How does a pig house environment management system achieve dynamic and coordinated control of multiple indicators such as temperature, humidity, and ammonia?
Publish Time: 2026-01-21
In modern pig farming, the pig house environment can no longer be addressed simply by "opening windows for ventilation and closing windows for insulation." Excessive temperature leads to heat stress in pigs, resulting in decreased feed intake; excessive humidity promotes bacterial growth; and excessive ammonia concentration directly damages the respiratory tract and inhibits growth. However, these environmental factors are interconnected—increasing ventilation can lower the temperature and remove ammonia, but it may introduce damp and cold air; closing ventilation for insulation can cause ammonia accumulation and soaring humidity. Traditional single-parameter control systems often fall into a "whack-a-mole" dilemma: excessive ventilation to lower the temperature results in ammonia accumulation due to airflow turbulence instead of a reduction; or reduced ventilation to control humidity leads to the quiet accumulation of harmful gases. A truly advanced pig house environment management system achieves harmonious co-governance of various environmental indicators through multivariate coupling analysis, dynamic weight allocation of primary and secondary factors, and intelligent execution linkage, ensuring that pigs are always in a truly comfortable and healthy microclimate.The core of the pig house environment management system lies in abandoning the linear thinking of "single-objective priority" and shifting to a control philosophy of "system balance." The system does not respond in isolation to any single excessive parameter, but rather incorporates data such as temperature, humidity, ammonia, carbon dioxide, and even wind speed into a unified algorithm model. For example, when the temperature rises in the summer afternoon, the system will not immediately start the fans at full power. Instead, it will first assess the current humidity and ammonia levels: if the ammonia level is close to the threshold, it will prioritize low-speed continuous ventilation, combined with evaporative cooling pads for moderate evaporative cooling. This avoids causing discomfort to the pigs due to strong airflow and prevents the formation of ammonia dead zones due to sudden strong exhaust causing negative pressure imbalance and uneven air intake. If the humidity is already low, the evaporation rate can be appropriately increased to maintain reasonable humidity while cooling, preventing the air from becoming too dry and irritating the respiratory tract.More importantly, the patented "odor gradient treatment technology" has an intelligent correction mechanism for multiple factors. This technology uses temperature as the primary control factor to set the basic ventilation requirements, but it introduces humidity and ammonia levels in real time as dynamic correction coefficients. When ammonia concentration rises slowly but before an alarm is triggered, the system proactively increases the ventilation frequency slightly. During the rainy season with high humidity, even when temperatures are suitable, ventilation volume is slightly increased to prevent mold growth. Simultaneously, precise control of the air inlet angle and fan speed prevents cold air from directly blowing on the pigs. This "proactive adjustment," rather than a "lagging response," effectively eliminates the trade-off between different parameters, keeping the environment consistently within its optimal balance range.Furthermore, the precise linkage between the frequency converter and the actuators ensures smooth control. Fans, evaporative cooling pads, and heaters no longer have only two states: "on" and "off." Instead, they operate with stepless speed regulation based on comprehensive commands. The system acts like an experienced farmer, knowing how to "gently push and slowly adjust" rather than "suddenly pull and stop"—fine-tuning the airflow resolves minor ammonia accumulation without causing sudden temperature changes. This delicate control rhythm not only improves environmental stability but also significantly reduces energy consumption.Ultimately, the Pig House Environment Management System doesn't pursue the ultimate in any single metric, but rather seeks the "golden intersection" that is most beneficial to pigs amidst complex variables. It understands that temperature, humidity, and air quality are not contradictory, but rather a synergistically optimizable whole. Because in the fundamental logic of scientific farming, the health and growth of pigs are never determined by a single environmental parameter, but rather by the combined effect of all factors. And that silently operating environment management system is the most reliable executor of this holistic wisdom.
