Research And Implementation On A New Device Of Hive Temperature Monitoring

Temperature detection techniques can be applied in all walks of life, temperature detection technologies have played a key role in whether industrial or agricultural facilities control,even more to explore the temperature of the biological laws of nature. Bees hive storage presents great diversity, including eggs, larvae, pollen, etc., while others hive may be empty, which leads to hive temperature showing some differences. Bees in the winter time will gather together to form a spherical group, the radiating area of the bee group is reduced, and the internal and external spheres bees will continue to swap positions, maintaining a substantially constant hive at a suitable temperature; when the temperature is higher, bees almost throughout the entire honeycomb. Dynamic Distribution of this group is based on a series of hive temperature data, so how to accurately and effectively detect the hive temperature in the original ecological environment, is have a important study significance to the hive storage distribution and potential distribution of bees group.Earlier methods of temperature measurement applications beehive is inserted directly into the mercury thermometer method, this detection method can not only get the minimum and maximum temperature values, but also has a certain risk. Subsequently intelligent temperature sensors, infrared thermometers and other temperature-sensing technology is used in the hive, but the sensor probe is too bigger, which would destroy the original ecological environment of bees, and detection points is few, it may often detect the temperature of the hive at a position, It shows the temperature distribution in space to people, the group situation information is difficult to be collected, and these methods can not be monitored to individual hive temperature.In this paper, combine beekeeping knowledge, and use modern beekeeping equipment, to study a new device on the monitor temperature of all honeycomb. According to septum have a hexagonal symmetry structure, make small negative temperature coefficient thermistor (single-ended glass package only 1.3mm) placed in the diamond center of the regional monitoring nest hexagon recess in the back room of honeycomb, then use multi-channel switch negative temperature coefficient thermistor to collect hive temperature, and put data collected going to analog to digital conversion and then sent data to the host computer via the serial port, displayed and stored on the PC interface.This paper mainly describes the following aspects:(1) The system architecture of the monitoring device, and introduce various functional modules biological bees to explore the feasibility of monitoring devices;(2) The NTC output signal thermistor calibration process;(3) STM32 microcontroller as controller core,designed RS232 serial communication based for the next crew and the communication between the host computer;(4) Use STM32 library function version to develop lower computer program and based on MFC widget to study and develop the hive temperature monitoring system in the Visual C++platform;(5) According to actual testing, test case for the use of multi-channel switch 64 negative temperature coefficient thermistor collected 8×8 row hive temperature, and a brief analysis of the actual test results.