Affected by typhoon landfall, thunderstorms occur frequently, and lightning strikes are a great threat to buildings, high-speed railways, and rail transit, and have brought huge losses to social and personal safety. Today (September 24), the reporter learned from Yangzhou University that in order to do a good job in the lightning protection of the urban rail transit signal system and improve the technical level of the society's lightning detection equipment, the "Zhi'an Tianxia" lightning protection research team of the School of Electric Energy of Yangzhou University has designed and developed a new type of "new lightning protection device quality detector", which has a low cost but huge economic benefits, and has been put into use in many places, with good results.
"When thunderstorms occur frequently, there will be hidden dangers of lightning strike problems in many places such as telephone poles, broadcast signal towers, 5G base stations, and grounding poles along railway lines, and the 'new lightning protection device quality detector' produced by our team will come in handy." Team leader Li Mingjun introduced.
The new device with unmanned automatic inspection and remote communication function, in the case of flood congestion, inconvenient traffic and other factors caused by workers can not reach the scene for lightning protection detection, can be "brilliant", relying on adaptive detection algorithms, in the case of unattended to complete the autonomous lightning protection detection, and the data is transmitted to the supporting mobile phone client.
Yesterday, the reporter saw this "new lightning protection device quality detector", only to see the members of the detector two clamps clamped on the two poles of the lightning protection grounding resistance, and then press the switch, the LED light on the panel will light up, through three colors to show the quality status of the lightning protection grounding resistance. If it is a green light, it indicates that the ground resistance performance is good; both the red light and the yellow light indicate that the performance of the ground resistance is aging or damaged.
It is reported that the team relies on adaptive current excitation algorithm, current ladder switching algorithm and battery fine management algorithm to develop this new lightning detector. The device has been handed over to Yangzhou Huafeng Lightning Protection New Technology Co., Ltd. in the early stage of the high-speed rail Guangzhou section, Nanchang section, Huizhou section and other places put into use, the service mileage reached 1600 kilometers, monitoring communication base station 230, the use of good effect.
"The device reduces the probability of lightning strikes by our company's lightning protection products by 15%, and the cost is only about 1/4 of the lightning protection products, which is low cost, economical and social benefits, which is a good example of industry-university-research cooperation." Cai Renfeng, general manager of the company, said.
The project has applied for two invention patents, and won the second prize of the 17th "Challenge Cup" National Extracurricular Academic Science and Technology Works Competition for College Students this summer in Jiangsu Province.
Team instructor Jiang Wei told reporters that the team will combine the cloud database monitoring system in the later stage to send the data of each lightning protection device to the mobile client "Zhi'an Tianxia" APP through 5G data transmission technology, and efficiently and conveniently realize the cloud data collection and feedback of the embedded "Zhi'an Tianxia" detector.
At the same time, the team will extend the scope of research to railway lines in the western region, study the key technologies of lightning protection of railway signaling systems, and use the knowledge learned to help the construction of the Belt and Road.
(Source: Zero Distance Reporter/Hu Yan Editor/Gao Ruoting)
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