The vehicle driving recorder is a digital electronic recording device that records, stores, and outputs data of the vehicle's traveling speed, time, mileage, and other state information about the vehicle's travel. The use of the vehicle tachograph has an important role in curbing the traffic violations such as fatigue driving, vehicle overspeed, restricting the driver's poor driving behavior, ensuring the driving safety of the vehicle and road traffic accidents.
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A complete car tachograph system consists of two parts: the vehicle host and the host computer management analysis software. Today, embedded technology is widely used. Most of the car tachographs currently used in China use 8-bit or 16-bit MCUs as processors. They use assembly language and have a simple structure and simple functions. At the same time, various products have great differences in data structure and format, data transmission methods, etc., which is extremely unfavorable for the standardized management and large-area promotion of recorders.
Celebrity drunk driving was arrested, drivers rescued people from being trapped, Xiaoyue Yue incident... Perhaps there have been too many traffic accidents in the past two years, and most of them have endangered human life, and small property losses, whether individuals or companies have to refocus driving Behavior monitoring and security issues, driving recorder demand is hot. At the same time, there are a lot of such products in the market, especially for the traffic recorders of passenger transport, rental, public transportation and other industries. Therefore, there is an urgent need for a fully equipped and capable video transmission tachograph.
Based on I.MX536, Shanghai Chenhan Electronics has developed a function and its rich driving recorder. It has digital video compression storage and 3G wireless transmission technology (Digital Video Record), combined with GPSSD card mass storage, driver IC card identification. , bus station, multi-channel data interface, car Bluetooth hands-free voice call function, reversing monitoring, WIFI hotspot, more car comfort and entertainment car MP3/MP4, car audio and video, car amplifier. The embedded structure design and integrated structure are installed according to the vehicle standard. It meets the requirements of the national standard GB-T19056-2003/the national industry standard of the Ministry of Transport.
A surveillance product with camera recording as its main function, its video stability clarity, transmission speed, and many factors determine the performance of the product. The biggest selling point is 3G video transmission technology, dual stream transmission, adjustable speed, faster transmission, and clearer and smoother video. Capture and alarm pictures can be uploaded via WCDMA or CDMA. Real-time monitoring of mobile targets enables real-time transmission of surveillance video and images. As for the clarity of the video, it uses H.264 video compression technology, and the image resolution is D1, Half, D1 or CIF. The system's built-in multimedia driving record analysis software can realize 4-way image synchronous playback, conditional playback, clip storage, character overlay, geographic information and travel record overlay, event analysis and record extraction.
For the security and stability of video recording, large-capacity SD storage image, powerful error correction function, to adapt to the security of video and data files in the vehicle environment. The alarm setting is very powerful. The gravity sensor connects various types of vehicles with sensors, which can realize emergency alarm, parking timeout alarm, overspeed alarm, overspeed warning, fatigue driving alarm, off-line alarm, power failure, low power alarm, GPS fault alarm, GPS Antenna open short circuit alarm, yaw alarm, segmented speed limit prompt and alarm.
Driver IC card identification is that the driver easily lays the card before driving, the system will record which driver is currently driving the car, the driver does not swipe the device buzzer will sound or the vehicle can not start, record the detailed information Once the vehicle is abnormal, it is easy to be identified and tracked. The bus station module can realize automatic reporting in and out of the car, driver shouting, driver attendance management, line information, company scheduling and driver interaction functions. Built-in high-quality text and voice broadcast, vehicle-to-station out-of-station automatic voice broadcast, car hands-free phone use in special circumstances, if necessary, add remote monitor to monitor and manage drivers, realize drivers and cars, cars and passengers, cars and background Management of all-round communication.
As a smart driving recorder product that conforms to the current situation, its function is undoubtedly powerful, 3G video image transmission, high-precision remote real-time positioning monitoring, and can also customize the corresponding module scheme according to the customer's vehicle transportation property, and has passed the national traffic. The detection of ministry targets will undoubtedly have greater competitiveness in the future market regulation.
At present, the industry is still in the stage of eliminating weak and standard standards. Too many non-standard products appear under the banner of low prices, which has impacted the living space of a few high-quality brands. It is believed that as market consumption becomes more mature, corporate decision makers or private users will be more focused on such products, and real video smart cars know that they can be used more.
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