Micro-power Wireless Communication Unit

The design and production of micro-power wireless communication unit conform to relative technical standards and specification (2013 version) of the power user electric energy data acquisition system of State Grid Corporation of China.

The micro-power module of concentrator can be directly embedded in the low-voltage I type concentrator in line with the standard of the power user electric energy data acquisition system (2013 version) to support corresponding micro-power wireless intelligent electric energy meter and I/II type micro-power wireless collector to form an internet, realizing the bidirectional communication between concentrator and intelligent electricity meter and completing the data collection of onsite meter.

The micro-power module of electricity meter can be directly embedded in the low-voltage type I collector or single-phase intelligent electricity meter in line with the standard of the power user electric energy data acquisition system (2013 version) to support the type I concentrator of local communication unit of corresponding micro-power  to form an internet, realizing the bidirectional communication between concentrator and intelligent electricity meter and completing the data collection of onsite meter.

● High penetration and diffraction, and over 1500m outdoor single hop radius

● Adopting wireless dynamic self-networking technology with completely independent intellectual property rights 

● Supporting micro power wireless-connected connectivity standards and hybrid networking with products manufactured by other companies

●  Supporting dynamic detection to link status and having high data transmission credibility

●  Supporting self diagnosis of equipment operational conditions and  long-distance upgrade

● High reliability, maintenance-free, low-delay,and convenient operation

● Standard physical design which supports plug and play and hot plug.

● DL/T 698, Data Acquisition and Management System for Electrical Energy

● Q/GDW 1374.3-2013, Power User Electric Energy Data Acquire System Technical Specification, Part 3: Communication Unit

● Q/CDW 1375.2-2013, Power user electric energy data acquire system type specification, Part 2: Concentrator

● Q/GDW 1376.2-2013, Power User Electric Energy Acquisition System Communication Protocol, Part 2: Concentrator Local Communication Module Interface

●Q/GDW 1376.4-2013, Power User Electric Energy Data Acquisition System Communication Protocol, Part 4: Micro-power Wireless Data Transmission Protocol

Technical Specification

● Working Frequency：         470～510MHz

● Frequency Space：        200KHz

● Modulation System：         GFSK

● Air Speed：         10 kbps

● frequency stability：       ±10ppm

● Output transmit power：     <50mW

● receive sensitivity：       -113dBm@10 kbps，BER=1.0 x e-3

● Channel number：           32TCH、1MCH

● Networking mode：         multihop self-organized network 

●  Land Communication Distance：   >1500m

● Network time：Self-organized network time of typical application scene ≤10 minutes

● Maximum Relay Depth：    7 of 8 level（Connectivity standard）

● Local communication interface：     TTL232

● Serial port rate：         9600bps

● Working voltage：         12V±1V 

● Working temperature：         -40℃～+75℃

● Operation power consumption：：       Receiving current<40m

                                             Emission current≤200mA

● Product form：The product conforms to Q/CDW 1375.2-2013, Power user electric energy data acquire system type specification, Part 2: Concentrator, meet the technical requirement of local communication unit of low-voltage I type concentrator and use SMA Standard external antenna.