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Light-weight holographic road traffic state visual inspection device

A visual detection device, a technology for road traffic, applied in the direction of traffic flow detection, etc., can solve the problems of weak data spanning in time and space, poor diversity of data collection objects, and large limitations.

Active Publication Date: 2014-08-13
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In order to overcome the limitations of the existing road traffic state detection devices, the diversity of data collection objects is poor, the data is weak in time and space, the implementation of investment and maintenance costs is high, and the contact detection means are not friendly to roads and vehicles, it is difficult to From the perspectives of macroscopic, mesoscopic and microscopic, and real-time evaluation of road traffic service level status from people's subjective feelings, the present invention provides a system with wide detection range, high detection accuracy, good real-time detection, convenient implementation, and high detection results. Intuitive and clear, there are both subjective and objective evaluation index data, and it is convenient for urban road networks at all levels to comprehensively evaluate the road traffic state in time and space. Lightweight holographic road traffic state visual detection device

Method used

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  • Light-weight holographic road traffic state visual inspection device

Examples

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Embodiment 1

[0150] refer to Figure 1 to Figure 8 , Figure 13 , a light-weight holographic road traffic state visual detection device, including visual sensors installed at each measurement point on each road on the road network, the visual sensor is arranged about 10 meters above the lane, parallel to the direction of the lane, towards Align downwards to the lane, while the horizontal axis of the imaging plane of the vision sensor is parallel to the ground plane, as shown in the attached figure 1 shown. The microprocessor that is used for evaluating road traffic state according to the video data of visual sensor, described microprocessor comprises microprocessor system hardware and microprocessor software, it is characterized in that: described microprocessor hardware is composed of CPU, Image memory, input unit, display unit, storage unit, transmission unit, communication unit, video interface, RAM (Random Access Memory) and ROM (Read-only Memory), as attached Figure 5 As shown; th...

Embodiment 2

[0267] Refer to attached Figures 9 to 12 , and the rest are the same as Implementation 1, the difference is that the lane customization, automatic generation of sampling points and road congestion analysis, processing and detection are completed on two different devices; among them, the customization of lanes and automatic generation of sampling points are performed on a PC Completed, the road congestion analysis, processing and detection is completed on the embedded device; the SOCKET communication method is used between the customized PC and the embedded device for analysis, processing and detection, as shown in the attached Figure 10 Shown; The specific implementation method is: at first in the lane information that the PC machine has customized and the sampling point information on the lane, the processing flow of lane customization and generation sampling point is as attached Figure 12 shown; then, through SOCKET communication to the embedded device, as attached Figu...

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Abstract

The invention discloses a light-weight holographic road traffic state visual inspection device comprising visual sensors installed at measuring points in each road on a road network, and a microprocessor for analyzing and evaluating the road traffic state according to video image data of the visual sensors. According to the invention, a point replacing surface type video image detection method is adopted to reduce spatial redundancy; an accurate background update strategy based on sampling points is adopted to realize a light-weight, accurate and efficient background update method; and at the same time, the detection of road traffic jam and the detection of various of traffic basic parameters can be completed.

Description

technical field [0001] The invention belongs to the application of digital image processing technology, embedded system and pattern recognition technology in the field of intelligent transportation, in particular to a lightweight holographic road traffic state visual detection device. Background technique [0002] Today's traffic problems have become a global "urban problem", and traffic congestion is the main manifestation of the city's "traffic disease". The "cause" of urban traffic congestion stems from a variety of factors, and traffic congestion directly affects the quality of people's travel, especially those who use vehicles for transportation. Congested road vehicles, frequent traffic accidents, deteriorating traffic environment, energy shortage, and increasing environmental pollution. These increasingly serious traffic problems are related to the basic concepts of modern traffic, namely accessibility, order, safety, comfort, low energy consumption, and low pollution...

Claims

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Application Information

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IPC IPC(8): G08G1/01
Inventor 汤一平朱威黄磊磊郑雅羽俞立
Owner ZHEJIANG UNIV OF TECH
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