Design Of Field Operations Locomotive Condition Monitoring System Based On BSD And GPS Integrated Positioning

"Precision agriculture" is the future development of modern agriculture. It is totransform the traditional agriculture with information technology and automation technology,which could improve agricultural productivity and reduce material and human input inagricultural production. With the satellite positioning, sensor detection, geographic informationand other high-tech combined with agriculture mechanization， the position and workingconditions of field operations locomotive could be remote monitored, hence not only theperformance and efficiency of agricultural machinery would greatly improved, the dependent onoperators would be reduced at the same time. In order to achieve the data of field locomotivesquickly and accurately, an agricultural information collection system was designed whichcombined locomotive positioning, working condition monitoring, area measurement andenvironmental information detection.The monitoring system consists of end device to the locomotive and information collectionsoftware install on the computer. The running state and working condition of locomotives couldbe collected by the end device, and then display on the screen and translate to the host computerwirelessly. The BDS/GPS dual-mode receiver G-Mouse is used to obtain the position oflocomotives. The XBee module that based on ZigBee standard which has the function of remotetransmission and ad hoc network was selected. STM32F103RBT6was used as the corecontroller. The screen with260000color and resolution of320*240TFT_LCD was selected asthe monitor.1-wire bus sensor DHT11was selected to detect the temperature and humidity of theenvironment. The oil and water temperature of the engine are monitored by DS18B20. GTS-211was selected to measurement the speed of the engine. The driver could set the agriculturalmachinery working width and the system can calculate the working area combine with the speed.Environment temperature and humidity, position, running state, working condition of thelocomotive and the oil and water temperature of the engine could display on the TFT_LCD. Theinformation can also upload to the host computer by XBee module. The host computer softwarewas written by C#4.0. It controls an XBee module to send inquiry instructions to end devices.The information from end devices could displayed on the screen and store in Access database.Users can modify the basic information of locomotive through the host computer software. Userscan also see the current operating conditions of field operation locomotive, view the history andexport the history data into Excel. This article has conducted the thorough research to the multi satellite system combinedpositioning theory and XBee network technology. Research results are applied to the systemdesign. The satellite positioning becomes more accurate and reliable. The wireless networkbecomes more flexible and stable. The collection of locomotive information can be displayed,stored and queried which can provide reference data for agricultural production and management.The system can provide a reliable data basis for field locomotives intelligent management andscheduling.