Floor Wetness Detection for Smart Public Toilets

I&T Wish Floor Wetness Detection for Smart Public Toilets
(REF : W-0295)
Summary and Challenges Existing technology in detecting wetness of the floor is usually by the sensors with water ropes and small metal contacts. However, there are limitations as the metal contacts can only detect a small area of floor, and the water ropes can usually detect the rims of the walls. It is not possible to place water ropes or small metal contacts to detect the floor wetness of larger area, especially the centre of a space, for example toilet.

We are searching for innovative I&T solution which can help to detect floor wetness in toilet area where it is not suitable for metal contacts and water ropes, for example near/under urinal bowl, centre of the toilet.
Expected Outcome
  1. Solution is preferred to adopt LPWAN technologies (i.e. LoRa, Sigfox, NB-IoT) in the sensing devices.
  2. The sensing devices in this solution shall be designed to detect floor wetness in toilet area where it is not suitable for metal contacts and water ropes, for example near/under urinal bowl, centre of the toilets.
  3. The sensing detection in toilet shall be camera-less technology and non-video based solutions.
  4. The solution shall interface with 3rd party platforms/system for data sharing.
  5. The sensing devices shall be considered to mount securely with sufficient measures to prevent vandalism, ceiling mount, and are able to adapt environment in public toilets.
Expected Trial Duration 9-month duration
Contact Information
I&T Wish Proposer:Electrical and Mechanical Services Department (EMSD)
Contact Person: Mr. Johnny W. M. HUNG
Position:Project Officer/Innovation/11
Tel: 5600 9370
Email: wmhung@emsd.gov.hk
Publish Date 2020-08-06
Closing Date 2020-08-20