CN117543785A

CN117543785A - Battery charge and discharge protection method, system and readable storage medium

Info

Publication number: CN117543785A
Application number: CN202311523475.4A
Authority: CN
Inventors: 李�杰
Original assignee: Shenzhen Ubetter Technology Co ltd
Current assignee: Shenzhen Ubetter Technology Co ltd
Priority date: 2023-11-14
Filing date: 2023-11-14
Publication date: 2024-02-09

Abstract

A battery charge and discharge protection method, a system and a readable storage medium relate to the technical field of medical appliances. In the method, first state data and second state data are acquired; monitoring an operational state of the medical device; if the medical equipment is in a standby state, determining a first rechargeable battery with the largest current electric quantity and a second rechargeable battery with the smallest current electric quantity in the rechargeable battery pack according to the first state data; determining a first non-rechargeable battery with the smallest current electric quantity in the non-rechargeable battery pack according to the second state data; controlling the first non-rechargeable battery to charge the first rechargeable battery; the first non-rechargeable battery is controlled to charge the second rechargeable battery. Thereby improving the service life and performance of the battery and improving the probability of normal operation of the device.

Description

Battery charge and discharge protection method, system and readable storage medium

Technical Field

The present disclosure relates to the field of medical devices, and in particular, to a battery charge and discharge protection method, system, and readable storage medium.

Background

In today's medical environment, battery-powered ambulatory medical devices, such as cardiac pacemakers and portable ventilators, have become a common and necessary device.

Currently, a Battery Management System (BMS) is widely used for management of battery level. The BMS can monitor state data of the battery, such as voltage, current, temperature, etc., in real time and make a charge or discharge decision accordingly.

However, the BMS of the related art may cause the battery to be in a low-battery state due to the self-discharge of the battery, which has an effect on the service life and performance of the battery. And when the battery level is low, the normal operation of the device may be affected. Especially in emergency situations, if the battery is not sufficiently charged, the device may not work properly, thus posing a threat to the life safety of the patient.

Disclosure of Invention

The application provides a battery charge and discharge protection method, a battery charge and discharge protection system and a readable storage medium, which are used for improving the service life and performance of a battery and improving the probability of normal operation of equipment.

In a first aspect, the present application provides a battery charge-discharge protection method, including:

acquiring first state data of each rechargeable battery in the rechargeable battery pack, and acquiring second state data of each non-rechargeable battery in the non-rechargeable battery pack;

monitoring the operation state of the medical equipment under the condition that the rechargeable battery pack is not connected with an external power supply;

If the medical equipment is in a standby state, determining a first rechargeable battery with the largest current electric quantity and a second rechargeable battery with the smallest current electric quantity in the rechargeable battery pack according to the first state data; determining a first non-rechargeable battery with the smallest current electric quantity in the non-rechargeable battery pack according to the second state data;

controlling the first non-rechargeable battery to charge the first rechargeable battery under the condition that the current electric quantity of the first rechargeable battery is smaller than a first threshold value;

controlling the first non-rechargeable battery to charge the second rechargeable battery under the condition that the current electric quantity of the second rechargeable battery is smaller than a second threshold value; the second threshold is less than the first threshold.

In the above embodiment, when the device is not connected to an external power supply, and in the standby state, according to the state data of the rechargeable battery pack and the non-rechargeable battery pack, the non-rechargeable battery with the smallest electric quantity is selected to charge the rechargeable battery with the largest electric quantity, so as to ensure the normal operation of the device, and avoid the interruption of the operation of the device caused by the too low electric quantity of the battery. Meanwhile, the method effectively avoids the self-discharge problem caused by the fact that the battery is in a low-power state for a long time by charging the rechargeable battery with the minimum electric quantity, is beneficial to prolonging the service life of the rechargeable battery, and meanwhile, the first non-rechargeable battery with the minimum electric quantity is selected to discharge, so that the first non-rechargeable battery with the minimum electric quantity is quickly consumed, other non-rechargeable batteries are prevented from being in the low-power state for a long time, the service lives of the other non-rechargeable batteries are protected, the service life and the performance of the battery are prolonged, and meanwhile, the probability of normal operation of equipment is improved.

With reference to some embodiments of the first aspect, in some embodiments, after the step of monitoring the operating state of the medical device in a case where it is determined that the rechargeable battery pack is not connected to the external power source, the method further includes:

if the medical equipment is in a use state, determining a first rechargeable battery with the largest current electric quantity in the rechargeable battery pack according to the first state data; determining a first non-rechargeable battery with the smallest current electric quantity and a second non-rechargeable battery with the largest current electric quantity in the non-rechargeable battery pack according to the second state data;

monitoring whether the current electric quantity of the first rechargeable battery is smaller than a first threshold value;

if the current electric quantity of the first rechargeable battery is not smaller than the first threshold value, controlling the first rechargeable battery to output electric quantity;

if the current electric quantity of the first rechargeable battery is smaller than a first threshold value, controlling the second non-rechargeable battery to output electric quantity;

and controlling the first non-rechargeable battery to charge the first rechargeable battery until the current electric quantity of the first rechargeable battery is not smaller than a first threshold value.

In the above embodiment, when the device is not connected to an external power supply and in a use state, when the current electric quantity of the rechargeable battery with the largest electric quantity is higher than the first threshold, the battery is selected to output the electric quantity, so as to keep the continuous operation of the device and reduce the consumption of the non-rechargeable battery. However, when the electric quantity of the rechargeable battery with the largest electric quantity is lower than the first threshold value, the non-rechargeable battery with the largest electric quantity is selected to output the electric quantity, and meanwhile, the non-rechargeable battery with the smallest electric quantity charges the rechargeable battery with the largest electric quantity, so that continuous operation of the equipment under the condition without an external power supply can be ensured, consumption of the non-rechargeable battery can be reduced, and cost is saved.

With reference to some embodiments of the first aspect, in some embodiments, the step of obtaining first state data of each rechargeable battery in the rechargeable battery pack and obtaining second state data of each non-rechargeable battery in the non-rechargeable battery pack further includes:

monitoring the operation state of the medical equipment under the condition that the rechargeable battery pack is connected with an external power supply;

if the medical equipment is in a standby state, determining a first rechargeable battery with the largest current electric quantity and a second rechargeable battery with the smallest current electric quantity in the rechargeable battery pack according to the first state data;

in the case that the current electric quantity of the first rechargeable battery is smaller than a first threshold value, and in the case that the current electric quantity of the second rechargeable battery is smaller than a second threshold value; controlling an external power supply to charge the first rechargeable battery until the current electric quantity of the first rechargeable battery is not smaller than a first threshold value;

controlling an external power supply to charge the second rechargeable battery until the current electric quantity of the second rechargeable battery is not smaller than a second threshold value;

determining a charging current according to the first state data;

and charging all the rechargeable batteries simultaneously by the external power supply according to the charging current until all the rechargeable batteries are fully charged simultaneously in the same time.

In the above embodiment, when the device is connected to the external power supply and in the standby state, the rechargeable battery with the largest electric quantity is charged preferentially, so as to ensure the normal operation of the device, avoid the interruption of the operation of the device due to the excessively low electric quantity of the battery, and then charge the rechargeable battery with the smallest electric quantity, effectively avoid the self-discharge problem caused by the fact that the battery is in the low electric quantity state for a long time, and help to prolong the service life of the rechargeable battery. Avoid the battery overcharge, lengthen the life-span of the battery.

With reference to some embodiments of the first aspect, in some embodiments, after the step of monitoring the operating state of the medical device in a case where it is determined that the rechargeable battery pack is connected to the external power source, the method further includes;

if the medical equipment is in a use state, determining a first rechargeable battery with the largest current electric quantity in the rechargeable battery pack according to the first state data;

controlling the output electric quantity of the first rechargeable battery;

and controlling the external power supply to charge the first rechargeable battery.

In the above embodiment, when the device is connected to the external power supply and in a use state, the rechargeable battery with the largest electric quantity is determined, and then the battery is controlled to output the electric quantity, so that the normal operation of the device is ensured, and the external power supply charges the battery to supplement the electric quantity. The method can effectively manage the charging and discharging processes of the battery, avoid the interruption of the operation of the equipment caused by the excessively low electric quantity of the battery, simultaneously avoid the overdischarge of the battery, prolong the service life of the battery and improve the service efficiency and stability of the equipment.

With reference to some embodiments of the first aspect, in some embodiments, after the step of controlling the external power source to charge the first rechargeable battery, the method further includes:

monitoring a current temperature of the first rechargeable battery;

controlling the first rechargeable battery to stop outputting electric quantity under the condition that the current temperature of the first rechargeable battery is greater than a temperature threshold value;

determining a third rechargeable battery with the largest current electric quantity in the rechargeable battery pack except the first rechargeable battery according to the first state data;

controlling the output electric quantity of the third rechargeable battery;

monitoring whether the temperature change trend of the first rechargeable battery is reduced;

If the temperature change trend of the first rechargeable battery is not reduced, controlling the external power supply to stop charging the first rechargeable battery.

In the above embodiment, when the temperature of the rechargeable battery with the maximum current electric quantity rises above the threshold value, the battery is timely controlled to stop outputting the electric quantity and stop charging, so that the battery is prevented from overheating, the battery is protected, and the safe operation of the equipment is ensured. Meanwhile, according to the state data of the batteries, the method also determines a third battery with the largest current electric quantity except the rechargeable battery with the largest current electric quantity, and controls the output electric quantity of the third battery so as to ensure the continuous operation of the equipment.

With reference to some embodiments of the first aspect, in some embodiments, if the current power of the first rechargeable battery is less than the first threshold, the method further includes, after the step of controlling the output power of the second non-rechargeable battery:

controlling all rechargeable batteries in the rechargeable battery pack to output electric quantity under the condition that the change trend of the current electric quantity of the first rechargeable battery is exponentially reduced;

and after all the rechargeable batteries output electric quantity, and under the condition that the current electric quantity change trend of the first rechargeable battery is exponentially reduced, controlling all the non-rechargeable batteries in the non-rechargeable battery pack to output electric quantity.

In the above embodiment, by monitoring the power variation trend of the first rechargeable battery, if the power index is reduced, the output power of all the rechargeable batteries in the battery pack is controlled. Therefore, when the electric quantity of the first battery drops sharply, other batteries can immediately pick up the power supply, and continuous operation of the equipment is guaranteed. If the first battery power is still exponentially decreased after all of the rechargeable batteries output power, then all of the battery output power in the non-rechargeable battery pack is further controlled. The strategy can ensure that the equipment can still obtain stable power supply under the condition of abrupt change of the battery power, and avoid the operation interruption of the equipment caused by the sudden drop of the power.

With reference to some embodiments of the first aspect, in some embodiments, in a case where a current charge of the second rechargeable battery is less than a second threshold value, controlling the first non-rechargeable battery to charge the second rechargeable battery; after the step of the second threshold being less than the first threshold, the method further comprises:

determining health data of each rechargeable battery according to the first state data;

determining average health data from all the health data;

the first threshold and the second threshold are adjusted according to the average health data.

In the above embodiment, by collecting and analyzing the health data of each rechargeable battery, determining average health data, and adjusting the first threshold and the second threshold according to the average health data, dynamic management of the battery threshold can be achieved, so that the setting of the first threshold and the second threshold better meets the actual situation of the rechargeable battery and the operation requirement of the device.

In a second aspect, embodiments of the present application provide a battery charge-discharge protection system, including:

a state data acquisition module for acquiring first state data of each rechargeable battery in the rechargeable battery pack and acquiring second state data of each non-rechargeable battery in the non-rechargeable battery pack;

the first monitoring module is used for monitoring the operation state of the medical equipment under the condition that the rechargeable battery pack is not connected with an external power supply;

the first determining module is used for determining a first rechargeable battery with the largest current electric quantity and a second rechargeable battery with the smallest current electric quantity in the rechargeable battery pack according to the first state data if the medical equipment is in a standby state; determining a first non-rechargeable battery with the smallest current electric quantity in the non-rechargeable battery pack according to the second state data;

The first charging module is used for controlling the first non-rechargeable battery to charge the first rechargeable battery under the condition that the current electric quantity of the first rechargeable battery is smaller than a first threshold value;

the second charging module is used for controlling the first non-rechargeable battery to charge the second rechargeable battery under the condition that the current electric quantity of the second rechargeable battery is smaller than a second threshold value; the second threshold is less than the first threshold.

With reference to some embodiments of the second aspect, in some embodiments, the system further comprises:

the second determining module is used for determining a first rechargeable battery with the largest current electric quantity in the rechargeable battery pack according to the first state data if the medical equipment is in a use state; determining a first non-rechargeable battery with the smallest current electric quantity and a second non-rechargeable battery with the largest current electric quantity in the non-rechargeable battery pack according to the second state data;

the second monitoring module is used for monitoring whether the current electric quantity of the first rechargeable battery is smaller than a first threshold value or not;

the first control module is used for controlling the output electric quantity of the first rechargeable battery if the current electric quantity of the first rechargeable battery is not smaller than a first threshold value;

the second control module is used for controlling the second non-rechargeable battery to output electric quantity if the current electric quantity of the first rechargeable battery is smaller than a first threshold value;

And the third control module is used for controlling the first non-rechargeable battery to charge the first rechargeable battery until the current electric quantity of the first rechargeable battery is not smaller than a first threshold value.

the third monitoring module is used for monitoring the running state of the medical equipment under the condition that the rechargeable battery pack is connected with an external power supply;

the third determining module is used for determining a first rechargeable battery with the largest current electric quantity and a second rechargeable battery with the smallest current electric quantity in the rechargeable battery pack according to the first state data if the medical equipment is in a standby state;

a fourth control module, configured to, in a case where the current electric quantity of the first rechargeable battery is less than a first threshold value, and in a case where the current electric quantity of the second rechargeable battery is less than a second threshold value; controlling an external power supply to charge the first rechargeable battery until the current electric quantity of the first rechargeable battery is not smaller than a first threshold value;

the fifth control module is used for controlling the external power supply to charge the second rechargeable battery until the current electric quantity of the second rechargeable battery is not smaller than a second threshold value;

a fourth determining module for determining a charging current according to the first state data;

And the third charging module is used for enabling the external power supply to charge all the rechargeable batteries at the same time according to the charging current until all the rechargeable batteries are fully charged at the same time.

a fifth determining module, configured to determine, if the medical device is in a use state, a first rechargeable battery with a maximum current electric quantity in the rechargeable battery pack according to the first state data;

the sixth control module is used for controlling the output electric quantity of the first rechargeable battery;

and the seventh control module is used for controlling the external power supply to charge the first rechargeable battery.

a fourth monitoring module for monitoring a current temperature of the first rechargeable battery;

an eighth control module, configured to control the first rechargeable battery to stop outputting electric quantity when the current temperature of the first rechargeable battery is greater than the temperature threshold;

a sixth determining module, configured to determine, according to the first status data, a third rechargeable battery having a maximum current electric quantity in the rechargeable battery pack other than the first rechargeable battery;

a ninth control module for controlling the output power of the third rechargeable battery;

The fifth monitoring module is used for monitoring whether the temperature change trend of the first rechargeable battery is declining;

and the tenth control module is used for controlling the external power supply to stop charging the first rechargeable battery if the temperature change trend of the first rechargeable battery is not declining.

an eleventh control module, configured to control all rechargeable batteries in the rechargeable battery pack to output electric power when a trend of a current electric power of the first rechargeable battery is an exponential decrease;

and the twelfth control module is used for controlling all the non-rechargeable batteries in the non-rechargeable battery pack to output electric quantity when the current electric quantity of the first rechargeable battery changes in a trend of exponentially decreasing after all the rechargeable batteries output electric quantity.

A seventh determining module for incorporating some embodiments of the second aspect, in some embodiments, the system further comprises:

an eighth determining module for determining health data of each rechargeable battery according to the first status data;

a ninth determining module, configured to determine average health data according to all the health data;

and the adjusting module is used for adjusting the first threshold value and the second threshold value according to the average health data.

In a third aspect, embodiments of the present application provide a battery charge-discharge protection system, including: one or more processors and memory;

the memory is coupled to the one or more processors, the memory for storing computer program code comprising computer instructions that the one or more processors call to cause the one battery charge and discharge protection system to perform the method as described in the first aspect and any possible implementation of the first aspect.

In a fourth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a server, cause the server to perform a method as described in the first aspect and any possible implementation of the first aspect.

In a fifth aspect, embodiments of the present application provide a computer-readable storage medium comprising instructions that, when executed on a battery charge and discharge protection system, cause the battery charge and discharge protection system to perform a method as described in the first aspect and any one of the possible implementations of the first aspect.

It will be appreciated that the battery charge and discharge protection system provided in the second aspect, the battery charge and discharge protection system provided in the third aspect, the computer program product provided in the fourth aspect, and the computer storage medium provided in the fifth aspect are all configured to perform a battery charge and discharge protection method provided in an embodiment of the present application. Therefore, the advantages achieved by the method can be referred to as the advantages of the corresponding method, and will not be described herein.

One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:

1. according to the battery charging and discharging protection method, the external power supply is not connected to the equipment, and in the standby state, the non-rechargeable battery with the minimum electric quantity is selected to charge the rechargeable battery with the maximum electric quantity according to the state data of the rechargeable battery pack and the non-rechargeable battery pack, so that the normal operation of the equipment is guaranteed, and the operation interruption of the equipment caused by the excessively low electric quantity of the battery is avoided. Meanwhile, the method effectively avoids the self-discharge problem caused by the fact that the battery is in a low-power state for a long time by charging the rechargeable battery with the minimum electric quantity, is beneficial to prolonging the service life of the rechargeable battery, and meanwhile, the first non-rechargeable battery with the minimum electric quantity is selected to discharge, so that the first non-rechargeable battery with the minimum electric quantity is quickly consumed, other non-rechargeable batteries are prevented from being in the low-power state for a long time, the service lives of the other non-rechargeable batteries are protected, the service life and the performance of the battery are prolonged, and meanwhile, the probability of normal operation of equipment is improved.

2. According to the battery charge and discharge protection method, when the equipment is not connected with an external power supply and in a use state, when the electric quantity of the rechargeable battery with the largest current electric quantity is higher than the first threshold value, the battery is selected to output the electric quantity, so that continuous operation of the equipment is kept, and meanwhile consumption of the non-rechargeable battery is reduced. However, when the electric quantity of the rechargeable battery with the largest electric quantity is lower than the first threshold value, the non-rechargeable battery with the largest electric quantity is selected to output the electric quantity, and meanwhile, the non-rechargeable battery with the smallest electric quantity charges the rechargeable battery with the largest electric quantity, so that continuous operation of the equipment under the condition without an external power supply can be ensured, consumption of the non-rechargeable battery can be reduced, and cost is saved.

3. According to the battery charging and discharging protection method, when equipment is connected with an external power supply and in a standby state, the rechargeable battery with the largest electric quantity is charged preferentially, so that normal operation of the equipment is guaranteed, interruption of operation of the equipment due to excessively low electric quantity of the battery is avoided, then the rechargeable battery with the smallest electric quantity is charged, the problem of self-discharging caused by the fact that the battery is in a low electric quantity state for a long time is effectively avoided, service life of the rechargeable battery is prolonged, charging current is determined according to the electric quantity state finally, the external power supply can charge all the rechargeable batteries at the same time, and the rechargeable batteries are charged until all the batteries are filled at the same time. Avoid the battery overcharge, lengthen the life-span of the battery.

4. According to the battery charge and discharge protection method, when the equipment is connected with an external power supply and in a use state, the rechargeable battery with the largest electric quantity is determined, then the battery is controlled to output the electric quantity, normal operation of the equipment is ensured, and meanwhile the external power supply charges the battery to supplement the electric quantity. The method can effectively manage the charging and discharging processes of the battery, avoid the interruption of the operation of the equipment caused by the excessively low electric quantity of the battery, simultaneously avoid the overdischarge of the battery, prolong the service life of the battery and improve the service efficiency and stability of the equipment.

Drawings

Fig. 1 is a schematic flow chart of a battery charge-discharge protection method provided in the present application.

Fig. 2 is another flow chart of a battery charge-discharge protection method provided in the present application.

Fig. 3 is a schematic diagram of a modular virtual device of a battery charge-discharge protection system provided in the present application.

Fig. 4 is a schematic diagram of a physical device of a battery charge-discharge protection system provided in the present application.

Detailed Description

The terminology used in the following embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates to the contrary. It should also be understood that the term "and/or" as used in this application is intended to encompass any or all possible combinations of one or more of the listed items.

The terms "first," "second," and the like, are used below for descriptive purposes only and are not to be construed as implying or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature, and in the description of embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

A battery charge-discharge protection method in this embodiment is described below:

S101, acquiring first state data of each rechargeable battery in the rechargeable battery pack, and acquiring second state data of each non-rechargeable battery in the non-rechargeable battery pack.

The execution main body of the scheme is the mobile medical equipment powered by the battery, more specifically, a computer in the mobile medical equipment, and the following step scheme is also the execution main body, which is not described in detail later.

In some embodiments: the rechargeable battery may be a lithium ion battery, a nickel metal hydride battery, or a lead acid battery, etc., while the non-rechargeable battery may be a fuel cell or a disposable battery in a battery pack, without limitation. The self-discharge of a non-rechargeable battery is much smaller than a rechargeable battery.

The status data includes the battery power, voltage, current, temperature, and charge/discharge times, however, in other embodiments, the battery power may be included only, which is not limited herein.

In some embodiments, the status of the battery may be directly detected by a built-in sensor. In other embodiments, battery status data provided by a battery management chip (BMS) internal to the battery may be read by communicating with the battery. In other embodiments, the state data of the battery may also be inferred by analyzing the behavior of the battery during operation, for example, by analyzing the voltage and current changes of the battery during charging and discharging.

It should be noted that, in both the rechargeable battery pack and the non-rechargeable battery pack, each battery is independent from each other. The operating state, state of charge, and other relevant parameters of each battery are not directly affected by the other batteries in the same group. Each battery has its own sub-circuit, which may be connected or disconnected by the main circuit, without limitation.

S102, monitoring the operation state of the medical equipment under the condition that the rechargeable battery pack is not connected with an external power supply.

In some embodiments, the presence of an input voltage will be detected when the device is connected to an external power source; when the device is disconnected from the external power source, no input voltage will be detected, which is not limited herein.

In some embodiments, the operating mode and user interaction conditions of the device may be read from an operating system or hardware driver of the device, without limitation.

The medical equipment is in a standby state, and the step S103 is skipped;

the medical equipment is in a use state, and the step S106 is skipped;

s103, if the medical equipment is in a standby state, determining a first rechargeable battery with the largest current electric quantity and a second rechargeable battery with the smallest current electric quantity in the rechargeable battery pack according to the first state data; and determining the first non-rechargeable battery with the smallest current electric quantity in the non-rechargeable battery pack according to the second state data.

And S104, controlling the first non-rechargeable battery to charge the first rechargeable battery under the condition that the current electric quantity of the first rechargeable battery is smaller than a first threshold value.

In one embodiment, a sub-circuit corresponding to the first non-rechargeable battery is connected to the main circuit, and the sub-circuit corresponding to the first rechargeable battery is connected to the main circuit to start supplying power to the first rechargeable battery. And stopping charging the first non-rechargeable battery to the first rechargeable battery after the electric quantity of the first rechargeable battery reaches a preset level.

S105, controlling the first non-rechargeable battery to charge the second rechargeable battery under the condition that the current electric quantity of the second rechargeable battery is smaller than a second threshold value; the second threshold is less than the first threshold.

In one embodiment, the sub-circuit corresponding to the first non-rechargeable battery is connected to the main circuit and the sub-circuit corresponding to the second rechargeable battery is connected to the main circuit. The first non-rechargeable battery starts to provide power to the second rechargeable battery, and when the electric quantity of the second rechargeable battery reaches a preset level, the first non-rechargeable battery stops charging the second rechargeable battery.

It should be noted that, the electric quantity of the first and second rechargeable batteries is not static, but is dynamically updated according to the use condition and the charging process, and new first and second rechargeable batteries may appear after the update, and the steps are repeated for the new first and second rechargeable batteries, which are not repeated here.

Therefore, in the standby state, the device is not connected with an external power supply, and the non-rechargeable battery with the smallest electric quantity is selected to charge the rechargeable battery with the largest electric quantity according to the state data of the rechargeable battery pack and the non-rechargeable battery pack, so that the normal operation of the device is ensured, and the operation interruption of the device caused by the too low electric quantity of the battery is avoided. Meanwhile, the method effectively avoids the self-discharge problem caused by the fact that the battery is in a low-power state for a long time by charging the rechargeable battery with the minimum electric quantity, is beneficial to prolonging the service life of the rechargeable battery, and simultaneously, the first non-rechargeable battery with the minimum electric quantity is selected to discharge, so that the first non-rechargeable battery with the minimum electric quantity is quickly consumed, other non-rechargeable batteries are prevented from being in the low-power state for a long time, the other non-rechargeable batteries are protected, the service life of the other non-rechargeable batteries is prolonged, the service life and the performance of the battery are improved, and meanwhile, the probability of normal operation of equipment is improved

S106, if the medical equipment is in a use state, determining a first rechargeable battery with the largest current electric quantity in the rechargeable battery pack according to the first state data; and determining a first non-rechargeable battery with the smallest current electric quantity and a second non-rechargeable battery with the largest current electric quantity in the non-rechargeable battery pack according to the second state data.

And S107, monitoring whether the current electric quantity of the first rechargeable battery is smaller than a first threshold value.

S108, if the current electric quantity of the first rechargeable battery is not smaller than the first threshold value, controlling the first rechargeable battery to output electric quantity.

The specific implementation method of this step may refer to step S104, which is not described herein.

It should be noted that, in an ideal state, the device can meet the normal operation requirement by only one battery. However, during actual use, the device may encounter various conditions, such as a gradual decrease in the performance of the battery over time, which is caused by the natural aging process of the battery. As the number of battery uses increases and the charge cycle accumulates, the capacity of the battery gradually decreases, so that sufficient power cannot be supplied to meet the normal operation of the device. As another example, the power requirements of the device may also increase. In some particular application scenarios, the device may require a high power output, in which case a single battery may not meet the power requirements of the device.

Therefore, taking a specific solution to the above problem as an example, a battery charge-discharge protection method in the embodiments of the present application will be specifically described.

S1081, controlling all rechargeable batteries in the rechargeable battery pack to output electric quantity under the condition that the change trend of the current electric quantity of the first rechargeable battery is exponentially reduced;

when the change trend of the electric quantity is detected as an exponential decrease, namely, the electric quantity is suddenly decreased, the natural aging of the battery or the increase of the power requirement of the equipment can be determined; at this point, all of the batteries in the rechargeable battery pack will be controlled by the main circuit to begin outputting power to power the device as much as possible. This means that even if the charge of the first rechargeable battery drops sharply, the device can draw power from the other rechargeable batteries, ensuring its proper operation.

S1082, after all the rechargeable batteries output electric quantity, and under the condition that the current electric quantity change trend of the first rechargeable battery is exponentially reduced, controlling all the non-rechargeable batteries in the non-rechargeable battery pack to output electric quantity.

If all of the rechargeable batteries have begun to output power, but the power of the first rechargeable battery still has an exponential decrease, the power output of the non-rechargeable battery pack will be further started. Similarly, all the batteries in the non-rechargeable battery pack are controlled to start outputting electric quantity through the main circuit. This means that even if all the rechargeable batteries are down, the device can still draw power from the non-rechargeable batteries, ensuring that it is running continuously.

Therefore, by monitoring the electric quantity change trend of the first rechargeable battery, if the electric quantity index is reduced, the output electric quantity of all the rechargeable batteries in the battery pack is controlled. Therefore, when the electric quantity of the first battery drops sharply, other batteries can immediately pick up the power supply, and continuous operation of the equipment is guaranteed. If the first battery power is still exponentially decreased after all of the rechargeable batteries output power, then all of the battery output power in the non-rechargeable battery pack is further controlled. The strategy can ensure that the equipment can still obtain stable power supply under the condition of abrupt change of the battery power, and avoid the operation interruption of the equipment caused by the sudden drop of the power.

And S109, if the current electric quantity of the first rechargeable battery is smaller than a first threshold value, controlling the second non-rechargeable battery to output electric quantity.

During actual use, if the current charge of the first rechargeable battery drops below the first threshold, an unstable voltage of the device may occur. To ensure proper operation of the device and to maintain a stable voltage, the second non-rechargeable battery is allowed to output power.

And S1010, controlling the first non-rechargeable battery to charge the first rechargeable battery until the current electric quantity of the first rechargeable battery is not smaller than a first threshold value.

At the same time, the charge of the first non-rechargeable battery is transferred to the first rechargeable battery. Until the charge of the first rechargeable battery is not less than the first threshold, i.e., the charge is restored to the minimum charge required for normal operation of the device.

Therefore, when the equipment is not connected with an external power supply and in a use state, when the electric quantity of the rechargeable battery with the largest current electric quantity is higher than a first threshold value, the battery is selected to output the electric quantity, so that the continuous operation of the equipment is maintained, and meanwhile, the consumption of the non-rechargeable battery is reduced. However, when the electric quantity of the rechargeable battery with the largest electric quantity is lower than the first threshold value, the non-rechargeable battery with the largest electric quantity is selected to output the electric quantity, and meanwhile, the non-rechargeable battery with the smallest electric quantity charges the rechargeable battery with the largest electric quantity, so that continuous operation of the equipment under the condition without an external power supply can be ensured, consumption of the non-rechargeable battery can be reduced, and cost is saved.

After step S1010, the method further comprises:

s1011, determining the health data of each rechargeable battery according to the first state data;

determining health data of the rechargeable battery based on the status data is well established in the related art, and will not be described in detail herein,

the health data of a battery is typically an indicator of the health of the battery. For example, if a battery is charged a lot of times, the maximum power is reduced, and the temperature is often too high, the health data of the battery may be low, indicating that the health condition is poor.

S1012, determining average health data according to all the health data;

and S1013, adjusting the first threshold and the second threshold according to the average health data.

If the average health data is low, indicating that the overall battery health is poor, the system may lower both thresholds, e.g., the maximum charge current threshold, the maximum temperature threshold, thereby reducing battery wear and extending battery life.

In one embodiment, the adjustment is performed according to an equal-scale scheme, i.e., the ratio of the first threshold value and the second threshold value is equal to the ratio of the average health data to the standard health data, which is not limited herein.

Therefore, the dynamic management of the battery threshold values can be realized by collecting and analyzing the health data of each rechargeable battery, determining the average health data and then adjusting the first threshold value and the second threshold value according to the average health data, so that the setting of the first threshold value and the second threshold value more accords with the actual conditions of the rechargeable battery and the running requirements of equipment.

The above embodiments are all cases where the device is not connected to an external power source. In practical applications, the device may be connected to an external power source, and a battery charge/discharge protection method in the embodiment of the present application will be described in detail with reference to another flow chart of the battery charge/discharge protection method shown in fig. 2:

fig. 2 is a schematic flow chart of a battery charge-discharge protection method provided in the present application, as shown in fig. 2.

S201, under the condition that the rechargeable battery pack is connected with an external power supply, monitoring the operation state of the medical equipment.

S202, if the medical equipment is in a standby state, determining a first rechargeable battery with the largest current electric quantity and a second rechargeable battery with the smallest current electric quantity in the rechargeable battery pack according to the first state data.

S203, in the case that the current electric quantity of the first rechargeable battery is smaller than a first threshold value, and in the case that the current electric quantity of the second rechargeable battery is smaller than a second threshold value; and controlling the external power supply to charge the first rechargeable battery until the current electric quantity of the first rechargeable battery is not smaller than a first threshold value.

It should be noted that, since the external power supply may be disconnected at any time, it is first necessary to ensure stable operation of the device, so as to avoid interruption of operation of the device due to too low battery level.

S204, controlling the external power supply to charge the second rechargeable battery until the current electric quantity of the second rechargeable battery is not smaller than a second threshold value.

It should be noted that, it is necessary to prevent the self-discharge problem of the battery caused by maintaining the low state of charge for a long time, so as to extend the service life of the battery and maintain the performance thereof.

S205, determining the charging current according to the first state data.

In a specific embodiment, the total power (i.e., battery capacity) and the current remaining power of each rechargeable battery may be obtained through a hardware interface of the battery. Next, it is necessary to know the charging efficiency of the battery, that is, the charging current that the battery can receive per unit time. This information is typically obtained from battery specification parameters or historical charging data. Based on the obtained information, the charging current required for each battery of the device can be calculated. Specifically, the power requirements of the device are first divided by the total number of batteries to obtain the amount of power each battery needs to provide. Then, the amount of power each battery needs to provide is divided by the charging efficiency of the battery, thereby obtaining the charging current value required by each battery. Finally, in order to ensure that all batteries can be fully charged at the same time, the maximum value of the charging currents required by all batteries is selected as the final charging current.

And S206, enabling the external power supply to charge all the rechargeable batteries at the same time according to the charging current until all the rechargeable batteries are fully charged at the same time.

Therefore, when the equipment is connected with an external power supply and in a standby state, the rechargeable battery with the largest electric quantity can be charged preferentially, so that the normal operation of the equipment is ensured, the interruption of the operation of the equipment caused by the excessively low electric quantity of the battery is avoided, then the rechargeable battery with the smallest electric quantity can be charged, the self-discharge problem caused by the fact that the battery is in a low electric quantity state for a long time is effectively avoided, the service life of the rechargeable battery is prolonged, and finally, the charging current is determined according to the electric quantity state, so that the external power supply can charge all the rechargeable batteries at the same time until all the batteries are charged at the same time. Avoid the battery overcharge, lengthen the life-span of the battery.

S207, if the medical equipment is in a use state, determining a first rechargeable battery with the largest current electric quantity in the rechargeable battery pack according to the first state data.

S208, controlling the output electric quantity of the first rechargeable battery.

S209, controlling an external power supply to charge the first rechargeable battery.

It should be noted that, during actual use, if the first rechargeable battery is simultaneously charged and discharged, the battery temperature may be increased, and further, a safety problem may be caused.

S2091, monitoring a current temperature of the first rechargeable battery;

in an alternative embodiment, the current temperature is obtained by a built-in temperature sensor.

S2092, controlling the first rechargeable battery to stop outputting the electric quantity if the current temperature of the first rechargeable battery is greater than the temperature threshold;

when the current temperature of the first rechargeable battery is detected to be greater than the set temperature threshold, the battery is immediately controlled to stop outputting electric quantity, so that the safety problem caused by the fact that the temperature continues to rise is prevented.

S2093, determining a third rechargeable battery with the largest current electric quantity in the rechargeable battery pack except the first rechargeable battery according to the first state data;

s2094, controlling the third rechargeable battery to output power;

S2095, monitoring whether the temperature change trend of the first rechargeable battery is decreasing;

and S2096, if the temperature change trend of the first rechargeable battery is not reduced, controlling the external power supply to stop charging the first rechargeable battery.

The trend of the temperature change of the first rechargeable battery is continuously monitored. If the temperature change trend of the first rechargeable battery is detected not to be reduced, the external power supply is controlled to stop charging the battery. In this way, the temperature of the first rechargeable battery can be prevented from further increasing.

When the temperature of the rechargeable battery with the maximum current electric quantity rises above the threshold value, the battery is timely controlled to stop outputting the electric quantity and stop charging, so that the battery is prevented from being overheated, the battery is protected, and the safe operation of equipment is ensured. Meanwhile, according to the state data of the batteries, the method also determines a third battery with the largest current electric quantity except the rechargeable battery with the largest current electric quantity, and controls the output electric quantity of the third battery so as to ensure the continuous operation of the equipment.

Therefore, when the equipment is connected with an external power supply and in a use state, the rechargeable battery with the largest electric quantity is determined, and then the battery is controlled to output the electric quantity, so that the normal operation of the equipment is ensured, and meanwhile, the external power supply charges the battery to supplement the electric quantity. The method can effectively manage the charging and discharging processes of the battery, avoid the interruption of the operation of the equipment caused by the excessively low electric quantity of the battery, simultaneously avoid the overdischarge of the battery, prolong the service life of the battery and improve the service efficiency and stability of the equipment.

The following are device embodiments of the present application, which may be used to perform method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

Referring to fig. 3, an embodiment of the present application provides a battery charge and discharge protection system, including:

a state data acquisition module 301, configured to acquire first state data of each rechargeable battery in the rechargeable battery group, and acquire second state data of each non-rechargeable battery in the non-rechargeable battery group;

a first monitoring module 302, configured to monitor an operation state of the medical device when it is determined that the rechargeable battery pack is not connected to the external power supply;

a first determining module 303, configured to determine, according to the first state data, a first rechargeable battery with the largest current electric quantity and a second rechargeable battery with the smallest current electric quantity in the rechargeable battery pack if the medical device is in a standby state; determining a first non-rechargeable battery with the smallest current electric quantity in the non-rechargeable battery pack according to the second state data;

a first charging module 304, configured to control the first non-rechargeable battery to charge the first rechargeable battery if the current power of the first rechargeable battery is less than a first threshold;

A second charging module 305, configured to control the first non-rechargeable battery to charge the second rechargeable battery if the current power of the second rechargeable battery is less than a second threshold; the second threshold is less than the first threshold.

In some embodiments, the system further comprises:

A seventh determination module for, in some embodiments, the system further comprising:

The application also discloses a battery charge and discharge protection system. Referring to fig. 4, a schematic diagram of a physical device of a battery charge-discharge protection system is provided. The computer 400 may include: at least one processor 401, at least one network interface 404, a user interface 403, a memory 405, and at least one communication bus 402.

Wherein communication bus 402 is used to enable connected communications between these components.

The user interface 403 may include a Display screen (Display) and a Camera (Camera), and the optional user interface 403 may further include a standard wired interface and a standard wireless interface.

The network interface 404 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), among others.

Wherein the processor 401 may include one or more processing cores. The processor 401 connects the various parts within the entire server using various interfaces and lines, performs various functions of the server and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 405, and invoking data stored in the memory 405. Alternatively, the processor 401 may be implemented in at least one hardware form of digital signal processing (DigitalSignalProcessing, DSP), field programmable gate array (Field-ProgrammableGateArray, FPGA), programmable logic array (ProgrammableLogicArray, PLA). The processor 401 may integrate one or a combination of several of a central processing unit (CentralProcessingUnit, CPU), an image processing unit (GraphicsProcessingUnit, GPU), a modem, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor 401 and may be implemented by a single chip.

The memory 405 may include a random access memory (RandomAccessMemory, RAM) or a Read-only memory (Read-only memory). Optionally, the memory 405 includes a non-transitory computer readable medium (non-transitoroompter-readabblestonemachineum). Memory 405 may be used to store instructions, programs, code sets, or instruction sets. The memory 405 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above-described various method embodiments, etc.; the storage data area may store data or the like involved in the above respective method embodiments. The memory 405 may also optionally be at least one storage device located remotely from the aforementioned processor 401. Referring to fig. 4, an operating system, a network communication module, a user interface module, and an application program of a battery charge and discharge protection method may be included in a memory 405, which is a computer storage medium.

In the computer 400 shown in fig. 4, the user interface 403 is mainly used as an interface for providing input for a user, and obtains data input by the user; and the processor 401 may be used to invoke an application of a battery charge and discharge protection method stored in the memory 405, which when executed by the one or more processors 401, causes the computer 400 to perform the method as described in one or more of the embodiments above. It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required in the present application.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

In the several embodiments provided herein, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, such as a division of units, merely a division of logic functions, and there may be additional divisions in actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some service interface, device or unit indirect coupling or communication connection, electrical or otherwise.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a memory, including several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned memory includes: various media capable of storing program codes, such as a U disk, a mobile hard disk, a magnetic disk or an optical disk.

The foregoing is merely exemplary embodiments of the present disclosure and is not intended to limit the scope of the present disclosure. That is, equivalent changes and modifications are contemplated by the teachings of this disclosure, which fall within the scope of the present disclosure. Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure.

This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a scope and spirit of the disclosure being indicated by the claims.

Claims

1. A battery charge-discharge protection method, comprising:

2. The battery charge-discharge protection method according to claim 1, wherein after the step of monitoring the operation state of the medical device in the case where it is determined that the rechargeable battery pack is not connected to an external power source, the method further comprises:

if the current electric quantity of the first rechargeable battery is smaller than the first threshold value, controlling the second non-rechargeable battery to output electric quantity;

And controlling the first non-rechargeable battery to charge the first rechargeable battery until the current electric quantity of the first rechargeable battery is not smaller than the first threshold value.

3. The battery charge-discharge protection method according to claim 1, wherein after the step of acquiring the first state data of each rechargeable battery in the rechargeable battery group and acquiring the second state data of each non-rechargeable battery in the non-rechargeable battery group, the method further comprises:

in the case that the current charge of the first rechargeable battery is less than a first threshold and the current charge of the second rechargeable battery is less than a second threshold; controlling the external power supply to charge the first rechargeable battery until the current electric quantity of the first rechargeable battery is not smaller than a first threshold value;

Controlling the external power supply to charge the second rechargeable battery until the current electric quantity of the second rechargeable battery is not smaller than a second threshold value;

determining a charging current according to the first state data;

and charging all the rechargeable batteries at the same time according to the charging current by using the external power supply until all the rechargeable batteries are fully charged at the same time.

4. The battery charge-discharge protection method according to claim 3, wherein after the step of monitoring the operation state of the medical device in the case where it is determined that the rechargeable battery pack is connected to an external power source, the method further comprises;

controlling the output electric quantity of the first rechargeable battery;

5. The battery charge-discharge protection method according to claim 4, wherein after the step of controlling the external power source to charge the first rechargeable battery, the method further comprises:

Monitoring a current temperature of the first rechargeable battery;

controlling the output electric quantity of the third rechargeable battery;

and if the temperature change trend of the first rechargeable battery is not reduced, controlling the external power supply to stop charging the first rechargeable battery.

6. The battery charge-discharge protection method according to claim 2, wherein after the step of controlling the output power of the second non-rechargeable battery if the current power of the first rechargeable battery is smaller than the first threshold value, the method further comprises:

7. The battery charge-discharge protection method according to any one of claims 1 to 6, characterized in that the first non-rechargeable battery is controlled to charge the second rechargeable battery in the case where the current amount of electricity of the second rechargeable battery is smaller than a second threshold value; after the step of the second threshold being less than the first threshold, the method further comprises:

determining health data for each rechargeable battery based on the first status data;

determining average health data according to all the health data;

and adjusting the first threshold and the second threshold according to the average health data.

8. A battery charge and discharge protection system, comprising:

9. A battery charge and discharge protection system, comprising: one or more processors and memory;

the memory is coupled to the one or more processors, the memory for storing computer program code comprising computer instructions that the one or more processors invoke to cause the battery charge and discharge protection system to perform the method of any of claims 1-7.

10. A computer readable storage medium comprising instructions which, when run on a battery charge and discharge protection system, cause the battery charge and discharge protection system to perform the method of any of claims 1-7.