The e-boxes registered in EnTrak can be retrieved via the Web interface as illustrated in Figure 1. Users can view the list of the e-boxes installed in a country by selecting the country and clicking the ‘Show e-boxes’ button. The list contains the basic information on the e-boxes including locations and the serial numbers. Each e-box has connection with a number of sensors. To see the list of sensors connected to a certain e-box (A062166112), the serial number must be typed in the ‘e-box ID’ field. The list of the sensors is displayed by clicking the ‘Show sensors’ button along with current monitored values and sensor IDs as shown in Figure 2.

The historical profiles of the parameters (e.g. temperatures, humidity, occupancy, CO, electrical power etc) monitored through the e-box system are also queried with the Web interface. Figure 3 shows the profile of temperature monitored at the e-box of ‘A062166112’. The sensor ID is referred from the sensor list obtained from the previous query process (Figure 2). The periods and resolutions of the profile graphs can be selected by users. Since the data are monitored every 30 seconds, the options of resolutions are broad from minutely to monthly. The hourly-based profiles of CO and occupancy are displayed in Figure 4 and Figure 5 respectively.

Fig 1 List of the e-boxes queried via the Web interface.

Figure 2 List of the sensors connected to a specified e-box.

Fig 3 Temperature profile monitored at the specified e-box.

Figure 4 Occupancy profile monitored at the specified e-box.

Figure 5 CO profile monitored at the specified e-box.

An Web interface was developed for Home health care service for elderly people. This service provides the health risk advice associated indoor climate conditions and cold alarm activation if necessary. Figure 6 illustrates the initial ‘log-in’ page of the Web-base service. Once a user is authorised to log-in the personal Web site, the details of the user’s information such as name, the e-box ID and address are queried and then displayed in the title section of the page as shown at the top of Figure 7.

While the indoor temperature and humidity monitored in real-time base are displayed in this Web page, the risk detection watcher running on the EnTrak server system operates the cold alarm system regardless of the user interface. The cold alarm is activated by the on-line watcher system if the temperature profile remains below a certain level and a certain period. The user can also make appropriate arrangements at emergency situation via the Web interface. Meanwhile, based on the monitored data, health risk associated with mould can be analysed, and the results are presented instantly along with some comments corresponding to the results. This analysis module is simply triggered by clicking the ‘mould analysis’ button. Figure 8 shows an example of the result of the mould analysis at the indoor climate condition of 25 ‘C and 78 %.

Figure 6 Home energy and Health Care Service for Elderly people.

Figure 7 Indoor climate profile and cold alarm activator.

Figure 8 Mould analysis and health advice service.