设施猪场生猪体温红外巡检系统设计与试验

针对规模化生猪养殖过程中难以及时获取猪只体温的问题,设计了基于红外技术的生猪体温巡检系统,以实现对设施猪场生猪体温的快速监测。硬件包括红外移动采集装置、系统控制装置和电源3部分。其中红外移动采集装置包括滑轨、移动小车、红外热像仪和保护壳;系统控制装置包括惠普MINI微型计算机、XP2-18R/RT型整体式控制器和DM542型数字式步进电机驱动器;电源包括电缆线和电缆滑车。控制系统集成红外图像的采集、存储控制,移动小车的运行控制及与远程服务器的数据通信等功能。在限位栏猪舍安装该装备,并进行了28 d的测试试验,试验表明:系统工作稳定,巡检过程中红外图像平均缺失率为1. 12%,能有效采集限位栏生猪红外图像。试验选择耳根区域作为生猪体温敏感区域,通过统计得到猪只耳根区域周期性巡检精度在90%以上,能有效监测猪只耳根区域温度情况。试验连续5 d对3～6号猪只耳根区域温度最大值进行监测,并统计其日均值,通过分析验证了温度数值的科学性,可为养殖人员提供有效的监测信息,对生猪的健康监测和疫情防治具有重要意义。

Design and Experiment of Infrared Inspection System for Pig Body Temperature in Facility Farm

Considering the difficulties of obtaining the body temperature of pigs timely in the process of large-scale pig breeding, an inspection system based on infrared technology was designed to realize the rapid monitoring of body temperature in the facility pig farm. The hardware of system included an infrared mobile acquisition device, a system control device, and the power supply device. The infrared mobile acquisition device was comprised of a slide rail, a mobile car, an infrared thermal imager, and a protective shell;the system control device was comprised of a HP MINI microcomputer, a XP2-18R/RT integrated controller, and a DM542 digital motor driver;the power supply included cables and cable blocks. The control system of equipment integrated infrared image acquisition, storage control, mobile car operation control and data communication with remote server, etc. The equipment was deployed and experimented in the limit bar pig farm for 28days. The experiment showed that the system worked stably and the average loss rate of infrared images in the inspection process was 1.12%, which could effectively collect the infrared images of pigs in the limit bar pig farm. The ear roots area was selected as the temperature sensitive area in the experiment. According to the statistics, the periodic inspection accuracy of the ear roots area of pigs was over 90%, which can effectively monitor the temperature of the ear roots area of pigs. The experiment also monitored the maximum temperature of the ear roots region of No.3 to No.6 pigs for five consecutive days and counted their daily mean value. The analysis verified the scientific value of temperature, which could provide effective monitoring information for the breeding personnel, and was of great significance for the health monitoring and epidemic prevention of pigs in the field of pig breeding.