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MAPS

A high performance system for the recording and processing of any type of consumer meter readings.

Communications

MAPS is designed to make use of available communications wherever possible in order to minimise implementation cost and to reduce installation and commissioning time.

MAPS uses FTP over TCP/IP as the standard means of communication between the server side of the system and the field based hand held units.

The HHUs use dial up RAS, dynamic IP addressing and DNS lookup to connect to the office network. This minimises the impact of the system on existing networks by removing the requirement for fixed IP addresses for the HHUs and automatically accommodates any IP address changes of the office based servers.

All field based to office connection use standard CHAPS security to protect the office network from unauthorised access

This communications methodology is used throughout MAPS, whether the HHUs are Windows CE, Symbian EPOC or DOS based. This means that MAPS will work identically with a wide range of HHU types and physical connection methods.

 

MAPS Communications

Connection Types:

PSTN

MAPS can operate using standard dial up telephone connections (PSTN). In this case the field based hand held unit can dial into the system using any available Modem. This method would typically be used by a field operative working from home and connecting to the office in the evening.

 

GSM

MAPS can operate using the mobile phone network (GSM). This allows the interaction between the field user and the office to be more dynamic.

 

3GL

MAPS will inherently work on any network system that implements standard TCP/IP and RAS dial up connectivity. This includes the planned third generation mobile networks.

 

Wired Connection

MAPS will work as standard using RS232 wired serial connections between the HHU devices and any networked client workstation. This method offers zero communications costs and may be appropriate where field operatives work out of depots, which they attend regularly.