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A parking space detection method and system based on joint data judgment

A detection method and combined data technology, which is applied to the traffic control system of road vehicles, traffic control system, and directions indicating various open spaces in the parking lot, can solve problems such as inapplicability, inaccurate test results, and high power consumption

Active Publication Date: 2020-09-04
微传智能科技(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing parking space detection methods are as follows: geomagnetic induction coil, which is the most widely used parking space detection technology at present. Large, not easy to install and maintain; video parking space detection, multi-parking space detection method, but the detection results are easily affected by light, weather and other reasons, resulting in inaccurate test results; ultrasonic parking space detection can reliably detect parking space information, but it is greatly affected by the environment , and the power consumption is high, it is not suitable for places without municipal grid power supply

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  • A parking space detection method and system based on joint data judgment
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  • A parking space detection method and system based on joint data judgment

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Embodiment 1

[0099] see Figure 7 , the present invention discloses a parking space detection method combined with data judgment, the parking space detection method comprising:

[0100] [Step S1] The magnetic sensor obtains the environmental magnetic field data when there is no external interference;

[0101] The earth's magnetic field is stable. In the absence of external interference, the magnetic sensor measures the value of the ambient magnetic field distributed on the parking space, which is denoted as M 0 ;

[0102] [Step S2] Obtain the data sensed by the ultrasonic sensor and the magnetic sensor at set intervals, and use this to determine the corresponding status of each parking space; please refer to image 3 , image 3 The detection ranges of the magnetic sensor and the ultrasonic sensor in this embodiment are disclosed.

[0103] (1) If the change process of the information sensed by the magnetic sensor and the ultrasonic sensor is as follows within the set time, it is judged ...

Embodiment 2

[0175] It is an effective detection method to use a magnetic sensor to detect whether there is a vehicle in the parking space. When the vehicle is parked in the parking space, it will cause magnetic field disturbance. Through the change of the magnetic field, it can be judged whether there is a vehicle in the parking space. However, due to the complexity of the models on the market, different models have different magnetic field influence values. Vehicles with strong magnetism will not only affect the magnetic field of the current parking space, but also bring a lot of disturbance to the adjacent parking spaces. The parking space brings interference in judgment, such as figure 1 , figure 2 shown.

[0176] In order to accurately judge the parking situation of the parking space and eliminate the interference of adjacent parking spaces, the present invention designs a multi-sensor joint judgment method, including magnetic sensors and microwave sensors. Combining the attribute ...

Embodiment 3

[0205] This embodiment discloses a parking space detection method combined with data judgment, the detection method comprising:

[0206] Step S1, the magnetic sensor acquires the ambient magnetic field value when there is no magnetic field interference;

[0207] Step S2, acquiring the data sensed by the magnetic sensor and the second sensor every set time interval, and judging the corresponding state of each parking space;

[0208] (1) If the change process of the information sensed by the magnetic sensor and the second sensor is as follows within the set time, it is judged that the vehicle has entered the parking space:

[0209] The magnetic sensor first senses the magnetic field disturbance, and at this time the second sensor cannot detect the interference information of the object; then within the set time interval, the magnetic sensor detects the interference data of the object, and the second sensor detects the interference information of the object; then Within the set ...

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Abstract

The invention discloses a parking space detection method and system for joint data judgment. The detection system comprises a magnetic sensor, a second sensor and a state judgment module; the state judgment module is connected with the magnetic sensor and the second sensor separately; the magnetic sensor is used for sensing ambient magnetic field data which is initially free of external magnetic field interference, and when the system enters the detection state, the peripheral magnetic field data is sensed at a preset time interval; the second sensor is used for sensing whether interference exists in the detection range of the second sensor or not; the state judgment module is used for receiving data sensed by the magnetic sensor and the second sensor and judging states corresponding to parking spaces. According to the parking space detection method and system for joint data judgment, the magnetic sensor and the second sensor cooperate with each other for work, the power consumption ofequipment can be reduced, and the working time of the equipment under unit electric quantity is prolonged. In addition, the influence of the adjacent parking spaces on the current parking space can be eliminated, and the equipment detection accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of parking space state detection, and relates to a parking space detection method, in particular to a parking space detection method combined with data judgment; meanwhile, the invention also relates to a parking space detection system combined with data judgment. Background technique [0002] With the acceleration of my country's urbanization process, the number of vehicles continues to increase, and the problems of difficult parking and random parking are common. When the number of vehicles is not equal to the capacity of the parking lot, it is particularly important to detect parking space information in real time and realize intelligent management of the parking lot. . [0003] The existing parking space detection methods are as follows: geomagnetic induction coil, which is the most widely used parking space detection technology at present. Large, not easy to install and maintain; video parking space det...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/14
CPCG08G1/146
Inventor 胡广辉盛杲万虹
Owner 微传智能科技(常州)有限公司