CN110836727A - Cable joint temperature detection system based on wireless transmission and detection method thereof - Google Patents

Abstract

Translated fromChinese

本发明提供了一种基于无线传输的电缆接头温度检测系统，所述温度检测系统包括信号采集单元、数据集中器、监控中心；所述温度检测系统采用无线通信技术将多个所述信号采集单元采集的温度信号传输至所述数据集中器，并与预先设定的报警值进行比较判断，若发生异常及时发出报警并上传至所述监控中心。本发明提供一种基于无线传输的电缆接头温度检测系统和方法，将温度传感器直接浇注在所述电缆附件中，与所述电缆直接接触，同时采用无线通讯技术将采集的温度信号上传至监控中心，提高测量的准确性。

The invention provides a cable joint temperature detection system based on wireless transmission. The temperature detection system includes a signal acquisition unit, a data concentrator and a monitoring center; the temperature detection system adopts wireless communication technology to connect a plurality of the signal acquisition units. The collected temperature signal is transmitted to the data concentrator, and is compared and judged with the preset alarm value. If an abnormality occurs, an alarm is issued in time and uploaded to the monitoring center. The invention provides a cable joint temperature detection system and method based on wireless transmission. The temperature sensor is directly poured into the cable accessory and directly contacts the cable, and the collected temperature signal is uploaded to the monitoring center by using the wireless communication technology. , to improve the accuracy of measurement.

Description

Translated fromChinese

一种基于无线传输的电缆接头温度检测系统及其检测方法A cable joint temperature detection system and detection method based on wireless transmission

技术领域technical field

本发明属于电力检测技术领域，特别涉及一种基于无线传输的电缆接头温度检测系统及其检测方法。The invention belongs to the technical field of electric power detection, and in particular relates to a cable joint temperature detection system based on wireless transmission and a detection method thereof.

背景技术Background technique

随着科学技术的不断发展，人们对电力的需求也越来越高，进而对供电可靠性要求也在不断提高。电力电缆作为电力系统的重要组成部分，安全可靠运行是供电可靠性的重要保障。With the continuous development of science and technology, people's demand for electricity is also getting higher and higher, and the requirements for the reliability of power supply are also increasing. As an important part of the power system, the safe and reliable operation of the power cable is an important guarantee for the reliability of the power supply.

在电力系统中各种电缆接头数量多，分布广泛，工作环境复杂，会由于接触电阻过大而发热进而导致局部温度过高，甚至烧毁，引发火灾和大面积停电。目前市场上已有的电缆接头温度检测系统大多采用独立的测温传感器，传感器通过捆扎等方式安装在电缆头的外表层上。设备运行一段时间后，传感器不牢固，且仅与电缆头外表接触，温度测量不准确。In the power system, the number of various cable joints is large, widely distributed, and the working environment is complex. Due to the excessive contact resistance, heat will be generated, which will lead to excessive local temperature, or even burn out, resulting in fire and large-scale power outages. At present, most of the existing cable joint temperature detection systems on the market use an independent temperature measurement sensor, and the sensor is installed on the outer layer of the cable head by bundling or the like. After the equipment runs for a period of time, the sensor is not firm, and only contacts the outer surface of the cable head, and the temperature measurement is inaccurate.

本发明提出基于无线传输的电缆接头温度检测系统，将温度传感器直接浇注在所述电缆附件中，与所述电缆直接接触，同时采用无线通讯技术将采集的温度信号上传至监控中心，提高测量的准确性。The present invention proposes a cable joint temperature detection system based on wireless transmission. The temperature sensor is directly poured into the cable accessory to be in direct contact with the cable. At the same time, wireless communication technology is used to upload the collected temperature signal to the monitoring center, thereby improving the measurement accuracy. accuracy.

发明内容SUMMARY OF THE INVENTION

本发明提供一种基于无线传输的电缆接头温度检测系统和方法，将温度传感器直接浇注在所述电缆附件中，与所述电缆直接接触，同时采用无线通讯技术将采集的温度信号上传至监控中心，提高测量的准确性。The invention provides a cable joint temperature detection system and method based on wireless transmission. The temperature sensor is directly poured into the cable accessory and directly contacts the cable, and the collected temperature signal is uploaded to the monitoring center by using wireless communication technology. , to improve the measurement accuracy.

本发明具体为一种基于无线传输的电缆接头温度检测系统，所述温度检测系统包括信号采集单元、数据集中器、监控中心，所述信号采集单元与所述数据集中器、所述监控中心顺序连接；所述温度检测系统采用无线通信技术将多个所述信号采集单元采集的温度信号传输至所述数据集中器，并与预先设定的报警值进行比较判断，若发生异常及时发出报警并上传至所述监控中心。The present invention is specifically a cable joint temperature detection system based on wireless transmission. The temperature detection system includes a signal acquisition unit, a data concentrator, and a monitoring center. The signal acquisition unit is in sequence with the data concentrator and the monitoring center. connection; the temperature detection system adopts wireless communication technology to transmit the temperature signals collected by a plurality of the signal acquisition units to the data concentrator, and compares and judges with the preset alarm value. Upload to the monitoring center.

所述信号采集单元包括温度传感器、A/D转换模块、第一控制器、无线通信模块，所述温度传感器采用数字式传感器，所述温度传感器直接浇注在所述电缆附件中，与所述电缆直接接触，能够准确测量温度；The signal acquisition unit includes a temperature sensor, an A/D conversion module, a first controller, and a wireless communication module. The temperature sensor adopts a digital sensor, and the temperature sensor is directly cast in the cable accessory and is connected with the cable. Direct contact can accurately measure temperature;

所述A/D转换模块将采集的温度信号转换为数字信号；The A/D conversion module converts the collected temperature signal into a digital signal;

所述第一控制器根据控制信号控制所述温度传感器的工作状态；所述无线通信模块采用ZigBee无线通信技术将所述温度信号传递至所述数据集中器，所述无线通信模块还接收控制指令。The first controller controls the working state of the temperature sensor according to the control signal; the wireless communication module uses ZigBee wireless communication technology to transmit the temperature signal to the data concentrator, and the wireless communication module also receives control instructions .

所述数据集中器包括信号接收模块、第二控制器、存储模块、按键输入模块、显示模块、报警模块和通讯模块，所述第二控制器分别与所述信号接收模块、所述存储模块、所述按键输入模块、显所述示模块、所述报警模块和所述通讯模块相连接；所述信号接收模块接收所述信号采集单元上传的信息，经过所述存储模块进行信息存储，所述第二控制器将温度信号并与预先设定的报警值进行比较判断，若所述温度信号大于所述报警值，通过所述报警模块发出报警信号；所述通讯模块采用GPRS技术将处理后的所述温度信号和所述报警信号上传至所述监控中心；The data concentrator includes a signal receiving module, a second controller, a storage module, a key input module, a display module, an alarm module and a communication module, and the second controller is respectively connected to the signal receiving module, the storage module, the The key input module, the display module, the alarm module and the communication module are connected; the signal receiving module receives the information uploaded by the signal acquisition unit, and stores the information through the storage module. The second controller compares and judges the temperature signal with the preset alarm value. If the temperature signal is greater than the alarm value, an alarm signal is sent through the alarm module; the communication module adopts GPRS technology to The temperature signal and the alarm signal are uploaded to the monitoring center;

所述按键输入模块结合所述显示单元能够实现参数设定、所述温度信息和所述报警信息的查阅，所述参数包括所述报警值和监测周期；The key input module combined with the display unit can realize parameter setting, the temperature information and the reference of the alarm information, and the parameters include the alarm value and the monitoring period;

一个所述数据集中器能够采集多个所述信号采集单元的输出信号，所述数据集中器与所述信号采集单元距离小于500米。One of the data concentrators can collect output signals of a plurality of the signal acquisition units, and the distance between the data concentrator and the signal acquisition units is less than 500 meters.

所述监控中心接收所述数据集中器上传的信息，实现对所述电缆接头温度的实时监控，同时能够远程设置所述参数，能够通过所述数据集中器向所述温度传感器发送指令信号。The monitoring center receives the information uploaded by the data concentrator, realizes real-time monitoring of the temperature of the cable joint, and at the same time can remotely set the parameters, and can send an instruction signal to the temperature sensor through the data concentrator.

本发明还提供一种基于无线传输的电缆接头温度检测系统的检测方法，所述检测方法包括如下步骤：The present invention also provides a detection method of a cable joint temperature detection system based on wireless transmission, the detection method comprising the following steps:

步骤(1)：所述温度传感器采集所述电缆接头的温度信号；Step (1): the temperature sensor collects the temperature signal of the cable joint;

步骤(2)：经过所述A/D转换模块进行A/D转换；Step (2): carry out A/D conversion through the A/D conversion module;

步骤(3)：经过所述无线通信模块将所述温度信号传输至所述数据集中器；Step (3): transmitting the temperature signal to the data concentrator through the wireless communication module;

步骤(4)：经过所述存储模块进行信息存储；Step (4): carry out information storage through the storage module;

步骤(5)：所述第二控制器将采集信息与所述报警值进行比较：若大于所述报警值，通过所述报警单元发出报警信号，并进行存储显示；Step (5): the second controller compares the collected information with the alarm value: if it is greater than the alarm value, an alarm signal is sent through the alarm unit, and is stored and displayed;

步骤(6)：通过所述通讯模块将所述温度信息和所述报警信号上传至所述监控中心。Step (6): upload the temperature information and the alarm signal to the monitoring center through the communication module.

附图说明Description of drawings

图1为本发明一种基于无线传输的电缆接头温度检测系统的结构示意图。FIG. 1 is a schematic structural diagram of a cable joint temperature detection system based on wireless transmission of the present invention.

具体实施方式Detailed ways

下面结合附图对本发明一种基于无线传输的电缆接头温度检测系统的具体实施方式做详细阐述。The specific embodiments of a cable joint temperature detection system based on wireless transmission of the present invention will be described in detail below with reference to the accompanying drawings.

如图1所示，本发明的温度检测系统包括信号采集单元、数据集中器、监控中心，所述信号采集单元与所述数据集中器、所述监控中心顺序连接；所述温度检测系统采用无线通信技术将多个所述信号采集单元采集的温度信号传输至所述数据集中器，并与预先设定的报警值进行比较判断，若发生异常及时发出报警并上传至所述监控中心。As shown in FIG. 1 , the temperature detection system of the present invention includes a signal acquisition unit, a data concentrator, and a monitoring center. The signal acquisition unit is sequentially connected to the data concentrator and the monitoring center; the temperature detection system adopts wireless The communication technology transmits the temperature signals collected by a plurality of the signal acquisition units to the data concentrator, and compares and judges with the preset alarm value. If an abnormality occurs, an alarm is issued in time and uploaded to the monitoring center.

所述信号采集单元包括温度传感器、A/D转换模块、第一控制器、无线通信模块，所述温度传感器采用数字式传感器，所述温度传感器直接浇注在所述电缆附件中，与所述电缆直接接触，能够准确测量温度；The signal acquisition unit includes a temperature sensor, an A/D conversion module, a first controller, and a wireless communication module. The temperature sensor adopts a digital sensor, and the temperature sensor is directly cast in the cable accessory and is connected with the cable. Direct contact can accurately measure temperature;

所述A/D转换模块将采集的温度信号转换为数字信号；The A/D conversion module converts the collected temperature signal into a digital signal;

所述第一控制器根据控制信号控制所述温度传感器的工作状态；所述无线通信模块采用ZigBee无线通信技术将所述温度信号传递至所述数据集中器，所述无线通信模块还接收控制指令。The first controller controls the working state of the temperature sensor according to the control signal; the wireless communication module uses ZigBee wireless communication technology to transmit the temperature signal to the data concentrator, and the wireless communication module also receives control instructions .

所述数据集中器包括信号接收模块、第二控制器、存储模块、按键输入模块、显示模块、报警模块和通讯模块，所述第二控制器分别与所述信号接收模块、所述存储模块、所述按键输入模块、显所述示模块、所述报警模块和所述通讯模块相连接；所述信号接收模块接收所述信号采集单元上传的信息，经过所述存储模块进行信息存储，所述第二控制器将温度信号并与预先设定的报警值进行比较判断，若所述温度信号大于所述报警值，通过所述报警模块发出报警信号；所述通讯模块采用GPRS技术将处理后的所述温度信号和所述报警信号上传至所述监控中心；The data concentrator includes a signal receiving module, a second controller, a storage module, a key input module, a display module, an alarm module and a communication module, and the second controller is respectively connected to the signal receiving module, the storage module, the The key input module, the display module, the alarm module and the communication module are connected; the signal receiving module receives the information uploaded by the signal acquisition unit, and stores the information through the storage module. The second controller compares and judges the temperature signal with the preset alarm value. If the temperature signal is greater than the alarm value, an alarm signal is sent through the alarm module; the communication module adopts GPRS technology to The temperature signal and the alarm signal are uploaded to the monitoring center;

所述按键输入模块结合所述显示单元能够实现参数设定、所述温度信息和所述报警信息的查阅，所述参数包括所述报警值和监测周期；The key input module combined with the display unit can realize parameter setting, the temperature information and the reference of the alarm information, and the parameters include the alarm value and the monitoring period;

一个所述数据集中器能够采集多个所述信号采集单元的输出信号，所述数据集中器与所述信号采集单元距离小于500米。One of the data concentrators can collect output signals of a plurality of the signal acquisition units, and the distance between the data concentrator and the signal acquisition units is less than 500 meters.

所述监控中心接收所述数据集中器上传的信息，实现对所述电缆接头温度的实时监控，同时能够远程设置所述参数，能够通过所述数据集中器向所述温度传感器发送指令信号。The monitoring center receives the information uploaded by the data concentrator, realizes real-time monitoring of the temperature of the cable joint, and at the same time can remotely set the parameters, and can send an instruction signal to the temperature sensor through the data concentrator.

本发明还提供一种基于无线传输的电缆接头温度检测系统的检测方法，所述检测方法包括如下步骤：The present invention also provides a detection method of a cable joint temperature detection system based on wireless transmission, the detection method comprising the following steps:

步骤(1)：所述温度传感器采集所述电缆接头的温度信号；Step (1): the temperature sensor collects the temperature signal of the cable joint;

步骤(2)：经过所述A/D转换模块进行A/D转换；Step (2): carry out A/D conversion through the A/D conversion module;

步骤(3)：经过所述无线通信模块将所述温度信号传输至所述数据集中器；Step (3): transmitting the temperature signal to the data concentrator through the wireless communication module;

步骤(4)：经过所述存储模块进行信息存储；Step (4): carry out information storage through the storage module;

步骤(5)：所述第二控制器将采集信息与所述报警值进行比较：若大于所述报警值，通过所述报警单元发出报警信号，并进行存储显示；Step (5): the second controller compares the collected information with the alarm value: if it is greater than the alarm value, an alarm signal is sent through the alarm unit, and is stored and displayed;

步骤(6)：通过所述通讯模块将所述温度信息和所述报警信号上传至所述监控中心。Step (6): upload the temperature information and the alarm signal to the monitoring center through the communication module.

最后应该说明的是，结合上述实施例仅说明本发明的技术方案而非对其限制。所属领域的普通技术人员应当理解到，本领域技术人员可以对本发明的具体实施方式进行修改或者等同替换，但这些修改或变更均在申请待批的权利要求保护范围之中。Finally, it should be noted that the technical solutions of the present invention are only described in conjunction with the above embodiments, but not limited thereto. Those skilled in the art should understand that those skilled in the art can modify or equivalently replace the specific embodiments of the present invention, but these modifications or changes are all within the protection scope of the pending claims.

Claims (5)

1. A cable joint temperature detection system based on wireless transmission is characterized by comprising a signal acquisition unit, a data concentrator and a monitoring center, wherein the signal acquisition unit is sequentially connected with the data concentrator and the monitoring center; the temperature detection system adopts a wireless communication technology to transmit a plurality of temperature signals acquired by the signal acquisition units to the data concentrator, compares the temperature signals with a preset alarm value for judgment, and timely sends out an alarm and uploads the alarm to the monitoring center if an abnormity occurs.

2. The system for detecting the temperature of the cable joint based on the wireless transmission is characterized in that the signal acquisition unit comprises a temperature sensor, an A/D conversion module, a first controller and a wireless communication module, the temperature sensor adopts a digital sensor, and the temperature sensor is directly cast in the cable accessory and is in direct contact with the cable, so that the temperature can be accurately measured;

the A/D conversion module converts the acquired temperature signal into a digital signal;

the first controller controls the working state of the temperature sensor according to the control signal; the wireless communication module transmits the temperature signal to the data concentrator by adopting a ZigBee wireless communication technology, and the wireless communication module also receives a control instruction.

3. The system for detecting the temperature of the cable joint based on the wireless transmission is characterized in that the data concentrator comprises a signal receiving module, a second controller, a storage module, a key input module, a display module, an alarm module and a communication module, wherein the second controller is respectively connected with the signal receiving module, the storage module, the key input module, the display module, the alarm module and the communication module; the signal receiving module receives the information uploaded by the signal acquisition unit, the information is stored through the storage module, the second controller compares and judges a temperature signal with a preset alarm value, and if the temperature signal is greater than the alarm value, an alarm signal is sent out through the alarm module; the communication module uploads the processed temperature signal and the processed alarm signal to the monitoring center by adopting a GPRS technology;

the key input module is combined with the display unit to realize parameter setting, temperature information and alarm information consulting, and the parameters comprise the alarm value and the monitoring period;

one data concentrator can collect output signals of a plurality of signal acquisition units, and the distance between the data concentrator and the signal acquisition units is less than 500 meters.

4. The system according to claim 3, wherein the monitoring center receives information uploaded by the data concentrator, so as to realize real-time monitoring of the temperature of the cable joint, and at the same time, the parameters can be set remotely, and command signals can be sent to the temperature sensor through the data concentrator.

5. The method for detecting the cable joint temperature detection system based on wireless transmission according to any one of claims 1-4, wherein the method comprises the following steps:

step (1): the temperature sensor collects a temperature signal of the cable joint;

step (2): A/D conversion is carried out through the A/D conversion module;

and (3): transmitting the temperature signal to the data concentrator via the wireless communication module;

and (4): storing information through the storage module;

and (5): the second controller compares the collected information with the alarm value: if the alarm value is larger than the alarm value, an alarm signal is sent out through the alarm unit, and storage and display are carried out;

and (6): and uploading the temperature information and the alarm signal to the monitoring center through the communication module.