CN205304760U - ON -OFF control circuit based on deviation detects - Google Patents
ON -OFF control circuit based on deviation detects Download PDFInfo
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- CN205304760U CN205304760U CN201521027269.5U CN201521027269U CN205304760U CN 205304760 U CN205304760 U CN 205304760U CN 201521027269 U CN201521027269 U CN 201521027269U CN 205304760 U CN205304760 U CN 205304760U
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Abstract
The utility model belongs to the technical field of weak current control, a ON -OFF control circuit based on deviation detects is disclosed, include: one -level relatively module, second grade compares module and switch module, settlement signal and measuring -signal are connected respectively to the one -level relatively stream input end of module, the output with a second grade relatively input of module links to each other, second grade relatively another input of module is connected threshold value signal and is linked to each other, the output with the control end of switch module links to each other, the input of the switch module VCC that connects, control object is connected through control port portA to the output, wherein, set for the signal for being controlled target signal, the be controlled signal of measuring -signal for actually recording, the anti interfering signal of threshold value signal for setting up gets rid of the disturbing signal. The utility model provides a control circuit, it is low to solve terminal direct control structural reliability, poor stability, problem with high costs.
Description
Technical field
The utility model relates to vulnerabilities scan technical field, in particular to a kind of on-off control circuit based on separate-blas estimation.
Background technology
There is a large amount of Controlling System based on separate-blas estimation in industry automatic control, the opening controlling mechanism of such as valve is exactly open and close state and the maintaining condition of the detection by utilizing the deviation value between valve opening feedback and valve opening set(ting)value to control valve; For another example the less demanding application scenario of temperature fluctuation range is also had the application of this kind of control mode.
In prior art, field controller is usually adopted to realize control and switching process, particularly widespread use in vulnerabilities scan scene.
But being applied in terminal control scene, cost is higher; In complex control structure, a large amount of use controller causes crosstalk quite general, affects stability and the reliability of structure.
Practical novel content
The utility model provides a kind of on-off control circuit based on separate-blas estimation, solves terminal direct control texture reliability in prior art low, and stability is poor, the technical problem that cost is high.
For solving the problems of the technologies described above, the utility model provides a kind of on-off control circuit based on separate-blas estimation, comprising: one-level comparison module, two grades of comparison modules and switch module;
Two input terminuss of described one-level comparison module connect setting signal and measurement signal respectively; Output terminal is connected with an input terminus of described two grades of comparison modules;
Another input terminus connect threshold signal of described two grades of comparison modules is connected, and output terminal is connected with the control end of described switch module;
The input terminus of described switch module connects power supply VCC, and output terminal connects controlled plant by control port PortA;
Wherein, described setting signal is controlled object signal, and described measurement signal is the actual controlled signal recorded; Threshold value signal is the anti-jamming signal arranged, and gets rid of disturbance signal.
Further, described one-level comparison module comprises: the first operational amplifier, and described two grades of comparison modules comprise: the 2nd operational amplifier, and described switch module comprises: the first switching tube;
Two input terminuss of described first operational amplifier connect setting signal and measurement signal respectively; Output terminal is connected with an input terminus of described 2nd operational amplifier;
Another input terminus connect threshold signal of described 2nd operational amplifier is connected, and output terminal is connected with the base stage of described first switching tube;
The collector electrode of described first switching tube connects power supply VCC, and emtting electrode connects controlled plant by control port PortA.
Further, described one-level comparison module comprises: the 3rd operational amplifier, and described two grades of comparison modules comprise: four-operational amplifier, and described switch module comprises: the 2nd switching tube;
The in-phase input end of described first operational amplifier connects setting signal, and inverting input connects measurement signal, and output terminal is connected with the in-phase input end of described 2nd operational amplifier;
The inverting input of described 3rd operational amplifier connects setting signal, and in-phase input end connects measurement signal, and output terminal is connected with the in-phase input end of described four-operational amplifier;
The inverting input connect threshold signal of described 2nd operational amplifier is connected, and output terminal is connected with the base stage of described first switching tube;
The inverting input connect threshold signal of described four-operational amplifier is connected, and output terminal is connected with the base stage of described 2nd switching tube;
The collector electrode of described first switching tube connects power supply VCC, and emtting electrode connects controlled plant by control port PortA;
The collector electrode of described 2nd switching tube connects power supply VCC, and emtting electrode connects controlled plant by control port PortB.
Further, described measurement signal and described setting signal are by transfer resistance ground connection.
A kind of electric control valve, the on-off control circuit based on separate-blas estimation described in employing.
A kind of temperature controller, the described on-off control circuit based on separate-blas estimation.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
1, the on-off control circuit based on separate-blas estimation provided in the embodiment of the present application, adopts the circuit structure of difference operation amplifier, carries out comparing and being translated into switch signal and be sent to next stage circuit of observed value and set(ting)value deviation. By two grades of comparison modules, switch signal is compared with threshold value signal, eliminate the noise signal in circuit and the undesired signal from the external world, avoid false triggering; And export the control signal driving switch module, control controlled plant.
2, the on-off control circuit based on separate-blas estimation provided in the embodiment of the present application, by simple simulation circuit structure, it is achieved the direct control of terminal, anti-interference energy is powerful strong, and stability promotes greatly.
3, the on-off control circuit based on separate-blas estimation provided in the embodiment of the present application, the control signal that two-way is contrary is claimed by the conbined usage of the 3rd operational amplifier, for complicated controlled member, namely the work piece of two kinds of control states is exceeded, tri-state work piece, item two kinds, and even the scene of various control combined signal control, improve its use range in terminal control scene greatly; Easier relative to PLC, reliably, cost is cheaper.
Accompanying drawing explanation
The structural representation of the on-off control circuit based on separate-blas estimation that Fig. 1 provides for the utility model.
Embodiment
The embodiment of the present application, by providing a kind of on-off control circuit based on separate-blas estimation, solves terminal direct control texture reliability in prior art low, and stability is poor, the technical problem that cost is high; Lifting terminal control reliability and structural stability greatly, the technique effect simultaneously reduced costs.
For solving the problems of the technologies described above, the embodiment of the present application provides the general thought of technical scheme as follows:
Based on an on-off control circuit for separate-blas estimation, comprising: one-level comparison module, two grades of comparison modules and switch module;
Two input terminuss of described one-level comparison module connect setting signal and measurement signal respectively; Output terminal is connected with an input terminus of described two grades of comparison modules;
Another input terminus connect threshold signal of described two grades of comparison modules is connected, and output terminal is connected with the control end of described switch module;
The input terminus of described switch module connects power supply VCC, and output terminal connects controlled plant by control port PortA;
Wherein, described setting signal is controlled object signal, and described measurement signal is the actual controlled signal recorded; Threshold value signal is the anti-jamming signal arranged, and gets rid of disturbance signal.
By foregoing it may be seen that adopt one-level comparison module, the circuit structure of difference operation amplifier, carry out comparing and being translated into switch signal and be sent to next stage circuit of observed value and set(ting)value deviation. By two grades of comparison modules, switch signal is compared with threshold value signal, eliminate the noise signal in circuit and the undesired signal from the external world, avoid false triggering; And export the control signal driving switch module, control controlled plant. While realizing reliable control, period becomes circuit structure and also greatly improves structural stability, reduces cost.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete enforcement mode, technique scheme is described in detail, the concrete feature being to be understood that in the utility model embodiment and embodiment is the detailed description to technical scheme, instead of the restriction to technical scheme, when not conflicting, the technology feature in the embodiment of the present application and embodiment can combine mutually.
See Fig. 1, present embodiments provide a kind of on-off control circuit based on separate-blas estimation, comprising: one-level comparison module, two grades of comparison modules and switch module;
Two input terminuss of described one-level comparison module connect setting signal and measurement signal respectively; Output terminal is connected with an input terminus of described two grades of comparison modules;
Another input terminus connect threshold signal of described two grades of comparison modules is connected, and output terminal is connected with the control end of described switch module;
The input terminus of described switch module connects power supply VCC, and output terminal connects controlled plant by control port PortA;
Wherein, described setting signal is controlled object signal, and described measurement signal is the actual controlled signal recorded; Threshold value signal is the anti-jamming signal arranged, and gets rid of disturbance signal.
Embodiment one
Specifically, described one-level comparison module comprises: the first operational amplifier 1, and described two grades of comparison modules comprise: the 2nd operational amplifier 2, and described switch module comprises: the first switching tube 3;
Two input terminuss of described first operational amplifier 1 connect setting signal and measurement signal respectively; Output terminal is connected with an input terminus of described 2nd operational amplifier 2;
Another input terminus connect threshold signal of described 2nd operational amplifier 2 is connected, and output terminal is connected with the base stage of described first switching tube 3;
The collector electrode of described first switching tube 1 connects power supply VCC, and emtting electrode connects controlled plant by control port PortA.
When executivecontrol function, first operational amplifier 1 compares measurement signal and setting signal in real time, obtain control signal and it is sent to described 2nd operational amplifier 2, the undesired signal threshold ratio of whale setting is relatively, show that reliable control signal drives the first switching tube 3 action, control controlled member by control port PortA.
Embodiment two
Above-described embodiment one, can be used for the control of two state control devices operation usually; For three even above devices, control cannot be reached.
The present embodiment is for tri-state and above control device, it is proposed to following scheme.
Arrange in one-level comparison module in the 3rd operational amplifier 4, two grades of comparison modules and four-operational amplifier 5 is set, the 2nd switching tube 6 is set in switch module; Produce one group of contrary control signal, with previous one group of control signal, perform combination control.
Specifically, the in-phase input end of described first operational amplifier 1 connects setting signal, and inverting input connects measurement signal, and output terminal is connected with the in-phase input end of described 2nd operational amplifier 2; Obtain the first control signal.
The inverting input of described 3rd operational amplifier 4 connects setting signal, and in-phase input end connects measurement signal, and output terminal is connected with the in-phase input end of described four-operational amplifier 5; Obtain the 2nd control signal.
The inverting input connect threshold signal of described 2nd operational amplifier 2 is connected, and output terminal is connected with the base stage of described first switching tube 3; What realize the first control signal goes interferenceization.
The inverting input connect threshold signal of described four-operational amplifier 5 is connected, and output terminal is connected with the base stage of described 2nd switching tube 6; What realize the 2nd control signal goes interferenceization.
The collector electrode of described first switching tube connects power supply VCC, and emtting electrode connects controlled plant by control port PortA;
The collector electrode of described 2nd switching tube connects power supply VCC, and emtting electrode connects controlled plant by control port PortB. By the contrary two path control signal combination polymorphic control device of control.
Specifically, it is possible to think and comprise composite state: positive and negative, negative just or 00, one by one, pattern is set according to actual needs.
Further, in order to the stability of enhanced system; Described measurement signal and described setting signal are by transfer resistance ground connection.
Concrete, adopting above-mentioned pilot circuit, it is specifically applied to Valve controlling, temperature controls; The present embodiment additionally provides:
A kind of electric control valve, the on-off control circuit based on separate-blas estimation described in employing.
A kind of temperature controller, the described on-off control circuit based on separate-blas estimation.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
1, the on-off control circuit based on separate-blas estimation provided in the embodiment of the present application, adopts the circuit structure of difference operation amplifier, carries out comparing and being translated into switch signal and be sent to next stage circuit of observed value and set(ting)value deviation. By two grades of comparison modules, switch signal is compared with threshold value signal, eliminate the noise signal in circuit and the undesired signal from the external world, avoid false triggering; And export the control signal driving switch module, control controlled plant.
2, the on-off control circuit based on separate-blas estimation provided in the embodiment of the present application, by simple simulation circuit structure, it is achieved the direct control of terminal, anti-interference energy is powerful strong, and stability promotes greatly.
3, the on-off control circuit based on separate-blas estimation provided in the embodiment of the present application, the control signal that two-way is contrary is claimed by the conbined usage of the 3rd operational amplifier, for complicated controlled member, namely the work piece of two kinds of control states is exceeded, tri-state work piece, item two kinds, and even the scene of various control combined signal control, improve its use range in terminal control scene greatly; Easier relative to PLC, reliably, cost is cheaper.
It should be noted last that, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although the utility model being described in detail with reference to example, it will be understood by those within the art that, the technical solution of the utility model can be modified or equivalent replacement, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (6)
1. the on-off control circuit based on separate-blas estimation, it is characterised in that, comprising: one-level comparison module, two grades of comparison modules and switch module;
Two input terminuss of described one-level comparison module connect setting signal and measurement signal respectively; Output terminal is connected with an input terminus of described two grades of comparison modules;
Another input terminus connect threshold signal of described two grades of comparison modules is connected, and output terminal is connected with the control end of described switch module;
The input terminus of described switch module connects power supply VCC, and output terminal connects controlled plant by control port PortA;
Wherein, described setting signal is controlled object signal, and described measurement signal is the actual controlled signal recorded; Threshold value signal is the anti-jamming signal arranged, and gets rid of disturbance signal.
2. as claimed in claim 1 based on the on-off control circuit of separate-blas estimation, it is characterized in that, described one-level comparison module comprises: the first operational amplifier, and described two grades of comparison modules comprise: the 2nd operational amplifier, and described switch module comprises: the first switching tube;
Two input terminuss of described first operational amplifier connect setting signal and measurement signal respectively; Output terminal is connected with an input terminus of described 2nd operational amplifier;
Another input terminus connect threshold signal of described 2nd operational amplifier is connected, and output terminal is connected with the base stage of described first switching tube;
The collector electrode of described first switching tube connects power supply VCC, and emtting electrode connects controlled plant by control port PortA.
3. as claimed in claim 2 based on the on-off control circuit of separate-blas estimation, it is characterized in that, described one-level comparison module comprises: the 3rd operational amplifier, and described two grades of comparison modules comprise: four-operational amplifier, and described switch module comprises: the 2nd switching tube;
The in-phase input end of described first operational amplifier connects setting signal, and inverting input connects measurement signal, and output terminal is connected with the in-phase input end of described 2nd operational amplifier;
The inverting input of described 3rd operational amplifier connects setting signal, and in-phase input end connects measurement signal, and output terminal is connected with the in-phase input end of described four-operational amplifier;
The inverting input connect threshold signal of described 2nd operational amplifier is connected, and output terminal is connected with the base stage of described first switching tube;
The inverting input connect threshold signal of described four-operational amplifier is connected, and output terminal is connected with the base stage of described 2nd switching tube;
The collector electrode of described first switching tube connects power supply VCC, and emtting electrode connects controlled plant by control port PortA;
The collector electrode of described 2nd switching tube connects power supply VCC, and emtting electrode connects controlled plant by control port PortB.
4. based on the on-off control circuit of separate-blas estimation as described in item as arbitrary in claims 1 to 3, it is characterised in that: described measurement signal and described setting signal are by transfer resistance ground connection.
5. an electric control valve, it is characterised in that: adopt the on-off control circuit based on separate-blas estimation as claimed in claim 4.
6. a temperature controller, it is characterised in that: adopt the on-off control circuit based on separate-blas estimation as claimed in claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521027269.5U CN205304760U (en) | 2015-12-10 | 2015-12-10 | ON -OFF control circuit based on deviation detects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521027269.5U CN205304760U (en) | 2015-12-10 | 2015-12-10 | ON -OFF control circuit based on deviation detects |
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| Publication Number | Publication Date |
|---|---|
| CN205304760U true CN205304760U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521027269.5U Expired - Fee Related CN205304760U (en) | 2015-12-10 | 2015-12-10 | ON -OFF control circuit based on deviation detects |
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| CN (1) | CN205304760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542254A (en) * | 2019-08-30 | 2019-12-06 | 珠海格力电器股份有限公司 | Water chilling unit, inlet and outlet water pressure adjusting method thereof and air conditioning system |
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2015
- 2015-12-10 CN CN201521027269.5U patent/CN205304760U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542254A (en) * | 2019-08-30 | 2019-12-06 | 珠海格力电器股份有限公司 | Water chilling unit, inlet and outlet water pressure adjusting method thereof and air conditioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170801 Address after: 430080 Qingshan District stock company of Hubei, Wuhan Province Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Friendship Avenue, Hubei, Wuhan, No. 999 Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20201210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |