CN107368020B - It is a kind of it is highly reliable penetrate before timing action triggers method - Google Patents

It is a kind of it is highly reliable penetrate before timing action triggers method Download PDF

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Publication number
CN107368020B
CN107368020B CN201710464525.4A CN201710464525A CN107368020B CN 107368020 B CN107368020 B CN 107368020B CN 201710464525 A CN201710464525 A CN 201710464525A CN 107368020 B CN107368020 B CN 107368020B
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plc
row
hydrogen burning
programmable logic
logic controller
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CN107368020A (en
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郑国昆
沈福东
苏娟
刘丽媛
刘杰奇
许学雷
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China Academy of Launch Vehicle Technology CALT
Beijing Institute of Space Launch Technology
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China Academy of Launch Vehicle Technology CALT
Beijing Institute of Space Launch Technology
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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
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/058—Safety, monitoring
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/14—Plc safety
    • G05B2219/14014—Redundant processors and I-O
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/14—Plc safety
    • G05B2219/14136—Redundancy, masking redundancy, avoid failure but no fault detection

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Control By Computers (AREA)

Abstract

One kind is highly reliable to penetrate preceding timing action triggers method, before engine ignition, a large amount of hydrogen can be discharged, these hydrogen need to be burnt before ignition, prevent these hydrogen in engine ignition from detonation occurs, it is row's hydrogen burning by this combustion of hydrogen process, time of ignition is defined first at the 0s moment, is negative the moment before igniting, in-t moment, programmable logic controller (PLC) PLC receives row's hydrogen burning timing ready signal of external system, starts timing；Timing t duration judges automatically the row's of obtaining hydrogen burning ignition signal；At the 0s moment, programmable logic controller (PLC) PLC receives row's hydrogen burning ignition signal of external system, while the host computer of programmable logic controller (PLC) PLC receives row's hydrogen burning ignition signal by network and is transmitted to programmable logic controller (PLC) PLC；Then programmable logic controller (PLC) PLC is by carrying out " two from three " logic judgment for three signals, if signal is effective, the movement of the row's of execution hydrogen burning timing.

Description

It is a kind of it is highly reliable penetrate before timing action triggers method
Technical field
The present invention relates to it is a kind of it is highly reliable penetrate before timing action triggers method, belong to carrier rocket ground and survey hair control technology Field.
Background technique
A large amount of hydrogen can be discharged before engine ignition using the carrier rocket oxyhydrogen engine that gas generator recycles Gas, these hydrogen need to be burnt before ignition, prevent these hydrogen in engine ignition from detonation occurs, by this hydrogen Combustion process is row's hydrogen burning.One kind is highly reliable to penetrate preceding timing action triggers method, for the igniting of the reliably row's of triggering hydrogen burning Timing movement.Time of ignition is defined first at the 0s moment, is negative the moment before igniting, in-t moment, Programmable logical controller Device PLC receives row's hydrogen burning timing ready signal of external system, starts timing；Timing t duration judges automatically the combustion of the row's of obtaining hydrogen Burn ignition signal；At the 0s moment, programmable logic controller (PLC) PLC receives row's hydrogen burning ignition signal of external system, while can compile The host computer of journey logic controller PLC receives row's hydrogen burning ignition signal by network and is transmitted to programmable logic controller (PLC) PLC；Then programmable logic controller (PLC) PLC is by carrying out " two from three " logic judgment for three signals, if signal is effective, The hydrogen burning timing movement of the row of execution.
When carrier rocket emits process, the collaborative work being related between many systems, the work in part system needs The signal of receiving portion external system executes to drive the timing inside this system to act.Simultaneously for the field of high reliability request It closes, it is necessary to avoid two kinds of situations of " early to execute ", " not executing ".
In existing ground launch testing process, acted by the timing that external system signal drives, it is generally double using signal path The mode of redundancy enhances the received reliability of signal, while the link of manipulator's confirmation, enhancing action reliability is added；And believe The mode of number channel dual redundant is substantially a signal, transmits via multiple signal paths, is not carried out the superfluous of signal itself Remaining, i.e. the design of dual redundant is only logical for signal prepare more part one substantially or by a signal come driver' s timing movement Interrogate channel；And the link of manipulator's confirmation, it can also reduce the efficiency that timing movement executes.
Summary of the invention
Technology of the invention solves the problems, such as: overcoming the deficiencies of the prior art and provide a kind of highly reliable timing movement touching Forwarding method promotes the reliability and safety of timing movement before penetrating.
The technical solution of the invention is as follows: one kind is highly reliable to penetrate preceding timing action triggers method, comprises the following steps that
(1) it defines before rocket takes off to penetrate the last stage, with rocket firing for the 0s moment, before igniting-t moment, it is programmable to patrol Volume controller PLC collects external row's hydrogen burning by digital data acquisition module DI and lights a fire after preparation instruction signal, automatic meter When t duration, i.e., arrival the 0s moment when, programmable logic controller (PLC) PLC generate row's hydrogen burning ignition signal；
(2) in-t1The host computer man-machine interface manual operation at moment, programmable logic controller (PLC) PLC executes row's hydrogen burning Igniting sequential acts unlocking command, and programmable logic controller (PLC) PLC is made to execute firing action unlock, t1> t；
(3) in 0s, programmable logic controller (PLC) PLC acquires row's hydrogen of external system by digital data acquisition module DI module Combustion ignition signal；
(4) in 0s, the host computer of programmable logic controller (PLC) PLC receives the network igniting letter of external system by Ethernet Number, which is transmitted to programmable logic controller (PLC) PLC by the host computer of programmable logic controller (PLC) PLC；
(5) after the unlock of step (2) firing action, to row's hydrogen burning point of step (1) programmable logic controller (PLC) PLC generation Fiery signal, step (3) arrange hydrogen burning ignition signal and step (4) by the external system that digital data acquisition module DI module acquires Network arranges hydrogen burning ignition signal, automatic to execute two from three logic judgment, that is, receives step (1) programmable logic controller (PLC) PLC Row's hydrogen burning ignition signal of generation, step (3) pass through row's hydrogen burning that digital data acquisition module DI module is acquired from external system More than two signals in ignition signal and step (4) network row's hydrogen burning ignition signal then determine to arrange hydrogen burning igniting letter Number effectively, that is, the row of progress hydrogen burning igniting.
The precision that programmable logic controller (PLC) PLC self-clocking function in the step (1) can be acted according to timing Class requirement, Selection utilization programmable logic controller (PLC) PLC internal clocking or peripheral hardware high precision clock carry out self-clocking.
The t1It is 10~15 seconds.
Row's hydrogen burning timing in the step (2) acts unlock instruction, the premise executed for row's hydrogen burning timing movement Condition, arrange hydrogen burning timing movement executed unlock under conditions of, could the row's of execution hydrogen burning timing act, with the row of being promoted The safety of hydrogen burning timing movement.
The invention has the following advantages over the prior art:
(1) for the present invention on the basis of prior art signal path dual redundant, signal path dual redundant is substantially or one A signal is via multiple signal paths, and signal triggering method of the invention then realizes the multiple redundancy of signal itself, is promoted The reliability of signal.
(2) present invention save the link that signal triggering moment is confirmed by manipulator, save manipulator's artificial judgment when Between, it directlys adopt " two from three " logic and judges automatically, while guaranteeing reliability, improve the efficiency that movement executes.
(3) present invention can be according to the time precision requirement that timing acts, and unrestricted choice programmable logic controller (PLC) PLC's is interior Signal source of portion's timer as self-clocking also can be used high-precision outside and the signal of self-clocking be used as always Source can make optimal selection in performance and cost.
(4) it is of the invention penetrate before timing action triggers method, in addition to the timing action triggers meaning for arranging hydrogen burning igniting It outside, is essentially a kind of general timing action triggers method, in the timing movement automatic trigger application that other have highly reliable requirement In occasion, it can be used, method is versatile.
(5) it is of the invention penetrate before timing action triggers method, just can enter after needing manipulator to be unlocked movement before penetrating The process of timing action triggers, process is complicated before carrier rocket is penetrated, therefore the link of manipulator's manual release is added, and can be improved and penetrates The safety of preceding process.
Detailed description of the invention
Fig. 1 is flow chart of the invention；
Fig. 2 is signal flow figure of the invention；
Fig. 3 is " two from three " logic control schematic diagram of the invention.
Specific embodiment
A kind of highly reliable timing action triggers method, the carrier rocket oxyhydrogen engine recycled using gas generator, Before engine ignition, a large amount of hydrogen can be discharged, these hydrogen need to be burnt before ignition, prevent in engine point Detonation occurs for these hydrogen when fiery, is row's hydrogen burning by this combustion of hydrogen process.One kind is highly reliable to penetrate preceding timing action triggers side Method, the timing movement for the igniting of the reliably row's of triggering hydrogen burning.Time of ignition is defined first at the 0s moment, when igniting is negative before It carves, in-t moment, programmable logic controller (PLC) PLC receives row's hydrogen burning timing ready signal of external system, starts timing； Timing t duration judges automatically the row's of obtaining hydrogen burning ignition signal；At the 0s moment, programmable logic controller (PLC) PLC receives external system Row's hydrogen burning ignition signal, while the host computer of programmable logic controller (PLC) PLC pass through network receive row hydrogen burning igniting letter Number and be transmitted to programmable logic controller (PLC) PLC；Then by carrying out three signals, " three take programmable logic controller (PLC) PLC Two " logic judgments, if signal is effective, the movement of the row's of execution hydrogen burning timing.
One kind of the invention is highly reliable to penetrate preceding timing action triggers method, comprises the following steps that
(1) it defines before rocket takes off to penetrate the last stage, with rocket firing for the 0s moment, before igniting-t moment, it is programmable to patrol Volume controller PLC collects external row's hydrogen burning by digital data acquisition module DI and lights a fire after preparation instruction signal, automatic meter When t duration, i.e., arrival the 0s moment when, programmable logic controller (PLC) PLC generate row's hydrogen burning ignition signal；
(2) in-t1The host computer man-machine interface manual operation at moment, programmable logic controller (PLC) PLC executes row's hydrogen burning Igniting sequential acts unlocking command, and programmable logic controller (PLC) PLC is made to execute firing action unlock, t1> t；
(3) in 0s, programmable logic controller (PLC) PLC acquires row's hydrogen of external system by digital data acquisition module DI module Combustion ignition signal；
(4) in 0s, the host computer of programmable logic controller (PLC) PLC receives the network igniting letter of external system by Ethernet Number, which is transmitted to programmable logic controller (PLC) PLC by the host computer of programmable logic controller (PLC) PLC；
(5) after the unlock of step (2) firing action, to row's hydrogen burning point of step (1) programmable logic controller (PLC) PLC generation Fiery signal, step (3) arrange hydrogen burning ignition signal and step (4) by the external system that digital data acquisition module DI module acquires Network arranges hydrogen burning ignition signal, automatic to execute two from three logic judgment, that is, receives step (1) programmable logic controller (PLC) PLC Row's hydrogen burning ignition signal of generation, step (3) pass through row's hydrogen burning that digital data acquisition module DI module is acquired from external system More than two signals in ignition signal and step (4) network row's hydrogen burning ignition signal then determine to arrange hydrogen burning igniting letter Number effectively, that is, the row of progress hydrogen burning igniting.
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Row's hydrogen combustion system of carrier rocket includes: programmable logic controller (PLC) PLC and igniter；Programmable logic control Storage operation row's hydrogen burning igniting sequential controls program in device PLC processed, passes through the digital data acquisition mould of programmable logic controller (PLC) The command signal of block DI acquisition external system；Igniter is located on the flat pad of carrier rocket, programmable logic controller (PLC) PLC Controllable igniter is lighted a fire, and the hydrogen that engine is discharged is lighted；The host computer of programmable logic controller (PLC) PLC has Man-machine interface can carry out data interaction by Ethernet and external system and programmable logic controller (PLC) PLC.
As shown in Fig. 2, being signal flow figure of the invention, process issues before external system signal source can be penetrated according to carrier rocket " row's hydrogen burning igniting prepares ", " igniting of row's hydrogen burning " are via signal converting equipment to the number of programmable logic controller (PLC) PLC Amount acquisition DI module, in addition, also transmittable " igniting of the row's hydrogen burning " signal of external system signal source is supreme via Ethernet switch Position machine, this signal is forwarded to programmable logic controller (PLC) PLC via Ethernet switch by host computer, the 0s moment, programmable to patrol Controller PLC is collected to judge automatically, what the two row's hydrogen burning ignition signals and self-clocking t duration for receiving external system transmission generated Hydrogen burning ignition signal is arranged, two or more in these three signals are effective, then programmable logic controller (PLC) PLC passes through The output module control igniter of PLC completes row's hydrogen burning igniting.
Preceding process is penetrated according to carrier rocket, using 0s as time of ignition, when being negative before 0s, that is, penetrates the last stage.Such as Fig. 1 institute Show, is flow chart of the invention.
(1)-t1At the moment, in the case where manipulator's confirmation row's hydrogen burning satisfies the requirements execution, manipulator passes through host computer Man-machine interface manual operation execute row hydrogen burning igniting sequential act unlocking command, make programmable logic controller (PLC) PLC execute Firing action unlock, t1> t；In the case where row's hydrogen burning igniting sequential movement does not unlock, even if subsequently received row's hydrogen fires It burns ignition signal and does not also execute firing action.
(2)-t moment, external system signal source issue row's hydrogen burning igniting preparation instruction, and programmable logic controller (PLC) PLC is logical It crosses after row's hydrogen burning igniting preparation instruction signal that digital data acquisition module DI collects external system, when starting peripheral hardware high-precision Clock timer starts timing, and self-clocking t duration, that is, when reaching the 0s moment, programmable logic controller (PLC) PLC judges at this time as point The fiery moment automatically generates row's hydrogen burning ignition signal；
(3) in 0s, external system signal source issues row's hydrogen burning firing command, programmable logic via signal converting equipment Controller PLC acquires row's hydrogen burning ignition signal of external system by digital data acquisition module DI module；
(4) in 0s, external system issues row's hydrogen burning ignition signal, programmable logic controller (PLC) via Ethernet switch The host computer of PLC receives the network ignition signal of external system by Ethernet, and the host computer of programmable logic controller (PLC) PLC should Network ignition signal is transmitted to programmable logic controller (PLC) PLC；
(5) after firing action unlock, the row's hydrogen generated after programmable logic controller (PLC) PLC self-clocking in (2) is fired Burn ignition signal, hydrogen burning ignition signal arranged by the external system that digital data acquisition module DI module acquires in (3), in (4) on Row's hydrogen burning ignition signal of position machine forwarding, it is automatic to execute two from three logic judgment, i.e., in three row's hydrogen burning ignition signals Two or more signals are effective, then determine that row's hydrogen burning ignition signal is effective, the output of programmable logic controller (PLC) PLC Module controls igniter and executes row's hydrogen burning firing action.
In Fig. 2, except system signal source be not known and require outer, remaining all devices is all made of the mode of hot backup redundancy, i.e., The equipment of same function is equipped with two sets, and two sets work at the same time warm back-up each other, if wherein a set of failure when, can also Guarantee the normal use of equipment；System is set to have the ability worked normally under conditions of once failure, when hydrogen burning is arranged in promotion The reliability of sequence movement；
In Fig. 2, signal converting equipment uses the substitute mode of relay isolation, by row's hydrogen combustion system and external system circuit It realizes isolation, will not interfere with each other；Using series-parallel circuit design method, guarantee to stick together in a relay contact or short Under conditions of road, signal transmission, the reliability of further promotion signal transmission are not interfered with；
As shown in figure 3, being the control principle drawing of two from three logic judgment.Firstly, three row's hydrogen burning ignition signals are two-by-two Carry out logical "and" operation；Secondly, three signals for carrying out logical "and" operation output are carried out logical "or" operation；Its logic Expression formula is as follows:
Ignition signal effectively=(ignition signal _ from * ignition signal _ outer)+(ignition signal _ from * ignition signal _ net)+(point Fiery signal _ net * ignition signal _ outer)；
Wherein, " ignition signal _ from " it is row's hydrogen burning igniting letter that programmable logic controller (PLC) PLC self-clocking generates Number；" ignition signal _ outer " is row's hydrogen burning ignition signal that external system is issued via signal converting equipment；" ignition signal _ net " The row's hydrogen burning ignition signal forwarded for host computer via Ethernet switch；Row's hydrogen burning ignition signal is a digital quantity, That is Boolean variable, 0 represents in vain, and 1 represents effectively, therefore any two in above-mentioned logical expression only in three signals Or three be 1 when, ignition signal just it is effective, realize two from three logic judgment；
It is high that carrier rocket arranges hydrogen burning igniting reliability requirement, it is necessary to and the case where avoiding " early to execute ", " not executing " occurs, Signal interference is the influence of the impulse disturbances of the factor that must be taken into consideration, especially signal, may result in igniting sequential and holds too early Row, therefore the signal of digital data acquisition module DI is added in row's hydrogen burning ignition control program in programmable logic controller (PLC) PLC Filter function just judges effectively in the signal that continuous 5 scan periods of programmable logic controller (PLC) PLC are 1；
Timing action triggers method according to the invention issues row's hydrogen burning ignition signal to can compile from 0s moment external system The delay time that journey logic controller PLC output module control igniter carries out firing action is respectively as follows:
A) row's hydrogen burning ignition signal that programmable logic controller (PLC) PLC self-clocking generates: delay time is PLC itself The scan period of intrinsic scan period, the programmable logic controller (PLC) PLC of hot backup redundancy are typically about 20ms；
B) row's hydrogen burning ignition signal that external system is issued via signal converting equipment: the relay of signal converting equipment is dynamic Make the time, within generally 5ms；Due to the presence of signal filter function, need to be delayed continuous 5 scan periods, therefore, this letter Number delay be about 105ms；
C) row's hydrogen burning ignition signal that host computer is forwarded via Ethernet switch: this signal is passed via Ethernet Defeated, this signal is sent by Ethernet with instruction type, does not need to carry out signal filtering, transmission is typically about 100ms；
Since programmable logic controller (PLC) PLC is after row's hydrogen burning movement unlock, examined in circulation in each scan period That surveys three above signal has an acting type, and the effectively executable row's hydrogen burning firing action of two signals, then programmable logic control The delay time t of the output module output firing command of device PLC processed2About 100ms < t2< 105ms, it is quick to meet igniting sequential The requirement of property.

Claims (3)

1. one kind is highly reliable to penetrate preceding timing action triggers method, it is characterised in that: comprise the following steps that
(1) it defines before rocket takes off to penetrate the last stage, with rocket firing for the 0s moment, before igniting-and t moment, programmable logic control Device PLC processed collects external row's hydrogen burning by digital data acquisition module DI and lights a fire after preparation instruction signal, when self-clocking t Long, that is, when reaching the 0s moment, programmable logic controller (PLC) PLC generates row's hydrogen burning ignition signal；
(2) in-t1Moment, when the host computer man-machine interface manual operation of programmable logic controller (PLC) PLC executes row's hydrogen burning igniting Sequence acts unlocking command, and programmable logic controller (PLC) PLC is made to execute firing action unlock, t1> t；
(3) in 0s, programmable logic controller (PLC) PLC acquires row's hydrogen burning of external system by digital data acquisition module DI module Ignition signal；
(4) in 0s, the host computer of programmable logic controller (PLC) PLC arranges hydrogen burning point by the network that Ethernet receives external system Network row's hydrogen burning ignition signal is transmitted to programmable logic control by the host computer of fiery signal, programmable logic controller (PLC) PLC Device PLC processed；
(5) it after the unlock of step (2) firing action, lights a fire and believes to row's hydrogen burning that step (1) programmable logic controller (PLC) PLC is generated Number, step (3) hydrogen burning ignition signal and step (4) network arranged by the external system that digital data acquisition module DI module acquires Hydrogen burning ignition signal is arranged, it is automatic to execute two from three logic judgment, that is, receive step (1) programmable logic controller (PLC) PLC generation Row's hydrogen burning ignition signal, row's hydrogen burning for acquire from external system by digital data acquisition module DI module of step (3) lights a fire More than two signals in signal and step (4) network row's hydrogen burning ignition signal then determine that arranging hydrogen burning ignition signal has Effect, that is, the row's of progress hydrogen burning are lighted a fire.
2. one kind according to claim 1 is highly reliable to penetrate preceding timing action triggers method, it is characterised in that: the step (1) the programmable logic controller (PLC) PLC self-clocking function in can be according to the accuracy class requirement that timing acts, Selection utilization Programmable logic controller (PLC) PLC internal clocking or peripheral hardware high precision clock carry out self-clocking.
3. one kind according to claim 1 is highly reliable to penetrate preceding timing action triggers method, it is characterised in that: the step (2) row's hydrogen burning igniting sequential in acts unlock instruction, for the precondition that row's hydrogen burning igniting sequential movement executes, is arranging Hydrogen burning igniting sequential movement executed unlock under conditions of, could the row's of execution hydrogen burning igniting sequential act, with the row of being promoted The safety of hydrogen burning igniting sequential movement.
CN201710464525.4A 2017-06-19 2017-06-19 It is a kind of it is highly reliable penetrate before timing action triggers method Active CN107368020B (en)

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CN113320719B (en) * 2021-05-19 2022-08-05 北京航天发射技术研究所 Design method and device for pre-shooting falling time sequence of carrier rocket gas-liquid connector

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CN202451299U (en) * 2012-02-29 2012-09-26 北京航天自动控制研究所 Ignition circuit with redundant design
CN103122807A (en) * 2013-01-16 2013-05-29 西北工业大学 Multichannel solid rocket engine ignition sequence control method
CN103901339A (en) * 2014-04-16 2014-07-02 上海航天电子通讯设备研究所 Device and method for detecting one-way reliability of carrier rocket two-out-of-three ignition circuit
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