Method and system suitable for collecting temperature and humidity online monitoring signals of cable core of distribution cable connector
A technology for power distribution cables and monitoring signals, which is applied in the field of methods and systems for online monitoring signals of temperature and humidity of power distribution cable connectors, and can solve the problems of limited service life, low efficiency and unsafety, and increased monitoring power consumption and cost. and other issues to achieve the effect of reducing power consumption and cost
Active Publication Date: 2020-04-17
四川瑞霆智汇科技有限公司
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Problems solved by technology
However, the above existing technical solutions have the following defects: the offline mode is inefficient and unsafe; the online mode cannot accurately measure the temperature and humidity of the cable core at the actual heating connection point (especially the difference between the real temperature of the heating point and the measured temperature can even reach more than 50°C ), one GPRS module for one connection point will also lead to increased monitoring power consumption and cost, and the service life of the measurement device and GPRS module will be limited if it is powered by batteries
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[0041] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0042] refer to figure 1 , figure 1 It is a flow chart of a method for collecting temperature and humidity online monitoring signals of the cable core of the distribution cable connector disclosed by the present invention, including steps:
[0043] 101. Obtain the temperature and humidity data at the corresponding position through the temperature and humidity sensor arranged at the cable core of the cable connector.
[0044] In this embodiment, the heating point of the power transmission cable is concentrated at the cable core of the above-mentioned cable connection point. By covering the cable core with a layer of conductor connection tube, and then attaching the above-mentioned temperature and humidity sensor to the conductor connection tube, it can be as possible as possible. It may be close to the cable connection point, measure the temperature and humi...
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The invention relates to a method and a system suitable for acquiring temperature and humidity online monitoring signals of a cable core of a power distribution cable connector. The method comprises steps that temperature and humidity data of the corresponding position are obtained through a temperature and humidity sensor arranged at the cable core of the cable connector; a data collection node collects the temperature and humidity data in a polling mode in a wireless mode and uploads the temperature and humidity data to an access node in a multi-hop mode; the access node processes the received temperature and humidity data and then transmits the processed temperature and humidity data to a server for online monitoring of temperature and humidity. The method is advantaged in that the wireless temperature and humidity sensor is arranged close to the cable core of the cable connector, the temperature and humidity data of the wireless temperature and humidity sensor are acquired by the data acquisition node in a wireless polling manner, the access node processes the data and transmits the processed data to the remote server for online monitoring, so the real temperature and humidityof a heating point can be monitored remotely, and power consumption and cost of online monitoring data acquisition are reduced.
Description
technical field [0001] The invention relates to the technical field of power cable state monitoring, in particular to an acquisition method and system suitable for on-line monitoring signals of cable core temperature and humidity at connectors of distribution cables. Background technique [0002] At present, monitoring the operating temperature and humidity of distribution network cables has always been a difficult problem in the world. Every year, cable combustion and explosion accidents occur, especially at the three-phase connection points of high-voltage and ultra-high-voltage transmission cables. In recent years, the State Grid has also focused on solving the problem of online temperature and humidity monitoring of transmission lines. [0003] The existing way to solve the above problems is mainly to monitor the surface temperature and humidity of the three-phase connection point of the cable through a battery-powered cable temperature and humidity monitoring device, an...
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IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 李家建梁俊韩涛顾泽玉朱宇辰
Owner 四川瑞霆智汇科技有限公司