Two-piece RFID Device for Tolling Application


LSCM’s UHF RFID Detachable Tag and Traffic Antenna Technologies have been adopted in the Government's new tolling system (HKeToll) to facilitate free flow tolling for smart traffic management.

  • Two-piece RFID Device for Tolling Application
Research completion
Commercialisation opportunities
Technology licensing
Problem addressed

Hong Kong is a densely populated city with scarce land resources. Owing to limited road space, the Government can hardly resolve the traffic congestion problem solely by the continuous construction of roads to cope with the ever-increasing traffic demand.

  • The system adopts dedicated short-range communication (DSRC) as the core technology with in-vehicle unit (IVU) as low power RF application. The DSRC system is based on an interchange of information between roadside readers.
  • The unique identity of the driver’s tolling account is kept in the standalone RFID card with a short-read range of around 3cm. Once the card is put into the card slot, the amplifying antenna can extend the read range to more than 6m.
  • An innovative curved antenna that can be installed on gantries was developed. The customized antenna is small yet capable of maintaining adequate beam width control for the electronic tolling applications.
Key impact
  • It helps to disseminate the traffic information to the public, facilitate traffic management through application of information technology, and provide support for the traffic enforcement.
  • It supports the Smart City Blueprint for Hong Kong with "Smart Mobility" approach.
  • Silver Medal in the 48th International Exhibition of Inventions of Geneva
  • Free flow tolling for commercial vehicle
  • Car parking
  • Rental vehicle management
  • Electronic road pricing system


  • US 18/193,989
  • CN 2023 1034 0327.2
  • HK 3202 3070 889.5
Logistics and Supply Chain MultiTech R&D Centre (LSCM)

Logistics and Supply Chain MultiTech R&D Centre (LSCM) was founded in 2006, with funding from the Innovation and Technology Fund of The Government of the Hong Kong SAR, and is co-hosted by the University of Hong Kong, the Chinese University of Hong Kong and the Hong Kong University of Science and Technology. It aims to strengthen the local logistics sector and related industries by providing a one-stop resource for applied research and technology transfer, and to reinforce cooperation between the industry and research institutes to bring about meaningful and significant impact on the industry and the community. 

LSCM serves the industry by initiating research projects, contract research, as well as providing business matching opportunities, technology transfer and intellectual property commercialisation. LSCM initiates technology and knowledge transfer to the marketplace to promote industrial digitalisation, facilitate technology advancement and strengthen Hong Kong’s position as a leading logistics and commercial hub.