What are the solutions of mobile DVR? How to choose?

At present, there is a VOC scheme on the vehicle, 4 channels and 50 frames, low-end market, cheap, and relatively cost-effective.

Many of the resource solutions and HiSilicon's solutions are directly used for civilian use and use in vehicles, and their file formats are not suitable for complex environments in vehicles.

HiSilicon's solution is specially designed for the car, with a dedicated file format and dedicated software, which is better and suitable for use in the car, but it is relatively high. There is also a 3G product, which also needs a dedicated file format. This one has a high software weight.

Choosing a car, there is a choice of company is also very important, to have a responsible company, not to do a single count, such a customer will bring a lot of trouble, and the maintenance of the car is also very critical, service is the top priority.

There are more HiSilicon and Zhiyuan, and Ti is making high-end machines, and Wycombe Abbey has fewer main ultra-low-end machines;

Now there are many companies that do on-board DVR, but there are very few producers who can really get the technical strength, especially those who can do 3G on-board DVR equipment production; The production of this mobile video recorder is mainly concentrated in Shenzhen;

The actual operation of the enterprise and the technology of the installation guidance are very different, and now the vehicle is not to do the product, but to do the service and technology; The situation in the car is more special;

Note: The selection of the host scheme, the detection of the host power supply (low voltage and high voltage) power supply is very important, the practicability of the appearance (shockproof, heat dissipation, environmental adaptability), the workmanship of the main structure of the product, and the storage method of the product (the hard disk is relatively delicate, but the storage capacity is large; SD card is more shockproof and has a small capacity), if you choose a 3G+GPS host, you should also pay attention to the quality of the software, doing 3G remote is already a part, but the software is the key to reflect the technical content and product performance;

The mainstream brand products are basically the same, and they are all relatively reliable, mainly **. See if you have any special needs, such as 3G mobile, ordinary general needs are very large products can be.

It is recommended to use a car USB flash drive recorder.

There are customers installed on the luggage rack and there are also under the driver's seat.

The vehicle monitoring system mainly includes cameras (cameras with audio), vehicle four-channel digital video recorders and other equipment. Shenzhen Wansheng company provides the following installation methods:

Camera: The front camera can clearly monitor the face of the passengers on the bus, anti-theft,

Front door camera: installed above the driver's seat, mainly to monitor the driver's driving behavior, while monitoring the road conditions in front of the car, when a traffic accident can provide traffic information basis.

The rear door camera, the camera is installed at the top of the rear door of the car, the monitoring range is the rear of the car and the back door, can monitor and record the situation of the back door of the car, prevent the occurrence of the accident of pinching passengers and prevent criminals from committing crimes at the ticket office, all are infrared color (or black and white) cameras, even if there is no light at night, it can also ensure that the scene can be seen clearly.

Ticket office camera: Installed above the fin box or ticket seller, it can monitor the process of coin insertion, card swiping or ticket sales by passengers, and prevent fare evasion and ticket theft by drivers and passengers.

Car four-way DVR: The car DVR is installed under the seat or on the luggage rack, and the following points should be paid attention to when installing: the car DVR needs to be powered from the battery, and must not be directly connected to the engine; The mobile DVR must be firmly fixed; The mobile DVR can not be installed close to the engine (too hot) or can not dissipate heat, and it is also necessary to pay attention to waterproof while preventing high temperature.

1. Ruidun International (Hong Kong) **** 3G series car SD card recorder, in addition to having a four-way surveillance video function, Shuhe also has a powerful network transmission function, which can realize GPS positioning, 3G network transmission, etc., is a powerful, highly integrated module and highly scalable device.

2. Support four-channel surveillance video, with CIF, HD1 and D1 resolutions, with a total resource of 100 frames of CIF seconds;

3. H 264 main profile encoding format is adopted, with high compression ratio and clear image;

4. Adopt a special file system to encrypt data and effectively protect data security;

5. Support GPS global positioning function and accurate timing;

7. Support WIFI wireless to sing the liquid Bi Zheng, easy to obtain video data;

8. Support the function of car black box and collect a variety of vehicle information;

9. Support IP voice intercom, support vehicle-specific UPS;

10. Fully enclosed structure, fanless design, natural heat dissipation of aluminum profiles, waterproof and dustproof;

11. Mini body, modular design, flexible selection of various modules according to user requirements;

12、.Using SD card as the storage medium, it is convenient and fast to read data;

13. +8 36V wide voltage design, suitable for various models;

14. Support 12V 2A power output, which can supply power to peripherals;

15. The external connection cable adopts a special aviation plug for the vehicle to ensure the long-term stable operation of the equipment;

16. High integration capability, GPS, GPRS CDMA Edge 3G and WiFi modules can be built-in at the same time.

Shenzhen Hongdian's is also very good.

Recommend Shenzhen Hongdian's wireless vehicle monitoring system, there are many successful cases in the industry, you can learn about it.

Choose a good brand, choose the technical service in place, choose the most reasonable, choose the most widely used in various industries, to sum up, here is recommended Shenzhen Hongdian's car DVR.

Hello. Find a professional manufacturer, I don't understand that, we are a manufacturer of hard disk video recorders.

1.On-board 3G wireless monitoring real-time monitoring - the command platform remotely retrieves each front-end camera at any time to view real-time images.

2.Real-time recording function of on-board 3G wireless monitoring - the command center remotely previews the sound information of the front-end picture at any time.

5.Overspeed alarm function - when the vehicle is speeding, the device will send the alarm information to the platform, 6Overspeed alarm linkage function - when the device overspeed alarm occurs, the server terminal will automatically record the video of the overspeed alarm, and save it directly locally.

7.Automatic recording of highway entry and exit – for the right number of passengers on board.

8.Information overlay function - the speed, position, latitude and longitude, time, license plate number, and image of the device are superimposed, and 25 frames per second are recorded.

9.Passenger vehicle - ant line function plans the operation line of passenger vehicles into a line according to a certain scale, the starting vehicle travels in a straight line, and the returning vehicle is sorted up and down according to the departure sequence at both ends of the line segment; Straight lines are marked with different colors first, national highways, and high speeds.

10.Gimbal control - support remote gimbal control, control the zoom, zoom and zoom of the camera of the gimbal.

11.Door magnetic alarm function - support three-way door magnetic alarm function, when the vehicle opens the door time for alarm recording.

12.Door opening alarm linkage - support door opening alarm linkage, platform video automatic recording, sound alarm.

The mobile DVR belongs to the market segment of the traditional embedded DVR chain defense liquid machine, which is an emerging special product developed with the application of digital video and audio coding technology in vehicles. The vehicle-mounted hard portable disk recorder combines advanced technologies such as digital video and audio codec, large-capacity data hard disk storage in harsh environments, automobile pure electronics, wireless network transmission, GPS satellite positioning, etc., to realize video and audio monitoring of the passenger transport industry, special vehicle industry and other related fields.

According to the application requirements of different industries, the mobile DVR can be customized with a variety of functions.

Customized functional analysis for the passenger transport industry.

In addition to the simple on-board monitoring function, the passenger transport industry also needs wireless network monitoring (to understand the real-time situation inside and outside the car), GPS satellite positioning, vehicle scheduling, vehicle voice reporting station, vehicle driving information record, and multi-entertainment advertising.

Functional analysis of police vehicle customization.

License plate recognition, blacklist comparison, etc. Industries such as urban management and transportation management also have similar needs to the traffic police.

Customized functional analysis for the financial industry.

The financial industry cash transport vehicles require the vehicle-mounted hard disk recorder to work stably and reliably, and in the event of an emergency, it can upload the first and alarm information to the management center platform in real time, and can interact with the monitoring center platform.

Automotive electronics customization capabilities.

The vehicle DVR should also be combined with automotive electronics-related functions, such as: car driving data collection and upload generally use CAN bus technology, the vehicle DVR should also have CAN bus access and analysis and processing functions, record the relevant information of the vehicle through the hard disk, and analyze and process important data.

Other vehicle car DVR applications.

Rail transit, shipbuilding, aviation and other industries also have the need for real-time monitoring, these industries need to increase the hard disk shock absorption and reinforcement before the code, but also need to pay attention to the difference between the power supply used in such projects and ordinary automotive power supply, for example: the train provides most of the power supply of on-board equipment DC48V or DC110V, while the ordinary on-board power supply is DC12V or DC24V

The working situation of the mobile DVR after it is installed and put into work is as follows:

Recording: Set up according to the requirements of the passenger transport company, the driver starts the car, opens the door of the car to get on and off the passengers, the car DVR enters the recording state and starts recording, after getting on and off the passengers, close the door and stop the recording after 15 minutes. The company stipulates that drivers and passengers must sell passenger tickets within 15 minutes after closing.

Each video segment becomes a video package and is stored on the hard disk.

Operation permissions: The company has set up administrators. The administrator has the right to operate the DVR on the side of the vehicle.

The driver and crew are the operators and are authorized by the administrator. In general, the operator cannot stop recording, change recording settings, etc., but can turn on and off the sound of advertising entertainment programs, and can perform operations such as playing back video segments.

Advertising entertainment: The operator can be autonomous, and can set the timing of the advertisement, and the program resolution can reach 704 576, and the program is easy to replace.

Playback: The company or the traffic police department can get on the bus at any time and ask the driver and crew to play back the video data to check whether there are various violations of rules and disciplines such as overloading, speeding, collecting money and not buying tickets. In the event of a case, the public security officer may request that the relevant video materials be played back to confirm the criminal suspect.

After the passenger transport company installed the on-board hard disk video recorder, the video segment clearly recorded the disciplinary violations of individual drivers and passengers in selling tickets, and the company gave punishments. Since then, the number of violations of discipline by drivers and passengers in the car installed with the car DVR has been significantly reduced, and the service quality has increased significantly; The video segment also clearly recorded several cases of criminals taking other people's things in the car, providing the most powerful evidence for the Public Security Bureau to solve the case; Several hotels and restaurants along the way advertised on the car, and the effect was good; The company is now planning to install more than 250 of the original mobile DVRs.

Summary: With the increase of social recognition, various different levels of requirements have also appeared. With the continuous improvement of its function, its scope of application will be wider and wider, and its role will be greater and greater, not only in long-distance buses and buses will be widely used.

Moreover, it has a wide range of uses in trains, ships, ambulances, fire trucks, public security traffic police vehicles, material transport vehicles, station wagons, organs, schools, kindergartens and other units. The mobile DVR will play a very important role in making the society more civilized and the life safer.

1.Anti-vibration performance of mobile DVR. The vehicle DVR is used in the moving vehicle, due to the different vehicle conditions and road conditions, the vibration is relatively large, which has a great impact on the hard disk reading and writing data, and the damage to the equipment is very large.

Therefore, seismic technology has become the most basic requirement for in-vehicle DVR. Although embedded systems are used in the same way as ordinary DVRs, in-vehicle DVR technology is more complex than ordinary DVRs, and the key to solving the orange segment is also different. Therefore, the two are two completely different concepts.

At present, there are mainly measures such as shock absorption for the whole machine, shock absorption of hard disk rack, and shock absorption of hard disk.

2.The mobile DVR needs to have a stabilized power supply. Because in the process of driving, the vehicle will ignite, brake, step on the accelerator and other actions, these behaviors will cause the output voltage of the vehicle to fluctuate in different amplitudes, which can easily cause the vehicle DVR to burn out.

Therefore, in-vehicle DVRs must have a wide voltage input capability to accommodate this voltage variation.

1.The mobile DVR has good dissipation or heat performance. Due to the influence of the environment and weather during the operation of the vehicle, the temperature difference changes greatly.

This places high demands on the heat dissipation performance of in-vehicle DVRs. Therefore, if the heat dissipation performance is not good, the life of the product will be reduced, and the monitoring effect will also be affected. At present, some products dissipate heat through fans, and some dissipate heat through the fuselage.

Therefore, when purchasing, it is best to run for a period of time, and then measure the temperature of the fuselage, disturb the force and ** the actual effect of the image.

2.Car DVR image clarity. The clarity of the image directly affects the monitoring effect, so when buying a product, it depends on which processing chip is used, which compression format, and what resolutions are supported?

At present, the product generally supports CIF to D1, using D1 video recording and CIF transmission. To observe the actual effect, you need to record a video at different resolutions, observe the playback effect of the lead destruction, whether the picture is clear, and whether there is a time delay.