Method for automatically identifying the installation direction of obd equipment in vehicles based on genetic algorithm
A genetic algorithm and automatic identification technology, applied in the direction of measuring devices, instruments, surveying and navigation, etc., can solve the problem of different installation directions of OBD equipment
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[0049] The following are examples, and the specific embodiments of the present invention are described in further detail. The following examples are used to illustrate the present invention, but are not used to limit the protection scope of the present invention.
[0050] The method for automatically identifying the installation direction of an OBD device in a vehicle based on a genetic algorithm comprises the following steps:
[0051] A. Install the OBD device on the vehicle. Due to the influence of various factors, the coordinate system of the OBD device is a non-horizontal coordinate system at this time. Use the ax, ay and az output by the accelerometer to calculate the non-levelness of the OBD device theta and gamma;
[0052] θ = sin - 1 - ax ax 2 + ...
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