Storage battery on-line automatic checking charge and discharge performance detection system

Abstract

The invention provides an on-line automatic checking charge and discharge performance detection system for a storage battery. The system comprises an execution module, a storage battery pack, a data acquisition module, a central processing module, a background analysis module and a storage module. The output end of the execution module is connected to the input end of the storage battery pack, and the output end of the storage battery pack is connected to the input end of the data acquisition module. According to the online automatic checking charge-discharge performance detection system for the storage battery, the problems that the storage battery pack needs to be shut down and the charge-discharge test is carried out after the whole storage battery pack is shut down can be solved through online detection, the storage battery pack does not need to be shut down, detection can be carried out at any time, the detection process is fully automatic, professional technicians only need to monitor and check, and the detection efficiency is greatly improved. 24-hour uninterrupted data recording is not needed, state adjustment of the storage battery pack is not needed, and the needed labor cost is greatly reduced.

Description

Technical Field

[0001] The invention relates to the field of battery performance detection, and in particular to an online automatic verification charging and discharging performance detection system for a battery. Background Art

[0002] When the power is cut off, the battery plays an extremely important role as a backup power source in the DC system. Many important equipment must rely on batteries to maintain and operate. However, before the expected life of the battery is reached, its capacity will drop significantly due to various reasons. Therefore, the performance of the battery must be tested regularly to avoid heavy economic losses when the power is cut off due to power accidents.

[0003] Battery packs are widely used as security and UPS power supplies in enterprises, and the integrity of battery packs is very important. According to relevant national industry regulations, battery packs should be tested for verification once a year, and unqualified batteries should be replaced based on the results of the test.

[0004] However, the quality of batteries varies greatly. The service life of some batteries may be lower than the manufacturer's rated life. The decrease in capacity of a single battery and the increase in internal resistance may cause a sharp decline in the performance of the same battery group. In an emergency, the load capacity and load time may be far lower than the nameplate time, leading to accidents. In order to ensure the safe and stable operation of the unit, the battery charge and discharge test is usually carried out when the unit is shut down for maintenance, which requires the shutdown of the entire battery group. The maintenance conditions are harsh and require a lot of manpower.

[0005] Therefore, it is necessary to provide a battery online automatic verification charging and discharging performance detection system to solve the above technical problems. Summary of the invention

[0006] The invention provides a battery online automatic verification charging and discharging performance detection system, which solves the problems in the background technology.

[0007] In order to solve the above technical problems, the present invention provides a battery online automatic verification charging and discharging performance detection system comprising: an execution module, a battery pack, a data acquisition module, a central processing module, a background analysis module and a storage module;

[0008] The output end of the execution module is connected to the input end of the battery pack, the output end of the battery pack is connected to the input end of the data acquisition module, the output end of the data acquisition module is connected to the input end of the central processing module, the central processing module is bidirectionally connected to the background analysis module, and the output end of the background analysis module is connected to the input end of the storage module.

[0009] Preferably, the execution module is used to convert the battery pack from an operating state to a charging and discharging state, the data acquisition module is used to collect the current, voltage and internal resistance of the battery pack, the central processing module is used for centralized processing and transmission of collected data, the background analysis module is used to perform data analysis on the data collected by the data acquisition module and automatically determine whether it is qualified or not, and the storage module is used to store data.

[0010] Preferably, the central processing module is a single chip microcomputer, and its model is STC89C51.

[0011] Preferably, the background analysis module includes a judgment unit, a number marking unit and a data marking unit.

[0012] Preferably, the judging unit is used to judge whether the storage battery is qualified, the number marking unit is used to mark the number of unqualified storage batteries, and the data marking unit is used to mark the data of each hour of unqualified charging and discharging.

[0013] Preferably, it also includes an alarm module, a report generation module and a human-computer interaction module, the input end of the alarm module is connected to the output end of the background analysis module, the input end of the report generation module is connected to the output end of the central processing module, the output end of the report generation module is connected to the input end of the storage module, and the output end of the human-computer interaction module is connected to the input end of the central processing module.

[0014] Preferably, the alarm module is used to promptly alarm and notify professional technicians to make judgments and handle the problem if the battery capacity is insufficient and the discharge time is less than 8 hours during the discharge process.

[0015] Preferably, the alarm module includes a communication unit, which can realize the remote transmission function and remotely transmit the alarm notification to professional technicians. The communication unit is one of 4G, 5G or Bluetooth.

[0016] Preferably, the report generation module automatically generates a report after all tests are completed, and transmits it to the storage module for storage.

[0017] Preferably, the human-computer interaction module is used to perform human-computer interaction operations and realize data interaction between the human-computer interaction module and the central processing module. The display unit of the human-computer interaction module is a liquid crystal display module of model HG1286402C.

[0018] Compared with the related art, the battery online automatic verification charging and discharging performance detection system provided by the present invention has the following beneficial effects:

[0019] The present invention provides an online automatic verification charging and discharging performance detection system for a storage battery. The present invention can solve the problem that a storage battery group needs to be shut down through online detection, and the charging and discharging test can be performed after the entire group is shut down. The storage battery group does not need to be shut down, and the detection can be performed at any time. The detection process is fully automatic, and professional and technical personnel only need to monitor and inspect, and do not need to record data uninterruptedly for 24 hours, and do not need to adjust the state of the storage battery group. The required labor cost is greatly reduced. After the data is generated, it is automatically analyzed, and the number of unqualified batteries and the data of each hour of charging and discharging are marked, and the conclusion is directly given for reference and analysis by professional and technical personnel. The detection data is more reliable, and the accuracy of the single-cell detection result is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a preferred embodiment of the battery online automatic verification charging and discharging performance detection system provided by the present invention;

[0021] Figure 2 A schematic diagram of the structure of a background analysis module of the battery online automatic verification charging and discharging performance detection system provided by the present invention;

[0022] Figure 3 The schematic diagram of the execution module of the online automatic verification charging and discharging performance detection system for the storage battery provided by the present invention;

[0023] Figure 4 This is a schematic diagram of the battery online automatic verification charging and discharging performance detection system provided by the present invention after the execution module is switched. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the battery online automatic verification charging and discharging performance detection system provided by the present invention; Figure 2 A schematic diagram of the structure of a background analysis module of the battery online automatic verification charging and discharging performance detection system provided by the present invention; Figure 3 The schematic diagram of the execution module of the online automatic verification charging and discharging performance detection system for the storage battery provided by the present invention; Figure 4 The schematic diagram of the execution module of the online automatic verification charging and discharging performance detection system for batteries provided by the present invention after switching. The online automatic verification charging and discharging performance detection system for batteries includes: an execution module, a battery pack, a data acquisition module, a central processing module, a background analysis module and a storage module;

[0026] The output end of the execution module is connected to the input end of the battery pack, the output end of the battery pack is connected to the input end of the data acquisition module, the output end of the data acquisition module is connected to the input end of the central processing module, the central processing module is bidirectionally connected to the background analysis module, and the output end of the background analysis module is connected to the input end of the storage module.

[0027] The execution module is used to convert the battery pack from an operating state to a charging and discharging state, the data acquisition module is used to collect the current, voltage and internal resistance of the battery pack, the central processing module is used for centralized processing and transmission of collected data, the background analysis module is used to analyze the data collected by the data acquisition module and automatically determine whether it is qualified or not, and the storage module is used to store data.

[0028] The execution module can switch a single battery from the running state to the charging and discharging state, and short-circuit the original wiring of the battery without affecting the normal operation of other batteries. The voltage of each battery is about 2V, so after a single battery is short-circuited, it will not affect the overall voltage of the system (the voltage level of the battery group in the power plant is generally 110V or 220V). After the battery is switched to the charging and discharging state, the charge-discharge-charge process is carried out according to the national standard, and the current and voltage values ​​for 24 hours are collected by the data acquisition module. After all data are collected, they are sent to the background analysis module for data analysis to automatically determine whether they are qualified or not. If the battery capacity is insufficient during the discharge process and the discharge time is less than 8 hours, the background will promptly notify professional technicians through the alarm module to make judgments and handle them. After all tests are completed, the report generation module automatically generates a report.

[0029] like Figure 3 As shown, during normal operation, the positive and negative poles of all batteries are connected in series.

[0030] like Figure 4 As shown in the figure, after the execution module switch is switched, the adjacent batteries are short-circuited, and the positive and negative batteries are still connected in series. The battery to be tested (the middle one) is no longer connected to the battery pack, but is connected to the charge and discharge instrument. The charge and discharge instrument performs 10 hours of charging and 10 hours of discharging. After the test is completed, the actuator moves and returns to Figure 3 Initial state.

[0031] During the process, the data acquisition module performs uninterrupted data acquisition. The collected data mainly includes current, voltage and internal resistance. The collected data is fed back to the background for analysis.

[0032] During the process, after the actuator receives the command to start the detection, it will switch and detect automatically. The switching knife can use a four-position linkage mechanism, and there is no need to switch without power failure.

[0033] The central processing module is a single chip microcomputer, and its model is STC89C51.

[0034] The background analysis module includes a judgment unit, a number marking unit and a data marking unit.

[0035] The judging unit is used to judge whether the storage battery is qualified, the number marking unit is used to mark the number of unqualified storage batteries, and the data marking unit is used to mark the data of each hour of unqualified charging and discharging.

[0036] It also includes an alarm module, a report generation module and a human-computer interaction module, wherein the input end of the alarm module is connected to the output end of the background analysis module, the input end of the report generation module is connected to the output end of the central processing module, the output end of the report generation module is connected to the input end of the storage module, and the output end of the human-computer interaction module is connected to the input end of the central processing module.

[0037] The alarm module is used to promptly alarm and notify professional technicians to make judgments and handle the situation if the battery capacity is insufficient and the discharge time is less than 8 hours during the discharge process.

[0038] The alarm module includes a communication unit that can realize a remote transmission function and remotely transmit the alarm notification to professional technicians. The communication unit is one of 4G, 5G or Bluetooth.

[0039] The report generation module automatically generates a report after all tests are completed, and transmits it to the storage module for storage.

[0040] The human-computer interaction module is used to perform human-computer interaction operations and realize data interaction between the human-computer interaction module and the central processing module. The display unit of the human-computer interaction module is a liquid crystal display module of model HG1286402C.

[0041] Compared with the related art, the battery online automatic verification charging and discharging performance detection system provided by the present invention has the following beneficial effects:

[0042] The present invention can solve the problem that the battery pack needs to be shut down and the charge and discharge test must be carried out after the whole pack is shut down through online detection. The battery pack does not need to be shut down, and the detection can be carried out at any time. The detection process is fully automatic. Professional and technical personnel only need to monitor and inspect, and there is no need to record data uninterruptedly for 24 hours, and there is no need to adjust the state of the battery pack. The required labor cost is greatly reduced. After the data is generated, it is automatically analyzed, and the number of unqualified batteries and the data of each hour of charging and discharging are marked, and the conclusion is directly given for reference and analysis by professional and technical personnel. The detection data is more reliable and the accuracy of the single-cell detection result is higher.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A battery online automatic verification charging and discharging performance detection system, characterized in that: include: Execution module, battery pack, data acquisition module, central processing module, background analysis module and storage module; The output end of the execution module is connected to the input end of the battery pack, the output end of the battery pack is connected to the input end of the data acquisition module, the output end of the data acquisition module is connected to the input end of the central processing module, the central processing module is bidirectionally connected to the background analysis module, and the output end of the background analysis module is connected to the input end of the storage module.

2. The battery online automatic verification charging and discharging performance detection system according to claim 1 is characterized in that: The execution module is used to convert the battery pack from an operating state to a charging and discharging state, the data acquisition module is used to collect the current, voltage and internal resistance of the battery pack, the central processing module is used for centralized processing and transmission of collected data, the background analysis module is used to analyze the data collected by the data acquisition module and automatically determine whether it is qualified or not, and the storage module is used to store data.

3. The battery online automatic verification charging and discharging performance detection system according to claim 1 is characterized in that: The central processing module is a single chip microcomputer, and its model is STC89C51.

4. The battery online automatic verification charging and discharging performance detection system according to claim 1 is characterized in that: The background analysis module includes a judgment unit, a number marking unit and a data marking unit.

5. The battery online automatic verification charging and discharging performance detection system according to claim 4 is characterized in that: The judging unit is used to judge whether the storage battery is qualified, the number marking unit is used to mark the number of unqualified storage batteries, and the data marking unit is used to mark the data of each hour of unqualified charging and discharging.

6. The battery online automatic verification charging and discharging performance detection system according to claim 1 is characterized in that: It also includes an alarm module, a report generation module and a human-computer interaction module, wherein the input end of the alarm module is connected to the output end of the background analysis module, the input end of the report generation module is connected to the output end of the central processing module, the output end of the report generation module is connected to the input end of the storage module, and the output end of the human-computer interaction module is connected to the input end of the central processing module.

7. The battery online automatic verification charging and discharging performance detection system according to claim 6 is characterized in that: The alarm module is used to promptly alarm and notify professional technicians to make judgments and handle the situation if the battery capacity is insufficient and the discharge time is less than 8 hours during the discharge process.

8. The battery online automatic verification charging and discharging performance detection system according to claim 7 is characterized in that: The alarm module includes a communication unit that can realize a remote transmission function and remotely transmit the alarm notification to professional technicians. The communication unit is one of 4G, 5G or Bluetooth.

9. The battery online automatic verification charging and discharging performance detection system according to claim 6 is characterized in that: The report generation module automatically generates a report after all tests are completed, and transmits it to the storage module for storage.

10. The battery online automatic verification charging and discharging performance detection system according to claim 6, characterized in that: The human-computer interaction module is used to perform human-computer interaction operations and realize data interaction between the human-computer interaction module and the central processing module. The display unit of the human-computer interaction module is a liquid crystal display module of model HG1286402C.

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