• WIRELESS SOIL SENSOR PODS FOR LONG-TERM DATA COLLECTION

      Lipina, Jacob; Van Horn, Andrew; Schad, Judah; Kosbar, Kurt; Missouri University of Science and Technology (International Foundation for Telemetering, 2018-11)
      This paper discusses the applications of a wireless telemetry module used to collect remote sensor data used in a teleoperated electric vehicle that competed in the 2018 Mars University Rover Challenge (URC). Remote wireless soil sensor pods, 100 cc in volume, equipped with a 32-bit microcontroller and embedded IEEE 802.11 b/g/n Wi-Fi were distributed at key locations to relay soil moisture and temperature values over a local repeater to a remote base station. Combined with a low power deep sleep mode (1.84 mW), two 2500 mAh lithium-ion polymer batteries, and voltage regulation electronics, such a device could periodically relay telemetry data for many years without recharge. The small size presents the opportunity for large scale production and distribution across exoplanetary surfaces for monitoring soil characteristics over time.
    • WIRING HARNESS CONSTRUCTION AND DATA PROTOCOL SELECTION FOR HIGH NOISE APPLICATIONS

      Schultz, Aaron; Marcellin, Michael; Univ Arizona (International Foundation for Telemetering, 2018-11)
      The main problem with wired data transmission is exposure to electrical noise. In environments with extremely high noise levels, special care needs to be taken in order to accurately send data between two or more devices. In the case of motorsports, extreme noise on any critical data lines can cause engine failure, putting the driver’s safety at risk. The purpose of this paper is to explain effective construction techniques for noise reduction in a wiring harness, as well as to review how certain serial data protocols will handle errors in harsh conditions.