For applications designed to operate in potentially explosive industrial environments, Wavecom has developed the WMP120 Wireless Microprocessor, said to be the world’s first ATEX-approved GSM/GPRS solution for wireless machine-to-machine (M2M) communication.
ATEX (ATmosphere EXplosive) is the European Directive for certifying products for use in environments where there may be a risk of explosions from exposure to volatile chemicals, liquids or gases. The WMP120 is certified for ATEX equipment category 1 and 3, which allows its use in zone 0, 1 and 2.
The same GSM/GPRS platform can be used for both gas meters and metering gateways, with a common software architecture. On the meter, a WMP120 can simply be added to an existing sensor part and used as a GSM/GPRS datalogger. On the gateway, a 100% software and hardware compatible WMP100 can manage network technologies such as ZigBee, proprietary RF or PLC in addition to the GSM/GPRS communication.
The WMP120 can operate as a smart modem, as a shared processor with a host CPU, or as a standalone CPU natively executing the customer’s application. It supports three programming models: host AT commands, standard C executable and Lua scripting. It also supports the Open AT realtime operating system and the full range of Open AT plug-ins including Internet, security and GPS in addition to the IDS (intelligent device services) scalable platform for securely delivering upgrades and diagnostics over-the-air.
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