What is a DAT device? What are the functions of the DAT device in Vietnam? - Tri Dung (Long An, Vietnam)
What is a DAT device? Functions of the DAT device in Vietnam (Internet image)
Regarding this issue, LawNet responded as follows:
According to QCVN 105:2020/BGTVT issued together with Circular 37/2020/TT-BGTVT, DAT device is an electronic device installed on a car to record, store, authenticate and transmit relevant mandatory information in the process of teaching and practicing driving.
Functions of the DAT device in Vietnam according to QCVN 105:2020/BGTVT promulgated together with Circular 37/2020/TT-BGTVT include the following minimum functions:
* Function to display information and notify operation status:
The DAT equipment shall have a self-test function at initial start-up and during operation and shall provide signals, by means of lights, sound, or display, to indicate the operating status, including:
- Status of mobile telecommunications signal;
- Status of connection, loss of connection to the server;
- Status of the signal, loss of GNSS signal;
- Operation status of data storage memory;
- Operation status of the camera;
- Login and logout status of teachers and students;
- Display student information message after logging in, including: student number (ID), course code, student name, teacher name. Play the following notification sounds: true, false, completed when logging in or out, and when face recognition is wrong compared to login.
- Display in real time, including: authentic results, time data, and distance learned of the driving practice session.
- Display time and distance data of students who have practiced and still have to practice compared to regulations.
* Function to record changes of teachers and learners on the vehicle:
- Instructors and students use cards or fingerprints to touch the device's card reader or fingerprint reader to log in or out of the system.
- The DAT device must record the time and coordinates of login and logout of instructors and students, and must have a signal to recognize these changes.
- The login and logout can only be done when the vehicle is stopped or parked.
* Function to authenticate learners via camera:
- The DAT device is capable of using facial recognition cameras to authenticate students.
- Authentication frequency is every 5 minutes.
- The DAT device records the time, coordinates, and validation results at the time of authentication.
* Warning function:
The DAT device must give a warning signal by flashing an LED or the display:
- Compare the student's facial recognition that does not match the information registered through the student's card or fingerprint;
- Hardware failures include: loss of GNSS signal, loss of mobile telecommunications signal, memory error, faulty camera;
- Unable to connect to the management server.
* On-device recording and data storage function
The DAT device must record and store data in the device memory with the following minimum information:
** Information about teachers and students
- Student identification information via card code or fingerprint and face image.
- Teacher identification information via card code or fingerprint.
- Time and coordinates of the start and end of each student's driving practice session.
- Time, accumulated practice distance, and time and practice distance of each student in a day.
** Information about the journey of the vehicle and the results of the student's face authentication:
- The journey of the vehicle (time, coordinates, speed), with a recording and storage frequency of no more than every 30 seconds when the vehicle is in the practice session.
- Student face authentication results (true, false), with the frequency of recording and storing no more than every 5 minutes when the vehicle is in the hands of a student to practice.
- Snapshot of successful login and logout. The photo taken at the time the device detects the student's face and identifies him via card or fingerprint is not of the same person.
* Function to transfer data to the server
- Data prescribed in Section 2.1.5 QCVN 105:2020/BGTVT issued together with Circular 37/2020/TT-BGTVT must be transmitted to the management server with a frequency of no more than every 5 minutes when the vehicle is in the practice session and is managed and stored as prescribed in Section 2.6 QCVN 105:2020/BGTVT promulgated together with Circular 37/2020/TT-BGTVT.
- In case of loss of connection to the server due to a line interruption, the DAT device must send back all previously recorded data to the server as soon as the transmission resumes, in chronological order from first to last (allowing sending old data and current data in parallel).
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