Multi-mode combined vehicle detection apparatus

Abstract

The invention relates to a vehicle state and information identification extracting apparatus. The apparatus detects the parking state of vehicles in a detected area and displays the parking state through an indicating lamp, image information is sent to an access bus according to an instruction of a host computer, and a control instruction of the host computer can be received to enable state information to be displayed. The apparatus comprises an MCU, an image sensing assembly, an ultrasonic detection assembly, a logic control module, a communication assembly, an indicating lamp assembly, a power supply module, etc. Ultrasonic reflection is adopted to detect whether vehicles exit in the detected area, a result is displayed by the indicating lamp and also sent as feedback to the host computer through a communication port, and when the host computer orders the apparatus to send image signals to a bus on the basis of task scheduling situations, the MCU enables signals of the image sensing assembly to be accessed to the bus through the logic control module, and the bus is released if a command of the host computer is cancelled. In this way, a parking lot guiding and vehicle tracking comprehensive system can be easily formed. The mode of the apparatus is formed by an ultrasonic mode and an image mode both of which are effective simultaneously, and the bus control is employed, so the comprehensive cost and the reliability are both guaranteed.

Description

technical field [0001] The invention relates to a parking space detector and an image information source of a license plate recognition device, in particular to a device for quickly determining the parking state of a vehicle through ultrasonic detection and outputting image information using a bus mode. Background technique [0002] At present, there are many devices on the market that can independently detect the status of parking spaces in parking lots. Although it can detect the status of parking spaces, it is difficult to quickly and accurately obtain vehicle parking status and obtain characteristic information such as license plates due to the limitations of cost and technical means. , or the single cost is too high or the wiring of the application solution is complicated. [0003] Similar products based on full image recognition technology have complicated integrated wiring, and the recognition speed has certain requirements on the lighting and background of the vehicl...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many devices on the market that can independently detect the status of parking spaces in parking lots. Although it can detect the status of parking spaces, it is difficult to quickly and accurately obtain vehicle parking status and obtain characteristic information such as license plates due to the limitations of cost and technical means. , or the single cost is too high or the wiring of the application solution is complicated

[0003] Similar products based on full image recognition technology have complicated integrated wiring, and the recognition speed has certain requirements on the lighting and background of the vehicle. When the light is dark or too strong, the recognition efficiency will drop. Although there are technical methods to correct and compensate, the actual application effect Still have certain requirements for light

Products based entirely on ultrasonic detection can quickly and accurately detect vehicle status, but cannot achieve image acquisition and recognition of simple wiring conditions

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