CN204030640U - Batteries novel maintenance monitoring intelligent device - Google Patents
Batteries novel maintenance monitoring intelligent device Download PDFInfo
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- CN204030640U CN204030640U CN201420256250.7U CN201420256250U CN204030640U CN 204030640 U CN204030640 U CN 204030640U CN 201420256250 U CN201420256250 U CN 201420256250U CN 204030640 U CN204030640 U CN 204030640U
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Abstract
本实用新型涉及蓄电池组运维监控技术领域,具体涉及一种蓄电池组远程运维监控智能装置,包括内阻测试单元、电压采集单元和温度采集单元,内阻采集单元、电压采集单元和温度采集单元分别通过串口通信电路与控制单元CPU相连接,蓄电池组通过充电开关连接充电机,通过放电开关连接恒流放电负载,充电开关和放电开关分别通过开关检测电路连接控制单元CPU,开关控制电路与控制单元CPU相连,控制单元CPU通过TCP/IP网络数据传输系统连接远程PC机。本实用新型改变了现场运维模式,实现了蓄电池组的远程监控,节省人力,提高工作效率,保证蓄电池组的正常工作运行。
The utility model relates to the technical field of battery pack operation and maintenance monitoring, in particular to an intelligent device for remote operation and maintenance monitoring of battery packs, comprising an internal resistance test unit, a voltage acquisition unit and a temperature acquisition unit, an internal resistance acquisition unit, a voltage acquisition unit and a temperature acquisition unit The units are respectively connected to the control unit CPU through the serial port communication circuit, the battery pack is connected to the charger through the charging switch, and the constant current discharge load is connected through the discharge switch, the charging switch and the discharge switch are respectively connected to the control unit CPU through the switch detection circuit, and the switch control circuit and The control unit CPU is connected, and the control unit CPU is connected to the remote PC through the TCP/IP network data transmission system. The utility model changes the on-site operation and maintenance mode, realizes the remote monitoring of the battery pack, saves manpower, improves work efficiency, and ensures the normal operation of the battery pack.
Description
技术领域 technical field
本实用新型涉及蓄电池组运维监控技术领域,具体涉及一种蓄电池组远程运维监控智能装置。 The utility model relates to the technical field of battery pack operation and maintenance monitoring, in particular to an intelligent device for remote operation and maintenance monitoring of battery packs. the
背景技术 Background technique
电网公司近几年的规模,无论在售电量还是在变电站数量、规模的建设都得到了迅猛发展并且变电站无人值班化、自动化、智能化发展很快。而变电站蓄电池的巡检、定期核对性充放电和状态检修疲于应对,往往每年不好完成相关规定要完成的指标。 In recent years, the scale of power grid companies, whether in electricity sales or in the construction of the number and scale of substations, has developed rapidly, and the unattended, automated, and intelligent substations have developed rapidly. However, substation battery inspections, regular checking charging and discharging, and condition maintenance are exhausting, and it is often difficult to complete the indicators required by relevant regulations every year. the
造成蓄电池运行维护不够的主要原因有: The main reasons for insufficient battery operation and maintenance are:
蓄电池现有监测控制技术无法满足远程监控及运维的需要。蓄电池单体电压及蓄电池组端电压虽然已经实现在线监测,但仅凭电压测试的方法很难发现蓄电池自身的不良运行状况及内阻增大等事故隐患。 The existing monitoring and control technology of batteries cannot meet the needs of remote monitoring and operation and maintenance. Although the battery cell voltage and the battery pack terminal voltage have been monitored online, it is difficult to find out the potential accidents such as the poor operation of the battery itself and the increase in internal resistance by only using the voltage test method. the
对蓄电池状态数据的监测不能满足状态检修发展的需要。调度自动化系统侧重于对变电站设备运行状态的监控,其功能定位决定其只关心设备的运行、异常两种状态,设备本身劣化过程的监测不在其功能范围内。 The monitoring of battery state data cannot meet the needs of condition-based maintenance development. The dispatching automation system focuses on the monitoring of the operation status of substation equipment. Its functional positioning determines that it only cares about the operation and abnormal status of the equipment. The monitoring of the degradation process of the equipment itself is not within its functional scope. the
蓄电池固有的现场运维模式无法满足专业发展的需要。譬如对于蓄电池充放电试验,以一组蓄电池充放电试验5天、一个变电站2组蓄电池、一次试验5人,要完成全部蓄电池的充放电试验,其工作量是相当大的。最近十几年,直流电源的技术发展,只是在站端设备方面,相控型充电装置逐步被高频开关电源所取代,在智能监测与远程控制技术方面没有任何发展。 The inherent on-site operation and maintenance mode of batteries cannot meet the needs of professional development. For example, for the battery charge and discharge test, a battery charge and discharge test for 5 days, a substation with 2 sets of batteries, and 5 people for a test, to complete the charge and discharge test of all batteries, the workload is quite large. In the past ten years, the technical development of DC power supply has only been in terms of station equipment, phase-controlled charging devices have been gradually replaced by high-frequency switching power supplies, and there has been no development in intelligent monitoring and remote control technology. the
蓄电池现有运维技术不满足反措要求。按照《国家电网公司十八项电网重大反事故措施》的规定,在原有对蓄电池进行定期核对性放电的基础上,每个月要对蓄电池组进行巡检,记录单体电池的电压数据,运维工作量成倍增加,客观上要求必须使用一些高效的自动化装置代替人工工作。 The existing operation and maintenance technology of the battery does not meet the requirements of countermeasures. In accordance with the provisions of the "Eighteen Major Power Grid Anti-Accident Measures of the State Grid Corporation", on the basis of the original regular checking discharge of the battery, the battery pack should be inspected every month, and the voltage data of the single battery should be recorded. The maintenance workload has doubled, objectively requiring the use of some efficient automation devices to replace manual work. the
实用新型内容 Utility model content
为解决上述技术问题中的不足,本实用新型的目的在于:提供一种蓄电池组远程运维监控智能装置,改变现场运维模式,实现蓄电池组的远程监控,节省人力,提高工作效率。 In order to solve the deficiencies in the above technical problems, the purpose of this utility model is to provide an intelligent device for remote operation and maintenance monitoring of battery packs, which can change the on-site operation and maintenance mode, realize remote monitoring of battery packs, save manpower, and improve work efficiency. the
本实用新型为解决其技术问题所采用的技术方案为: The technical scheme that the utility model adopts for solving its technical problem is:
所述蓄电池组远程运维监控智能装置,包括内阻测试单元、电压采集单元和温度采集单元,母线联络开关连接两段母线,内阻采集单元通过内阻测试线与蓄电池组连接,电压采集 单元通过电压采集线与蓄电池组连接,内阻采集单元、电压采集单元和温度采集单元分别通过串口通信电路与控制单元CPU相连接,蓄电池组通过充电开关连接充电机,通过放电开关连接恒流放电负载,母线投切开关连接母线和充电开关,充电开关、放电开关、母线联络开关和母线投切开关分别通过开关检测电路连接控制单元CPU,开关控制电路与控制单元CPU相连,控制单元CPU通过TCP/IP网络数据传输系统连接远程PC机。 The smart device for remote operation and maintenance monitoring of the battery pack includes an internal resistance testing unit, a voltage acquisition unit and a temperature acquisition unit, the bus tie switch is connected to two sections of bus bars, the internal resistance acquisition unit is connected to the battery pack through an internal resistance test line, and the voltage acquisition unit Connect to the battery pack through the voltage acquisition line, the internal resistance acquisition unit, the voltage acquisition unit and the temperature acquisition unit are respectively connected to the control unit CPU through the serial port communication circuit, the battery pack is connected to the charger through the charging switch, and connected to the constant current discharge load through the discharge switch , the bus switch is connected to the bus and the charging switch, the charging switch, the discharge switch, the bus tie switch and the bus switching switch are respectively connected to the control unit CPU through the switch detection circuit, the switch control circuit is connected to the control unit CPU, and the control unit CPU is connected through TCP/ The IP network data transmission system is connected to a remote PC. the
本实用新型分别通过内阻测试单元、温度采集单元和电压采集单元实时采集蓄电池单体内阻、单体温度和蓄电池组端电压及单体电压,并通过串口通信电路将所测数值传送值控制单元CPU,控制单元CPU判断其接收到的数据是否处在正常范围,一旦发现异常数据,则通过TCP/IP网络数据传输系统向远程PC机发送报警信息,报告异常项,同时,控制单元CPU连接报警装置,进行现场报警。 The utility model respectively collects the internal resistance of the storage battery monomer, the temperature of the battery cell, the terminal voltage of the storage battery group and the voltage of the battery cell in real time through the internal resistance test unit, the temperature acquisition unit and the voltage acquisition unit, and transmits the measured values to the value control unit through the serial port communication circuit. CPU, the control unit CPU judges whether the data it receives is within the normal range. Once abnormal data is found, it sends an alarm message to the remote PC through the TCP/IP network data transmission system and reports the abnormal item. At the same time, the control unit CPU connects to the alarm Device, on-site alarm. the
本实用新型还设有开关检测电路和开关控制电路,可以对母线、母联、充电装置、放电装置的开关进行远程操作,开关检测电路检测各个开关的开闭状态并将检测到的状态信息传送给控制单元CPU,在通过TCP/IP网络数据传输系统传送至远程PC机,并通过远程PC机显示器进行显示,放电时,远程PC机通过TCP/IP网络数据传输系统控制控制单元CPU,再由控制单元CPU通过开关控制电路闭合放电开关,恒流放电负载实现蓄电池组的恒流放电,控制单元CPU实时检测蓄电池组剩余电量,放电结束后,通过开关控制电路闭合充电开关,接通充电装置开始充电。 The utility model is also provided with a switch detection circuit and a switch control circuit, which can remotely operate the switches of the busbar, bus tie, charging device, and discharge device. The switch detection circuit detects the on-off state of each switch and transmits the detected state information The control unit CPU is transmitted to the remote PC through the TCP/IP network data transmission system, and displayed on the remote PC display. When discharging, the remote PC controls the control unit CPU through the TCP/IP network data transmission system, and then the The control unit CPU closes the discharge switch through the switch control circuit, and the constant current discharge load realizes the constant current discharge of the battery pack. The control unit CPU detects the remaining power of the battery pack in real time. After the discharge is completed, close the charging switch through the switch control circuit, and connect the charging device to start Charge. the
优选地,充电监控装置具有液晶显示器、键盘及RS485通信电路,与各个充电模块通过RS485连接,实时监控充电过程中充电装置的运行状态和数据,并控制各个充电模块的开关机,均、浮充转换,设置充电装置均浮充参数,调整输出电压电流,并通过串口与上位机通信。 Preferably, the charging monitoring device has a liquid crystal display, a keyboard and an RS485 communication circuit, and is connected with each charging module through RS485, monitors the operating status and data of the charging device during the charging process in real time, and controls the power on and off of each charging module. Convert, set the floating charging parameters of the charging device, adjust the output voltage and current, and communicate with the host computer through the serial port. the
优选地,所述串口通信电路包括光电隔离电路和RS485电平转换电路,光电隔离电路输出端与RS485电平转换电路输入端相接,RS485电平转换电路输出端与控制单元CPU信号输入端相接,所述光电隔离电路包括光电隔离芯片和隔离电源模块,RS485电平转换电路包括RS485电平转换芯片,RS485转换电路将TTL电平转换为RS485电平,光电隔离电路可以将装置内部电路与外部电路隔开。 Preferably, the serial port communication circuit includes a photoelectric isolation circuit and an RS485 level conversion circuit, the output end of the photoelectric isolation circuit is connected to the input end of the RS485 level conversion circuit, and the output end of the RS485 level conversion circuit is connected to the signal input end of the control unit CPU. Then, the photoelectric isolation circuit includes a photoelectric isolation chip and an isolated power supply module. The RS485 level conversion circuit includes an RS485 level conversion chip. The RS485 conversion circuit converts the TTL level into an RS485 level. isolated from external circuits. the
优选地,所述开关检测电路包括限流电阻、光电隔离电路、上拉电阻排和输入IO口扩展芯片,充电开关通过限流电阻连接两个光电隔离芯片,两个光电隔离芯片的输出端分别连接上拉电阻排和输入IO口扩展芯片,输入IO口扩展芯片连接控制单元CPU的IO数据总线,放电开关、母线联络开关和母线投切开关的连线方式与充电开关相同,上拉电阻排保持信号线电平与控制单元CPU一致,信号输入扩展芯片将开关状态信号输入到控制单元CPU的IO数 据总线,实现开关状态采集。 Preferably, the switch detection circuit includes a current limiting resistor, a photoelectric isolation circuit, a pull-up resistor bank and an input IO port expansion chip, the charging switch is connected to two photoelectric isolation chips through a current limiting resistor, and the output terminals of the two photoelectric isolation chips are respectively Connect the pull-up resistor bank and the input IO port expansion chip. The input IO port expansion chip is connected to the IO data bus of the control unit CPU. Keep the signal line level consistent with the control unit CPU, and the signal input expansion chip inputs the switch state signal to the IO data bus of the control unit CPU to realize switch state acquisition. the
优选地,所述开关控制电路包括锁存电路芯片、达林顿阵列芯片和继电器,锁存电路芯片输入端与控制单元CPU的IO数据总线相连,锁存电路芯片输出端与达林顿阵列芯片输入端相连,达林顿阵列输出端与继电器相连,继电器连接相应开关,锁存电路芯片与控制单元CPU的IO数据总线相连,当控制某个继电器动作时,对应的输出IO置1,继电器吸合,置零继电器断开,从而控制外部开关断开或闭合。 Preferably, the switch control circuit includes a latch circuit chip, a Darlington array chip and a relay, the input end of the latch circuit chip is connected to the IO data bus of the control unit CPU, the output end of the latch circuit chip is connected to the Darlington array chip The input terminal is connected, the Darlington array output terminal is connected to the relay, the relay is connected to the corresponding switch, the latch circuit chip is connected to the IO data bus of the control unit CPU, when a certain relay is controlled to operate, the corresponding output IO is set to 1, and the relay sucks Closed, the zero-setting relay is disconnected, thereby controlling the external switch to be disconnected or closed. the
优选地,所述温度采集单元采用温度传感器,温度传感器压接在蓄电池单体表面,实时采集蓄电池单体表面温度信息,并传送至控制单元CPU。 Preferably, the temperature acquisition unit adopts a temperature sensor, which is crimped on the surface of the battery cell, collects the surface temperature information of the battery cell in real time, and transmits it to the control unit CPU. the
优选地,所述内阻采集单元、电压采集单元和温度采集单元的测试线上分别设有自恢复保险丝,以免发生短路,烧毁模块,保证系统安全运行。 Preferably, the test lines of the internal resistance acquisition unit, the voltage acquisition unit and the temperature acquisition unit are respectively provided with self-recovery fuses to prevent short circuits from burning out the modules and ensure safe operation of the system. the
优选地,控制单元CPU采用STC90C58AD单片机,系统可靠稳定,主要单元电路相互隔离,抗干扰性强,实现上述控制单元CPU的检测与控制功能所涉及的软件编程部分均为现有技术,属于本领域技术人员公知常识,控制单元CPU通过TCP/IP网络数据传输系统实现的与远程PC机之间的数据传输,其中所涉及的软件编程部分也属于现有技术,使用过程中无改进。 Preferably, the control unit CPU adopts STC90C58AD single-chip microcomputer, the system is reliable and stable, the main unit circuits are isolated from each other, and the anti-interference is strong. The software programming parts involved in realizing the detection and control functions of the above-mentioned control unit CPU are all existing technologies and belong to this field It is common knowledge of the technicians that the data transmission between the control unit CPU and the remote PC through the TCP/IP network data transmission system, the software programming part involved also belongs to the prior art, and there is no improvement in the use process. the
与现有技术相比,本实用新型具有以下有益效果: Compared with the prior art, the utility model has the following beneficial effects:
本实用新型改变了现场运维模式,实现了蓄电池组的远程监控,节省人力,提高工作效率,内阻测试单元、温度采集单元和电压采集单元实时采集蓄电池单体内阻、单体温度和蓄电池组端电压及单体电压,内阻采集单元、电压采集单元和温度采集单元的采样信号线上分别设有自恢复保险丝,以免发生短路,烧毁模块,保证系统安全运行,通过开关检测电路和开关控制电路实现系统中开关的远程控制,实现蓄电池组充、放电过程的自动切换,保证蓄电池组的正常工作运行。 The utility model changes the on-site operation and maintenance mode, realizes the remote monitoring of the battery pack, saves manpower, and improves work efficiency. The terminal voltage and monomer voltage, internal resistance acquisition unit, voltage acquisition unit and temperature acquisition unit are equipped with self-recovery fuses on the sampling signal lines to avoid short circuit and burn the module to ensure the safe operation of the system. Through the switch detection circuit and switch control The circuit realizes the remote control of the switches in the system, realizes the automatic switching of the charging and discharging process of the battery pack, and ensures the normal operation of the battery pack. the
附图说明 Description of drawings
图1本实用新型结构框图。 Fig. 1 structural block diagram of the utility model. the
图2串口通信电路原理图。 Figure 2 is a schematic diagram of the serial communication circuit. the
图3开关检测电路原理图。 Figure 3 Schematic diagram of switch detection circuit. the
图4开关控制电路原理图。 Figure 4 is a schematic diagram of the switch control circuit. the
具体实施方式 Detailed ways
下面结合附图对本实用新型实施例做进一步描述: Below in conjunction with accompanying drawing, the utility model embodiment is further described:
如图1所示,所述蓄电池组远程运维监控智能装置,包括内阻测试单元、电压采集单元和温度采集单元,包括内阻测试单元、电压采集单元和温度采集单元,母线联络开关连接两 段母线,内阻采集单元通过内阻测试线与蓄电池组连接,电压采集单元通过电压采集线与蓄电池组连接,内阻采集单元、电压采集单元和温度采集单元分别通过串口通信电路与控制单元CPU相连接,蓄电池组通过充电开关连接充电机,通过放电开关连接恒流放电负载,母线投切开关连接母线和充电开关,充电开关、放电开关、母线联络开关和母线投切开关分别通过开关检测电路连接控制单元CPU,开关控制电路与控制单元CPU相连,控制单元CPU通过TCP/IP网络数据传输系统连接远程PC机。 As shown in Figure 1, the smart device for remote operation and maintenance monitoring of the battery pack includes an internal resistance test unit, a voltage acquisition unit, and a temperature acquisition unit, including an internal resistance test unit, a voltage acquisition unit, and a temperature acquisition unit. The section bus, the internal resistance acquisition unit is connected to the battery pack through the internal resistance test line, the voltage acquisition unit is connected to the battery pack through the voltage acquisition line, the internal resistance acquisition unit, the voltage acquisition unit and the temperature acquisition unit are respectively connected to the control unit CPU through the serial port communication circuit The battery pack is connected to the charger through the charging switch, and the constant current discharge load is connected through the discharge switch. The control unit CPU is connected, the switch control circuit is connected with the control unit CPU, and the control unit CPU is connected to the remote PC through the TCP/IP network data transmission system. the
如图2所示,所述串口通信电路包括光电隔离电路和RS485电平转换电路,光电隔离电路输出端与RS485电平转换电路输入端相接,RS485电平转换电路输出端与控制单元CPU信号输入端相接,所述光电隔离电路包括光电隔离芯片和隔离电源模块,RS485电平转换电路包括RS485电平转换芯片U1,RS485转换电路将TTL电平转换为RS485电平,U2-U4为光电隔离芯片,分别与电压采集单元、内阻测试单元和温度采集单元相连,U2、U3、U4和隔离电源模块U5构成光电隔离电路,将装置内部电路与外部电路隔开,R1-R6为上拉电阻,使信号线电平与控制单元CPU保持一致,R7、R8为限流电阻,与TVS管V1、V2共同构成U1的保护电路,电阻R9为匹配电阻,保证RS485通信线路的阻抗匹配。 As shown in Figure 2, the serial port communication circuit includes a photoelectric isolation circuit and an RS485 level conversion circuit, the output end of the photoelectric isolation circuit is connected to the input end of the RS485 level conversion circuit, and the output end of the RS485 level conversion circuit is connected to the control unit CPU signal The input terminals are connected, the photoelectric isolation circuit includes a photoelectric isolation chip and an isolated power supply module, the RS485 level conversion circuit includes an RS485 level conversion chip U1, the RS485 conversion circuit converts the TTL level into an RS485 level, and U2-U4 are photoelectric The isolation chip is connected to the voltage acquisition unit, internal resistance test unit and temperature acquisition unit respectively. U2, U3, U4 and the isolated power supply module U5 form a photoelectric isolation circuit, which separates the internal circuit of the device from the external circuit. R1-R6 are pull-up Resistors to keep the signal line level consistent with the control unit CPU, R7 and R8 are current limiting resistors, which together with TVS tubes V1 and V2 constitute the protection circuit of U1, and resistor R9 is a matching resistor to ensure the impedance matching of the RS485 communication line. the
如图3所示,开关检测电路包括多个子单元,子单元个数与系统中开关总量相同,每个子单元包括限流电阻R9-R16、光电隔离电路、上拉电阻排RP1和输入IO口扩展芯片U8,以充电开关为例,充电开关J1通过限流电阻连接两个光电隔离芯片U6、U7,两个光电隔离芯片的输出端分别连接上拉电阻排RP1和输入IO口扩展芯片U8,输入IO口扩展芯片U8连接控制单元CPU的IO数据总线,放电开关、母线联络开关、母线投切开关的连线方式与充电开关相同,上拉电阻排RP1保持信号线电平与控制单元CPU一致,信号输入扩展芯片将开关状态信号输入到控制单元CPU的IO数据总线,实现开关状态采集。 As shown in Figure 3, the switch detection circuit includes multiple subunits, the number of subunits is the same as the total number of switches in the system, each subunit includes current limiting resistors R9-R16, photoelectric isolation circuit, pull-up resistor bank RP1 and input IO port The expansion chip U8, taking the charging switch as an example, the charging switch J1 is connected to two photoelectric isolation chips U6 and U7 through a current limiting resistor, and the output terminals of the two photoelectric isolation chips are respectively connected to the pull-up resistor row RP1 and the input IO port expansion chip U8, The input IO port expansion chip U8 is connected to the IO data bus of the control unit CPU. The connection mode of the discharge switch, bus tie switch, and bus switching switch is the same as that of the charging switch. The pull-up resistor row RP1 keeps the signal line level consistent with the control unit CPU , the signal input expansion chip inputs the switch state signal to the IO data bus of the control unit CPU to realize the switch state acquisition. the
如图4所示,开关控制电路包括锁存电路芯片D1、达林顿阵列芯片D2和继电器,继电器的个数与系统中开关总量相同,锁存电路芯片D1输入端与控制单元CPU的IO数据总线相连,锁存电路芯片D1输出端与达林顿阵列芯片D2输入端相连,达林顿阵列芯片D2输出端与继电器相连,继电器连接相应开关,锁存电路芯片与控制单元CPU的IO数据总线相连,当控制某个继电器动作时,对应的输出IO置1,继电器吸合,置零继电器断开,从而控制外部开关断开或闭合。 As shown in Figure 4, the switch control circuit includes a latch circuit chip D1, a Darlington array chip D2, and relays. The number of relays is the same as the total number of switches in the system. The data bus is connected, the output terminal of the latch circuit chip D1 is connected to the input terminal of the Darlington array chip D2, the output terminal of the Darlington array chip D2 is connected to the relay, and the relay is connected to the corresponding switch, and the IO data of the latch circuit chip and the control unit CPU The bus is connected. When controlling the action of a certain relay, the corresponding output IO is set to 1, the relay is turned on, and the zero-setting relay is turned off, thereby controlling the opening or closing of the external switch. the
其中,控制单元CPU连接充电监控装置,充电监控装置具有液晶显示器、键盘及RS485通信电路,与各个充电模块通过RS485连接,实时监控充电过程中充电装置的运行状态和数据,并控制各个充电模块的开关机,均、浮充转换,设置充电装置均浮充参数,调整输出电压电流,并通过串口与上位机通信;温度采集单元采用温度传感器,温度传感器压接在蓄电 池单体表面,实时采集蓄电池单体表面温度信息,并传送至控制单元CPU;内阻采集单元、电压采集单元和温度采集单元的测试线上分别设有自恢复保险丝,以免发生短路,烧毁模块,保证系统安全运行。 Among them, the control unit CPU is connected to the charging monitoring device. The charging monitoring device has a liquid crystal display, a keyboard and an RS485 communication circuit, and is connected to each charging module through RS485 to monitor the operating status and data of the charging device during the charging process in real time, and control the operation of each charging module. Switching on and off, switching between equalization and floating charging, setting the parameters of equalizing and floating charging of the charging device, adjusting the output voltage and current, and communicating with the host computer through the serial port; The surface temperature information of the battery cell is collected and sent to the control unit CPU; the test lines of the internal resistance collection unit, the voltage collection unit and the temperature collection unit are respectively equipped with self-recovery fuses to avoid short circuits and burn out modules to ensure safe operation of the system. the
本实用新型分别通过内阻测试单元、温度采集单元和电压采集单元采集蓄电池单体内阻、单体温度和蓄电池组端电压及单体电压,并通过串口通信电路将所测数值传送值控制单元CPU,控制单元CPU判断其接收到的数据是否处在正常范围,一旦发现异常数据,则通过TCP/IP网络数据传输系统向远程PC机发送报警信息,报告异常项,同时,控制单元CPU连接报警装置,进行现场报警。 The utility model respectively collects the internal resistance of the battery monomer, the temperature of the battery, the terminal voltage of the battery group and the voltage of the battery through the internal resistance test unit, the temperature acquisition unit and the voltage acquisition unit, and transmits the measured values to the control unit CPU through the serial port communication circuit. , the control unit CPU judges whether the data it receives is in the normal range. Once abnormal data is found, it sends an alarm message to the remote PC through the TCP/IP network data transmission system to report the abnormal items. At the same time, the control unit CPU connects to the alarm device , make an on-site alarm. the
本实用新型还设有开关检测电路和开关控制电路,可以对母线、母联、充电装置、放电装置的开关进行远程操作,开关检测电路检测各个开关的开闭状态并将检测到的状态信息传送给控制单元CPU,在通过TCP/IP网络数据传输系统传送至远程PC机,并通过远程PC机显示器进行显示,放电时,远程PC机通过TCP/IP网络数据传输系统控制控制单元CPU,再由控制单元CPU通过开关控制电路闭合放电开关,恒流放电负载实现蓄电池组的恒流放电,控制单元CPU实时检测蓄电池组剩余电量,放电结束后,通过开关控制电路闭合充电开关,接通充电装置开始充电。 The utility model is also provided with a switch detection circuit and a switch control circuit, which can remotely operate the switches of the busbar, bus tie, charging device, and discharge device. The switch detection circuit detects the on-off state of each switch and transmits the detected state information The control unit CPU is transmitted to the remote PC through the TCP/IP network data transmission system, and displayed on the remote PC display. When discharging, the remote PC controls the control unit CPU through the TCP/IP network data transmission system, and then the The control unit CPU closes the discharge switch through the switch control circuit, and the constant current discharge load realizes the constant current discharge of the battery pack. The control unit CPU detects the remaining power of the battery pack in real time. After discharging, close the charging switch through the switch control circuit, and connect the charging device to start Charge. the
控制单元CPU采用STC90C58AD单片机,系统可靠稳定,主要单元电路相互隔离,抗干扰性强,实现上述控制单元CPU的检测与控制功能所涉及的软件编程部分均为现有技术,属于本领域技术人员公知常识,控制单元CPU通过TCP/IP网络数据传输系统实现的与远程PC机之间的数据传输,其中所涉及的软件编程部分也属于现有技术,使用过程中无改进。 The control unit CPU adopts STC90C58AD single-chip microcomputer, the system is reliable and stable, the main unit circuits are isolated from each other, and the anti-interference is strong. The software programming parts involved in realizing the detection and control functions of the above-mentioned control unit CPU are all existing technologies, which belong to those skilled in the art. Common sense, the data transmission between the control unit CPU and the remote PC through the TCP/IP network data transmission system, the software programming part involved also belongs to the prior art, and there is no improvement in the use process. the
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CN104571058A (en) * | 2015-01-22 | 2015-04-29 | 汪福利 | Remote online intelligent monitoring system for storage batteries |
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