Willfar Information Technology Co. Ltd.
Stock Code: 688100.SH The Pioneer in Smart Utility Service and IoT Solutions
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Communication Module 4G Communication Module for Internet Smart Meter WFET-800S
Company Profile
Willfar Information Technology Co., Ltd.
- Established in 2004;
- Listed on the STAR Market of the Shanghai Stock Exchange in December 2019;
- Leading supplier of meter reading (AMI) equipment and operation service;
- The first company to develop "One DCU Reading Multi-meter" solution in China;
- The first company to have large-scale application of technologies and systems like "CPU smart-card Charge and Control", "One DCU Reading Multi-meter", LoRa-based RF Communication and "District Metering Area (DMA)”
Introduction
- WFET-800S 4G module is for Internet Smart Meter.
- The product adopts mature and stable 32-bit high-performance processor hardware platform and components.
- Delicate designed and achieved technological breakthroughs in machine stability, hardware reliability, software fault-tolerant ability and technological advancement.
- The products have the characteristics of powerful function, easy to operate, stable system, convenient maintenance, small size, convenient on-site installation and so on.
- It could provide an ideal solution for remote transmission of energy efficiency data collection at decentralized metering points.
Technical Parameters
| Item | Parameters |
| Technical Specification |
Q/GDW 1374.3-2013,Q/GDW 1379.4-2013 Q/GDW 1356-2013 |
| Master Station Specification | Q/GDW 1376.1-2013, DL/T698.45 |
| Electricity Specification | DL/T 645-1997, DL/T 645-2007 |
| Security Encryption | Support 698 ESAM encryption (optional) |
| Support Network | TD-LTE,FDD-LTE,WCDMA,TD-SCDMA,CDMA2000,CDMA,GSM |
| Local Interface |
1-way for meter reading, RS-485 interface, 1-way for maintenance interface, 1-way for modulated infrared light, 1-way for USB interface |
| Remote Upgrade |
Multi-process mode, The upgrade does not affect the normal work, Support breakpoint resuming |
| Storage Capacity |
Bulky Capacity FLASH, Data could be stored for 10 yrs when power outage happening |
| Environment | Relative Humidity: ≤95% |
| Normal Working Temperature: -40℃～+70℃ | |
| Limit Working Temperature: -45℃～+80℃ | |
| Power Consumption (Static) | ≤2W |
| Reliability | MTBF≥7.6×104h |
| Structure |
Dimension (L x W x H): 94.8mm×65mm×24mm (Three Phase) 70mm×50mm×22.7mm (Single Phase) |
| Sealed Design, Waterproof, UV resistant, Flame retardant |
Certificate
Q/GDW 1373-2013, Q/GDW 1374-2013, Q/GDW 1376.1-2013, DL/T 645-1997, DL/T 645-2007
Features
1. Can be connected to various domestic and international meter protocols and specification at the same time.
2. Integrated 2G/3G/4G multiple communication technology, power supply for each module can be separately controlled, which could prevent the system halted.
4. Safe and reliable control technology with multi-level protective measures;
5. Active fault reporting, which can locate and solve the fault instantly.
6. The use of large-capacity electronic disk and embedded file management technology can ensure the preservation of historical data for a long time.
6. Function module remote upgrade and remote maintenance, flexibly meet the requirements of system expansion on function in the future;
7. Sealed design
8. Waterproof and UV-resistant, flame retardant material.
9. Advanced data compression and encryption technology
Function
1. Using high-performance 32-bit embedded hardware platform.
2. Using a stable and reliable real-time embedded Linux operating system software platform.
3. Modularization hardware: hardware independent, modular design, matching with the base meter, does not affect the metering function, supports hot-swappable function.
4. Modularization software: the application software adopts modular programming mode, and each application module runs independently and does not influence each other, so it can monitor the operation status of each module. When the module runs abnormally, it can recover automatically, thus ensuring the reliability of the software operation. The application software automatically identifies and adapts the GPRS/CDMA/3G/4G/ Ethernet module.
5. With the integration of GPRS/CDMA/3G/4G/ Ethernet and other communication technologies, the power supply of the communication module can be controlled separately, which can further prevent the data communication module from crashing.
6. Can be connected to various domestic and overseas meter protocols at the same time.
7. Safe and reliable control technology with multi-level protective measures.
8. It has the function of active fault reporting, which can locate and solve the fault instantly
9. The use of large-capacity FLASH and embedded file management technology can ensure the preservation of historical data for a long time.
10. Function module can be remotely upgraded and remotely maintained, enable future function expansion for system.
11. Advanced data compression and encryption technology
Situation
For single or three phase watt-hour meter required remote data transmission and automatic control.
Dimension
Single Phase Meter:70mm×50mm×22.7mm (L x W x H)
Three Phase Meter:94.8mm×65mm×24mm (L x W x H)