CN104635777A - Precise pneumatic control method for voice coil motor - Google Patents
Precise pneumatic control method for voice coil motor Download PDFInfo
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- CN104635777A CN104635777A CN201410840458.8A CN201410840458A CN104635777A CN 104635777 A CN104635777 A CN 104635777A CN 201410840458 A CN201410840458 A CN 201410840458A CN 104635777 A CN104635777 A CN 104635777A
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- force value
- voice coil
- coil motor
- pressure value
- controlled variable
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Abstract
The invention discloses a precise pneumatic control method for a voice coil motor. The method comprises the following steps: step 1, a system starts operating; step 2, initialization is carried out; step 3, the pressure value of the voice coil motor is collected and is subjected to scale conversion; step 4, the pressure value is compared with a preset pressure value allowance lower limit, if the pressure value is less than the pressure value allowance lower limit, the step 6 is carried out, or else, the step 5 is carried out; step 5, the pressure value is compared with the preset pressure value allowance upper limit, when the pressure value is more than the preset pressure value allowance upper limit, the step 6 is carried out, or else, the step 3 is carried out; step 6, a corresponding controlled quantity is obtained by using the pressure value after scale conversion to query controlled quantity pressure gauge, a corresponding controlled quantity 2 is obtained by setting the pressure query controlled quantity pressure gauge; the controlled quantity is set to be the result of the following formula: the current controlled quantity plus controlled quantity 2 minus controlled quantity 1, so that the pressure control on the voice coil motor is carried out. According to the precise pneumatic control method for the voice coil motor, the gauge-query type correction is carried out on the basis of closed loop control, and the precise control can be realized.
Description
Technical field
The present invention relates to air pressure control method, particularly relate to the accurate air pressure control method of a kind of voice coil motor.
Background technology
Control in application at air pressure instantly, voice coil motor is used accurately to control air pressure, especially accurately to control gaseous tension at the voice coil motor of medical device industry be directly export a controlled quentity controlled variable, carries out open loop realization by the driving part degree of stretching out controlling voice coil motor.This air pressure controls in application, also exist and show bad problem in actual applications, trace it to its cause and can easily analyze out: the inadequate natural endowment had due to opened loop control causes, such environmental effects is such as: variation of ambient temperature, atmospheric pressure change, the impact of these factors is sizes of the influence degree nothing but of outwardness, and will reduce its impact and need to construct reasonable environment to meet, but such cost is high sometimes even cannot accomplishing.In addition, being that performance how well parts all can cause inevitable decay along with time and environmental factor in the middle of application, is also cause the not good reason of control effects.
Summary of the invention
In view of this, the object of the invention is for the deficiencies in the prior art, provide a kind of voice coil motor accurate air pressure control method, this control method carries out correction of tabling look-up again on the basis of closed-loop control, can realize accurate control.
For achieving the above object, the present invention by the following technical solutions:
The accurate air pressure control method of a kind of voice coil motor, the present invention includes following steps:
Step 1, system brings into operation;
Step 2, carries out initialization;
Step 3, gathers the force value of voice coil motor, and carries out force value scale transformation;
Step 4, compares force value and the force value franchise lower limit preset, when performing step 6 in limited time under force value < force value franchise; Step 5 is performed in limited time under force value is not less than force value franchise;
Step 5, compares force value and the force value high tolerance preset, and performs step 6, otherwise perform step 3 when the force value high tolerance that force value > presets;
Step 6, corresponding controlled quentity controlled variable 1 is obtained by the force value inquiry controlled quentity controlled variable-tensimeter after scale transformation, inquire about controlled quentity controlled variable-tensimeter by set pressure and obtain corresponding controlled quentity controlled variable 2, setup control amount=current controlled quentity controlled variable+controlled quentity controlled variable 2-controlled quentity controlled variable 1, carry out the Stress control of voice coil motor, then return step 3.
The invention has the beneficial effects as follows:
The present invention is directed to voice coil motor in the prior art accurately control an air pressure employing direct output controlled quentity controlled variable and perform poor in the application of opened loop control existence, and product component all can cause inevitable negative decay prohlem along with time and environmental factor in the middle of application, the present invention carries out correction of tabling look-up again on the basis of closed-loop control, when the force value collected is outside the force value tolerance preset, carry out correction of tabling look-up, obtain the setup control amount of the pressure of revised voice coil motor.The present invention is under the prerequisite ensureing voice coil motor accurate controlled pressure, and low, the easy realization of whole method cost, long-time stability are good.
Accompanying drawing explanation
Fig. 1 is control flow chart of the present invention.
Fig. 2 is controlled quentity controlled variable of the present invention-manometric example.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the present invention includes following steps:
Step 1, system brings into operation;
Step 2, carries out initialization; Be initialized as system cloud gray model set up necessary environment and only carry out once;
Step 3, gathers the force value of voice coil motor and carries out force value scale transformation;
Step 4, compares force value and the force value franchise lower limit preset, when performing step 6 in limited time under force value < force value franchise; Step 5 is performed in limited time under force value is not less than force value franchise;
Step 5, compares force value and the force value high tolerance preset, and performs step 6, otherwise perform step 3 when the force value high tolerance that force value > presets;
Step 6, corresponding controlled quentity controlled variable 1 is obtained by the force value inquiry controlled quentity controlled variable-tensimeter after scale transformation, inquire about controlled quentity controlled variable-tensimeter by set pressure (set pressure herein refers to the pressure of the expectation that operator or medical personnel set according to professional knowledge) and obtain corresponding controlled quentity controlled variable 2, (setup control amount refers to the controlled quentity controlled variable of output to setup control amount, this amount is dynamic change in whole process)=current controlled quentity controlled variable+controlled quentity controlled variable 2-controlled quentity controlled variable 1, obtain the setup control amount of revised voice coil motor pressure, carry out the Stress control of voice coil motor.Then return step 3, continue to gather voice coil motor force value.
Step 7, by the setup control amount obtained, controls the pressure of voice coil motor.
Figure 2 shows that controlled quentity controlled variable of the present invention-manometric a kind of example, controlled quentity controlled variable-tensimeter is according to different application required pressures and controlled quentity controlled variable, measures rear specially and be stored in the control module of operation by producer.The left column numerical value of form is control measure certificate, and right columns value is pressure data.
The present invention carries out correction of tabling look-up again on the basis of closed-loop control, compare with the force value franchise preset after scale transformation is carried out to the force value collected, when the force value collected is outside the force value tolerance preset, table look-up according to force value and revise the setup control amount of voice coil motor pressure, obtain the setup control amount of revised voice coil motor pressure.When the force value collected does not exceed default force value tolerance, proceed the collection of force value.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, other amendments that those of ordinary skill in the art make technical scheme of the present invention or equivalently to replace, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (1)
1. the accurate air pressure control method of voice coil motor, is characterized in that: comprise the steps:
Step 1, system brings into operation;
Step 2, carries out initialization;
Step 3, gathers the force value of voice coil motor and carries out force value scale transformation;
Step 4, compares force value and the force value franchise lower limit preset, when performing step 6 in limited time under force value < force value franchise; Step 5 is performed in limited time under force value is not less than force value franchise;
Step 5, compares force value and the force value high tolerance preset, and performs step 6, otherwise perform step 3 when the force value high tolerance that force value > presets;
Step 6, corresponding controlled quentity controlled variable 1 is obtained by the force value inquiry controlled quentity controlled variable-tensimeter after scale transformation, inquire about controlled quentity controlled variable-tensimeter by set pressure and obtain corresponding controlled quentity controlled variable 2, setup control amount=current controlled quentity controlled variable+controlled quentity controlled variable 2-controlled quentity controlled variable 1, carry out the Stress control of voice coil motor, then return step 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410840458.8A CN104635777A (en) | 2014-12-30 | 2014-12-30 | Precise pneumatic control method for voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410840458.8A CN104635777A (en) | 2014-12-30 | 2014-12-30 | Precise pneumatic control method for voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104635777A true CN104635777A (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410840458.8A Pending CN104635777A (en) | 2014-12-30 | 2014-12-30 | Precise pneumatic control method for voice coil motor |
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| CN (1) | CN104635777A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0257355A2 (en) * | 1986-08-27 | 1988-03-02 | Drägerwerk Aktiengesellschaft | Pressure control for a breathing apparatus |
| CN101169663A (en) * | 2007-11-02 | 2008-04-30 | 上海市基础工程公司 | Pneumatic caisson air pressure automatic regulation system |
| GB2452776A (en) * | 2007-09-17 | 2009-03-18 | Internat Patents Inc | Method for monitoring an airway device such as an endotrachael tube |
| CN101757707A (en) * | 2008-12-08 | 2010-06-30 | 北京谊安医疗系统股份有限公司 | Method for controlling end-expiratory pressure and ventilator using same |
| CN103920214A (en) * | 2014-04-28 | 2014-07-16 | 深圳市帝迈生物技术有限公司 | Breathing machine and breathing pressure regulating control system and regulating control method thereof |
| CN103984277A (en) * | 2014-05-26 | 2014-08-13 | 保定迈卓医疗器械有限公司 | Monitoring and controlling system of full-digital oxygenerator |
-
2014
- 2014-12-30 CN CN201410840458.8A patent/CN104635777A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0257355A2 (en) * | 1986-08-27 | 1988-03-02 | Drägerwerk Aktiengesellschaft | Pressure control for a breathing apparatus |
| GB2452776A (en) * | 2007-09-17 | 2009-03-18 | Internat Patents Inc | Method for monitoring an airway device such as an endotrachael tube |
| CN101169663A (en) * | 2007-11-02 | 2008-04-30 | 上海市基础工程公司 | Pneumatic caisson air pressure automatic regulation system |
| CN101757707A (en) * | 2008-12-08 | 2010-06-30 | 北京谊安医疗系统股份有限公司 | Method for controlling end-expiratory pressure and ventilator using same |
| CN103920214A (en) * | 2014-04-28 | 2014-07-16 | 深圳市帝迈生物技术有限公司 | Breathing machine and breathing pressure regulating control system and regulating control method thereof |
| CN103984277A (en) * | 2014-05-26 | 2014-08-13 | 保定迈卓医疗器械有限公司 | Monitoring and controlling system of full-digital oxygenerator |
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Application publication date: 20150520 |
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| RJ01 | Rejection of invention patent application after publication |