The mobile DVR system belongs to the market segment of the traditional embedded hard disk video recorder. It is an emerging special product developed with the application of digital video and audio coding technology in vehicles.
Analysis of the five major application requirements of mobile DVR:
At present, there are various types of the mobile DVR camera on the market. As a market segment of traditional embedded hard disk video recorders, mobile DVR cameras (the definition of car hard disk video recording) have also been favored by many security companies. Mobile DVR cameras can be customized with various functions according to the application requirements of different industries
The main functions of police car camera systems in the public security industry include: video surveillance, wireless network transmission, and PTZ control. Traffic police pay more attention to how to obtain evidence for violations. The main requirements are: license plate recognition, blacklist comparison, etc. Industries such as urban management and transportation management also have similar needs with traffic police.
In addition to the simple on-board video monitoring function, the passenger transportation industry's demands for mobile DVR camera also include the functions of wireless network video monitoring (to understand the real-time situation inside and outside the car), GPS satellite positioning, vehicle scheduling, vehicle voice announcement, vehicle driving information record, multimedia entertainment advertisement broadcast, etc.
Banknote transport vehicles in the financial industry require the mobile DVR camera to work stably and reliably, and can instantly upload video and alarm information to the management center platform in the event of an emergency, and can interact with the monitoring center platform.
Rail transit, shipping, aviation and other industries also have real-time monitoring needs. In addition to the treatment of shock absorption and reinforcement of hard disk, these industries also need to pay attention to the difference between the power supply used in such projects and ordinary automobile power supplies. For example, the power supply of on-board equipment in the trains is mostly DC48V or DC110V, while the ordinary vehicle power supply is DC12V or DC24V.
Mobile DVR cameras should also be combined with related functions of automotive electronics. For example, CAN bus technology is generally used for data collection and upload of vehicle driving. Mobile DVR cameras should also have functions of CAN bus access, analysis and processing to record vehicle driving information through the hard disk and analyze and process important data.