CN202453481U - On-line monitoring system for storage battery capacity - Google Patents

On-line monitoring system for storage battery capacity Download PDF

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Publication number
CN202453481U
CN202453481U CN2012200952097U CN201220095209U CN202453481U CN 202453481 U CN202453481 U CN 202453481U CN 2012200952097 U CN2012200952097 U CN 2012200952097U CN 201220095209 U CN201220095209 U CN 201220095209U CN 202453481 U CN202453481 U CN 202453481U
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CN
China
Prior art keywords
test
battery
receiver
accumulator
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012200952097U
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Chinese (zh)
Inventor
李波
高鹏宇
郭湛林
赵应龙
王伟
曾建斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGZHOU PREFECT SERVICE ELECTRONIC TECHNOLOGY Co Ltd
Wuzhou Operation Maintenance Bureau Guangxi Grid Co ltd
Original Assignee
GUANGZHOU PREFECT SERVICE ELECTRONIC TECHNOLOGY Co Ltd
Wuzhou Operation Maintenance Bureau Guangxi Grid Co ltd
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Priority to CN2012200952097U priority Critical patent/CN202453481U/en
Application granted granted Critical
Publication of CN202453481U publication Critical patent/CN202453481U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to an on-line monitoring system for storage battery capacity. The on-line monitoring system comprises a test transmission module, a battery voltage, temperature and current test module, a receiver, a server and a client side, wherein the test transmission module contains a special capacity test line and an electronic voltage and temperature test line and meanwhile can transmit out a test result through a wireless network communication technology; the test transmission module is communicated with the receiver, and the receiver is used for obtaining test data from the test transmission module and transmitting the obtained data to the server through an Ethernet or a serial port; and a storage battery management system based on a network is used for managing, early warming and reporting the health status of a storage battery, and a user can log in at any place to know the storage battery information. The guarantee degree of a back-up power supply system can be increased, the service life of the storage battery is prolonged, the operating cost is saved, and a reliable effective management method can be provided for the storage battery management system. Meanwhile, a risk of interruption of power supply caused by power outage is minimized.

Description

The accumulator capacity on-line monitoring system
Technical field
The utility model relates to the battery technology field, specifically is a kind of accumulator capacity on-line monitoring system.
Background technology
Accumulator for electrical secondary system load in its various important system provides safety, stable, reliable guarantee, is guaranteed the normal operation of relay protection, communication facilities as the back-up source of communication electric system.Therefore, the stability of accumulator has crucial meaning with the actual capacity that in discharge process, can offer load to the safe operation of guaranteeing visual plants such as communicating by letter.Along with the fast development of communication and electric system, in the maintenance of traditional accumulator, need more human and material resources and financial resources.Therefore; Under the prerequisite that guarantees power supply reliability; Explore advanced overhaul management pattern, reduce excessively maintenance, effectively reduce production and operation cost; The technology platform of building satisfied communication of a cover and the special operational management demand of electric system industry and demand for development, advanced person combines with ripe application scheme, international trade management mechanism combines with the management mode of suitable China's actual conditions, high-performance; High reliability, friendly interface are attractive in appearance, the accumulator capacity on-line monitoring infosystem of simple operation, ease-of-use and high efficiency, enable directly perceived, science, reflect the information data of accumulator accurately and real-time, for the maintenance management of accumulator provides decision-making foundation; Strengthen economic benefit and improve the modern management level, thereby promote the digital Construction level of transformer station comprehensively.
Summary of the invention
The purpose of the utility model is the problem and shortage to above-mentioned existence; A kind of battery monitor system is provided; Adopt prerun, patrol and examine, various ways such as on-line monitoring is with aggressive mode maintenance free cell; Realize the transformation of transformer station direct current system plant maintenance pattern from the scheduled overhaul to the repair based on condition of component, can satisfy the requirement of battery service specialty.
The utility model is achieved through following technical scheme: the accumulator capacity on-line monitoring system; Comprise test transport module, battery voltage test module, temperature test module, testing current module, receiver, server and client; At each battery post position; The test transport module has comprised proprietary volume test circuit, voltage and temperature Electronic Testing circuit; Can test result be transferred out through the wireless networking mechanics of communication simultaneously; This test transport module and receiver communicate, and the effect of receiver is to obtain test data from the test transport module, and the data of obtaining are transferred to server through Ethernet or serial ports; Again through battery management system specialty, based on network to accumulator health status manage, early warning and report, the user can land in any place and understand accumulator information.
Above-mentioned test transport module is furnished with 6 wires, connects with the binding of Kelvin's connected mode, is respectively applied for monitoring battery tension, capacity, temperature, connection strap internal resistance.
For fear of cause measurement result inaccurate because of the p-wire internal resistance, signal source is separated with sample line, promptly adopts four-wire method to test.
The volume test implementation procedure is following: when beginning that accumulator carried out volume test; Tester injects the voltage signal of a given frequency to tested accumulator; And the current signal that this voltage signal of synchronization produces on accumulator sampled; After accomplishing the sampling process in a plurality of cycles continuously, processor calls inner DSP program and carries out signal amplitude analysis and phase analysis, and calculates tested battery capacity value.
Since with the accumulator capacity correlation parameter be very small signal, in order to obtain test result accurately, must resist at test process and do anti-processing.Interference source possibly also possibly be that test circuit itself produces from the outside; Outside: as to be attached to charging or load circuit above the online battery, AC bus connector, radio frequency interference or the like; Inner: the interference that the test cable produces.Interference possibly occur with different forms: dynamic load or radio frequency (RF) once in a while disturb in the online environment, might produce transient state noise at random; The radiation that conduction AC ripple that charging circuit produces or electric wire produce exchanges noise, might cause periodically noise.
Anti-interference process: one, through the periodic ac test signals; It is carried out filtering gets digital signal processing and can effectively solve all kinds of interference: according to analysis; When apply one-period sexual intercourse stream signal at the accumulator two ends after; The current signal that is produced by this signal is for have the periodic signal of same frequency with it, according to these characteristics, just can be at an easy rate the undesired signal of it and other be made a distinction through filtering and digital signal processing.The accumulator capacity related parameter values is relevant with the phase differential of the current signal that the voltage signal and this voltage signal that apply above that produce; If can accurately not calculate this phase differential; Then can't calculate the capability value of tested battery, adopt sinusoidal wave cyclical signal to be very beneficial for analyzing.Two, classification hardware filtering.On hardware designs, voltage sample has adopted the multiple-stage filtering amplifying circuit, effectively raises signal to noise ratio.The multiple-stage filtering amplifying circuit comprises original high-pass filtering amplifying circuit and LPF amplifying circuit.
The accumulator testing data that said battery management system uses through to daily servicing the time long-range capacity monitor system to be obtained are stored, are analyzed and manage; Make battery service work efficient more, reliable and comprehensive; It selects following dual mode: select to use server to connect through standard ethernet for first kind and exchange, can easily obtain the data result of system anywhere at any time apace; Second kind of selection is to use an independently PC, can obtain data through Ethernet, or directly obtains data through the serial ports connection from receiver, and database software is put data in order and reported.
Various ways such as the utility model accumulator capacity online monitoring system adopts prerun, patrols and examines, on-line monitoring are with aggressive mode maintenance free cell; Realize the transformation of transformer station direct current system plant maintenance pattern from the scheduled overhaul to the repair based on condition of component; Can satisfy the requirement of battery service specialty, its function is following:
1, the on-line monitoring that continues: information is timely, effective, accurate, strengthens analyzing, predicting, the accuracy of raising governing plan is guaranteed battery system safety.
2, comprehensive monitoring accumulator capacity, monomer temperature, voltage etc. and the closely-related parameters of battery health situation intuitively show with forms such as form, curve, histograms.
3, test signal is definitely understood the health status of system to each battery cell.
4, system can carry out remote real-time access and operation basically in Internet technology and large database.Under the situation of the speed of assurance, adopt the B/S mode, the network calculations technology based on the advanced person adopts the distributed treatment pattern.Support mobile office.Select OO large-scale relevant database for use, manage concentratedly.Can the remote website situation of effective monitoring.
5, strict control of authority possesses the multiple safety practice of user and data.Accomplish that each operator operates in strict accordance with the authority of being distributed, and each operation has good grounds clear definiton of powers.The mode of secure digital certificate is adopted in the internet safe authentication; Core data is encrypted storage and is transmitted.
The discharge performance of 6, overall monitor charging and discharging currents, and battery.Different according to duty, right
Data are distinguished management.
7, advanced alarm method, can email or mobile phone short messages alarm.
8, carry out the horizontal contrast of electric battery to different websites, manufacturer, model etc., for choosing of accumulator provides reference.
The utility model accumulator capacity on-line monitoring system possesses following advantage:
1, volume test advantage: safe, simple, accurate, perspective.
2, reflect performance and the general level of the health of equipment under working voltage in real time, exactly; In time the operating latency defective of discovering device prevents that sudden accident from taking place, and effectively improves equipment operation level and reliability; Reduce equipment failure rate, significantly reduce sudden accident.
3, the blindness of minimizing equipment power failure test and maintenance, thus minimizing equipment makes plant maintenance science more because of the possibility of maintenance initiating failure, and prolong the equipment operation life-span.
4, significantly reduce power off time and test operation, improve the power supply reliability and the economy of communication and electric system.
5, macroeconomic property: reduce installation cost, reasonably hardware price, simple system maintenance.
6, simple, convenient, efficient mounting means guarantees that operation each time is all reliably errorless.
7, anti-interference is good, the system wireless technical design can with the Wi-Fi Web-compatible, successfully install and use in the place that the Wi-Fi network is being arranged.
Use the utility model can improve the guarantee degree of backup power system; Prolong the serviceable life of accumulator to greatest extent; Practice thrift operation cost, for the battery system management provides reliable and effective management method, the danger of the caused power failure of will cutting off the power supply simultaneously drops to minimum.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the utility model system topological figure;
Fig. 2 is the utility model accumulator capacity on-line monitoring system principle schematic;
Fig. 3 is the utility model test transport module theory diagram;
Fig. 4 is the utility model accumulator capacity on-line monitoring system classification hardware filtering block diagram.
Embodiment
The utility model accumulator capacity on-line monitoring system is made up of three foundations, and figure is as shown in Figure 1 for its system topological, and Fig. 2 is its schematic diagram.The utility model is installed with long-term very easy to use simple.The core of system is the test transport module, and at each battery post position, the test transport module has comprised proprietary volume test circuit, voltage and temperature Electronic Testing circuit etc., can test result be transferred out through wireless mode simultaneously.This test transport module and receiver communicate; The effect of receiver is to obtain test data from the test transport module; And the data of obtaining are transferred out through Ethernet or serial ports; At last, through a database management language battery management system specialty, based on network to accumulator health status manage, early warning and report or the like.The user can land in any place and understand accumulator information.The test transport module is furnished with 6 wires, connects with the binding of Kelvin's connected mode, is respectively applied for monitoring battery tension, capacity, temperature, connection strap internal resistance.For fear of cause measurement result inaccurate because of the p-wire internal resistance, signal source is separated with sample line, promptly adopts four-wire method to test.
The volume test implementation procedure is following: when beginning that accumulator carried out volume test; Tester injects the voltage signal of a given frequency to tested accumulator; And the current signal that this voltage signal of synchronization produces on accumulator sampled; After accomplishing the sampling process in a plurality of cycles continuously, processor calls inner DSP program and carries out signal amplitude analysis and phase analysis, and calculates tested battery capacity value.
Because the parameter of reflection accumulator capacity is very small signal,, must resist dried anti-the processing at test process in order to obtain test result accurately.Interference source possibly also possibly be that test circuit itself produces from the outside; Outside: as to be attached to charging or load circuit above the online battery, AC bus connector, radio frequency interference or the like; Inner: the interference that the test cable produces.Interference possibly occur with different forms: dynamic load or radio frequency (RF) once in a while disturb in the online environment, might produce transient state noise at random; The radiation that conduction AC ripple that charging circuit produces or electric wire produce exchanges noise, might cause periodically noise.
Anti-interference process: one, through the periodic ac test signals; It is carried out filtering gets digital signal processing and can effectively solve all kinds of interference: according to analysis; When apply one-period sexual intercourse stream signal at the accumulator two ends after; The current signal that is produced by this signal is for have the periodic signal of same frequency with it, according to these characteristics, just can be at an easy rate the undesired signal of it and other be made a distinction through filtering and digital signal processing.The parameter of reflection accumulator capacity is relevant with the phase differential of the current signal that applies voltage signal and this voltage signal generation above that; If can accurately not calculate this phase differential; Then can't analyze the capability value of tested battery, adopt sinusoidal wave cyclical signal to be very beneficial for analyzing.Two, classification hardware filtering.On hardware designs, as shown in Figure 4, voltage sample has adopted the multiple-stage filtering amplifying circuit, effectively raises signal to noise ratio.The multiple-stage filtering amplifying circuit comprises original high-pass filtering amplifying circuit and LPF amplifying circuit.
The utility model accumulator capacity on-line monitoring system is applicable under various extreme environments and uses that in harmful or the crowded wireless environment of communicating by letter, the accumulator capacity on-line monitoring system can carry out record, so that the information of accumulator health status accurately to be provided simultaneously.In the practical application; The components and parts of accumulator capacity on-line monitoring system have moved more than 1 year all very stable in the battery rack of 40 batteries with very high switch noise; In addition; Accumulator capacity on-line monitoring system wireless technology when design just can with the Wi-Fi Web-compatible, at present, have a lot of accumulator capacity on-line monitoring systems successfully to install and use in the place that the Wi-Fi network is being arranged.And VTC in the supervisory system (monitoring battery group information) and sensor (monitoring each battery cell) all have protective tube, short-circuit conditions can not occur to guarantee accumulator.
As shown in Figure 3, the test transport module is the core of system, at each battery post position.The test transport module has comprised proprietary volume test circuit, voltage and temperature Electronic Testing circuit etc., can test result be transferred out through the wireless networking mechanics of communication simultaneously.Test transport module and receiver communicate in this system.
Test transport module characteristics: compatibility test 2V and 12V battery; Test circuit adopts ripe measuring technology, battery is not discharged; Be suitable for the low DC power system that disturbs, or use in the system of generation 25-50 Amps RMS electronic interferences; Regularly measure; Only need to connect (need not other wiring) with Kelvin's connected mode at the battery post position; Wireless frequency and receiving trap both-way communication according to ieee standard; By monitored accumulator electric energy (dispense with outer connecting power) is provided, power consumption is extremely low.
Test transport module test parameter and frequency:
1). the monomer capacity
The default survey frequency of accumulator capacity be 3-7 days once, the year number and the actual conditions of battery quality of brand name according to using battery rises to once a day (scope of setting is 1-1024 hour).
2). monomer voltage
Monomer voltage is the battery charging state index, can indicate serious battery failures and charging system fault, under the normal condition its default survey frequency be 4 hours at interval once, per second once (scope of setting is 1-2048 minute) under the discharge condition.
3). the negative terminal monomer temperature
High-temperature is the first cause of deterioration of battery.Measure temperature and can confirm battery catastrophic failure or environment, the control system fault.In addition, the unbalanced problem that is indicating that battery is hidden of the monomer temperature in the discharge process.Therefore, the measurement of negative terminal monomer temperature safeguards that to the monitoring of accumulator significant meaning is arranged.Under the normal condition its default survey frequency be 4 hours at interval once, per second once (scope of setting is 1-2048 minute) under the discharge condition, measurement range is 0-65degrees Celsius.
4). connect resistance between battery
Connecting between battery is the key of power source integral system operational excellence, and the not enough or other problems of moment of torsion possibly cause ability drop or early stage capacitance loss.Its default survey frequency is weekly, rises to once a day (scope of setting is 1-1024 hour), and measuring minimum value is 2 micro Ohms minimum.
The test transport module is installed: this transport module is furnished with 6 wires, connects with the binding of Kelvin's connected mode, is respectively applied for monitoring cell voltage, capacity, temperature, connection strap internal resistance.
Battery voltage, temperature and testing current module (VTC): the VTC module testing obtains system's total voltage (can survey high to 600V), environment temperature, and charging (floating charge)/discharge current value: ambient temperature measurement guarantees that the temperature of accumulator or building environment temperature are in normal level; Voltage measurement makes the user can in time understand the battery discharge capacity situation to discharge current with group.When test result exceeds the pre-set criteria value, send ALM, be in normal level to guarantee system.
Battery voltage, temperature and testing current module testing parameter and frequency: 1). battery voltage (VTC) battery voltage is the battery charging state index, can indicate serious battery failures and charging system fault and discharge process.Under the normal condition its default survey frequency be 4 hours at interval once, per second once (scope of setting is 1-2048 minute) under the discharge condition, measurement range is 20 to 600 volts.
2). battery pack current (VTC): battery pack current can be judged system state and discharge rate.Under the normal condition its default survey frequency be 4 hours at interval once, under the discharge condition per second once (scope of setting is 1-2048 minute) measurement range according to different system, different model and deciding.
3). environment temperature (VTC): environment temperature contrast test, also indicating the integrated environment system problem, the temperature in 2 zones of systematic survey is to increase accuracy.Under the normal condition its default survey frequency be 4 hours at interval once, per second once (scope of setting is 1-2048 minute) under the discharge condition, measurement range is 0-65 degree centigrade.
4). the AC ripple voltage peak: AC ripple voltage also exerts an influence to deterioration of battery, also often indicate to default to 4 hours under the charging system fault normal condition at interval once, under the discharge condition per second once (1-2048 minute) according to system size
Battery voltage, temperature and testing current module are installed: the VTC module is made up of three major parts: power lead, two temperature are gathered cable, current sensor and cable thereof.
Receiver: receiver and this test transport module and battery voltage, temperature and testing current module communicate, and obtain test data, and the data of obtaining are transferred out through Ethernet or serial ports, and be last, arrives battery management system.
The receiver function:
Directly pass through RS232 serial ports output data to PC
TCP/IP Ethernet output (can carry out communication) through the internet
Receiver module receives data from all test transport modules
The receiver specification table
Receiver is installed: receiver is supplied power by mains-supplied or by VTC through 9 V transformers; After correctly connecting power supply and network,, can on PC, move configuration wizard is installed through RS-232 or USB interface; Accomplish the connection setting of each parts, also can accomplish the configuration of network simultaneously.
Setup Wizard has configure hardware, configuration network and three options of maintenance.Can be configured sensor, VTC module, receiver in the configure hardware option, also can increase battery system at this.The configuration network option calls network setup, and the realization receiver is connected with server.Maintenance option is used for adding or configuration component.
The configuration of a kind of embodiment of the utility model:
Transport module: 2V/103 of test
Battery voltage, temperature and testing current module (VTC): 1
Receiver: 1
Server: 1
Server software: 1 cover
Technical specification:
Communication interface:
Ethernet 10 Mbps
RS232 or USB (57.6 kbps)
802.15.4 compatible RF transmission
2.4 GHz wireless frequency
Temperature:
Operating temperature :-10 ℃ ~+65 ℃
Storing temperature :-10 ℃ ~+80 ℃
Protection:
Collector (2 V &, 12 V)
Test load and power source path insurance protection
Polynary switch protection
Power requirement
Through 9 V transformers by mains-supplied
Or supply power by VTC
The VTC power supply
Through 9 V transformers by mains-supplied
Emergent by 48V battery system power supply (< 60 mA)
2 V collector power supplys
By tested powered battery, power consumption is small
12 V collector power supplys
By tested powered battery, power consumption is small
Connection strap is measured
Minimum value 2 micro-ohms
Testing current
2V or 12V collector
The about 5A RMS of measuring current
Voltage tester
2V collector: voltage tester scope: 1.4 V~2.5 V
Precision=+/-10 mV
12V collector: voltage tester scope: 8.7 V~14.7 V
Precision=+/-20 mV
The GND temperature test
Temperature measurement range :-10 ℃ ~+65 ℃
Accuracy :+/-2 ℃
The battery voltage test
42~600 V direct current input ranges
The battery pack current test
Floating charge state: 300 m A~10 A
Charged state: 10~200 A
Discharge condition: 10~200 A
Size
Receiver: 12.9 cm x, 13.3 cm x, 5.7 cm
VTC organizes monitor: 12.9 cm x, 13.3 cm x, 5.7 cm
2 V &, 12 V collectors: 11.3 cm x, 8 cm x, 3.8 cm
The foregoing description is the utility model preferred implementation; But the embodiment of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection domain of the utility model.

Claims (4)

1. accumulator capacity on-line monitoring system; It is characterized in that: comprise test transport module, battery voltage test module, temperature test module, testing current module, receiver, server and client; At each battery post position; The test transport module has comprised proprietary volume test circuit, voltage and temperature Electronic Testing circuit, can test result be transferred out through the wireless networking mechanics of communication simultaneously, and this test transport module and receiver communicate; The effect of receiver is to obtain test data from the test transport module; And the data of obtaining are transferred to server through Ethernet or serial ports, again through battery management system specialty, based on network to accumulator health status manage, early warning and report, the user can land in any place and understand accumulator information.
2. accumulator capacity on-line monitoring system according to claim 1; It is characterized in that: said voltage test module has adopted the multiple-stage filtering amplifying circuit to improve signal to noise ratio, and said multiple-stage filtering amplifying circuit comprises original high-pass filtering amplifying circuit and LPF amplifying circuit.
3. accumulator capacity on-line monitoring system according to claim 1 and 2 is characterized in that: the test transport module is furnished with 6 wires, connects with the binding of Kelvin's connected mode, is respectively applied for monitoring battery tension, capacity, temperature, connection strap internal resistance.
4. accumulator capacity on-line monitoring system according to claim 1; It is characterized in that: the network of said battery management system has two kinds of selection modes: select to use server to connect through standard ethernet and exchange, can obtain the data result of system anywhere at any time, quickly and easily; Or select to use an independently PC, and can obtain data through Ethernet, or directly obtain data from receiver through the serial ports connection, database software is put data in order and is reported.
CN2012200952097U 2012-03-14 2012-03-14 On-line monitoring system for storage battery capacity Expired - Fee Related CN202453481U (en)

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Application Number Priority Date Filing Date Title
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103064027A (en) * 2012-11-12 2013-04-24 陕西省电力公司检修公司 On-line monitoring and maintaining system for 750-volt wireless intelligent storage battery
CN103576096A (en) * 2013-10-09 2014-02-12 广东电网公司电力科学研究院 Real-time assessment method and device for residual capacity of power battery of electric automobile
CN104599191A (en) * 2015-01-10 2015-05-06 国家电网公司 Smart phone-based transformer station storage battery status cloud service monitoring system and method
CN104597400A (en) * 2013-11-01 2015-05-06 董玮 Intelligent informatization detection and management method and system for accumulator
CN104699043A (en) * 2015-02-06 2015-06-10 无锡雨德智能物联网科技有限公司 Online storage battery monitoring system
CN107430171A (en) * 2015-03-04 2017-12-01 江森自控科技公司 Battery tester address system and method
CN107656211A (en) * 2017-09-15 2018-02-02 武汉中航传感技术有限责任公司 Batteries monitoring system
CN107677963A (en) * 2017-08-09 2018-02-09 江西山水光电科技股份有限公司 A kind of computer room battery pack early warning system
CN110556918A (en) * 2018-05-31 2019-12-10 中国石油天然气股份有限公司 Transformer substation storage battery monitoring method and system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103064027A (en) * 2012-11-12 2013-04-24 陕西省电力公司检修公司 On-line monitoring and maintaining system for 750-volt wireless intelligent storage battery
CN103064027B (en) * 2012-11-12 2015-07-29 陕西省电力公司检修公司 A kind of 750KV intelligent wireless accumulator on-line monitoring and maintenance system
CN103576096A (en) * 2013-10-09 2014-02-12 广东电网公司电力科学研究院 Real-time assessment method and device for residual capacity of power battery of electric automobile
CN104597400A (en) * 2013-11-01 2015-05-06 董玮 Intelligent informatization detection and management method and system for accumulator
CN104599191A (en) * 2015-01-10 2015-05-06 国家电网公司 Smart phone-based transformer station storage battery status cloud service monitoring system and method
CN104699043A (en) * 2015-02-06 2015-06-10 无锡雨德智能物联网科技有限公司 Online storage battery monitoring system
CN107430171A (en) * 2015-03-04 2017-12-01 江森自控科技公司 Battery tester address system and method
CN107677963A (en) * 2017-08-09 2018-02-09 江西山水光电科技股份有限公司 A kind of computer room battery pack early warning system
CN107656211A (en) * 2017-09-15 2018-02-02 武汉中航传感技术有限责任公司 Batteries monitoring system
CN110556918A (en) * 2018-05-31 2019-12-10 中国石油天然气股份有限公司 Transformer substation storage battery monitoring method and system

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120926

Termination date: 20170314

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