In order to satisfy the living requirements of lactation sows in north cold area of China, an automatic monitoring and controlling system of piggery interior environment was developed. By synthetically considering the variables, temperature, humidity, NH3 concentration, and their mutual influences, the system realized the intelligent control for piggery interior environment, in which the mechanical ventilation and hot-water heating systems based on the technologies of configuration, fuzzy control as well as decoupling control were used. The test results showed that the environmental monitoring and controlling system was feasible and applicable, the temperature in pig house could be maintained at the needed level while the relative humidity and ammonia concentration could be controlled within the suitable scope as well.%为解决北方寒冷地区分娩母猪对猪舍环境的要求,该文研究了一种舍内环境监测和控制系统.该系统综合考虑舍内温度、湿度、氨气浓度及其相互影响,利用组态软件、模糊控制技术和解耦控制技术,通过机械通风系统和热水采暖系统实现了舍内环境的智能控制.试验结果表明该系统可行且实用,在保证舍内所需温度基本恒定的条件下(舍内温度控制的最大相对误差为5.5％),也能使舍内相对湿度和氨气浓度保持在适宜范围内.
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