1.1 Application Requirements
In the long-distance transportation journey, the freight car is prone to cargo loss or damage, driver illegal operation and other events. At present, many vehicles are equipped with GPS positioning system, which can realize the function of vehicle navigation and scheduling, but it is unable to record video during the whole driving period. In the case of loss or damage of goods, safety accidents, etc., the real cause can not be found.
In addition, for customers of logistics companies, they are very concerned about the consignment status of goods, such as where the goods are, whether they are delivered in time, and when they are delivered. In order to know the information, we can only get the general information through telephone or network inquiry, and logistics companies are also tired of dealing with customers' inquiries about the direction and quality of the goods. As for the damage and loss of goods in transit, logistics companies, customers and insurance companies often have disputes about goods compensation because they can't distinguish the responsibility of events.
By installing 4G MDVR system on freight vehicles, the above problems encountered by logistics enterprises can be effectively solved. Compared with the GPS system which is widely used at present, the MDVR monitoring system can not only track and record the geographical location of the vehicle, but also monitor and record the whole process of cargo transportation and loading and unloading, so as to prevent the loss of goods, and can also be used as the evidence to distinguish the responsibility in case of cargo damage. With 3G/4G/5G wireless monitoring system enables managers and customers to know the location and transportation status of goods in real time through computers or mobile phones, so as to provide customers with better services and enhance the competitiveness of logistics enterprises.
1.2 Requirement analysis
user requirement analysis：
The audio and video signals of the camera are transmitted to the management platform of the video center through the 4G network of the on-board video recorder. The relevant personnel of the monitoring and management center can watch the map, vehicle location, vehicle running status, video inside and around the vehicle in real time;
1.3 Features of vehicle wireless video monitoring system:
4G The wireless vehicle monitoring system of "Tikvision" company adopts advanced h.264/h.265 video compression algorithm, streaming media video data compression technology, and 4G wireless communication technology. It supports remote 4/8 channel real-time video playback, and knows the vehicle location and driving track in real time. With four sensor interfaces, it can collect most of the sensor data on the car, including temperature, speed, braking, reversing and other information.
1.4 Main function description
（1）It supports 4 / 8 channels of video recording, and the frame rate is adjustable from 1 to 25 frames per second;
（2）Powerful network function, support 4G/5G application
（3）Advanced H.265/H.264 compression algorithm
（4）Support PAL / NTSC system, storage medium is hard disk or SD card
（5）At any time, remote view the vehicle's running state, the video inside and outside the vehicle, the location of the vehicle.
（6）Strong system management ability
（7）Mobility, can meet the requiement of any vehicle
