Intelligent traffic light control system of passive millimeter waves based on traffic flow

A control system and millimeter wave technology, applied in the control of traffic signals and other directions, can solve the problems of low detection accuracy, poor detection performance, electromagnetic pollution, etc., and achieve the effects of strong detection performance, improved detection performance, and convenient installation.

Inactive Publication Date: 2014-03-26
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] The present invention aims to solve the problems of low detection accuracy caused by electromagnetic pollution, complicated installation and poor detection performance of the

Method used

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  • Intelligent traffic light control system of passive millimeter waves based on traffic flow
  • Intelligent traffic light control system of passive millimeter waves based on traffic flow
  • Intelligent traffic light control system of passive millimeter waves based on traffic flow

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specific Embodiment approach 1

[0038] Specific implementation mode one: see figure 1 Describe this embodiment mode, a kind of passive millimeter-wave intelligent traffic light control system based on traffic flow described in this embodiment mode, it comprises reflective surface communication antenna 1, millimeter-wave radiometer 2, single-chip microcomputer control system 3, nixie tube display module 4 , a traffic light display module 5 and a power supply module 6;

[0039] The millimeter-wave signal output end of the reflective surface communication antenna 1 is connected to the millimeter-wave signal input end of the millimeter-wave radiometer 2, the voltage signal output end of the millimeter-wave radiometer 2 is connected to the voltage signal input end of the single-chip microcomputer control system 3, and the power supply The module 6 is used to provide working power for the millimeter wave radiometer 2, the single-chip microcomputer control system 3, the nixie tube display module 4 and the traffic ...

specific Embodiment approach 2

[0042] Specific implementation mode two: see figure 2 Describe this embodiment. The difference between this embodiment and the traffic flow-based passive millimeter-wave intelligent traffic light control system described in the first embodiment is that the millimeter-wave radiometer 2 includes a No. 1 high-frequency amplifier 2- 1, No. 2 high-frequency amplifier 2-2, No. 3 high-frequency amplifier 2-3, square detector 2-4, filter 2-5, No. 1 low-frequency amplifier 2-6 and No. 2 low-frequency amplifier 2-7,

[0043] The millimeter-wave signal input end of the No. 1 high-frequency amplifier 2-1 is the millimeter-wave signal input end of the millimeter-wave radiometer 2, and the millimeter-wave signal output end of the No. 1 high-frequency amplifier 2-1 is connected to the No. 2 high-frequency amplifier. The millimeter-wave signal input terminal of No. 2-2 is connected, the millimeter-wave signal output terminal of No. 2 high-frequency amplifier 2-2 is connected with the millime...

specific Embodiment approach 3

[0046] Specific implementation mode three: see figure 1 with 2 This embodiment is described. The difference between this embodiment and the traffic flow-based passive millimeter-wave intelligent traffic light control system described in Embodiment 1 or Embodiment 2 is that the single-chip microcomputer control system 3 is realized by AT89C51.

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Abstract

The invention relates to an intelligent traffic light control system of passive millimeter waves based on traffic flow. The system belongs to the radiation detection field of passive millimeter waves and solves the problem that a vehicle detector in the existing traffic light control system has low detection accuracy caused by electromagnetic pollution, complex installation and poor detection performance. The millimeter-wave-signal output end of a reflector communication antenna is connected with the millimeter-wave-signal input end of a millimeter-wave radiometer. The voltage-signal output end of the millimeter-wave radiometer is connected with the voltage-signal output end of a single-chip control system. A power module is used for providing working power to the millimeter-wave radiometer, the single-chip control system, a digitron display module and a traffic light display module. The first control signal displaying output end of the single-chip control system is connected with the control signal displaying input end of the digitron display module. The second control signal displaying output end of the single-chip control system is connected with the control signal displaying input end of the traffic light display module. The intelligent traffic light control system is specifically applied in the traffic light control field.

Description

technical field [0001] The invention specifically relates to the field of passive millimeter wave radiation detection. Background technique [0002] With the continuous increase of urban motor vehicles, traffic overload has occurred in many large cities. Since the late 1980s, these cities have built urban expressways one after another, and they have also effectively improved the traffic conditions at the initial stage of completion of expressway construction. However, with the rapid growth of traffic volume and the lack of systematic research and control on expressways, expressways have not fully played their expected role. The structural characteristics of urban expressways also determine that the traffic conditions of urban expressways must be restricted by the traffic conditions at the joints between expressways and ordinary roads. Therefore, how to adopt appropriate control methods to maximize the use of urban expressways that cost a lot of money to alleviate the traff...

Claims

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Application Information

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IPC IPC(8): G08G1/08
Inventor 付彦志王楠楠邱景辉亚历山大·杰尼索夫刘浩褚红军董佳鑫特尼格尔张鹏宇
Owner HARBIN INST OF TECH
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