CN104539278B - A kind of circuit of the interlocking of the signal with priority for launching control equipment - Google Patents
A kind of circuit of the interlocking of the signal with priority for launching control equipment Download PDFInfo
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- CN104539278B CN104539278B CN201410782318.XA CN201410782318A CN104539278B CN 104539278 B CN104539278 B CN 104539278B CN 201410782318 A CN201410782318 A CN 201410782318A CN 104539278 B CN104539278 B CN 104539278B
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Abstract
A kind of signal interlock circuit with priority, the circuit includes master control signal control circuit, Two-stage control circuit, three class control circuit and active circuit, wherein described master control signal control circuit is used for when master control signal is set to invalid, by Two-stage control signal, three class control signal and activation signal locking；The Two-stage control circuit is used for when the Two-stage control signal is set to effective, by the three class control signal and the activation signal locking；The three class control circuit is used for when the three class control signal is placed in effective, by the activation signal locking；The active circuit is used for when the activation signal is not locked out, outwards output activation drive signal；By the control of above three class control circuit, the accuracy of the activation signal of output ensure that.
Description
Technical field
The present invention relates to equipment control technology field, more particularly to a kind of launch control equipment technical field.
Background technology
In emission control field, ensure the safe and reliable of output drive signal, be one of the emphasis of control device research.
Launch control equipment is all instructions and the final executor of signal, in order to ensure the security of output signal, is somebody's turn to do
Kind equipment is generally Attended mode equipment, has personnel to ensure that the state before emission control is intact, by people when possessing launching condition
Work is replied to host computer possesses launching condition.
But under increasingly automation and intelligentized trend, launch control equipment also strides forward to unattended type,
Equipment autonomously is so just needed to handle and judge all MIMD and signal.The resident software of launching control equipment can be very good to accomplish respectively
Kind of condition adjudgement and locking, but at device power initial stage, i.e., during software initialization, there is can not send to host computer
Signal judged situation so as to occur malfunctioning, and the reaction time delay of software control is big, and real-time is poor.
In the higher occasion of control accuracy requirement, project planner also ensures that drive signal exists by the way of hardware
Exported under the conditions of correctly.But existing hardware signal protection circuit, when running into, forceful electric power disturbs or the control of host computer is believed
During number exception, also often it is in the presence of malfunctioning.
The problem of being existed based on prior art, in order to further improve the reliable of launch control equipment drive signal output
Property, equipment safety in operation is improved, avoids the generation of major accident, it is mutual that the application aims to provide a kind of signal with priority
Locking method and circuit, it can be ensured that the accuracy of signal output.
The content of the invention
The purpose of the present invention is mainly achieved through the following technical solutions：A kind of signal interlocking electricity with priority
Road, the circuit includes master control signal control circuit, Two-stage control circuit, three class control circuit and active circuit, wherein described
Master control signal control circuit is used for when master control signal is set to invalid, by Two-stage control signal, three class control signal and activation
Signal locking；The Two-stage control circuit is used for when the Two-stage control signal is set to effective, by the three class control signal
And the activation signal locking；The three class control circuit is used for when the three class control signal is placed in effective, by institute
State activation signal locking；The active circuit is used for when the activation signal is not locked out, outwards output activation drive signal；
By the control of above three class control circuit, the accuracy of the activation signal of output ensure that.
Preferably, the master control signal control circuit includes the first triode (Q1), the first relay (K1), wherein described
First relay is single-pole single-throw(SPST relay；When master control signal is effective, first triode ON, first relay
Reed is the Two-stage control circuit, the three class control circuit and the activation by normally-closed contact adhesive to normally opened contact
Circuit is powered.
Preferably, the Two-stage control circuit includes the second triode (Q3) and the second relay (K3), wherein described
Two relays are dpdt relays, when the Two-stage control signal is effective, second triode ON, and described second
The magnet coil power-up of relay, the normally-closed contact of second relay is distinguished into adhesive to normally opened contact, it is now described
Two-stage control circuit can be with the urgent coil of output drive signal to slave computer；Meanwhile the locking three class control signal
Corresponding drive signal is exported with the activation signal.
Preferably, the three class control circuit includes the 3rd triode (Q4) and the 3rd relay (K4), wherein, described
Three relays are dpdt relays, when the three class control signal is effective, the 3rd triode ON, and the described 3rd
The magnet coil power-up of relay, the normally-closed contact of the 3rd relay is distinguished into adhesive to normally opened contact, it is at this moment described
Three class control circuit can output drive signal on the urgent coil of slave computer；Meanwhile the locking activation signal output
Corresponding drive signal.
Preferably, the activation control circuit includes the 4th triode (Q5) and the 4th relay (K5), wherein described
Four relays are single-pole single-throw(SPST relay, when the master control signal is effective, and the Two-stage control signal and three class control signal
When being disarmed state, the 4th triode ON, in the normally-closed contact adhesive of the 4th relay to normally opened contact, institute
State activation control circuit can output drive signal on the activation coil of slave computer.
The present invention has the beneficial effect that：
1) the three class control signal control with priority is employed, ensure that feelings of the activation signal in various system exceptions
Under condition, the accuracy of output.
2) by way of hardware, especially with notching relay structure composition interlocking structure so that when system responds
Between it is fast, Stability Analysis of Structures, there are good performance indications.
Other features and advantages of the present invention will illustrate in the following description, also, partial feature and advantage from
Become apparent in specification, or understood by implementing the present invention.The purpose of the present invention and other advantages can by
Specifically noted structure is realized and obtained in specification, claims and the accompanying drawing write.
Brief description of the drawings
Accompanying drawing is only used for showing the purpose that example is embodied, and is not considered as limitation of the present invention, whole attached
In figure, identical reference symbol represents identical part.
Fig. 1 is the method flow diagram that output signal reliability is realized using three class control；
Fig. 2 is the signal interlock circuit with priority.
Embodiment
Control signal is divided into master control signal, Two-stage control is believed by the present invention using the three-level protective to output drive signal
Number and three class control signal, when master control signal is invalid, Two-stage control signal and three class control signal and activation signal quilt
Shielding, when Two-stage control signal is effective, three class control signal is shielded with activation signal, when three class control signal is effective,
Activation signal is shielded.Only when master control signal is effective, and Two-stage control signal and three class control signal are invalid, activation signal
It could normally export, substantially increase the accuracy of launch control equipment activation signal output.
The priority list of the interlocking signal of table 1
| First priority | Master control signal |
| Second priority | Two-stage control signal |
| Third priority | Three pole control signals |
| Controlled signal | Activation signal |
The present invention implementation method be：
(1) locking that master control signal exports to all control signals
When master control signal is effective, other control signals could export corresponding driving, and otherwise other control signals is defeated
Going out passage will be cut off by master control signal.
(2) locking that Two-stage control signal exports to three class control signal and activation signal
When Two-stage control signal is effective, the output channel of three class control signal and activation signal will be cut off, and now two
Level control signal can be with the urgent coil of output drive signal to slave computer.
(3) locking that three class control signal exports to activation signal
When three class control signal is effective, the output channel of activation signal will be cut off, and only three class control signal can
Output drive signal to slave computer urgent coil.
(4) output of activation signal is by Two-stage control signal and any locking all the way of three class control signal
From (2) and (3), when Two-stage control signal and any effective all the way three class control signal, activation signal it is defeated
Going out to be locked out.
The invention also provides a preferable hardware circuit for realizing the above method, above-mentioned side is realized using circuits below
During formula, system response time is fast, Stability Analysis of Structures, has preferable application value realistic.
(1), locking of the master control signal to all control signal output channels
When master control signal is effective, just the output channel of Two-stage control signal, three class control signal and activation signal is connect
Lead to, at this moment Two-stage control signal, three class control signal and the downward output driving of activation signal ability, as shown in the figure：
Only when master control signal is effective, triode Q1 conductings, relay K1 magnet coil power-up, by K1 relay springs
For piece by the adhesive of normally-closed contact 2 to normally opened contact 1, the positive pole for relay K2, K3, K4 and K5 magnet coil provides power supply.
(2), Two-stage control signal is to three class control signal and the locking of activation signal output channel
When Two-stage control signal is effective, the output channel of three class control signal is cut by dpdt relay K3
Disconnected, even if host computer have issued three class control signal, this equipment will not also export respective drive signal, as shown in the figure：
(a) when Two-stage control signal is effective, triode Q3 conductings, relay K3 magnet coil power-up, by relay
K3 normally-closed contact 2,4 distinguishes adhesive to normally opened contact 1,3, at this moment the output driving VCC28V cans of Two-stage control signal
It is output to by contact 1 on the urgent coil of slave computer；
While the locking output of three class control signal (b)：Relay K3 normally-closed contact 4 disconnects contact, makes three-level control
The output channel of signal processed disconnects, also can not be to exporting on the urgent coil of slave computer even if at this moment three class control signal is effective
Driving；
(c) while the also locking output of activation signal：Relay K3 normally-closed contact 2 disconnects contact, makes activation signal
Output lose power supply VCC28V.
(3) locking of the three class control signal to activation signal output channel
When three class control signal is effective, the output channel of activation signal is cut off by dpdt relay K4, i.e.,
Host computer is set to have issued activation signal, this equipment will not also export respective drive signal, as shown in the figure：
(a) when three class control signal is effective, triode Q4 conductings, relay K4 magnet coil power-up, by relay
K4 normally-closed contact 2,4 distinguishes adhesive to normally opened contact 1,3, at this moment the output driving VCC24V cans of three class control signal
It is output to by contact 3 on the urgent coil of slave computer；
While the locking output of activation signal (b)：Relay K4 normally-closed contact 2 disconnects contact, makes activation signal
Output channel disconnects, even if at this moment activation signal is effective, because the output of activation signal loses power supply VCC28V, also without normal direction
Output driving on the activation coil of slave computer.
(4) output of activation signal is by Two-stage control signal and three class control signal locking
When Two-stage control signal or effective any one signal of three class control signal, i.e. relay K3 normally-closed contact 2
Adhesive to normally opened contact 1 or relay K4 the adhesive of normally-closed contact 2 to normally opened contact 1 when, can all make the output of activation signal
Passage disconnects, it is ensured that the activation coil that activation signal can not be in Two-stage control signal or effective three class control signal to slave computer
Output driving.
Claims (2)
1. a kind of signal interlock circuit with priority, the circuit includes master control signal control circuit, Two-stage control circuit, three
Level control circuit and active circuit, wherein the master control signal control circuit is used for when master control signal is set to invalid, by two
Level control signal, three class control signal and activation signal locking；The Two-stage control circuit is used for when the Two-stage control is believed
When number being set to effective, by the three class control signal and the activation signal locking；The three class control circuit is used to work as
When the three class control signal is placed in effective, by the activation signal locking；The active circuit is used in the activation signal
When not being locked out, outwards output activates drive signal；By the control of above three class control circuit, it ensure that the described of output swashs
The accuracy of drive signal living；
The master control signal control circuit includes the first triode Q1, the first relay K1, diode D1, resistance R1, R2, optocoupler
U1, wherein master control signal pass sequentially through the base stage that optocoupler U1, resistance R1 access the first triode Q1, R2 be connected to Q1 base stage with
Between emitter stage, first relay is single-pole double-throw relay K1, diode D1 be connected to the first relay K1 just,
Between negative pole, K3 normally opened contact is the output end of master control signal control circuit, and K1 movable contact 3 is connected with VCC12V；When total
Control signal it is effective when, the first triode Q1 conducting, first relay spring by normally-closed contact adhesive to normally opened contact,
Powered for the Two-stage control circuit, the three class control circuit and the active circuit；
The Two-stage control circuit includes the second triode Q3 and the second relay K3, diode D3, resistance R5, R6, optocoupler U3,
Wherein Two-stage control signal passes sequentially through the base stage that optocoupler U3, resistance R5 access the second triode Q3, and R6 is connected to Q3 base stage
Between emitter stage, second relay is dpdt relay K3, and diode D3 is connected to the second relay K3
Between positive and negative electrode, K3 positive pole is connected with the output end of master control signal control circuit, and K3 normally-closed contact 2,4 is respectively with K4's
Movable contact 5,6 is connected, and K3 movable contact 5 is connected with VCC28V, and K3 movable contact 6 is connected with VCC24V, K3 normally opened contact 1 and
Urgent coil connection, when the Two-stage control signal is effective, the second triode Q3 conductings, the electricity of second relay
Magnetic coil powers up, and the normally-closed contact of second relay is distinguished into adhesive to normally opened contact, now the Two-stage control letter
Number it can be output on the urgent coil of slave computer；Meanwhile the locking three class control signal and the activation signal is defeated
Go out；
The three class control circuit includes the 3rd triode Q4 and the 3rd relay K4, diode D4, resistance R7, R8, optocoupler U4,
Wherein three class control signal passes sequentially through the base stage that optocoupler U4, resistance R7 access the 3rd triode Q4, and R8 is connected to Q4 base stage
Between emitter stage, the 3rd relay is dpdt relay K4, and diode D4 is connected to the 3rd relay K4
Between positive and negative electrode, K4 positive pole is connected with the output end of master control signal control circuit, K4 normally-closed contact 2 and K5 movable contact 3
Connection, K4 movable contact 5 are connected with K3 normally-closed contact 2, and K3 movable contact 6 is connected with K3 normally-closed contact 4, and the normally opened of K4 touches
Point 3 is connected with urgent coil, when the three class control signal is effective, the 3rd triode Q4 conductings, and the 3rd relay
The magnet coil power-up of device, the normally-closed contact of the 3rd relay is distinguished into adhesive to normally opened contact, at this moment the three-level
Control signal is output on the urgent coil of slave computer；Meanwhile the locking output of the activation signal；
The activation control circuit includes the 4th triode Q5 and the 4th relay K5, diode D5, resistance R9, R10, optocoupler
U5, wherein activation signal pass sequentially through the base stage that optocoupler U5, resistance R9 access the 4th triode Q5, and R10 is connected to Q5 base stage
Between emitter stage, the 3rd relay is single-pole double-throw relay K5, and diode D5 is connected to the 3rd relay K5
Between positive and negative electrode, K5 positive pole is connected with the output end of master control signal control circuit, K5 movable contact 3 and K4 normally-closed contact 2
Connection, K5 normally opened contact 1 are connected with activating coil, when the master control signal is effective, and the Two-stage control signal and three-level
When control signal is disarmed state, the 4th triode Q5 conductings, the normally-closed contact adhesive of the 4th relay is to often
Open on contact, the activation signal is output on the activation coil of slave computer.
2. the signal interlock circuit according to claim 1 with priority, it is characterised in that：The urgent coil is used for
Emergent control signal is responded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782318.XA CN104539278B (en) | 2014-12-16 | 2014-12-16 | A kind of circuit of the interlocking of the signal with priority for launching control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782318.XA CN104539278B (en) | 2014-12-16 | 2014-12-16 | A kind of circuit of the interlocking of the signal with priority for launching control equipment |
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| Publication Number | Publication Date |
|---|---|
| CN104539278A CN104539278A (en) | 2015-04-22 |
| CN104539278B true CN104539278B (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410782318.XA Active CN104539278B (en) | 2014-12-16 | 2014-12-16 | A kind of circuit of the interlocking of the signal with priority for launching control equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112614743B (en) * | 2020-12-24 | 2024-03-08 | 通号万全信号设备有限公司 | Non-gate control relay interlocking circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7567085B2 (en) * | 2003-04-23 | 2009-07-28 | Powertron Eng'g Co., Ltd. | Diagnosis for expected life of emergency power apparatus |
| CN202363927U (en) * | 2011-11-18 | 2012-08-01 | 四川湖山电器有限责任公司 | Intelligent efficient power supply module |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103770655B (en) * | 2012-10-23 | 2015-07-29 | 广州汽车集团股份有限公司 | A kind of high voltage protective system of electrokinetic cell and vehicle |
| CN203774876U (en) * | 2014-04-09 | 2014-08-13 | 北京合纵科技股份有限公司 | Remote control circuit of power distribution automation terminal equipment |
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2014
- 2014-12-16 CN CN201410782318.XA patent/CN104539278B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7567085B2 (en) * | 2003-04-23 | 2009-07-28 | Powertron Eng'g Co., Ltd. | Diagnosis for expected life of emergency power apparatus |
| CN202363927U (en) * | 2011-11-18 | 2012-08-01 | 四川湖山电器有限责任公司 | Intelligent efficient power supply module |
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| CN104539278A (en) | 2015-04-22 |
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