A wireless temperature control device
A technology of temperature control device and wireless temperature, which is applied in the direction of temperature control by electric method, auxiliary controller with auxiliary heating device, signal transmission system, etc. Large size, cost increase and other problems, to achieve the effect of convenient use and ensure the accuracy of measurement and control
Inactive Publication Date: 2015-08-26
王大庆
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Problems solved by technology
Therefore, there will be certain difficulties in temperature measurement and control of moving bodies.
In addition, when the distance between the temperature measuring element and the control unit is long, the length and resistance value of the connecting line will also be increased
This will increase the cost and increase the temperature measurement error
Method used
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[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0015] In the production process of papermaking industry, paper processing industry, and textile printing and dyeing industry, there is a process of heating and drying products. There is a roller specially used for heating and drying the product on the production line, that is, the drying cylinder, and the surface temperature of the cylinder body needs to be controlled within a certain range. Since the drying cylinder rotates during the production process, it is difficult to measure its surface temperature. At present, the method adopted is to let the temperature-sensing probe (thermocouple, platinum resistance) rub against the surface of the drying cylinder to sense the temperature or to draw the weak temperature-sensing signal from the slip ring. These two methods will cause a large measurement error, thereby affecting the temperature control accurac...
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The invention belongs to the field of temperature control, and discloses a wireless temperature control device, which comprises a wireless temperature sensor, a wireless digital receiver and a temperature controller, wherein the wireless temperature sensor is formed by connecting a temperature sensing element, an A / D (Analog to Digital) converting module and a radiofrequency digital transmitting module in sequence; the wireless digital receiver is formed by connecting a radiofrequency digital receiving module and a microprocessor; the temperature controller is formed by connecting a pulse width modulating circuit and a heating piece control mechanism; the output end of the microprocessor is connected with the pulse width modulating circuit; the wireless temperature sensor is arranged on a movable measuring control object; and the wireless digital receiver and the temperature controller are arranged on a ground control console. Due to the adoption of the device, the temperature of a movable body can be measured and controlled very conveniently, and the measuring and controlling accuracies are ensured.
Description
technical field [0001] The invention belongs to the field of temperature control, and in particular relates to a wireless temperature control device. Background technique [0002] The temperature measuring element of the existing temperature controller must be connected with the control unit by a metal wire (replenishment line), so that the measured power value representing the temperature value can be transmitted to the control unit. Therefore, there will be certain difficulties in temperature measurement and control of moving bodies. In addition, when the distance between the temperature measuring element and the control unit is long, the length and resistance value of the connecting line will also be increased. This will increase the cost and increase the temperature measurement error. Contents of the invention [0003] The present invention aims at the deficiencies in the prior art, and provides a wireless temperature control device, which not only solves the problem...
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IPC IPC(8): G05D23/30G08C17/02
Inventor 王大庆
Owner 王大庆