CN109001645B - Elevator battery detection method, device, equipment and storage medium - Google Patents
Elevator battery detection method, device, equipment and storage medium Download PDFInfo
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- CN109001645B CN109001645B CN201811020651.1A CN201811020651A CN109001645B CN 109001645 B CN109001645 B CN 109001645B CN 201811020651 A CN201811020651 A CN 201811020651A CN 109001645 B CN109001645 B CN 109001645B
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Abstract
The embodiment of the application discloses a method, a device, equipment and a storage medium for detecting an elevator battery, wherein the method comprises the following steps: acquiring the current capacity of an elevator battery; determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection; determining the remaining life of the elevator battery according to the battery decrement. According to the embodiment of the application, the battery attenuation can be obtained according to the current capacity and the last detected capacity, the remaining life of the elevator battery can be estimated according to the battery attenuation, and the estimation accuracy of the elevator battery life can be improved.
Description
Technical Field
The embodiment of the application relates to the technical field of elevators, in particular to an elevator battery detection method, device, equipment and storage medium.
Background
With the continuous development of society and the progress of science and technology, the living standard of people is gradually improved, and the scenes of the application of the elevator are very wide. If the elevator runs in a sudden power failure situation, a user can be trapped in the elevator, and in order to cope with the power failure situation, the elevator is generally provided with an elevator system emergency device.
The elevator system emergency device is connected in series between the commercial power interface and the elevator system interface, and comprises an energy storage device which generally adopts a lead-acid battery as the energy storage device. The method for monitoring the battery life of the energy storage device is to estimate the battery life through periodic capacity detection, namely a capacity detection life estimation mechanism with fixed time (usually 3 months) as a detection period is set in a system, but the method has hysteresis for an elevator system, and cannot detect whether the capacity of the battery meets the system requirement in advance, so that the reliability of the system is influenced.
Disclosure of Invention
The embodiment of the application provides a method, a device, equipment and a storage medium for detecting an elevator battery, which can improve the accuracy of estimating the service life of the elevator battery.
In a first aspect, an embodiment of the present application provides an elevator battery detection method, including:
acquiring the current capacity of an elevator battery;
determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection;
determining the remaining life of the elevator battery according to the battery decrement.
Further, before determining the battery decrement according to the current capacity and the reference capacity, the method further includes:
detecting whether the voltage change information of the elevator battery meets a preset stable condition or not;
and if the voltage change information meets the preset stable condition, executing the step of acquiring the current capacity of the elevator battery.
Further, the detecting whether the voltage change information of the elevator battery meets a preset stable condition includes:
detecting whether the voltage change slope of the elevator battery is within a preset range;
and if the voltage change slope is within the preset range, determining that the voltage change information meets the preset stable condition.
Further, determining a battery decrement from the current capacity and a reference capacity includes:
determining an acquisition time interval according to the acquisition time of the current capacity and the acquisition time of the reference capacity;
determining a capacity attenuation amount according to the difference value between the current capacity and the reference capacity;
and determining the battery attenuation according to the capacity attenuation and the acquisition time interval.
Further, determining the remaining life of the elevator battery from the amount of battery degradation comprises:
acquiring system required capacity; wherein the system demand capacity is a capacity required for operation of the elevator system;
determining an attenuatable remaining capacity of the elevator battery according to the current capacity of the elevator battery and the system demand capacity;
determining the remaining life of the elevator battery according to the decayable remaining capacity and the battery decay amount.
Further, after determining the remaining life of the elevator battery according to the battery attenuation, the method further comprises the following steps:
detecting whether the remaining life is less than the early warning life of the battery;
and if the residual life is lower than the early warning life, reporting the early warning.
Further, obtaining the current capacity of the elevator battery comprises:
acquiring the current electric quantity and the current voltage of the elevator battery;
and determining the current capacity of the elevator battery according to the current electric quantity and the current voltage.
Further, before obtaining the current capacity of the elevator battery, the method further includes:
detecting whether the elevator battery is in a power saturation state;
and if the elevator battery is in a state of electric quantity saturation, executing the operation of acquiring the current capacity of the elevator battery.
Further, before detecting whether the elevator battery is in a state of capacity saturation, the method further comprises:
collecting the temperature of the elevator battery when the elevator battery is charged;
determining a self-discharge rate of the elevator battery according to the temperature;
and determining self-discharge loss electric quantity according to the self-discharge rate, and performing complementary charging on the elevator battery according to the self-discharge loss electric quantity until the elevator battery enters an electric quantity saturation state.
Further, when the elevator battery is charged, before the temperature of the elevator battery is collected, the method further comprises:
acquiring the initial capacity of the elevator battery, and judging whether the initial capacity is smaller than the system required capacity;
if the initial capacity is smaller than the system required capacity, reporting and early warning;
if the initial capacity of the elevator battery is larger than the system required capacity, triggering a battery self-test command;
and controlling the elevator battery to enter a charging state according to the battery self-checking command.
In a second aspect, an embodiment of the present application further provides an elevator battery detection device, including:
the capacity acquisition module is used for acquiring the current capacity of the elevator battery;
the attenuation module is used for determining the battery attenuation according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained by the last detection;
and the battery life module is used for determining the residual life of the elevator battery according to the battery attenuation.
In a third aspect, an embodiment of the present application further provides an elevator battery detection method, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the elevator battery detection method according to any embodiment of the present application.
In a fourth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements an elevator battery detection method according to any embodiment of the present application.
The embodiment of the application discloses an elevator battery detection scheme, which comprises the steps of obtaining the current capacity of an elevator battery; determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection; determining the remaining life of the elevator battery according to the battery decrement. According to the embodiment of the application, the battery attenuation can be obtained according to the current capacity and the last detected capacity, the remaining life of the elevator battery can be estimated according to the battery attenuation, the estimation accuracy of the elevator battery life can be improved, and the stability of an elevator system is further improved.
Drawings
Fig. 1 is a flowchart of an elevator battery detection method provided in an embodiment of the present application;
fig. 2 is a schematic block diagram of an elevator emergency system provided in an embodiment of the present application;
fig. 3 is a flow chart of another elevator battery detection method provided by the embodiment of the application;
fig. 4 is a flow chart of another elevator battery detection method provided by the embodiment of the application;
fig. 5 is a flow chart of another elevator battery detection method provided by the embodiment of the application;
fig. 6 is a flow chart of another elevator battery detection method provided by the embodiment of the application;
fig. 7 is a flowchart of another elevator battery detection method provided in the embodiment of the present application;
fig. 8 is a flow chart of another elevator battery detection method provided by the embodiment of the application;
fig. 9 is a schematic structural diagram of an elevator battery detection device provided in an embodiment of the present application;
fig. 10 is a schematic diagram of a hardware structure of an elevator battery detection apparatus in the fifth embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
Fig. 1 is a flowchart of an elevator battery detection method provided in an embodiment of the present application, which may be performed by an elevator battery detection apparatus, where the apparatus may be implemented by software and/or hardware, and may be generally integrated on an elevator battery detection device of an elevator emergency system. Fig. 2 is a schematic diagram of a module of an elevator emergency system, and as shown in fig. 2, the elevator emergency system further includes an emergency device and an elevator battery, and the emergency device can control the elevator battery to supply power to the elevator system when the commercial power is abnormal, so that the elevator system can obtain emergency power supply, and the problem of elevator failure is avoided. The elevator battery detection method comprises the following steps:
and S110, acquiring the current capacity of the elevator battery.
The current capacity of the elevator battery is the capacity of the elevator battery obtained at the current time. The capacity is one of indexes for measuring the performance of the battery, and the capacity represents the electric quantity which can be discharged by the battery under a certain discharge rate, temperature or voltage. An elevator battery generally has an initial capacity after being shipped from a factory, but with the long-term use of the elevator battery, the performance of the battery gradually decays, so that the capacity also decays. Therefore, the batteries have corresponding service lives, and the capacity of the batteries exceeding the specified service life is generally low, so that the normal emergency power supply requirement of the elevator system cannot be met. By obtaining the current capacity of the elevator battery, the amount of attenuation of the battery can be further calculated.
The capacity conforms to the formula Q ═ C × V, where Q is the electric quantity of the battery, V is the voltage of the battery, and C is the capacity of the battery, and the capacity can be calculated according to the voltage and the electric quantity.
Alternatively, obtaining the current capacity of the elevator battery may be performed by:
acquiring the current electric quantity and the current voltage of the elevator battery; and determining the current capacity of the elevator battery according to the current electric quantity and the current voltage.
The current electric quantity of the elevator battery can be detected through a coulometer of elevator battery detection equipment, the coulometer is a programmable digital ammeter, and the electric quantity of the elevator battery can be output after the coulometer is connected with the elevator battery and the input signal is subjected to operation Processing through a CPU (Central Processing Unit) of the coulometer. The current voltage of the elevator battery may be detected by a voltage detection unit. After the current electric quantity and the current voltage of the elevator battery are obtained, the current capacity of the elevator battery can be determined according to the current electric quantity and the current voltage: cinitial is Qinitial/Vinitial, where Cinitial is the current capacity, Qinitial is the current charge, and Vinitial is the current voltage.
And S111, determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection.
The last detection is that when the elevator battery is detected by last elevator battery detection, the elevator battery can be detected by setting a detection period. For example, it may be set that the elevator battery is detected every three months, and the reference capacity is the battery capacity of the elevator battery detected three months ago. The reference capacity may be stored in a battery capacity table in a memory module of the elevator battery detection apparatus, and the reference capacity may be obtained by table lookup. The battery attenuation is the attenuation of the battery between the current detection of the elevator battery and the last detection of the elevator battery, and the detection period between the two detections can be set according to the specification of the battery, which is not limited herein. The reference capacity can be calculated according to the voltage and the electric quantity acquired in the last detection.
The current capacity acquired this time is stored in the storage module of the elevator battery detection device, and when the next elevator battery detection is performed, the current capacity acquired this time is used as the reference capacity to detect the next battery attenuation amount.
And S112, determining the remaining life of the elevator battery according to the battery attenuation.
The battery attenuation amount calculated according to the current capacity and the reference capacity can estimate the capacity change of the battery in the residual use stage, and further can determine the residual service life of the elevator battery according to the capacity change.
The attenuation of the battery is not necessarily uniform, and may be different according to different application environments, for example, the attenuation of the battery may be different in different seasons. Therefore, the battery attenuation is determined according to the current capacity and the battery capacity obtained by the last detection, namely, the battery attenuation is calculated once when the elevator battery is detected each time, the remaining life of the battery is estimated according to the latest battery attenuation, the remaining life of the battery determined according to the latest battery attenuation is more accurate, and the stability of the elevator system is further improved.
Optionally, after determining the remaining life of the elevator battery according to the battery attenuation amount, the method further includes:
detecting whether the remaining life is less than the early warning life of the battery; and if the residual life is lower than the early warning life, reporting the early warning.
The early warning service life can be a preset dangerous service life, namely the emergency requirement of the elevator system can not be normally supported, and when the remaining service life of the elevator battery is shorter than the early warning service life, the early warning needs to be reported. The reporting early warning can be to send the early warning information that the elevator battery needs to be replaced to the background management terminal, so that the elevator manager can replace the elevator battery as soon as possible.
If the remaining service life is longer than the safe service life, the state of the battery can be reported to a background management end, the remaining service life of the elevator battery is longer than the safe service life, and the normal operation of the elevator system can be supported. Optionally, if the remaining life is shorter than the safe life and longer than the early warning life, the state of the elevator battery can be reported to the background server as the information about the impending early warning, so that the manager can know that the life of the elevator battery is approaching to the dangerous life, and can embody the preparation of needing to replace the battery.
The early warning life of the battery can be set according to practical application, and is not limited herein.
The method comprises the steps of obtaining the current capacity of an elevator battery; determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection; determining the remaining life of the elevator battery according to the battery decrement. According to the embodiment of the application, the battery attenuation can be obtained according to the current capacity and the last detected capacity, the remaining life of the elevator battery can be estimated according to the battery attenuation, the estimation accuracy of the elevator battery life can be improved, and the stability of an elevator system is further improved.
Fig. 3 is a flowchart of another elevator battery detection method provided by the present application, on the basis of the foregoing embodiment, optionally, as shown in fig. 3, the method includes:
and S120, detecting whether the voltage change information of the elevator battery meets a preset stable condition.
And S121, if the voltage change information meets the preset stable condition, acquiring the current capacity of the elevator battery, and determining the battery attenuation amount according to the current capacity and the reference capacity, wherein the reference capacity is the battery capacity acquired in the last detection.
When the battery is in different states, the voltage change information of the battery is different. For example, the voltage of the battery may exhibit a rising change if the battery is in a charged state, and may exhibit a falling change if the battery is in a discharged state. When the voltage of the battery is changed greatly, the acquired capacity of the elevator battery has a large error, and the battery attenuation cannot be accurately determined.
By judging whether the voltage change information of the elevator battery meets the preset stable condition or not, the battery attenuation can be determined according to the current capacity and the reference capacity when the voltage of the elevator battery is in a stable state, the accuracy of the current capacity of the elevator battery can be improved, and the accuracy of the determined battery attenuation is further improved.
And if the voltage change information does not accord with the preset stable condition, continuing waiting until the voltage change information is detected to accord with the preset stable condition.
Optionally, the detecting whether the voltage change information of the elevator battery meets a preset stability condition may be implemented by:
detecting whether the voltage change slope of the elevator battery is within a preset range; and if the voltage change slope is within the preset range, determining that the voltage change information meets the preset stable condition.
The voltage change slope of the elevator battery can be determined by collecting the voltages of the elevator battery corresponding to at least two time points. The preset range may be a range preset by the system to indicate voltage stabilization. Illustratively, the voltage drop slope of the elevator battery may be detected, the preset range may be that the voltage drop is less than 1mV in 2 minutes, if the elevator drop slope of the battery indicates that the voltage drop is less than 1mV in two minutes, it indicates that the voltage of the battery is in a stable state, and thus the current capacity of the elevator battery may be obtained, and the battery decrement may be determined according to the current capacity and the reference capacity.
And S122, determining the remaining life of the elevator battery according to the battery attenuation.
The method and the device have the advantages that whether the voltage change information of the elevator battery meets the preset stable condition or not is detected; and if the voltage change information accords with the preset stable condition, executing the step of obtaining the current capacity of the elevator battery, obtaining the current capacity of the elevator battery when the voltage of the elevator battery is in a stable state, and improving the accuracy of the determined battery attenuation so as to improve the accuracy of the estimated residual life of the elevator battery.
Fig. 4 is a flowchart of another elevator battery detection method provided by the present application, on the basis of the above embodiment, the step of determining the battery decrement according to the current capacity and the reference capacity is optimized, and optionally, as shown in fig. 4, the method includes:
and S130, acquiring the current capacity of the elevator battery.
Reference may be made to the above description for specific embodiments, which are not repeated herein.
S131, determining an acquisition time interval according to the acquisition time of the current capacity and the acquisition time of the reference capacity; wherein the reference capacity is the battery capacity obtained in the last detection.
And S132, determining the capacity attenuation amount according to the difference value between the current capacity and the reference capacity.
And S133, determining the battery attenuation according to the capacity attenuation and the acquisition time interval.
The obtaining time interval is the time interval between two times of detection of the elevator battery, and the capacity attenuation amount of the battery in the obtaining time interval can be determined according to the obtaining time interval and the difference value of the battery capacity obtained twice.
Optionally, at least one decay cycle is included in the acquisition time interval, and accordingly, the battery decay amount of the elevator battery in the decay cycle can be determined according to the capacity decay amount and the number of the decay cycles included in the acquisition time interval. Illustratively, the acquisition time interval is three months, the decay period is one month, and the battery decay amount can be determined by the following formula: Δ C ═ C (last-Cinitial)/m, where Δ C is the monthly decrement of the elevator battery, last is the reference capacity acquired three months ago by the test, Cinitial is the current capacity, and m is the number of months included in the acquisition time interval. The specific decay period and the acquisition time interval may be set according to practical applications, and are not limited herein. By setting the appropriate decay period and acquisition time interval, the accuracy of the determined amount of battery decay may be further improved.
And S134, determining the remaining life of the elevator battery according to the battery attenuation.
Reference may be made to the above description for specific embodiments, which are not repeated herein.
Fig. 5 is a flowchart of another elevator battery detection method provided by the present application, on the basis of the above embodiment, the step of determining the remaining life of the elevator battery according to the battery decrement is optimized, and optionally, as shown in fig. 5, the method includes:
and S140, acquiring the current capacity of the elevator battery.
And S141, determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection.
For the above-mentioned specific implementation of the operations, reference may be made to the above-mentioned related description, and further description is omitted here.
S143, acquiring system required capacity; wherein the system demand capacity is a capacity required for operation of the elevator system.
S144, determining the decayable residual capacity of the elevator battery according to the current capacity of the elevator battery and the system required capacity.
The system capacity requirement can be obtained by looking up a battery capacity table prestored in the system, and the system capacity requirement can be the capacity required by emergency power supply of an elevator battery when the elevator system is in emergency power supply, namely the lowest capacity required by the elevator system; if the system capacity is lower than the lowest system capacity, the elevator battery can not support the emergency electricity of the elevator system, and the elevator battery needs to be replaced.
The difference value between the current capacity of the elevator battery and the system required capacity, namely the decayable residual capacity of the elevator battery, can determine the amount of the battery capacity of the elevator which can be further decayed according to the decayable residual capacity, and further combines the battery decay amount determined by the operation and the decayable residual capacity.
And S145, determining the remaining life of the elevator battery according to the decayable remaining capacity and the battery decay amount.
Wherein a quotient of the decayable remaining capacity and the battery decay amount may be used to determine a remaining life of the elevator battery. The determination can be made according to the following equation: k ═ C (Cinitial-rated)/[ delta ] C, where Δ C is the monthly delta of the elevator battery, Cinitial is the current capacity, rated is the system required capacity, and K is the remaining life of the elevator battery.
The method comprises the steps of acquiring system required capacity; the system demand capacity is the capacity required by the operation of the elevator system, and the decayable residual capacity of the elevator battery is determined according to the current capacity of the elevator battery and the system demand capacity, so that the accuracy of the life estimation of the elevator battery can be improved, and the stability of the elevator system is further improved.
Fig. 6 is a flowchart of another elevator battery detection method provided by the present application, on the basis of the foregoing embodiment, optionally, as shown in fig. 6, the method includes:
and S150, detecting whether the elevator battery is in an electric quantity saturation state.
And S151, if the elevator battery is in an electric quantity saturation state, acquiring the current capacity of the elevator battery.
If the capacity of the battery is obtained by measuring the electric quantity of the battery and calculating according to the electric quantity of the battery, the accurate capacity of the battery can be obtained only by determining according to the electric quantity of the battery in an electric quantity saturation state. Therefore, by detecting whether the battery elevator is in the electric quantity saturation state or not, and acquiring the current capacity of the elevator battery in the electric quantity saturation state, the more accurate current capacity of the elevator battery can be obtained.
The electric quantity saturation state is a state in which the battery is charged to a saturation state, and whether the battery reaches the electric quantity saturation state can be determined by detecting the charging voltage and the charging current of the battery.
Optionally, if the elevator battery is in a state of electric quantity saturation, detecting whether the voltage change information of the elevator battery meets a preset stable condition, and if the voltage change information of the elevator battery meets the preset stable condition, acquiring the current capacity of the elevator battery, so as to further improve the accuracy of the determined current capacity of the elevator battery.
And S152, determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection.
And S153, determining the remaining life of the elevator battery according to the battery attenuation.
For the above-mentioned specific implementation of the operations, reference may be made to the above-mentioned related description, and further description is omitted here.
Fig. 7 is a flowchart of another elevator battery detection method provided by the present application, on the basis of the above embodiment, optionally, as shown in fig. 7, the method includes:
and S160, collecting the temperature of the elevator battery when the elevator battery is charged.
If the elevator battery is in a state of electric quantity saturation, the elevator battery generally needs to be charged so as to enable the electric quantity of the battery to reach saturation. When the elevator battery is charged, a part of electric energy can be converted into heat energy, so that the elevator battery can generate heat when the battery is charged. When the elevator battery is in different temperature states, the elevator battery can have different self-discharge conditions.
The existing emergency device of an elevator system performs integral operation on battery capacity by means of an MCU (micro controller Unit) of the elevator, the integral operation of the MCU has errors due to low current caused by partial power consumption caused by self-discharge of the battery, the calculated battery capacity also has errors, and the errors are accumulated for a long time to aggravate the error degree of calculation of the battery capacity. For the batteries which are not aged but used for a period of time, due to inaccurate integral operation of the battery capacity, the situation that the power supply time of the elevator battery is insufficient on a customer site can be caused, the battery capacity cannot be predicted accurately in advance and a replacement coping measure is made, so that trouble is brought to the use of the customer, and the customer experience is seriously influenced.
The temperature of the elevator battery can be a constant temperature maintained by the elevator battery during charging, and generally, when the battery is charged, the temperature of the battery gradually rises until a constant temperature is maintained.
And S161, determining the self-discharge rate of the elevator battery according to the temperature.
Wherein, when the battery is at different temperatures, the battery is corresponding to different selfThe discharge rate. The self-discharge rate of the battery can be data preset by a system, the self-discharge rate and the temperature form a certain functional relation, and the self-discharge rate of the elevator battery can be determined according to the temperature when the temperature of the elevator battery in a charging state is detected. Illustratively, when the temperature is a standard temperature, the standard self-discharge rate δ is (Ca-Cb)/t, where Ca is the factory battery capacity, Cb is the battery capacity after placement, and t is the placement time; self discharge rate for different temperatures
Wherein T is the detected temperature of the elevator battery, T0The standard temperature may be 25 ℃ deltaTIs the self-discharge rate.
And S162, determining self-discharge loss electric quantity according to the self-discharge rate, and performing complementary charging on the elevator battery according to the self-discharge loss electric quantity until the elevator battery enters an electric quantity saturation state.
The self-discharge loss electric quantity of the elevator can be determined according to the determined self-discharge rate and the determined charging time, and can be determined according to the following modes: Δ Qselfdis ═ δT*tcWherein t iscFor the charging time, Δ Qselfdis the self-discharge loss charge, δTIs the self-discharge rate.
After the self-discharge electricity loss of the elevator battery is determined, the charging time of the battery can be correspondingly prolonged, so that the elevator battery can supplement the self-discharge electricity loss until the elevator battery enters an electricity saturation state. After the elevator battery is charged, the voltage of the elevator battery can be continuously detected to judge whether the elevator battery is in a stable state.
And S163, detecting whether the elevator battery is in an electric quantity saturation state.
And S164, if the elevator battery is in an electric quantity saturation state, acquiring the current capacity of the elevator battery.
And S165, determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection.
And S166, determining the remaining life of the elevator battery according to the battery attenuation.
For the above-mentioned specific implementation of the operations, reference may be made to the above-mentioned related description, and further description is omitted here.
According to the embodiment of the application, the self-discharge condition of the elevator battery is detected according to the temperature of the elevator battery during charging, the self-discharge loss electric quantity of the elevator battery is compensated and charged, the operation error of the battery capacity can be reduced, the misjudgment of the battery is reduced, and the cost of elevator emergency management can be reduced.
Fig. 8 is a flowchart of another elevator battery detection method provided by the present application, on the basis of the foregoing embodiment, optionally, as shown in fig. 8, the method includes:
s170, obtaining the initial capacity of the elevator battery, and judging whether the initial capacity is smaller than the system required capacity.
And S1710, if the initial capacity is smaller than the system required capacity, reporting and early warning.
Before an elevator battery is charged, firstly, acquiring the initial capacity of the elevator battery, and judging whether the initial capacity is smaller than the system required capacity; and if the initial capacity of the elevator battery is smaller than the system required capacity, reporting early warning to prompt a manager to replace the elevator battery. And if the initial capacity of the elevator battery is greater than the system required capacity, it indicates that the elevator battery can be charged.
And S1711, if the initial capacity of the elevator battery is larger than the system required capacity, triggering a battery self-checking command.
And S1712, controlling the elevator battery to enter a charging state according to the battery self-checking command.
The battery self-checking command is a command for triggering the elevator battery to charge and acquiring the temperature of the elevator battery when the elevator battery is charged so as to determine the self-discharge rate of the elevator battery according to the temperature.
And S172, collecting the temperature of the elevator battery when the elevator battery is charged.
And S173, determining the self-discharge rate of the elevator battery according to the temperature.
And S174, determining self-discharge loss electric quantity according to the self-discharge rate, and performing complementary charging on the elevator battery according to the self-discharge loss electric quantity until the elevator battery enters an electric quantity saturation state.
And S175, detecting whether the elevator battery is in a power saturation state.
And S176, if the elevator battery is in an electric quantity saturation state, acquiring the current capacity of the elevator battery.
And S177, determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection.
And S178, determining the remaining life of the elevator battery according to the battery attenuation.
For the above-mentioned specific implementation of the operations, reference may be made to the above-mentioned related description, and further description is omitted here.
Fig. 9 is a schematic structural diagram of an elevator battery detection apparatus provided in an embodiment of the present application, where the apparatus may be implemented by software and/or hardware, and may be generally integrated on a hardware platform. As shown in fig. 9, the elevator battery detection apparatus includes:
a capacity obtaining module 210, configured to obtain a current capacity of an elevator battery;
the decrement module 211 is configured to determine a battery decrement according to the current capacity and a reference capacity, where the reference capacity is a battery capacity obtained in a last detection;
a battery life module 212 for determining the remaining life of the elevator battery based on the amount of battery degradation.
The embodiment of the application discloses an elevator battery detection device, which is used for detecting the current capacity of an elevator battery by acquiring the current capacity of the elevator battery; determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection; determining the remaining life of the elevator battery according to the battery decrement. According to the embodiment of the application, the battery attenuation can be obtained according to the current capacity and the last detected capacity, the remaining life of the elevator battery can be estimated according to the battery attenuation, and the estimation accuracy of the elevator battery life can be improved.
Optionally, the method further comprises:
the stability detection module is used for detecting whether the voltage change information of the elevator battery meets a preset stability condition before determining the battery attenuation amount according to the current capacity and the reference capacity;
and the stability judgment module is used for executing the step of acquiring the current capacity of the elevator battery if the voltage change information meets the preset stability condition.
Optionally, the stability detection module is specifically configured to:
detecting whether the voltage change slope of the elevator battery is within a preset range;
and if the voltage change slope is within the preset range, determining that the voltage change information meets the preset stable condition.
Optionally, the attenuation module is specifically configured to:
determining an acquisition time interval according to the acquisition time of the current capacity and the acquisition time of the reference capacity;
determining a capacity attenuation amount according to the difference value between the current capacity and the reference capacity;
and determining the battery attenuation according to the capacity attenuation and the acquisition time interval.
Optionally, the battery life module is specifically configured to:
acquiring system required capacity; wherein the system demand capacity is a capacity required for operation of the elevator system;
determining an attenuatable remaining capacity of the elevator battery according to the current capacity of the elevator battery and the system demand capacity;
determining the remaining life of the elevator battery according to the decayable remaining capacity and the battery decay amount.
Optionally, the method further comprises:
the early warning detection module is used for detecting whether the residual life is lower than the early warning life of the battery after the residual life of the elevator battery is determined according to the battery attenuation amount;
and the early warning module is used for reporting and early warning if the residual life is shorter than the early warning life.
Optionally, the capacity obtaining module is specifically configured to:
acquiring the current electric quantity and the current voltage of the elevator battery;
and determining the current capacity of the elevator battery according to the current electric quantity and the current voltage.
Optionally, the method further comprises:
the saturation detection module is used for detecting whether the elevator battery is in an electric quantity saturation state before the current capacity of the elevator battery is obtained;
and the saturation execution module is used for executing the operation of acquiring the current capacity of the elevator battery if the elevator battery is in a state of electric quantity saturation.
Optionally, the method further comprises:
the temperature module is used for collecting the temperature of the elevator battery when the elevator battery is charged before detecting whether the elevator battery is in an electric quantity saturation state;
a self-discharge rate module for determining a self-discharge rate of the elevator battery based on the temperature;
and the supplementary electric module is used for determining self-discharge loss electric quantity according to the self-discharge rate and carrying out supplementary charging on the elevator battery according to the self-discharge loss electric quantity until the elevator battery enters an electric quantity saturation state.
Optionally, the method further comprises:
the initial capacity judging module is used for acquiring the initial capacity of the elevator battery before the temperature of the elevator battery is acquired when the elevator battery is charged and judging whether the initial capacity is smaller than the system required capacity;
a reporting module, configured to perform reporting warning if the initial capacity is smaller than the system required capacity;
the battery self-checking module is used for triggering a battery self-checking command if the initial capacity of the elevator battery is greater than the system required capacity; and controlling the elevator battery to enter a charging state according to the battery self-checking command.
The present embodiments also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method of elevator battery detection, the method comprising:
acquiring the current capacity of an elevator battery;
determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection;
determining the remaining life of the elevator battery according to the battery decrement.
Optionally, the computer executable instructions, when executed by the computer processor, may be further configured to perform an elevator battery detection method provided in any of the embodiments of the present application.
From the above description of the embodiments, it is obvious for those skilled in the art that the present application can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods described in the embodiments of the present application.
As shown in fig. 10, a schematic diagram of a hardware structure of an elevator battery detection apparatus provided in an embodiment of the present application is shown in fig. 10, where the elevator battery detection apparatus includes:
one or more processors 410, one processor 410 being exemplified in FIG. 10;
a memory 420;
the elevator battery detection apparatus may further include: an input device 430 and an output device 440.
The processor 410, the memory 420, the input device 430 and the output device 440 in the elevator battery detection apparatus may be connected by a bus or other means, and fig. 10 illustrates the connection by the bus as an example.
The memory 420, which is a non-transitory computer-readable storage medium, may be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to an elevator battery detection method in the embodiment of the present application (e.g., the capacity acquisition module 210, the decrement module 211, and the battery life module 212 shown in fig. 9). The processor 410 executes various functional applications and data processing of the elevator battery detection device by running software programs, instructions and modules stored in the memory 420, namely, implements the elevator battery detection method of the above-described method embodiment.
The memory 420 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created from use of the elevator emergency system, and the like. Further, the memory 420 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 420 may optionally include memory located remotely from processor 410, which may be connected to the terminal device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 430 may be used to receive entered numeric or character information and generate key signal inputs relating to elevator battery test equipment user settings and function controls. The output device 440 may include a display device such as a display screen.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (11)
1. An elevator battery detection method, characterized by comprising:
acquiring the current capacity of an elevator battery;
wherein the obtaining the current capacity of the elevator battery comprises:
acquiring the current electric quantity and the current voltage of the elevator battery;
determining the current capacity of the elevator battery according to the current electric quantity and the current voltage;
the current capacity of the elevator battery conforms to a formula Q ═ C × V, wherein Q is the current electric quantity of the elevator battery, V is the current voltage of the elevator battery, C is the current capacity of the elevator battery, and the capacity can be obtained through calculation according to the voltage and the electric quantity;
determining a battery attenuation amount according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained in the last detection;
determining the remaining life of the elevator battery according to the battery attenuation amount;
wherein the determining the remaining life of the elevator battery from the battery delta comprises:
acquiring system required capacity; wherein the system demand capacity is a capacity required for operation of the elevator system;
determining an attenuatable remaining capacity of the elevator battery according to the current capacity of the elevator battery and the system demand capacity;
determining the remaining life of the elevator battery according to the decayable remaining capacity and the battery decay amount.
2. The method of claim 1, wherein prior to determining the amount of battery fade from the current capacity and a reference capacity, further comprising:
detecting whether the voltage change information of the elevator battery meets a preset stable condition or not;
and if the voltage change information meets the preset stable condition, executing the step of acquiring the current capacity of the elevator battery.
3. The method of claim 2, wherein the detecting whether the voltage change information of the elevator battery satisfies a preset stability condition comprises:
detecting whether the voltage change slope of the elevator battery is within a preset range;
and if the voltage change slope is within the preset range, determining that the voltage change information meets the preset stable condition.
4. The method of claim 1, wherein determining a battery fade amount based on the current capacity and a reference capacity comprises:
determining an acquisition time interval according to the acquisition time of the current capacity and the acquisition time of the reference capacity;
determining a capacity attenuation amount according to the difference value between the current capacity and the reference capacity;
and determining the battery attenuation according to the capacity attenuation and the acquisition time interval.
5. The method of claim 1, wherein after determining the remaining life of the elevator battery based on the amount of battery degradation, further comprising:
detecting whether the remaining life is less than the early warning life of the battery;
and if the residual life is lower than the early warning life, reporting the early warning.
6. The method of any of claims 1 to 5, wherein prior to obtaining the current capacity of the elevator battery, further comprising:
detecting whether the elevator battery is in a power saturation state;
and if the elevator battery is in a state of electric quantity saturation, executing the operation of acquiring the current capacity of the elevator battery.
7. The method of claim 6, wherein before detecting whether the elevator battery is in a state of charge saturation, further comprising:
collecting the temperature of the elevator battery when the elevator battery is charged;
determining a self-discharge rate of the elevator battery according to the temperature;
and determining self-discharge loss electric quantity according to the self-discharge rate, and performing complementary charging on the elevator battery according to the self-discharge loss electric quantity until the elevator battery enters an electric quantity saturation state.
8. The method of claim 7, wherein prior to collecting the temperature of the elevator battery while the elevator battery is charging, further comprising:
acquiring the initial capacity of the elevator battery, and judging whether the initial capacity is smaller than the system required capacity;
if the initial capacity is smaller than the system required capacity, reporting and early warning;
if the initial capacity of the elevator battery is larger than the system required capacity, triggering a battery self-test command;
and controlling the elevator battery to enter a charging state according to the battery self-checking command.
9. An elevator battery detection device, comprising:
the capacity acquisition module is used for acquiring the current capacity of the elevator battery;
the capacity acquisition module is specifically configured to: acquiring the current electric quantity and the current voltage of the elevator battery; determining the current capacity of the elevator battery according to the current electric quantity and the current voltage;
the current capacity of the elevator battery conforms to a formula Q ═ C × V, wherein Q is the current electric quantity of the elevator battery, V is the current voltage of the elevator battery, C is the current capacity of the elevator battery, and the capacity can be obtained through calculation according to the voltage and the electric quantity;
the attenuation module is used for determining the battery attenuation according to the current capacity and a reference capacity, wherein the reference capacity is the battery capacity obtained by the last detection;
the battery life module is used for determining the residual life of the elevator battery according to the battery attenuation amount;
wherein the battery life module is specifically configured to: acquiring system required capacity; wherein the system demand capacity is a capacity required for operation of the elevator system; determining an attenuatable remaining capacity of the elevator battery according to the current capacity of the elevator battery and the system demand capacity; determining the remaining life of the elevator battery according to the decayable remaining capacity and the battery decay amount.
10. An elevator battery testing apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements an elevator battery testing method according to any one of claims 1 to 8.
11. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out an elevator battery detection method according to any one of claims 1 to 8.
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| CN113156314A (en) * | 2021-04-16 | 2021-07-23 | 东风汽车集团股份有限公司 | Method for measuring and calculating service life attenuation of whole-vehicle-level power battery |
| CN113410887B (en) * | 2021-06-29 | 2023-08-18 | 日立楼宇技术（广州）有限公司 | Method and device for supplying power to elevator car |
| CN114217237A (en) * | 2021-11-05 | 2022-03-22 | 东软睿驰汽车技术（沈阳）有限公司 | Battery health state determination method and device based on storage endurance and electronic equipment |
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| JP5737232B2 (en) * | 2012-07-12 | 2015-06-17 | トヨタ自動車株式会社 | Device for determining the remaining life of stationary storage batteries |
| CN103698710A (en) * | 2013-12-12 | 2014-04-02 | 中南大学 | Prediction method for life cycle of battery |
| CN104833918B (en) * | 2014-05-22 | 2018-12-11 | 北京宝沃汽车有限公司 | The service life detection method and system of power battery for vehicle |
| US10345391B2 (en) * | 2015-03-03 | 2019-07-09 | Samsung Electronics Co., Ltd. | Method and apparatus for predicting remaining useful life (RUL) of battery |
| CN104678317A (en) * | 2015-03-05 | 2015-06-03 | 普天新能源车辆技术有限公司 | Method and device for detecting capacity fading of power lithium battery |
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