CN108931318A - Temperature monitoring system for cable joint of power distribution network - Google Patents
Temperature monitoring system for cable joint of power distribution network Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 43
- 238000012806 monitoring device Methods 0.000 claims abstract description 32
- 238000004891 communication Methods 0.000 claims description 41
- 238000010248 power generation Methods 0.000 claims description 14
- 239000000523 sample Substances 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- PSFDQSOCUJVVGF-UHFFFAOYSA-N harman Chemical compound C12=CC=CC=C2NC2=C1C=CN=C2C PSFDQSOCUJVVGF-UHFFFAOYSA-N 0.000 description 2
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- 238000002788 crimping Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
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Abstract
本发明提供一种配电网电缆接头处温度监控系统，包括靠近待测电缆接头处设置的温度监控装置以及远离待测电缆接头处设置的报警显示接收器，且二者相连；温度监控装置实时采集待测电缆接头的实际温度及其对应四周的环境温度并直接显示以及转发至报警显示接收器显示，且进一步待判定出待测电缆接头的实际温度超出环境温度一定阈值后，直接触发报警和/或下发报警指令至报警显示接收器进行报警；报警显示接收器显示温度监控装置转发的待测电缆接头的实际温度及其对应四周的环境温度，并待接收到下发的报警指令后，触发报警。实施本发明，能够快速准确地反应电缆接头处温度异常情况，并巧妙的解决了供电问题，能长期稳定的工作。
The invention provides a temperature monitoring system at the cable joint of a distribution network, which includes a temperature monitoring device set near the cable joint to be tested and an alarm display receiver set far away from the cable joint to be tested, and the two are connected; the temperature monitoring device real-time Collect the actual temperature of the cable joint to be tested and the corresponding surrounding ambient temperature and directly display and forward it to the alarm display receiver for display, and further to determine that the actual temperature of the cable joint to be tested exceeds a certain threshold of the ambient temperature, directly trigger the alarm and /or send an alarm command to the alarm display receiver for alarm; the alarm display receiver displays the actual temperature of the cable joint to be tested forwarded by the temperature monitoring device and the corresponding ambient temperature around it, and after receiving the issued alarm command, Trigger an alarm. The implementation of the present invention can quickly and accurately reflect the abnormal temperature at the cable joint, solve the problem of power supply ingeniously, and can work stably for a long time.
Description
技术领域technical field
本发明涉及电力技术领域，尤其涉及一种配电网电缆接头处温度监控系统。The invention relates to the field of electric power technology, in particular to a temperature monitoring system at a cable joint of a distribution network.
背景技术Background technique
电缆是电力系统的重要组成部分，主要分布在电缆沟、电缆隧道、电缆桥架、电缆夹层内，不仅人工巡查十分不便，而且因长期带电运行，导致老化、易燃等故障发生的几率较大。据统计，我国历年由电气设备引发的火灾事故中，80%是由电线电缆线有关。随着城市化进程的不断推进，配网电缆也不断深入，电力电缆的使用量大幅增加，因此电力电缆的运行管理、监测和维护工作愈加重要。Cables are an important part of the power system. They are mainly distributed in cable trenches, cable tunnels, cable bridges, and cable interlayers. Not only is manual inspection very inconvenient, but also due to long-term electrified operation, the probability of aging and flammable failures is relatively high. According to statistics, 80% of the fire accidents caused by electrical equipment in my country over the years are related to wires and cables. With the continuous advancement of the urbanization process, the distribution network cables are also deepening, and the use of power cables has increased significantly. Therefore, the operation management, monitoring and maintenance of power cables are becoming more and more important.
现有的电力电缆状态监测系统，基于分布式光纤温度传感技术，并利用光时域反射和哈曼散射技术，得到沿光纤长度近乎连续的电缆表面温度分布，实现温度异常变化预警、温度过热点定位和稳态载流量计算等功能。但是，该技术的不足之处在于：（1）不能及时监测和有效定位瞬时闪络故障或其它暂态故障，原因在于闪络等暂态故障的瞬时性常常不能引起电缆表面温度的明显变化；（2）不能实现实时载流量计算，原因在于电缆发生泄漏故障时，如果泄漏电流很小，电缆表面温升变化也不明显。The existing power cable status monitoring system is based on distributed optical fiber temperature sensing technology, and uses optical time domain reflection and Harman scattering technology to obtain a nearly continuous cable surface temperature distribution along the length of the optical fiber, and realizes early warning of abnormal temperature changes and temperature overshoot. Functions such as hotspot location and steady-state ampacity calculation. However, the shortcomings of this technology are: (1) It cannot monitor and effectively locate instantaneous flashover faults or other transient faults in time, because the transient nature of transient faults such as flashover often cannot cause significant changes in cable surface temperature; (2) Real-time ampacity calculation cannot be realized, because when a leakage fault occurs in the cable, if the leakage current is small, the temperature rise of the cable surface will not change significantly.
由此可见，基于分布式光纤温度传感技术的现有电力电缆状态监测系统，不能实现电力电缆温度异常的及时监测和预警，特别是最易发生故障的电力电缆接头压接不良或超负荷运行，都会导致接头处温度急剧上升，从而导致电力事故。然而，故障电流经长距离的电缆传导，容易造成故障信号衰减和变形，在变电站端不易于捕捉，因此有必要对重要的电力电缆 接头部位采集瞬时故障信号，实现早期监测、预警和定位。It can be seen that the existing power cable status monitoring system based on distributed optical fiber temperature sensing technology cannot realize timely monitoring and early warning of power cable temperature abnormalities, especially the power cable joints that are most prone to failure due to poor crimping or overload operation , will cause the temperature at the joint to rise sharply, resulting in electrical accidents. However, the fault current is transmitted through long-distance cables, which easily causes attenuation and deformation of the fault signal, and is not easy to capture at the substation end. Therefore, it is necessary to collect instantaneous fault signals at important power cable joints to achieve early monitoring, early warning and positioning.
发明内容Contents of the invention
本发明所要解决的技术问题在于，提供一种配电网电缆接头处温度监控系统，能够快速准确地反应电缆接头处温度异常情况，并巧妙的解决了供电问题，能长期稳定的工作。The technical problem to be solved by the present invention is to provide a temperature monitoring system at the cable joint of the distribution network, which can quickly and accurately respond to the abnormal temperature at the cable joint, and skillfully solve the power supply problem, and can work stably for a long time.
为了解决上述技术问题，本发明实施例提供了一种配电网电缆接头处温度监控系统，包括靠近待测电缆接头处设置的温度监控装置以及远离所述待测电缆接头处设置的报警显示接收器，且所述温度监控装置与所述报警显示接收器相连；其中，In order to solve the above technical problems, an embodiment of the present invention provides a temperature monitoring system at the cable joint of the distribution network, including a temperature monitoring device set near the cable joint to be tested and an alarm display receiver set far away from the cable joint to be tested. device, and the temperature monitoring device is connected to the alarm display receiver; wherein,
所述温度监控装置，用于实时采集所述待测电缆接头的实际温度及其对应四周的环境温度并直接显示以及转发至所述报警显示接收器显示，且进一步待判定出所述待测电缆接头的实际温度超出所述待测电缆接头处四周的环境温度一定阈值后，直接触发报警和/或下发报警指令至所述报警显示接收器进行报警；The temperature monitoring device is used to collect the actual temperature of the cable joint to be tested and the corresponding ambient temperature in real time and directly display and forward it to the alarm display receiver for display, and further determine the temperature of the cable to be tested After the actual temperature of the joint exceeds a certain threshold value of the ambient temperature around the cable joint to be tested, an alarm is directly triggered and/or an alarm command is sent to the alarm display receiver for alarm;
所述报警显示接收器，用于显示所述温度监控装置转发的待测电缆接头的实际温度及其对应四周的环境温度，并待接收到所述温度监控装置下发的报警指令后，触发报警。The alarm display receiver is used to display the actual temperature of the cable joint to be tested forwarded by the temperature monitoring device and the corresponding surrounding ambient temperature, and trigger an alarm after receiving the alarm command issued by the temperature monitoring device .
其中，所述温度监控装置包括供电电源，以及与所述供电电源均相连的第一温度传感器和温度监测显示仪；其中，Wherein, the temperature monitoring device includes a power supply, and a first temperature sensor and a temperature monitoring display connected to the power supply; wherein,
所述供电电源，用于提供直流电压；The power supply is used to provide DC voltage;
所述第一温度传感器的一端与所述温度监测显示仪相连，另一端设有位于所述温度监测显示器外部并靠近所述待测电缆接头处的探头，且所述探头用于实时采集所述待测电缆接头的实际温度；One end of the first temperature sensor is connected to the temperature monitoring display, and the other end is provided with a probe located outside the temperature monitoring display and close to the cable joint to be tested, and the probe is used to collect the temperature in real time. The actual temperature of the cable joint to be tested;
所述温度监测显示仪内置有第一微处理器、以及与所述第一微处理器均相连的第一无线通信单元、第二温度传感器、第一报警单元和第一显示单元，且所述第一无线通信单元还与所述报警显示接收器实现无线连接；其中，所述第一微处理器还与所述第一温度传感器相连，用于接收所述第一温度传感器实时采集到的待测电缆接头的实际温度以及接收通过所述第二温度传感器所采集到的待测电缆接头处四周的环境温度，并直接推送给所述第一显示单元显示以及通过所述第一无线通信单元转发至所述报警显示接收器显示，且待判定出所述待测电缆接头的实际温度超出所述待测电缆接头处四周的环境温度一定阈值后，直接触发所述第一报警单元进行报警和/或通过所述第一无线通信单元下发报警指令至所述报警显示接收器进行报警。The temperature monitoring and display instrument has a built-in first microprocessor, a first wireless communication unit connected to the first microprocessor, a second temperature sensor, a first alarm unit and a first display unit, and the The first wireless communication unit is also wirelessly connected to the alarm display receiver; wherein, the first microprocessor is also connected to the first temperature sensor, and is used to receive the waiting time collected by the first temperature sensor in real time. Measure the actual temperature of the cable joint and receive the ambient temperature around the cable joint to be tested collected by the second temperature sensor, and directly push it to the first display unit for display and forward it through the first wireless communication unit until the alarm display receiver is displayed, and after it is determined that the actual temperature of the cable joint to be tested exceeds a certain threshold of the ambient temperature around the cable joint to be tested, directly trigger the first alarm unit to issue an alarm and/or Or send an alarm command to the alarm display receiver through the first wireless communication unit to issue an alarm.
其中，所述报警显示接收器内置有第二微处理器、以及与所述第二微处理器均相连的第二无线通信单元、第二显示单元和第二报警单元；其中，Wherein, the alarm display receiver has a built-in second microprocessor, a second wireless communication unit, a second display unit and a second alarm unit connected to the second microprocessor; wherein,
所述第二无线通信单元与所述温度监测显示仪内置的第一无线通信单元实现无线通信连接，用于接收所述温度监测显示仪转发的待测电缆接头的实际温度及其对应的环境温度以及接收所述温度监测显示仪下发的报警指令，并直接送入所述第二微处理器中；The second wireless communication unit realizes a wireless communication connection with the first wireless communication unit built in the temperature monitoring and display instrument, and is used to receive the actual temperature of the cable joint to be tested and the corresponding ambient temperature forwarded by the temperature monitoring and display instrument And receiving the alarm command issued by the temperature monitoring display instrument, and directly sending it into the second microprocessor;
所述第二微处理器，用于将接收到的待测电缆接头的实际温度及其对应的环境温度推送给所述第二显示单元显示，以及根据所接收到的报警指令触发所述第二报警单元进行报警。The second microprocessor is configured to push the received actual temperature of the cable joint to be tested and its corresponding ambient temperature to the second display unit for display, and trigger the second display unit according to the received alarm instruction. The alarm unit gives an alarm.
其中，所述供电电源包括温差发电片，以及设置在所述温差发电片上的散热片和发电片电极；其中，所述发电片电极通过导线与所述温度监测显示仪和所述第一温度传感器相连。Wherein, the power supply includes a thermoelectric power generation chip, and a heat sink and a power generation chip electrode arranged on the thermoelectric power generation chip; wherein, the power generation chip electrode is connected to the temperature monitoring display instrument and the first temperature sensor through a wire connected.
其中，所述第一无线通信单元和所述第二无线通信单元为相对设置的WIFI无线通信模块或4G\5G无线通信模块。Wherein, the first wireless communication unit and the second wireless communication unit are WIFI wireless communication modules or 4G/5G wireless communication modules arranged opposite to each other.
其中，所述第一报警单元和所述第二报警单元为蜂鸣器或指示灯。Wherein, the first alarm unit and the second alarm unit are buzzers or indicator lights.
实施本发明实施例，具有如下有益效果：Implementing the embodiment of the present invention has the following beneficial effects:
1、本发明采用温度监控装置同时实时监测显示出待测电缆接头的实际温度及其四周的环境温度，一旦实际温度超出环境温度一定阈值（如20摄氏度）后，直接进行报警和/或下发报警指令给报警显示接收器进行报警，以及将待测电缆接头的实际温度及其四周的环境温度转发给报警显示接收器显示，从而不仅能够在待测电缆接头处的快速准确地反应电缆接头处温度异常情况，还能在远端通过报警显示接收器快速准确地反应电缆接头处温度异常情况。1. The present invention uses a temperature monitoring device to simultaneously monitor and display the actual temperature of the cable joint to be tested and the ambient temperature around it in real time. Once the actual temperature exceeds a certain threshold (such as 20 degrees Celsius) of the ambient temperature, an alarm will be issued and/or issued directly. The alarm command sends an alarm to the alarm display receiver, and forwards the actual temperature of the cable joint to be tested and the ambient temperature around it to the alarm display receiver for display, so that it can not only respond quickly and accurately at the cable joint to be tested In case of abnormal temperature, the receiver can quickly and accurately respond to abnormal temperature at the cable joint through the alarm display at the remote end.
2、本发明利用了TEG温差发电片产生的热量来给装置供电，环保节能，巧妙的解决了供电问题，能不受其它供电干扰，保持长期稳定的工作。2. The present invention utilizes the heat generated by the TEG thermoelectric power generation sheet to supply power to the device, which is environmentally friendly and energy-saving, cleverly solves the problem of power supply, and can maintain long-term stable work without interference from other power supplies.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，根据这些附图获得其他的附图仍属于本发明的范畴。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, obtaining other drawings based on these drawings still belongs to the scope of the present invention without any creative effort.
图1为本发明实施例提供的配电网电缆接头处温度监控系统的连接示意图；Fig. 1 is the connection diagram of the temperature monitoring system at the distribution network cable joint provided by the embodiment of the present invention;
图2为图1中温度监控装置的逻辑结构示意图；Fig. 2 is a schematic diagram of the logical structure of the temperature monitoring device in Fig. 1;
图3为图1中报警显示接收器的逻辑结构示意图。FIG. 3 is a schematic diagram of the logical structure of the alarm display receiver in FIG. 1 .
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
如图1至图3所示，为本发明实施例中提供的一种配电网电缆接头处温度监控系统，包括靠近待测电缆接头（未图示）处设置的温度监控装置1以及远离待测电缆接头处设置的报警显示接收器2，且温度监控装置1与报警显示接收器2通过无线或有线通信方式相连；其中，As shown in Figures 1 to 3, it is a temperature monitoring system at the cable joint of the distribution network provided in the embodiment of the present invention, including a temperature monitoring device 1 set near the cable joint to be tested (not shown) and a temperature monitoring device 1 away from the cable joint to be tested. The alarm display receiver 2 provided at the joint of the measuring cable, and the temperature monitoring device 1 is connected to the alarm display receiver 2 through wireless or wired communication; wherein,
温度监控装置1，用于实时采集待测电缆接头的实际温度及其对应四周的环境温度并直接显示以及转发至报警显示接收器2显示，且进一步待判定出待测电缆接头的实际温度超出待测电缆接头处四周的环境温度一定阈值（如20摄氏度）后，直接触发报警和/或下发报警指令至报警显示接收器2进行报警；The temperature monitoring device 1 is used to collect in real time the actual temperature of the cable joint to be tested and the corresponding surrounding ambient temperature, and directly display and forward it to the alarm display receiver 2 for display, and further determine that the actual temperature of the cable joint to be tested exceeds the temperature to be tested. After measuring the ambient temperature around the cable joint to a certain threshold (such as 20 degrees Celsius), an alarm is directly triggered and/or an alarm command is sent to the alarm display receiver 2 for alarm;
报警显示接收器2，用于显示温度监控装置1转发的待测电缆接头的实际温度及其对应四周的环境温度，并待接收到温度监控装置1下发的报警指令后，触发报警。The alarm display receiver 2 is used to display the actual temperature of the cable joint to be tested forwarded by the temperature monitoring device 1 and the corresponding ambient temperature around it, and trigger an alarm after receiving the alarm command issued by the temperature monitoring device 1 .
应当说明的是，温度监控装置1同时实时监测显示出待测电缆接头的实际温度及其四周的环境温度，一旦实际温度超出环境温度一定阈值后，直接进行报警，可以在待测电缆接头处的快速准确地反应电缆接头处温度异常情况，而且温度监控装置1还可以下发报警指令给报警显示接收器2进行报警，使得能在远端通过报警显示接收器2快速准确地反应电缆接头处温度异常情况。报警显示接收器2可以是固定式，也可以是手持式。It should be noted that the temperature monitoring device 1 simultaneously monitors and displays the actual temperature of the cable joint to be tested and the ambient temperature around it in real time. Once the actual temperature exceeds a certain threshold of the ambient temperature, an alarm will be issued directly. Quickly and accurately respond to the abnormal temperature at the cable joint, and the temperature monitoring device 1 can also issue an alarm command to the alarm display receiver 2 for alarm, so that the remote end can quickly and accurately respond to the temperature at the cable joint through the alarm display receiver 2 abnormal situation. The alarm display receiver 2 can be fixed or hand-held.
在本发明实施例中，如图2所示，温度监控装置1包括供电电源11，以及与供电电源11均相连的第一温度传感器12和温度监测显示仪13；其中，In the embodiment of the present invention, as shown in FIG. 2, the temperature monitoring device 1 includes a power supply 11, and a first temperature sensor 12 and a temperature monitoring display 13 connected to the power supply 11; wherein,
供电电源11，用于提供直流电压；在一个实施例中，供电电源11包括温差发电片111，以及设置在温差发电片111上的散热片112和发电片电极113；其中，发电片电极113通过导线与第一温度传感器12和温度监测显示仪13相连，这样就可以利用TEG温差发电片产生的热量来供电，环保节能，不仅巧妙的解决了供电问题，还不受其它供电干扰，保持长期稳定的工作；The power supply 11 is used to provide a DC voltage; in one embodiment, the power supply 11 includes a thermoelectric power generation sheet 111, and a heat sink 112 and a power generation sheet electrode 113 arranged on the thermoelectric power generation sheet 111; wherein, the power generation sheet electrode 113 passes through The wire is connected with the first temperature sensor 12 and the temperature monitoring and display instrument 13, so that the heat generated by the TEG thermoelectric power generation sheet can be used for power supply, which is environmentally friendly and energy-saving. work;
第一温度传感器12的一端与温度监测显示仪13相连，另一端设有位于温度监测显示器13外部并靠近待测电缆接头处的探头121，且该探头121用于实时采集待测电缆接头的实际温度；One end of the first temperature sensor 12 is connected to the temperature monitoring display instrument 13, and the other end is provided with a probe 121 positioned outside the temperature monitoring display 13 and close to the cable joint to be tested, and the probe 121 is used for real-time collection of the actual temperature of the cable joint to be tested. temperature;
温度监测显示仪13内置有第一微处理器131、以及与第一微处理器131均相连的第一无线通信单元132、第二温度传感器133、第一报警单元134和第一显示单元135，且第一无线通信单元132还与报警显示接收器2实现无线连接；其中，第一微处理器131还与第一温度传感器12相连，用于接收第一温度传感器12实时采集到的待测电缆接头的实际温度以及接收通过第二温度传感器133所采集到的待测电缆接头处四周的环境温度，并直接推送给第一显示单元135显示以及通过第一无线通信单元132转发至报警显示接收器2显示，且待判定出待测电缆接头的实际温度超出待测电缆接头处四周的环境温度一定阈值后，直接触发第一报警单元134进行报警和/或通过第一无线通信单元132下发报警指令至报警显示接收器2进行报警。The temperature monitoring and display instrument 13 has a built-in first microprocessor 131, a first wireless communication unit 132 connected to the first microprocessor 131, a second temperature sensor 133, a first alarm unit 134 and a first display unit 135, And the first wireless communication unit 132 is also wirelessly connected with the alarm display receiver 2; wherein, the first microprocessor 131 is also connected with the first temperature sensor 12, and is used to receive the cable under test collected by the first temperature sensor 12 in real time. The actual temperature of the joint and the ambient temperature around the cable joint to be tested collected by the second temperature sensor 133 are directly pushed to the first display unit 135 for display and forwarded to the alarm display receiver by the first wireless communication unit 132 2 display, and after it is determined that the actual temperature of the cable joint to be tested exceeds a certain threshold of the ambient temperature around the cable joint to be tested, the first alarm unit 134 is directly triggered to give an alarm and/or the first wireless communication unit 132 issues an alarm Command to the alarm display receiver 2 to alarm.
在本发明实施例中，如图3所示，报警显示接收器2内置有第二微处理器21、以及与第二微处理器21均相连的第二无线通信单元22、第二报警单元23和第二显示单元24；其中，In the embodiment of the present invention, as shown in FIG. 3 , the alarm display receiver 2 has a built-in second microprocessor 21, a second wireless communication unit 22 and a second alarm unit 23 connected to the second microprocessor 21. and the second display unit 24; wherein,
第二无线通信单元22与温度监测显示仪13内置的第一无线通信单元132实现无线通信连接，用于接收温度监测显示仪13转发的待测电缆接头的实际温度及其对应的环境温度以及接收温度监测显示仪13下发的报警指令，并直接送入第二微处理器22中；第二微处理器21，用于将接收到的待测电缆接头的实际温度及其对应的环境温度推送给第二显示单元24显示，以及根据所接收到的报警指令触发第二报警单元23进行报警。The second wireless communication unit 22 realizes the wireless communication connection with the built-in first wireless communication unit 132 of the temperature monitoring and displaying instrument 13, and is used to receive the actual temperature of the cable joint to be tested and the corresponding ambient temperature and the receiving temperature transmitted by the temperature monitoring and displaying instrument 13. The alarm command issued by the temperature monitoring and display instrument 13 is directly sent to the second microprocessor 22; the second microprocessor 21 is used to push the received actual temperature of the cable joint to be tested and its corresponding ambient temperature display to the second display unit 24, and trigger the second alarm unit 23 to give an alarm according to the received alarm instruction.
在本发明实施例中，第一无线通信单元132和第二无线通信单元23为相对设置的WIFI无线通信模块或4G\5G无线通信模块。应当说明的是，第一无线通信单元132和第二无线通信单元23还包括ZigBee等其它无线通信模块。In the embodiment of the present invention, the first wireless communication unit 132 and the second wireless communication unit 23 are WIFI wireless communication modules or 4G\5G wireless communication modules arranged opposite to each other. It should be noted that the first wireless communication unit 132 and the second wireless communication unit 23 also include other wireless communication modules such as ZigBee.
在本发明实施例中，第一报警单元134和第二报警单元23为蜂鸣器或指示灯，即通过蜂鸣器蜂鸣或指示灯点亮来实现报警。第一显示单元135和第二显示单元24均为液晶显示屏。In the embodiment of the present invention, the first alarm unit 134 and the second alarm unit 23 are buzzers or indicator lights, that is, the alarm is realized by the buzzer beeping or the indicator lights being on. Both the first display unit 135 and the second display unit 24 are liquid crystal display screens.
本发明实施例中的配电网电缆接头处温度监控系统的工作原理为：将温度监控装置1放置待测电缆的接头处，供电电源11给温度监控装置1所有的模块进行供电，使得第一温度传感器12延伸出温度监控装置1外部的探头121能实时采集到的待测电缆接头的实际温度，内置温度监控装置1中的第二温度传感器133所采集到的待测电缆接头处四周的环境温度，通过第一显示单元135将待测电缆接头的实际温度及其对应的环境温度显示，同时也可以通过第一无线通信单元132转发至报警显示接收器2并通过第二显示单元24显示，这样不仅近端还是远端都能及时观察待测电缆接头及其周围的温度情况。The working principle of the temperature monitoring system at the cable joint of the distribution network in the embodiment of the present invention is: the temperature monitoring device 1 is placed at the joint of the cable to be tested, and the power supply 11 supplies power to all modules of the temperature monitoring device 1, so that the first The temperature sensor 12 extends out the actual temperature of the cable joint to be tested that can be collected in real time by the probe 121 outside the temperature monitoring device 1, and the environment around the cable joint to be tested collected by the second temperature sensor 133 in the built-in temperature monitoring device 1 Temperature, through the first display unit 135, the actual temperature of the cable joint to be tested and its corresponding ambient temperature are displayed, and at the same time, it can also be forwarded to the alarm display receiver 2 through the first wireless communication unit 132 and displayed through the second display unit 24, In this way, not only the near end but also the far end can observe the temperature conditions of the cable joint to be tested and its surroundings in time.
一旦待测电缆接头的实际温度超出待测电缆接头处四周的环境温度一定阈值后，内置温度监控装置1的第一报警单元134触发报警，同时也可以下发报警指令给报警显示接收器2并通过第二报警单元23进行报警，这样不仅在待测电缆接头处的快速准确地反应电缆接头处温度异常情况，还能在远端通过报警显示接收器快速准确地反应电缆接头处温度异常情况。Once the actual temperature of the cable joint to be tested exceeds a certain threshold value of the ambient temperature around the cable joint to be tested, the first alarm unit 134 of the built-in temperature monitoring device 1 triggers an alarm, and can also issue an alarm command to the alarm display receiver 2 and The second alarm unit 23 gives an alarm, so that not only the temperature abnormality at the cable joint to be tested can be quickly and accurately reflected at the cable joint, but also the abnormal temperature at the cable joint can be quickly and accurately reflected at the remote end through the alarm display receiver.
实施本发明实施例，具有如下有益效果：Implementing the embodiment of the present invention has the following beneficial effects:
1、本发明采用温度监控装置同时实时监测显示出待测电缆接头的实际温度及其四周的环境温度，一旦实际温度超出环境温度一定阈值（如20摄氏度）后，直接进行报警和/或下发报警指令给报警显示接收器进行报警，以及将待测电缆接头的实际温度及其四周的环境温度转发给报警显示接收器显示，从而不仅能够在待测电缆接头处的快速准确地反应电缆接头处温度异常情况，还能在远端通过报警显示接收器快速准确地反应电缆接头处温度异常情况。1. The present invention uses a temperature monitoring device to simultaneously monitor and display the actual temperature of the cable joint to be tested and the ambient temperature around it in real time. Once the actual temperature exceeds a certain threshold (such as 20 degrees Celsius) of the ambient temperature, an alarm will be issued and/or issued directly. The alarm command sends an alarm to the alarm display receiver, and forwards the actual temperature of the cable joint to be tested and the ambient temperature around it to the alarm display receiver for display, so that it can not only respond quickly and accurately at the cable joint to be tested In case of abnormal temperature, the receiver can quickly and accurately respond to abnormal temperature at the cable joint through the alarm display at the remote end.
2、本发明利用了TEG温差发电片产生的热量来给装置供电，环保节能，巧妙的解决了供电问题，能不受其它供电干扰，保持长期稳定的工作。2. The present invention utilizes the heat generated by the TEG thermoelectric power generation sheet to supply power to the device, which is environmentally friendly and energy-saving, cleverly solves the problem of power supply, and can maintain long-term stable work without interference from other power supplies.
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。The above disclosure is only a preferred embodiment of the present invention, which certainly cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.
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