CN102681435A - Emergency controller based on automatic control system - Google Patents
Emergency controller based on automatic control system Download PDFInfo
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- CN102681435A CN102681435A CN2011100569663A CN201110056966A CN102681435A CN 102681435 A CN102681435 A CN 102681435A CN 2011100569663 A CN2011100569663 A CN 2011100569663A CN 201110056966 A CN201110056966 A CN 201110056966A CN 102681435 A CN102681435 A CN 102681435A
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- 206010033799 Paralysis Diseases 0.000 description 7
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- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 238000009421 internal insulation Methods 0.000 description 1
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Abstract
The invention discloses an emergency controller based on an automatic control system. The emergency controller comprises an input interface unit, a switching function execution unit and an output interface unit, wherein the input interface unit, the switching function execution unit and the output interface unit are mutually electrically connected in sequence; the input interface unit is electrically connected with a switching control unit, and the switching control unit is electrically connected with the switching function execution unit; the switching control unit is electrically connected with a switching rear-switching value unit and a switching rear-analog value unit respectively; the input interface unit is connected with the automatic control system, and the output interface unit is connected with factory control equipment; the input interface unit, the switching function execution unit, the output interface unit and the switching control unit are respectively connected with a power supply unit. When the automatic control system generates emergency situations, an emergency backup switching device emergently takes over all control or control of the important part of the control system, the switching device cuts off the control output of the crashed control system, and the control system carries out control output to achieve emergency control operation.
Description
Technical field
The present invention relates to industrial automation control system, particularly under the situation that robot control system(RCS) breaks down, the emergent output control function of taking over former automation control system is realized a kind of based on the automatic control system emergency controller of manual operation field apparatus.
Background technology
Along with the continual renovation of industrial automation control technology, increasing production control has been to be accomplished by automation control systems such as PLC, DCS.Production efficiency improves constantly, and the intelligent degree of factory is also increasingly high.As shown in Figure 1; Be the control system structural representation, control station 1 links to each other with switch 3 through communication bus 2, and switch 3 links to each other with the CPU 4 of system's parallel connection; CPU 4 is connected with control sub-station 6 communication signals through control bus 5 that (AO representes the analog quantity output signals of control system; DO representes the switching value output signal of control system), the IO cable 7 through control sub-station 6 is connected with factory opertaing device 9, controls the operation of (like motor, valve, regulator, the frequency converter etc.) of field apparatus.
Yet when a large amount of shop equipment controls realize by the automation control system completion; Also brought some hidden danger---when catastrophic failure situation (as: catastrophic failures such as IO module of the communication failure of substation, slip-stick artist and operator station communication failure, control system) appears in control system; Perhaps the CPU in the control system interrupts suddenly, crashes, and this will make automation control system out of hand.For avoiding above-mentioned catastrophic failure situation, the mode of taking usually is the direct manual operation field apparatus of operative employee; When the automated system fault took place suddenly, because the centralized control of automated system, the operative employee can't deal with a large amount of manual works simultaneously, causes serious consequence; The 2nd, a plurality of CPU are installed, but this mode causes the cpu system load to be multiplied in system, and a plurality of CPU can not synchrodata, system stability and the reliability of the more single CPU of a plurality of CPU reduce on the contrary.At present the operation time limit of a lot of automation control systems has surpassed the time limit, and the probability that breaks down is also in day by day increase.The 3rd, control system powered ups uninterrupted power source trips suddenly, causes control system out of control.
Summary of the invention
The purpose of this invention is to provide a kind of based on the automatic control system emergency controller; When the catastrophic failure situation appears in automation control system; By should anxious reserve switching device shifter emergent whole perhaps controls of pith of taking over this control system; Switching device shifter will cut off the control output of paralysis control system, control output by control system, reach emergent control operation.
The objective of the invention is to realize, a kind ofly it is characterized in that based on the automatic control system emergency controller that this switching device shifter comprises through following technical proposals:
---input interface unit is used to transmit the signal from automation control system;
---the handoff functionality fill order is used to carry out the signal of automation control system and the signal of switch control unit;
---the output interface unit is used for the signal of handoff functionality performance element is transferred to factory's opertaing device;
---switch control unit, be used for receiving system fault-signal or manual operation, and the control signal of sending system's switch unit is given the handoff functionality performance element;
---the power supply power supply unit, be responsible for emergent reserve switching device shifter power supply power supply;
Said input interface unit, handoff functionality performance element and output interface unit are electrically connected each other successively; Input interface unit is electrically connected with switch control unit; Switch control unit is electrically connected with the handoff functionality performance element;
Said switch control unit is electrically connected respectively and switches switching value unit, back and switch analog quantity unit, back;
Said input interface unit is connected with automation control system; The output interface unit is connected with the factory opertaing device; Input interface unit, handoff functionality performance element, output interface unit and switch control unit are connected the power supply power supply unit respectively.
Further, said handoff functionality performance element is made up of the handoff functionality executive circuit that multi-channel parallel connects.
Further, said handoff functionality executive circuit comprises independent control switching circuit and on-off circuit, and said control switching circuit is respectively equipped with two control contacts, and on-off circuit is respectively equipped with two-way input contact and one road output contact.
Said two control contacts link to each other with switch control unit, and on-off circuit input contact links to each other with input interface unit, and the input contact links to each other with switch control unit, and output contact links to each other with the output interface unit.
Be respectively equipped with K between the input contact of said on-off circuit and the output contact
1, K
2, K
3, K
4Four switches, K
1, K
2Corresponding with it respectively input contact and output contact link to each other, K
3, K
4Corresponding with it respectively input contact and output contact link to each other; K
1With K
4, K
2With K
3The input contact is connected in parallel.
64 tunnel handoff functionality executive circuits that are connected in parallel switch through Long-distance Control is whole in the said handoff functionality performance element, or through long-range control single channel switching.
The invention has the beneficial effects as follows, between industrial automation control system and factory's opertaing device, set up emergent reserve switching device shifter.Under system's normal operation situation, the input interface unit receiving control system of this switching device shifter is through the signal of IO cable transmission, and this signal is exported to the handoff functionality performance element, through the output interface unit signal is transferred to factory's opertaing device again.When system's generation communication disruption, when paralysis takes place CPU; By this switching device shifter switch control unit receiving system fault-signal or through operating personnel's manual operation; Send the control signal (this control signal is taken over the signal of communication of carrying out industrial automation control system, is equivalent to CPU) of system's switch unit and give the handoff functionality performance element; The handoff functionality performance element is carried out the signal of switch control unit; And this signal exported to the output interface unit, the output interface unit is transferred to factory's opertaing device with signal; When thereby paralysis takes place in the realization system, by the control of meeting an urgent need of automatic control system emergency controller.
Description of drawings
Fig. 1 is a prior art control system structural representation;
Fig. 2 is to use the control system structural representation of switching device shifter of the present invention;
Fig. 3 is a structural representation of the present invention;
Fig. 4 is a handoff functionality performance element structural representation.
Fig. 5 is that robot control system(RCS) emergency controller panel switches synoptic diagram.
Among the figure: 1, control station; 2, communication bus; 3, switch; 4, CPU; 5, control bus; 6, control sub-station; 7, IO cable; 8, emergent reserve switching device shifter; 9, factory's opertaing device; 801, input interface unit; 802, handoff functionality performance element; 803, output interface unit; 804, power supply power supply unit; 805, switch switching value unit, back; 806, switch control unit; 807, switch analog quantity unit, back; 10, control contact; 11, output contact; 12, output contact; 13, input contact; 14, input contact; 15, input contact; 16, input contact; 17, control contact.
Embodiment
As shown in Figure 2, for the present invention uses the structural representation in control system.Between industrial automation control system IO cable 7 and factory's opertaing device 9, set up emergent reserve switching device shifter 8.
As shown in Figure 3, should comprise input interface unit 801 based on the automatic control system emergency controller, be used to transmit the signal of automation control system through 7 transmission of IO cable; Handoff functionality performance element 802 is used to carry out the signal of automation control system and the signal of switch control unit 806; Output interface unit 803 is used for the signal of handoff functionality performance element 802 is transferred to factory's opertaing device 9; Switch control unit 806 is used for receiving system fault-signal or manual operation, and the control signal of sending system's switch unit is given handoff functionality performance element 802; Power supply power supply unit 804 is responsible for emergent reserve switching device shifter power supply power supply.Wherein, input interface unit 801, handoff functionality performance element 802 and output interface unit 803 are electrically connected successively each other; Input interface unit 801 is electrically connected with switch control unit 806; Switch control unit 806 is electrically connected with handoff functionality performance element 802; Switch control unit 806 is electrically connected switching value unit 805 respectively and switches analog quantity unit, back 807; Input interface unit 801 is connected with automation control system IO cable 7; Output interface unit 803 is connected with factory opertaing device 9; Power supply power supply unit 804 is electrically connected with input interface unit 801, handoff functionality performance element 802, output interface unit 803 and switch control unit 806 respectively.
As shown in Figure 4; Be handoff functionality performance element 802 one of them particular circuit configurations synoptic diagram; This handoff functionality performance element 802 is made up of the handoff functionality executive circuit, and the handoff functionality executive circuit comprises that independent control switching circuit and on-off circuit constitute, and control switching circuit is respectively equipped with two control contacts 10 and 17; On-off circuit is respectively equipped with two- way input contact 13,14 and 15,16 and one road output contact 11,12.Two control contacts 10 link to each other with switch control unit 806 with 17, and on-off circuit input contact 13,14 links to each other with input interface unit 801, and input contact 15,16 links to each other with switch control unit 806, and output contact 11,12 links to each other with output interface unit 803.Be respectively equipped with K between the input and output contact of on-off circuit
1, K
2, K
3, K
4Four switches, K
1, K
2Link to each other K with input contact 13,14 and output contact 11,12 respectively
3, K
4Link to each other with input contact 15,16 and output contact 11,12 respectively; K
1With K
4, K
2With K
3The input contact is connected in parallel.
Under system's normal operating conditions, K
1, K
2Be in normally off, input interface unit 801 is through importing contact 13,14 through K
1, K
2To output contact 11,12, the signal that input interface unit 801 transmission are got into is passed to output interface unit 803; When paralysis took place in system, the road signal that links to each other with input interface unit 801 got into switch control unit 806, and after switch control unit 806 was judged the robot control system(RCS) failure condition, switch control unit 806 sent signal to controlling contact 10,17, with K
1, K
2Switch to K
3, K
4, promptly K1, K2 break off, and K3, K4 connect.Switch control unit 806 is through importing contact 15,16 through K
3, K
4To output contact 11,12, the signal that switch control unit 806 transmission are got into is passed to output interface unit 803.
Handoff functionality performance element 802 of the present invention can be connected in parallel by multichannel handoff functionality executive circuit shown in Figure 4 and constitute.
As shown in Figure 5,64 tunnel handoff functionality executive circuits that are connected in parallel switch through Long-distance Control is whole in the handoff functionality performance element 802, or switch through the Long-distance Control single channel.
Under system's normal operation, emergent reserve switching device shifter 8 is in backup status, and switching device shifter is not charged, only is equivalent to a path., system just gets into duty when breaking down; So should emergent 8 pairs of control system of reserve switching device shifter have no influence during normal condition; Guarantee the safety between controller when two cover systems switch, can fill up the not enough blank of back-up capability under the automation control area system failure situation.
When paralysis takes place in system; Watchdog circuit by the switch control unit 806 that is connected with input interface unit 801 in this emergent reserve switching device shifter 8 is judged certain substation fault-signal in control system and the system; Perhaps manual operation, and the control signal of sending system's switch unit is given handoff functionality performance element 802; Handoff functionality performance element 802 is carried out the signal of switch control unit 806; And this signal exported to output interface unit 803, output interface unit 803 is transferred to factory's opertaing device 9 with signal; When thereby paralysis takes place in the realization system, by the control of meeting an urgent need of automatic control system emergency controller.
The present invention promptly takes over the output control of former automation control system under the situation that robot control system(RCS) breaks down, realize the blocked operation field apparatus.In process of production; When emergency even paralysis appear in automation control system; This product can perhaps be manually switched to control system by the operative employee by the house dog inquiry circuit of robot control system(RCS); Just can carry out emergency processing to system---the CPU that substitutes in the former control system controls system implementation, to keep normal production status, as far as possible loss is reduced to minimum.After the robot control system(RCS) operation is normal, can recovers again, thereby greatly reduce because the increasingly automated danger of bringing.
Characteristics of the present invention are:
(1) the automation control system signal and between control signal separately isolate fully.System is not charged when backup status at ordinary times, only is equivalent to a path.During the reserve function activation, just get into duty: so at ordinary times control system is had no influence, built-in system uses relay to carry out internal insulation, and the loop of the loop of automated system and reserve hand behaviour system isolates through 3～5A relay.Channel capacity is big, and reliability is high, has guaranteed the security of reserve loop long-term access greatly.
(2) hand behaviour switching value uses switch preset preset with the analog quantity scale, can be provided with fast in advance, makes things convenient for the design that is provided with of backup status.The switching value of control system and the control of analog quantity output directly are provided with on the panel of controller, and is fast simple, do not need programming, and the on-the-spot emergency processing that helps the operative employee is used; Output control is directly operated on panel, and is directly perceived simple.
(3) control loop of reserve is many.An equipment can be controlled output of 32 way switch amounts and the output of 32 tunnel analog quantitys simultaneously, and the control discharge conection requirement of medium-sized system can be satisfied in totally 64 loops; And the platform number that this switching device shifter can be expanded switching device shifter is up to satisfying enough reserve tasks.The control loop of its single device is many, and can expand, and according to the needs at scene, as long as the capacity of power supply is enough big, expansion that just can many equipment is up to the requirement of satisfying the system backup function.
(4) long-life wiring board design.The design of employing multilayer circuit board, the component pins welding of via hole mode guarantees that the welding of element is good; Also be brushed with insullac through preservative treatment, guarantee wiring board make moist and the corrosion situation under can use steady in a long-term.
(5) operated from a distance control function.Be provided with the operated from a distance function, can compounding practice platform or house dog CPU inquiry circuit, operate switching, guaranteed under the case of emergency the quick response of control system; Guarantee in the very first time.Control system obtains back-up protection.
(6) wiring board modular design.The whole modular designs of the feature board of wiring board are connected by connector terminals, and its replacing is simple to operate.
(7) the big current design of wiring board.Internal circuit board is considered the electric current surplus, can be in the safe handling under the situation of bigger load or load path.
(8) multiple-way feed system.The function of one road 220V interchange and four road 24V direct current supplys is arranged, and multiple-way supply is independent of each other mutually.The 24V direct current has the circuit balancing function, and under the big situation of one road curtage, other one the tunnel can not become load; Under the situation of 24V power cut-off, the 220V AC power of civil power normally drops into, and guarantees that the reserve function power supply power supply of controller is uninterrupted.
Claims (6)
1. one kind based on the automatic control system emergency controller, it is characterized in that this switching device shifter comprises:
---input interface unit (801) is used to transmit the signal from automation control system;
---handoff functionality performance element (802) is used to carry out the signal of automation control system and the signal of switch control unit;
---output interface unit (803) are used for the signal of handoff functionality performance element is transferred to factory's opertaing device;
---switch control unit (806), be used for receiving system fault-signal or manual operation, and the control signal of sending system's switch unit is given the handoff functionality performance element;
---power supply power supply unit (804), be responsible for emergent reserve switching device shifter power supply power supply;
Said input interface unit (801), handoff functionality performance element (802) and output interface unit (803) electrical connection successively each other; Input interface unit (801) is electrically connected with switch control unit (806); Switch control unit (806) is electrically connected with handoff functionality performance element (802);
Said switch control unit (806) is electrically connected respectively and switches switching value unit (805), back and switch analog quantity unit (807), back;
Said input interface unit (801) is connected with automation control system (7); Output interface unit (803) is connected with factory's opertaing device (9); Input interface unit (801), handoff functionality performance element (802), output interface unit (803) and switch control unit (806) are connected power supply power supply unit (804) respectively.
2. as claimed in claim 1ly it is characterized in that said handoff functionality performance element (802) is made up of 64 tunnel handoff functionality executive circuits that are connected in parallel based on the automatic control system emergency controller.
3. as claimed in claim 2 based on the automatic control system emergency controller; It is characterized in that; Said handoff functionality executive circuit comprises that independent control switching circuit and on-off circuit constitute; Said control switching circuit is respectively equipped with two control contacts (10) and (17), and on-off circuit is respectively equipped with two-way input contact (13,14) and (15,16) and one road output contact (11,12).
4. as claimed in claim 3 based on the automatic control system emergency controller; It is characterized in that; Said two control contacts (10) link to each other with switch control unit (806) with (17); On-off circuit input contact (13,14) links to each other with input interface unit (801), and input contact (15,16) links to each other with switch control unit (806), and output contact (11,12) links to each other with output interface unit (803).
5. as claimed in claim 3ly it is characterized in that, be respectively equipped with K between the input and output contact of said on-off circuit based on the automatic control system emergency controller
1, K
2, K
3, K
4Four switches, K
1, K
2Link to each other K with input contact (13,14) and output contact (11,12) respectively
3, K
4Link to each other with input contact (15,16) and output contact (11,12) respectively; K
1With K
4, K
2With K
3The input contact is connected in parallel.
6. as claimed in claim 2ly it is characterized in that 64 tunnel handoff functionality executive circuits that are connected in parallel switch through Long-distance Control is whole in the said handoff functionality performance element (802), or switch through the Long-distance Control single channel based on the automatic control system emergency controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110056966.3A CN102681435B (en) | 2011-03-10 | 2011-03-10 | Emergency controller based on automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110056966.3A CN102681435B (en) | 2011-03-10 | 2011-03-10 | Emergency controller based on automatic control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102681435A true CN102681435A (en) | 2012-09-19 |
| CN102681435B CN102681435B (en) | 2014-04-16 |
Family
ID=46813513
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110056966.3A Expired - Fee Related CN102681435B (en) | 2011-03-10 | 2011-03-10 | Emergency controller based on automatic control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104700909A (en) * | 2014-12-31 | 2015-06-10 | 大亚湾核电运营管理有限责任公司 | Nuclear power plant group pile safety system |
| CN108287511A (en) * | 2018-02-27 | 2018-07-17 | 上海瑞华(集团)有限公司 | A kind of independent logical controller for pure electric vehicle ship |
| CN109518224A (en) * | 2018-10-30 | 2019-03-26 | 金川集团股份有限公司 | Emergency PLC control process for caustic soda system |
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| CN101030073A (en) * | 2007-03-30 | 2007-09-05 | 哈尔滨工程大学 | Switch circuit for engine redundant electrically-controlled system and its controlling method |
| JP4212965B2 (en) * | 2003-06-12 | 2009-01-21 | 株式会社キーエンス | Safety relay system and output blocking unit for safety relay system |
| CN101510081A (en) * | 2009-03-31 | 2009-08-19 | 浙江中控技术股份有限公司 | Redundant switch control circuit and method |
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Patent Citations (5)
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| CN2600844Y (en) * | 2003-02-25 | 2004-01-21 | 福州福光百特自动化设备有限公司 | Loop redundancy control device |
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| CN104700909A (en) * | 2014-12-31 | 2015-06-10 | 大亚湾核电运营管理有限责任公司 | Nuclear power plant group pile safety system |
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| CN109518224A (en) * | 2018-10-30 | 2019-03-26 | 金川集团股份有限公司 | Emergency PLC control process for caustic soda system |
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| CN102681435B (en) | 2014-04-16 |
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Effective date of registration: 20151211 Address after: 710000 Shaanxi Province Economic Development Zone of Xi'an caotan eco Industrial Park South Middle Ring Road No. 6 Patentee after: Xi'an wellwork Industrial Co. Ltd. Address before: 710082 Shaanxi city of Xi'an Province Labor Park 1-1-4-3 Lucy shaomen rowille Patentee before: Chen Feng |
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Granted publication date: 20140416 Termination date: 20180310 |