CN104391456A - Switching value acquisition conditioning circuit - Google Patents
Switching value acquisition conditioning circuit Download PDFInfo
- Publication number
- CN104391456A CN104391456A CN201410668394.8A CN201410668394A CN104391456A CN 104391456 A CN104391456 A CN 104391456A CN 201410668394 A CN201410668394 A CN 201410668394A CN 104391456 A CN104391456 A CN 104391456A
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- CN
- China
- Prior art keywords
- switching value
- switch
- pull
- resistor
- voltage
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electronic Switches (AREA)
Abstract
The invention belongs to the field of flight training simulator simulation and relates to a switching value acquisition conditioning circuit. The conditioning circuit is composed of one or more channels, wherein each channel is so structured that a pull-down resistor R1 is sequentially connected in series with a switch S1, a switch S2 and a pull-up resistor R2; the other end of the pull-up resistor R2 is connected to an external DC power source, the other end of the pull-down resistor R1 is earthed, and the detected acquired signal is connected between the two switches. The switching value acquisition conditioning circuit is matched with external power supply and provided with a toggle switch, and therefore, three acquired switching value signals of earthing/suspending, voltage/suspending and voltage/earthing are enabled to be converted into one high/low level signals and then can be acquired by a standard switching value acquisition module.
Description
Technical field
The invention belongs to flight training simulator emulation field, relate to a kind of switch acquisition modulate circuit.
Background technology
In many Industry Control, testing laboratory and analog simulation occasion, often have a large amount of switching values to need to gather, these switching values have plenty of ground connection/unsettled signal, have plenty of voltage/ground signalling, also have plenty of voltage/unsettled signal.And the acquisition module of standard can only gather this kind of on-off model of high level/low level.To gather dissimilar on-off model, needing to adopt different treatment measures to solve, as increased auxiliary circuit between acquisition module and collected signal, collected signal being converted to high level/low level form.For the situation that collected signal is more, need first on-off model to be classified, design different change-over circuits respectively according to signal type, then by the acquisition module collection of standard.Such change-over circuit does not often have versatility, can not the change of adaptation signal type, is difficult to be transplanted to other occasion yet.Usual acquisition module supplier can provide the air-conditioning reason board of some standards, by user as required at welding circuit above.This mode makes system acquisition equipment complicated, equipment layout difficulty, takes up room large.
Summary of the invention
The object of this method is: provide a kind of acquisition and conditioning circuit, coordinate externally fed, by arranging toggle switch, making ground connection/unsettled, voltage/unsettled, voltage/ground connection three kinds of collected on-off model convert a kind of high/low level signal to, thus can be gathered by standard switch amount acquisition module.
Technical scheme of the present invention is: a kind of switch acquisition modulate circuit, is characterized by: described modulate circuit is made up of the circuit of one or more passage; Wherein each passage is by a pull down resistor R1, a switch S 1 of connecting, then tandem tap S2, the pull-up resistor R2 that finally connects is formed, the direct supply of another termination externally fed of pull-up resistor R2, pull down resistor R1 other end ground connection, and tested collection signal is connected between two switches; Wherein,
A) toggle switch is set to: S1-breaks S2-when breaking, and can adapt to the signal type that switching value is voltage/ground;
B) toggle switch is set to: S1-breaks S2-when leading to, and can adapt to the signal type that switching value is ground connection/unsettled;
C) toggle switch is set to: S1-leads to S2-when breaking, and can adapt to the signal type that switching value is voltage/unsettled.
Advantage of the present invention is:
A) arranged by two switch combinations, make the standard switch amount acquisition module of same type can the dissimilar switch acquisition of simultaneous adaptation three kinds, meet common switch acquisition demand;
B) circuit forms simple, easily realizes;
C) by selecting resistor chain and switch pair, can conveniently be linked to be multichannel parallel circuit, compact conformation, can be used for large-scale switches amount collection conditioning;
D) gather voltage to be provided by outside, the occasion of applicable 5-40V.
The invention has the beneficial effects as follows: a kind of acquisition and conditioning circuit, coordinate externally fed, by arranging toggle switch, making ground connection/unsettled, voltage/unsettled, voltage/ground connection three kinds of collected on-off model convert a kind of high/low level signal to, thus can be gathered by standard switch amount acquisition module.
Accompanying drawing explanation
Fig. 1 is the access diagram that switch acquisition of the present invention adjusts road circuit;
Fig. 2 is the schematic diagram of a kind of embodiment of the present invention;
Fig. 3 docks schematic diagram by CPCI backboard with I/O interface board for conditioning plate in the embodiment shown in Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
One, circuit of the present invention is formed
Modulate circuit of the present invention is made up of the circuit of one or more passage, wherein each passage is by a pull down resistor R1, to connect a switch S 1, tandem tap S2 again, the pull-up resistor R2 that finally connects is formed, the direct supply of another termination externally fed of pull-up resistor R2, pull down resistor R1 other end ground connection, and tested collection signal is connected between two switches, as shown in Figure 1.
Two, circuit theory of the present invention
A) toggle switch is set to: S1-breaks S2-when breaking, and can adapt to the signal type that switching value is voltage/ground;
B) toggle switch is set to: S1-breaks S2-when leading to, and can adapt to the signal type that switching value is ground connection/unsettled;
C) toggle switch is set to: S1-leads to S2-when breaking, and can adapt to the signal type that switching value is voltage/unsettled.
Below in conjunction with embodiment and Fig. 2, the present invention will be further described.
The present embodiment have employed 8 aisle resistances row and switch pair to realize the modulate circuit in the present invention, totally 16 groups, 128 passages, give the circuit diagram on wherein 4 Zu Gong 32 tunnels in Fig. 2.
The present embodiment modulate circuit adopts printed circuit board (PCB) to realize, and circuit board interface is as follows:
with collection plate interface: adopt CPCI standard interface, docked with collection plate by CPCI backboard;
with collected signal interface: adopt two HD-78 connectors;
with electric power system interface: adopt 12 pin power-feed connectors.
Switch and resistance selection:
pull-up resistor and pull down resistor all select 10K resistor chain.
the microswitch of 8 one group selected by switch.
Fig. 3 is that conditioning plate docks schematic diagram by CPCI backboard with I/O interface board.
Claims (1)
1. a switch acquisition modulate circuit, is characterized by: described modulate circuit is made up of the circuit of one or more passage; Wherein each passage is by a pull down resistor R1, a switch S 1 of connecting, then tandem tap S2, the pull-up resistor R2 that finally connects is formed, the direct supply of another termination externally fed of pull-up resistor R2, pull down resistor R1 other end ground connection, and tested collection signal is connected between two switches; Wherein,
A) toggle switch is set to: S1-breaks S2-when breaking, and can adapt to the signal type that switching value is voltage/ground;
B) toggle switch is set to: S1-breaks S2-when leading to, and can adapt to the signal type that switching value is ground connection/unsettled;
C) toggle switch is set to: S1-leads to S2-when breaking, and can adapt to the signal type that switching value is voltage/unsettled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668394.8A CN104391456A (en) | 2014-11-19 | 2014-11-19 | Switching value acquisition conditioning circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668394.8A CN104391456A (en) | 2014-11-19 | 2014-11-19 | Switching value acquisition conditioning circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104391456A true CN104391456A (en) | 2015-03-04 |
Family
ID=52609374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410668394.8A Pending CN104391456A (en) | 2014-11-19 | 2014-11-19 | Switching value acquisition conditioning circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104391456A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830867A (en) * | 2020-06-28 | 2020-10-27 | 东风电驱动系统有限公司 | Three-state switch signal acquisition circuit and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201893771U (en) * | 2010-11-19 | 2011-07-06 | 陕西千山航空电子有限责任公司 | Universal interface circuit for discrete magnitude acquisition of airborne equipment |
| JP2012168787A (en) * | 2011-02-15 | 2012-09-06 | Fuji Electric Co Ltd | Encoder communication circuit |
| CN202522676U (en) * | 2011-12-16 | 2012-11-07 | 陕西千山航空电子有限责任公司 | Switching value general acquisition circuit |
| CN103488111A (en) * | 2013-09-29 | 2014-01-01 | 宁波市鄞州雪利曼电子仪表有限公司 | Automobile general switching collecting system |
-
2014
- 2014-11-19 CN CN201410668394.8A patent/CN104391456A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201893771U (en) * | 2010-11-19 | 2011-07-06 | 陕西千山航空电子有限责任公司 | Universal interface circuit for discrete magnitude acquisition of airborne equipment |
| JP2012168787A (en) * | 2011-02-15 | 2012-09-06 | Fuji Electric Co Ltd | Encoder communication circuit |
| CN202522676U (en) * | 2011-12-16 | 2012-11-07 | 陕西千山航空电子有限责任公司 | Switching value general acquisition circuit |
| CN103488111A (en) * | 2013-09-29 | 2014-01-01 | 宁波市鄞州雪利曼电子仪表有限公司 | Automobile general switching collecting system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830867A (en) * | 2020-06-28 | 2020-10-27 | 东风电驱动系统有限公司 | Three-state switch signal acquisition circuit and method |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |