Abstract
As a comprehensive utilization of pipeline resources, communication intelligent manhole cover (CIMC) can effectively real-time monitor communication manhole cover and protect the safety of communication pipeline. Due to the complex working environment of manhole cover and the random error of sensor, the traditional monitoring method usual leads to frequent false alarm in actual applications. In order to ensure the monitoring service quality and improve the service efficiency, a new alarm method of CIMC with multiple event fusion in this paper via jointing analysis of multi-sensor status signals is proposed based on the equipment status signals generated by the CIMC terminal and abnormal alarm events definition. The experimental result shows that the proposed CIMC alarm method by means of multiple sensor signals in this paper can not only make up for the defect of a single sensor, but also reduces the false alarm rate caused by the random error of sensor and CIMC system. It can promote the intelligent monitoring efficiency of the manhole cover and be conducive to the construction of intelligent transportation and smart city.
Highlights
Given the rapid growth of communication manhole covers with the acceleration of urbanization [1, 2], it is more and more difficult to manage the road safety with high automation and intelligence
5 Results and discussion In the simulation test of alarm method for the communication manhole cover, firstly the simulation transmission of the state signal from the manhole cover terminal is completed by the serial port debugging assistant (SSCOM)
Compared with the existing alarm method, the proposed communication intelligent manhole cover (CIMC) alarm method can both perform the transmission of state signal, generate, and push the alarm events
Summary
Given the rapid growth of communication manhole covers with the acceleration of urbanization [1, 2], it is more and more difficult to manage the road safety with high automation and intelligence. A smart manhole cover monitoring system based on NB-IoT can judge the open state of the communication manhole cover by collecting and reporting the parameters of the manhole cover and downhole environment [39] This method can reduce false alarms caused by sensor and communication random errors in terms of the average value after multiple tests, the signal of a single sensor often cannot reflect the true state of the communication manhole cover. Providing a comprehensive solution strategy contains manhole cover terminal, web platform and mobile phone APP, etc In this method, the energy consumption is extremely low via taking advantage of the advanced power management mode. The energy consumption is extremely low via taking advantage of the advanced power management mode It can display the detailed information contain personnel and communication manhole cover based on GIS map positioning and hierarchical color separation. It has not effectively processed the sensor signal and leads to a certain error in the subsequent alarm judgment
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