How to set the driving record of automobile USB intelligent camera module


A. 3.2 set vehicle information (82H)


The format of command frame data block is the same as that of acquisition vehicle information response frame data block, as shown in table a.11. Reply frame data block data is empty.


A. 3. 3 set the initial installation date (83h)


The format of command frame data block is the same as that of real-time time response frame data block of acquisition recorder, as shown in table A.8. Reply frame data block data is empty.


A. 3.4 setting state quantity configuration information (84h)


The format of command frame data block is the same as that of acquisition recorder state quantity configuration information response frame data block, as shown in table a.13. Reply frame data block data is empty.


A. 3.5 set the recorder time (C2H)


The format of command frame data block is the same as that of real-time time response frame data block of acquisition recorder, as shown in table A.8. Reply frame data block data is empty.


A. 3.6 set the pulse coefficient of recorder (C3H)


The format of command frame data block is the same as that of response frame data block of acquisition pulse coefficient, as shown in table a.10. Reply frame data block data is empty.


A. 3.7 set starting mileage (C4H)


For the format of command frame data block, see table A.9 for the starting mileage in the data block format of the response frame for collecting accumulated mileage. Reply frame data block data is empty.


A. 4 format of verification command word and data block


A. 4.2 enter or maintain verification status (e0h)


Command frame data block data is empty, and response frame data block data is empty.


In the verification state, the verification device sends the command frame containing this command word at a time interval of no more than 2 seconds. If the recorder does not receive the command frame within 6 seconds, it will automatically return to the normal working state.


A. 4.3 mileage error measurement (e1H)


Command frame data block data is empty, and the format of response frame data block is shown in table a.35.


In this state, the recorder receives the standard speed pulse measurement signal input by the seven pins of DB9, and sends the response frame continuously at one second interval until receiving the next verification command.


A. 4. 4 pulse coefficient error measurement (E2H)


Command frame data block data is empty, and response frame data block data is empty.


In this state, the recorder outputs the speed sensor signal through the 7-pin of DB9 until receiving the next verification command.


A. 4.5 real time time error measurement (e3h)


Command frame data block data is empty, and response frame data block data is empty.


In this state, the recorder outputs the second pulse signal of real-time clock through the seven pins of DB9 until receiving the next verification command.


A. 4.6 return to normal working state (e4h)


Command frame data block data is empty, and response frame data block data is empty.