CN101706558B - On-line monitoring system for direct-current power supply and storage battery - Google Patents

On-line monitoring system for direct-current power supply and storage battery Download PDF

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CN101706558B
CN101706558B CN 200910108924 CN200910108924A CN101706558B CN 101706558 B CN101706558 B CN 101706558B CN 200910108924 CN200910108924 CN 200910108924 CN 200910108924 A CN200910108924 A CN 200910108924A CN 101706558 B CN101706558 B CN 101706558B
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battery
signal
voltage
current
cpu
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CN101706558A (en
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王汝钢
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深圳市普禄科智能检测设备有限公司
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Abstract

本发明公开了一种直流电源及蓄电池在线监测系统,所述系统由在线监测仪、监测中心、用户终端、监测网络、管理网络组成;所述在线监测仪由CPU、蓄电池电压内阻测试单元、直流充电机特性测试单元、供电单元、通信单元、输入输出单元、故障报警单元、复位单元、存贮单元组成,实现对现场蓄电池和直流充电机的在线监测并将监测数据通过所述监测网络传送到所述监测中心;所述监测中心是一台大型服务器,接收所述在线监测仪传来的监测数据,并以大型数据库形式对监测数据进行存贮管理;响应所述用户终端的各种命令;接受所述用户终端的命令对安装于现场的所述在线监测仪进行各种控制。 The present invention discloses a DC power supply and battery online monitoring system, said system by a line monitoring device, the monitoring center, the user terminal, network monitoring, network management composition; the line monitor, a CPU, battery voltage resistance test unit, DC charger characteristic test unit, power supply unit, a communication unit, an input output unit, fault alarm unit, the reset unit, memory units, data line monitoring and on-site monitoring of the battery charger and the DC network by transmitting said monitoring to the monitoring center; the monitoring center is a large server, receives the monitoring data transmitted from the monitor line, and in the form of a large database of stored monitoring data management; the user terminal in response to various commands ; accepts commands the user terminal to monitor the line is attached to the site to perform various controls.

Description

一种直流电源及蓄电池在线监测系统技术领域[0001] 本发明涉及一种直流电源及蓄电池在线监测系统,属于检测技术领域。 A direct current power supply and battery Line Monitoring System Technical Field [0001] The present invention relates to a DC power supply and battery online monitoring system, belonging to the technical field of detection. 背景技术[0002] 由蓄电池及直流充电机组成的后备电源系统作为电源系统的重要组成部分,起着储备电能、应付电网异常和特殊工作情况、维持系统正常运转的关键作用,是需要高可靠电能保障领域的最后一道防线。 [0002] back-up power system from a battery charger and the DC component as an important part of the power supply system, plays a reserve power, special power and to cope with the abnormal operation, a key role in maintaining the normal operation of the system, is the need for highly reliable electrical power the last line of defense in the field of protection. 该系统广泛应用于电力、通信、政府机关、金融、证券、保险、广播电视、交通运输、制造、军队、教育、科研、公共设施等行业领域。 The system is widely used in the field of electric power industry, telecommunications, government, finance, securities, insurance, broadcasting, transportation, manufacturing, military, education, scientific research, public facilities and so on. 后备电源系统的稳定性和在放电过程中能提供给负载的实际容量对确保设备的安全运行具有十分重要的意义。 Backup power system stability and actual capacity during discharge can be supplied to the load is very important to ensure the safe operation of equipment. 但是在实际应用中,由于缺乏有效的监测手段,不能及时、准确地掌握后备电源系统的状态,无法消除存在的隐患,在电力供应异常或中断时后备电源系统不能正常投入工作,或工作时间很短就失效,从而造成停电事故,广生重大经济损失的事例屡见不鲜。 However, in practice, due to the lack of effective means of monitoring and can not accurately grasp the state of the backup power system can not eliminate hidden dangers, back-up power system can not be put in the power supply exception or interrupt normal working hours, or working time is short to fail, resulting in power outages, examples of significant economic losses Guangsheng uncommon. [0003] 由于受当前技术诊断水平的制约,对后备电源系统的检测大都采取人工巡检的方式,或只针对蓄电池的功能单一的在线监测方式,存在着很多缺陷:[0004] 1、人工巡检方式的缺陷:(1)安全风险大。 [0003] due to the constraints of the current level of technical diagnostics, the detection of backup power systems mostly adopt manual inspection of the way, or only for battery features a single-line monitoring methods, there are many drawbacks: [0004] 1, artificial Tour defect detection methods: (1) a large security risk. 由于现场条件复杂、空间小、电压高,并且存在易燃及腐蚀性气体,工作人员到现场检测,存在较大的风险。 Because the field conditions are complicated, a small space, a high voltage, and the presence of flammable and corrosive gases, staff to the scene detection, there is a big risk. (2)费时费力,成本高,工作效率低下;(3)无法随时随地掌握现场设备的状况,出现安全隐患时,无法立即得知,往往酿成重大事故,造成重大经济和人员损失。 (2) time-consuming, high cost, low efficiency; (3) can not grasp the status of field devices anytime, anywhere, when security risks, not immediately, often the cause of major accidents, causing heavy economic and human losses. (4)无法实现设备状况的趁势预测。 (4) taking advantage of the situation can not be achieved forecasting equipment. (5)数据量大时,数据管理及各种报表、查询统计较为困难。 (5) When the large amount of data, data management and various reporting, query statistics difficult. [0005] 2、没有用系统的观点来认识问题。 [0005] 2, did not use the system point of view to understand the problem. 实际上,直流系统包含着多个子系统,各个子系统相互影响。 Indeed, DC system comprises a plurality of subsystems, each subsystem interaction. 蓄电池只是其中的一个子系统。 Battery is just one subsystem. 只针对蓄电池的功能单一的检测、监测方式的缺陷:蓄电池是复杂的电化学产品,为保证其正常使用和延长寿命,需要精细的管理和维护。 Only a single detection function for the battery, monitoring the way flaw: battery is complex electrochemical products, in order to ensure its normal use and prolong life, need sophisticated management and maintenance. 很多蓄电池不是用坏的,而是充坏的,其根本原因,是由于充电机的特性较差,特别是稳压精度、稳流精度、纹波电压系数等指标较差,造成蓄电池早期损坏。 Many bad battery is not used, but the bad filling, the root cause, due to the poor characteristics of the charging machine, in particular the regulation accuracy, steady flow indicators of poor accuracy, ripple voltage coefficient, etc., resulting in damage to the battery early. [0006] 因此,为保证后备电源系统的可靠性,需要一种直流电源及蓄电池在线监测系统,对直流电源及蓄电池进行综合监测。 [0006] Therefore, to ensure the reliability of the backup power system, a need for a DC power supply and online monitoring system of the battery, the DC power supply and battery monitor integrated. 发明内容[0007] 本发明的目的在于:提供一种直流电源及蓄电池在线监测系统,对直流电源及蓄电池进行综合监测,保证后备电源系统的可靠性。 SUMMARY OF THE INVENTION [0007] The object of the present invention is: to provide a DC power supply and online monitoring system of the battery, the battery and DC power source for integrated monitoring, backup power system reliability. [0008] 为了克服上述不足,本发明提供了改善上述不足之最新的直流电源及蓄电池在线监测系统。 [0008] In order to overcome the above disadvantages, the present invention provides the above-described disadvantages improved DC power supply and the latest battery line Monitoring System. 本发明解决其技术问题所采用的方案是:一种直流电源及蓄电池在线监测系统,所述系统由在线监测仪、监测中心、用户终端、监测网络、管理网络组成。 The present invention to solve the technical problem solution is: A direct current power supply and battery online monitoring system, said system by a line monitoring device, the monitoring center, the user terminal, network monitoring, network management components. 所述在线监测仪由CPU、蓄电池电压内阻测试单元、直流充电机特性测试单元、供电单元、通信单元、输入输出单元、故障报警单元、复位单元、存贮单元组成,实现对现场蓄电池和直流充电机的在线监测并将监测数据通过所述监测网络传送到所述监测中心。 The line monitor a CPU, battery voltage resistance test unit, the test unit characteristics DC charger, power supply unit, a communication unit, an input output unit, fault alarm unit, the reset unit, memory units, batteries and DC for onsite charger line monitoring and monitoring data to the monitoring center via the monitoring network. 所述监测中心是一台大型服务器,运行着数据库应用管理软件,接收所述在线监测仪传来的监测数据,并以大型数据库形式对监测数据进行存贮管理;响应所述用户终端的各种命令,以网页的形式经由所述管理网络向所述用户终端传送数据;接所述受用户终端的命令对安装于现场的所述在线监测仪进行各种控制。 The monitoring center is a large server, running the database management software application receives the monitoring data transmitted from the monitor line, and in the form of a large database of stored monitoring data management; the user terminal in response to various command, in the form of a web page to the user terminal transmits data via said management network; command to the receiving user terminal connected to the line attached to the field monitor performs various controls. 所述用户终端是多台个人计算机,通过浏览器访问所述监测中心并发布各种访问控制命令,接收所述监测中心传来的网页数据,实现对现场的蓄电池和直流充电机的在线监测。 The user terminal is a plurality of personal computers, access to the monitoring center via the browser access and release a variety of control commands, the monitoring center receives the transmitted Web page data, line monitoring and on-site DC battery charger. 监测网络、管理网络实现在线监测仪、监测中心、用户终端之间的相互通信。 Monitoring network, the management network line monitoring device, the monitoring center intercommunication between the user terminal. [0009] 优选的,所述蓄电池电压内阻测试单元由CPU、大功率MOS管、耦合电容、运算放大器、多路开关、可编程带通滤波器、低通滤波器、模数转换器A/D、数模转换器D/A等组成;大功率MOS管串联在蓄电池放电检测回路中,由CPU控制大功率MOS管使蓄电池放电以产生设定频率的正弦波交流激励电流信号,在蓄电池正负极柱上感应出相应的交流电压信号;CPU控制模数转换器A/D采样交流电流信号的同时,还控制多路开关及模数转换器A/D采样蓄电池正负极柱间的交流电压;交流电流信号和交流电压信号经所述耦合电容去除直流分量,由所述运算放大器将信号放大,再经所述可编程带通滤波器去除干扰信号后送入模数转换器A/D变为数字信号;CPU控制模数转换器A/D高速采样,并将所有采样数据送入所述CPU进行数字信号处理,CPU再进一步计算电流、电压信号的实部、虚 [0009] Preferably, the battery voltage resistance test unit by a CPU, power MOS transistors, the coupling capacitors, operational amplifiers, multiplexers, programmable band pass filter, a low pass filter, analog to digital converter A / D, digital to analog converter D / a and other components; power MOS transistor connected in series in the battery discharge detection circuit, a power MOS transistor controlled by the CPU so that the battery discharge current to produce a sine wave signal alternating excitation frequency is set, the battery positive column corresponding to the negative induced AC voltage signal; the CPU controls analog to digital converter a / D sampling AC current signal at the same time, also controls the multiplexer and analog to digital converter a / D sampling alternating between positive and negative battery posts voltage; AC current and AC voltage signal via the coupling capacitor DC component removed signal from the operational amplifier amplifies the signal, and then the rear of the programmable bandpass filter removes the interference signal into the analog to digital converter A / D into a digital signal; CPU controls analog to digital converter a / D high-speed sampling, and sampling data into all the digital signal processing performed by the CPU, then CPU further calculates the real part of the current, the voltage signal and the imaginary 部、相位、有效值等参数,最终得出蓄电池的内阻。 Unit, phase, and other parameters RMS, the internal resistance of the battery ultimately obtained. [0010] 优选的,所述蓄电池电压内阻测试单元由CPU、大功率MOS管、耦合电容、运算放大器、多路开关、可编程带通滤波器、低通滤波器、模数转换器A/D、数模转换器D/A等组成;大功率MOS管串联在蓄电池放电检测回路中,由CPU控制大功率MOS管使蓄电池放电以产生设定频率的正弦波交流激励电流信号,在蓄电池间的连线上也感应出相应的交流电压信号;CPU控制模数转换器A/D采样交流电流信号的同时,还控制多路开关及模数转换器A/D采样蓄电池间的连线上的交流电压;交流电流信号和交流电压信号经所述耦合电容去除直流分量,由所述运算放大器将信号放大,再经所述可编程带通滤波器去除干扰信号后送入模数转换器A/D变为数字信号;CPU控制模数转换器A/D高速采样,并将所有采样数据送入所述CPU进行数字信号处理,CPU再进一步计算电流、电压信号的实部、 [0010] Preferably, the battery voltage resistance test unit by a CPU, power MOS transistors, the coupling capacitors, operational amplifiers, multiplexers, programmable band pass filter, a low pass filter, analog to digital converter A / D, digital to analog converter D / a and other components; power MOS transistor connected in series in the battery discharge detection circuit, a power MOS transistor controlled by the CPU so that the battery discharge current to produce a sine wave signal alternating excitation frequency setting, between the battery the traces induced on the corresponding AC voltage signal; the CPU controls analog to digital converter a / D sampling AC current signal at the same time, also controls the connection between the multiplexer and the analog to digital converter a / D sampling the battery AC voltage; AC current and AC voltage signal via the coupling capacitor DC component removed signal from the operational amplifier amplifies the signal, and then by removing the programmable bandpass filter is fed after interference signal analog to digital converter A / D into a digital signal; CPU controls analog to digital converter a / D high-speed sampling, and all of the sampled data into digital signal processing performed by the CPU, then CPU unit further calculates the real current, a voltage signal, 部、相位、有效值等参数,最终得出蓄电池间的连线电阻。 Unit, phase, and other parameters RMS, obtained final wiring resistance between the secondary battery. [0011] 优选的,每节蓄电池的电压信号经运算放大器放大,经低通滤波器去除干扰信号,再经过模数转换器A/D变为数字信号,之后送入CPU,测量出每节蓄电池的电压(直流分量)O[0012] 优选的,由CPU控制所述多路开关,可以顺序检测蓄电池组中每节蓄电池的内阻、蓄电池间的连线电阻、蓄电池电压;采用交流放电法测量蓄电池的内阻及蓄电池间的连线电阻,测量信号频率可以避开充电机纹波频率及其他干扰信号频率,并不受直流信号的影响,可以实现在蓄电池充放电过程中在线监测蓄电池的内阻、电压、及连线电阻;采用了可编程带通滤波器对电流信号和电压信号进行滤波,以适应不同测量频率下干扰信号的处理。 [0011] Preferably, each section of the battery voltage signal by the operational amplifier, low-pass filter removes interfering signals, and then through the analog to digital converter A / D into a digital signal, then fed to the CPU, each section of the battery measured voltage (DC component) O [0012] preferably, the CPU controls the switch by a multiplexer, the battery pack may detect the internal resistance of each section in the order of the battery, the connection resistance between the batteries, battery voltage; measured using AC discharge method the wiring resistance, the resistance between the frequency of the measurement signal of the battery charger and battery can avoid the interference, and other frequency ripple signal frequency, is not affected by the DC signal, the line monitoring the battery during charging and discharging of the battery can be achieved resistance, voltage, and the wiring resistance; bandpass filter that utilizes a programmable current and voltage signals are filtered in order to accommodate the processing of the interference signal measured at different frequencies. [0013] 优选的,所述直流充电机特性测试单元由主CPU、从CPU、运算放大器、数模转换器D/A、高速同步模数转换器A/D、多路开关、低通滤波器等组成;所述主CPU为LPC2468芯片,完成控制、显示、通信等功能;所述从CPU为DSP芯片,接收高速同步模数转换器传送来的数字信号,进行高速数据运算和处理;所述高速同步模数转换器采用了一片THS1206高速同步模数转换器A/D,精度为12位,采样速率为6MSPS,可支持4路信号的高速同步采样。 [0013] Preferably, the DC charger characteristics of the CPU by the main test unit, from the CPU, operational amplifiers, digital to analog converter D / A, high-speed synchronous digital converter A / D, multiple switch, a low pass filter etc; LPC2468 chip as the main CPU, for control, display, communications and other functions; from the CPU to the DSP chip, high-speed synchronous digital converter receives a digital signal is transmitted, and high-speed data processing operation; the using a high-speed synchronous digital converter THS1206 high-speed synchronous digital converter a / D, 12-bit accuracy, the sampling rate is 6MSPS, 4 can support high-speed synchronous sampling signals. [0014] 优选的,蓄电池组电压的测量:主CPU根据蓄电池组电压测量信号的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的蓄电池组电压测量信号相减,再经低通滤波和放大器放大,送入高速同步模数转换器A/D变为数字信号;SCPU控制高速同步模数转换器A/D高速采样数千个值,送入从CPU (DSP)进行数学处理,取均值后作为蓄电池组电压测量值;蓄电池组充放电电流的测量:主CPU根据蓄电池组充放电电流测量信号的大小自动控制数模转换器D/A输入一个基准信号,同经霍尔电流传感器测得的蓄电池组充放电电流测量信号相减,再经低通滤波和放大器放大,送入高速同步模数转换器A/D变为数字信号;主CPU通过控制多路开关从而自动调节放大器的放大倍数;主CPU控制高速同步模数转换器A/D高速采样数千个值,送入从CPU (DSP)进行数学处理,取均值后作 [0014] Preferably, the measured battery voltage: a main CPU input reference signal in accordance with the size of the automatic control digital to analog converter D battery voltage measurement signal / A, the battery pack voltage measurement signal with the attenuated subtraction circuit, low pass filtered and then amplified by an amplifier into the high-speed synchronous digital converter A / D into a digital signal; the SCPU controlling high-speed synchronous digital converter A / D value of thousands of high-speed sampling, fed from the CPU (DSP) mathematical treatment, after averaging a battery voltage measurement; measuring the battery charge and discharge currents: a main CPU according to the charging and discharging battery current measurement signal the magnitude of the automatic control digital to analog converter D / a input a reference signal, via the same battery current sensor of the charge-discharge current measured by subtracting the signals measured, and then the low-pass filter and amplifier, into high-speed synchronous digital converter a / D into a digital signal; main CPU by controlling the switch so that the multiplexer automatically adjusting the amplification of the amplifier; main CPU control high-speed synchronous digital converter a / D value of thousands of high-speed sampling, into mathematically processed from CPU (the DSP), made after averaging 为蓄电池组充放电电流测量信号的测量值。 For the battery charge and discharge current measured values ​​of the measuring signal. [0015] 优选的,充电机稳压精度的测量:主CPU根据测量电压的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的电压测量信号相减,再经低通滤波和放大器放大,送入高速同步模数转换器A/D变为数字信号;主CPU控制高速同步模数转换器A/D高速采样,送入从CPU进行数字运算处理而计算出充电机的稳压精度;充电机稳流精度的测量:主CPU根据充电机电流测量信号的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的充电机电流测量信号相减,再经低通滤波和放大器放大,送入高速同步模数转换器A/D变为数字信号。 [0015] Preferably, the measuring accuracy charger regulator: main CPU input a reference signal according to the size of automatic control measurement of the voltage digital-analog converter D / A, with the voltage measurement signal through subtraction attenuation circuit, then by low pass filter and amplifier, into high-speed synchronous digital converter A / D into a digital signal; main CPU control high-speed synchronous digital converter A / D high-speed sampling, into the digital arithmetic processing from the CPU calculates the charger regulation accuracy; charger steady flow measurement accuracy: a main CPU input reference signal according to the size of automatic control digital to analog converter D charger current measurement signal / a, charger current measurement signal with the attenuated subtraction circuit , and then low-pass filtered amplifier, into high-speed synchronous digital converter A / D into a digital signal. 主CPU控制高速同步模数转换器A/D高速采样,送入从CPU进行数字运算处理而计算出充电机的稳流精度。 The main control CPU speed synchronous digital converter A / D sampling high speed, is calculated into charger steady flow accuracy digital processing is performed by the CPU. 充电机纹波电压系数的测量:主CPU根据测量电压的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的电压测量信号相减,再经放大器放大,送入高速同步模数转换器A/D变为数字信号;主CPU通过控制多路开关从而自动调节放大器的放大倍数;主CPU控制高速同步模数转换器A/D高速采样,送入从CPU进行数字运算处理而计算出充电机的纹波电压系数;充电模块均流不平衡度的测量:霍尔电流传感器测量得的电流信号经运算放大器和模数转换器A/D变为数字信号送入主CPU ;主CPU控制多路开关可以顺序检测I号至8号充电模块的输出电流,充电模块均流不平衡度的计算方法:β = [(1-1p)/IN] X 100%,式中β:均流不平衡度;1:实测模块输出电流的极限值;IP:N个工作模块输出电流的平均值;IN-模块的额定电流值。 Measuring the charging voltage of the ripple coefficient machine: main CPU automatic control input according to the size of the measured voltage digital to analog converter D / A a reference signal, a voltage measurement signal with the attenuated subtraction circuit, and then amplified by an amplifier, into a high speed synchronous digital converter a / D into a digital signal; main CPU to automatically adjust the amplification of the amplifier by controlling a multiplex switch; main control CPU speed synchronous digital converter a / D high-speed sampling, into digital operation from the CPU processing coefficients calculated ripple voltage of the charger; charging modules imbalance of flow measurement: the Hall current sensor measures the current signal obtained by the operational amplifier and an analog a / D into a digital signal into the main CPU ; main CPU controls the multiplexer switch may detect an output current I, a charging module 8 to the order, charging modules imbalance of flow calculated: β = [(1-1p) / iN] X 100%, where beta] : average flow imbalance; 1: Found module limits an output current; IP: N working modules average output current; IN- module rated current value. [0016] 优选的,其特征在于:所述直流充电机特性测试单元设有电流触发阀值,准确地判断并记录下充电机蓄电池组从正常的浮充状态一发生停电后蓄电池放电状态一来电后自动转入恒流限压充电状态一电压达到设定值后自动转入恒压限流充电状态一电流减小到设定值时自动转入到正常的浮充状态这样一个完整的充放电循环过程,并计算出充电机在浮充工作状态、恒压限流工作状态下的稳压精度、纹波电压系数;计算出充电机在恒流限压工作状态下的稳流精度及充电模块均流不平衡度,并将这些充电机性能指标传送给主CPU。 [0016] Preferably, wherein: the DC charger unit is provided with characteristics of the test current trigger threshold accurately determine and record the battery charger from the normal state of a floating state of a battery discharge power outage calls after automatically transferred to a constant pressure limiting state of charge when the voltage is automatically transferred automatically transferred to a constant current limiting state of charge current is reduced to a normal set value to a complete floating state such charge and discharge reaches the set value cycle, and calculates the charge state of the working machine in the float, regulation at constant current limiting operation state, the ripple voltage coefficient; calculated charger at constant pressure limiting operating condition and the precision of current charging module average flow imbalance, and transmits the charging machine performance metrics to the main CPU. [0017] 优选的,所述通信单元包括RS232、RS485、USB、LAN接口,可组成监测网络,并可以和放电仪等其他设备进行通信,完成对蓄电池组的核对性容量测试,完整地记录蓄电池在充放电过程中蓄电池组电流、蓄电池组电压、每节蓄电池电压的变化,并生成核容报表;所述复位单元用来给在线监测仪复位;所述存贮单元为SRAM、FLASH、EEPR0M,可以存贮测试数据;所述输入输出单元为LCD、按键、打印机等,实现测量数据的显示及测量指令参数的修改;监测中心通过监测网络实时接收在线监测仪传来的现场监测数据,以数据库的形式进行存贮和记录,并以此数据库为基础,定时或根据操作员命令,生成蓄电池核容报表、蓄电池及充电机月报年报、不同的组合查询统计条件下的查询统计报表等。 [0017] Preferably, said communication unit includes RS232, RS485, USB, LAN interface, monitors the composition of the network, and can communicate with other devices like discharger, to complete the collation of the capacity test of the battery pack, the battery complete record during charge and discharge current, battery voltage, battery voltage variation of each section of the battery pack, and receiving reports nuclei; means used to reset the line monitor reset; the memory cell is SRAM, FLASH, EEPR0M, test data can be stored; said input-output unit LCD, a key, a printer, etc., to achieve a measurement instruction display and modify the measured parameter data; site monitoring the monitoring center receives the data coming from line monitor in real time by monitoring the network to the database in the form of recording and storage, and based on this database, a timing or upon operator command, nuclear generating capacity reports the battery, and the battery charger Monthly report, different combinations of query statements in the query statistics statistical conditions. [0018] 本发明所述的直流电源及蓄电池在线监测系统,采用精密测量技术、信号分析处理技术、网络技术和数据库管理技术,对蓄电池的内阻、电压、电流、温度等参数,对充电机稳压精度、稳流精度、纹波电压系数和充电模块均流不平衡度等特性参数进行监测。 [0018] DC power supply and battery online monitoring system of the present invention, a precision measurement technology, signal analysis processing, database management and network technology, the internal resistance of the battery, voltage, current, temperature and other parameters, the charging machine regulation accuracy, steady flow accuracy, ripple voltage and charge coefficients modules like flow imbalance parameters monitored. 和传统的蓄电池检测方式相比,具有明显的优点:[0019] 1、将蓄电池组作为直流系统的一个子系统,充分考虑了充电机特性对蓄电池的影响,使对蓄电池的监测和管理上了一个新的台阶,从而提高了整个系统的安全性和可靠性。 And conventional battery testing mode, has obvious advantages: [0019] 1, the battery system as a subsystem of DC, full consideration the effect of the charger on the battery characteristics, the battery so that the monitoring and management of the a new level, thereby improving the safety and reliability of the entire system. [0020] 2、实时监控每一节蓄电池的状态,随时发现几万只蓄电池中的落后的蓄电池并立刻发出报警,提醒维修管理人员及时处理,确保供电系统的安全。 [0020] 2, real-time monitoring of the status of each section of the battery, the battery was found at any of the tens of thousands behind the battery immediately and an alarm to alert maintenance personnel management in time, ensure the safety of the power supply system. [0021] 3、对系统停电放电、来电充电等异常运行情况自动实时监测记录。 [0021] 3, the system power discharge, abnormal operation of the automatic call charge record real-time monitoring and the like. [0022] 4、对放电仪进行控制,不用人工进行复杂的接线的拆线及频繁的检测记录工作,自动完成整个核容放电过程,并自动生成核容报表。 [0022] 4, a discharge device is controlled manually without complex wiring and disconnect frequently detects recording operation, the discharge capacity to automate the entire process of nuclear, nuclear capacity and automatically generate a report. [0023] 5、实时监测蓄电池电流、电压、内阻、温度等参数,当有异常情况发生时,系统自动进行报警,提示维修管理人员及时处理,防止事故的发生,保障电力系统的安全运行。 [0023] 5, real-time monitoring of battery current, voltage, resistance, temperature and other parameters, when an exception occurs, the system automatically alarm, prompting maintenance management personnel in time to prevent accidents, protect the safe operation of the power system. [0024] 6、对每一节蓄电池都建立起了终身档案,并随时对档案进行更新,实现现代化管理、科学管理、精细化管理。 [0024] 6, for each section of the battery have established a lifelong archives and files at any time to update, modernize management, scientific management, fine management. [0025] 7、节省了人力、物力和财力。 [0025] 7, saving manpower, material and financial resources. 附图说明[0026] 下面结合附图对本发明进一步说明:[0027] 附图1是本发明的一种直流电源及蓄电池在线监测系统的系统结构图;[0028] 附图2是本发明的直流电源及蓄电池在线监测系统的在线监测仪的硬件框图;[0029] 附图3是本发明的直流电源及蓄电池在线监测系统的在线监测仪的蓄电池电压内阻测试单元原理图。 BRIEF DESCRIPTION [0026] DRAWINGS The present invention is further described: [0027] FIG. 1 is a system configuration diagram of a DC power source and the battery of the present invention, online monitoring system; [0028] Figure 2 is a DC invention a hardware block diagram of the power line monitor and the line monitoring system battery; [0029] Figure 3 is a line monitor the battery voltage schematic resistance test DC power supply unit according to the present invention and online monitoring system battery. [0030] 附图4是本发明的直流电源及蓄电池在线监测系统的在线监测仪的直流充电机特性测试单元原理图。 [0030] Figure 4 is a line monitor DC charger unit characteristic test diagram of the present invention is a DC power supply and online monitoring system battery. [0031] 附图5是蓄电池在整个放电及充电过程中电压和电流的变化曲线图。 [0031] Figure 5 is a curve illustrating voltage and current of the battery throughout the charging and discharging process. 具体实施方式[0032] 如图1〜5所示的本发明的一种直流电源及蓄电池在线监测系统,所述系统由在线监测仪、监测中心、用户终端、管理网络和监测网络组成。 DETAILED DESCRIPTION [0032] A DC power supply according to the present invention shown in FIG. 1 ~ 5 and line battery monitoring system that monitors the line, the monitoring center, the user terminal, network management and monitoring networks. 所述在线监测仪由CPU、蓄电池电压内阻测试单元、直流充电机特性测试单元、供电单元、通信单元、输入输出单元、故障报警单元、复位单元、存贮单元组成,实现对现场蓄电池和直流充电机的在线监测并将监测数据通过所述监测网络传送到所述监测中心。 The line monitor a CPU, battery voltage resistance test unit, the test unit characteristics DC charger, power supply unit, a communication unit, an input output unit, fault alarm unit, the reset unit, memory units, batteries and DC for onsite charger line monitoring and monitoring data to the monitoring center via the monitoring network. 所述监测中心是一台大型服务器,运行着数据库应用管理软件,接收所述在线监测仪传来的监测数据,并以大型数据库形式对监测数据进行存贮管理;响应所述用户终端经由管理网络发来的各种命令,以网页的形式经由所述管理网络向所述用户终端传送数据;接受所述受用户终端的命令经由监测网络对安装于现场的所述在线监测仪进行各种控制。 The monitoring center is a large server, running the database management software application receives the monitoring data transmitted from the monitor line, and in the form of a large database of stored monitoring data management; a user terminal via a response to the management network sent to the various commands in the form of a web page to the user terminal transmits data via said management network; a user terminal by receiving the command performs various controls on-site installation of the line monitor, via monitoring network. 所述用户终端是多台个人计算机,通过浏览器访问所述监测中心并发布各种访问控制命令,接收所述监测中心传来的网页数据,实现对现场的蓄电池和直流充电机的在线监测。 The user terminal is a plurality of personal computers, access to the monitoring center via the browser access and release a variety of control commands, the monitoring center receives the transmitted Web page data, line monitoring and on-site DC battery charger. 监测网络和管理网络实现在线监测仪、监测中心、用户终端之间的相互通信。 Network monitoring and managing network line monitoring device, the monitoring center intercommunication between the user terminal. [0033] 在线监测仪的蓄电池电压内阻测试单元的作用是测量每节蓄电池的内阻、蓄电池间的连线电阻和每节蓄电池的电压,由CPU、大功率MOS管、耦合电容、运算放大器、多路开关、可编程带通滤波器、低通滤波器、模数转换器A/D、数模转换器D/A等组成。 [0033] The action line monitor the battery voltage resistance test is to measure internal resistance of each cell section of the battery, and the wiring resistance between the battery voltage of each battery, a CPU, power MOS transistors, the coupling capacitor, the operational amplifier , multiplexers, programmable band pass filter, a low pass filter, analog to digital converter A / D, analog converter D / A and other components. 1、每节蓄电池的内阻、蓄电池间的连线电阻的测量:大功率MOS管串联在蓄电池放电检测回路中,由CPU控制大功率MOS管使蓄电池放电以产生设定频率的正弦波交流激励电流信号,由于蓄电池内阻及蓄电池间连接线电阻的存在,激励电流信号将在蓄电池正负极柱上以及蓄电池间的连接线上感应出相应的交流电压信号。 1, each section of the internal resistance of the battery, the resistance measured between the battery connection: power MOS transistor in series with the battery discharge detection circuit, a MOS transistor controlled by the CPU so that the battery discharge power to generate a sine wave alternating current excitation frequency setting current signal, due to the connection line between the resistor and the battery internal resistance of the battery, the positive and negative excitation current signal line is connected between the battery cartridge and the battery in the corresponding induced AC voltage signal. CPU控制模数转换器A/D采样交流电流信号的同时,还控制多路开关及模数转换器A/D采样蓄电池正负极柱间的交流电压和蓄电池连接线上的交流电压。 CPU control analog to digital converter A / D sampling AC current signal at the same time, also controls the multiplexer and analog to digital converter A / D sampling alternating positive and negative battery voltage and the battery voltage of the AC is connected between the column line. 交流电流信号和交流电压信号经所述耦合电容去除直流分量,由所述运算放大器将信号放大,再经所述可编程带通滤波器去除干扰信号后送入模数转换器A/D变为数字信号。 AC current and AC voltage signal via the coupling capacitor DC component removed signal from the operational amplifier amplifies the signal, and then the rear of the programmable bandpass filter removes the interference signal into the analog to digital converter A / D becomes Digital signal. CPU控制模数转换器A/D高速采样4000〜8000次,并将所有采样数据送入所述CPU进行数字信号处理,用数字锁相技术进一步去除谐波干扰信号,只保留与设定频率相同的有效交流信号,以保证在现场蓄电池处于工作状态下如浮充状态、均充状态、停电放电状态等强干扰环境下测量的准确性,CPU再进一步计算电流、电压信号的实部、虚部、相位、有效值等参数,最终得出蓄电池的内阻以及蓄电池间连接线的电阻。 CPU control analog to digital converter A / D 4000~8000 high-speed sampling times, and all the sampling data is fed to the digital signal processing CPU, further removing harmonic interference signals digital technology, leaving only the same frequency set effective communication signal, to ensure that the battery is in the field as floating state operating state, both the charging status of the measurement accuracy, the discharge power status strong interference environment, then the CPU further calculates the real part of the current, the voltage signal and the imaginary part phase, parameters such as effective value, the internal resistance of the battery and eventually come to the resistance between the battery cable. CPU在采样交流电流信号的同时,以巡检的方式分别检测每节蓄电池正负极柱间的交流电压以及蓄电池间的连接线上的交流电压,经过计算最终得出每节蓄电池的内阻以及蓄电池间每根连接线的电阻。 CPU while the alternating current signal is sampled to detect the manner of inspection of each section alternating positive and negative battery voltage, and an AC voltage is connected between the column line between a battery, obtained through calculation of the final section of the battery and the internal resistance of each each resistor connecting lines between the battery. 蓄电池内组及连接线电阻最后送入在线监测仪主机的CPU并进行存贮显示,并经监测网络送入监测中心再进一步送往用户终端。 And a battery connected to the group fed the last line resistance line monitor of the host CPU and the display memory, and sent to the monitoring center via the monitoring network and further to the subscriber terminal. 2、每节蓄电池直流电压的测量:每节蓄电池电压信号经运算放大器和低通滤波器处理后送入模数转换器A/D变为数字信号,CPU控制模数转换器A/D高速采样2000〜4000次,并将所有采样数据送入所述CPU进行数字信号处理,取其平均值作为蓄电池直流电压。 2, each section measuring DC voltage of the battery: the battery voltage signal by each section of the operational amplifier and low pass filter processed into the analog to digital converter A / D into a digital signal, the CPU controls analog to digital converter A / D high-speed sampling 2000~4000 views, and all the sampling data is fed to the digital signal processing CPU, the average value as the DC voltage of the battery. CPU控制多路开关,以巡检的方式分别检测每节蓄电池正负极柱间的直流电压,最终得出每节蓄电池的直流电压。 CPU controls the multiplex switch to detect the inspection way each section between the battery positive and negative DC voltage of the column, the final results of the DC voltage of each battery. 蓄电池的直流电压最后送入在线监测仪主机的CPU并进行存贮显示,并经监测网络送入监测中心再进一步送往用户终端。 Finally, the battery DC voltage into the line monitor of the host CPU and the display memory, and sent to the monitoring center via the monitoring network and further to the subscriber terminal. [0034] 在线监测仪的直流充电机特性测试单元的作用是测量蓄电池组电压、充放电电流、环境温度以及直流充电机特性参数如稳压精度、稳流精度、纹波电压系数、充电模块均流不平衡度等数据,由主CPU(LPC2468)、从CPU(DSP)、运算放大器、数模转换器D/A、高速同步模数转换器A/D、多路开关、低通滤波器等组成。 [0034] Function DC charger characteristic line monitor test cell is to measure battery voltage, charge and discharge current, ambient temperature, and parameters such as DC charger voltage accuracy, steady flow accuracy, the ripple voltage coefficient, charging modules flow imbalance and other data, by the main CPU (LPC2468), the CPU (DSP), an operational amplifier, digital-analog converter D / A, high-speed synchronous digital converter A / D, multiple switch, a low-pass filter composition. 1、蓄电池组电压的测量:主CPU根据蓄电池组电压测量信号的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的蓄电池组电压测量信号相减,再经低通滤波和放大器放大,送入高速同步模数转换器A/D变为数字信号。 1, the battery pack voltage measurement: a main CPU input reference signal in accordance with the size of the automatic control digital to analog converter D battery voltage measurement signal / A, the battery pack voltage measurement signal with the attenuated subtraction circuit, and then low-pass filter and amplifier, into high-speed synchronous digital converter A / D into a digital signal. 由于蓄电池组电压测量信号和电压基准信号相减,后级的运算放大器的放大倍数可以很高,从而提高了蓄电池组电压测量信号的测量精度。 Since the battery voltage measurement signal and the voltage reference signal subtraction, the magnification of the operational amplifier stage can be high, thereby improving the measurement accuracy of the battery voltage measurement signal. 主CPU控制高速同步模数转换器A/D高速采样数千个值,送入从CPU(DSP)进行数学处理,取均值后作为蓄电池组电压测量值。 The main control CPU speed synchronous digital converter A / D value of thousands of high-speed sampling, into mathematically processed from CPU (the DSP), as the averaged voltage measurements of the battery pack. 蓄电池组电压测量值再送入主CPU,最后送入在线监测仪主机的CPU并进行存贮显示,并经监测网络送入监测中心再进一步送往用户终端。 Battery pack voltage measurements retransmission White CPU, and finally into the line monitor of the host CPU and the display memory, and sent to the monitoring center via the monitoring network and further to the subscriber terminal. 2、蓄电池组充放电电流的测量:主CPU根据蓄电池组充放电电流测量信号的大小自动控制数模转换器D/A输入一个基准信号,同经霍尔电流传感器测得的蓄电池组充放电电流测量信号相减,再经低通滤波和放大器放大,送入高速同步模数转换器A/D变为数字信号。 2, the battery charge and discharge current is measured: a main CPU input reference signal according to the battery charge and discharge current size of the signal measured automatically controlled digital to analog converter D / A, with the battery pack measured by the current sensor of the charge-discharge current subtracting the signals measured, and then the low-pass filter and amplifier, into high-speed synchronous digital converter A / D into a digital signal. 由于蓄电池组充放电电流测量信号和电流基准信号相减,后级的运算放大器的放大倍数可以很高,从而提高了蓄电池组充放电电流测量信号的测量精度。 Since the battery charge and discharge current measurement signal and a current reference signal subtraction, the magnification of the operational amplifier stage can be high, thereby improving the measurement accuracy of the battery charge and discharge current measurement signal. 主CPU通过控制多路开关从而自动调节放大器的放大倍数。 The main CPU to automatically adjust the amplification of the amplifier by controlling the multiplexers. 主CPU控制高速同步模数转换器A/D高速采样数千个值,送入从CPU (DSP)进行数学处理,取均值后作为蓄电池组充放电电流测量信号的测量值。 The main control CPU speed synchronous digital converter A / D value of thousands of high-speed sampling, into mathematically processed from CPU (the DSP), as the battery charge and discharge current measurement signal measurement value after averaging. 蓄电池组充放电电流测量信号测量值再送入主CPU,最后送入在线监测仪主机的CPU并进行存贮显示,并经监测网络送入监测中心再进一步送往用户终端。 Battery discharge current measurement signal measurements retransmission White CPU, and finally into the line monitor of the host CPU and the display memory, and sent to the monitoring center via the monitoring network and further to the subscriber terminal. 3、温度的测量:温度传感器测量得的温度信号经运算放大器和模数转换器A/D变为数字信号送入主CPU,最后送入在线监测仪主机的CPU并进行存贮显示,并经监测网络送入监测中心再进一步送往用户终端。 3, measuring temperature: a temperature sensor measuring the temperature signal obtained through the operational amplifier and an analog A / D into a digital signal into the main CPU, and finally into the line monitor of the host CPU and the display memory, and by monitoring network monitoring center fed further to the subscriber terminal. 4、充电机稳压精度的测量:主CPU根据测量电压的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的电压测量信号相减,再经低通滤波和放大器放大,送入高速同步模数转换器A/D变为数字信号。 4, the measurement accuracy charger regulator: main CPU input a reference signal according to the size of automatic control measurement of the voltage digital-analog converter D / A, the voltage measurement signal with the attenuated subtraction circuit, and then the low-pass filter and an amplifier amplifying, into high-speed synchronous digital converter A / D into a digital signal. 由于电压测量值和电压基准值相减,后级的运算放大器的放大倍数可以很高,从而提高了电压信号的测量精度。 Since the voltage measured value and the voltage reference value subtraction, the magnification of the operational amplifier stage can be high, thereby improving the accuracy of the voltage measurement signal. 主CPU控制高速同步模数转换器A/D高速采样数千个值,送入从CPU进行数字运算处理而计算出充电机的稳压精度。 The main control CPU speed synchronous digital converter A / D thousands of high-speed sampling value, calculated into charger voltage precision digital operation processing by the CPU. 稳压精度计算方法:δ u = (Um-Uz)/UzX 100%,其中Su:稳压精度;UM:电压波动极限值;UZ:电压整定值。 Regulation accuracy calculation: δ u = (Um-Uz) / UzX 100%, wherein Su: regulation accuracy; UM: voltage fluctuation limit; UZ: a voltage setting value. 充电机的稳压精度再送入主CPU,最后送入在线监测仪主机的CPU并进行存贮显示,并经监测网络送入监测中心再进一步送往用户终端。 Regulation accuracy charger retransmission White CPU, and finally into the line monitor of the host CPU and the display memory, and sent to the monitoring center via the monitoring network and further to the subscriber terminal. 5、充电机稳流精度的测量:主CPU根据充电机电流测量信号的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的充电机电流测量信号相减,再经低通滤波和放大器放大,送入高速同步模数转换器A/D变为数字信号。 5, charger steady flow measurement accuracy: a main CPU input reference signal according to the size of automatic control digital to analog converter D charger current measurement signal / A, charger current measurement signal with the attenuated subtraction circuit, and then low-pass filter and amplifier, into high-speed synchronous digital converter A / D into a digital signal. 由于充电机电流测量信号和电流基准值相减,后级的运算放大器的放大倍数可以很高,从而提高了充电机电流信号的测量精度。 Since the charger current measurement signal and a current reference value subtraction, the magnification of the operational amplifier stage can be high, thereby improving the measurement accuracy charger current signal. 主CPU通过控制多路开关从而自动调节放大器的放大倍数。 The main CPU to automatically adjust the amplification of the amplifier by controlling the multiplexers. 主CPU控制高速同步模数转换器A/D高速采样数千个值,送入从CPU进行数字运算处理而计算出充电机的稳流精度。 The main control CPU speed synchronous digital converter A / D value of thousands of high-speed sampling, the accuracy of calculated steady flow into the charging machine for digital processing by the CPU. 稳流精度计算方法:Si = (Im-1z)/Iz X 100%,其中S1:稳流精度;Im:电流波动极限值;Iz:电流整定值。 Steady flow accuracy calculated: Si = (Im-1z) / Iz X 100%, where S1: steady flow accuracy; Im: current fluctuation limit; Iz: current setting. 充电机的稳流精度再送入主CPU,最后送入在线监测仪主机的CPU并进行存贮显示,并经监测网络送入监测中心再进一步送往用户终端。 Precision of current retransmission White charger CPU, and finally into the line monitor of the host CPU and the display memory, and sent to the monitoring center via the monitoring network and further to the subscriber terminal. 6、充电机纹波电压系数的测量:主CPU根据测量电压的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的电压测量信号相减,再经放大器放大,送入高速同步模数转换器A/D变为数字信号。 6, the ripple voltage measuring charger coefficient: The size of the main CPU input automatic measurement of the voltage digital-analog converter D / A a reference signal, a voltage measurement signal with the attenuated subtraction circuit, and then amplified by the amplifier, send the high-speed synchronous digital converter A / D into a digital signal. 由于电压测量值和电压基准值相减,后级的运算放大器的放大倍数可以很高,从而提高了电压信号的测量精度。 Since the voltage measured value and the voltage reference value subtraction, the magnification of the operational amplifier stage can be high, thereby improving the accuracy of the voltage measurement signal. 主CPU通过控制多路开关从而自动调节放大器的放大倍数。 The main CPU to automatically adjust the amplification of the amplifier by controlling the multiplexers. 主CPU控制高速同步模数转换器A/D高速采样数千个值,送入从CPU进行数字运算处理而计算出充电机的纹波电压系数。 The main control CPU speed synchronous digital converter A / D value of thousands of high-speed sampling, the ripple voltage coefficient is calculated into charger for digital processing by the CPU. 纹波电压系数计算方法:Spp = Upp/Udc/2X100%,其中δρρ:纹波电压系数;Upp:纹波电压峰-峰值;Udc:直流电压平均值。 Ripple voltage coefficient calculation method: Spp = Upp / Udc / 2X100%, wherein δρρ: ripple voltage coefficient; Upp: ripple voltage peak - peak; Udc: DC voltage average value. 充电机的纹波电压系数再送入主CPU,最后送入在线监测仪主机的CPU并进行存贮显示,并经监测网络送入监测中心再进一步送往用户终端。 Ripple voltage coefficient charger retransmission White CPU, and finally into the line monitor of the host CPU and the display memory, and sent to the monitoring center via the monitoring network and further to the subscriber terminal. 7、充电模块均流不平衡度的测量:霍尔电流传感器测量得的电流信号经运算放大器和模数转换器A/D变为数字信号送入主CPU。 7, the charging modules imbalance of flow measurement: the Hall current sensor measuring the current obtained by the operational amplifier and an analog signal by the A / D into a digital signal into the main CPU. 主CPU控制多路开关可以顺序检测I号至8号充电模块的输出电流,充电模块均流不平衡度的计算方法:β = [(1-1p)/ΙΝ] X 100%,式中β:均流不平衡度;1:实测模块输出电流的极限值;lp:N个工作模块输出电流的平均值;IN:模块的额定电流值。 The main CPU controls the multiplexer switch may detect an output current I, a charging module 8 to the order, charging modules imbalance of flow calculated: β = [(1-1p) / ΙΝ] X 100%, where β: average flow imbalance; 1: Found module limits an output current; lp: N averages operating module output current; the iN: rated current module. 主CPU计算出充电模块均流不平衡度后,送入在线监测仪主机的CPU并进行存贮显示,并经监测网络送入监测中心再进一步送往用户终端。 After charging the main CPU calculates an average flow imbalance module, into the line monitor of the host CPU and the display memory, and sent to the monitoring center via the monitoring network and further to the subscriber terminal. [0035] 所述直流充电机特性测试单元设有电流触发阀值,可以准确地判断并记录下充电机蓄电池组从正常的浮充状态一发生停电后蓄电池放电状态一来电后自动转入恒流限压充电状态一电压达到设定值后自动转入恒压限流充电状态一电流减小到设定值时自动转入到正常的浮充状态这样一个完整的充放电循环过程。 [0035] The DC charger unit is provided with characteristics of the test current trigger threshold to be accurately determined automatically transferred constant after the battery charger and the battery discharge state from the recording of the normal state of a power outage occurs a floating call a voltage limiting state of charge voltage reaches the set value is automatically transferred to the constant pressure limiting automatically transferred to the state of charge current is reduced to a set value of a normal floating state such a complete charge-discharge cycle. 并计算出充电机在浮充工作状态、恒压限流工作状态下的稳压精度、纹波电压系数;计算出充电机在恒流限压工作状态下的稳流精度、充电模块均流不平衡度,并将这些充电机性能指标传送给主CPU。 And calculates the charge state of the working machine in the float, regulation at constant current limiting operation state, the ripple voltage coefficient; calculated steady flow accuracy charger at constant pressure limiting operation state, the charge does not flow modules balance, and transmits the charging machine performance metrics to the main CPU. 最后送入在线监测仪主机的CPU并进行存贮显示,并经监测网络送入监测中心再进一步送往用户终端。 Finally into line monitor of the host CPU and the display memory, and further to the subscriber terminal via the network into the monitoring center monitoring. [0036] 所述在线监测仪的存贮单元为SRAM、FLASH、EEPR0M,可以存贮监测数据。 The [0036] monitor line memory cell is SRAM, FLASH, EEPR0M, monitoring data can be stored. 所述在线监测仪的通信单元为RS232/485、LAN及USB,可以和计算机设备进行通信,实现对蓄电池及充电机的在线监测和档案管理。 The line monitor communication unit RS232 / 485, LAN and USB, and can communicate with computer equipment, line monitoring and file management and battery charger. 所述在线监测仪的输入输出单元为LCD、按键、打印机等,实现监测数据的显示及监测参数的修改。 The line monitor input and output unit LCD, a key, a printer, etc., to achieve the monitoring data, and modify the display of monitored parameters. [0037] 本发明所述的直流电源及蓄电池在线监测系统,采用精密测量技术、信号分析处理技术、网络技术和数据库管理技术,对蓄电池的单体内阻、单体电压、连线电阻、蓄电池组电压、充放电电流、温度等参数,对充电机稳压精度、稳流精度、纹波电压系数、充电模块均流不平衡度等特性参数进行在线监测。 [0037] DC power supply and battery online monitoring system of the present invention, a precision measurement technology, signal analysis processing, database management and network technology, the internal resistance of the battery of the monomer, the cell voltage, the wiring resistance, the battery pack voltage, charge and discharge current, temperature and other parameters, on the charger voltage accuracy, steady flow accuracy, the ripple voltage coefficient, charging modules like flow imbalance parameters online monitoring. 和传统的蓄电池检测方式相比,具有明显的优点:[0038] 1、将蓄电池组作为直流系统的一个子系统,充分考虑了充电机特性对蓄电池的影响,使对蓄电池的监测和管理上了一个新的台阶,从而提高了整个系统的安全性和可靠性。 And conventional battery testing mode, has obvious advantages: [0038] 1, the battery system as a subsystem of DC, full consideration the effect of the charger on the battery characteristics, the battery so that the monitoring and management of the a new level, thereby improving the safety and reliability of the entire system. [0039] 2、实时监控每一节蓄电池的状态,随时发现几万只蓄电池中的落后的蓄电池并立刻发出报警,提醒维修管理人员及时处理,确保供电系统的安全。 [0039] 2, real-time monitoring of the status of each section of the battery, the battery was found at any of the tens of thousands behind the battery immediately and an alarm to alert maintenance personnel management in time, ensure the safety of the power supply system. [0040] 3、对系统停电放电、来电充电等异常运行情况自动实时监测记录。 [0040] 3, the system power discharge, abnormal operation of the automatic call charge record real-time monitoring and the like. [0041] 4、对放电仪进行控制,不用人工进行复杂的接线的拆线及频繁的检测记录工作,自动完成整个核容放电过程,并自动生成核容报表。 [0041] 4, a discharge device is controlled manually without complex wiring and disconnect frequently detects recording operation, the discharge capacity to automate the entire process of nuclear, nuclear capacity and automatically generate a report. [0042] 5、实时监测蓄电池电流、电压、内阻、温度等参数,当有异常情况发生时,系统自动进行报警,提示维修管理人员及时处理,防止事故的发生,保障电力系统的安全运行。 [0042] 5, real-time monitoring of battery current, voltage, resistance, temperature and other parameters, when an exception occurs, the system automatically alarm, prompting maintenance management personnel in time to prevent accidents, protect the safe operation of the power system. [0043] 6、对每一节蓄电池都建立起了终身档案,并随时对档案进行更新,实现现代化管理、科学管理、精细化管理。 [0043] 6, for each section of the battery have established a lifelong archives and files at any time to update, modernize management, scientific management, fine management. [0044] 7、节省了人力、物力和财力。 [0044] 7, saving manpower, material and financial resources. [0045] 直流电源及蓄电池在线监测系统的应用领域极为广泛,可以应用于电力、通信、政府机关、金融、证券、保险、广播电视、交通运输、制造、军队、教育、科研、公共设施等行业领域后备电源系统的在线监测及评估。 [0045] Applications DC power supply and battery-line monitoring system is extremely broad, can be used in electric power, telecommunications, government, finance, securities, insurance, broadcasting, transportation, manufacturing, military, education, scientific research, public utilities and other industries online backup power system monitoring and evaluation of the field. [0046] 上述实施例只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施,并不能以此限制本发明的保护范围,凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围内。 [0046] The embodiment for explaining the technical concept and features of the invention, its object is to only allow those familiar with the art to understand the present invention and implement them, and thus does not limit the scope of the present invention, where an equivalent variations or modifications made from the spirit of the present invention, shall fall within the protection scope of the present invention.

Claims (10)

1.一种直流电源及蓄电池在线监测系统,所述系统由在线监测仪、监测中心、用户终端、监测网络、管理网络组成; 所述在线监测仪由CPU、蓄电池电压内阻测试单元、直流充电机特性测试单元、供电单元、通信单元、输入输出单元、故障报警单元、复位单元、存贮单元组成,用于实现对现场蓄电池和直流充电机的在线监测并将监测数据通过所述监测网络传送到所述监测中心;所述蓄电池电压内阻测试单元用于测量每节蓄电池的内阻、蓄电池间的连线电阻和每节蓄电池的电压;所述直流充电机特性测试单元用于测量蓄电池组电压、充放电电流、环境温度以及直流充电机特性参数,所述直流充电机特性参数包括稳压精度、稳流精度、纹波电压系数、充电模块均流不平衡度数据; 所述监测中心是一台大型服务器,用于接收所述在线监测仪传来的监测数据 1. A direct current power supply and battery online monitoring system, said system by a line monitoring device, the monitoring center, the user terminal, network monitoring, network management composition; the line monitor charged by a CPU, a battery voltage resistance test unit, DC machine characteristic test unit, power supply unit, a communication unit, an input output unit, fault alarm unit, the reset unit, storage units, a data line monitoring and on-site monitoring of the battery charger and the DC network by transmitting said monitoring to the monitoring center; the battery voltage resistance test unit for measuring the internal resistance of the battery for each section, and the wiring resistance between the battery voltage of each battery; the DC charger unit for measuring characteristics of the test battery pack voltage, charge and discharge current, ambient temperature, and DC charger characteristic parameter, said characteristic parameters comprise DC charger voltage accuracy, steady flow accuracy, the coefficient ripple voltage, the charging current sharing imbalance data module; said monitoring center a large server, for receiving monitoring data transmitted from said line monitor ,并以大型数据库形式对监测数据进行存贮管理,并响应所述用户终端的各种命令;接受所述用户终端的命令对安装于现场的所述在线监测仪进行各种控制。 And in the form of a large database of monitored data storage management, and various commands in response to the user terminal; receiving said user command to said terminal line monitoring instrument is attached to the site to perform various controls.
2.根据权利要求1所述的直流电源及蓄电池在线监测系统,其特征在于:所述蓄电池电压内阻测试单元包括CPU、大功率MOS管、耦合电容、运算放大器、多路开关、可编程带通滤波器、低通滤波器、模数转换器A/D、数模转换器D/A ;其中大功率MOS管串联在蓄电池放电检测回路中,并由CPU控制大功率MOS管使蓄电池放电以产生设定频率的正弦波交流激励电流信号,在蓄电池正负极柱上感应出相应的交流电压信号;所述CPU控制模数转换器A/D采样交流电流信号的同时,还控制多路开关及模数转换器A/D采样蓄电池正负极柱间的交流电压;交流电流信号和交流电压信号经所述耦合电容去除直流分量,由所述运算放大器将信号放大,再经所述可编程带通滤波器去除干扰信号后送入模数转换器A/D变为数字信号;CPU控制模数转换器A/D高速采样,并将所有采样数据送入所述CPU进 The DC power supply and said line monitoring system as claimed in claim battery, wherein: the battery voltage resistance test unit including a CPU, power MOS transistors, the coupling capacitors, operational amplifiers, multiplexers, programmable with pass filter, a low pass filter, analog to digital converter A / D, analog converter D / A; wherein the power MOS transistor connected in series in the battery discharge detection circuit, the control by the CPU power MOS transistor to discharge the battery generating the set frequency sine wave alternating current excitation signal, corresponding to the positive and negative AC voltage signal induced in the battery cartridge; said CPU controls analog to digital converter a / D sampling AC current signal at the same time, also controls multiplexer and analog to digital converter a / D sampling the battery voltage between the positive and negative exchange column; AC current and AC voltage signal via the coupling capacitor DC component removed signal from the operational amplifier amplifies the signal, and then by the programmable after the bandpass filter removes the interference signal into the analog to digital converter A / D into a digital signal; CPU controls analog to digital converter A / D high-speed sampling, and the sampled data into all of the CPU proceeds 数字信号处理,由CPU再进一步计算电流、电压信号的实部、虚部、相位、有效值参数,最终得出蓄电池的内阻。 Digital signal processing, and further calculate the current, voltage signals a real part, imaginary part of the phase, the parameter effective value of a CPU, the final results of the internal resistance of the battery.
3.根据权利要求1所述的直流电源及蓄电池在线监测系统,其特征在于:所述蓄电池电压内阻测试单元包括CPU、大功率MOS管、耦合电容、运算放大器、多路开关、可编程带通滤波器、低通滤波器、模数转换器A/D、数模转换器D/A ;所述大功率MOS管串联在蓄电池放电检测回路中,并由CPU控制大功率MOS管使蓄电池放电以产生设定频率的正弦波交流激励电流信号,在蓄电池间的连线上也感应出相应的交流电压信号;所述CPU控制模数转换器A/D采样交流电流信号的同时,还控制多路开关及模数转换器A/D采样蓄电池间的连线上的交流电压;交流电流信号和交流电压信号经所述耦合电容去除直流分量,由所述运算放大器将信号放大,再经所述可编程带通滤波器去除干扰信号后送入模数转换器A/D变为数字信号;CPU控制模数转换器A/D高速采样,并将所有采样数据送入所述CPU进 The DC power supply and said line monitoring system as claimed in claim battery, wherein: the battery voltage resistance test unit including a CPU, power MOS transistors, the coupling capacitors, operational amplifiers, multiplexers, programmable with pass filter, a low pass filter, analog to digital converter A / D, analog converter D / A; the power MOS transistor connected in series in the battery discharge detection circuit by the CPU to control the battery discharge power MOS transistor generate a sine wave alternating current excitation signal frequency set in the connection between the battery also induces a corresponding alternating voltage signal; said CPU controls analog to digital converter a / D sampling AC current signal at the same time, also controls the multi- AC voltage across the switch and the analog to digital converter a passage connection between the battery samples D /; AC current and AC voltage signal via the coupling capacitor DC component removed signal from the operational amplifier amplifies the signal, and then the programmable bandpass filter into the signal after the interference removal analog to digital converter A / D into a digital signal; CPU controls analog to digital converter A / D high-speed sampling, and the sampled data into all of the CPU proceeds 行数字信号处理;所述CPU再进一步计算电流、电压信号的实部、虚部、相位、有效值参数,最终得出蓄电池间的连线电阻。 The digital signal processing line; said CPU further calculates the current real part of the voltage signal, the imaginary part of the phase, the effective value of the parameter, the final results of the wiring resistance between the battery.
4.根据权利要求2或3所述的直流电源及蓄电池在线监测系统,其特征在于:每节蓄电池的电压信号经运算放大器放大,经低通滤波器去除干扰信号,再经过模数转换器A/D变为数字信号,之后送入CPU,测量出每节蓄电池的电压直流分量。 According to claim 2 or 3 and the DC power line monitoring system as claimed in claim battery, wherein: each section of the battery voltage signal by the operational amplifier, low-pass filter removes interfering signals, and then through an analog-A / D into a digital signal, then fed to the CPU, the measured voltage of the DC components of each section of the battery.
5.根据权利要求2或3所述的直流电源及蓄电池在线监测系统,其特征在于:所述蓄电池电压内阻测试单元:由CPU控制所述多路开关,顺序检测蓄电池组中每节蓄电池的内阻、蓄电池间的连线电阻、蓄电池电压;采用交流放电法测量蓄电池的内阻及蓄电池间的连线电阻,测量信号频率可以避开充电机纹波频率及其他干扰信号频率,并不受直流信号的影响,可以实现在蓄电池充放电过程中在线监测蓄电池的内阻、电压、及连线电阻;采用了可编程带通滤波器对电流信号和电压信号进行滤波,以适应不同测量频率下干扰信号的处理。 The DC power source 2 and the battery 3 or the online monitoring system as claimed in claim, wherein: the battery voltage resistance test unit: a CPU for controlling the multiplexer, sequentially detects the battery pack batteries each section resistance, wiring resistance between the batteries, battery voltage; measuring the resistance between the wiring resistance of the battery and battery discharge method AC measurement signal frequency ripple frequency can avoid the charger and other interfering signal frequency, is not subject to influence of the DC signal, may be implemented in the internal resistance of the battery charging and discharging process, voltage, and the wiring resistance line monitoring battery; bandpass filter that utilizes a programmable current and voltage signals are filtered to accommodate different frequency measurement processing a signal interference.
6.根据权利要求1所述的直流电源及蓄电池在线监测系统,其特征在于:所述直流充电机特性测试单元包括主CPU、从CPU、运算放大器、数模转换器D/A、高速同步模数转换器A/D、多路开关、低通滤波器,用于测量直流充电机特性参数;所述直流充电机特性参数包括充电机稳压精度、充电机稳流精度、充电机纹波电压系数和充电模块均流不平衡度; 所述主CPU根据测量电压的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的电压测量信号相减,再经低通滤波和放大器放大,送入高速同步模数转换器A/D变为数字信号,主CPU控制高速同步模数转换器A/D高速采样,送入从CPU进行数字运算处理而计算出充电机的稳压精度; 所述主CPU根据充电机电流测量信号的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的充电机电流测量信号相减, The DC power supply and said line monitoring system as claimed in claim battery, wherein: said DC charger includes a main characteristic of the CPU test unit, from the CPU, operational amplifiers, digital to analog converter D / A, high-speed synchronous mode digital converter A / D, multiple switch, a low pass filter, for measuring characteristic parameters of DC charger; the characteristic parameter comprises a DC charger charger voltage accuracy, precision constant current charger, charger voltage ripple flow coefficient and charge imbalance modules; main CPU of said reference input signal according to a magnitude of automatic control measurement of the voltage digital-analog converter D / a, with the voltage measurement signal through subtraction attenuation circuit, lowpass filtered and then amplifier and fed into high-speed synchronous digital converter a / D into a digital signal, the main CPU controls the high-speed synchronous digital converter a / D high-speed sampling, into the digital arithmetic processing from the CPU calculates the steady charging machine precision pressure; main CPU of said reference input signal according to a digital to analog converter D magnitude automatic charger current measurement signal / a, charger current measurement signal with the attenuated subtraction circuit, 经低通滤波和放大器放大,送入高速同步模数转换器A/D变为数字信号,主CPU控制高速同步模数转换器A/D高速采样,送入从CPU进行数字运算处理而计算出充电机的稳流精度; 所述主CPU根据测量电压的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的电压测量信号相减,再经放大器放大,送入高速同步模数转换器A/D变为数字信号,主CPU通过控制多路开关从而自动调节放大器的放大倍数,主CPU控制高速同步模数转换器A/D高速采样,送入从CPU进行数字运算处理而计算出充电机的纹波电压系数; 霍尔电流传感器测量得的电流信号经运算放大器和模数转换器A/D变为数字信号送入主CPU,主CPU控制多路开关顺序检测I号至8号充电模块的输出电流,充电模块均流不平衡度的计算方法:β=[ (1-1P)/IN]X100%,S* β:均流不平衡度;Ι:实测模块输出电流的极限值 Low pass filtered and amplified by an amplifier into the high-speed synchronous digital converter A / D into a digital signal, the main CPU controls the high-speed synchronous digital converter A / D high-speed sampling, into the digital arithmetic processing from the CPU calculated precision of current charger; main CPU of said control input in accordance with the size of the automatic measurement of the voltage digital-analog converter D / a a reference signal, a voltage measurement signal with the attenuated subtraction circuit, and then amplified by an amplifier, into a high speed synchronous digital converter a / D into a digital signal, the main CPU to automatically adjust the amplification of the amplifier by controlling the multiplexers, the main CPU controls the high-speed synchronous digital converter a / D high-speed sampling, into digital operation from the CPU processing coefficients calculated ripple voltage of the charger; Hall current sensor for measuring current signals obtained through the operational amplifier and an analog a / D into a digital signal into the main CPU, a main CPU controls the multiplex switch sequence detector I No. 8 to the output current charging module, a charging module are flow imbalance is calculated: β = [(1-1P) / iN] X100%, S * β: average flow imbalance; Ι: Found module output current limit IP:N个工作模块输出电流的平均值;IN —模块的额定电流值。 IP: N working modules average output current; IN - rated current module.
7.根据权利要求6所述的直流电源及蓄电池在线监测系统,其特征在于:所述直流充电机特性测试单元设有电流触发阀值,准确地判断并记录下充电机蓄电池组从正常的浮充状态一发生停电后蓄电池放电状态一来电后自动转入恒流限压充电状态一电压达到设定值后自动转入恒压限流充电状态一电流减小到设定值时自动转入到正常的浮充状态这样一个完整的充放电循环过程,并计算出充电机在浮充工作状态、恒压限流工作状态下的稳压精度、纹波电压系数;计算出充电机在恒流限压工作状态下的稳流精度及充电模块均流不平衡度,并将这些充电机性能指标传送给主CPU。 6, 7. The DC power supply and the battery online monitoring system according to claim, characterized in that: said DC charger unit is provided with characteristics of the test current trigger threshold, to accurately determine the battery charger from the normal record and floating automatically transferred to the constant pressure limiting automatically transferred to a state of charge voltage reaches the set value automatically transferred to the constant current limiting state of charge current is reduced to a set value of the battery charge-discharge state after a call state of a power failure has occurred normal floating state such a complete charge-discharge cycle, and calculates the charge state of the working machine in the float, regulation at constant current limiting operation state, the ripple voltage coefficient; calculated charger in the constant current limit precision of current and a charging operating state of the module lower average pressure flow imbalance, and transmits the charging machine performance metrics to the main CPU.
8.根据权利要求6所述的直流电源及蓄电池在线监测系统,其特征在于:所述直流充电机特性测试单元还用于测量蓄电池组电压测量值,所述主CPU根据蓄电池组电压测量信号的大小自动控制数模转换器D/A输入一个基准信号,同经衰减电路后的蓄电池组电压测量信号相减,再经低通滤波和运算放大器放大,送入高速同步模数转换器A/D变为数字信号;主CPU控制高速同步模数转换器A/D高速采样数千个值,送入从CPU进行数学处理,取均值后作为蓄电池组电压测量值。 6, according to the DC power supply and battery online monitoring system as claimed in claim, wherein: said DC charger unit is further characteristic test for measuring the battery voltage measurements, according to the main CPU of the battery pack voltage measurement signal automatic control of the size of digital to analog converter D / a input a reference signal, the battery pack voltage measurement signal with the attenuated subtraction circuit, and then the low-pass filter and an operational amplifier, into high-speed synchronous digital converter a / D into a digital signal; main CPU control high-speed synchronous digital converter A / D value of thousands of high-speed sampling, into the CPU from mathematical treatment, the averaged value as the battery voltage measurement.
9.根据权利要求6所述的直流电源及蓄电池在线监测系统,其特征在于:所述直流充电机特性测试单元还用于测量蓄电池组充放电电流,主CPU根据蓄电池组充放电电流测量信号的大小自动控制数模转换器D/A输入一个基准信号,同经霍尔电流传感器测得的蓄电池组充放电电流测量信号相减,再经低通滤波和运算放大器放大,送入高速同步模数转换器A/D变为数字信号;主CPU通过控制多路开关从而自动调节运算放大器的放大倍数;主CPU控制高速同步模数转换器A/D高速采样数千个值,送入从CPU进行数学处理,取均值后作为蓄电池组充放电电流测量信号的测量值。 9. The DC power of the battery 6, and online monitoring system, characterized in that: said DC charger unit is further characteristic test for measuring battery charge and discharge current, the main CPU charge and discharge current of the battery pack according to the measurement signal automatic control of the size of digital to analog converter D / a input a reference signal, with the battery pack measured by the current sensor measurement signal charge-discharge current subtraction, and then the low-pass filter and an operational amplifier, into high-speed synchronous modulus converters a / D into a digital signal; main CPU to automatically adjust the amplification factor of the operational amplifier by controlling multiplexer; main CPU controls the high-speed synchronous digital converter a / D value of thousands of high-speed sampling, fed from CPU mathematical processing, after averaging a battery charge and discharge current measured values ​​of the measuring signal.
10.根据权利要求1所述的直流电源及蓄电池在线监测系统,其特征在于:所述在线监测仪还包括供电单元、通信单元、输入输出单元、故障报警单元、复位单元以及存贮单元,其中所述通信单元包括RS232、RS485、USB、LAN接口,以组成监测网络,并和放电仪进行通信,完成对蓄电池组的核对性容量测试,完整地记录蓄电池在充放电过程中蓄电池组电流、蓄电池组电压、每节蓄电池电压的变化,并生成核容报表;所述复位单元用来给在线监测仪复位;所述存贮单元为SRAM、FLASH、EEPROM,用于存贮测试数据;所述输入输出单元用于实现测量数据的显示及测量指令参数的修改,其包括为LCD、按键、打印机。 10. The DC power supply and said line monitoring system according to claim battery, wherein: said apparatus further includes a power line monitoring unit, a communication unit, an input output unit, fault alarm unit, the reset unit, and a storage unit, wherein said communication unit includes RS232, RS485, USB, LAN interface to form a network monitor, and the discharge device and to communicate the completion of the verification of the capacity test of the battery pack, a complete record of battery pack current of the battery during charge and discharge, the battery pack voltage, battery voltage variation of each section, and receiving reports nuclei; means used to reset the line monitor reset; the memory cell is SRAM, FLASH, EEPROM, for storing test data; said input an output unit for realizing a measurement instruction to modify the display parameters and measurement data, which including LCD, a key, a printer.
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