Parking space detection method, system thereof and parking space occupied probability calculation device

A detection method and technology for parking spaces, which are applied to measuring devices, radio wave measurement systems, and other directions indicating various open spaces in the parking lot, so as to reduce the probability of missed or false positives, improve the accuracy of detection, and avoid the difficulty of threshold setting.

Active Publication Date: 2012-10-10
WUXI INSTITUTION OF INTERNET OF THINGS +1
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Problems solved by technology

[0007] In view of this, the embodiment of the present application provides a parking space detection method, system and parking space occupation probability calculation device. Carry out calculations to obtain the probability of whether the parking space is occupied, so as to solve the problems existing in the existing detection methods using magnetic sensors

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  • Parking space detection method, system thereof and parking space occupied probability calculation device
  • Parking space detection method, system thereof and parking space occupied probability calculation device
  • Parking space detection method, system thereof and parking space occupied probability calculation device

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[0059] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described The embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work should fall within the protection scope of this application.

[0060] The existing parking space detection method usually uses sensors to detect the parking space, and compare the measured value with a preset threshold value, and then obtain whether the parking space is occupied or not. The preset threshold is related to the measurement accuracy. How to set it is usually difficult. In addition, the results obtained...

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Abstract

The invention discloses a parking space detection method, a system thereof and a parking space occupied probability calculation device. The method comprises steps of: collecting multiple axial magnetic field intensity of a detection point position in a parking space; comparing each of the multiple axial magnetic field intensity with a respective background magnetic field value respectively, and obtaining each axial magnetic field intensity variation; by using a membership function, establishing mapping relations between multiple axial magnetic field intensity variations and respective axial multiple fuzzy sets respectively; merging a fuzzy set corresponding to each axial magnetic field intensity variation into a combination, and carrying out table look-up according to the combination to obtain a probability of being occupied of the parking space. According to the method, fuzzy theory is used, setting a threshold in a calculation process is not needed, and a problem that measurement accuracy is influenced by a threshold set difficulty and an unreasonable threshold is avoided. In addition, according to the method, an occupied or unoccupied state of the parking space can be judged, a state of a vehicle in getting in and out can be judged, and the precision of detection is raised.

Description

Technical field [0001] This application relates to the technical field of parking space measurement, in particular to a parking space detection method and system, and a parking space occupancy probability calculation device. Background technique [0002] In order to improve the utilization rate of parking spaces in parking lots, it is necessary to use scientific and technological means to reliably detect whether the parking spaces are occupied, and then guide cars to park quickly and accurately. The use of magnetic sensors to detect parking spaces is an emerging method of parking space detection this year. Compared with traditional geomagnetic induction coils, ultrasonic parking space detectors and video parking space detectors, it has low cost, low construction intensity and high detection accuracy. , Strong reliability and other advantages, more and more welcomed by parking equipment suppliers and parking lot operators. [0003] At present, the existing parking space detection d...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/14G01V3/08
Inventor 朱健曹红兵邓遂赵显忠向文芳国薇于禾
Owner WUXI INSTITUTION OF INTERNET OF THINGS
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