Data Concentration Unit AMI RF Data Converter DC220

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

- DC220 RF Converter unit, a Converter device will be a relay node in RF Mesh Neighborhood Area Network (NAN), and it will convert the downlink with BPLC to uplink with RF Mesh in Local Area Network (LAN).

• LAN: work as a BPLC Master-Node of LAN to form a Tree network, which reachs to the Smart Meter or Data Collector with BPLC Sub-Node inside.
• NAN: work as a RF Mesh Sub-Node to form a Mesh amongst themselves to reach the Gateway either directly or via hops in the Mesh, which used to extend the distance of communications.

- Willfar DC220 RF Converter integrates the DC2-PSZ1 BPLC NIC and DC2-RSF1 RF NIC.

• The BPLC NIC is according to IEEE 1901.1 standard.
• The RF NIC is according to Wi-SUN FAN Specification. Wi-SUN is open-standards based secure, interoperable communications for large scale IoT for Smart Utility and Smart City networks.

DC2 RF NIC integrates Zhonghui SWMW920S Radio Module, which certification identifier in Wi-SUN Alliance is WSA 0215.

- The DC210 RF NIC contains transceivers operating in 900 MHz.

- In a typical application, the module will be installed in electricity metering applications. The module will communicate with other network devices using the 900MHz. This can include other meters, relays, access points, Distribution Automation devices and other host devices.

OSI Layer – RF Mesh

OSI Layer – BPLC

Technical Parameters

Certificate

Wi-SUN/ IEEE 802.15.4g/IEEE 1901.1

Features

1. Full coverage the LAN and NAN which support AMI reach to meters 100%.

2. LAN master node, extending LAN coverage. NAN relay node, extending NAN coverage.

3. Layer 2 Ethernet transport – supports application layer protocols, including TCP/IP, DLMS/COSEM, ANSI C12.22/C12.19 etc.

4. Over The Air/Line upgradable

5. IP65 Enclosure, outdoor without box, wall or pole installation.

6. AC power source with wide voltage range, Backup battery operation at least 4 hours.

7. LAN BPLC is according to IEEE 1901.1 standard

• More reliable, Support data segmentation & retransmission, beacon network, physical layer FEC & CRC, powerful noise & error correction capability.
• Faster response, Single Reading<1S,Success rate 100%,Support for concurrency

8. NAN RF Mesh conforms to Wi-SUN FAN specification

• Feature complete specification is approved
• Supports IEEE802.15.4g/4e PHY/MAC, 6LowPAN, and IPv6
• Supports multi-hopping operation and frequency hopping
• Supports encryption (AES) and authentication (802.1x)
• Programmable frequency band (902~928MHz US/BZ) and PHY operational mode.

9. Highly Secured (certificate based authentication)

10. Easy to install and maintain (self-forming/healing mesh network, upgradeable)

11. Longevity (open standards, upgradeable)

12. Ability to scale easily to thousands of nodes (optimal use of frequency band)

13. Reliable and resilient (mesh, multiple channels, demonstrated interference tolerance)

14. Long range (sub GHz, mesh)

15. Low latency (high data rates, low channel utilization)

16. Energy Efficient (short transmission time, long battery life leaf nodes)

17. Low Cost (open standards, multiple silicon vendors)

18. Multi-vendor Interoperability (certification program for complete communications protocol stack).

Antenna Terminology

Typically, the external antenna cables are routed to a bulkhead SMA connector on the outside of the host enclosure. An external antenna solution will require safety isolation from the AC mains voltage.

Situation

For smart meter required data converting function. Pluggable.

Dimension
160*120*65 mm

Introduction

As the first company in Hunan Province to be listed on SSE STAR Market, Willfar is the pioneer manufacturer in China that can simultaneously provide related industries with all kinds of advanced electricity, water, gas and heat metering products and meters for power distribution, power quality monitoring equipment, a full range of energy data concentrators, relay protection equipment, switchgear products and equipment related to metering automation system and all kinds of application systems as well as services which cover the demand of the whole process of energy production, distribution, transmission and consumption.

Willfar Information Technology Co., Ltd always focuses on customers and takes full control of products’ delivery and deployment, including the process of designing, testing and experimenting as well as the manufacturing process of raw material. We attach great importance to production control plan, potential failure mode and product reliability design which require us to implement the production approval procedure and control the production process strictly so as to ensure the products’ quality.

On November 4, 2013, President Xi Jinping, also general secretary of the Communist Party of China (CPC) Central Committee, visited Wasion in Changsha. He visited the product showroom and production workshops, where he talked with workers and labor models. Xi spoke highly of Wasion's achievements in product development and market expansion and encouraged the company to step up innovation in technology, management, product, marketing and branding.

So far, Willfar has 396 valid patents, of which 26 are invention patents, 240 pieces for utility model, 130 pieces for design and 442 software copyrights; it has also received 10 technical awards of provincial or ministerial level or above. Willfar has participated in the setting of 15 national industry standards, 10 of which have been published.

Willfar Information Technology Co., Ltd takes "smart manufacturing capability" as one of its core competing powers by realizing the whole process data tracing and full-lifecycle management of product design, processing, procurement, production, logistics and service via SCM, CRM and APS on the basis of ERP, PDM, PLM and MES.

So far, Willfar has 396 valid patents, of which 26 are invention patents, 240 pieces for utility model, 130 pieces for design and 442 software copyrights; it has also received 10 technical awards of provincial or ministerial level or above. Willfar has participated in the setting of 15 national industry standards, 10 of which have been published.

The smart manufacturing technology research project of Willfar is the upgrading and reconstruction of the production facility which is about 100,000 square meters. It will become a leading digital factory with full coverage of information system, high level of production technology and automation.