CN102681435B - Emergency controller based on automatic control system - Google Patents
Emergency controller based on automatic control system Download PDFInfo
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- CN102681435B CN102681435B CN201110056966.3A CN201110056966A CN102681435B CN 102681435 B CN102681435 B CN 102681435B CN 201110056966 A CN201110056966 A CN 201110056966A CN 102681435 B CN102681435 B CN 102681435B
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- 206010033799 Paralysis Diseases 0.000 description 7
- 238000004891 communication Methods 0.000 description 7
- 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 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, in the situation that robot control system(RCS) breaks down, the emergent output control function of taking over former automation control system, realizes the one of manual operation field apparatus based on automatic control system emergency controller.
Background technology
Along with the continuous renewal of industrial automatic control technology, increasing production control has been to be completed by automation control systems such as PLC, DCS.Production efficiency improves constantly, and the intelligent degree of factory is also more and more higher.As shown in Figure 1, for control system structural representation, control station 1 is connected with switch 3 by communication bus 2, the CPU 4 of switch 3 and system parallel connection is connected, CPU 4 is connected with control sub-station 6 communication signals by control bus 5 that (AO represents the analog quantity output signals of control system, DO represents the switching value output signal of control system), IO cable 7 by control sub-station 6 is connected with factory opertaing device 9, controls the operation of (as motor, valve, regulator, the frequency converter etc.) of field apparatus.
But when a large amount of shop equipment control realizations are completed by automation control system, also brought some hidden danger---when catastrophic failure situation (as: catastrophic failure such as communication failure, slip-stick artist and the operator station communication failure of substation, IO module of control system) appears in control system, or the CPU in control system interrupts suddenly, crashes, this will make automation control system out of hand.For avoiding above-mentioned catastrophic failure situation, the mode one of conventionally taking is the direct manual operation field apparatus of operative employee; When automated system fault occurs suddenly, due to the centralized control of automated system, operative employee cannot deal with a large amount of manual works simultaneously, causes serious consequence; The 2nd, multiple CPU are installed in system, but this mode causes cpu system load to be multiplied, and multiple CPU can not synchrodata, system stability and the reliability of the more mono-CPU of multiple CPU reduce on the contrary.At present the operation time limit of a lot of automation control systems has exceeded the time limit, and the probability breaking down is also in increase day by day.The 3rd, control system powered ups uninterrupted power source trips suddenly, causes control system out of control.
Summary of the invention
The object of this invention is to provide a kind of based on automatic control system emergency controller, when there is catastrophic failure situation in automation control system, by should anxious backup switching device the control of the emergent whole or pith of taking over this control system, switching device shifter will cut off the control output of paralysis control system, by control system, control output, reach emergent control operation.
The object of the invention is to realize by following technical proposals, a kind of based on automatic control system emergency controller, it is characterized in that, this switching device shifter comprises:
---input interface unit, for transmitting the signal from automation control system;
---handoff functionality fill order, for carrying out the signal of automation control system and the signal of switch control unit;
---output interface unit, for the signal of handoff functionality performance element is transferred to factory's opertaing device;
---switch control unit, for receiving system fault-signal or manual operation, and the control signal of sending system switch unit is to handoff functionality performance element;
---Power supply unit, be responsible for emergent backup switching device Power supply;
Described input interface unit, handoff functionality performance element and output interface unit be electrical connection successively mutually; Input interface unit is electrically connected with switch control unit; Switch control unit is electrically connected with handoff functionality performance element;
Analog quantity unit after switching value unit and switching after described switch control unit is electrically connected respectively and switches;
Described input interface unit is connected with automation control system; Output interface unit is connected with factory opertaing device; Input interface unit, handoff functionality performance element, output interface unit and switch control unit are connected respectively Power supply unit.
Further, the handoff functionality executive circuit that described handoff functionality performance element is connected by multi-channel parallel forms.
Further, described handoff functionality executive circuit comprises independent control switching circuit and on-off circuit, and described control switching circuit is respectively equipped with two and controls contact, and on-off circuit is respectively equipped with two-way input contact He Yi road output contact.
Described two control contacts are connected with switch control unit, and on-off circuit input contact is connected with input interface unit, and input contact is connected with switch control unit, and output contact is connected with output interface unit.
Between the input contact of described on-off circuit and output contact, be respectively equipped with K
1, K
2, K
3, K
4four switches, K
1, K
2the input contact corresponding with it and output contact are connected respectively, K
3, K
4the input contact corresponding with it and output contact are connected respectively; K
1with K
4, K
2with K
3input contact is connected in parallel.
The handoff functionality executive circuit that described handoff functionality performance element Zhong64 road is connected in parallel switches by Long-distance Control entirety, or switches by long-range control single channel.
The invention has the beneficial effects as follows, between industrial automation control system and factory's opertaing device, set up emergent backup switching device.In system 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 handoff functionality performance element, then through output interface unit, signal is transferred to factory's opertaing device.When there is paralysis in system generation communication disruption, CPU, by this switching device shifter switch control unit receiving system fault-signal or by 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 switch unit to handoff functionality performance element; Handoff functionality performance element is carried out the signal of switch control unit; And this signal is exported to output interface unit, output interface unit is transferred to factory's opertaing device by signal; Thereby there is when paralysis in the system that realizes, by the control of meeting an urgent need of automatic control system emergency controller.
Accompanying drawing explanation
Fig. 1 is prior art control system structural representation;
Fig. 2 is the control system structural representation that uses switching device shifter of the present invention;
Fig. 3 is structural representation of the present invention;
Fig. 4 is handoff functionality performance element structural representation.
Fig. 5 is that robot control system(RCS) emergency controller panel switches schematic diagram.
In figure: 1, control station; 2, communication bus; 3, switch; 4, CPU; 5, control bus; 6, control sub-station; 7, IO cable; 8, emergent backup switching device; 9, factory's opertaing device; 801, input interface unit; 802, handoff functionality performance element; 803, output interface unit; 804, Power supply unit; 805, switch rear switching value unit; 806, switch control unit; 807, switch rear analog quantity unit; 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 backup switching device 8.
As shown in Figure 3, should, based on automatic control system emergency controller, comprise input interface unit 801, the signal transmitting by IO cable 7 for transmitting automation control system; Handoff functionality performance element 802, for carrying out the signal of automation control system and the signal of switch control unit 806; Output interface unit 803, for being transferred to factory's opertaing device 9 by the signal of handoff functionality performance element 802; Switch control unit 806, for receiving system fault-signal or manual operation, and the control signal of sending system switch unit is to handoff functionality performance element 802; Power supply unit 804, is responsible for emergent backup switching device Power supply.Wherein, input interface unit 801, handoff functionality performance element 802 and output interface unit 803 electrical connection mutually successively; 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 respectively switching value unit 805 and switches rear analog quantity unit 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 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, for handoff functionality performance element 802 one of them particular circuit configurations schematic diagram, this handoff functionality performance element 802 consists of handoff functionality executive circuit, handoff functionality executive circuit comprises that independent control switching circuit and on-off circuit form, control switching circuit is respectively equipped with two and controls contact 10 and 17, on-off circuit is respectively equipped with two- way input contact 13,14 and 15,16, He Yi road output contact 11,12.Control contact 10 for two and be connected with switch control unit 806 with 17, on-off circuit input contact 13,14 is connected with input interface unit 801, and input contact 15,16 is connected with switch control unit 806, and output contact 11,12 is connected with output interface unit 803.Between the input and output contact of on-off circuit, be respectively equipped with K
1, K
2, K
3, K
4four switches, K
1, K
2be connected with input contact 13,14 and output contact 11,12 respectively, K
3, K
4be connected with input contact 15,16 and output contact 11,12 respectively; K
1with K
4, K
2with K
3input contact is connected in parallel.
Under system normal operating conditions, K
1, K
2in normally off, input interface unit 801 is by inputting contact 13,14 through K
1, K
2to output contact 11,12, input interface unit 801 is transmitted to the signal entering and be passed to output interface unit 803; When paralysis occurs system, the Yi road signal that is connected with input interface unit 801 enters switch control unit 806, and switch control unit 806 judges after robot control system(RCS) failure condition, and switch control unit 806 sends signal to controlling contact 10,17, by K
1, K
2switch to K
3, K
4, K1, K2 disconnect, and K3, K4 connect.Switch control unit 806 is by inputting contact 15,16 through K
3, K
4to output contact 11,12, switch control unit 806 is transmitted to the signal entering and be passed to output interface unit 803.
Handoff functionality performance element 802 of the present invention can be connected in parallel and be formed by the handoff functionality executive circuit shown in multichannel Fig. 4.
As shown in Figure 5, the handoff functionality executive circuit that handoff functionality performance element 802Zhong 64 tunnels are connected in parallel switches by Long-distance Control entirety, or switches by Long-distance Control single channel.
Under system normal operation, emergent backup switching device 8 is in backup status, and switching device shifter is not charged, is only equivalent to a path.When breaking down, system just enters duty, so during normal condition this emergent backup switching device 8 on control system without any impact, guaranteed that two cover systems switch the safety between Time Controller, can fill up the blank of the back-up capability deficiency in automation control area system failure situation.
When there is paralysis in system, by the watchdog circuit of the switch control unit 806 being connected with input interface unit 801 in this emergent backup switching device 8, judge certain substation fault-signal in control system and system, or manual operation, and the control signal of sending system switch unit is to handoff functionality performance element 802; Handoff functionality performance element 802 is carried out the signal of switch control unit 806; And this signal is exported to output interface unit 803, output interface unit 803 is transferred to factory's opertaing device 9 by signal; Thereby there is when paralysis in the system that realizes, by the control of meeting an urgent need of automatic control system emergency controller.
The present invention, in the situation that robot control system(RCS) breaks down, promptly takes over the output control of former automation control system, realizes blocked operation field apparatus.In process of production, when automation control system occurs that emergency is even paralysed, this product can or be manually switched to control system by operative employee by the house dog inquiry circuit of robot control system(RCS), just can carry out emergency processing to system---the CPU in alternative former control system is to System Implementation control, to maintain normal production status, as far as possible loss is down to minimum.After robot control system(RCS) normal operation, can recover again, thereby greatly reduce the danger of bringing due to increasingly automated.
Feature of the present invention is:
(1) automation control system signal and between control signal separate completely isolation.When backup status at ordinary times, system is not charged, is only equivalent to a path.When emergency function activates, just enter duty: thus at ordinary times on control system without any impact, built-in system is used relay to carry out internal insulation, the loop of the loop of automated system and standby hand behaviour system isolates by 3～5A relay.Channel capacity is large, and reliability is high, has greatly guaranteed the security of standby loop long-term access.
(2) hand behaviour switching value is used switch default default with analog quantity scale, and quick-setting in advance, facilitates the design that arranges of backup status.The switching value of control system and the control of analog quantity output directly arrange on the panel of controller, simple and quick, do not need programming, and the on-the-spot emergency processing that is conducive to operative employee is used; Output is controlled and directly on panel, is operated, intuitively simple.
(3) control loop of standby is many.An equipment can be controlled 32 way switch amount output He32 road analog outputs simultaneously, and totally 64 loops, can meet the control discharge conection requirement of medium-sized system; And this switching device shifter can be expanded the number of units of switching device shifter until meet enough standby tasks.The control loop of its single device is many, and can expand, and according to on-the-spot needs, as long as the capacity of power supply is enough large, expansion that just can many equipment, until meet the requirement of system backup function.
(4) long-life circuit plate design.The design of employing multilayer circuit board, the component pins welding of via hole mode, guarantees that the welding of element is good; Through preservative treatment, be also brushed with insullac, guarantee wiring board make moist and corrosion condition under can be steady in a long-term use.
(5) operated from a distance control function.Be provided with operated from a distance function, can compounding practice platform or house dog CPU inquiry circuit, operate switching, guaranteed under 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 feature board of wiring board, are connected by connector terminals, and its replacing is simple to operate.
(7) the large current design of wiring board.Internal circuit board is considered electric current surplus, safe handling that can be in the case of larger load or load path.
(8) multiple-way feed system.You Yi road 220V exchanges the function of He Si road 24V direct current supply, and multiple-way supply is independent of each other mutually.24V direct current has circuit balancing function, and in the large situation of Yi road curtage, an other road can not become load; The in the situation that of 24V power cut-off, the 220V AC power of civil power normally drops into, and guarantees that the emergency function Power supply of controller is uninterrupted.
Claims (6)
1. based on an automatic control system emergency controller, it is characterized in that, comprising:
---input interface unit (801), for transmitting the signal from automation control system;
---handoff functionality performance element (802), for carrying out the signal of automation control system and the signal of switch control unit;
---output interface unit (803), for the signal of handoff functionality performance element is transferred to factory's opertaing device;
---switch control unit (806), for receiving system fault-signal or manual operation, and the control signal of sending system switch unit is to handoff functionality performance element;
---Power supply unit (804), be responsible for emergent backup switching device Power supply;
Described input interface unit (801), handoff functionality performance element (802) and output interface unit (803) electrical connection successively mutually; 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);
Analog quantity unit (807) after switching value unit (805) and switching after described switch control unit (806) is electrically connected respectively and switches;
Described 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 respectively Power supply unit (804).
2. as claimed in claim 1ly based on automatic control system emergency controller, it is characterized in that, the handoff functionality executive circuit that described handoff functionality performance element (802) You64 road is connected in parallel forms.
3. as claimed in claim 2 based on automatic control system emergency controller, it is characterized in that, described handoff functionality executive circuit comprises that independent control switching circuit and on-off circuit form, described control switching circuit is respectively equipped with two and controls contact (10) and (17), on-off circuit is respectively equipped with two-way input contact (13,14) and (15,16), He Yi road output contact (11,12).
4. as claimed in claim 3 based on automatic control system emergency controller, it is characterized in that, described two control contacts (10) are connected with switch control unit (806) with (17), on-off circuit input contact (13,14) is connected with input interface unit (801), input contact (15,16) is connected with switch control unit (806), and output contact (11,12) is connected with output interface unit (803).
5. as claimed in claim 3ly based on automatic control system emergency controller, it is characterized in that, between the input and output contact of described on-off circuit, be respectively equipped with K
1, K
2, K
3, K
4four switches, K
1, K
2be connected with input contact (13,14) and output contact (11,12) respectively, K
3, K
4be connected with input contact (15,16) and output contact (11,12) respectively; K
1with K
4, K
2with K
3input contact is connected in parallel.
6. as claimed in claim 2 based on automatic control system emergency controller, it is characterized in that, the handoff functionality executive circuit that described handoff functionality performance element (802) Zhong64 road is connected in parallel switches by Long-distance Control entirety, or switches by Long-distance Control single channel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110056966.3A CN102681435B (en) | 2011-03-10 | 2011-03-10 | Emergency controller based on automatic control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110056966.3A CN102681435B (en) | 2011-03-10 | 2011-03-10 | Emergency controller based on automatic control system |
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| CN102681435A CN102681435A (en) | 2012-09-19 |
| CN102681435B true CN102681435B (en) | 2014-04-16 |
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| CN201110056966.3A Expired - Fee Related CN102681435B (en) | 2011-03-10 | 2011-03-10 | Emergency controller based on automatic control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104700909B (en) * | 2014-12-31 | 2017-07-28 | 大亚湾核电运营管理有限责任公司 | Nuclear power plant's group's heap security 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 |
| CN109518224B (en) * | 2018-10-30 | 2020-05-15 | 金川集团股份有限公司 | Emergency PLC control process for caustic soda system |
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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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005103690A (en) * | 2003-09-30 | 2005-04-21 | Yaskawa Electric Corp | Industrial control controller |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2005-103690A 2005.04.21 |
| JP特许第4212965号B2 2009.01.21 |
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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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