With aid of the GWIN, the EMSD makes use of various types of LoRa sensing devices to conduct remote monitoring and control of various equipment as well as to support smart city management. Below are a few examples of GWIN application.

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1. Remote Monitoring and Control
   The EMSD deploy the LoRa sensing devices to monitor the operation status of typical E&M equipment which includes air-conditioning systems of government buildings, filtration pump systems of swimming pools, ventilation fans in public transport interchanges, irrigation pumps at sports grounds, etc. Fault signals from the equipment under monitoring are promptly sent to maintenance staff for quick follow-up actions. The data so collected by the LoRa sensors can also be processed using data analytics and artificial intelligence tools to conduct performance trending of equipment. With the application of the GWIN, we can monitor the E&M facilities on a near real-time basis to enhance operation reliability, effectiveness and efficiency which is crucial to support various smart city initiatives.
    

2. Smart Drainage System
   Water level sensors have been installed in over 50 sites to monitor changes in river/sea water level for speedy alert of potential flooding risks. The system was in operation in 2020 and collected water level readings in a prompt manner during the passage of typhoons through connection with the GWIN network.
    

3. Provision of Parking Vacancy Information in Rural Areas
   In recent years, parking vacancy information system has gained its popularity in Hong Kong. However, due to power and network infrastructure unavailability, parking vacancy information system in rural area could not be implemented easily. We have collaborated with relevant government departments to install wireless sensors in suitable non-metered on-street parking spaces in rural areas, so as to provide real-time information to facilitate the motorists for finding vacant parking spaces in those locations.
    

4. Wetland Park Nature Reserve Monitoring Program
   In the ecological environment, it is urgent for us to protect locations and species. While promoting education and conservation work across the territory, we are utilizing the GWIN dedicated wireless sensor network in conjunction with IoT sensor applications to effectively monitor real-time water levels, water quality, water buffalo tracking, species, quantities, locations, crowd counting, etc. In addition, data analysis and real-time remote notification are carried out to continue to work together for wildlife protection and wetland conservation.
    

5. Smart Toilet Pilot Programme
   The general public raises concern from time to time about the availability, hygienic conditions and comfortability of public toilets in the territory. With the use of the GWIN sensing devices, “smart toilets” collect useful information and data such that toilet management and attendants can better plan, adjust and manage the cleansing and housekeeping work as well as the maintenance of facilities and equipment. On the other hand, the system will also provide members of the public with useful information on the occupancy status of nearby toilets and the locations of toilets in their proximity.
    

6. Public Housing Estate Electrical Equipment Management Pilot Program
   We have collaborated with the other government departments to install GWIN wireless base stations and sensors in over ten public housing estates to monitor the operational status of general electrical equipment. This includes installing water immersion sensors at the bottom of elevator shafts, power anomaly sensors in electrical rooms, and fuel capacity sensors in backup generator rooms. Fault signals from the monitored equipment can be quickly transmitted to maintenance personnel for prompt follow-up actions. In addition, we have also installed rodent control sensors in selected wet markets to collect real-time data. Through trend data analysis, cleaning personnel can more effectively prevent and eliminate rodent infestations