CN102109853A - Gas mass flow rate controller based on double CPUs (central processing units) - Google Patents
Gas mass flow rate controller based on double CPUs (central processing units) Download PDFInfo
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- CN102109853A CN102109853A CN 201010560810 CN201010560810A CN102109853A CN 102109853 A CN102109853 A CN 102109853A CN 201010560810 CN201010560810 CN 201010560810 CN 201010560810 A CN201010560810 A CN 201010560810A CN 102109853 A CN102109853 A CN 102109853A
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Abstract
The invention discloses a gas mass flow rate controller based on double CPUs, which includes a sensor signal processing module, an A/D converter, a valve control circuit module, a first microprocessor, a second microprocessor and so on. The first microprocessor is used for realizing functions like flow rate detection, flow rate display, fault diagnosis and so on; and the second microprocessor is used for performing PID control arithmetic, the output result is used for controlling an electromagnetic valve, and the second microprocessor is also used for realizing functions like communication and so on. The double CPUs finish different works respectively, therefore, the anti-jamming capability is enhanced, and the arithmetic speed is increased.
Description
Technical field
The present invention relates to a kind of gas mass flow amount controller, relate in particular to a kind of gas mass flow amount controller based on two CPU.
Background technology
The gas mass flow amount controller is an element commonly used such as microelectronic, chemical field.
Gas mass flow amount controller of the prior art divides analog-and digital-two types of products, and poor anti jamming capability, the control accuracy of analog flow controller are low; Digital flow controller is based on single microprocessor, and processing speed is slow.
Summary of the invention
The purpose of this invention is to provide the gas mass flow amount controller that a kind of antijamming capability is strong, processing speed is fast based on two CPU.
The objective of the invention is to be achieved through the following technical solutions:
Gas mass flow amount controller based on two CPU of the present invention comprises sensor signal processing module, A/D modular converter, valve controling circuit module, it is characterized in that, also comprises the first microprocessor and second microprocessor;
After the flow signal of described sensor signal processing module output is converted into digital signal to simulating signal through the A/D modular converter, be input to first microprocessor, after first microprocessor carries out signal Processing, digital filtering to the flow signal that receives, carry out flow by display module and show, simultaneously flow signal is flowed to second microprocessor;
After setting signal is digital signal to analog signal conversion through the A/D modular converter, be input to second microprocessor, second microprocessor is provided with pid control module, flow signal and the setting signal that receives carried out pid control algorithm, output to described valve controling circuit module through the result behind the pid control algorithm.
As seen from the above technical solution provided by the invention, the gas mass flow amount controller based on two CPU of the present invention is owing to comprise the first microprocessor and second microprocessor; First microprocessor carries out functions such as flow detection, flow demonstration, fault diagnosis; Second microprocessor carries out pid control algorithm, and the result of output comes control electromagnetic valve.Such two CPU finish different work respectively, and antijamming capability is strengthened, and arithmetic speed is accelerated.
Description of drawings
Fig. 1 is the system chart that the present invention is based on the gas mass flow amount controller of two CPU.
Embodiment
Gas mass flow amount controller based on two CPU of the present invention, its preferable embodiment is:
Comprise sensor signal processing module, A/D modular converter, valve controling circuit module, also comprise the first microprocessor and second microprocessor;
After the flow signal of described sensor signal processing module output is converted into digital signal to simulating signal through the A/D modular converter, be input to first microprocessor, after first microprocessor carries out signal Processing, digital filtering to the flow signal that receives, carry out flow by display module and show, simultaneously flow signal is flowed to second microprocessor;
After setting signal is digital signal to analog signal conversion through the A/D modular converter, be input to second microprocessor, second microprocessor is provided with pid control module, flow signal and the setting signal that receives carried out pid control algorithm, output to described valve controling circuit module through the result behind the pid control algorithm.
Can also comprise fault diagnosis module, the detected fault detection signal of described fault diagnosis module inputs to first microprocessor in real time, when first microprocessor takes place when unusual second microprocessor is given an order, second microprocessor is received and fault is handled after the order and reported to the police.
Described second microprocessor can be provided with communication module, is used for the telecommunication of this controller.
Gas mass flow amount controller based on two CPU of the present invention, first microprocessor carry out functions such as flow detection, flow demonstration, fault diagnosis; Second microprocessor carries out pid control algorithm, and the result of output comes control electromagnetic valve.Such two CPU finish different work respectively, and antijamming capability is strengthened, and arithmetic speed is accelerated.
Wherein:
The sensor signal processing module mainly is that the voltage signal to sensor carries out filtering, amplification.
The function of A/D modular converter is that analog quantitys such as flow, temperature and trouble spot are converted into the treatable digital quantity of microprocessor.
Pid control module is mainly ratio, integration and differential control algolithm, in this way accurate Control Flow.
Fault diagnosis module mainly is the trouble spot that detection system is provided with, and can handle and reports to the police fault when microprocessor takes place when unusual.
The valve controling circuit module mainly is that the signal that pid control algorithm is exported is carried out filtering, amplification, thereby comes control electromagnetic valve.
The principle of work of specific embodiment is as shown in Figure 1:
The flow detecting signal that sensor comes out carries out filtering, amplification through signal conditioning circuit, by the A/D modular converter simulating signal is converted into digital signal, deliver to first microprocessor then, first microprocessor carries out signal Processing, digital filtering etc. to flow signal, carry out flow then and show, simultaneously flow signal is flowed to second microprocessor.
Setting signal is received the A/D modular converter, is analog signal conversion to receive second microprocessor after the digital signal, second microprocessor is realized pid algorithm, carry out control electromagnetic valve after the signal Processing through the output result behind the pid control algorithm, the difference of flow detecting signal and setting signal does not stop to regulate solenoid valve through behind the pid algorithm like this, finally make the flow of output maintain setting value, realized the purpose of accurate Control Flow.
In system, fault detection signal can be set, the real-time detection failure diagnostic signal of first microprocessor meeting, first microprocessor can be given an order to second microprocessor when generation is unusual, second microprocessor is received and fault is handled after the order and reported to the police, and makes The whole control system become more stable.
Second microprocessor is provided with 485 communication modules, has finished the communication of controller and host computer, can the Control Flow controller by host computer.
Gas mass flow amount controller based on two CPU of the present invention has adopted the separately thought of design of data acquisition and control algolithm, makes that antijamming capability strengthens, processing speed is faster, and easily system is optimized and upgrades.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; the function of two CUP does not specifically limit; can adjust the function of two CPU as requested; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (3)
1. the gas mass flow amount controller based on two CPU comprises sensor signal processing module, A/D modular converter, valve controling circuit module, it is characterized in that, also comprises the first microprocessor and second microprocessor;
After the flow signal of described sensor signal processing module output is converted into digital signal to simulating signal through the A/D modular converter, be input to first microprocessor, after first microprocessor carries out signal Processing, digital filtering to the flow signal that receives, carry out flow by display module and show, simultaneously flow signal is flowed to second microprocessor;
After setting signal is digital signal to analog signal conversion through the A/D modular converter, be input to second microprocessor, second microprocessor is provided with pid control module, flow signal and the setting signal that receives carried out pid control algorithm, output to described valve controling circuit module through the result behind the pid control algorithm.
2. the gas mass flow amount controller based on two CPU according to claim 1, it is characterized in that, also comprise fault diagnosis module, the detected fault detection signal of described fault diagnosis module inputs to first microprocessor in real time, when first microprocessor takes place when unusual second microprocessor is given an order, second microprocessor is received and fault is handled after the order and reported to the police.
3. the gas mass flow amount controller based on two CPU according to claim 2 is characterized in that described second microprocessor is provided with communication module, is used for the telecommunication of this controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010560810 CN102109853A (en) | 2010-11-23 | 2010-11-23 | Gas mass flow rate controller based on double CPUs (central processing units) |
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| CN 201010560810 CN102109853A (en) | 2010-11-23 | 2010-11-23 | Gas mass flow rate controller based on double CPUs (central processing units) |
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| CN102109853A true CN102109853A (en) | 2011-06-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841613A (en) * | 2012-08-29 | 2012-12-26 | 兰州理工大学 | Gas concentration control system in gas distribution process |
| CN103197693A (en) * | 2013-04-09 | 2013-07-10 | 安徽省安光环境光学工程技术研究中心有限公司 | Air mass flow rate control device |
| CN104102237A (en) * | 2014-07-08 | 2014-10-15 | 北京七星华创电子股份有限公司 | Regulating valve characteristic optimization method for mass flow controller |
| CN107145096A (en) * | 2017-03-24 | 2017-09-08 | 江苏舒茨测控设备股份有限公司 | Dual processor sensor signal processing module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059363A (en) * | 2007-03-29 | 2007-10-24 | 上海大学 | Intelligent differential pressure flowmeter inset in industrial Ethernet interface and the measurement method |
| CN201017447Y (en) * | 2007-03-20 | 2008-02-06 | 天津亚旭科技发展有限公司 | GSM remote data transfer control device |
| US20090164050A1 (en) * | 2007-12-21 | 2009-06-25 | Rosemount, Inc. | Diagnostics for mass flow control |
| CN101551675A (en) * | 2008-03-31 | 2009-10-07 | 日立金属株式会社 | Flow controller and test method therefor, and flow control method |
| CN201352319Y (en) * | 2008-12-23 | 2009-11-25 | 北京七星华创电子股份有限公司 | Fast fluid flowrate controlling device |
| CN101719000A (en) * | 2009-11-24 | 2010-06-02 | 北京七星华创电子股份有限公司 | Gas mass flow detection and control system and method |
-
2010
- 2010-11-23 CN CN 201010560810 patent/CN102109853A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017447Y (en) * | 2007-03-20 | 2008-02-06 | 天津亚旭科技发展有限公司 | GSM remote data transfer control device |
| CN101059363A (en) * | 2007-03-29 | 2007-10-24 | 上海大学 | Intelligent differential pressure flowmeter inset in industrial Ethernet interface and the measurement method |
| US20090164050A1 (en) * | 2007-12-21 | 2009-06-25 | Rosemount, Inc. | Diagnostics for mass flow control |
| CN101551675A (en) * | 2008-03-31 | 2009-10-07 | 日立金属株式会社 | Flow controller and test method therefor, and flow control method |
| CN201352319Y (en) * | 2008-12-23 | 2009-11-25 | 北京七星华创电子股份有限公司 | Fast fluid flowrate controlling device |
| CN101719000A (en) * | 2009-11-24 | 2010-06-02 | 北京七星华创电子股份有限公司 | Gas mass flow detection and control system and method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841613A (en) * | 2012-08-29 | 2012-12-26 | 兰州理工大学 | Gas concentration control system in gas distribution process |
| CN103197693A (en) * | 2013-04-09 | 2013-07-10 | 安徽省安光环境光学工程技术研究中心有限公司 | Air mass flow rate control device |
| CN103197693B (en) * | 2013-04-09 | 2016-08-17 | 安徽省安光环境光学工程技术研究中心有限公司 | A kind of MAF controls device |
| CN104102237A (en) * | 2014-07-08 | 2014-10-15 | 北京七星华创电子股份有限公司 | Regulating valve characteristic optimization method for mass flow controller |
| CN104102237B (en) * | 2014-07-08 | 2016-09-07 | 北京七星华创电子股份有限公司 | A kind of regulation valve characteristic optimization method of mass flow controller |
| CN107145096A (en) * | 2017-03-24 | 2017-09-08 | 江苏舒茨测控设备股份有限公司 | Dual processor sensor signal processing module |
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Application publication date: 20110629 |