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Multi-sensor low power consumption vehicle detection system and method based on adaptive environment

A multi-sensor and vehicle detection technology, applied in the traffic control system of road vehicles, traffic control systems, instruments, etc., to achieve the effect of small size, fast laying, and strong robustness

Active Publication Date: 2017-06-20
NANJING UNIV OF SCI & TECH
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Problems solved by technology

[0006] The purpose of the present invention is to provide a vehicle detection system and method based on self-adaptive environment multi-sensor low power consumption, to solve the problems of existing roadside parking lot management and other problems

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  • Multi-sensor low power consumption vehicle detection system and method based on adaptive environment

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Embodiment Construction

[0028] combine Figure 1-Figure 4 , a multi-sensor low-power vehicle detection system based on an adaptive environment, including several parking space nodes, a convergence node and a data monitoring terminal;

[0029] The parking space node is installed below each parking space, and each parking space node includes the first single-chip microcomputer, the first wireless communication module, a geomagnetic sensor and a power supply, and the geomagnetic sensor is used to detect the size of the magnetic field of the parking space. Setting the threshold, waking up the first single-chip microcomputer in the dormant state, and sending the parking space number and the geomagnetic intensity value to the sink node through the first wireless communication module;

[0030] The convergence node includes a second single-chip microcomputer, a second wireless communication module, a GPRS communication module and a microwave radar detector 1;

[0031] During initialization, the second wirel...

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Abstract

The invention relates to a multi-sensor low power consumption vehicle detection system and method based on an adaptive environment. A parking space node is installed in each parking space, when a vehicle enters or leaves the parking space, the geomagnetic field size of the parking space is changed obviously, a parking space node in a dormant state is woken, a parking space number and a parking space state are sent to a sink node, the sink node receives related data and read a Received Signal Strength Indication (RSSI) value, at the same time a microwave radar detector on the sink node of the area is started, the parking space which is calibrated in advance subjected to distance measurement again, and the state of the parking space at that time is determined when the vehicle enters or leaves. When the parking space information can not be detected by the RSSI value due to external factors such as a parking lot parking space environment or weather, a geomagnetic sensor is started as an auxiliary detection mode, and the reliability and accuracy of the method are improved.

Description

technical field [0001] The invention relates to a parking space vehicle detection technology in a parking lot, in particular to a vehicle detection system and method based on self-adaptive environment multi-sensors and low power consumption. Background technique [0002] With the rapid development of the intelligent transportation industry and the actual needs, vehicle information collection has covered parking lots, streets and highways on a large scale. At present, the commonly used vehicle information collection methods in the world mainly include loop coil, video, ultrasonic and so on. [0003] The toroidal coil has high precision and simple structure, but it cannot be widely used due to the need to dig roads for installation and maintenance. Its main working principle is designed according to the principle of electromagnetic field coupling. When a current of a certain frequency passes through the toroidal coil, when a ferromagnetic vehicle passes the toroidal coil, an ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/14
CPCG08G1/147
Inventor 吴键李雄雄周建荣魏健何旭峰崔兴梅
Owner NANJING UNIV OF SCI & TECH
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