A German university spin-off company with extensive expert know-how is specialised in environmental monitoring networks. They developed and offer realtime dataloggers based on GPRS and designed to work with customary sensors. The devices can, among others, be used for the measurement of ground water level, water temperature, water quality (pH-Value, etc.), meteorological data (wind, radiation, precipitation, air pressure, humidity), oxygen, pressure probel as well as soil parameters.
The system functions as follows:
Sensors that are linked to the device transmit the data to a data logger. The data logger collects and transmits the data via internet to a central server thus allowing the central collecting of data from several remote measuring sites in a secure data-base.
The transmission of data is based on M2M (machine to machine) technology. The measurement of environmental parameters and their transmission take place automatically, with the transmission intervals being chosen by the user. Transmission can also be event-driven, i.e., it is triggered when certain threshold values are exceeded (adjustable alarm management). Since the devices are characterised by low energy consumption, they can be operated with batteries that last up to 10 years, depending on the transmission rate. An overall amount of 60.000 transmissions is possible with one set of batteries. No further maintenance is needed.
The system includes a web application that allows the processing of data, its statistical evaluation (tables, graphs) and is easy comparing of different data sets. The web solution is available in several languages; more can be added without any problems.
Data sets can be easily exported into customary spreadsheet applications such as MS Excel and automatically sent by e-mail. An infinite number of data loggers can be connected to the system. The online platform displays the different loggers on a geographical map and provides information about their signal strength. It also provides data about battery voltage, relative humidity in the housing and chip temperature.
Special advantages compared with other technological solutions are the longvity of the system, a construction of the system for outdoor environments and the flexible combination of different sensors (pressure sensors, temperature, pH, redox, humidity, oxygen).
Partners sought are industry, water suppliers or public utility companies with environmental monitoring tasks for commercial agreements with technical assistance. where the German company would help to adjust the system and technical cooperation to further develop the system.