1. Different definitions

　　Driving recorder: Commonly known as car black box, it is a digital electronic record device that records and stores status information about driving speed, time, mileage and other state information related to vehicles, and can output data through interfaces.

　　Driving recorder: It is a vehicle electronic equipment that can record road conditions in a timely manner. After the driving recorder is installed, the video images and sounds of the entire driving process can be recorded to provide evidence for traffic events. People who like self -driving also use it to record the process of conquering difficulties and danger.

　　2. Working principle

　　Driving recorder: Through special vehicle GPS terminals and professional intelligent navigation software, path search, destination inquiries, route planning and recommendation, driving voice prompts during driving process.

　　Driving recorder: Digital video records and recycled the road conditions in front or around the vehicle, and even record information such as recording, vehicle acceleration, steering, and braking in the vehicle. The internal sensor can set the agility of impact power. When the external impact is greater than the set value, the live data of the recorded impact can be provided for the traffic accident.

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