Product category:
Data acquisition Software and Communications
News Release from: Churchill Controls | Subject: GSM-Link
Edited by the Engineeringtalk Editorial
Team on 10 September 2004
Outstation uses GSM for data telemetry
Churchill Controls has launched a GSM-equipped Nano-Link telemetry outstation operating on mobile phone networks.
Churchill Controls has launched a GSM-equipped Nano-Link telemetry outstation operating on mobile phone networks The unit further strengthens the company's highly regarded Data-Link range, which includes leased-line and low-power-radio equipped Nano-Link and Micro-Link telemetry units
This article was originally published on Engineeringtalk on 14 Feb 2002 at 8.00am (UK)
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The GSM-Link outstation accepts locally four digital (status or count) inputs and two analogue inputs with data logging (3000 records per channel), pulse counts (3000 per channel) and digital events (500 events).
It is fully configurable from a mobile phone.
GSM-Link can communicate with both a mobile phone, using the SMS message service, and a basestation server, using both SMS and dial-up data calls.
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Data calls have a benefit over SMS when sending alarms, as there is no transmission delay.
SMS has the benefit that the network stores messages when the receiver is switched off, allowing GSM-Link to conserve power for extended battery life.
GSM-Link complements Churchill Controls' existing range of products, which primarily use low-power deregulated radio.
These have the advantage of providing permanent communication with no running costs, but the range is restricted to around 20km.
GSM has no range constraints, but there is a charge for each call.
GSM-Link has been designed to minimise call charges by allowing the user to configure the conditions under which it makes calls, and to log noncritical events so they can be downloaded later.
In addition to the use of a mobile phone, data can also be accessed at any other point with GSM coverage, and can be directly received by a PC-based server running the Churchill Controls PC-Link software package.
These data, once captured on the server, can then be made available to applications either on the PC server itself, or with access to the server via a local network etc.
The GSM-Link has been specifically designed to suit remote monitoring applications.
Low power consumption and sleep facility combined with the ability to energise any suitable transducer as required, allows it to operate autonomously on three standard D-cells for 12 months, making the unit ideally suited to reservoir level monitoring, pump monitoring, metering, CSO monitoring to name but a few.
The unit's small size, integral GSM modem and antenna make GSM-Link ideal for use in underground chambers, avoiding the need and expense of installing over-ground kiosks and running cables to them.
For users who wish to implement a larger scale monitoring system the PC-Link program allows the user to build a database of GSM outstations, which can then be polled for data on a regular basis.
These data are stored in a format that can be easily accessed by third-party Scada systems, or applications such as Microsoft Excel.
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