Vehicle detecting apparatus

Abstract

The vehicle detecting device consists of detecting unit, signal processing / transmitting unit and power supply. The detecting unit consists of geomagnetic imaging detector and sound, vibration, pressure, ultrasonic, temperature or microwave detector; the signal processing / transmitting unit includes at least amplifier and may have microprocessor, I / O interface, radio signal or fiber signal transmitter as well as sub-detecting unit. The present invention can be used to obtain traffic flow, road occupying rate, vehicle rate, parking time, and other information and may be used widely in traffic and park monitoring, management and command. The present invention has the advantages of low cost, small size, modulization, high reliability, etc.

Description

technical field [0001] The invention relates to a detection device, in particular to a vehicle detection device, which can be used in urban highway traffic command, vehicle and traffic flow detection, vehicle access control, parking lot management and other occasions. Background technique [0002] With the development of the economy and the improvement of people's living standards, cars are getting closer and closer to people's lives, urban traffic and highway traffic congestion occur from time to time, especially the traffic conditions in large and medium-sized cities have become the focus of the government and the public One of the focal issues is that a lot of manpower, material resources, and funds are invested in road reconstruction and road construction. Even so, they cannot keep up with the rapid growth of traffic pressure. This situation is very common, especially in areas with more developed economies. The more serious the congestion phenomenon is; in some areas, du...

AI Technical Summary

Problems solved by technology

[0003] At present, the detectors of relevant vehicles mostly use passive infrared rays to detect vehicle signals and transmit them to the traffic command department after amplifying them, such as the "vehicle detection device" with the application number 98802297.4 of the patent Siemens Corporation; The coil is a detection device. When a vehicle passes through a large induction coil, the vehicle becomes the magnetic core of the large induction coil, causing the inductance of the coil to change. The coil and other circuits form a vehicle detection signal, usually a frequency signal, which is sent to the processor for processing. , to obtain traffic information such as traffic flow, such as the non-machine vehicle induction coil used in the intelligent traffic flow detector disclosed in the Chinese invention patent No. ZL93212566.2; these detection devices have a single detection method for vehicles, and the detection information is not comprehensive. The shortcomings of poor timeliness, or large volume and inconvenient installation

In addition, the Nu-metrics company of the United States produces a permanent wireless vehicle recorder that uses vehicle magnetic imaging (VMI) technology to measure traffic flow. Vehicles parked at or near its installation location have limitations and deficiencies in function or performance when detecting vehicles parked at or near its installation location, and cannot fully meet the monitoring, management, and monitoring requirements of urban traffic intersections, parking lots and road network traffic Command system requirements for vehicle detection devices

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