An integrated IoT smart manhole cover

Abstract

The invention discloses an integrated Internet of Things smart manhole cover, which includes a manhole cover body and a functional circuit system installed on the manhole cover body; the functional circuit system includes a manhole cover position sensor, a controller, a LoRa module and a power module; the controller adopts Bluetooth The system-on-chip BLE SoC includes a Bluetooth wireless transceiver interface and a UART interface. The Bluetooth wireless transceiver interface is connected to a Bluetooth antenna. The UART interface is connected to the LoRa module. The LoRa module is equipped with a wireless transceiver antenna. The power module is a manhole cover position sensor and controller. and the LoRa module to provide working power; the manhole cover body is provided with an antenna installation window. The upper part of the antenna installation window is provided with a plurality of reinforcing ribs with both ends fixed in the manhole cover body. A fiberglass baffle is provided below the reinforcing ribs. The LoRa module The wireless transceiver antenna is fixed below the fiberglass baffle and located between the vertical projections of two adjacent reinforcing bars. The present invention uses LoRa Internet of Things technology to realize Internet of Things networking and real-time monitoring of manhole covers, with low power consumption, low cost and excellent real-time performance.

Description

technical field [0001] The invention relates to the technical field of manhole covers in municipal public facilities, in particular to an integrated IoT smart manhole cover. Background technique [0002] At present, with the acceleration of urbanization, the construction of municipal public facilities is developing rapidly, and the number of underground pipes to manhole covers in urban water supply, drainage, gas, heat, real estate, electric power, telecommunications, radio and television and other departments is huge and widely distributed. Due to the lack of effective real-time monitoring and management methods, crimes such as prying open manhole covers to steal cables or manhole covers, damages, and rainwater washing away manhole covers occur from time to time, which not only affects the normal work of related lines or pipelines, but also causes huge direct damage. Or indirect economic loss, and the wellhead of the lost manhole cover will also cause great harm to vehicles...

AI Technical Summary

Problems solved by technology

[0005] 1) The device cost is high, not suitable for large-scale application

[0006] The existing smart manhole covers partially use ultrasonic sensors, tilt sensors, and pressure sensors to detect the movement of manhole covers. In normal conditions, the power supply to the sensors needs to be maintained, and the cost of sensors and corresponding detection circuits is relatively high.

In addition, ultrasonic sensors, tilt sensors or disconnection detection sensing circuits are prone to misjudgment and alarm when the vehicle rolls over the manhole cover, which affects the anti-theft application;

[0007] 2) The power consumption of the device is high, and the performance is not practical

[0008] The main purpose of manhole cover monitoring is to detect the presence or absence of manhole covers (whether it is stolen or washed away). Some smart manhole covers have added water level monitoring functions, and can remotely realize the function of manhole cover closing and opening, especially the latter, which requires a higher power drive mechanism. However, the practical value is not large, and the power consumption of the device will be increased, which will also increase the troublesomeness of the on-site personnel to open the manhole cover.

In addition, in order to save power consumption, some manhole covers do not work normally, and only work when abnormalities (stolen or washed away) occur. The monitoring system cannot know the daily status of the device, and cannot judge whether the device itself has failed;

[0009] 3) Using GPRS communication, high operation and maintenance costs

[0010] The existing intelligent manhole covers and monitoring systems mostly use GPRS communication or Beidou communication, which need to be used for a fee. When the number of manhole covers is large, the daily operation cost is a big burden on the management department; in addition, GPRS communication or Beidou communication The high power consumption of the communication module will inevitably lead to the need to configure a large-capacity power supply or use mains power, further increasing system costs and construction and installation costs;

[0011] 4) Insufficient Internet of Things functions

[0013] 5) Insufficient functional scalability

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