Six IoT Technologies in Intelligent Vehicle Security Monitoring
richmor
richmor.net
2018-05-04 16:10:34
Intelligent vehicle anti-theft monitoring system is a new technology for intelligent traffic development. It can effectively remind and utilize the attribute information and dynamic and static information of the control vehicle on the network information platform, and implement the monitoring of the running status of the vehicle according to different functions of the vehicle. Provide comprehensive services. According to the overall requirements of the intelligent vehicle-mounted monitoring system, it should have such functions as anti-theft, management, and monitoring. It consists of vehicle host controllers, sensor network devices, control terminals, smart Android mobile phones, communication devices, and language identification devices. It mainly uses the following six technologies:
1. RFID technology: RFID is the abbreviation of Radio Frequency Identification (RFID). It means that when a recognition system does not have mechanical or optical contact with a specific object, it can recognize and write specific information through radio signals. , Widely used in logistics management. RFID systems usually consist of transponders, readers, and application software systems. Depending on the operating frequency band, RFID technology can also be applied in different fields. For example, the low frequency band 125-135 kHz is widely used in access control management, vehicle management, attendance, and fixed equipment due to its good penetration capabilities; the high frequency band 13.56 MHz has been widely used in fields such as security, logistics, and personnel identification; The frequency band 860-960 MHz is used in mobile commerce, logistics management and other fields.
2. GPS technology(Mobile DVR with GPS): GPS is the abbreviation of the Global Positioning System (GPS). Users continuously send their own ephemeris parameters and time information through satellites. After calculation, the receiver's three-dimensional information, speed, and time information are calculated. Constellation, ground control and user equipment consist of three parts. GPS has all-around advantages such as all-weather, high-precision, and automation. It is widely used in many fields such as military, civil transportation, precision agriculture, and daily life.
3. Wireless video communication technology: As the front-end monitoring points of the vehicle-mounted system are all outdoors, the environment is relatively poor, so the traditional wired method cannot be used for transmission, and only wireless transmission can be adopted. Wireless video communication is to compress the camera image through the video compression encoding module and transmit it to the GPRS/CDMA/EDGE network through the smart wireless communication terminal to realize the interaction of video data, transmission/reception, encryption/decryption, plus decoding, link control and maintenance, etc. Features. According to the application, the real-time moving image and other data information of the vehicle-mounted terminal are transmitted to the nearest Unicom or mobile communication network from the user, and the real-time image information can be obtained from the control terminal of the system through the Internet.
4, image pattern recognition technology: image pattern recognition and on-board monitoring system combined to form such as advanced driver assistance system ADAS can provide drivers with front-end collision avoidance, lane departure warning, automatic parking and other advanced features, the use of image mosaic and The video image correction technology can provide the driver with a 360-degree look around function, and the video-based human eye analysis technology can determine whether the driver is in fatigue driving, and provide the driver with more safe and reliable driving assistance functions.(Vehicle video recorder manufacturer)
5, large-capacity storage technology: With the development of high-speed serial bus technology, the demand for large data transmission increases rapidly, eSATA, USB3.0 and other high-speed interfaces, to meet the needs of massive audio and video transmission and storage, in a shorter time Complete copy of GB-level video data. At the same time, the 2.5-inch hard drive capacity for professional surveillance-class on-vehicle environments has also expanded, from the previous capacity of 320GB, 500GB to single-disk 1TB, 2TB storage space.
6. Video encoding and decoding technology(FHD Dvr video recorder 1080p): Video encoding technology compresses digital video captured by front-end cameras. In the case of ensuring image quality, efficient image compression is used to save transmission bandwidth and video storage space. It continues to advance with the times as the business develops. In the future, video encoding and decoding technology will move toward 3D codec, smarter, and higher compression performance.