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High precision pid temperature controller and temperature control method based on time service

A temperature control method and temperature controller technology, applied in the direction of temperature control, controllers with specific characteristics, electric controllers, etc., can solve the problems of clock influence, deviation in error signal calculation, and reduction of clock accuracy, so as to correct the error. , High-precision PID temperature control, improve the effect of the calculation process

Active Publication Date: 2021-04-06
GUANGZHOU JIKE ELECTRIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the temperature of the operating environment deviates from the optimum operating temperature, the timing of the clock will be too fast or too slow, reducing the accuracy of the clock, causing deviations in the acquisition of error signals and the calculation of control signals, thus affecting the temperature effect of the temperature controller
[0010] However, the application occasions of PID temperature controllers are all in the environment of high temperature, low temperature or frequent large temperature difference conversion for a long time. Under such harsh conditions, even if heat insulation materials are used on the PID temperature controller, it is difficult to avoid PID temperature. The clock in the controller is affected
In the case of long-term harsh application conditions, the deviation of the clock will accumulate, making the control effect of the PID temperature controller worse and worse

Method used

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  • High precision pid temperature controller and temperature control method based on time service
  • High precision pid temperature controller and temperature control method based on time service
  • High precision pid temperature controller and temperature control method based on time service

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] refer to figure 1 , a high-precision PID temperature controller based on radio wave timing, including a temperature detection module, a main processor and a control module, the main processor is driven by a clock signal; the temperature detection module is used to detect temperature and generate a detection signal; the The main processor is used to process the detection signal to generate an error signal, and execute the PID algorithm to process the error signal to generate a temperature control signal, and the control module is connected to the peripheral device and drives the peripheral device according to the temperature control signal to realize temperature control. Control; the high-precision PID temperature controller based on radio wave timing in this embodiment also includes:

[0071] The receiving antenna is used to receive the long-wave signal carrying the timing information; the long-wave signal is sent by the timing center;

[0072] A preamplifier for pream...

Embodiment 2

[0086] A high-precision PID temperature control method based on radio wave timing, comprising the following steps:

[0087] receiving the long-wave signal carrying the timing information; the long-wave signal is sent by the timing center;

[0088] Process the long-wave signal to obtain timing information; the processing includes pre-amplification, tuning amplification, automatic gain, filtering, demodulation and format conversion;

[0089] Read the timing information in real time according to the preset frequency, and adjust the clock to be synchronized with the read timing information;

[0090] Execute PID algorithm according to the adjusted clock signal, so as to realize PID temperature control.

[0091] Further as a preferred embodiment, the high-precision PID temperature control method of this embodiment also includes the following steps:

[0092] Continuous search for timing information;

[0093] When the timing information is not searched after the preset time period,...

Embodiment 3

[0097] refer to figure 2 , a high-precision PID temperature controller based on Internet timing, including a temperature detection module, a main processor and a control module, the main processor is driven by a clock signal to run; the temperature detection module is used to detect temperature and generate a detection signal; the The main processor is used to process the detection signal to generate an error signal, and execute the PID algorithm to process the error signal to generate a temperature control signal, and the control module is connected to the peripheral device and drives the peripheral device according to the temperature control signal to realize temperature control. Control; present embodiment is based on the high precision PID temperature controller of Internet time service and also includes:

[0098] The Internet module is used to access the Internet; the main processor accesses the Internet through the Internet module;

[0099] A memory for storing at leas...

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PUM

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Abstract

The invention discloses a high-precision PID temperature controller and a temperature control method based on time service, including a high-precision PID temperature controller based on radio wave time service and a corresponding temperature control method, a high-precision PID temperature controller based on Internet time service, and a GPS-based time service High-precision PID temperature controller and corresponding temperature control method. The invention obtains the timing information released by the timing center in real time through radio waves, the Internet and GPS signals, etc., and then synchronizes the local clock of the PID temperature controller with the timing information, which can automatically correct the error of the local clock, thereby improving the calculation of the PID algorithm Process, to achieve high-precision PID temperature control. The invention is widely used in the technical field of temperature control.

Description

technical field [0001] The invention relates to the technical field of temperature control, in particular to a timing-based high-precision PID temperature controller and a control method. Background technique [0002] Explanation of terms: [0003] Radio wave timing: a technology that adjusts the local clock by receiving long-wave signals carrying timing information and analyzing the timing information from them. Long-wave signals are generally transmitted by timing centers or observatories. Many countries in the world have timing centers capable of transmitting long-wave signals. Some clocks on the market use radio time service to automatically adjust the time. [0004] GPS timing: A technology that adjusts the local clock by receiving GPS signals and parsing the timing information from them. GPS timing technology is used in civilian technology such as mobile devices and military technology. [0005] Internet time service: A technology that obtains time service informat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D23/24G05B11/42
CPCG05B11/42G05D23/1919G05D23/24
Inventor 肖记友
Owner GUANGZHOU JIKE ELECTRIC EQUIP