.
Since 2b is generated, it is possible to avoid unnecessary battery voltage Vbat measurement being repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery, and to avoid unnecessary consumption of battery capacity. As a result, the life of the battery can be extended.

It is also possible to use battery electromotive force as battery physical properties. In this case, the change in the battery electromotive force, which constitutes the change in the battery voltage Vbat together with the change in the internal resistance, is used as the change in the battery physical properties that occurs at the end of the battery life, and is large as the battery voltage Vbat for recognizing the operational limit of the battery life. Since the battery voltage Vbat is sampled at a constant sampling cycle during the recovery period of the battery voltage Vbat that starts immediately before the load application and immediately after the large load is disconnected after the large load application, the battery voltage Vbat is intensively measured. The battery voltage characteristic for the temperature / load model is stored, and a step of measuring the battery voltage Vbat over a long period of time using the battery voltage characteristic can be omitted. The battery voltage Vb, which is the time required for the battery voltage Vbat immediately after the application of the heavy load to recover to half the difference between the battery voltage Vbat and the battery voltage Vbat immediately after the application of the heavy load. The recovery time of at is calculated and the end of the battery life is determined. When the calculated recovery time of the battery voltage Vbat exceeds the recovery reference time of the battery voltage Vbat, the battery life is automatically recognized as the operation limit. To generate the battery exhaustion command 12b, the abnormal value occurring during the recovery period of the battery physical properties (battery voltage) after the temporary increase in the load 21 and the gradual voltage change due to a decrease in the ambient temperature and the like continue. Outliers can be eliminated. Further, the change in the battery electromotive force, which constitutes the change in the battery voltage Vbat together with the change in the internal resistance, is used as a change in the battery physical properties occurring at the end of the battery life, and immediately before the large load is applied and immediately after the large load is separated after the large load is applied. During the recovery period of the starting battery voltage Vbat, the battery voltage Vbat is sampled at a constant sampling cycle, and the battery voltage Vbat is sampled.
Intensive measurement, compared to the case where uniform sampling is performed over the entire measurement time, it is possible to perform high-efficiency sampling of the battery voltage Vbat intensively only at key points, The number of times of sampling can be reduced, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the battery voltage Vbat for recognizing the operation limit of the battery life is determined at a constant sampling cycle during the recovery period of the battery voltage Vbat which starts immediately before the application of the large load and immediately after the disconnection of the large load after the application of the large load. Since the battery voltage Vbat is intensively measured by sampling the voltage Vbat, the number of times of sampling can be reduced, and the calculated difference between the battery voltage Vbat immediately before the application of the large load and the battery voltage Vbat immediately after the application of the large load is one. The recovery time of the battery voltage Vbat, which is the time required for the battery voltage Vbat to recover immediately after the application of a large load to / 2, is calculated, and the end of the battery life is determined. The recovery time of the calculated battery voltage Vbat is the battery voltage Vbat. When the time exceeds the recovery reference time, the battery life is automatically recognized as being at the operation limit, and the battery exhaustion command 12b is generated. It is possible to avoid a situation in which unnecessary measurement of the battery voltage Vbat is repeated in a short cycle at an unnecessary time, and it is possible to avoid unnecessary consumption of the battery capacity and extend the life of the battery. .

The sampling reference time generating means 18 has a function of generating a sampling reference time signal 18a for setting a sampling cycle, and is constituted mainly by a timer IC.

The time measuring means 16 has a function of generating a time signal 16a, and is constituted mainly by a timer IC. The life determining means 12 generates a sampling signal 12a for instructing measurement of the battery voltage Vbat immediately before the application of a large load based on the sampling reference time signal 18a, and immediately after disconnection of the large load based on the sampling reference time signal 18a. A sampling signal 12a for instructing measurement of the battery voltage Vbat is generated during the recovery period of the battery voltage Vbat that starts, and a difference between the battery voltage Vbat immediately before the heavy load is applied and the battery voltage Vbat immediately after the heavy load is applied is calculated. Based on the time signal 16a, the time required until the battery voltage Vbat immediately after the application of the large load recovers to half the difference between the battery voltage Vbat immediately before the application of the large load and the battery voltage Vbat immediately after the application of the large load is calculated. A recovery reference time of the battery voltage Vbat is selected, and the calculated recovery time of the battery voltage Vbat and the battery voltage Vb are selected.
The recovery time of the battery voltage Vbat is compared with the recovery reference time of at, and the end of the battery life is determined.
It has a function of automatically recognizing that the battery life is at the operating limit when the recovery reference time of at has exceeded the operation limit and generating the battery exhaustion notification command 12b, and is mainly configured by a microcomputer.

The voltage measuring means 14 outputs the sampling signal 1
2a, the battery voltage Vbat is measured, and the measured voltage signal 1
4a, and has a function of a voltmeter.

The memory (not shown) has a function of retaining data defining a reference recovery time of the battery voltage Vbat according to the measured temperature of the battery voltage Vbat, and is constituted mainly by a semiconductor storage device such as an EEPROM. Have been.

A memory (not shown) holds a recovery reference time of the battery voltage Vbat corresponding to the measured temperature of the battery voltage Vbat, and makes it possible to read out the battery voltage Vbat as necessary, thereby recognizing the operational limit of the battery life. The battery voltage Vbat is sampled at a fixed sampling cycle during the recovery period of the battery voltage Vbat which starts immediately before the application of the large load and immediately after the large load is disconnected after the application of the large load, and the measured temperature of the battery voltage Vbat is obtained. Battery voltage Vbat taking into account the effect
Can be measured intensively. Also, the battery voltage Vba
The battery voltage Vbat immediately before the application of the large load and the battery voltage Vb immediately after the application of the large load, which are calculated in consideration of the influence of the measured temperature of t.
Battery voltage Vbat immediately after application of a large load up to half of the difference from at
The recovery time of the battery voltage Vbat, which is the time required for the battery voltage Vbat to recover, is calculated in consideration of the influence of the measured temperature of the battery voltage Vbat, and the end of the battery life is determined. The battery voltage Vba taking into account the effect of the measured temperature selected according to the measured temperature of the voltage Vbat
When the recovery reference time of t is exceeded, the battery life is automatically recognized as being at the operation limit and the battery exhaustion command 12b is generated, so that the battery properties (battery voltage) after the temporary load 21 increases. Excludes abnormal values that occur during the recovery period of the battery and gradual voltage changes caused by a decrease in ambient temperature, etc., are excluded in accordance with the measured temperature of the battery voltage Vbat, taking into account the effect of the measured temperature of the battery voltage Vbat. Will be able to do it.

The battery voltage Vba immediately before the application of a large load is calculated taking into account the effect of the measured temperature on the battery voltage Vbat.
The recovery time of the battery voltage Vbat, which is the time required for the battery voltage Vbat immediately after the application of the heavy load to recover to half of the difference between t and the battery voltage Vbat immediately after the application of the heavy load, is determined by the battery voltage Vbat.
The battery voltage Vbat selected in accordance with the measured temperature of the battery voltage Vbat is calculated by taking into account the effect of the measured temperature of the battery voltage Vbat.
When the reference time exceeds the recovery reference time of at, the battery life is automatically recognized as being at the operation limit, and the battery exhaustion notification command 12b is generated. A situation in which the measurement of the voltage Vbat is repeated in a short cycle can be avoided by taking the influence of the measurement temperature of the battery voltage Vbat into consideration, and the life of the battery is extended by avoiding unnecessary consumption of the battery capacity. Will be able to do it.

That is, during the recovery period of the battery voltage Vbat which starts immediately before the application of the large load and immediately after the disconnection of the large load after the application of the large load, the battery voltage Vbat is sampled at a constant sampling cycle to measure the battery voltage Vbat intensively. As a result, battery electromotive force and battery voltage Vbat
Due to the battery voltage characteristics such that the battery voltage drops, it is determined that the notification should be sent to the management center, but the battery capacity required for the notification operation and the subsequent coping operation is not left. This can be avoided by taking into account the influence of the measurement temperature.

The life determining means 12 selects and reads out the recovery reference time data of the battery voltage Vbat according to the measured temperature of the battery voltage Vbat, and if the calculated recovery time of the battery voltage Vbat exceeds the recovery reference time. The battery life is automatically recognized as being at the operating limit, and a battery exhaustion notification command 12b is generated. As described above, according to the battery life monitoring device 10, the battery voltage Vbat is measured during the recovery period of the battery voltage Vbat after the application of a large load as the battery voltage Vbat for recognizing the operation limit of the battery life.
The battery voltage characteristic for the expected temperature / load model is stored in advance, and the step of measuring the battery voltage Vbat for a long time using the battery voltage characteristic can be omitted. It is possible to eliminate an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after the increase and an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues.

Since the battery voltage Vbat is measured during the recovery period of the battery voltage Vbat after the application of a large load, the battery voltage Vbat is measured more intensively than in the case where uniform sampling is performed over the entire measurement time. The battery voltage Vbat can be sampled, the number of samplings can be reduced, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be extended. become able to. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and a situation in which unnecessary measurement of the battery voltage Vbat is repeated in a short cycle at a time when measurement is unnecessary immediately after the start of operation of the battery can be avoided. Unnecessary consumption of battery capacity can be avoided to extend battery life.

That is, the battery voltage Vbat after the application of a large load
Although the battery voltage Vbat was measured during the recovery period of the battery, it was determined that it should be reported to the management center due to the battery voltage characteristics that caused the battery electromotive force and battery voltage Vbat to drop rapidly at the end of battery life. Therefore, it is possible to avoid a situation where the battery capacity required for the notification operation and the subsequent coping operation is not left.

Next, a battery life monitoring method executed by the battery life monitoring device of the first embodiment will be described.

FIG. 2 is a battery voltage Vbat fluctuation diagram for explaining a battery life monitoring method executed by the battery life monitoring device of the first embodiment.

The battery life monitoring method according to the present embodiment mainly includes the first to fourth steps, is described by a program code executable by a microcomputer, and includes a semiconductor storage device such as an EEPROM, It is stored in a magneto-optical storage means such as an MO or a magnetic storage means such as a magnetic disk.

In the first step, prior to the execution of the second step,
Immediately before a large load is applied as the battery voltage Vbat for recognizing the operation limit of the battery life (periods S1 to S10, Sα to S
This is a step of controlling the battery voltage Vbat of (period of (α + 10)) by controlling the voltage measuring means 14, and is described by a program code executable by a microcomputer.

In the 1C step, prior to the execution of the second step, immediately before the application of a large load (specifically, S1 to S1 shown in FIG. 2)
The battery voltage Vbat in the period of S10, the period of Sα to S (α + 10)) is described by a program code for sampling the battery voltage Vbat at a constant sampling cycle (= △ interval) to generate the measurement voltage signal 14a. ing.

In the first step C, prior to the execution of the second step, immediately before the application of a large load (periods S1 to S10, Sα to S
The battery voltage Vbat during the period of (α + 10) is set to a predetermined number of times of sampling (specifically, 10 times of S1 to S10 and Sα to
It is described by a program code for sampling only S (α + 10) times to generate the measurement voltage signal 14a.

By providing such a first step,
Immediately before a large load is applied as the battery voltage Vbat for recognizing the operation limit of the battery life (periods S1 to S10, Sα to S
(Period of (α + 10)) and the battery voltage Vba after applying a large load.
Since the battery voltage Vbat is measured during the recovery period of t (specifically, the period from S11 to Sβ and the period from S (α + 1) to Sβ shown in FIG. 2), the battery voltage characteristics with respect to the temperature / load model expected in advance are determined. The step of measuring the battery voltage Vbat over a long period of time by using the stored battery voltage characteristics can be dispensed with, and the recovery of the battery properties (battery voltage) after the temporary increase of the load 21 can be eliminated. It is possible to eliminate abnormal values that occur during a period and abnormal values in which a gradual voltage change due to a decrease in ambient temperature or the like continues.

The recovery period of the battery voltage Vbat immediately before the application of the large load (the period of S1 to S10, the period of Sα to S (α + 10)) and the recovery period of the battery voltage Vbat after the application of the large load (the period of S11 to Sβ shown in FIG. Since the battery voltage Vbat is measured during the period of (α + 1) to Sβ), the sampling of the battery voltage Vbat can be performed more intensively in a limited area than in the case where the uniform sampling is performed over the entire measurement time. As a result, the number of times of sampling can be reduced, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and a situation in which unnecessary measurement of the battery voltage Vbat is repeated in a short cycle at a time when measurement is unnecessary immediately after the start of operation of the battery can be avoided. Unnecessary consumption of battery capacity can be avoided to extend battery life.

That is, immediately before the application of a large load (S1 to S10
, The period of Sα to S (α + 10)) and the recovery period of the battery voltage Vbat after the heavy load is applied (S11 to S shown in FIG. 2).
During the period of β, the period of S (α + 1) to Sβ), the battery voltage Vba
As a result of measuring t, it is determined that notification should be made to the management center due to battery voltage characteristics such as rapid drop of battery electromotive force and battery voltage Vbat at the end of battery life. Can be avoided.

In the second step, a recovery period of the battery voltage Vbat after application of a large load (the period of S11 to Sβ shown in FIG.
(A period of (α + 1) to Sβ), a step of measuring the battery voltage Vbat, which is described by a program code executable by a microcomputer, and a second A step of connecting a large load to the battery for a predetermined time. A second B step of disconnecting the large load from the battery, and a recovery period of the battery voltage Vbat (immediately after S10 or S (α + 10) shown in the figure) immediately after the large load is removed (the period of S11 to Sβ shown in FIG. 2). , S (α + 1) to Sβ) during the measurement of the battery voltage Vbat.

Here, the 2C step is a recovery period of the battery voltage Vbat (immediately after S10 or S (α + 10) shown in FIG. 2) immediately after disconnection of a large load (S11 to S11 shown in FIG. 2).
It is described by a program code for sampling the battery voltage Vbat at a fixed sampling period during the period of Sβ, the period of S (α + 1) to Sβ, and generates the measurement voltage signal 14a.

By providing such a step, the battery voltage Vbat for recognizing the operation limit of the battery life is set immediately before the application of a large load (Sα to S (α +
10)) and a recovery period of the battery voltage Vbat (S11 to S11 shown in FIG. 2) which starts immediately after disconnection of the large load after the application of the large load (immediately after S10 or S (α + 10) shown in FIG. 2).
During the period of Sβ, the period of S (α + 1) to Sβ), the battery voltage Vbat is sampled at a constant sampling cycle and the battery voltage Vbat is measured intensively. The battery voltage Vbat is stored for a long time using this battery voltage characteristic.
Is unnecessary, and a gradual voltage change caused by an abnormal value or a drop in ambient temperature occurring during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 can be eliminated. It becomes possible to eliminate continuous abnormal values.

In addition, immediately before the application of the large load (the period of S1 to S10, the period of Sα to S (α + 10)) and immediately after the separation of the large load after the application of the large load (immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (+10)) (the period of S11 to Sβ shown in FIG. 2, S (α + 1) to Sβ
Battery voltage Vbat at a constant sampling cycle during
And the battery voltage Vbat is intensively measured, so that the battery voltage Vbat is intensively limited to key points, compared to a case where uniform sampling is performed over the entire measurement time.
High-efficiency sampling, the number of sampling times can be reduced, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be extended. become able to. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan.

Further, in the second step C, a recovery period of the battery voltage Vbat (immediately after S10 or immediately after S (α + 10) shown in FIG. 2) (S11 to S11 shown in FIG. 2) starts immediately after disconnection of a large load.
It is described by a program code that samples the battery voltage Vbat a predetermined number of times during the period of β (the period of S (α + 1) to Sβ) to generate the measurement voltage signal 14a.

By providing such a step, the battery voltage Vbat for recognizing the operation limit of the battery life is set immediately before the application of a large load (the period from S1 to S10, Sα to S (α +
10)) and a recovery period of the battery voltage Vbat (S11 to S11 shown in FIG. 2) which starts immediately after disconnection of the large load after the application of the large load (immediately after S10 or S (α + 10) shown in FIG. 2).
During the period of Sβ, the period of S (α + 1) to Sβ), the battery voltage Vbat is sampled at a constant sampling cycle and the battery voltage Vbat is measured intensively. The battery voltage Vbat is stored for a long time using this battery voltage characteristic.
Is unnecessary, and a gradual voltage change caused by an abnormal value or a drop in ambient temperature occurring during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 can be eliminated. It becomes possible to eliminate continuous abnormal values.

In addition, immediately before the application of a large load (period S1 to S10, the period of Sα to S (α + 10)), and immediately after the application of the large load is separated (immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (+10)) (the period of S11 to Sβ shown in FIG. 2, S (α + 1) to Sβ
Battery voltage Vbat at a constant sampling cycle during
And the battery voltage Vbat is intensively measured, so that the battery voltage Vbat is intensively limited to key points, compared to a case where uniform sampling is performed over the entire measurement time.
High-efficiency sampling, the number of sampling times can be reduced, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be extended. become able to. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the battery voltage Vbat for recognizing the operation limit of the battery life is immediately before the application of a large load (the period of S1 to S10, the period of Sα to S (α + 10)) and immediately after the separation of the large load after the application of the large load. (Immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (α + 10)) (the period from S11 to Sβ shown in FIG. 2 and S (α + 1) to S (α + 1))
During the period β, the battery voltage Vba
Since t is sampled and the battery voltage Vbat is intensively measured, the number of times of sampling can be reduced, and unnecessary battery voltage Vbat measurement is repeated in a short cycle at a time when measurement is unnecessary just after starting operation of the battery. This makes it possible to avoid situations, and to avoid unnecessary consumption of battery capacity, thereby extending battery life.

That is, immediately before the application of a large load (S1 to S10
, The period of Sα to S (α + 10)) and immediately after the separation of the large load after the application of the large load (immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (α + 10)) (the period from S11 to Sβ shown in FIG. 2 and S (α + 1) to S (α + 1))
During the period β, the battery voltage Vba
As a result of sampling the t and intensively measuring the battery voltage Vbat, the battery electromotive force and battery voltage Vba
In order to avoid the situation where the battery capacity required for the notification operation and the subsequent coping operation is not left even though it is determined that the notification should be made to the management center due to the battery voltage characteristics such that t decreases. become.

As described above, steps 2A to 2A
By providing the step C, the battery voltage Vbat for recognizing the operation limit of the battery life is set immediately before the application of a large load (S1).
To S10, Sα to S (α + 10)) and immediately after disconnection of the large load after the application of the large load (immediately after S10 or immediately after S (α + 10) shown in the figure).
Recovery period (S11 to Sβ shown in FIG. 2, S (α +
Since the battery voltage Vbat is intensively measured during 1) to Sβ, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage characteristics are used for a long time using the battery voltage characteristics. A step of measuring Vbat can be omitted, and a gradual voltage change caused by an abnormal value or a drop in ambient temperature that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in load 21 and the like. Can eliminate consecutive abnormal values.

Further, immediately before the application of a large load (the period of S1 to S10, the period of Sα to S (α + 10)) and immediately after the separation of the large load after the application of the large load (immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (+10)) (the period of S11 to Sβ shown in FIG. 2, S (α + 1) to Sβ
), The battery voltage Vbat is intensively measured during
Compared to the case where uniform sampling is performed over the entire measurement time, the sampling of the battery voltage Vbat with high efficiency can be performed intensively and limited to key points, and the number of times of sampling can be reduced. In addition, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and a situation in which unnecessary measurement of the battery voltage Vbat is repeated in a short cycle at a time when measurement is unnecessary immediately after the start of operation of the battery can be avoided. Unnecessary consumption of battery capacity can be avoided to extend battery life.

That is, immediately before the application of a large load (S1 to S10
, The period of Sα to S (α + 10)) and immediately after the separation of the large load after the application of the large load (immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (α + 10)) (the period from S11 to Sβ shown in FIG. 2 and S (α + 1) to S (α + 1))
As a result of intensive measurement of the battery voltage Vbat during the period of β, the battery electromotive force and battery voltage Vbat
In order to avoid the situation where the battery capacity required for the notification operation and the following coping operation is not left even though it is determined that the notification should be made to the management center due to the battery voltage characteristics such that the battery voltage drops. Become.

In the third step, the voltage measuring means 14 is controlled to recover the battery voltage Vbat from the battery voltage Vbat measured in the second step ((Tβ-T11) and (Tγ-T
This is a step of calculating (α + 1))) using the time measuring means 16 and is described by a program code executable by a microcomputer.

In the third step, specifically, immediately before the application of a large load (period S1 to S10, period Sα to S (α + 10))
Immediately before a large load is applied based on the measured voltage signal 14a sampled during the period (S1 to S10, Sα to S (α + 1
0A), a third A step of calculating the battery voltage Vbat in the period (0), and immediately before the application of a large load (periods S1 to S10, Sα to S
A third A step of calculating the battery voltage Vbat immediately before the application of the large load (the period of S1 to S10, the period of Sα to S (α + 10)) based on the measured voltage signal 14a sampled during the period of (α + 10); Sampling was performed during the recovery period of the battery voltage Vbat (the period from S11 to Sβ and the period from S (α + 1) to Sβ shown in FIG. 2), which started immediately after the disconnection (immediately after S10 and immediately after S (α + 10) shown in FIG. 2). The 3B step of calculating the battery voltage Vbat immediately after the application of the large load based on the measured voltage signal 14a, and the immediately before the application of the large load calculated in the 3B step (periods S1 to S10, Sα
To S (α + 10)) and the battery voltage Vbat immediately after the application of the large load calculated in the step 3B.
3C step of calculating the difference between the above and the immediately before the application of the large load calculated in the 3C step (periods of S1 to S10, Sα to
The difference between the battery voltage Vbat during the period of S (α + 10)) and the battery voltage Vbat immediately after the application of a large load ((VS1−VS11), (VS
α-VS (α + 11))), the recovery time of the battery voltage Vbat ((Tβ−T11), (Tγ−
T (α + 1))).

By providing the steps 3A to 3D, the battery voltage Vbat for recognizing the operation limit of the battery life is set immediately before the application of a large load (periods S1 to S10, Sα to S (α + 10) Period) and immediately after the separation of the large load after the application of the large load (immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (α + 10)) (the period from S11 to Sβ shown in FIG. 2 and S (α + 1) to S (α + 1))
During the period β, the battery voltage Vba
Since t is sampled and the battery voltage Vbat is intensively measured, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage Vbat is measured over a long period of time using the battery voltage characteristics. Such a step can be made unnecessary, and immediately before the calculated large load is applied (S1 to S
The difference ((VS1) between the battery voltage Vbat during the period S10 and the period Sα to S (α + 10) and the battery voltage Vbat immediately after the heavy load is applied.
−VS11), the recovery time ((Tβ−T) of the battery voltage Vbat, which is the time required until the battery voltage Vbat recovers immediately after the application of a large load up to half of (VSα−VS (α + 11))).
11), (Tγ−T (α + 1))) is calculated, so that an abnormal value occurring during the recovery period of the battery properties (battery voltage) after the temporary increase of the load 21 and a gradual decrease due to a decrease in the ambient temperature, etc. It becomes possible to eliminate abnormal values in which the voltage changes continuously.

In addition, immediately before the application of a large load (period S1 to S10, the period of Sα to S (α + 10)), and immediately after the application of the large load is disconnected (immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (+10)) (the period of S11 to Sβ shown in FIG. 2, S (α + 1) to Sβ
Battery voltage Vbat at a constant sampling cycle during
And the battery voltage Vbat is intensively measured, so that the battery voltage Vbat is intensively limited to key points, compared to a case where uniform sampling is performed over the entire measurement time.
High-efficiency sampling, the number of sampling times can be reduced, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be extended. become able to. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the battery voltage Vbat for recognizing the operation limit of the battery life is immediately before the application of a large load (the period of S1 to S10, the period of Sα to S (α + 10)) and immediately after the separation of the large load after the application of the large load. (Immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (α + 10)) (the period from S11 to Sβ shown in FIG. 2 and S (α + 1) to S (α + 1))
During the period β, the battery voltage Vba
Since t is sampled and the battery voltage Vbat is intensively measured, the number of times of sampling can be reduced.
The difference between the battery voltage Vbat during the period (α + 10) and the battery voltage Vbat immediately after the application of the large load ((VS1−VS11), (VSα)
−VS (α + 11))) The recovery time ((Tβ−T11), (Tγ−T) of the battery voltage Vbat, which is the time required until the battery voltage Vbat recovers immediately after the application of the large load to half of the load
Since (α + 1))) is calculated, it is possible to avoid unnecessary battery voltage Vbat measurement being repeated in a short cycle at a time when measurement is not necessary just after starting operation of the battery. Battery life can be avoided and battery life can be extended.

That is, immediately before the application of a large load (S1 to S10
, The period of Sα to S (α + 10)) and immediately after the separation of the large load after the application of the large load (immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (α + 10)) (the period from S11 to Sβ shown in FIG. 2 and S (α + 1) to S (α + 1))
During the period β, the battery voltage Vba
As a result of sampling the t and intensively measuring the battery voltage Vbat, the battery electromotive force and battery voltage Vba
In order to avoid the situation where the battery capacity required for the notification operation and the subsequent coping operation is not left even though it is determined that the notification should be made to the management center due to the battery voltage characteristics such that t decreases. become.

The fourth step is a recovery time ((Tβ−T11), (Tγ−T (α)) of the battery voltage Vbat calculated in the third step.
+1))) to determine the end of the battery life and to recognize the operational limit of the battery life by controlling the life determining means 12, which is described by a program code executable by the microcomputer. I have.

In the fourth step, specifically, the battery voltage Vbat
To select the recovery reference time (1/2 recovery time) TD
Step A and the battery voltage Vba calculated in the step 3D
t recovery time ((Tβ-T11), (Tγ-T (α +
1))) and a recovery reference time (1/2 recovery time) TD of the battery voltage Vbat, a fourth step B, and an end-of-life determination of the battery life, and the battery voltage V calculated in the third 3D step.
bat recovery time ((Tβ−T11), (Tγ−T (α +
1))) exceeds the recovery reference time (1/2 recovery time) TD of the battery voltage Vbat ((Tβ−T11)> TD,
(Tγ−T (α + 1))> TD) includes a 4C step of automatically recognizing that the battery life is at the operation limit and generating the battery exhaustion notification command 12b.

Here, the fourth step A is a recovery reference time (1/2) of the battery voltage Vbat according to the measured temperature of the battery voltage Vbat.
The recovery time is described by a program code for selecting TD.

By providing the fourth step A, the battery voltage Vba for recognizing the operation limit of the battery life is obtained.
Immediately before the application of a large load as t (S1 to S10, Sα to
S (α + 10)) and the recovery period of the battery voltage Vbat (immediately after S10 or S (α + 10) shown in FIG. 2) immediately after disconnection of the large load after application of the large load (S11 to Sβ shown in FIG. 2). During the period S (α + 1) to Sβ), the battery voltage Vbat is sampled at a constant sampling cycle and the battery voltage Vbat is measured intensively, so that the battery voltage characteristics for the temperature / load model expected in advance are stored. It is possible to eliminate the need for a process of measuring the battery voltage Vbat over a long period of time using this battery voltage characteristic.
The difference between the battery voltage Vbat during the period of Sα to S (α + 10) and the battery voltage Vbat immediately after the application of a large load ((VS1−VS11),
(VSα−VS (α + 11))) The recovery time of the battery voltage Vbat ((Tβ−T11), (T
γ-T (α + 1))) to determine the end of the battery life, and to calculate the recovery time of the battery voltage Vbat ((Tβ−T
11), (Tγ−T (α + 1))) exceeds the recovery reference time (１ ／ recovery time) TD of the battery voltage Vbat selected according to the measured temperature of the battery voltage Vbat ((Tβ
−T11)> TD, (Tγ−T (α + 1))> TD) automatically recognizes that the battery life is the operation limit and generates the battery exhaustion command 12b. Abnormal values that occur during the recovery period of the battery physical properties (battery voltage) and gradual voltage changes due to a drop in ambient temperature, etc., can be eliminated by taking into account the effect of the measured temperature of the battery voltage Vbat, which is an abnormal value. become able to.

The fourth step C is described by a program code for generating a dead battery notification command 12b after the battery voltage Vbat has sufficiently recovered.

By providing such a 4C step, the battery exhaustion command 12b is generated after the battery voltage Vbat has sufficiently recovered, so that the battery electromotive force and the battery voltage Vbat are rapidly increased at the end of the battery life. Can be avoided, and as a result, when it is determined that a notification should be made to the management center, there is no remaining battery capacity required for a notification operation or a subsequent response operation. It is possible to avoid the problem and to accurately report the battery exhaustion.

As described above, the fourth through fourth steps are performed.
By providing the step C, the battery voltage Vbat for recognizing the operation limit of the battery life is set immediately before the application of a large load (S1).
To S10, Sα to S (α + 10)) and immediately after disconnection of the large load after the application of the large load (immediately after S10 or immediately after S (α + 10) shown in the figure).
Recovery period (S11 to Sβ shown in FIG. 2, S (α +
During the period from 1) to Sβ), the battery voltage Vbat is sampled at a constant sampling cycle and the battery voltage Vbat is intensively measured. The step of measuring the battery voltage Vbat for a long time using the voltage characteristics can be omitted, and the calculated large load can be applied immediately before (the period of S1 to S10, the period of Sα to S (α + 10)).
((VS1-VS11), (VSα-VS (α + 11))) between the battery voltage Vbat of FIG.
The recovery time ((Tβ−T11), (Tγ−T (α + 1))) of the battery voltage Vbat, which is the time required for the battery voltage Vbat to recover immediately after the application of the large load to の, is calculated, and the battery life is calculated. Battery terminal Vba
t recovery time ((Tβ-T11), (Tγ-T (α +
1))) exceeds the recovery reference time (1/2 recovery time) TD of the battery voltage Vbat ((Tβ−T11)> TD,
When (Tγ−T (α + 1))> TD), the battery life is automatically recognized as being at the operation limit, and the battery exhaustion command 12b is generated. 3), it is possible to eliminate abnormal values that occur during the recovery period and abnormal values in which a gradual voltage change due to a decrease in ambient temperature or the like continues.

In addition, immediately before the application of a large load (the period of S1 to S10, the period of Sα to S (α + 10)) and immediately after the separation of the large load after the application of the large load (immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (+10)) (the period of S11 to Sβ shown in FIG. 2, S (α + 1) to Sβ
Battery voltage Vbat at a constant sampling cycle during
And the battery voltage Vbat is intensively measured, so that the battery voltage Vbat is intensively limited to key points, compared to a case where uniform sampling is performed over the entire measurement time.
High-efficiency sampling, the number of sampling times can be reduced, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be extended. become able to. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the battery voltage Vbat for recognizing the operation limit of the battery life is immediately before the application of a large load (the period of S1 to S10, the period of Sα to S (α + 10)) and immediately after the separation of the large load after the application of the large load. (Immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (α + 10)) (the period from S11 to Sβ shown in FIG. 2 and S (α + 1) to S (α + 1))
During the period β, the battery voltage Vba
Since t is sampled and the battery voltage Vbat is intensively measured, the number of times of sampling can be reduced.
The difference between the battery voltage Vbat during the period (α + 10) and the battery voltage Vbat immediately after the application of the large load ((VS1−VS11), (VSα)
−VS (α + 11))) The recovery time ((Tβ−T11), (Tγ−T) of the battery voltage Vbat, which is the time required until the battery voltage Vbat recovers immediately after the application of the large load to half of the load
(Α + 1))) to determine the end of the battery life and to calculate the recovery time of the battery voltage Vbat ((Tβ−T1
1), (Tγ−T (α + 1))) exceeds the recovery reference time (１ ／ recovery time) TD of the battery voltage Vbat ((Tβ−T11)> TD, (Tγ−T (α + 1)) >
At TD), the battery life is automatically recognized as being at the operating limit, and the battery exhaustion notification command 12b is generated, so that unnecessary battery voltage Vbat measurement is repeated in a short cycle at a measurement unnecessary time just after the start of battery operation. Can be avoided, and unnecessary battery capacity consumption can be avoided to extend the life of the battery.

That is, immediately before the application of a large load (S1 to S10
, The period of Sα to S (α + 10)) and immediately after the separation of the large load after the application of the large load (immediately after S10 shown in FIG.
The recovery period of the battery voltage Vbat (immediately after (α + 10)) (the period from S11 to Sβ shown in FIG. 2 and S (α + 1) to S (α + 1))
During the period β, the battery voltage Vba
As a result of sampling the t and intensively measuring the battery voltage Vbat, the battery electromotive force and battery voltage Vba
In order to avoid the situation where the battery capacity required for the notification operation and the subsequent coping operation is not left even though it is determined that the notification should be made to the management center due to the battery voltage characteristics such that t decreases. become.

As described above, according to the battery life monitoring method of the first embodiment, based on the calculated recovery time of the battery voltage Vbat ((Tβ−T11), (Tγ−T (α + 1))). Since the end of the battery life is determined and the operation limit of the battery life is recognized, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage Vbat is used for a long time using the battery voltage characteristics. This eliminates the need for a measurement step, and causes a gradual voltage change due to an abnormal value or a drop in ambient temperature that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21. Outliers can be eliminated.

Further, as compared with the case where the uniform sampling is performed over the entire measurement time, the sampling of the battery voltage Vbat can be performed intensively only at the key points, and the number of times of sampling can be reduced. Thus, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and a situation in which unnecessary measurement of the battery voltage Vbat is repeated in a short cycle at a time when measurement is unnecessary immediately after the start of operation of the battery can be avoided. Unnecessary consumption of battery capacity can be avoided to extend battery life.

As a result, although it is determined that a notification should be sent to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage Vbat drop rapidly at the end of the battery life, the notification operation and the subsequent Can be avoided.

Next, a second embodiment of the notification device of the present invention will be described with reference to the drawings.

FIG. 1 is a functional block diagram for explaining the operation of the battery life monitoring device 10 and the automatic notification device 30 according to the present invention.

FIG. 3 is a battery voltage Vbat variation diagram for explaining a battery life monitoring method executed by the battery life monitoring device of the second embodiment.

First, a battery life monitoring device used in the automatic notification device 30 of the second embodiment will be described. The basic configuration of the automatic notification device 30 according to the second embodiment is the same as that of the automatic notification device 30 according to the first embodiment. To

The battery life monitoring device 10 used in the automatic notification device 30 of the second embodiment includes a microcomputer which plays a central role in calculation, a sampling reference time generation means 18, a time measurement means 16, a voltage measurement means 14, The judging means 12 is constituted mainly by a memory (not shown).

The sampling reference time generating means 18 has a function of generating a sampling reference time signal 18a for setting the sampling period (Ts1, Ts2, Ts3, Ts4), and is constituted mainly by a timer IC. .

The time measuring means 16 has a function of generating a time signal 16a, and is constituted mainly by a timer IC.

The life judging means 12 uses the sampling signal 1 for instructing measurement of the battery voltage Vbat before the operation limit of the battery life based on the sampling reference time signal 18a.
2a, a sampling signal 12a for instructing measurement of the battery voltage Vbat during the fall period of the battery voltage Vbat based on the sampling reference time signal 18a, and the end of battery life determination based on the measured voltage signal 14a. And automatically generates a battery exhaustion instruction command 12b when it is automatically recognized that the battery life is at the operating limit, and is mainly configured by a microcomputer.

The voltage measuring means 14 outputs the sampling signal 1
2a, the battery voltage Vbat is measured, and the measured voltage signal 1
4a, and has a function of a voltmeter.

A memory (not shown) stores sampling periods (Ts1, Ts2, Ts) determined in advance in accordance with battery characteristics.
3, Ts4), and has a function of holding magnetic storage means such as a magnetic disk, magneto-optical storage means such as an MO, and semiconductor storage devices such as an EEPROM.

[0202] In this case, the voltage measuring means 14 selects and reads out sampling cycle data corresponding to the battery characteristics.
When the calculated fall time of the battery voltage Vbat is automatically recognized that the battery life is at the operation limit, the battery dead notification command 12b is generated.

As described above, according to the battery life monitoring device 10 of the second embodiment, the battery voltage Vbat for recognizing the operation limit of the battery life is defined as the drop of the battery voltage Vbat before the operation limit of the battery life. Since the battery voltage Vbat during the period is measured, the battery voltage characteristic for the expected temperature / load model is stored in advance, and the step of measuring the battery voltage Vbat over a long time using the battery voltage characteristic is unnecessary. It is possible to eliminate an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 and an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues. become able to.

In order to measure the battery voltage Vbat during the fall period of the battery voltage Vbat before the operation limit of the battery life as the battery voltage Vbat for recognizing the operation limit of the battery life,
Compared to the case where uniform sampling is performed over the entire measurement time, the sampling of the battery voltage Vbat can be performed intensively in a limited area, so that the number of samplings can be reduced, and the battery life can be reduced. Measurement time can be shortened, battery capacity consumption can be reduced, and battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of samplings can be reduced, and the unnecessary battery voltage V at the time when measurement is unnecessary immediately after the start of operation of the battery.
It is possible to avoid a situation where the bat measurement is repeated in a short cycle, and it is possible to avoid unnecessary consumption of the battery capacity and extend the battery life.

That is, as a battery voltage Vbat for recognizing the operation limit of the battery life, the battery voltage Vbat during the fall period of the battery voltage Vbat before the operation limit of the battery life was measured. And battery voltage Vbat
In order to avoid the situation where the battery capacity required for the notification operation and the following coping operation is not left even though it is determined that the notification should be made to the management center due to the battery voltage characteristics such that the battery voltage drops. Become.

Next, a battery life monitoring method executed by the battery life monitoring apparatus 10 according to the second embodiment will be described.

In the battery life monitoring method of the second embodiment, the first step, the second step, the third step, and the fourth step are performed in order to monitor the battery voltage Vbat and recognize the operation limit of the battery life. And is described by a program code executable by a microcomputer.

In the first step, prior to the execution of the second step,
The program code for measuring the battery voltage Vbat before the operation limit of the battery life is described as the battery voltage Vbat for recognizing the operation limit of the battery life.

In the first step, prior to the execution of the second step, the battery voltage Vbat before the operation limit of the battery life is sampled at a constant sampling cycle (for example, Ts1), and the measured voltage signal 14a is measured. Is described by the program code that generates

By providing such a step in the first step, the battery voltage Vbat before the operating limit of the battery life is sampled at a constant sampling cycle to generate the measured voltage signal 14a. It is possible to improve the efficiency of the sampling process in a range where the change of Vbat is small, and to store the battery voltage characteristics for the expected temperature / load model in advance and use the battery voltage characteristics for a long time. A step of measuring the battery voltage Vbat can be omitted, and the temporary load 21
It is possible to eliminate an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after the increase and an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues.

Further, since the battery voltage Vbat is sampled a predetermined number of times during the fall period of the battery voltage Vbat to improve the efficiency of the sampling process, it is necessary to perform uniform sampling over the entire measurement time. In this way, efficient and high-speed sampling of the battery voltage Vbat can be performed intensively in a limited area, so that the number of times of sampling can be reduced, the battery life measurement time can be shortened, and the battery capacity consumption can be reduced. And the life of the battery can be prolonged. According to this,
The battery capacity consumed by the device that executes the battery life monitoring method can be reduced, the battery capacity consumption can be reduced, the battery life can be prolonged, and the device cost can be reduced. Become like Specifically, the battery voltage Vbat before the operating limit of the battery life can be sampled at a fixed sampling cycle to reduce the number of times of sampling. Battery voltage Vba
It is possible to avoid a situation in which t measurement is repeated in a short cycle, and it is possible to avoid unnecessary consumption of battery capacity and extend the battery life.

As a result, although it is determined that the notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage Vbat drop rapidly at the end of the battery life, the notification operation and the subsequent It is possible to avoid a situation where the battery capacity required for the coping operation is not left.

In the first step, prior to the execution of the second step, the battery voltage Vbat before the operating limit of the battery life is sampled a predetermined number of times and the measured voltage signal 14
This is described by a program code for generating a.

By providing such a step in the first step, the battery voltage Vbat before the operation limit of the battery life is sampled a predetermined number of times and the measured voltage signal 1
4a, the efficiency of the sampling process can be improved in a range where the change in the battery voltage Vbat is small, and the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage characteristics are stored in the memory. This eliminates the need for a step of measuring the battery voltage Vbat over a long period of time by using such a method. An abnormal value in which a gradual voltage change due to a decrease or the like continues can be eliminated.

Further, the efficiency of the sampling process is improved by sampling the battery voltage Vbat before the operation limit of the battery life a predetermined number of times. In this way, efficient and high-speed sampling of the battery voltage Vbat can be performed intensively, the number of samplings can be reduced, the battery life measurement time can be shortened, and the battery capacity consumption can be reduced. Thus, the life of the battery can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the battery voltage Vbat before the operation limit of the battery life can be sampled a predetermined number of times to reduce the number of times of sampling. Can be avoided in a short cycle, and unnecessary battery capacity consumption can be avoided to extend the life of the battery.

As a result, in spite of the judgment that the notification should be sent to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage Vbat drop rapidly at the end of the battery life, the notification operation and the subsequent Can be avoided.

In the second step, the physical property value (specifically, the battery voltage Vbat) measured using the voltage measuring means 14 in order to recognize the operation limit of the battery life using the life determining means 12 is used.
When the battery voltage Vbat drops (ΔVbat1, ΔVbat
2, ΔVbat3), the sampling period (Ts1, Ts2, Ts3, Ts4) of the battery voltage Vbat is gradually shortened (Ts1 → T
s2, Ts2 → Ts3, Ts3 → Ts4, Ts1>Ts2>Ts3> Ts
4) Then, it is described in a program code for measuring the battery voltage Vbat and generating the measured voltage signal 14a.

In the second step, specifically, the battery voltage Vbat
If the measured value indicates the operating limit of the battery life, the sampling period (Ts1, Ts2, Ts3, Ts4) is shortened by a predetermined period in accordance with the battery characteristics (Ts1 → Ts2, Ts2).
s2 → Ts3, Ts3 → Ts4, Ts1>Ts2>Ts3> Ts4), and measures the battery voltage Vbat to generate the measurement voltage signal 14a.

Further, in the second step, the sampling period (Ts1, Ts2, Ts3, Ts4) is determined in advance in accordance with the battery characteristics when the measured value of the battery voltage Vbat indicates a value before the operation limit of the battery life. Only longer (Ts2 → Ts1, Ts3 →
Ts2, Ts4 → Ts3, Ts1>Ts2>Ts3> Ts4), and measures the battery voltage Vbat to generate a measurement voltage signal 14a.

In the second step, in other words, the battery voltage Vbat
Of the battery voltage Vbat during the falling period (ΔVbat
1, ΔVbat2, ΔVbat3) (S1 → Ts2, Ts2 → Ts3, Ts3 → Ts4, Ts1)
>Ts2>Ts3> Ts4), which is described by a program code for sampling the battery voltage Vbat to generate the measurement voltage signal 14a.

By providing such a step in the second step, the sampling cycle (Ts1, Ts2, Ts2,
Ts3, Ts4) are longer by a predetermined period according to the battery characteristics (Ts2 → Ts1, Ts3 → Ts2, Ts4 → Ts3, Ts1).
>Ts2>Ts3> Ts4) to measure the battery voltage Vbat and generate the measurement voltage signal 14a. Therefore, it is possible to increase the efficiency of the sampling process in a range where the change in the battery voltage Vbat is small, and it The battery voltage characteristic for the temperature / load model is stored, and a step of measuring the battery voltage Vbat over a long period of time using the battery voltage characteristic can be omitted, and the temporary increase in the load 21 can be eliminated. It is possible to eliminate an abnormal value that occurs during a later recovery period of battery physical properties (battery voltage) and an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues.

In a range where the change in the battery voltage Vbat is small, the sampling period (Ts1, Ts2, Ts3, Ts4) is longer by a predetermined period (Ts2 → Ts) in accordance with the battery characteristics.
s1, Ts3 → Ts2, Ts4 → Ts3, Ts1>Ts2>Ts3> Ts
4) The battery voltage Vbat is sampled to improve the efficiency of the sampling process, so that the efficiency of the battery voltage Vbat is intensively limited to the key points as compared with the case where uniform sampling is performed over the entire measurement time. And high-speed sampling can be performed, the number of samplings can be reduced, the battery life measurement time can be shortened, battery capacity consumption can be reduced, and battery life can be extended. become able to. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the sampling period (Ts1, Ts2, Ts) is set in a range where the change in the battery voltage Vbat is small.
s3, Ts4) longer by a predetermined period according to the battery characteristics (Ts2 → Ts1, Ts3 → Ts2, Ts4 → Ts3, Ts1>
Ts2>Ts3> Ts4), the battery voltage Vbat can be sampled to reduce the number of times of sampling, and unnecessary battery voltage Vbat measurement is repeated in a short cycle at a time when measurement is not necessary just after starting operation of the battery. The situation can be avoided, and unnecessary battery capacity consumption can be avoided to extend the life of the battery.

As a result, although it is determined that the notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage Vbat drop rapidly at the end of the battery life, the notification operation and the subsequent It is possible to avoid a situation where the battery capacity required for the coping operation is not left.

By providing such a second step,
When the measured value of the battery voltage Vbat indicates the operation limit of the battery life, the sampling period (Ts1, Ts2, Ts3, Ts)
4) is shortened by a predetermined period according to the battery characteristics (Ts1 → Ts2, Ts2 → Ts3, Ts3 → Ts4, Ts1>Ts2>
Ts3> Ts4), and the battery voltage Vbat is measured to generate the measured voltage signal 14a. Therefore, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage characteristics are used over a long period of time. A step of measuring the battery voltage Vbat can be omitted, and the temporary load 21
It is possible to eliminate an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after the increase and an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues.

In addition, compared to the case where uniform sampling is performed over the entire measurement time, the efficient and high-speed sampling of the battery voltage Vbat can be performed intensively and limited to a key point. The number of times can be reduced, the battery life measurement time can be reduced,
It is possible to reduce battery capacity consumption and extend battery life. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and a situation in which unnecessary measurement of the battery voltage Vbat is repeated in a short cycle at a time when measurement is unnecessary immediately after the start of operation of the battery can be avoided. Unnecessary consumption of battery capacity can be avoided to extend battery life.

As a result, although it is determined that a notification should be sent to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage Vbat drop rapidly at the end of the battery life, the notification operation and the subsequent It is possible to avoid a situation where the battery capacity required for the coping operation is not left.

Further, the second step is described by a program code for sampling the battery voltage Vbat a predetermined number of times during the fall period of the battery voltage Vbat to generate the measurement voltage signal 14a.

By providing such a step in the second step, the battery voltage Vbat is sampled a predetermined number of times during the fall period of the battery voltage Vbat to generate the measurement voltage signal 14a. The efficiency of the sampling process in a large range can be improved, and the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage Vbat is used for a long time using the battery voltage characteristics. This eliminates the need for a measurement step, and causes a gradual voltage change due to an abnormal value or a drop in ambient temperature that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21. Outliers can be eliminated.

Further, the efficiency of the sampling process is improved by sampling the battery voltage Vbat a predetermined number of times during the fall period of the battery voltage Vbat. Efficient and high-speed sampling of the battery voltage Vbat can be performed intensively within a range where the change of the voltage Vbat is large, so that the sampling time resolution can be improved, and the battery life measurement time can be improved. Can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the battery voltage Vbat can be sampled a predetermined number of times during the fall period of the battery voltage Vbat to improve the sampling time resolution, and this is unnecessary when the battery operation has just started and measurement is unnecessary. Battery voltage V
It is possible to avoid a situation where the bat measurement is repeated in a short cycle, and it is possible to avoid unnecessary consumption of the battery capacity and extend the battery life.

As a result, although it is determined that the notification should be sent to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage Vbat drop rapidly at the end of the battery life, the notification operation and the subsequent It is possible to avoid a situation where the battery capacity required for the coping operation is not left.

The third step is described by a program code for calculating the fall time of the battery voltage Vbat from the battery voltage Vbat measured in the second step.

Further, in the third step, the measured voltage signal 1 sampled immediately before the falling period of the battery voltage Vbat (Vbat3)
4a, the battery voltage Vba before the operating limit of the battery life
a 3A step of calculating t, and a 3B step of calculating the battery voltage Vbat during the falling period of the battery voltage Vbat based on the measured voltage signal 14a sampled during the falling period of the battery voltage Vbat that starts immediately after disconnection of the heavy load. Contains.

By providing the steps 3A and 3B, the battery voltage Vbat is sampled a predetermined number of times during the falling period of the battery voltage Vbat to generate the measurement voltage signal 14a, and the battery voltage Vbat is generated. Of the battery voltage Vbat before the operating limit of the battery life is sampled a predetermined number of times, and the measured voltage signal 14a
And the efficiency of the sampling process in a range where the change in the battery voltage Vbat is small can be achieved.
The battery voltage characteristic for the expected temperature / load model is stored in advance, and the step of measuring the battery voltage Vbat for a long time using the battery voltage characteristic can be omitted. It is possible to eliminate an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after the increase and an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like continues.

Further, the efficiency of the sampling process is improved by sampling the battery voltage Vbat a predetermined number of times during the fall period of the battery voltage Vbat. Efficient and high-speed sampling of the battery voltage Vbat can be performed intensively within a range where the change in the voltage Vbat is large, so that the sampling time resolution can be improved, and the battery life measurement time can be improved. Can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, during the fall period of the battery voltage Vbat, the battery voltage Vbat is sampled a predetermined number of times to generate the measurement voltage signal 14a, thereby improving the efficiency of the sampling process in a range where the change in the battery voltage Vbat is large, At the same time, the battery voltage Vbat before the operation limit of the battery life is sampled a predetermined number of times to generate the measured voltage signal 14a and the battery voltage Vba
It is possible to improve the efficiency of the sampling process in the range where the change in t is small, and the unnecessary battery voltage Vbat measurement is repeated in a short cycle at the time when the measurement is unnecessary just after the operation of the battery. The battery life can be prolonged by avoiding unnecessary consumption of battery capacity.

As a result, in spite of the judgment that the notification should be made to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage Vbat drop rapidly at the end of the battery life, the notification operation and the subsequent It is possible to avoid a situation where the battery capacity required for the coping operation is not left.

The fourth step is described by a program code for determining the end of the battery life based on the fall time of the battery voltage Vbat calculated in the third step to recognize the operation limit of the battery life.

As described above, according to the battery life monitoring method of the second embodiment, when the battery voltage Vbat drops (ΔVbat1, ΔVbat2) based on the physical properties measured to recognize the operation limit of the battery life. , ΔVbat3), the sampling period (Ts1, Ts2, Ts3, Ts4) of the battery voltage Vbat
Are gradually shortened (Ts1 → Ts2, Ts2 → Ts3, Ts3 → Ts4,
Ts1>Ts2>Ts3> Ts4) to measure the battery voltage Vbat and generate the measured voltage signal 14a. Therefore, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage characteristics are long using the battery voltage characteristics. Battery voltage Vbat over time
Is unnecessary, and a gradual voltage change caused by an abnormal value or a drop in ambient temperature occurring during a recovery period of battery physical properties (battery voltage) after a temporary increase in the load 21 can be eliminated. It becomes possible to eliminate continuous abnormal values.

Further, as compared with the case where the sampling is performed uniformly over the entire measurement time, the sampling of the battery voltage Vbat can be performed more intensively in a limited area, and the number of times of sampling can be reduced. Thus, the battery life measurement time can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, the number of times of sampling can be reduced, and a situation in which unnecessary measurement of the battery voltage Vbat is repeated in a short cycle at a time when measurement is unnecessary immediately after the start of operation of the battery can be avoided. Unnecessary consumption of battery capacity can be avoided to extend battery life.

As a result, although it is determined that a notification should be sent to the management center due to the battery voltage characteristics such that the battery electromotive force and the battery voltage Vbat drop rapidly at the end of the battery life, the notification operation and the subsequent Can be avoided.

[0240]

According to the present invention, the change in the battery electromotive force, which constitutes the change in the battery voltage together with the change in the internal resistance, is used as the change in the battery physical properties occurring at the end of the battery life. The battery voltage is sampled at a fixed sampling period during the battery voltage recovery period that starts immediately before the application of a large load and immediately after the large load is disconnected after the application of the large load as the battery voltage for recognizing the operation limit of the battery life. Since the battery voltage characteristic for the expected temperature / load model is stored in advance, a step of measuring the battery voltage over a long period of time using the battery voltage characteristic can be eliminated. And the calculated difference between the battery voltage immediately before the application of the large load and the battery voltage immediately after the application of the large load is 1
The recovery time of the battery voltage, which is the time required for the battery voltage to recover immediately after the application of a large load to / 2, is calculated, and the end of the battery life is determined. The calculated recovery time of the battery voltage is the reference time for recovery of the battery voltage. If the battery life exceeds the operating limit, the battery life is automatically recognized as being at the operating limit, and a battery exhaustion notification command is generated. Therefore, abnormal values that occur during the recovery period of battery properties (battery voltage) after a temporary increase in load And an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like can be eliminated.

The change in the battery electromotive force, which constitutes the change in the battery voltage together with the change in the internal resistance, is used as the change in the physical properties of the battery that occurs at the end of the battery life. Since the battery voltage is sampled at a fixed sampling period during the battery voltage recovery period that starts immediately after and the battery voltage is intensively measured, compared to the case where uniform sampling is performed over the entire measurement time,
High-efficiency sampling of battery voltage can be performed intensively only at key points, reducing the number of samplings, shortening battery life measurement time, and reducing battery capacity consumption As a result, the life of the battery can be extended. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, as the battery voltage for recognizing the operation limit of the battery life, the battery voltage is set at a constant sampling cycle during the recovery period of the battery voltage that starts immediately before the application of the large load and immediately after the separation of the large load after the application of the large load. Since the sampling is performed and the battery voltage is measured intensively, the number of times of sampling can be reduced, and a large load is applied up to half of the calculated difference between the battery voltage immediately before the large load is applied and the battery voltage immediately after the large load is applied. When the battery voltage recovery time, which is the time required for the battery voltage to recover immediately after, is calculated and the end of battery life is determined, and the calculated battery voltage recovery time exceeds the battery voltage recovery reference time Automatically recognizes that the battery life is at the operating limit and generates a dead battery notification command. Repeat will be able to avoid a situation would,
In addition, it is possible to avoid unnecessary consumption of the battery capacity and extend the life of the battery.

According to the invention described in claim 15, in addition to the effect described in any one of claims 1 to 14, the battery physical property for recognizing the operation limit of the battery life after a large load is applied. Since the battery properties (battery voltage) are measured during the recovery period, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage is measured over a long period of time using the battery voltage characteristics. Process can be eliminated, and abnormal values that occur during the recovery period of battery physical properties (battery voltage) after a temporary increase in load and abnormal values that cause gradual voltage changes due to a drop in ambient temperature, etc. Can be eliminated.

In addition, since the physical properties (battery voltage) of the battery after the application of a large load are measured during the recovery period, the sampling is limited to the key points and is more intensive than in the case where uniform sampling is performed over the entire measurement time. Sampling of battery physical properties can be performed, the number of times of sampling can be reduced, battery life measuring time can be reduced, battery capacity consumption can be reduced, and battery life can be prolonged. Become like

According to the sixteenth aspect of the invention, in addition to the effect of the fifteenth aspect, the battery properties for recognizing the operation limit of the battery life include a large value immediately before and after a large load is applied. During the recovery period of the battery properties (battery voltage) that starts immediately after disconnection of the load, the battery properties are sampled at a fixed sampling cycle and the battery properties can be measured intensively taking into account the effect of the temperature of the battery properties. Become. Further, the battery immediately after the application of the large load is reduced to half of the difference between the battery property immediately before the application of the large load and the battery property (the battery voltage) immediately after the application of the large load, which is calculated in consideration of the influence of the measurement temperature of the battery physical properties. The time required for the physical properties (battery voltage) to recover is calculated taking into account the effect of the measured temperature of the battery physical properties (battery voltage) in consideration of the effect of the measured temperature of the battery physical properties, and the end of the battery life is determined to calculate the calculated battery physical properties If the recovery time of (battery voltage) exceeds the reference time for recovery of battery properties (battery voltage) taking into account the effect of the measurement temperature selected according to the measurement temperature of battery properties, the battery life is at the operating limit. Automatically recognizes that there is a battery run out command and generates a battery voltage (temporary voltage) after a temporary increase in load. Battery properties of abnormal values with continuous changes The exclusion in accordance with the measured temperature it is possible to perform taking into account the effect of the measured temperature of the battery properties.

Further, when a large load is applied up to half of the difference between the battery properties immediately before the application of the large load and the battery properties (battery voltage) immediately after the application of the large load, calculated taking into account the influence of the measurement temperature of the battery properties. The time required for the battery properties (battery voltage) to recover immediately after recovery is calculated by taking into account the influence of the measured temperature of the battery properties (battery voltage) taking into account the effect of the measured temperature of the battery properties, and determining the end of the battery life. If the recovery time of the battery properties (battery voltage) exceeds the reference time for recovery of the battery properties (battery voltage) selected according to the measured temperature of the battery properties, the battery life is automatically recognized as the operating limit The battery run-out notification command is generated and the unnecessary battery voltage measurement is repeated in a short cycle at the time when measurement is not necessary just after starting operation of the battery. In avoidance It becomes so that, also, it is possible to achieve a prolongation of the battery life by avoiding consumption of unnecessary battery capacity.

That is, during the recovery period of the battery properties (battery voltage) which starts immediately before the application of a large load and immediately after the disconnection of the large load after the application of the large load, the battery properties are sampled at a constant sampling cycle to concentrate the battery properties. The result of the measurement,
The battery capacity required for the reporting operation and the following coping operation, despite the judgment that it should be reported to the management center due to the battery voltage characteristics such as the battery electromotive force and the battery voltage dropping rapidly at the end of battery life Can be avoided in consideration of the influence of the measured temperature of the physical properties of the battery.

According to the present invention, the change in the battery electromotive force, which constitutes the change in the battery voltage together with the change in the internal resistance, is used as the change in the battery properties occurring at the end of the battery life. During the power drop period, the battery electromotive force is sampled a predetermined number of times and a measurement voltage signal is generated to improve the efficiency of the sampling process in a range where the change in the battery electromotive force is large, and at the same time, before the operating limit of the battery life. The battery electromotive force is sampled a predetermined number of times to generate a measurement voltage signal, and the efficiency of the sampling process in a range where the change in the battery electromotive force is small can be improved. By storing the battery electromotive force characteristics, a process of measuring the battery electromotive force over a long period of time using the battery electromotive force characteristics can be eliminated. Therefore, an abnormal value that occurs during a recovery period of battery physical properties (battery voltage) after a temporary increase in load and an abnormal value in which a gradual voltage change due to a decrease in ambient temperature or the like can be eliminated. .

Further, the efficiency of the sampling process is improved by sampling the battery electromotive force a predetermined number of times during the fall period of the battery electromotive force, so that the battery is more uniformly sampled over the entire measurement time. Efficient and high-speed sampling of the battery electromotive force can be performed intensively limited to the range where the change of the electromotive force is large, the sampling time resolution can be improved, and the battery life measurement time can be improved. Can be shortened, the battery capacity consumption can be reduced, and the battery life can be prolonged. This makes it possible to reduce the battery capacity consumed by the device that executes the battery life monitoring method, reduce the battery capacity consumption, extend the battery life, and reduce the device cost. You can plan. Specifically, during a period in which the battery electromotive force falls, the battery electromotive force is sampled a predetermined number of times to generate a measurement voltage signal, and the efficiency of the sampling process in a range where the change in the battery electromotive force is large is improved. The battery electromotive force before the operation limit of the battery life is sampled a predetermined number of times and a measurement voltage signal is generated to improve the efficiency of the sampling process in a range where the change in the battery electromotive force is small. It is possible to avoid unnecessary battery electromotive force measurement being repeated in a short cycle at the time when measurement is not necessary just after the operation of the system has just started, and also to avoid unnecessary consumption of battery capacity and extend battery life. You can plan.

As a result, although it is determined that a notification should be made to the management center due to the battery electromotive force or the battery electromotive force characteristic such that the battery electromotive force drops at the end of the battery life, the notification operation and the It is possible to avoid a situation in which the battery capacity required for the subsequent coping operation is not left.

According to the twenty-eighth aspect of the present invention, in addition to the effects of the twenty-sixth and twenty-seventh aspects, the battery properties before the operating limit of the battery life are used as the battery properties for recognizing the operating limit of the battery life. (Battery voltage) Since the battery properties are measured during the fall period, the battery voltage characteristics for the expected temperature / load model are stored in advance, and the battery voltage is measured over a long period of time using the battery voltage characteristics. The process can be eliminated, eliminating abnormal values that occur during the recovery period of battery physical properties (battery voltage) after a temporary increase in load and abnormal values that have gradual voltage changes due to a drop in ambient temperature, etc. Will be able to

In order to measure the battery physical property for recognizing the operational limit of the battery life, the battery physical property (battery voltage) before the operational limit of the battery life is measured during the fall period. Compared to sampling, battery properties can be intensively sampled only at key points, the number of samplings can be reduced, and the battery life measurement time can be shortened. It is possible to reduce battery capacity consumption and extend battery life.

That is, as a physical property of the battery for recognizing the operational limit of the battery life, as a result of measuring the physical property of the battery during the fall period of the battery physical property (battery voltage) before the operational limit of the battery life,
The battery capacity required for the reporting operation and the following coping operation, despite the judgment that it should be reported to the management center due to the battery voltage characteristics such as the battery electromotive force and the battery voltage dropping rapidly at the end of battery life Can be avoided.

According to the twenty-ninth aspect, the same effect as that of the twenty-eighth aspect can be obtained.

According to the thirty-second aspect of the present invention, in addition to the effects of the twenty-eighth or the twenty-ninth aspect, the operation of the battery life as a battery physical property for recognizing the operation limit of the battery life is performed. Since the battery physical properties during the fall period of the battery physical properties (battery voltage) before the limit are measured, the battery voltage characteristics with respect to the expected temperature / load model are stored in advance, and the battery voltage characteristics are used for a long time using the battery voltage characteristics. The process of measuring battery voltage can be eliminated, and abnormal values that occur during the recovery period of battery physical properties (battery voltage) after a temporary increase in load and gradual voltage changes caused by a drop in ambient temperature, etc. Outliers can be eliminated.

In order to measure the battery physical properties during the fall period of the battery physical properties (battery voltage) before the operational limit of the battery life as a battery physical property for recognizing the operational limit of the battery life, the battery physical property is uniform over the entire measurement time. Compared to the case where sampling is performed, it is possible to concentrate on the physical properties of the battery limited to key points, it is possible to reduce the number of sampling times, it is possible to shorten the battery life measurement time, It is possible to reduce battery capacity consumption and extend battery life. This makes it possible to reduce the battery capacity consumed by the automatic notification device that executes the battery life monitoring method, reduce the battery capacity consumption and extend the life of the battery, and the automatic notification device The cost can be reduced. Specifically, the number of samplings can be reduced, and unnecessary battery voltage measurement can be avoided in a short cycle at the time when measurement is not necessary just after starting operation of the battery. The battery life can be extended by avoiding excessive consumption of battery capacity.

That is, as a physical property of the battery for recognizing the operational limit of the battery life, as a result of measuring the physical property of the battery during the fall period of the physical property (battery voltage) before the operational limit of the battery life,
Battery capacity required for notification and subsequent actions, despite the judgment that notification should be made to the management center due to battery voltage characteristics such as rapid battery electromotive force and battery voltage drop at the end of battery life It is possible to reliably notify the management center of the operational limit of the battery life to the management center via a communication line by avoiding a situation in which no battery remains.

[Brief description of the drawings]

FIG. 1 is a functional block diagram for explaining operations of a battery life monitoring device and an automatic notification device of the present invention.

FIG. 2 is a battery voltage fluctuation diagram for explaining a battery life monitoring method executed by the battery life monitoring device of the first embodiment.

FIG. 3 is a battery voltage fluctuation diagram for explaining a battery life monitoring method executed by a battery life monitoring device of a second embodiment.

FIG. 4 is a battery voltage fluctuation diagram for explaining a battery life monitoring method of the first related art.

FIG. 5 is a battery voltage fluctuation diagram for explaining a battery life monitoring method according to a second related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Battery life monitoring device 12 ... Life determination means 12a ... Sampling signal 12b ... Battery exhaustion notification command 14 ... Voltage measurement means 14a ... Measurement voltage signal 16 ... Time measurement means 16a ... Time signal 17 ... Memory 18 ... Sampling reference time generation means 18a ... Sampling reference time signal 19 ... Notification means 19a ... Notification signal 20 ... Battery 21 ... Load 22 ... Voltage regulator 30 ... Automatic notification device VD ... Power supply voltage

Claims (30)

[Claims] 1. A battery life monitoring method for monitoring battery physical properties and recognizing an operational limit of battery life, wherein the battery physical properties for recognizing the operational limit of battery life is determined during a recovery period of battery physical properties in a predetermined period. A second step of measuring the physical properties of the battery to generate a measurement voltage signal; a third step of calculating a recovery time of the physical properties of the battery from the measured physical properties of the battery; and a battery life based on the calculated recovery time of the physical properties of the battery. And a fourth step of making a final determination of the above to recognize the operation limit of the battery life. 2. The method according to claim 1, wherein the second step includes a step of measuring the physical properties of the battery during a recovery period of the physical properties of the battery after the application of a large load as the physical properties of the battery for recognizing an operational limit of the battery life. The battery life monitoring method according to claim 1. 3. The method according to claim 1, further comprising, prior to the execution of the second step, a first step of measuring a battery voltage immediately before a large load is applied as battery physical properties for recognizing an operation limit of the battery life. Item 3. A battery life monitoring method according to Item 2. 4. The second step includes connecting a large load to the battery for a predetermined time, a second B step of disconnecting the large load from the battery, and recovering battery physical properties starting immediately after the disconnection of the large load. The battery life monitoring method according to claim 2, further comprising: a second C step of measuring physical properties of the battery during the period. 5. The method according to claim 2, wherein the step (c) includes a step of generating the measurement voltage signal by sampling the physical properties of the battery at a constant sampling period during a recovery period of the physical properties of the battery that starts immediately after the disconnection of the heavy load. The battery life monitoring method according to claim 4, wherein: 6. The method according to claim 6, wherein the step (C) includes a step of sampling the physical properties of the battery a predetermined number of times during a recovery period of the physical properties of the battery, which is started immediately after disconnection of the heavy load, and generating the measurement voltage signal. The battery life monitoring method according to claim 4 or 5, wherein 7. The first C step includes, prior to the execution of the second step, generating a measurement voltage signal by sampling the battery properties immediately before the application of the large load and sampling the battery properties at a constant sampling cycle. The battery life monitoring method according to any one of claims 3 to 6, comprising a step. 8. The method according to claim 1, wherein the step (c) includes, prior to the execution of the step (b), sampling the physical properties of the battery immediately before the application of the large load a predetermined number of times to generate the measurement voltage signal. The battery life monitoring method according to any one of claims 3 to 7. 9. The third step of: calculating a battery property immediately before a large load is applied based on the measured voltage signal sampled immediately before the large load is applied.
A step, a 3B step of calculating the battery properties immediately after the application of the large load based on the measured voltage signal sampled during the recovery period of the battery properties starting immediately after the disconnection of the large load, and a 3B step. A third C step of calculating a difference between the battery physical property immediately before the large load application and the battery physical property immediately after the large load application calculated in the third B step; and a battery physical property just before the large load application calculated in the third C step. A third time in which the time required until the physical properties of the battery immediately after the application of the heavy load is restored to half of the difference from the physical properties of the battery immediately after the application of the heavy load is counted as the recovery time of the physical properties of the battery
The battery life monitoring method according to claim 8, further comprising a step D. 10. The fourth step is a step of selecting a recovery reference time for battery physical properties, and comparing the recovery time of the battery physical properties calculated in the third step and the recovery reference time of the battery physical properties. Step 4B: determining the end of the battery life, and automatically determining that the battery life is at the operating limit when the recovery time of the battery physical property calculated in the step 3D exceeds the recovery reference time of the battery physical property. The battery life monitoring method according to claim 9, further comprising a 4C step of generating a battery exhaustion notification command by recognizing the battery life. 11. The battery life monitoring method according to claim 10, wherein the fourth A step includes a step of selecting a battery physical property recovery reference time according to the measured battery physical property temperature. 12. The method according to claim 10, wherein the fourth step (C) includes a step of generating the dead battery notification command after the battery physical properties are sufficiently recovered.
2. The battery life monitoring method according to 1. 13. The battery life monitoring method according to claim 1, wherein a battery voltage is used as the physical property of the battery. 14. The battery life monitoring method according to claim 1, wherein a battery electromotive force is used as the battery physical property. 15. A battery life monitoring device that executes the battery life monitoring method, comprising: a sampling reference time generating unit that generates a sampling reference time signal for setting the sampling period; and a time measurement that generates a time signal. Means for generating a sampling signal for instructing the measurement of the battery physical property immediately before the application of the large load based on the sampling reference time signal, and starting the physical properties of the battery starting immediately after disconnection of the large load based on the sampling reference time signal. During the recovery period, a sampling signal for instructing the measurement of the physical properties of the battery is generated, and the difference between the physical properties of the battery immediately before the application of the large load and the physical properties of the battery immediately after the application of the large load is calculated. 1 of difference between battery physical properties and battery physical properties immediately after heavy load application
/ 2, the time required for the battery properties to recover immediately after the application of the large load is calculated based on the time signal, the recovery reference time for the battery properties is selected, and the calculated recovery time of the battery properties and the battery The battery life is compared with the reference time for recovery of the physical properties, and the end of the battery life is determined.If the calculated recovery time for the battery properties exceeds the recovery reference time for the battery properties, it is automatically determined that the battery life is at the operating limit. A battery life determining means for generating the measured battery signal according to the sampling signal and a voltage measuring means for generating the measured voltage signal in accordance with the sampling signal. A battery life monitoring device that executes the battery life monitoring method according to any one of claims 1 to 14. 16. A memory for storing data relating to a battery physical property recovery reference time according to a measured battery physical property temperature, wherein the voltage measuring means is configured to store the battery physical property data according to the measured battery physical property temperature. Time data is selected and read out, and when the calculated recovery time of the battery properties exceeds the recovery reference time, the battery life is automatically recognized as being at the operating limit and the battery exhaustion notification command is generated. The battery life monitoring device according to claim 15, wherein the battery life monitoring device is configured. 17. A battery life monitoring method for monitoring battery properties and recognizing an operation limit of battery life, comprising the steps of: A second step of gradually shortening the sampling cycle of the battery properties and measuring the battery properties to generate a measurement voltage signal; a third step of calculating the fall time of the battery properties from the measured battery properties; And a fourth step of making a final determination of the battery life based on the determined fall time of the physical properties of the battery and recognizing an operation limit of the battery life. 18. The method according to claim 18, wherein when the measured value of the physical properties of the battery indicates an operational limit of the battery life, the sampling cycle is shortened according to a period determined in advance in accordance with battery characteristics. 18. The battery life monitoring method according to claim 17, further comprising a step of measuring battery properties and generating the measured voltage signal. 19. The method according to claim 19, wherein, when the measured value of the physical properties of the battery indicates a value before the operating limit of the battery life, the sampling cycle is extended by a predetermined period according to the battery characteristics. 19. The battery life monitoring method according to claim 17, further comprising a step of measuring physical properties to generate the measured voltage signal. 20. Prior to execution of the second step, a first step of measuring battery properties (battery voltage) before the operation limit of the battery life as a battery property for recognizing the operation limit of the battery life is provided. 18. The method according to claim 18, wherein:
10. The battery life monitoring method according to 9. 21. The method according to claim 21, wherein the step of generating the measured voltage signal is performed by sampling the physical properties of the battery at a sampling cycle that is varied according to a degree of the physical properties of the battery during the physical property dropping period. The battery life monitoring method according to claim 20, comprising: 22. The method according to claim 20, wherein the second step includes a step of sampling the physical property of the battery a predetermined number of times during the fall period of the physical property of the battery to generate the measured voltage signal. The battery life monitoring method described. 23. The first step, prior to the execution of the second step, generates the measurement voltage signal by sampling the physical properties of the battery before the operating limit of the battery life at a constant sampling cycle. 23. The battery life monitoring method according to claim 19, further comprising the step of: 24. The method according to claim 24, wherein the first step includes, prior to the execution of the second step, sampling the physical properties of the battery before the operating limit of the battery life a predetermined number of times to generate the measurement voltage signal. The battery life monitoring method according to any one of claims 19 to 23, wherein: 25. A third step of calculating battery properties before an operation limit of battery life based on the measured voltage signal sampled immediately before a drop period of battery properties, and a step of immediately after disconnection of a heavy load. 25. The battery life monitoring method according to claim 24, further comprising: 3B calculating a battery physical property during the battery physical property falling period based on the measured voltage signal sampled during the battery physical property falling period starting. 26. The battery life monitoring method according to claim 17, wherein a battery voltage is used as the physical property of the battery. 27. The battery life monitoring method according to claim 17, wherein a battery electromotive force is used as the battery physical property. 28. A battery life monitoring device for executing the battery life monitoring method, comprising: a sampling reference time generating means for generating a sampling reference time signal for setting the sampling period; and a time measurement for generating a time signal. Means for generating a sampling signal for instructing measurement of the battery physical property before the operation limit of the battery life based on the sampling reference time signal, and generating the sampling signal during the fall period of the battery physical property based on the sampling reference time signal. A sampling signal for instructing measurement of battery physical properties is generated, a final stage of battery life is determined based on the measured voltage signal, and when the battery life is automatically recognized as being at an operation limit, the battery exhaustion notification command is issued. And a battery life measuring means for measuring battery properties according to the sampling signal to generate the measured voltage signal. That the voltage measuring means and the battery life monitoring system for performing the battery life monitoring method according to claim 26 or 27, characterized in that it has a. 29. A memory for storing data relating to a sampling period predetermined according to battery characteristics, wherein the voltage measuring means selects and reads out the sampling period data according to the battery characteristics, and calculates the data. 29. The battery life monitoring according to claim 28, wherein the battery life monitoring command is generated when the battery life dropping time automatically recognizes that the battery life is the operating limit. apparatus. 30. An automatic notification device, connected to a management center via a communication line, for controlling the battery life monitoring device, automatically recognizing that the battery life is at an operation limit, and reporting the battery exhaustion, 3. The battery life monitoring device, further comprising: a notifying unit connected to a management center via a communication line and configured to generate a notification signal for notifying the battery exhaustion in response to the battery exhaustion notification command.
An automatic notification device using the battery life monitoring device according to any one of claims 8 and 29. [0000]