2012年11月20日星期二

About gprs modem

The Global System for Mobile Communications Service is the most widely adopted, digital cellular technology in use today. GSM uses time and frequency division techniques (TDMA and FDMA) to optimize the call carrying capacity of a wireless network. GSM also provides a number of carefully standardized and broadly supported capabilities such as Short Message Service (SMS), circuit switched data (CSD) and General Packet Radio Services (GPRS modem). Used on the quad band GSM850/900/1800/1900Mhz 2.5G modem is from mobile communication technology (GPRS), which has become widely used of industrials and utilities in recent years and many customers are seeking reliable, flexible and cost-effective data channel to build their information system. Many applications such as ATM, POS, SCADA and surveillance system will require data channels covered all country; this brings a bright future for GPRS data networks applications.Requirements towards information system are varied because of different features of numerous industrial applications. Mobile telecom service providers are required to provide industrial application solutions not only meeting common specifications and also individual special ones

2012年11月14日星期三

4G router can only work in the 4G network?

No, 2.5G, 3G, 4G router key difference lies inside the network communication module, 4G router, there are two, one is a quasi-4G essence WCDMA HSPA + technology, not true 4G. Another is the real 4G LTE technology. For example, The E-lins technology, H685 and H820 series router, specifically for substance networking router wireless communication design, use of public LTE / WCDMA / EVDO / HSPA + wireless long-distance network to provide users with data transfer function. The product uses a high-performance industrial grade 32 communications processors and industrial grade wireless module for embedded real-time operating system software support platform, while providing an RS232 (RS485/RS422 optional), one or four Ethernet network and a WIFI interface, which can connect serial devices, Ethernet devices and WIFI equipment, transparent data transmission and routing functions. The products have been widely used in the networking industry chain in the M2M industry, such as video surveillance, three tables (meter, water meter, gas meter), smart grid, intelligent transportation, smart home, finance, mobile POS terminals, supply chain automation, industrial automation, intelligent building, fire, public safety, environmental protection, meteorology, digitized medical, telemetry, military, space exploration, agriculture, forestry, water, coal, petrochemical and other fields.

2012年11月4日星期日

Industrial Application of gsm modem

let me tell you detail: Industrial Application of gsm modem 1) Remote Data Monitor and Control; 2) CCTV, security surveillance; 3) Water, gas and oil flow metering and schedule; 4) AMR (automatic meter reading); 5) Power station monitoring and control; 6) Remote POS (point of sale) terminals, ATM, 7) Traffic signals monitor and control, Traffic info guidance; 8) Oil field, weather forecast, environmental protection, street lamp monitoring and control 9) Early Warning of Mountain Torrent; 10) Fleet management; 11) Power distribution network supervision; 12) Central heating system supervision; 13) Weather station data transmission; 14) Hydrologic data acquisition; 15) Vending machine; 16) Telemetry, SCADA; 17) Vehicle logistics and diagnostics controlling; 18) Parking meter and Taxi Monitor; 19) Telecom equipment supervision (Mobile base station, microwave or optical relay station)

Q8 Vehicle GPS Tracker

Q8 is a GPS tracker for vehicle, mini size and light with ID certification. With Q8 GPS tracker, users can remote control to keep vehicle safty. Main Spec GSM: 850/900/180/1900Mhz quad band GPRS: Class 12, TCP/IP build in GSM Module Tracking sensitivity: -159dbm Acquistition sensitivity: -144dbm Locating time cost: host start