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Vehicle detection device and method based on dual-mode non-contact induction

A non-contact, vehicle detection technology, which is applied in road vehicle traffic control systems, instruments, traffic control systems, etc., can solve problems such as high cost, inability to meet urban road parking management, and low detection success rate of parking space detectors

Pending Publication Date: 2019-04-26
ABACUS INFO SHENZHEN
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the existing solutions have different problems (such as the low detection success rate of the parking space detector and the high cost), which cannot meet the needs of urban road parking management.

Method used

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  • Vehicle detection device and method based on dual-mode non-contact induction
  • Vehicle detection device and method based on dual-mode non-contact induction
  • Vehicle detection device and method based on dual-mode non-contact induction

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Experimental program
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Effect test

Embodiment approach

[0034] As an implementation, the step 3 includes:

[0035] Calculation and judgment sub-step: given the geomagnetic change detection period as T, the threshold TH corresponding to the three coordinate axes of the space i , i=x, y, z; In the Nth sampling period, the geomagnetic values ​​of the three coordinate axes in space are measured by the geomagnetic sensor for Count the series separately The first derivative of [Φ' i1 ,Φ' i2 ] and the second derivative Φ" i ; for ([Φ' i1 ,Φ' i2 ],Φ" i ), i=x, y, z, if [Φ' i1 ,Φ' i2 ] is greater than the threshold TH i , and Φ" i >0, it means that the vehicle is detected on the i axis and enters the steady state information; if the vehicle is detected on any two axes of the x, y, and z axes and enters the steady state information, it is determined that there is a vehicle entering or exiting the parking space and enter a steady state.

[0036] As an implementation manner, the step 4 includes:

[0037] Sub-step 1: given microw...

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Abstract

The embodiment of the invention discloses a vehicle detection device and method based on dual-mode non-contact induction. The device includes a geomagnetic sensor for detecting whether a vehicle enters or exits from parking space, a microwave sensor for detecting whether the vehicle exists above the detection device, a Hall sensor for waking up the detection device by a user through a strong magnet, a NB-IoT module in communication connection with an operator platform, a power supply module for supplying power for the detection device and a MCU which is electrically connected with the geomagnetic sensor, the microwave sensor, the Hall sensor, the NB-IoT module and the power supply module. The device has the advantages of high reliability, long service life, easy installation and deployment, no need of manual maintenance and adaptability to various application scenarios by adopting a dual detection mode of the geomagnetic sensor and the microwave sensor and waking up the device it selfthrough the Hall sensor, thereby meeting the needs of urban road parking management.

Description

technical field [0001] The invention relates to the technical field of urban road parking management, in particular to a vehicle detection device and method based on dual-mode non-contact induction. Background technique [0002] The early urban road parking management was mainly based on the swiping card system, which represented a system built around meters. A typical operation process is: when the vehicle enters the parking space, the owner gets off the vehicle, uses the financial card to swipe the card on the meter to register the payment, and the roadside control unit authenticates the identity with the financial authentication security module and the financial card according to the command. After the verification is passed, read the information of the electronic wallet in the financial card; before the car owner leaves the parking space, use the financial card to swipe the card on the meter to pay again, and the roadside control unit obtains the remaining amount in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/042
CPCG08G1/042
Inventor 李宇钟建华李凯龙
Owner ABACUS INFO SHENZHEN
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