Constant temperature control system applied to full-automatic food safety rapid detector
A technology of food safety and constant temperature control, applied in the control/regulation system, temperature control, non-electric variable control and other directions, can solve the problems of insufficient accuracy, complicated operation, increased time, etc., and achieve the effect of improving measurement accuracy
Inactive Publication Date: 2017-09-15
LANZHOU INST OF ANIMAL SCI & VETERINARY PHARMA OF CAAS
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Problems solved by technology
At present, the traditional constant temperature detection system is not accurate enough in temperature detection, and it is also difficult to control the heating device in food detection. It cannot control the circuit on the temperature control module well, so that the input power of the circuit cannot work. The heating time of the heater is uncontrollable, which increases the time used for heating, and the operation is more complicated
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[0020] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0021] Specifically, such as figure 1 As shown, the constant temperature control system applied to a fully automatic food safety rapid detector, the system includes a microcontroller 1 and a temperature control unit 7, the inside of the microcontroller 1 is provided with a PID controller 3, and the PID controller 3. The incremental PID control algorithm can be used to complete the operation control. Compared with other control algorithms, it is simple and accurate. The output terminal of the PID controller 3 is connected with the temperature control unit 7 through the clock unit 6. The temperature control unit The inside of 7 includes a constant temperature control ...
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The invention discloses a constant temperature control system applied to a full-automatic food safety rapid detector. According to the constant temperature control system applied to the full-automatic food safety rapid detector, a microcontroller is arranged, temperature reading setting is performed by using a key controller, the required temperature value can be set by using the keys for the temperature demand required in detection, a temperature data detection module performs temperature measurement by using a platinum resistor PT100, and the voltage signals acquired in the circuit are converted into digital signals through a digital-to-analog converter having the 24-bit precision to be transmitted to the microcontroller so that measurement precision in temperature detection can be enhanced.
Description
technical field [0001] The invention relates to the technical field of food temperature control, in particular to a constant temperature control system applied to a fully automatic food safety rapid detector. Background technique [0002] With the development of the economy and the advancement of science and technology, people have higher and higher requirements for the quality of healthy life, especially in food manufacturing. In the process of food production, it is generally required that the tested samples and reagents only react at a specific temperature. Reliable test results can be obtained, and it is possible to isolate the influence of other bacteria at a specific temperature. At present, the traditional constant temperature detection system is not accurate enough in temperature detection, and it is also difficult to control the heating device in food detection. It cannot control the circuit on the temperature control module well, so that the input power of the circ...
Claims
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IPC IPC(8): G05D23/24
CPCG05D23/24
Inventor 席斌高雅琴肖玉萍郭天芬李维红杜天庆杨晓玲熊琳
Owner LANZHOU INST OF ANIMAL SCI & VETERINARY PHARMA OF CAAS