High-speed Wireless Broadband Dual-mode DCU Local Communication Unit FC-626NJ

The dual-mode data acquisition system is a new type of data acquisition system independently developed by Friendcom. The system adopts dual-mode communication technology of micro-power wireless and power line narrow-band carrier to realize self-organization and self-maintenance functions of data acquisition communication network. Through the combined use of the two communication modes, it is possible to avoid (two communication methods) respective communication blind spots, provide more and more reliable routing options, thereby improving the stability of network communication. Utilize the characteristics of the two communication methods to achieve speed priority and meter reading experience priority, and provide a high-speed and stable communication method for electricity consumption information collection.

• Working frequency band free of application: working at 470MHz ~ 510MHz, which belongs to the micro-power metering frequency band, without additional authorization fees or network third-party support.
• Microcellular network structure: It improves frequency utilization efficiency and network scalability, and supports multiple networks to work normally at the same time.
• Working frequency band free of application: It works in 470MHz～510MHz, which belongs to the micro-power metering frequency band without additional authorization fees or third-party support from the network. The wireless adopts GFSK modulation and supports three rate adaptations of 4/10/50kbps.
• Good communication effect: Broadband technology is adopted, so it has high data transmission sensitivity. Broadband micro-power data transmission adopts standard secondary frequency conversion technology and standard FSK modulation and demodulation method. It has the characteristics of strong anti-interference ability and long transmission distance. It can be applied to industrial environments. The wireless carrier can be switched freely, which solves the problem of wireless islanding. The problem of carrier islanding makes communication without dead ends.
• High network transmission reliability: The system adopts reliable MESH mesh topology, slow frequency hopping, multi-hop transmission, real-time routing update and other technical means to make the network coverage larger and more robust.
• Convenient maintenance: supports mobile access of handheld devices, making system maintenance convenient and simple.
• The carrier adopts FSK spread spectrum modulation and supports five speeds of 100/400/800/1600/3200bps. Self-adaptive meter reading speed self-adaptive: Supports automatic matching of meter communication speed without manual setting.
• Self-adaptive meter reading rate: Supports automatic matching of meter communication rate without manual setting.
• Extended functions: support phase recognition, station area recognition, zero line reverse connection recognition and other functions.