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After recent major flooding incidents, and worries about global warming, combating flooding is high up in government priorities.

Jigsaw Flood Warning Products

Jigsaw have been working with Water Authorities in the UK and government bodies overseas to develop innovative, low cost sensor technology to make it possible, for the first time, to measure the status of rivers, coastal flood defences and the urban sewer network in real time, with a granularity which allow flooding incidents to be identified and pin pointed as they occur.

Jigsaw specialise in battery powered sensors and hubs so that installation in “out of the way” places is very much simplified.

Jigsaws urban Flood warning system focuses on the lowest points in an urban environment - the wastewater and sewerage networks. Low power radio sensors can be placed in domestic gullies, in sewer culverts, access chambers, CSO’s or even in road gullies to detect flooding events. Sensors have up to four alarm trigger levels to warn of a progressing flood event, with, typically, the first level at just above normal daily variance, then progressing from there to the roads surface.

Data from many sensing points is managed through a battery powered local hub, usually mounted on a convenient lamp post, which then transmits the data directly to the Internet using GPRS communications.

For more information contact :

sales@jigsawm2m.com

Once problems are identified, they are reported back immediately and displayed on a web site. GSM text, e-mail or other warnings are then issued to the required personnel so that immediate action may be taken.

Urban Flood Warning.

Rural Flood warning.

Ideally suited for small communities, rural holiday centres or caravan parks, often sited near rivers, the sensor is mounted in a plastic bollard which is sited on the water side of any flood defences. Two or three sensors (depending on geography of the site) are usually all that’s needed to give an early warning of flood water levels, and which direction the flood water is coming from.

As with other sensors, the system offers up to four flood alarm levels, the first being set just above normal annual water level cycles. Three other alarm levels can be set so that threat and rate of increase can be assessed.

The flood sensors are battery powered and so can easily be installed wherever they’re needed. Battery levels are fed back from time to time (typically weekly) so that, even when there are no floods to report, the operation of the system can be remotely monitored. Sensor batteries should last over two years before they need changing, depending on the number of flood events recognised.

Once the alarms have been recognised, they are immediately passed to the web server over the Internet using integrated mobile phone, GPRS technology. The web site has a list of e-mail and SMS targets which can be set to be warned when certain flood levels are breached.

The flood warning is presented on a Google Earth tm Map, with nearby flood warning sensors and their status also shown. Mobile or temporary flood defences may be set up easily as the sensor has an options GPS locator fitted so that their location is immediately updated when they are installed.

The Alarm web site can be made available to as many interested parties as required; initially directed to the web site by a warning text, the users can then monitor the progress of the flood and make timely action on damage prevention or evacuation. This may reduce insurance premiums.