Abstract:  Sow feeding is a very important part of pig breeding. In order to improve the litter rate of sows, an intelligent sow feeding control system was designed. The design of the system was based on embedded Linux, and the hardware equipment included Exynos4412 motherboard, peripheral control circuit integrated interface board, sensors, and actuators, which were responsible for information collection of sows, timing, quantitative feeding and launching, and control of the number of pigs in the device. The software was mainly composed of drivers and applications working together to keep the feeding logic running normally. The server was built in the cloud, and the application layer completed realtime data synchronization with the background through calling SQLiteAPI to achieve fine feeding. The experimental results showed that the discharge error of the control system was less than 3.6%, and the discharge error was less than 3.75%. It could monitor the temperature signal of pigs in realtime, and the error of repeated temperature measurement was ±0.2 ℃, which is beneficial to the management of sow health.

Key words:  feeding of sows, intelligent control, Linux, drive circuit

摘要： 母猪饲喂是生猪养殖中极为重要的一部分,为提高母猪产仔率,设计一种智能化母猪饲喂控制系统,该系统基于嵌入式Linux,硬件设备包括Exynos4412母板、外围控制电路集成接口板以及传感器和执行机构,负责对母猪进行信息采集、定时定量下料下水并控制装置中猪的数量。软件主要由驱动程序与应用程序协同工作保持饲喂逻辑正常运行,服务器建立在云端,应用层通过调用SQlite-API完成与后台的实时数据同步,实现精细化饲喂。试验结果表明:控制系统下料误差小于3.6%,下水误差小于3.75%;能够实时监测猪只的体温信号,重复测温误差为±0.2℃,利于饲养员对母猪健康的管理。

关键词: 母猪饲喂, 智能控制, Linux, 驱动电路