Precision Agriculture
Glossary
C
CAN-BUS. CAN-Bus is a high-speed, wired data network connection between electronic devices. The hardware/wiring of CAN-Bus networks is generally the same, while the communication protocols can vary depending on the industry where they are used. These networks are used to link multiple sensors to an electronic controller, which can be linked to relays or other devices on a single set of wires. This reduces the amount of wires needed for a system and allows for a cleaner way to connect additional devices as system demands change.
CONTINUOUSLY OPERATING REFERENCE STATION (CORS). A network managed by the U.S. Office of the National Ocean Service (NOAA) to provide GNSS data consisting of carrier phase measurements throughout the United States. CORS eliminates the need for producers to purchase a personal base station, thereby lowering investment costs for RTK applications, and initial research has indicated that CORS can provide RTK-level correction within a 20-mile radius of the station’s location. Because CORS data is transmitted over the internet, there are no line of sight requirements, unlike radio-transmitted signals.
COORDINATE SYSTEM. Used in GPS/GNSS navigational systems to reference locations on Earth. Many coordinate systems are frequently used, including latitude and longitude, Universal Transverse Mercator (UTM), and State Plane coordinate systems.
CROP SENSORS. Optical crop sensors are used to measure and/or quantify crop health or evaluate crop conditions by shining light of specific wavelengths at crop leaves and measuring the type and intensity of the light wavelengths reflected back to the sensors.
