蜂巢温度全覆盖采集系统的设计与实现

为探索蜂巢内温度变化以及蜂巢恒温调控机理,设计了一种蜂巢温度采集系统。该系统由温度采集电路、嵌入式微处理器、Zigbee无线模块及上位机监测终端组成,其中温度传感器采集电路安放于2巢础间,微处理器及传输电路置于蜂箱外。采集电路以负温度系数热敏电阻作为温度传感器,微处理器控制多路切换开关、AD转换器,采用阵列式结构对巢脾各蜂房温度进行全覆盖检测、采集,采用Zigbee无线网络传输数据,利用C语言基于Visual Studio软件平台开发监测终端软件。试验表明:该系统在自然环境下运行稳定,105 s内可获取蜂巢单张巢脾2 880个蜂房温度数据,覆盖巢脾90%区域,获取温度数据与实际温度值误差小于0.5℃。

Design and experiment of the temperature acquisition system for the full beehive

In order to explore the mechanism controlling constant temperature and the evolution rule of temperature in the hive and bee colonies, a new temperature acquisition system is designed to monitor the temperature in the whole beehive. The monitoring system is composed of a temperature acquisition circuit, an embedded microprocessor, a Zigbee module and a host computer monitor terminal. The NTC thermistors are used as the temperature sensors installing between the nest foundation in an array to make a full measurement and collection of hive temperature. The microprocessor is placed out of the hive to control a multiplexer and an A/D converter. The data is then transmitted through the Zigbee wireless network and is saved by the monitoring terminal software developed by using C language on the basis of Visual Studio software platform. The experiment results show that the system was operating normally under the nature environment. The temperature from 2 880 cells of one single hive, more than 90% of which was covered, is obtained within 105 seconds, which is low than 0.5 compared with the actual temperature℃ in the hive.