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    A Design and Implementation of an Emergency Message Beacon System Using APRS Protocol
    (2020-06-01)
    Hongyim, Nimit
    ;
    Watanachaturaporn, Pakorn
    A design and implementation of an Emergency Message Beacon System (EMBS) using the Automatic Position Reporting System (APRS) protocol is presented in this paper. The EMBS benefits from widely distributed radio network where modern wireless network infrastructure is unavailable such as on open seas or in the middle of jungle. The main concept of the design is that the system an immediate beacon containing current location is transmitted when activates the unit and automatically sends interval beacons to report location, system status, and an instant message. The unit works with either an existing or impromptu APRS ad-hoc networks. The system is designed to transmit low RF power and expected a minimum coverage of at least two kilometers in radius, which is the worst situation case of Line of Sight (LOS) communication. The experimental result shows that the unit can establish radio connection to another station at a range of 2.1 kms. Link budget analysis is theoretically validated the communication.
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    Designing and Implementation Exploration Vehicle Remote Controller Using APRS Protocol
    (2018-08-21)
    Hongyim, Nimit
    ;
    Mithata, Somsak
    The main purposed of this research paper was for implementation of APRS (Automatic Position Report System) Protocol in use with remote controller for controlling Exploration Vehicle where cannot be reached by the conventional wireless network. The research experiment expected result on success communicate between point to point distances over 10Km.
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    Building Automatic Packet Report System to report position and radiation data for autonomous robot in the disaster area
    (2015-12-23)
    Chaiyasoonthorn, Sawatsakorn
    ;
    Hongyim, Nimit
    ;
    Mitatha, Somsak
    This paper purposed to implement long range data communication by using APRS protocol to send location with Radiation measuring of Geiger Counter system, conceptual that automatically collects data and send the entries packet to the internet stream and be able to pinpoint the location of the Autonomous Robot (while deploy around the radiation disaster area) via Online Maps, the main goal, expected to able to establish long distance data communication network between APRS Robot and Internet Gateway(I-Gate) approx radius of 10 Kilometers.