Method and system for automatically recognizing positions of left wheel and right wheel
An automatic identification system and automatic identification technology, applied in tire measurement, vehicle parts, tire parts, etc., to increase hardware costs, reduce manual calibration costs, and improve installation efficiency.
Inactive Publication Date: 2014-09-24
ZONGMU TECH SHANGHAI CO LTD
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[0006] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method and system for automatically identifying the position of the left and right wheels, which is used to solve the problem that the prior art cannot effectively solve without increasing the hardware cost and the complexity of vehicle maintenance operations. Wheel position recognition problem
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[0035] The invention provides a method for automatic identification of left and right wheel positions, such as figure 1 As shown, the automatic identification method of the left and right wheel positions includes:
[0036]S11, install two three-axis acceleration sensors on the left wheel and the right wheel of the mobile device respectively, and the two three-axis acceleration sensors are mirror-image symmetrical, and are respectively called the left three-axis acceleration sensor and the right three-axis acceleration sensor. The first coordinate axis of the right three-axis acceleration sensor and the longitudinal axis of the body of the mobile device form an included angle of 45 degrees to 90 degrees, that is, the first coordinate axis of the right three-axis acceleration sensor may point forward to the mobile device The longitudinal body axis of the mobile device may also be directed oppositely to the longitudinal body axis of the mobile device. The second coordinate axis ...
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The invention provides a method and system for automatically recognizing the positions of a left wheel and a right wheel. The method comprises the steps that two three-axis acceleration sensors are installed on the left wheel and the right wheel of a mobile device respectively, are in mirror symmetry and include the left three-axis acceleration sensor and the right three-axis acceleration sensor; in the forwards-traveling process of the mobile device, when the output quantity of a third coordinate axis reaches to the maximum, the output quantity of a second coordinate axis of the right three-axis acceleration sensor is right in the zero crossing point from negative to positive, and the output quantity of a second coordinate axis of the left three-axis acceleration sensor is right in the zero crossing point from positive to negative; the left wheel and the right wheel are recognized according to the y-axis output characteristic difference of the left three-axis acceleration sensor and the right three-axis acceleration sensor when the output quantity of the third coordinate axis reaches to the maximum. According to the method and system, the additional hardware cost is not added, the labor calibration cost can be reduced, and the installing efficiency of a tire pressure monitoring sensor is improved.
Description
technical field [0001] The invention belongs to the technical field of electronic communication and relates to a vehicle safety monitoring system, in particular to a method and system for automatic identification of left and right wheel positions. Background technique [0002] In a system for monitoring tire pressure in a car, the tire is equipped with a pressure sensor that sends tire pressure measurements over a wireless link to a processing unit in the car. Such pressure information is processed by the processing unit for display or warning signals. When transmitting pressure measurement information, each sensor also needs to transmit a code or identifier enabling itself to be identified. In order for the system to work correctly, the processing unit must be able to determine which wheel the received pressure information corresponds to. [0003] In order to solve the above problems, some systems equip the receiver of the processing unit with four receiving antennas, the...
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IPC IPC(8): B60C23/04
Inventor 唐锐孙海鹏
Owner ZONGMU TECH SHANGHAI CO LTD