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Video wireless module mainly consists of transmitter, receiver and controller. Wireless video module is a module that uses wireless technology for wireless transmission. It is widely used in wireless communication, video surveillance and other fields. Here are the detailed explanations of the three transmission modes of wireless video modules.
SmartAir technology is currently the only single-antenna mode gigabit-level wireless high-speed transmission technology in the communication industry. It uses multi-band OFDM air interface technology, TDMA low-latency scheduling technology, as well as advanced wireless communication technologies such as low-density parity check code LDPC, adaptive modulation and coding AMC, and hybrid automatic repeat request HARQ to achieve a transmission rate of up to 1Gbps.
This is also a kind of baseband transmission of video, which converts 75Ω unbalanced mode into balanced mode for transmission. It is a relatively good solution for transmitting monitoring images within 1km in a relatively complex electromagnetic environment. The monitoring image signal is transmitted through balanced symmetry.
Its advantages are simple wiring, low cost, and strong common-mode interference resistance.
Its disadvantages are that it can only solve the transmission of monitoring images within 1km, and only one video signal can be transmitted on one twisted pair, which is not suitable for large and medium-sized monitoring; the twisted pair is fragile and has poor aging resistance, and is not suitable for outdoor transmission; the high-frequency component attenuation of twisted-pair transmission is large, and the color of the image will be greatly lost.
This is the most traditional TV monitoring transmission method, which does not process the 0~6MHz video baseband signal and directly transmits the analog signal through coaxial cable (unbalanced).
Its advantages are small image signal loss in short-distance transmission, low cost, and system stability.
Disadvantages: The transmission distance is short, the high-frequency component attenuation is large when the distance is more than 300 meters, and the image quality cannot be guaranteed; one cable is needed to be laid for each video signal, and another cable is needed for transmitting control signals; its structure has a star-shaped structure, requiring large wiring volume and difficult maintenance, and poor scalability. It is suitable for small systems.
Neoway Technology focuses on providing Internet of Things access communication products and services for IoT operators, intelligent interconnection product manufacturers and other customers. The products cover access cloud, pipeline cloud, 2G/3G/4G/5G/NB-IoT/eMTC and other cellular wireless communication modules and integrated machines.
It is precisely based on Neoway Technology's globally pioneering access communication solution based on cloud management architecture that the company can provide stable, reliable, and secure access communication for the Internet of Things, making human society more environmentally friendly, efficient, and convenient. Welcome to inquire.
