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3G wireless monitoring is based on digital signal processing and combines 3G wireless network transmission to achieve signal exchange, control, video storage, and on-demand playback. Through the establishment of a powerful central service platform, all encoding and decoding equipment and video storage in the system are realized. Unified management and centralized control of equipment. For users, only the central service platform is required to log in, browse, and use the entire network monitoring resources.
The outstanding advantage of 3G is its high-speed download capability. The ideal value can reach a transmission rate of 3 Kbps to 20 Mbps. However, as it is still in the promotion stage, the transmission rate has yet to be further verified. 3G currently has the drawbacks of limited wireless bandwidth capacity, limited access users, and prolonged access time. In the case of multiple users sharing, it is difficult to guarantee the speed and delay requirements of wireless video surveillance. The main disadvantage is that the traffic charges charged by operators are too high. Not acceptable to general customers. However, with the improvement of all aspects of 3G performance, the decline in traffic costs, the maturity of the network environment, and the widespread demand for large-scale wireless monitoring, it will also promote the further use of 3G.
WIFI wireless monitoring can be divided into analog wireless monitoring and digital wireless monitoring. Analog wireless monitoring can ensure video quality, but it is only suitable for point-to-point single-distance transmission (within 1KM), which is not suitable for scale deployment. In addition, because there is no modulation calibration process, the anti-jamming performance is poor, and the frequency is small. Therefore, in the case of a complex wireless signal environment, it will cause great interference, resulting in image confusion and loss. Therefore, it is not recommended to transmit in this way when there are multiple images to be transmitted. Digital wireless monitoring is currently used in the domestic market. Digital wireless has the advantages of analog wireless, such as large area (5-30 square kilometers), many monitoring points (5-500 points) need to add more relay, the situation is complex and the interference source is often used LP5800-WBSWIFI The base station is centered with the base station front-end CPE equipment and the transmission cost performance is very high. The digital radio has large capacity, strong anti-jamming capability, good confidentiality, the same transmission power transmission distance, less influence by terrain or obstacles, rich interfaces, and strong expansion capability.
The wireless monitoring field is getting better and better today. At present, wireless monitoring in the market mainly uses 3G as a carrier and wireless monitoring based on WIFI as a carrier. Each engineering project needs to install suitable monitoring equipment. Different wireless transmission technologies have their own applicable sites. In specific project applications, how should customers choose and differentiate between 3G wireless monitoring and WIFI wireless monitoring?