Highway fog automatic alarm device

Abstract

The invention relates to an alarm device, in particular to a highway fog automatic alarm device comprising a rod frame, a transmitter of counter photoelectric switches, a receiver of counter photoelectric switches, a single-chip microcomputer, an alarm, and a solar cell and characterized in that the solar cell is disposed on the top of the rod frame; the alarm formed by a yellow flashing light anda display screen is disposed under the solar cell; the yellow flashing light is controlled by the receiver of the counter photoelectric switches; the single-chip microcomputer controls the display screen; the transmitter of the counter photoelectric switches is installed on a position at 2-3 meters of the rod frame and transmits an optical signal to the receiver of another highway fog automatic alarm device on the upstream of the highway; the receiver of the counter photoelectric switches is installed on a position at 2-3 meters of the rod frame and faces the downstream of the highway to receive the optical signal emitted by the transmitter on another highway fog automatic alarm device at the downstream of the highway; the receiver is also connected with the single-chip microcomputer; andthe single-chip microcomputer is also connected with a highway monitoring network.

Description

technical field [0001] The invention relates to an alarm, in particular to an automatic alarm for expressway fog. Background technique [0002] Fog is the number one killer on the expressway, which can easily lead to rear-end collisions of vehicles. In order to cope with the cloudy fog, the real-time monitoring and early warning system for highway cloudy fog with the publication number CN101694748A sends the visibility information to the road display screen and the driver's mobile phone with a radio module. The driver cannot get the visibility information near the front in time, so the vehicle will still break into the fog at high speed, which will easily lead to accidents. Public number CN103413442A expressway fog early warning system and early warning method based on line-of-sight distance detection is to set up fog detection devices on both sides of the expressway, that is, to set corresponding laser emitting modules on both sides of the expressway And the laser receivi...

AI Technical Summary

Problems solved by technology

In order to cope with the cloudy fog, the real-time monitoring and early warning system for highway cloudy fog with the publication number CN101694748A sends the visibility information to the road display screen and the driver's mobile phone with a radio module. The driver cannot get the visibility information near the front in time, so the vehicle will still break into the fog at high speed, which will easily lead to accidents

Public number CN103413442A expressway fog early warning system and early warning method based on line-of-sight distance detection is to set up fog detection devices on both sides of the expressway, that is, to set corresponding laser emitting modules on both sides of the expressway And the laser receiving module, because the device is installed in the horizontal direction of the highway, and the height of the vehicles driving on the highway is 4-5 meters, so the laser transmitting module and receiving module are installed above 5 meters on the road surface Because the advection type fog is sometimes below 5 meters from the ground, the detection module cannot detect the advection type fog within 5 meters from the ground, so the system and method are easy to leak when detecting the fog And inaccurate, it is still impossible to automatically, accurately and timely forecast group fog warning information to drivers upstream of the expressway in advance

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