System employing street lamp radio frequency technology for driving speed prompting and monitoring

Abstract

The invention relates to a system employing the street lamp radio frequency technology for driving speed prompting and monitoring. According to the system, multiple street lamps (2) are arranged at road (1) sides, each street lamp (2) is provided with a control unit, each control unit receives instructions sent by a computer control terminal to control opening and closing of each street lamp, required time of a motor vehicle for passing through two adjacent radio frequency card readers can be acquired by the computer control terminal according to different time points of the two adjacent radio frequency card readers for acquiring one same motor vehicle signal, in combination with the fixed distance of the two adjacent radio frequency card readers, the average speed of the motor vehicle passing through the fixed distance can be figured out, if the average speed is greater than the largest speed set by the road management department, the motor vehicle overspeeds.

Description

technical field [0001] The invention relates to a street lamp control system, in particular to a system for prompting and monitoring driving speed through street lamp radio frequency technology. Background technique [0002] Most cities in my country, especially small and medium-sized cities, use clock control, light control or simpler automatic control systems for street lamp management systems. In this extensive management method, especially in large parking lots or inaccessible roads in forested and pastoral areas, There is a problem that there are no cars or people passing by for a long time and the street lights are still turned on. This not only causes a large energy consumption burden for road lighting, but also violates the current concept of energy conservation and environmental protection. [0003] A lighting control system using radio frequency identification technology (application number 201320540843.1) disclosed in a Chinese patent discloses that street lights ...

AI Technical Summary

Problems solved by technology

[0004] (1) In the prior art, there are no specific conditions for controlling the turning on of street lights through radio frequency technology. If the use time of radio frequency technology is only set according to the night time, some extreme weather will be missed, such as sandstorm weather and foggy weather. So that the RF control cannot adapt to the environment in time

[0005] (2) In the prior art, the street lights in a certain area are controlled by radio frequency technology to turn on or off, so that if the area is set too large, it will still cause a waste of electric energy; if the area is set too small (such as All street lamps are equipped with radio frequency card readers), which will make the construction cost too high and not suitable for promotion

[0006] (3) The existing technology uses radio frequency technology to only control the full brightness of street lights in a certain area, but does not control the time when the street lights in this area are extinguished. If the vehicle breaks down in this area, the street lights will still be automatically turned off after N minutes, which will be extremely unfavorable for drivers to maintain and call for help at night.

Glass also reflects radar waves, so when radar is transmitted through patrol car glass, the measurement distance is reduced

[0009] 2. Rain; rain can absorb and disperse radar signals, which will shorten the measurement distance, and at the same time, it is possible to obtain the speed reading as the speed of raindrops

[0011] 4. Car ignition noise; the electronic system of a very noisy car will cause the operation of the radar to be unstable

[0012] 5. Fan noise; fan noise is the most common problem encountered with Doppler radars when the radar is transmitting from inside a patrol car

A small portion of the radar waves are reflected through the glass into the car, and they will pick up the noise of the fan, causing errors in the radar measurements

[0013] 6. Angle error; Doppler radar can only measure accurately when it is in line with the direction of the target vehicle

[0014] 7. Interference from radio transmitting equipment; nearby strong radio transmitters may also have an impact on radar measurements

[0015] It can be seen that there are errors in the use of speed measuring radar on the existing roads, which cannot truly reflect the speed of the vehicle, and the existing speed measuring method cannot actively remind the driver to maintain the specified speed when the vehicle is overspeed, so as to avoid the occurrence of overspeed situations

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