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Long distance wifi module vehicle communication technology transmission

2022-10-12 674

With the development and progress of science and technology, vehicles play an indispensable role in people's lives. As manned tools, they appear everywhere. Especially with the development of the passenger transport industry, the national public transport operation disputes continue, the bus theft, robbery, and fighting continue, the driver and the flight attendants collect money together, and do not give tickets or fake tickets. These phenomena have been puzzling bus companies and public safety management departments. In Shenzhen, although the police have taken protective measures for 1000 people, the situation of mobile buses is still serious. In addition, changes in international forms and rampant terrorist activities make the safety of the public transport system particularly important. In many cases, the conditions in the car need to be recorded at any time for memory, assessment proof, evidence and other purposes.

Long distance wifi module vehicle communication technology transmission

Moreover, with the development of science and technology, wireless technology is becoming more and more mature. It has become an urgent need to keep abreast of the dynamics (scene inside the vehicle), current location, speed and driving related data of vehicles in the command center nationwide and even globally. Efficient and mature systems can make vehicle safety management twice the result with half the effort.


Due to the wide market and increasingly extensive application of vehicle mounted remote wifi module equipment, but due to the immature market and the lack of corresponding specifications for technology, there are many mixed bead products on the market. Our company has insisted on the research, development, production and sales experience of remote wifi module products for many years, and independently developed, designed and produced remote wifi module full real-time vehicle mounted communication technology wireless transmission based on customer demand.


Functions of remote wifi module on-board communication system:

1. H.264 compression mode, wide power supply design, vehicle visual/audio monitoring;

2. Four channels can monitor four pictures at the same time or one channel separately;

3. It can realize full real-time monitoring and high-definition video recording functions;

4. Vehicle acceleration collection function, which can collect vehicle acceleration information and alarm abnormal acceleration. It can input and record the driving route, license plate number, driver information, etc;

5. Data backup through network;

6. The flameout delay video function can independently close the control circuit, and the vehicle can continue to record after flameout;

7. Powerful client program can realize split screen display of video, playback, driving data and video data;

8. GPS positioning function to further improve driving safety (optional);

9. Video transmission function of remote wifi module to realize remote driving positioning and image wireless transmission, alarm and control (optional);

10. Support wireless network transmission and realize network-based management and control (optional);

11. Pure hardware compression. High stability and less storage space;

12. Customize the modification function according to customer requirements.


Bus, long-distance bus, public security fire fighting and traffic police vehicle, ambulance, passenger train, freight train and other vehicles have different requirements for installing on-board remote wifi modules. However, due to different road conditions, anti vibration processing, especially for memory equipment, has become the basic requirement for on-board video recorders. Long distance wifi module wireless transmission equipment, due to its anti-seismic function, can normally use data under severe vibration to ensure that the data is not damaged. It can be used under different conditions, such as long-term, high temperature and ultra-low temperature. So it is called the choice of many customers.


On board power supply system:

(1) Design a wide range of on-board power supply by ourselves, make different power supplies according to different models, and design various protection circuits, such as (instantaneous high voltage), low voltage startup, continuous peak voltage, strong interference current protection, etc. It can protect the machine under complex conditions such as unstable voltage and excessive interference. The power supply range can also be defined according to the actual needs of customers;

(2) Delay video function: independently designed delay circuit. When the vehicle stops running, the DVR can still work normally, when the vehicle battery is sufficient;

(3) Provides output of multiple groups of DC12V cameras and screen power supplies. In order to meet the high temperature environment in the vehicle and the temperature in cold regions in the north, the SD card video system is designed with low power consumption, low heat generation and other advantages, and is equipped with high-power fans and heaters.


The function of tachograph (automobile black box) is divided into two parts. First, the driving audio and video information recording function. The second is the information recording function of driving speed, steering, braking, etc. Among them, the driving sound and video information recording function are the functions that can be met by the general on-board SD card video. Recording the information transmitted by the sensors in the on-board monitoring scheme (automobile black box function) is a relatively advanced function of the on-board SD card video recorder at this stage. In addition to driving records, we also add functions such as vehicle information (license plate) and driver information overlay.


Powerful network remote wifi module remote image transmission function:

(1) RJ-45 network interface based on TCP/IP can control all operations of host through wired interface, wireless LAN and WAN

(2) Through the built-in remote transmission module, you can keep abreast of any trend and situation of global vehicles at any time in the monitoring center.


Scope of application: bus, long-distance bus, long-distance bus, logistics vehicle, truck, cash pledge vehicle, fire truck, ambulance, school bus, taxi, private car.


Features and advantages

1. Long distance wifi module wireless network module TD-SCDMA (mobile), WCDMA (Unicom), EVDO (telecom) can be built-in to realize wireless video transmission to the monitoring center.

2. Support GPS global positioning function.

3. Support GPRS/CDMA/EDGE/3G mobile browsing mode, and support mobile on-demand front-end devices and alarm linked video push.

4. H.264 video compression format, dual code stream output.

5. Support movement detection alarm and external linkage alarm, and provide RS485 alarm input and output interface.

6. Adopt SIP protocol for unified communication.

7. H.264 encoding format is adopted, with high compression ratio and clear image.

8. Support face recognition, passenger flow statistics and other functions. Support car black box function to collect more vehicle information.