Internal GPRS Module Pluggable Easy Installation For Smart Meter CSF0

Internal GPRS Communication Module for Smart Meter CSF0

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

- The General Packet Radio Service (GPRS) is a GSM­based wireless packet switched technology used to provide end­to­end wide area wireless IP connections.

- Internal GPRS communication module (aMeter Type) is a high­speed data processing technology which transfers data to users in “Packet” mode. Although the GPRS is a transitional solution from the GSM network to 3G, yet it has prominent advantages in many aspects such as the transfer rate, wireless resource management and billing.

- Users will have a statically or dynamically allocated IP address in addition to a phone number.

- This feature is ideal for a majority of mobile applications.

Technical Parameters

Note: Operation, storage and transport of the meter (GPRS Module) at the extreme of this temperature range (class 3K7) should only last for a maximum period of 6 hours.

Certificate

CE

Work Mechanism

The first step in the communication process is to have modules ‘online’ in the network (PDP context). Module can search network automatically when changing the SIM card and using public network. And it switch between the operating modes automatically based on the best network coverage. Module can automatic change of network settings is ensured when the SIM card is replaced.

Module continuously has PDP context in the mobile network. There can be data exchange ‘at any time’. In all wake-up scenario, the module will wait for TCP establishment from the Central System during a configurable time.

GPRS Module will be sever.it will create socket and connect to port, then listen the TCP connection from client. And MDM will be client. If it read data from sever, it will create socket to connect the socket of sever. When sever have listened the TCP connection from client, it will accept the connection. TCP connection are confirmed from both side, they could read and write data until end up by client. After they finish data changed, both of they will close TCP connection.

Function

User Interface

1. LED Indication

- NET LED

No SIM card or no registered to Internet,NET LED light blinks at the frequency of 64ms ON/800ms OFF；if registered on the network,NET LED light blinks at the frequency of 64ms ON/64ms OFF.

- PWR LED

The PWR LED will always blink when the module power on.

- RXD and TXD LED

During the data transmission RXD and TXD LED light blink.

2. Antenna Interface

If meter installation is very intensive in the metal box, it need to be used the long antenna. Screw the long antenna with SMA type on the connector by the hand. And the long antenna has to be put outside the meter box as far as possible from the meter.

Installation Requirement

Situation

For smart meter (aMeter Type) required communication function. Pluggable.

Dimension

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.