Reverse detection for Vehicle Video-Recorder

[Gideon]

Hello,

I am searching for a solution for detecting "Reverse" for vehicle video-recorder(black box).

Could you let me know which is the best part of it?

Best Regards,

[Vincent]

I'm not able to get your point here.

Can you give me more detail what you are looking for? 

Do you want to find a solution to decoding the black box for vehicle video recording box? 

Or you want to find a solution to detect the motion of the car then trigger vieo recording?

[Gideon]

Hi Vincent,

Sorry about that. 

I'm looking for a part to detect the reverse direction. For example, when I drive a car, I believe the accelerometer or gyro can detect the forward and reverse direction.

So I want to know which is the best solution between acc and gyro for detecting the direction?

 

 Best Regards,

[Vincent · Accepted solution]

OK,  now i understand.  you want to detect the deceleration of vehicles. 

I will say using IMU will be able to achieve this target. 

The linear acceleration sensor can be used for this purpose which is sensor fusion of accel and gyro data. 

[Gideon]

Thanks for your help.

Is there any way to get the fusion algorithm for that?

Best Regards,