Reasons for the emergence of the industry and the background of the times
1.Vehicle monitoring points of demand
Vehicle environment is a dense and spatially closed mobile public places, the security situation is more complex, often occurring between the driver and passenger disputes, passengers mixed with thieves pickpocket cases, passengers because of grabbing a seat, crowded and other reasons leading to fights and other security time.
At the same time the vehicle in the process of running, will also occasionally occur vehicle scraping, collision and other traffic accidents, or with pedestrians there are bumps and other accidents, and even the existence of intentional porcelain phenomenon.
There are also vehicles in the field, after leaving the station, the vehicle completely by the driver to grasp the initiative, the supervisory staff can not view the vehicle running situation, can not monitor the driver in the car driving process, such as phone calls, chatting with passengers and other irregularities in behavior.
Occasionally, there are times of violence and terror that threaten the safety of public vehicles. In Chengdu, Kunming, Hangzhou, Guangzhou and other areas have occurred bus arson cases, for the personal safety of passengers caused by a huge accident. If there is no surveillance forensics, it will cause great difficulties for the detection of the case.
2.different models, the specific needs will also vary
Buses, cabs, coaches, school buses, freight cars, dangerous goods vehicles, law enforcement vehicles, special transport vehicles, trains, light rail, subway and other means of transportation, internal and external monitoring is required.
Bus Cases
Buses are generally installed more than five-way, the camera was the front of the car driver on the passenger door carriages before and after the next passenger door after the vehicle video camera is generally placed in the driver’s back seat or ventilation ducts, the display and alarm button is generally placed on the dashboard for the driver to watch, the line is generally buried inside the decorative so that it is beautiful.
Public transport industry applications, for example, vehicle video surveillance equipment has been integrated into the bus scheduling and operation system, with the original GPS terminal, character display, computerized automatic annunciator, the next passenger door display and many other vehicle equipment for the main functions as a whole, evolved into an intelligent bus scheduling and monitoring terminal equipment. It can also be connected with the internal and external speakers, on-board screen, CAN bus, bus IC card swipe equipment, intelligent coin-operated machines and multimedia players, etc., collect and control other on-board terminals, upload the complete operation data to the scheduling and monitoring center platform, and form a variety of bus operation analysis reports.
Cab Cases
Cab industry applications, for example, in-vehicle monitoring equipment has been integrated into the cab e-tricketing operation system, can take the role of the vehicle central control, to realize the interconnection with the cab intelligent information screen, meter, empty vehicle status plate, service evaluator, cab roof lights and LED screens, and even multimedia advertising playback terminals, card POS consumption terminals, etc., to collect the data generated by the operation of cabs and uploaded to the cab e-tricketing operation platform.
School Bus Dynamic Supervision System, Logistics Vehicle Cargo Matching System, Financial Escort Vehicle Operation and Maintenance Supervision System, Police Vehicle Dynamic Forensics System, Railway Carriage Supervision System and Other Industry Vehicle-mounted Intelligent Monitoring Systems
Industry Development Status
1.Development status after 2010
With the evolution of the original car recorder, GPS car terminal, car entertainment system and other car products, people are no longer satisfied with the vehicle information acquisition, positioning data acquisition, picture capture function.
Also need video recording, easy to restore the scene, and real-time visualization monitoring, thus facilitating the monitoring of driver behavior, as well as operational reporting data.
At the same time also requires docking with the vehicle electronic equipment, docking with the satellite antenna, wireless network docking, composed of a complete car networking system.
2.The composition of vehicle monitoring system
Vehicle monitoring system is generally composed of the front end of the vehicle hard disk recorders, vehicle professional cameras, vehicle LCD display, alarm buttons, status display terminals and supporting wires and cables.
A car will generally be installed 4 to 8 cameras to cover inside and outside, the data is stored to the hard disk under the protection of shock absorption, through the built-in GPS positioning, as well as 3G/4G wireless network, so that the collected data is transmitted back to the center of the mobile monitoring platform in real time to locate the vehicle position, to achieve remote monitoring.
As pictured:
3. Characteristics of in-vehicle monitoring system
Compared with the fixed-point monitoring equipment, vehicle monitoring adopts more complex technology.
Power supply: domestic ISO-7637-II and GB/T21437, wide voltage input: 8v -36v, to adapt to 12v and 24v different types of models, high power stable power output. Effective protection for voltage input, can adapt to low voltage at startup and high voltage at load throwing. Colleagues with super characteristics, standby time, to avoid excessive consumption of vehicle battery. At the same time, there is a short-circuit protection to avoid fire
Hard disk: vibration damping technology, to ensure the integrity of the data stability read and write, while protecting the hard disk, to avoid shaking when the picture is blurred
Totally enclosed and fanless cooling technology: driving process, water vapor and dust environment, requires good airtight, while the chip work needs to dissipate heat.
Aviation head: Specialized aviation head can effectively ensure the reliability of the connection and the integrity of the model transmission, to avoid vibration caused by loosening or falling off, POE technology network cable is more reliable.
Backup power supply: In case of emergency, the vehicle battery can not be powered by the backup power supply.
Wireless Network Adaptive Technology Adjusts the video encoding rate according to different signal strengths and weaknesses in different wireless network coverage areas.
Module Replaceable Technology 3G module can be automatically upgraded to 4G module.
One-button alarm technology Driver can trigger the button to transmit the picture back to the control center through wireless network in real time when emergency occurs.
Development trend of the industry
With the development of the corresponding basic technology, microprocessor technology, video decoding technology, wireless network communication technology, picture recognition technology, etc., the industry has also seen some trends change
1. high-definition
With the development of video decoding technology H264 technology to H265 technology, H265 decoding efficiency will reduce the size of the video by 39% -44%, the video from the earliest CIF (352 * 288) to the transition to the present D1 (704 * 576), to the present 720P 1080P
2.4G 5G network development
Meet the remote high-definition browsing monitoring screen, as well as broadband transmission requirements
3. Mass storage technology
High-speed serial technology, the surge in demand for large data transmission, eSATA, USB3.0 high-speed transmission, to meet the short time GB level data copy, hard disk from the earliest 320G to 200G 1T 2T 4T.
4. Video traffic statistics technology
Accurate statistics to provide data to meet the requirements of urban networking
5. Face Recognition Technology
Thieves Wanted criminals arrested
6. License plate recognition technology
Front and rear license plate recognition to meet the needs of mobile investigation
7.Video Intelligent Recognition
ADAS Advanced Driver Assistance Forward Collision Avoidance Warning Lane Departure Alarm Automatic Parking and other advanced functions
Fatigue driving reminder Utilizing image stitching and image correction
360-view function
8. Telematics System
Vehicle monitoring equipment are rich in expansion interfaces, access to various types of body signals, reserved serial interface, Ethernet port and other vehicle electronic terminals for interconnection and interoperability, through the CAN bus interface can be real-time collection of real-time data on vehicle operation, through its own wireless data transmission channel and the center of the operation and maintenance platform for the collection of information and interaction, just like a car networking system central control equipment. Thus, the transport enterprises and other real-time understanding of the driver’s driving behavior, fuel consumption statistics, overcrowding / overloading statistics, engine and other vehicle conditions, vehicle information summary, and ultimately allow enterprises to belong to the driver, vehicle, operation and other situations have a comprehensive understanding of the favorable economic benefits can be brought to reduce the loss of accidents, reduce the cost of management, increase the benefits of the enterprise!
9. Digital Surveillance Camera
Advantages of IP surveillance: support for higher pixels; from 400,000 to two million, high integration; high security, IP address is not easy to change; stable data transmission; easy to install; easy to detect and maintain.
Disadvantages: high requirements for the network; the network will be lost; technical indicators are not mature.
10. Intelligent
The development of automobile is actually demand-driven, traffic safety needs, travel efficiency needs, etc. To solve some of the traditional automobile and transportation problems, it is necessary to have automatic driving and intelligent transportation to participate. And the existing automatic driving and intelligent transportation is subject to a series of limitations, so there is a need for new ideas and new ways to enhance. It is important here that the future development is neither the intelligence of a single car, nor is it completely controlled by the cloud alone, but the integration of the two, so we call it a system in which the car, the road, and the cloud are integrated into a single system, and this is the future direction of development. This direction of development can improve the existing traffic safety issues, travel efficiency issues and a series of other traffic driving problems, we call it a new generation of intelligent transportation systems, a new generation of intelligent vehicle systems. In fact, the international community has done a series of explorations in this area, including the United States, based on the integration of intelligence, information technology, sharing and smart cities, which requires the use of Internet and intelligent integrated technology; recently announced in Europe to rely on different degrees of intelligence graded infrastructure to support autonomous driving. It is mentioned in the infrastructure classification (A, B, C level), the highest level (A level) need to use collaborative decision-making to do automatic driving, B level is the need to use collaborative perception, we all know that the word “collaborative” is not completely rely on the road side, not completely rely on the car side, the integration of the two and then do the perception decision-making, according to this kind of thinking development. Europe put forward this network road grading ideas, in China in 2016 we have put forward, intelligent networked vehicles is the integration of intelligent and networked, the integration of the third level is the European Union mentioned A level, need to have collaborative perception decision-making control into one, the future development is this idea.
With the support of the national program and the cooperation of the industry, we are doing a series of research and promotion work.
