Intelligent temperature control method of pet monitoring cabin based on multi-sensor
A temperature control method and multi-sensor technology, applied in the field of pet medical treatment and control, can solve the problems of longer rise time, lower control accuracy, lower control effect, etc.
Active Publication Date: 2020-11-13
浙江省智能诊疗设备制造业创新中心
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Problems solved by technology
Although the fuzzy PID control algorithm does not have high requirements on the accuracy of the transfer function of the controlled object, it allows the controlled object to change to a certain extent, but when the transfer function changes, the control effect will still be reduced, and the rise time will become longer or the control effect will be reduced. Accuracy reduction and other issues
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Embodiment
[0073] This embodiment is created based on the design of a certain pet guardianship cabin. like figure 2 As shown, the sensors used in the pet monitoring cabin system for collecting data include: temperature sensor (3), humidity sensor (4), pressure sensor (5), body temperature sensor (7) and pulse wave sensor (8), the above sensors collect The data is transmitted to the MCU (1) for centralized analysis and processing.
[0074] According to the temperature and humidity data collected on site, the system identification method is used to identify the figure 1 The transfer functions G11, G12, G21, and G22 in are modeled. The specific operation takes the modeling of G11 as an example, fix the humidifier voltage U2, when the humidity change is stable, make the heater voltage U1 a step signal, record the change of the actual temperature Y1, and obtain the step response according to the change data of Y1 curve, and then the transfer function G11 between the output voltage of the ...
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The invention discloses a pet monitoring bin intelligent temperature control method based on multiple sensors. A temperature control object has the characteristics of nonlinearity, time-varying property and pure lag. A satisfactory control effect is difficult to obtain by using a traditional PID control algorithm, and control is generally performed by using modern control algorithms such as fuzzycontrol and the like. Animals using the pet monitoring bin have different metabolism and heat dissipation due to the difference between the body type and the physiological state, and the temperature control effect is affected. According to the invention, an improved fuzzy PID control algorithm is designed for such application scenarios, the pressure sensor, the pulse wave sensor and the body temperature sensor are used for obtaining physiological parameter information such as the body weight, the heart rate and the body temperature of an animal, PID control parameters are automatically adjusted by combining the physiological parameter information on the basis of fuzzy reasoning, and the control accuracy and robustness are improved.
Description
technical field [0001] The invention relates to a multi-sensor-based intelligent temperature control method for a pet monitoring cabin, which belongs to the field of pet medical treatment and control. Background technique [0002] The pet care room is used to provide pets with a suitable temperature and humidity environment, and precise environmental control is conducive to the rapid recovery of pets. However, temperature and humidity are two variables with strong coupling. If the temperature and humidity are controlled separately, when the control causes the indoor relative humidity to rise, the temperature will decrease at the same time. When the control causes the indoor temperature to rise, it will also cause As the humidity decreases, the two control loops interfere with each other during the control process, so decoupling processing is required first. In addition, the temperature and humidity control object has the characteristics of nonlinearity, time-varying, and pu...
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IPC IPC(8): G05D27/02
CPCG05D27/02
Inventor 叶学松梁波胡轶
Owner 浙江省智能诊疗设备制造业创新中心