Prototype Hierarchical UAS Traffic Management System in Taiwan

Chin E. Lin, Tsung Pao Chen, Pei Chi Shao, Ying Chih Lai, Tzung Cheng Chen, Yun Chao Yeh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)


A prototype hierarchical UAV Traffic Management (UTM) system is designed and constructed in Taiwan for UAV flight surveillance. The UTM system is proposed for UAV performance below and above 400 feet based on CAA regulations. A general ADS-B Like communication infrastructure adopting multiple communication devices is designed and tested for wide coverage considering sub-urban and remote areas. Based on the UAV Specification Management System (SMS), the hierarchical UTM will accept UAV flight applications by qualification verification of pilot and UAV registrations, and proceed to check the flight plan. One of the ADS-B like communication choice shall be selected and equipped on airborne with pilot's mobile phone being pre-test before flight approval. A "UTM Cloud" is constructed for data exchange and accessing. Flight surveillance data are reported into the Cloud with limited authorization to access by simple encryption. The UTM Center establishes parallel computer system with multi-window to display all UAVs in flight operation. UTM-based Detect and avoid (DAA) is activated by calculating the time to conflict (TTC) when two UAVs are approaching into the same airspace. Traffic alerts to pilots via personal mobile phones will be sent by voice calls from UTM controller for avoidance. Since the proposed ADS-B Like communication can cover wider range, the Regional UTM and National UTM are integrated in one center during the initial operations while UAV traffic density is still low. The prototype UTM is tested and demonstrated under hierarchical architecture to assure UAV flight safety.

Original languageEnglish
Title of host publicationICNS 2019 - 2019 Integrated Communications, Navigation and Surveillance Conference
Subtitle of host publicationEnabling Future Flight through Evolving ICNS Technologies
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728118932
Publication statusPublished - 2019 Apr
Event2019 Integrated Communications, Navigation and Surveillance Conference, ICNS 2019 - Herndon, United States
Duration: 2019 Apr 92019 Apr 11

Publication series

NameIntegrated Communications, Navigation and Surveillance Conference, ICNS
ISSN (Print)2155-4943
ISSN (Electronic)2155-4951


Conference2019 Integrated Communications, Navigation and Surveillance Conference, ICNS 2019
CountryUnited States

All Science Journal Classification (ASJC) codes

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition
  • Human-Computer Interaction

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