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Fog detector

A technology of detectors and detection instruments, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve problems such as traffic congestion of actual capacity of highway facilities, increase of travel time and travel delays, blockage of regional road network operations, etc., and achieve continuous monitoring Dust concentration, ensuring high reliability, and convenient statistics and analysis

Inactive Publication Date: 2014-09-03
TIANJIN SAINUODA INTELLIGENT TECH
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AI Technical Summary

Problems solved by technology

The reduction of vehicle speed also brings about the increase of travel time and travel delay, which will directly affect the traffic capacity of the road
Especially in road sections with large traffic flow, the decline in the actual traffic capacity of road facilities may lead to serious traffic congestion, and this kind of congestion in some areas with developed road networks and high traffic intensity will cause the operation of regional road networks. blockage, even paralysis

Method used

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Embodiment Construction

[0038] Such as figure 1 The fog detector shown is a detection instrument with 51 microprocessors as the core, 51 microprocessors are respectively connected to EEPRM memory, RAM memory, interface circuit, wireless communication interface, input signal sampling filter processor; input signal sampling filter The processor is connected to the light / temperature / humidity sensor.

[0039] The interface circuit is connected to the fog indicator light and the RS485 interface, and the wireless communication interface is connected to the communication antenna.

[0040] The specific circuit is: see figure 2 , 3 、 4.

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Abstract

The invention discloses a fog detector. A 51 microprocessor is used as a core detection instrument, and is connected with an EEPROM (electrically erasable programmable read-only memory), an RAM (random access memory), an interface circuit, a wireless communication interface and an input signal sampling and filtering processor respectively, wherein the input signal sampling and filtering processor is connected with a light / temperature / humidity sensor; the interface circuit is connected with a foggy day indicator lamp and an RS485 interface; the wireless communication interface is connected with a communication antenna. According to the fog detector, accurate meterological conditions of fog and haze of a specific place can be accurately detected and reported, so that the correct traffic guidance and vehicle guidance and dredging of the traffic guidance department are ensured, and traffic congestion and traffic accidents are avoided.

Description

technical field [0001] The invention belongs to the field of meteorological monitoring intelligent transportation, in particular to a fog detector. Background technique [0002] The most significant impact of heavy fog on traffic is the reduction of vehicle speed. The reduction of vehicle speed also brings about the increase of travel time and travel delay, which will directly affect the traffic capacity of the road. Especially in road sections with large traffic flow, the decline in the actual traffic capacity of road facilities may lead to serious traffic congestion, and this kind of congestion in some areas with developed road networks and high traffic intensity will cause the operation of regional road networks. blockage, or even paralysis. According to relevant statistics from the Ministry of Transport, about one-fourth to one-third of the road blockage incidents reported locally in my country every year are caused by foggy weather. [0003] At present, my country's ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06G01N15/00
Inventor 刘春义
Owner TIANJIN SAINUODA INTELLIGENT TECH