Automobile overspeed alarm system based on visibility meter

A technology of visibility meter and alarm system, which is applied in speed/acceleration/shock measurement, speed/acceleration/electric shock meter detailed information, instruments, etc. It can solve the problems of affecting the driver's line of sight and reducing visibility, so as to reduce the probability of traffic accidents , the effect of preventing traffic accidents

Inactive Publication Date: 2013-08-21
ANHUI UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

Dense fog and rain and snow weather reduce the visibility on the expressway, affect the driver's sight, make the driver unable to grasp the real-time situation of the traffic, and are prone to traffic accidents caused by speeding, and because the speed of the expressway is too fast, Traffic accidents are often a series of rear-end collisions by several or even dozens of vehicles, resulting in very serious consequences

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  • Automobile overspeed alarm system based on visibility meter
  • Automobile overspeed alarm system based on visibility meter

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Embodiment Construction

[0010] A model is installed on the roof of the car as the visibility meter 1 of NJD-1. First open and press the reset switch 7, then turn on the power switch 9, and the power supply is supplied by the vehicle power supply 8. If the power supply is successful, the power supply working indicator light 3 will be lighted. The real-time visibility measured by the visibility meter is transmitted to the single-chip microcomputer chip of the alarm system through the R232 port 5 of the visibility meter. According to Article 81 of the Traffic Safety Law, when the visibility is less than 200 meters, the speed of the vehicle must not exceed 60 kilometers per hour; when the visibility is less than 100 meters, the speed of the vehicle must not exceed 40 kilometers per hour; more than 20 km / h. Realize the conversion between visibility and maximum driving speed in the single-chip microcomputer, and at the same time, transmit the measured real-time vehicle speed 6 to the single-chip computer ...

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Abstract

Provided is an automobile overspeed alarm system based on a visibility meter. Current visibility is measured through the vehicle-mounted visibility meter, then collected data are transmitted to a single chip microcomputer, received speed information is fed back to an audible and visual alarm and a display screen through the single chip microcomputer, the visibility and a corresponding maximum running speed formulated by vehicular traffic laws are switched, and an actual speed and the maximum running speed are compared and respectively displayed to a driver. The automobile overspeed alarm system based on the visibility meter is mainly used in the situations of low-visibility weather such as rainy days, snowy days and greasy weather, and puts forward very high requirements for the automobile running speed. The automobile overspeed alarm system based on the visibility meter is applied so as to effectively remind the driver of paying attention to traffic safety and reduce probability of occurrence of traffic accidents, and has greater practical significance on daily transportation.

Description

1. Technical field [0001] The invention relates to a vehicle speeding alarm system based on a visibility meter, which mainly measures the current visibility based on a vehicle volume visibility meter, and then transmits the collected data to a single-chip microcomputer, and realizes the correspondence between the visibility and the maximum driving speed specified by the traffic law through the single-chip microcomputer. If the actual speed is greater than the maximum speed limited by the current visibility, the system will send out an alarm signal and remind the driver to slow down to prevent traffic accidents. 2. Background technology [0002] The rapid increase in traffic volume and the increase in vehicle speed have put forward higher requirements for the safety and security of transportation. However, in addition to factors that violate traffic rules such as speeding and alcoholism, the impact of various natural disasters on traffic safety has been paid more and more att...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P1/10G01P1/07B60Q5/00
Inventor 李东辰陆德琳许威郑建兰
Owner ANHUI UNIV OF SCI & TECH
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