Embedded Systems (Modules)
Embedded modules are computer systems designed to perform one or more functions to a complete device such as a modem or a GPS receiver.
The modules can perform functions to a variety of computers and devices, for example, wireless networking uses a dedicated router or modem to route data over networks such as GSM/GPRS and 3G/HSDPA. The router or modem must have an integrated system to allow wireless connectivity and functions over the network. Basic functions; send SMS, access Internet, etc.
Breakdown and Characteristics
- Design modules to perform specific functions and tasks.
- Some modules can perform more than one function (e.g. send a SMS on alarm trigger - this is normally used in the M2M industry).
- The modules use programming instructions, known as firmware; these are stored in flash memory or read only memory chips.
Embedded module basic functions;
- Allow wireless communication (GSM/GPRS, 3G/HSDPA, etc) to complete devices (e.g. modems, routers and fire alarms)
- Set of AT and Java Commands
- “Always connected” internet connectivity
- Manage, control and monitoring remote machines
- Transfer data from machines to a central host (computer)