IOT-based all-weather intelligent well lid and information transferring system thereof

Abstract

The invention relates to an IOT-based all-weather intelligent well lid and an information transferring system thereof. The intelligent well lid comprises a quasi-intelligent well head device, a single transducer type reflecting ultrasonic underground sensor, a wireless transmitting-receiving and control device, a directional antenna device and a high-power physical power supply device and belongs to the technical field of municipal energy-saving environmental protection. The single transducer type reflecting ultrasonic underground sensor is fit for being mounted in a narrow space; the quasi-intelligent well head device is composed of a well lid, a well lid support, a quasi-insulating sealing isolating ring, a groove, a deicing snow-melting agent, an antifreezing agent, an interference electromagnetic wave absorbing layer, a red brick, a pavement made of concrete or asphalt material and a mixture thereof and a well wall (96); the quasi-insulating sealing isolating ring (200) at least comprises two hollow scrap tires, a rubber sticking layer, an antifreezing solution, a rubber sealing pipe and a swellable material; the directional antenna device comprises a dipole antenna, a directional reflecting plate, a directional reflecting adjusting plate, a slide rail, a fixing card and a metal flexible conduit; the dipole antenna is made of ABS engineering plastics plated with a silver-copper alloy.

Description

technical field [0001] The invention relates to an intelligent manhole cover and its information transmission system, in particular to an all-weather working intelligent manhole cover and its information transmission system based on the Internet of Things, belonging to the technical field of municipal energy conservation and environmental protection. It is a smart manhole cover and its information transmission system using non-contact multifunctional sensors. It has low cost, good mechanical vibration resistance, good accuracy, long-term stability, high reliability and long life. It can not only be used in municipal road wells with metal manhole covers and non-metal manhole covers, but also can be installed in telecommunication wells with double-layer metal manhole covers and non-metal manhole covers. [0002] A smart manhole cover and its information transmission system based on the Internet of Things that can work around the clock is based on a low-cost single-transducer ref...

AI Technical Summary

Problems solved by technology

[0004] CN201320566617 discloses a structure of an intelligent manhole cover device, which includes a well way and a well cover; an attitude detection module, which is fixed on the side of the well cover in the well way, and has a gyroscope for detecting the manhole cover attitude, judging A vibration sensor and a signal transmitting module for the vibration amplitude of the well cover, and a position detection module, are fixed in the well, have a trigger device for detecting the matching degree of the well cover and the well, and are matched with the signal transmitting module The signal receiving module; the position detection module also has a communication module for communicating with external equipment. Its disadvantages are twofold: 1. The gyroscope and vibration sensor are expensive and require harsh environmental conditions, so they cannot be used in municipal road wells. and telecom well

2. The electronic device in the well is connected to the well cover by wire. Obviously, if the well cover is opened or personnel go down to the well for maintenance, it is very easy to break the connection between the internal and external devices, resulting in the paralysis of the system.

There are two disadvantages: 1. The hole in the manhole cover is used to open the manhole cover and carry out the passage of ventilation inside and outside the well.

Reusing the hole for other purposes not only destroys its normal function, but also easily destroys the smart chip inside the hole when opening the well cover with a crowbar, and breaks the connection between the inside and outside of the well, resulting in paralysis of the system

2. The information pickup distance of the current high-level non-contact reader (also known as electronic tag device) is less than 4m, so it is difficult to meet the requirements of the Internet of Things

[0009] 2. The more troublesome problem is the structure, installation and all-weather use of the antenna of the transmission system: the miniature antenna required to be placed under the metal manhole cover, even if it is buried by ice and snow, is still covered by water, and strong mechanical vibration and Under impact, the effective impedance of the antenna cannot change greatly

[0012] If the antenna is placed in the manhole cover or the metal manhole cover is directly used as an antenna, can it resist the mechanical vibration and impact of the vehicle for a long time? What if there is water on the road or the metal manhole cover is submerged by water? What about being covered in snow in winter? This is the biggest technical bottleneck of the all-weather smart manhole cover sensor and its management and control system based on the Internet of Things, and it is also the most difficult technical shortcoming of the smart manhole cover and its information transmission system that can work around the clock based on the Internet of Things

[0013] 3. It is difficult for the mains power to supply the electronic equipment in the well under the road, especially in the old urban area. Ordinary chemical power supply is not suitable for underground work in the dark, humid, mechanical vibration and strong impact in the wide temperature range.

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