CN205263229U - Communication power monitoring devices - Google Patents
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Abstract
本实用新型公开了一种通讯电源监测装置,所述装置包括:模拟采样处理器、A/D转换器、单片机处理系统、键盘输入单元、时钟信号单元、报警器、通讯接口、存储单元、上位机,其中,采用了先进的霍尔采样技术,并设置有模拟比较电路,将信号做前端处理,并输出对应负荷变化的电压值,该电压值又经A/D转换,再把数字信号传送给微电脑做进一步分析处理,并实现故障分析比较、判断、计量、显示、储存和信号远传等功能,并实现远方集控中心能及时得到异常信息,做出安全维护处理,实现了通讯电源监测装置设计合理,能够有效对通讯电源线路进行监测,当出现故障时,能够快速高效的进行报警,有效提高电力通讯系统的安全稳定性的技术效果。
The utility model discloses a communication power supply monitoring device, which comprises: an analog sampling processor, an A/D converter, a single-chip processing system, a keyboard input unit, a clock signal unit, an alarm, a communication interface, a storage unit, an upper Among them, the advanced Hall sampling technology is adopted, and an analog comparison circuit is set, the signal is processed at the front end, and the voltage value corresponding to the load change is output, and the voltage value is converted by A/D, and then the digital signal is transmitted Do further analysis and processing for the microcomputer, and realize functions such as fault analysis and comparison, judgment, measurement, display, storage, and signal remote transmission, and realize that the remote centralized control center can obtain abnormal information in time, make safe maintenance processing, and realize communication power supply monitoring The design of the device is reasonable, and it can effectively monitor the communication power supply line. When a fault occurs, it can quickly and efficiently give an alarm, and effectively improve the technical effect of the safety and stability of the power communication system.
Description
技术领域 technical field
本实用新型涉及通讯设备研究领域,尤其涉及一种通讯电源监测装置。 The utility model relates to the field of communication equipment research, in particular to a communication power monitoring device.
背景技术 Background technique
在发电厂、变电站,有大量的调度命令、运行数据等需要交互传递,要完成这样的交互传递,则离不开48V通讯电源,该通讯电源不论是采用市电降压、整流、滤波、稳压转换而来的线性电源,还是经高频振荡转换而成的开关电源,都有重要性高,造价不菲的特点,同时因负荷重,分支线路多,受到冲击短路和潮湿接地的故障现象时有发生。 In power plants and substations, there are a large number of dispatching commands and operating data that need to be transmitted interactively. To complete such interactive transmission, 48V communication power supply is inseparable. The linear power supply converted from low voltage or the switching power supply converted by high frequency oscillation are both of high importance and high cost. At the same time, due to the heavy load and many branch lines, they are subject to impact short circuit and wet ground fault phenomenon. happens sometimes.
在现有技术中,当出了故障,主要是靠人工拉闸,逐条断电的方式来寻找故障线路,这样既繁琐复杂,又造成正常线路受到牵连影响,很是不妥。 In the prior art, when a fault occurs, it is mainly to rely on manual switching and power off one by one to find faulty lines, which is both cumbersome and complicated, and causes normal lines to be implicated and affected, which is very inappropriate.
综上所述,本实用新型实用新型人在实现本实用新型实施例中实用新型技术方案的过程中,发现上述技术至少存在如下技术问题: To sum up, in the process of implementing the technical solution of the utility model in the embodiment of the utility model, the inventor of the utility model found that the above-mentioned technology has at least the following technical problems:
在现有技术中,现有的通讯电源故障检测方法存在,检测效率较低,容易造成正常线路受到牵连影响的技术问题。 In the prior art, existing communication power supply failure detection methods exist, and the detection efficiency is low, which easily causes technical problems that normal lines are affected by involvement.
实用新型内容 Utility model content
本实用新型提供了一种通讯电源监测装置,解决了现有的通讯电源故障检测方法存在,检测效率较低,容易造成正常线路受到牵连影响的技术问题,实现了通讯电源监测装置设计合理,能够有效对通讯电源线路进行监测,当出现故障时,能够快速高效的进行报警,有效提高电力通讯系统的安全稳定性的技术效果。 The utility model provides a monitoring device for communication power supply, which solves the technical problems that the existing communication power supply failure detection method has low detection efficiency and easily causes normal lines to be affected by involvement, and realizes a reasonable design of the communication power supply monitoring device, which can Effectively monitor the communication power supply line, and when there is a failure, it can quickly and efficiently alarm, effectively improving the technical effect of the safety and stability of the power communication system.
为解决上述技术问题,本实用新型实施例提供了一种通讯电源监测装置,所述装置包括: In order to solve the above technical problems, the embodiment of the utility model provides a communication power monitoring device, which includes:
模拟采样处理器、A/D转换器、单片机处理系统、键盘输入单元、时钟信号单元、报警器、通讯接口、存储单元、上位机,其中,所述模拟采样处理器用于对通讯电源的被测线路进行监测,并获得模拟电压信号;所述A/D转换器用于将获得的模拟电压信号转换为数字信号;所述时钟信号单元用于产生时钟信号;所述键盘输入单元用于输入控制指令;所述单片机处理系统用于当模拟采样处理器与键盘输入单元的双重信号经A/D转换后,进行计算分析和处理判断,其判断处理结果,一路送报警器报警,另一路把信号传送给上位机进行处理,经通讯接口将信号传递到系统网络上供集控中心监管人员查看。 Analog sampling processor, A/D converter, single-chip processing system, keyboard input unit, clock signal unit, alarm, communication interface, storage unit, upper computer, wherein, the analog sampling processor is used for the measured The circuit is monitored to obtain an analog voltage signal; the A/D converter is used to convert the obtained analog voltage signal into a digital signal; the clock signal unit is used to generate a clock signal; the keyboard input unit is used to input control instructions ; The single-chip processing system is used to perform calculation analysis and processing judgment after the double signal of the analog sampling processor and the keyboard input unit is converted by A/D, and it judges the processing result, sends the alarm to the police all the way, and sends the signal to the other road It is processed by the upper computer, and the signal is transmitted to the system network through the communication interface for the supervisory personnel of the centralized control center to view.
其中,所述模拟采样处理器具体包括:交直流电源模块、传感器模块、比较判断模块、模拟输出模块,其中,所述交直流电源模块用于将交流电源整流为直流电源供所述模拟采样处理器使用;所述传感器模块用于采集通讯电源被测线路的电流变化信号,并将采集到的信号传递给比较判断模块;所述比较判断模块根据采集到的信号进行比较,若满足比较规则,则输出电压信号到所述模拟输出模块,所述模拟输出模块根据比较判断模块传递来的信号生成模拟电压信号。 Wherein, the analog sampling processor specifically includes: an AC and DC power supply module, a sensor module, a comparison and judgment module, and an analog output module, wherein the AC and DC power supply module is used to rectify the AC power supply into a DC power supply for the analog sampling process The sensor module is used to collect the current change signal of the measured line of the communication power supply, and transmits the collected signal to the comparison and judgment module; the comparison and judgment module compares the collected signals, and if the comparison rule is satisfied, Then the voltage signal is output to the analog output module, and the analog output module generates an analog voltage signal according to the signal transmitted from the comparison judgment module.
其中,所述交直流电源模块具体为:将220V交流电源从①、②端子引入,经开关K1,保险BX传送给变压器B1降压,B1副边中间抽头,作为公共地;二极管D1—D4完成正、负电源整流;D1、D3输出端并联,接三端正稳压器WY1的输入端1脚,WY1的3脚接公共地,WY1的2脚输出正电源;D2、D4输入端并联,接三端负稳压器WY2的输入端3脚,WY2的1脚接公共地,WY2的2脚输出负电源;电容C1、C2、C3、C4分别作三端稳压器输入、输出的滤波;发光二极管Fg1和电阻R1串联,作工作电源指示。 Wherein, the AC-DC power supply module specifically includes: 220V AC power is introduced from terminals ① and ②, through switch K1, insurance BX is transmitted to transformer B1 for step-down, and the middle tap of the secondary side of B1 is used as a common ground; diodes D1-D4 complete Positive and negative power supply rectification; D1, D3 output terminals connected in parallel, connected to input terminal 1 pin of three-terminal positive voltage regulator WY1, WY1 pin 3 connected to common ground, WY1 pin 2 output positive power supply; D2, D4 input terminals connected in parallel, connected to The three-terminal negative voltage regulator WY2 has input pin 3, WY2 pin 1 is connected to the common ground, and WY2 pin 2 outputs the negative power supply; capacitors C1, C2, C3, and C4 are respectively used as filters for the input and output of the three-terminal voltage regulator; The light emitting diode Fg1 is connected in series with the resistor R1 to indicate the working power.
其中,所述传感器模块具体包括:霍尔电流采样器HR、负载L、模拟电阻Rd1、模拟电阻Rd2,其中,所述霍尔电流采样器包括:底座盘,所述底座盘上放置有传感器,所述传感器和所述底座盘上均设有固定孔,所述传感器中部设有测试孔,被测直流线穿过所述测试孔进行监测,所述传感器上设有正极连接端a,负极连接端b,采样信号输出端c,接地端d;其中,所述霍尔电流采样器HR的正极连接端a与所述交直流电源模块的正极连接,所述霍尔电流采样器HR的负极连接端b与负载L连接后与所述交直流电源模块的负极连接,模拟电阻Rd1和模拟电阻Rd2串联后与所述负载L并联,所述采样信号输出端c与所述比较判断模块连接。 Wherein, the sensor module specifically includes: a Hall current sampler HR, a load L, an analog resistor Rd1, and an analog resistor Rd2, wherein the Hall current sampler includes: a base plate, on which a sensor is placed, Both the sensor and the base plate are provided with fixing holes, the middle part of the sensor is provided with a test hole, the measured DC line passes through the test hole for monitoring, the sensor is provided with a positive terminal a, and a negative terminal is connected to Terminal b, sampling signal output terminal c, and ground terminal d; wherein, the positive terminal a of the Hall current sampler HR is connected to the positive terminal of the AC/DC power supply module, and the negative terminal of the Hall current sampler HR is connected to Terminal b is connected to the negative pole of the AC/DC power supply module after being connected to the load L, the analog resistor Rd1 and the analog resistor Rd2 are connected in parallel to the load L after being connected in series, and the sampling signal output terminal c is connected to the comparison and judgment module.
其中,所述比较判断模块具体为:电阻R2和稳压二极管WY3串联,构成基准电压,并接往反相输入端2脚;电阻R3、R4串联,构成工作点,并接往同相输入端3脚,在同相、反相端并结合集成运放电路形成比较判断模块,所述比较判断模块的输出端与电位器W1连接。 Wherein, the comparison and judgment module is specifically: the resistor R2 is connected in series with the Zener diode WY3 to form a reference voltage, and is connected to the inverting input terminal 2; the resistors R3 and R4 are connected in series to form an operating point, and is connected to the non-inverting input terminal 3 The non-inverting and non-inverting terminals are combined with an integrated operational amplifier circuit to form a comparison and judgment module, and the output terminal of the comparison and judgment module is connected to the potentiometer W1.
其中,所述模拟输出模块的电位器W1的一端与所述比较判断模块的输出端连接,经过电位器的调节,在动触头OUT处对应负荷变化输出电压信号,电位器的另一端与电阻R5串联后接地。 Wherein, one end of the potentiometer W1 of the analog output module is connected to the output end of the comparison judgment module, and through the adjustment of the potentiometer, a voltage signal is output corresponding to the load change at the moving contact OUT, and the other end of the potentiometer is connected to the resistance R5 is connected in series to ground.
本实用新型实施例中提供的一个或多个技术方案,至少具有如下技术效果或优点: One or more technical solutions provided in the embodiments of the utility model have at least the following technical effects or advantages:
由于采用了将通讯电源监测装置设计为包括:模拟采样处理器、A/D转换器、单片机处理系统、键盘输入单元、时钟信号单元、报警器、通讯接口、存储单元、上位机,其中,所述模拟采样处理器用于对通讯电源的被测线路进行监测,并获得模拟电压信号;所述A/D转换器用于将获得的模拟电压信号转换为数字信号;所述时钟信号单元用于产生时钟信号;所述键盘输入单元用于输入控制指令;所述单片机处理系统用于当模拟采样处理器与键盘输入单元的双重信号经A/D转换后,进行计算分析和处理判断,其判断处理结果,一路送报警器报警,另一路把信号传送给上位机进行处理,经通讯接口将信号传递到系统网络上供集控中心监管人员查看的技术方案,即,首先进行分析,正常时,有关仪器表计投入工作,负荷电流相对稳定;当出现故障时,不论是接地还是短路,都会使电流发生变化,并多数为增加,因此重点是对负荷电流进行监测,正常时,装置保持原状,异常时,装置经检测判断并会发出声光信号,向运行人员提供报警信息,以利及时分析处理,减少事故的发生和扩展,采用了先进的霍尔采样技术,并设置有模拟比较电路,将信号做前端处理,并输出对应负荷变化的电压值,该电压值又经A/D转换,再把数字信号传送给微电脑做进一步分析处理,并实现故障分析比较、判断、计量、显示、储存和信号远传等功能,并实现远方集控中心能及时得到异常信息,做出安全维护处理,大幅度提高智能管理水平,所以,有效解决了现有的通讯电源故障检测方法存在,检测效率较低,容易造成正常线路受到牵连影响的技术问题,进而实现了通讯电源监测装置设计合理,能够有效对通讯电源线路进行监测,当出现故障时,能够快速高效的进行报警,有效提高电力通讯系统的安全稳定性的技术效果。 Due to the adoption of the design of the communication power monitoring device to include: an analog sampling processor, an A/D converter, a single-chip processing system, a keyboard input unit, a clock signal unit, an alarm, a communication interface, a storage unit, and a host computer, among them, The analog sampling processor is used to monitor the tested line of the communication power supply and obtain an analog voltage signal; the A/D converter is used to convert the obtained analog voltage signal into a digital signal; the clock signal unit is used to generate a clock signal; the keyboard input unit is used to input control instructions; the single-chip processing system is used to perform calculation analysis and processing judgment after the double signal of the analog sampling processor and the keyboard input unit is converted by A/D, and it judges the processing result , one way sends the alarm to the alarm, the other way transmits the signal to the host computer for processing, and transmits the signal to the system network through the communication interface for the supervisory personnel of the centralized control center to view. When the meter is put into operation, the load current is relatively stable; when a fault occurs, whether it is grounding or short circuit, the current will change, and most of them will increase. Therefore, the focus is on monitoring the load current. When it is normal, the device remains in its original state. , the device will send out sound and light signals after detection and judgment, and provide alarm information to the operating personnel, so as to facilitate timely analysis and processing, reduce the occurrence and expansion of accidents, adopt advanced Hall sampling technology, and set up an analog comparison circuit to compare the signal Do front-end processing, and output the voltage value corresponding to the load change, the voltage value is converted by A/D, and then the digital signal is sent to the microcomputer for further analysis and processing, and realizes fault analysis, comparison, judgment, measurement, display, storage and signal Remote transmission and other functions, and realize that the remote centralized control center can obtain abnormal information in time, make safe maintenance processing, and greatly improve the level of intelligent management. Therefore, it effectively solves the existing communication power failure detection methods, and the detection efficiency is low. Technical problems that are likely to cause normal lines to be affected by involvement, and then realize the reasonable design of the communication power monitoring device, which can effectively monitor the communication power line. When a fault occurs, it can quickly and efficiently alarm, effectively improving the safety and stability of the power communication system. Sexual technical effects.
附图说明 Description of drawings
图1是本实用新型实施例中通讯电源监测装置的结构示意图; Fig. 1 is a schematic structural diagram of a communication power monitoring device in an embodiment of the present invention;
图2是本实用新型实施例中霍尔电流采样器的结构示意图; Fig. 2 is the structural representation of Hall current sampler in the utility model embodiment;
图3是本实用新型实施例中电流采样模拟电路示意图; Fig. 3 is a schematic diagram of a current sampling analog circuit in an embodiment of the present invention;
图4是本实用新型实施例中通讯电源负荷电流监测电路示意图; Fig. 4 is a schematic diagram of a communication power supply load current monitoring circuit in an embodiment of the present invention;
图5是本实用新型实施例中通讯电源监测装置监测报警流程示意图; Fig. 5 is a schematic diagram of the monitoring and alarm process of the communication power monitoring device in the embodiment of the utility model;
其中,1-被监测直流线路,2-霍尔传感器,3-测试孔,4-接线端,5-底座盘,6-固定孔。 Among them, 1-DC line to be monitored, 2-Hall sensor, 3-test hole, 4-terminal, 5-base plate, 6-fixing hole.
具体实施方式 detailed description
本实用新型提供了一种通讯电源监测装置,解决了现有的通讯电源故障检测方法存在,检测效率较低,容易造成正常线路受到牵连影响的技术问题,实现了通讯电源监测装置设计合理,能够有效对通讯电源线路进行监测,当出现故障时,能够快速高效的进行报警,有效提高电力通讯系统的安全稳定性的技术效果。 The utility model provides a monitoring device for communication power supply, which solves the technical problems that the existing communication power supply failure detection method has low detection efficiency and easily causes normal lines to be affected by involvement, and realizes a reasonable design of the communication power supply monitoring device, which can Effectively monitor the communication power supply line, and when there is a failure, it can quickly and efficiently alarm, effectively improving the technical effect of the safety and stability of the power communication system.
本实用新型实施中的技术方案为解决上述技术问题。总体思路如下: The technical solution in the implementation of the utility model is to solve the above technical problems. The general idea is as follows:
采用了将通讯电源监测装置设计为包括:模拟采样处理器、A/D转换器、单片机处理系统、键盘输入单元、时钟信号单元、报警器、通讯接口、存储单元、上位机,其中,所述模拟采样处理器用于对通讯电源的被测线路进行监测,并获得模拟电压信号;所述A/D转换器用于将获得的模拟电压信号转换为数字信号;所述时钟信号单元用于产生时钟信号;所述键盘输入单元用于输入控制指令;所述单片机处理系统用于当模拟采样处理器与键盘输入单元的双重信号经A/D转换后,进行计算分析和处理判断,其判断处理结果,一路送报警器报警,另一路把信号传送给上位机进行处理,经通讯接口将信号传递到系统网络上供集控中心监管人员查看的技术方案,即,首先进行分析,正常时,有关仪器表计投入工作,负荷电流相对稳定;当出现故障时,不论是接地还是短路,都会使电流发生变化,并多数为增加,因此重点是对负荷电流进行监测,正常时,装置保持原状,异常时,装置经检测判断并会发出声光信号,向运行人员提供报警信息,以利及时分析处理,减少事故的发生和扩展,采用了先进的霍尔采样技术,并设置有模拟比较电路,将信号做前端处理,并输出对应负荷变化的电压值,该电压值又经A/D转换,再把数字信号传送给微电脑做进一步分析处理,并实现故障分析比较、判断、计量、显示、储存和信号远传等功能,并实现远方集控中心能及时得到异常信息,做出安全维护处理,大幅度提高智能管理水平,所以,有效解决了现有的通讯电源故障检测方法存在,检测效率较低,容易造成正常线路受到牵连影响的技术问题,进而实现了通讯电源监测装置设计合理,能够有效对通讯电源线路进行监测,当出现故障时,能够快速高效的进行报警,有效提高电力通讯系统的安全稳定性的技术效果。 The communication power monitoring device is designed to include: an analog sampling processor, an A/D converter, a single-chip processing system, a keyboard input unit, a clock signal unit, an alarm, a communication interface, a storage unit, and a host computer, wherein the The analog sampling processor is used to monitor the tested line of the communication power supply and obtain an analog voltage signal; the A/D converter is used to convert the obtained analog voltage signal into a digital signal; the clock signal unit is used to generate a clock signal The keyboard input unit is used to input control instructions; the single-chip processing system is used to perform calculation analysis and processing judgment after the dual signal of the analog sampling processor and the keyboard input unit is converted by A/D, and the judgment processing result, One way sends the alarm to the alarm, the other way transmits the signal to the host computer for processing, and transmits the signal to the system network through the communication interface for the supervisory personnel of the centralized control center to view. The meter is put into operation, and the load current is relatively stable; when a fault occurs, whether it is grounding or short circuit, the current will change, and most of them will increase, so the focus is on monitoring the load current. After detection and judgment, the device will send out sound and light signals to provide alarm information to the operating personnel, so as to facilitate timely analysis and processing, reduce the occurrence and expansion of accidents, adopt advanced Hall sampling technology, and set up an analog comparison circuit to make the signal Front-end processing, and output the voltage value corresponding to the load change, the voltage value is converted by A/D, and then the digital signal is sent to the microcomputer for further analysis and processing, and realizes fault analysis comparison, judgment, measurement, display, storage and signal remote Transmission and other functions, and realize that the remote centralized control center can obtain abnormal information in time, make safe maintenance and processing, and greatly improve the level of intelligent management. The technical problem that caused the normal line to be implicated and affected, and then realized the reasonable design of the communication power monitoring device, which can effectively monitor the communication power line. When a fault occurs, it can quickly and efficiently alarm, effectively improving the safety and stability of the power communication system technical effect.
为了更好的理解上述技术方案,下面将结合说明书附图以及具体的实施方式对上述技术方案进行详细的说明。 In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
实施例: Example:
在实施例中,提供了一种通讯电源监测装置,请参考图1-图5,所述装置包括: In an embodiment, a communication power monitoring device is provided, please refer to Fig. 1-Fig. 5, the device includes:
模拟采样处理器、A/D转换器、单片机处理系统、键盘输入单元、时钟信号单元、报警器、通讯接口、存储单元、上位机,其中,所述模拟采样处理器用于对通讯电源的被测线路进行监测,并获得模拟电压信号;所述A/D转换器用于将获得的模拟电压信号转换为数字信号;所述时钟信号单元用于产生时钟信号;所述键盘输入单元用于输入控制指令;所述单片机处理系统用于当模拟采样处理器与键盘输入单元的双重信号经A/D转换后,进行计算分析和处理判断,其判断处理结果,一路送报警器报警,另一路把信号传送给上位机进行处理,经通讯接口将信号传递到系统网络上供集控中心监管人员查看。 Analog sampling processor, A/D converter, single-chip processing system, keyboard input unit, clock signal unit, alarm, communication interface, storage unit, upper computer, wherein, the analog sampling processor is used for the measured The circuit is monitored to obtain an analog voltage signal; the A/D converter is used to convert the obtained analog voltage signal into a digital signal; the clock signal unit is used to generate a clock signal; the keyboard input unit is used to input control instructions ; The single-chip processing system is used to perform calculation analysis and processing judgment after the double signal of the analog sampling processor and the keyboard input unit is converted by A/D, and it judges the processing result, sends the alarm to the police all the way, and sends the signal to the other road It is processed by the upper computer, and the signal is transmitted to the system network through the communication interface for the supervisory personnel of the centralized control center to view.
其中,在本实用新型实施例中,所述模拟采样处理器具体包括:交直流电源模块、传感器模块、比较判断模块、模拟输出模块,其中,所述交直流电源模块用于将交流电源整流为直流电源供所述模拟采样处理器使用;所述传感器模块用于采集通讯电源被测线路的电流变化信号,并将采集到的信号传递给比较判断模块;所述比较判断模块根据采集到的信号进行比较,若满足比较规则,则输出电压信号到所述模拟输出模块,所述模拟输出模块根据比较判断模块传递来的信号生成模拟电压信号。 Wherein, in the embodiment of the utility model, the analog sampling processor specifically includes: an AC and DC power supply module, a sensor module, a comparison and judgment module, and an analog output module, wherein the AC and DC power supply module is used to rectify the AC power supply into The DC power supply is used for the analog sampling processor; the sensor module is used to collect the current change signal of the communication power supply line under test, and transmits the collected signal to the comparison and judgment module; the comparison and judgment module is based on the collected signal The comparison is performed, and if the comparison rule is met, the voltage signal is output to the analog output module, and the analog output module generates an analog voltage signal according to the signal transmitted from the comparison judgment module.
其中,在本实用新型实施例中,所述交直流电源模块具体为:将220V交流电源从①、②端子引入,经开关K1,保险BX传送给变压器B1降压,B1副边中间抽头,作为公共地;二极管D1—D4完成正、负电源整流;D1、D3输出端并联,接三端正稳压器WY1的输入端1脚,WY1的3脚接公共地,WY1的2脚输出正电源;D2、D4输入端并联,接三端负稳压器WY2的输入端3脚,WY2的1脚接公共地,WY2的2脚输出负电源;电容C1、C2、C3、C4分别作三端稳压器输入、输出的滤波;发光二极管Fg1和电阻R1串联,作工作电源指示。 Among them, in the embodiment of the utility model, the AC/DC power supply module is specifically: the 220V AC power supply is introduced from the ① and ② terminals, through the switch K1, the insurance BX is transmitted to the transformer B1 for step-down, and the middle tap of the secondary side of B1 serves as Common ground; diodes D1-D4 complete the rectification of positive and negative power supplies; the output terminals of D1 and D3 are connected in parallel, connected to pin 1 of the input terminal of the three-terminal positive voltage regulator WY1, pin 3 of WY1 is connected to the common ground, and pin 2 of WY1 outputs positive power; The input terminals of D2 and D4 are connected in parallel, connected to the input terminal 3 pin of the three-terminal negative voltage regulator WY2, the 1 pin of WY2 is connected to the common ground, and the 2 pin of WY2 outputs the negative power supply; the capacitors C1, C2, C3, and C4 are respectively used as three-terminal stabilizers. Filtering of the input and output of the voltage regulator; the light-emitting diode Fg1 and the resistor R1 are connected in series to indicate the working power supply.
其中,在本实用新型实施例中,所述传感器模块具体包括:霍尔电流采样器HR、负载L、模拟电阻Rd1、模拟电阻Rd2,其中,所述霍尔电流采样器包括:底座盘,所述底座盘上放置有传感器,所述传感器和所述底座盘上均设有固定孔,所述传感器中部设有测试孔,被测直流线穿过所述测试孔进行监测,所述传感器上设有正极连接端a,负极连接端b,采样信号输出端c,接地端d;其中,所述霍尔电流采样器HR的正极连接端a与所述交直流电源模块的正极连接,所述霍尔电流采样器HR的负极连接端b与负载L连接后与所述交直流电源模块的负极连接,模拟电阻Rd1和模拟电阻Rd2串联后与所述负载L并联,所述采样信号输出端c与所述比较判断模块连接。 Wherein, in the embodiment of the utility model, the sensor module specifically includes: a Hall current sampler HR, a load L, an analog resistor Rd1, and an analog resistor Rd2, wherein the Hall current sampler includes: a base plate, the A sensor is placed on the base plate, the sensor and the base plate are provided with fixing holes, the middle part of the sensor is provided with a test hole, the measured DC line passes through the test hole for monitoring, and the sensor is provided with There are positive terminal a, negative terminal b, sampling signal output terminal c, and ground terminal d; wherein, the positive terminal a of the Hall current sampler HR is connected to the positive terminal of the AC/DC power supply module, and the Hall The negative terminal b of the current sampler HR is connected to the negative terminal of the AC/DC power supply module after being connected to the load L, the analog resistor Rd1 and the analog resistor Rd2 are connected in parallel to the load L after being connected in series, and the sampling signal output terminal c is connected to The comparison and judgment module is connected.
其中,在本实用新型实施例中,所述比较判断模块具体为:电阻R2和稳压二极管WY3串联,构成基准电压,并接往反相输入端2脚;电阻R3、R4串联,构成工作点,并接往同相输入端3脚,在同相、反相端并结合集成运放电路形成比较判断模块,所述比较判断模块的输出端与所述电位器W1连接。 Wherein, in the embodiment of the utility model, the comparison and judgment module is specifically: the resistor R2 is connected in series with the Zener diode WY3 to form a reference voltage, and is connected to pin 2 of the inverting input terminal; the resistors R3 and R4 are connected in series to form the operating point , and connected to pin 3 of the non-inverting input terminal, and combined with an integrated operational amplifier circuit at the non-inverting and inverting terminals to form a comparison and judgment module, the output of the comparison and judgment module is connected to the potentiometer W1.
其中,在本实用新型实施例中,所述模拟输出模块的电位器的一端与所述比较判断模块的输出端连接,经过电位器的调节,在动触头OUT处对应负荷变化输出电压信号,电位器的另一端与电阻R5串联后接地。 Wherein, in the embodiment of the present utility model, one end of the potentiometer of the analog output module is connected to the output end of the comparison judgment module, and after the adjustment of the potentiometer, a voltage signal corresponding to the load change is output at the moving contact OUT, The other end of the potentiometer is connected in series with the resistor R5 and grounded.
其中,在本实用新型实施例中,开展自动监测装置的研制时,首先进行分析,正常时,有关仪器表计投入工作,负荷电流相对稳定;当出现故障时,不论是接地还是短路,都会使电流发生变化,并多数为增加。为此,我们抓住这样的变化特点进行了通讯电源监测报警装置的研制,重点是对负荷电流进行监测,正常时,装置保持原状,异常时,装置经检测判断并会发出声光信号,向运行人员提供报警信息,以利及时分析处理,减少事故的发生和扩展,有效提高电力通讯系统的安全稳定性。 Among them, in the embodiment of the present utility model, when developing the automatic monitoring device, the analysis is carried out first. When it is normal, the relevant instruments and meters are put into operation, and the load current is relatively stable; The current changes and mostly increases. For this reason, we seized such changing characteristics and carried out the research and development of the monitoring and alarming device for communication power supply. The focus is on monitoring the load current. Operators provide alarm information to facilitate timely analysis and processing, reduce the occurrence and expansion of accidents, and effectively improve the safety and stability of the power communication system.
其中,在本实用新型实施例中,通讯电源在正常运行时,经计算和检测,不论总线还是各分支线,都会有着相对稳定的电流数值,而当发生短路、接地时,电流必将发生变化,通常为升高,为此,我们可以将正常负荷电流值作为比较基础,当异常超越时,进行声光报警。 Among them, in the embodiment of the utility model, when the communication power supply is in normal operation, no matter the bus or each branch line, there will be a relatively stable current value after calculation and detection, and when a short circuit or grounding occurs, the current will definitely change , usually rising, for this reason, we can use the normal load current value as the basis for comparison, and when the abnormality exceeds, an audible and visual alarm will be given.
要知道实际运行电流值的大小,则要进行数据监测采集,但直流电不像交流电,电磁场很弱,采样非常困难,为解决此问题,现有技术中采取了输送10Hz左右低频信号到系统的转换测试方法,这样并不好,因为一是增大设备投资,二是在电力直流系统中增加了频率干扰,所以,我们摒弃了这样的方案。 To know the actual operating current value, it is necessary to monitor and collect data, but unlike alternating current, direct current has a weak electromagnetic field and sampling is very difficult. In order to solve this problem, the existing technology adopts the conversion of transmitting low-frequency signals of about 10 Hz to the system The test method is not good, because one is to increase equipment investment, and the other is to increase frequency interference in the power DC system, so we abandoned such a plan.
我们具体实施采用的是霍尔传感技术,解决了这样的问题,此技术中主要的霍尔传感器是一种半导体器件,在无电流通过时,处于固定状态;当有电流流过时,便会激活电荷,送出对应变化的电压信号,我们再将该信号传送给主机,做量值比较和判断控制,在确认为故障时,将发出行声光报警信号,所用霍尔传感器型号是CS1000EK2。 Our specific implementation uses Hall sensor technology to solve this problem. The main Hall sensor in this technology is a semiconductor device, which is in a fixed state when there is no current flowing through it; Activate the charge and send out a correspondingly changed voltage signal. We then send the signal to the host for value comparison and judgment control. When a fault is confirmed, an audible and visual alarm signal will be sent out. The model of the Hall sensor used is CS1000EK2.
其中,霍尔传感器结构及采样方式如图2和图3所示:在图2中,被监测直流线路1(可以是电源总线,也可是分支线路),从正端M穿过霍尔传感器2的中心测试孔3,线路的另一端接有负载L,回到负端N,4是接线端,其中a为+15V、b为-15V、c为采样信号输出端、d是接地端,5为底座盘,6是固定孔,可根据现场位置做选用,在本图中只要被测线穿过测试孔3,接上工作电源,即可进入被监测状态。 Among them, the Hall sensor structure and sampling method are shown in Figure 2 and Figure 3: In Figure 2, the monitored DC line 1 (which can be a power bus or a branch line) passes through the Hall sensor 2 from the positive terminal M The center test hole 3 of the circuit, the other end of the line is connected to the load L, back to the negative terminal N, 4 is the terminal, where a is +15V, b is -15V, c is the sampling signal output terminal, d is the ground terminal, 5 6 is a fixing hole, which can be selected according to the site location. In this figure, as long as the measured line passes through the test hole 3 and is connected to the working power supply, it can enter the monitored state.
图3是采样模拟电路图,正常时,总电流Iz与负荷电流If相同,即Iz=If,在霍尔传感器HR中,可作为一个常规量值输出,当故障发生时,如线路中出现接地现象,将产生接地电流Id,总电流Iz增大,则Iz=If+Id,这时霍尔传感器采集到的电量信号增加,经转换处理后,在图3的c端子送出对应的更大电压信号,图3中Rd1、Rd2只是模拟接地电阻。 Figure 3 is a sampling analog circuit diagram. Normally, the total current Iz is the same as the load current If, that is, Iz=If. In the Hall sensor HR, it can be used as a conventional value output. When a fault occurs, such as a grounding phenomenon in the line , the ground current Id will be generated, the total current Iz will increase, then Iz=If+Id, at this time the power signal collected by the Hall sensor will increase, and after conversion processing, a corresponding larger voltage signal will be sent out at the c terminal in Figure 3 , Rd1 and Rd2 in Figure 3 are only simulated grounding resistance.
其中,在本实用新型实施例中,请参考图4,图4为通讯电源负荷电流监电路示意图,在图4中,有以下几个部分,将分别予以介绍。 Wherein, in the embodiment of the present utility model, please refer to FIG. 4 , which is a schematic diagram of a communication power supply load current monitoring circuit. In FIG. 4 , there are the following parts, which will be introduced respectively.
交直流电源模块:电源是工作基础,所以,让我们首先进行设计,在图4前面,220V交流电源从①、②端子引入,经开关K1,保险BX传送给变压器B1降压,B1副边中间抽头,作为公共地;二极管D1—D4完成正、负电源整流;D1、D3输出端并联,接三端正稳压器WY1的输入端1脚,WY1的3脚接公共地,2脚输出正电源;D2、D4输入端并联,接三端负稳压器WY2的输入端3脚,WY2的1脚接公共地,2脚输出负电源,其中WY1的型号是W7815,WY2的型号是W7915;电容C1、C2、C3、C4分别作三端稳压器输入、输出的50Hz和中高频滤波;发光二极管Fg1和电阻R1串联,作工作电源指示。 AC/DC power supply module: Power supply is the basis of work, so let’s design it first. In front of Figure 4, 220V AC power supply is introduced from terminals ① and ②. Through switch K1, insurance BX transmits to transformer B1 for step-down, and the middle of secondary side of B1 Tap, as the common ground; diodes D1-D4 complete the rectification of the positive and negative power supplies; the output terminals of D1 and D3 are connected in parallel, connected to the input terminal 1 of the three-terminal positive voltage regulator WY1, the 3-pin of WY1 is connected to the common ground, and the 2-pin outputs the positive power supply ;D2 and D4 input terminals are connected in parallel, connected to pin 3 of the input terminal of the three-terminal negative regulator WY2, pin 1 of WY2 is connected to the common ground, and pin 2 outputs the negative power supply, the model of WY1 is W7815, and the model of WY2 is W7915; C1, C2, C3, and C4 are respectively used as 50Hz and mid-high frequency filtering for the input and output of the three-terminal voltage regulator; the light-emitting diode Fg1 and the resistor R1 are connected in series to indicate the working power supply.
传感器模块:在图4的左侧可以看到,我们设计了霍尔传感器及其连接方式,其采集到的电信号从接线4输出,再对应传送给图4中的输入插座CZ1,从图中可见,CZ1的a端接+15V电源,b端接-15V电源,c端为采集转换后的故障信号,接往比较放大器,d为公共地。 Sensor module: As can be seen on the left side of Figure 4, we have designed the Hall sensor and its connection method. The electrical signal collected by it is output from the connection 4, and then correspondingly transmitted to the input socket CZ1 in Figure 4. From the figure It can be seen that terminal a of CZ1 is connected to +15V power supply, terminal b is connected to -15V power supply, terminal c is used to collect and convert the fault signal, and connected to the comparison amplifier, and d is the common ground.
器件连接好后,将被监测直流线穿过霍尔传感器中芯孔,接上正负电源,即可开始电流变化采集工作。 After the device is connected, pass the monitored DC line through the core hole of the Hall sensor, connect the positive and negative power supplies, and start the current change collection work.
比较判断模块:在图4中,以IC1为中心形成比较判断模块,其中电阻R2和稳压二极管WY3串联,构成基准电压,接往反相输入端2脚;电阻R3、R4串联,构成工作点,接往同相输入端3脚,由此,在同相、反相端并结合集成运放IC1形成比较判断器。 Comparison and judgment module: In Figure 4, a comparison and judgment module is formed centering on IC1, in which resistor R2 is connected in series with Zener diode WY3 to form a reference voltage, which is connected to pin 2 of the inverting input terminal; resistors R3 and R4 are connected in series to form a working point , connected to the non-inverting input terminal 3 feet, thus, the non-inverting and inverting terminals are combined with the integrated operational amplifier IC1 to form a comparison judge.
在正常状况下,负荷电流变化不大,霍尔传感器常规输入电压较低,处于U2﹥U3状态,集成运放IC1截至;但若出现接地、负荷冲击等故障现象,直流电流Iz上升,经霍尔传感器采样转换后,从c脚送来对应变化的较高电压,将转换为U2﹤U3,此时集成运放IC1翻转,在6脚输出高电平。 Under normal conditions, the load current does not change much, the normal input voltage of the Hall sensor is low, and it is in the state of U2 > U3, and the integrated operational amplifier IC1 is cut off; but if there are faults such as grounding or load impact, the DC current Iz rises, and after the Hall sensor After the sensor is sampled and converted, a higher voltage corresponding to the change is sent from the c pin, which will be converted into U2﹤U3. At this time, the integrated operational amplifier IC1 flips and outputs a high level at the 6 pin.
IC1集成运放块信号选用的是F007,它可以适应±15V工作。 The IC1 integrated operational amplifier block signal is F007, which can adapt to ±15V work.
模拟输出模块:当集成运放IC1翻转后,在6脚送出高电平,该高电平接往电位器W1的一端,经过W1的调节,在动触头OUT处对应负荷变化输出0-3.6V电压信号,为智能计算做好量值准备,W1的另一端与电阻R5串联后接地,R5是保护电阻,可防止电位器动触头调节到下部端头时造成输出信号对地短路。 Analog output module: When the integrated op amp IC1 flips over, it sends a high level at pin 6, which is connected to one end of the potentiometer W1, and after adjustment by W1, the corresponding load change output at the moving contact OUT is 0-3.6 V voltage signal is prepared for intelligent calculation. The other end of W1 is connected in series with resistor R5 and grounded. R5 is a protective resistor that prevents the output signal from shorting to ground when the potentiometer’s moving contact is adjusted to the lower end.
因现在无人值班变电站增多,需要考虑将监测信号远传到集控中心的问题,为此,我们引入了智能化监测装置,使之能够完成所需功能。 Due to the increasing number of unattended substations, it is necessary to consider the problem of remote transmission of monitoring signals to the centralized control center. For this reason, we have introduced intelligent monitoring devices to enable them to complete the required functions.
监测装置的结构示意图如图1所示,装置由外部采样和内部芯片两部份组成。 The structure diagram of the monitoring device is shown in Figure 1. The device consists of two parts: external sampling and internal chip.
外部模拟采样信号:图1左上部是通讯电源被监测线路穿过霍尔传感器,经图4中电路比较处理后,从OUT处送来的模拟电压信号。 External analog sampling signal: The upper left part of Figure 1 is the analog voltage signal sent from OUT after the monitored circuit of the communication power supply passes through the Hall sensor and is compared and processed by the circuit in Figure 4.
芯片结构:在图1中,经霍尔传感器采集的信号引入到单片微机系统,进行系列的智能化处理: Chip structure: In Figure 1, the signal collected by the Hall sensor is introduced into the single-chip microcomputer system for a series of intelligent processing:
1)A/D转换:从霍尔采样及其电路处理后送来的是模拟电压信号,而微机芯片响应的是数字信号,所以,要做A/D转换,再由数据总线和地址总线传送给CPU中央信号处理器,进行与键盘设置信号作比较判断等工作,所用A/D转换型号是MAX125。 1) A/D conversion: The analog voltage signal is sent from the Hall sampling and its circuit processing, while the microcomputer chip responds to a digital signal, so A/D conversion is required, and then transmitted by the data bus and address bus For the CPU central signal processor, compare and judge with the keyboard setting signal, etc., the A/D conversion model used is MAX125.
2)时钟信号:装置内部设有石英晶体振荡器,分频器、计数器等,以产生年、月、日、时、分、秒等时钟信号,既可走时,又能记录故障发生时间,便于事故分析处理,所用晶体时钟的型号为DS12887。 2) Clock signal: There are quartz crystal oscillators, frequency dividers, counters, etc. inside the device to generate clock signals such as year, month, day, hour, minute, second, etc., which can not only travel time, but also record the time of failure, which is convenient For accident analysis and processing, the model of the crystal clock used is DS12887.
3)键盘设置:在图1的右侧,设有键盘和IOP(I/OProcessor)集成接收处理器,可进行人机对话,输入被监测接地线路、传感器编号、电流比较值、报警启动值、时间校正、通讯规约等;又可结合LCD液晶显示屏作被监测接地线号、接地电流量值、故障时间等调看和查询,所用接收处理器的型号是JCDL8279。 3) Keyboard setting: On the right side of Figure 1, there is a keyboard and IOP (I/OProcessor) integrated receiving processor, which can conduct man-machine dialogue and input the monitored grounding line, sensor number, current comparison value, alarm start value, Time correction, communication protocol, etc.; it can also be combined with LCD liquid crystal display for viewing and querying of the monitored grounding line number, grounding current value, fault time, etc. The model of the receiving processor used is JCDL8279.
4)单片机处理系统:根据信息处理需要,我们选用了功能强大的MCS-96型单片微机开展工作。 4) Single-chip microcomputer processing system: According to the needs of information processing, we selected a powerful MCS-96 single-chip microcomputer to carry out the work.
当模拟采样与键盘设置的双重信号经A/D转换后,通过地址总线和数据总线,送入CPU单片微机,进行计算分析和处理判断,其判断处理结果,一路送本机LCD液晶屏显示报警,另一路又把信号传送给上位机,作更宽范围、更大功能的分类、编排、制表、存储等处理,还按现场适应的通讯规约和波特率等,经RS232、485接口将信号传递到系统网络上,使集控中心监管人员和相关领导在远方也能了解和掌握通讯直流电源工作情况,特别是在异常状态下,及时作出事故分析与排查处理,以保证直流通讯电源能安全、稳定运行。 After the dual signal of analog sampling and keyboard setting is converted by A/D, it is sent to the CPU single-chip microcomputer through the address bus and data bus for calculation, analysis and processing judgment, and the judgment processing result is sent to the local LCD screen for display. alarm, and the other channel transmits the signal to the upper computer for classification, arrangement, tabulation, storage, etc. in a wider range and with greater functions, and also according to the communication protocol and baud rate adapted to the site, through the RS232, 485 interface The signal is transmitted to the system network, so that the supervisory personnel of the centralized control center and relevant leaders can understand and master the working conditions of the communication DC power supply in a remote place, especially in an abnormal state, and timely analyze and troubleshoot the accident to ensure that the DC communication power supply Can run safely and stably.
其中,在本实用新型实施例中还进行了CPU软件设计,根据通讯直流电源负荷电流监测的需要,在硬件结构的基础上,我们设计了相关软件流程,如图5所示,具体为:初始化,工作开始,首先对监测系统做清零和复位等初始化处理;人机对话,从键盘中输入系列信号和数据,它们是: Among them, the CPU software design is also carried out in the embodiment of the utility model. According to the needs of the load current monitoring of the communication DC power supply, on the basis of the hardware structure, we have designed the relevant software flow, as shown in Figure 5, specifically: initialization , start the work, firstly perform initialization processing such as clearing and resetting the monitoring system; man-machine dialogue, input a series of signals and data from the keyboard, they are:
1)、被监测线路序号,可为电源总线或分支线; 1) The serial number of the monitored line can be a power bus or a branch line;
2)、扫描时间t,为避免瞬时冲击和减除信号运算时间等,以确认故障的真实性和延续性,本装置设置扫描间隔时间t,取为10秒。 2) Scanning time t, in order to avoid instantaneous impact and subtract signal operation time, etc., to confirm the authenticity and continuity of the fault, the device sets the scanning interval time t, which is taken as 10 seconds.
3)、常规负荷电流If,可设置为基本比较值; 3) The conventional load current If can be set as the basic comparison value;
比较判断:当参数设置完成,内部便进行数据转换处理,形成单片机能识别的二进制码;另一侧,由直流负荷电流监测采样和经A/D转换的数字信号,一并送给CPU进行实测总电流Iz和常规负荷电流If的比较判别(脚标字母z、f分别代表“总值”和“负荷值”)。 Comparison and judgment: When the parameter setting is completed, the internal data conversion process is performed to form a binary code that can be recognized by the single-chip microcomputer; on the other side, the digital signal sampled by the DC load current monitoring and converted by A/D is sent to the CPU for actual measurement The comparison and judgment of the total current Iz and the conventional load current If (the subscript letters z and f represent "total value" and "load value" respectively).
正常时,总电流Iz和负荷电流If基本一直,即在“Iz>If”的询问中,得到否定答案,所以信号从比较器N端输出,继续“循环扫描”。 Normally, the total current Iz and the load current If are basically the same, that is, in the inquiry of "Iz>If", a negative answer is obtained, so the signal is output from the N terminal of the comparator to continue "circular scanning".
当被监测线路出现接地等故障等时,将会产生接地电流Id,由此总电流增加,即:Iz=If+Id,所以,将被采集信号传送给CPU进行比较判断,即在“Iz>If”的询问中,得到的是肯定答案,信号则改变从比较器的Y端输出。 When the monitored line has a fault such as grounding, etc., the grounding current Id will be generated, and the total current will increase, that is: Iz=If+Id, so the collected signal will be sent to the CPU for comparison and judgment, that is, when "Iz> In the inquiry of "If", if the answer is affirmative, the signal changes and is output from the Y terminal of the comparator.
液晶屏计量显示:液晶屏显示分正常和异常两种状况,正常时,着重显示常规负荷电流If值和当前时间;异常时,则要将图3中电位器W1调节输出的0-3.6V电压值对应智能芯片中0-255个数字点做计算与量化处理,并加上原有If的数据,共同显示,方体现Iz=If+Id的故障情况,除电流数据外,还要显示故障时间、线路号以及声光报警信号等;这些信息同时又加以储存,以利调看查询,做事故分析处理。 LCD metering display: The LCD display is divided into normal and abnormal conditions. When it is normal, it will focus on displaying the conventional load current If value and the current time; The value corresponds to 0-255 digital points in the smart chip for calculation and quantification processing, and together with the original If data, they are displayed together to reflect the fault situation of Iz=If+Id. In addition to the current data, the fault time, Line number, sound and light alarm signal, etc.; these information are also stored at the same time, so as to facilitate viewing and query, and do accident analysis and processing.
另在模拟电路中,已将常规负荷电流转化为稳压二极管WY3做基准电压,与经霍尔采样转换的电压数据进行比较;而在微电脑中,又经键盘设置了负荷电流If值,并进行“Iz>If”的询问比较,这样,看似重复,但作用有别,后者既有比较判断,还在于启动“If+Id”的量值计算,并将数据在液晶屏上显示出来,同时也可启动智能系统远方设置的报警装置,故体现了更加准确可靠的双重处理特点。 In addition, in the analog circuit, the conventional load current has been converted into the Zener diode WY3 as the reference voltage, and compared with the voltage data converted by Hall sampling; and in the microcomputer, the value of the load current If is set via the keyboard, and The query comparison of "Iz>If" seems to be repeated in this way, but the function is different. The latter not only has comparative judgment, but also starts the value calculation of "If+Id", and displays the data on the LCD screen. At the same time, it can also start the alarm device set in the remote place of the intelligent system, so it reflects the more accurate and reliable dual processing characteristics.
信息传送:故障信号在液晶屏显示报警的同时,又传送给上位机,做更宽范围的整合归类等处理,再经RS232或485接口等,采用现场适宜的通讯协议,传送给系统网络,使集控中心人员和相关领导在远方也能了解到直流系统故障情况,以便及时做出维护处理,从而避免事故的蔓延扩大,由此大幅度提高系统安全系数。 Information transmission: While displaying the alarm on the LCD screen, the fault signal is transmitted to the host computer for wider integration and classification, and then transmitted to the system network through the RS232 or 485 interface, etc., using the appropriate communication protocol on site. It enables the personnel of the centralized control center and relevant leaders to know the fault situation of the DC system in a remote place, so as to make timely maintenance and treatment, so as to avoid the spread and expansion of the accident, thereby greatly improving the system safety factor.
本实用新型中的智能通讯电源负荷电流监测报警装置采用了先进的霍尔采样技术,并设置有模拟比较电路,将信号做前端处理,并输出对应负荷变化的电压值,该电压值又经A/D转换,再把数字信号传送给微电脑做进一步分析处理,并实现故障分析比较、判断、计量、显示、储存和信号远传等功能,并实现远方集控中心能及时得到异常信息,做出安全维护处理,大幅度提高智能管理水平,本装置更有利于扩展到无人值班变电站的使用。 The intelligent communication power supply load current monitoring and alarm device in the utility model adopts advanced Hall sampling technology, and is equipped with an analog comparison circuit, which processes the signal at the front end, and outputs a voltage value corresponding to the load change, and the voltage value is passed through A /D conversion, and then transmit the digital signal to the microcomputer for further analysis and processing, and realize the functions of fault analysis and comparison, judgment, measurement, display, storage and signal remote transmission, and realize that the remote centralized control center can obtain abnormal information in time and make a decision Safe maintenance and processing greatly improve the level of intelligent management, and this device is more conducive to expanding the use of unattended substations.
上述本实用新型实施例中的技术方案,至少具有如下的技术效果或优点: The above-mentioned technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
由于采用了将通讯电源监测装置设计为包括:模拟采样处理器、A/D转换器、单片机处理系统、键盘输入单元、时钟信号单元、报警器、通讯接口、存储单元、上位机,其中,所述模拟采样处理器用于对通讯电源的被测线路进行监测,并获得模拟电压信号;所述A/D转换器用于将获得的模拟电压信号转换为数字信号;所述时钟信号单元用于产生时钟信号;所述键盘输入单元用于输入控制指令;所述单片机处理系统用于当模拟采样处理器与键盘输入单元的双重信号经A/D转换后,进行计算分析和处理判断,其判断处理结果,一路送报警器报警,另一路把信号传送给上位机进行处理,经通讯接口将信号传递到系统网络上供集控中心监管人员查看的技术方案,即,首先进行分析,正常时,有关仪器表计投入工作,负荷电流相对稳定;当出现故障时,不论是接地还是短路,都会使电流发生变化,并多数为增加,因此重点是对负荷电流进行监测,正常时,装置保持原状,异常时,装置经检测判断并会发出声光信号,向运行人员提供报警信息,以利及时分析处理,减少事故的发生和扩展,采用了先进的霍尔采样技术,并设置有模拟比较电路,将信号做前端处理,并输出对应负荷变化的电压值,该电压值又经A/D转换,再把数字信号传送给微电脑做进一步分析处理,并实现故障分析比较、判断、计量、显示、储存和信号远传等功能,并实现远方集控中心能及时得到异常信息,做出安全维护处理,大幅度提高智能管理水平,所以,有效解决了现有的通讯电源故障检测方法存在,检测效率较低,容易造成正常线路受到牵连影响的技术问题,进而实现了通讯电源监测装置设计合理,能够有效对通讯电源线路进行监测,当出现故障时,能够快速高效的进行报警,有效提高电力通讯系统的安全稳定性的技术效果。 Due to the adoption of the design of the communication power monitoring device to include: an analog sampling processor, an A/D converter, a single-chip processing system, a keyboard input unit, a clock signal unit, an alarm, a communication interface, a storage unit, and a host computer, among them, The analog sampling processor is used to monitor the tested line of the communication power supply and obtain an analog voltage signal; the A/D converter is used to convert the obtained analog voltage signal into a digital signal; the clock signal unit is used to generate a clock signal; the keyboard input unit is used to input control instructions; the single-chip processing system is used to perform calculation analysis and processing judgment after the double signal of the analog sampling processor and the keyboard input unit is converted by A/D, and it judges the processing result , one way sends the alarm to the alarm, the other way transmits the signal to the host computer for processing, and transmits the signal to the system network through the communication interface for the supervisory personnel of the centralized control center to view. When the meter is put into operation, the load current is relatively stable; when a fault occurs, whether it is grounding or short circuit, the current will change, and most of them will increase. Therefore, the focus is on monitoring the load current. When it is normal, the device remains in its original state. , the device will send out sound and light signals after detection and judgment, and provide alarm information to the operating personnel, so as to facilitate timely analysis and processing, reduce the occurrence and expansion of accidents, adopt advanced Hall sampling technology, and set up an analog comparison circuit to compare the signal Do front-end processing, and output the voltage value corresponding to the load change, the voltage value is converted by A/D, and then the digital signal is sent to the microcomputer for further analysis and processing, and realizes fault analysis, comparison, judgment, measurement, display, storage and signal Remote transmission and other functions, and realize that the remote centralized control center can obtain abnormal information in time, make safe maintenance processing, and greatly improve the level of intelligent management. Therefore, it effectively solves the existing communication power failure detection methods, and the detection efficiency is low. Technical problems that are likely to cause normal lines to be affected by involvement, and then realize the reasonable design of the communication power monitoring device, which can effectively monitor the communication power line. When a fault occurs, it can quickly and efficiently alarm, effectively improving the safety and stability of the power communication system. Sexual technical effects.
尽管已描述了本实用新型的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本实用新型范围的所有变更和修改。 While preferred embodiments of the present invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be interpreted to cover the preferred embodiment and all changes and modifications which fall within the scope of the present invention.
显然,本领域的技术人员可以对本实用新型进行各种改动和变型而不脱离本实用新型的精神和范围。这样,倘若本实用新型的这些修改和变型属于本实用新型权利要求及其等同技术的范围之内,则本实用新型也意图包含这些改动和变型在内。 Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and equivalent technologies thereof, the utility model is also intended to include these modifications and variations.
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CN109946507A (en) * | 2019-02-22 | 2019-06-28 | 苏州埃缇益自动化科技有限公司 | A kind of supply voltage real-time monitoring system of semiconductor test machine |
CN114224268A (en) * | 2022-02-24 | 2022-03-25 | 极限人工智能有限公司 | Image processing device and endoscopic video system |
CN114224268B (en) * | 2022-02-24 | 2022-05-03 | 极限人工智能有限公司 | Image processing device and endoscopic video system |
CN114646898A (en) * | 2022-02-24 | 2022-06-21 | 西华大学 | Wireless power transmission system fault diagnosis and processing method, system and storage medium |
CN114646898B (en) * | 2022-02-24 | 2025-06-24 | 西华大学 | Wireless power transmission system fault diagnosis and processing method, system and storage medium |
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