CN109542013A - The parallel electrical anti-misoperation locking device of microcomputer - Google Patents

Abstract

The invention discloses a kind of parallel electrical anti-misoperation locking device of microcomputer, by touch screen display screen, indicator light, power supply plate, CPU board part, main dsp board part, spare dsp board part, opens into plate and output plate and form；Realize that locked loop clear logic is clear by novel closedown mode, latching logic can be checked at any time, quickly indicate specific fault point, be easily modified and repair and maintenance, at the same by changing locking simultaneously, dystopy summation is latched two kinds of closedown modes and realizes reliability under various fault conditions.Parallel microcomputer electric security device of the invention is equally reliable simultaneously with electric blocking+logic blocking mode in guarantee, has many advantages, such as convenient for quick defect elimination, convenient for management and simplified wiring.

Description

The parallel electrical anti-misoperation locking device of microcomputer

Technical field

The present invention relates to a kind of blocking devices, and in particular to a kind of parallel electrical anti-misoperation locking device of microcomputer.

Background technique

The safety when high voltage electric equipment in substation and power plant etc. is guarantee personnel operation should all be installed perfect anti-Incorrect manipulation deadlock device, with realization " five is anti-" function.Closedown mode is mostly using mechanical latching+electric blocking side at presentFormula.Wherein electric blocking mode is concatenated by the auxiliary node of the devices such as breaker, disconnecting switch, grounding switch, electromagnetic lockMode (barring condition having also needs to seal in the logic blocking condition of microcomputer control device) realizes that blocking function, locked loop are answeredIt is miscellaneous to bring great difficulty to daily management, defect elimination, maintenance work.

Existing electrical anti-error implementation is tandem, and the operation circuit of equipment is passed through cable connection string by tandemEnter barring condition, since the barring condition in each circuit is different, so the definition of the series loop in terminal block is varied, bandThe problem come is as follows:

(1) the auxiliary contact failure of either switch, disconnecting link, earthing knife-switch just will affect operation in series loop, and edge is needed to patrolThe condition of collecting is checked item by item, and difficult in maintenance, time-consuming.

(2) live drawing missing or defect elimination personnel come not carry drawing from other working sites causes troubleshooting moreDifficulty, processing difficulty increase.

(3) circuit forms rear, primary equipment operation, can not intuitively check barring condition.(especially to certain substationsOld station) that whether the barring condition in transport regulation coincide with scene physical cabling is still to be tested, more increase malfunction elimination difficulty.

(4) once being formed, if you need to change, workload is bigger in circuit, and work is complicated, cannot meet the day of substation very wellOften work uses.

(5) the logic blocking element in measure and control device is deposited when abnormal, most with the technical level of current secondary personnelThe abnormal point checked in logic blocking condition can not be transferred, producer's solution can only be relied on.

(6) in order not to cause power transmission delay indices, operation can only be unlocked under above-mentioned multiple difficulty.Equipment is sentAfter electricity to handle this defect need to wait for next time have a power failure just may be used.

(7) the anti-error specific responsibility to equipment operation management unit and the other unit for undertaking anti-error repairing do not have investigation failureAbility, defect elimination task also needs to cause managerial confusion, secondary worker tasks are numerous by the withered second protection personnel of troopWeight.

Summary of the invention

The purpose of the present invention is to provide a kind of parallel electrical anti-misoperation locking devices of microcomputer.

The technical solution for realizing the aim of the invention is as follows: a kind of parallel electrical anti-misoperation locking device of microcomputer, including touchingScreen display display screen, power supply plate, CPU board part, main dsp board part, spare dsp board part, is opened into plate and outputs plate indicator light；

Power supply plate is for DC power supply needed for 220V DC power supply is transformed to each plate；

CPU board part is used for man-machine interface management, the monitoring of communication management and main dsp board part and spare dsp board part；

Main dsp board part is opened for differentiating into whether plate input data is qualified, stores and computational discrimination logic, condition meetWhen allow to output plate outlet or it is abnormal when locking output plate and accordingly export；

Spare dsp board part function is identical as main dsp board part function, is controlled by CPU board part, can undertake portion when operating normallyDivide calculating task, puts into operation when main dsp board part failure, main dsp board part is out of service；

It opens into plate, is connected with the auxiliary node of breaker, disconnecting switch, grounding switch, electromagnetic lock, by auxiliary node positionConfidence number is converted and is transmitted to DSP plug-in unit；The auxiliary node parallel connection access of breaker, disconnecting switch, grounding switch, electromagnetic lock is openedEnter plate；

Plate is outputed, the permission signal and block signal of main dsp board part or spare dsp board part are received, control is corresponding outThe connecting and disconnecting of mouth relay, the normally opened node of exit relay are connected with the operation circuit of external equipment；

Latching logic is established: being established latching logic loop diagram by touch screen display screen, is transmitted to dsp board part by CPU board partIt saves；

Latching logic executes: it opens and dummy node signal is transmitted to dsp board part by physical node signal, CPU board part into plate,Dsp board part determines whether corresponding circuit allows to operate according to the qualification of data and the latching logic loop diagram of foundation, and controlsSystem outputs corresponding exit relay on plate, connects or cut-off the operation circuit of external equipment, realizes the operation to external equipmentThe unlocking and locking in circuit.

There are two types of data collection forms for blocking device:

Dystopy summation locking: the acquisition to a position signal, while acquiring its normally opened node and normally closed node two lettersNumber, when switch is normally opened be at the time of apposition 1, it is normally closed be 0, be denoted as (1,0)；It is normally opened when switch is in quartile be 0, it is normally closed be 1, be denoted as(0,1)；It is normal data by two signals summation of acquisition, and for 1, is not abnormal data for 1, and report malposition, lockingUsing all locked loops of the signal；

Change locking: present apparatus real-time monitoring position of the switch variation simultaneously, for the intake of some acquisition, oftenOpen, normally closed position signal should change simultaneously, be otherwise judged to abnormal displacement.

Compared with prior art, remarkable advantage of the invention are as follows: the present invention is by proposing that novel closedown mode realization is closedLock loop clear logic is clear, can check latching logic at any time, quickly indicate specific fault point, be easily modified and overhaul dimensionShield, at the same by changing locking simultaneously, dystopy summation is latched two kinds of closedown modes and realizes reliability under various fault conditions；AndConnection decline electrical-mechanical error-proof device ensure that with electric blocking+logic blocking mode it is equally reliable simultaneously, realize:(1) it is convenient for quick defect elimination；Microcomputer device accurately can quickly reflect which specific intake, and there are fault points, pass throughThe terminal block of specification defines, and service personnel can quickly find in the case where no drawings according to cable number and cable core numberAbort situation eliminates defect in time；(2) convenient for management；Since the foundation and realization of logical circuit are completed using microcomputer device, closeLock logic chart is accomplished to visualize, and administrative staff can check at any time, modify and verify the correctness of latching logic；(3) simplification connectsLine；Microcomputer device to each position signal only take one group of normally opened, normally closed signal as open into, enormously simplify physical cabling,The node for having saved auxiliary switch need to only establish figure on microcomputer device simultaneously for complex logic circuit and just realize simple sideJust；It is also time saving and energy saving for the modification of anti-mis-logical.

Detailed description of the invention

Fig. 1 is the electrical anti-misoperation locking device hardware structure diagram of parallel microcomputer.

Fig. 2 is device front schematic view.

Fig. 3 is device schematic rear view.

Fig. 4 is that typical disconnecting link is latched secondary circuit graph.

Fig. 5 is parallel mode of connection schematic diagram.

Fig. 6 is microcomputer electric security device function menu schematic diagram.

Fig. 7 is the amount of outputing definition step schematic diagram.

Fig. 8 is that circuit logic creates picture drawing.

Fig. 9 is that circuit logic creates example schematic.

Figure 10 is that logic in parallel creates example schematic.

Figure 11 is data capture logic figure.

Specific embodiment

As shown in Figures 1 to 3, a kind of electrical anti-misoperation locking device of parallel microcomputer, by touch screen display screen, indicator light, power supplyPlate, main dsp board part, spare dsp board part, is opened into plate and outputs plate composition CPU board part；Data between interior panelsIt is transmitted through internal communication bus completion, it is ensured that the reliability that data are transmitted between board.

Power supply plate is for DC power supply needed for 220V DC power supply is transformed to each plate；

CPU board part for realizing the management to whole device, man-machine interface management, communication management and main dsp board part andThe monitoring function of spare dsp board part；

Main dsp board part is opened for differentiating into whether plate input data is qualified, stores and computational discrimination logic, condition meetWhen allow to output plate outlet or it is abnormal when locking output plate and accordingly export；

Spare dsp board part function is identical as main dsp board part function, is controlled by CPU board part, can undertake portion when operating normallyDivide calculating task, puts into operation when main dsp board part failure, main dsp board part is out of service；

It opens into plate, is connected with the auxiliary node of breaker, disconnecting switch, grounding switch, electromagnetic lock, by auxiliary node positionConfidence number is converted and is transmitted to DSP plug-in unit；The auxiliary node parallel connection access of breaker, disconnecting switch, grounding switch, electromagnetic lock is openedEnter plate；

Plate is outputed, the permission signal and block signal of main dsp board part or spare dsp board part are received, control is corresponding outThe connecting and disconnecting of mouth relay, the normally opened node of exit relay are connected with the operation circuit of external equipment；

Latching logic is established: being established latching logic loop diagram by touch screen display screen, is transmitted to dsp board part by CPU board partIt saves；

Latching logic executes: it opens and dummy node signal is transmitted to dsp board part by physical node signal, CPU board part into plate,Dsp board part determines whether corresponding circuit allows to operate according to the qualification of data and the latching logic loop diagram of foundation, and controlsSystem outputs corresponding exit relay on plate, connects or cut-off the operation circuit of external equipment, realizes the operation to external equipmentThe unlocking and locking in circuit.

There are two types of data collection forms for blocking device:

Dystopy summation locking: the acquisition to a position signal, while acquiring its normally opened node and normally closed node two lettersNumber, when switch is normally opened be at the time of apposition 1, it is normally closed be 0, be denoted as (1,0)；It is normally opened when switch is in quartile be 0, it is normally closed be 1, be denoted as(0,1)；It is normal data by two signals summation of acquisition, and for 1, is not abnormal data for 1, and report malposition, lockingUsing all locked loops of the signal；

Change locking: present apparatus real-time monitoring position of the switch variation simultaneously, for the intake of some acquisition, oftenOpen, normally closed position signal should change simultaneously, be otherwise judged to abnormal displacement.

Further, power supply plate is for 220V, 48V, 24V, 5V needed for 220V DC power supply is transformed to each plateDC power supply.

Further, the data between interior panels are transmitted through high performance internal communication bus and complete, it is ensured that boardBetween data transmission reliability.

Further, CPU board part is made of high performance embeded processor, memory, ethernet controller, realization pairThe management of whole device, the monitoring function of man-machine interface, communication management and main dsp board part and spare dsp board part.

Further, the physical node signal is the node signal by hard cable access device, the dummy node signalTo pass through the node signal of cable or optical fiber access device.

Further, indicator light includes run indicator, alarm indicator, unlock indicator light and locking indicator light.

In the following with reference to the drawings and specific embodiments, scheme that the present invention is further explained.

Embodiment

To illustrate the present invention, three definition are provided first:

1) tandem condition entry mode (hereinafter referred to as tandem): the operation circuit of equipment is sealed in by cable connectionThe case where barring condition (auxiliary nodes of the devices such as breaker, disconnecting switch, grounding switch, electromagnetic lock), all conditions meetLower circuit can be connected, it is electrically operated.

2) parallel condition entry mode (hereinafter referred to as parallel): by barring condition (breaker, disconnecting switch, ground connectionThe auxiliary node of the devices such as disconnecting link, electromagnetic lock) in access microcomputer device (the parallel electrical anti-misoperation locking device of microcomputer) in parallel, byMicrocomputer device establishes locked loop logic chart, and open exit relay, operation circuit only seal in the relay and go out when condition meetsMouth node.

3) parallel wiring microcomputer electric blocking mode: is realized that the mode of locking is known as microcomputer electric blocking mode.

To illustrate the present invention with the locked loop implementation citing in the following figure:

Fig. 4 show typical disconnecting link locking secondary circuit graph, in which: DL is breaker, 2G, 1GD, 3GD1 are respectively phaseThe disconnecting link answered, the present invention only discusses locking implementation, so disconnecting link concrete meaning does not elaborate, and only in rectangle frameImplementation discuss, it may be assumed that tandem is compared with parallel.

1, the parallel mode of connection

Fig. 5 show the physical cabling figure in parallel circuit.It may be noted that parallel realization needs to rely on microcomputer electricalError-proof device, which, which can be read position of the switch amount, (can pass through control cables while support the number of reader station control layer switchAccording to), corresponding locked loop can be established by graphic picture using the intake of reading, open corresponding outlet makes this when condition meetsOperation circuit obtains electric.

It is one group of configuration that parallel microcomputer electric security device, which is opened into terminal block (QD) by two, it may be assumed that open into 1 as QD1 andQD2, open into 2 be QD3 and QD4 ... and so on.

2, device picture and menu introduction

In Fig. 6, the major function of " node " is exactly to be convenient for intake with the dual name nominating of equipment according to physical cablingIt checks, transfer and manages.

" circuit " defines the amount of outputing, such as: KD1 is used as and outputs 1 ... with such for checking, establishing anti-error logical circuitIt pushes away, defining the amount of outputing is exactly to annotate the amount of outputing with Chinese character.

" real-time status is checked " is used for miscellaneous function when troubleshooting.

2.1 open into definition

In conjunction with Fig. 7, for the physical node of control cables, it will open and be set as one group into terminal two, such as: QD1, QD2 are used as and openEnter 1, QD3, QD4 are used as and open into 2 ... and so on.

For the dummy node read by interchanger, virtual terminator row is established, will equally open and be set as one group into terminal two,Such as: XQD1, XQD2, which are used as, to be opened into 1, and XQD3, XQD4 are used as and open into 2 ... and so on.

2.2 circuits are established

The Create option pop-up circuit logic, which is clicked, in " modification, the creation circuit logic " in " circuit " of menu creates pictureFace such as Fig. 8.

Below with the circuit citing that barring condition is No. 1 normally opened node of 7011 disconnecting link of main transformer, establishment process is described.

1. shown in click START button, picture such as Fig. 9, gray circles indicate starting position.

It chooses white circle to click " addition connection " button, selects 2. shown in " series connection " options screen such as Fig. 9.Point is hitExisting white box pops up intake list, the intake to be chosen, as 3. shown in such as Fig. 9 after determining.

Click 4. shown in " completion " button such as Fig. 9, gray circles expression final position.

" outputing selection " button is clicked, outlet is outputed in selection, and then Chinese character marking defines, mark conduct simultaneously after determiningThe definition title in the circuit.

After clicking " save and generate " button, which, which establishes, is completed.

The foundation with regard to shunt circuit is illustrated below.

Figure 10 1. middle black circles are selected, " addition connection " button is clicked, selects parallel connection option, blank block diagram occur, selectSelect set occur after intake Figure 10 2. in picture.

Choose Figure 10 2. in black circles, click " addition connection " button, select connectivity option, choosing dark circleWhite circle above completes connection, Figure 10 occurs 3., complete the creation of shunt circuit.

2.3 unlock

Need to unlock operation press unblock button after, pop up circuit list.The circuit to be unlocked is selected in the list of circuit,Administrative staff's password is inputted, pressing unblock button after confirmation again can unlock.

3, reliable realization mode

The summation locking of 3.1 dystopys

Acquisition for some position signal, while acquiring two signals of its normally opened node and normally closed node.It takes away into 1(QD1, QD2) citing:

When normally opened (QD1) is 1 to switch, normally closed (QD2) is 0 to be denoted as (1,0) at the time of apposition.

When switch is in quartile, normally opened (QD1) is 0, normally closed (QD2) is 1 to be denoted as (0,1).

Two signals summation into 1 acquisition will be opened, and is not abnormal data for 1, and report position different 1 to be normal dataOften, locking uses all locked loops of the signal.

3.2 change locking simultaneously

Present apparatus real-time monitoring position of the switch variation, for the intake of some acquisition, normally opened, normally closed position signalIt should change simultaneously, otherwise be judged to abnormal displacement.

It takes away and illustrates into 1 (QD1, QD2):

When switching by dividing to when closing displacement, QD1, which becomes 1 while QD2 from 0, becomes 0 from 1, and microcomputer device monitors to conjugate letterIt is that conjugate signal be 1 to 1, QD2 that number then QD1, which conjugates signal,.

If switch is by dividing to when closing displacement, QD1 is not conjugated, QD2 displacement.It is that 0, QD2 displacement signal is that then QD1, which conjugates signal,1。

If switch is by dividing to when closing displacement, QD1 displacement, QD2 is not conjugated.It is that 1, QD2 displacement signal is that then QD1, which conjugates signal,0。

The factors such as displacement when in view of difference caused by mechanism problem, setting time Δ t keep two displacement signals respectivelyTo hide extraneous factor interference (Δ t keeps only generating the signal conjugated).When device confirmation data qualifier completes acquisitionDisplacement signal is reset afterwards.

Indicate that displacement is normal, allows signal acquisition when two displacement signals are simultaneously 1.If the sum of two displacement signals is1 conjugates when indicating different, and hair displacement abnormal signal, locking uses all locked loops of the signal.In view of mechanism problem is ledThe factors such as displacement when the difference of cause, setting time Δ t1 are delayed to hide.It is recordable simultaneously to particularly point out microcomputer electric security deviceSave the last situation of change.After the completion of operating at the scene, time T can be arranged according to the actual situation is setting initial pictureThe intake of display displacement in the time set, operation operator can be after the completion of operation in the initial of microcomputer electric security deviceConfirm that each equipment has operated in place and variation is normal in picture, locked loop acquisition is opened reliable into data.

Such as the data capture logic that Figure 11 is microcomputer electric security device, only when change simultaneously, dystopy summation is 1 simultaneouslyJust allow to acquire new position signal in the case where satisfaction, is then latched when either condition is unsatisfactory for and is closed using all of abnormal signalLock loop.

Data acquisition function after failure defect elimination or when commissioning of new equipment is restored to be provided with data validation key, overhauls peopleMember can realize the normal upload of certain signal by data validation key.Data validation process is identical as unlock process.

The present invention for each open into, output and locked loop uses the dual title of equipment, Chinese character to explicitly define, makeThe title and state of each barring condition of locked loop are clear and intuitive to inquire.Locked loop succinctly draws, real-time queryFunction.The realization of locked loop is set to be easily understood, convenient for management, modification and maintenance.Parallel microcomputer electric security device usesCentral controlled mode, i.e., every section bus bar configuration one or two is asked for managing the spaced anti-misoperation locking of whole section of busTopic.

Fail-safe analysis is carried out to the electrical anti-misoperation locking device of parallel microcomputer of the invention below.

(1) fault condition is classified

The fault condition being likely to occur in actual motion is as follows:

1) outlet cable broken skin is shorted

2) switch is normally opened, normally closed logic is reversed

3) plant failure

4) it opens into wiring loosening

5) the auxiliary node mechanism bite of equipment

The mode for being shorted this kind of fault condition electric blocking+logic blocking for outlet cable broken skin can also exist, can notIt avoids completely, the checking and accepting of construction material and completion need to be reinforced, the present invention is not covered.

It should all be normal condition before putting into operation or overhaul, antilogical is deposited in the case of switching that normally opened, normally closed logic is reversedIt is that, in the human factor for checking and accepting carelessness, the present invention is not covered.

Plant failure blocking function is arranged for the factor of plant failure, when plant failure is latched all outlet ports.It sets simultaneouslyIt purchases and uses slave, device switching needs personnel to live manual operations.

The reliability under butted line loosening and two kinds of factors of mechanism bite is discussed below.

Following discussion takes away into 1 citing and switch is in coincidence, it is normally opened be 1, it is normally closed be 0 to be denoted as (1,0).

(2) wiring loosening

2.1 1 loose analysis

Occur at " 1 " (normally open position) when loosening, then position signal conjugates (0,0) by (1,0), and it is different that device should send out positionOften, conjugate abnormal signal, while be latched using this open into locked loop.

Occurring at " 0 " (normally closed position) when loosening, then position signal keeps (1,0) constant, once there is operation to generate changeReliable locking can be realized when position.

2.2 two o'clock loose analysis

Two o'clock loosening is equivalent to power supply disappearance, and signal will become (0,0) at that time, and device should send out malposition signal, and locking is adoptedWith this open into locked loop.

(3) mechanism bite

The appearance of problem occurs that Taxonomic discussion will be done below when carrying out electrical equipment operation when mechanism bite.

3.1 1 bites

When operated bite occur at " 1 ", then position signal by (1,0) conjugate (1,1), device should send out malposition,Conjugate abnormal signal, locking using this open into locked loop.

When operated bite occur at " 0 ", then position signal by (1,0) conjugate (0,0), device should send out malposition,Conjugate abnormal signal, locking using this open into locked loop.

3.2 two o'clock bites

When two o'clock bite occurs, since the nodes of locations of all signals is taken from mechanism, so any type of locking sideFormula all not can avoid misjudgment.

For the circuit only with a locality condition as locking criterion, technically electrification can be sealed in by settingOther criterions such as display or electric current avoid being latched the situation of mistake caused by such situation.

In process, microcomputer electric security device, which has, shows the function of conjugating recently, such as operator in initial interfaceCarefully verification can avoid the case where barring condition caused by such situation judges incorrectly for operation front and back.Under this solution is suitable forAll the case where not can avoid that face discusses.

(4) extreme case is analyzed

Extreme case of the present invention is wiring loosening and the simultaneous situation of mechanism bite problem.Due to no matter assortedThe bite situation and two o'clock wiring loosening of sample simultaneously there is a situation where all with two o'clock wiring loosening when it is identical, so extreme caseThe case where there are two o'clock wiring loosenings is not analyzed.Two o'clock bite is similarly also not discussed.

Only discuss that there is a situation where some bites when any is loosened below.Continue normally opened at the time of apposition when switching into 1 to openFor 1, it is normally closed be 0 to be denoted as (1,0) citing.It is divided into following 3 kinds of situations: first occurring to occur after bite to loosen (first block after pine), firstBite (first blocking after pine), loosening and bite occur after loosening, (Song Ka is simultaneously) occurs simultaneously within the Δ t time

Refer to that original state amount is normally opened, the normally closed position of " 1 " or " 0 " with " 1 " and " 0 " in lower banner.

4.1 first block after pine

4.1.1 block " 1 " pine " 0 "

Original state amount is that (1,0) becomes (1,1) due to " 1 " position bite after operation, and device should send out malposition number, pineBecome (1,0) hair displacement abnormal signal after dynamic, be able to achieve locking using this open into locked loop.

4.1.2 block " 1 " pine " 1 "

Original state amount is that (1,0) becomes (1,1) due to " 1 " position bite after operation, and device should send out malposition number, pineBecome (0,1) after moving and sends out displacement abnormal signal, though failure is still remained in the normal circuit of data, so needing locking to use shouldOpen into locked loop.

4.1.3 block " 0 " pine " 0 "

Original state amount is that (1,0) becomes (0,0) due to " 0 " position bite after operation, and device should send out malposition number, pineAfter dynamic still for (0,0) locking using this open into locked loop.

4.1.4 block " 0 " pine " 1 "

Original state amount is that (1,0) becomes (0,0) due to " 0 " position bite after operation, and device should send out malposition number, pineAfter dynamic still for (0,0) locking using this open into locked loop.

Block after 4.2 first pines

4.2.1 loose " 1 " card " 0 "

Original state amount is (1,0), is become (0,0) since " 1 " position loosens, and device should send out malposition number, loose after operationAfter dynamic still for (0,0) locking using this open into locked loop.

4.2.2 loose " 1 " card " 1 "

Original state amount is (1,0), is become (0,0) since " 1 " position loosens, and device should send out malposition number, loose after operationIt is still used though still remaining failure in the normal circuit of data so needing to be latched for (0,1) hair displacement abnormal signal after dynamicThis open into locked loop.

4.2.3 loose " 0 " card " 0 "

Original state amount be (1,0), due to " 0 " position loosen keep (1,0), become after operation (0,0) hair malposition number,Displacement abnormal signal locking using this open into locked loop.

4.2.4 loose " 0 " card " 1 "

Original state amount is (1,0), keeps (1,0) since " 0 " position loosens, operation does not become for (1,0) position stillChange, can not detect data exception.

Microcomputer electric security device cannot be escaped reliably in the case, but the problem of for mechanism bite, any lockingMode all not can avoid, identical when solution is with only generation two o'clock bite problem.

4.3 pine cards are simultaneously

4.3.1 loose " 1 " card " 0 "

Original state amount is (1,0), becomes (0,0) since " 1 " position loosens, operates displacement simultaneously in the extremely short Δ t time,After operation still be (0,0), send out malposition number, locking using this open into locked loop.

4.3.2 loose " 1 " card " 1 "

Original state amount is (1,0), becomes (0,0) since " 1 " position loosens, operates displacement simultaneously in the extremely short Δ t time,It is correct to become (0,1) data after operation, normal acquisition.Since such extreme fault rate is very low, failure in circuit willLocking is realized in subsequent operation, and is eliminated in time.

4.3.3 loose " 0 " card " 0 "

Original state amount is (1,0), keeps (1,0) since " 0 " position loosens, operates displacement simultaneously in the extremely short Δ t time,Become after operation (0,0) hair malposition number, displacement abnormal signal be latched the use open into locked loop.

4.3.4 loose " 0 " card " 1 "

Original state amount is (1,0), keeps (1,0) since " 0 " position loosens, operates displacement simultaneously in the extremely short Δ t time,Operation does not change for (1,0) position still, can not detect data exception.

Microcomputer electric security device cannot be escaped reliably in the case, but the problem of for mechanism bite, any lockingMode all not can avoid, identical when solution is with only generation two o'clock bite problem.

(5) reliability is summarized

By the discussion above it can be found that microcomputer electric security device all have under various fault ' conditions it is higher canBy property.It can reflect fault point compared with electric blocking+logic blocking mode, convenient for timely rapidly defect elimination, realize simultaneouslyMode is simple, is easy to understand grasp.Under the fault condition that both of which can not avoid completely, in process, microcomputer is electricalError-proof device, which has, shows the function of conjugating recently in initial interface, and careful verification can avoid such before and after operating such as operatorThe case where barring condition caused by situation judges incorrectly.

Since microcomputer electric security device uses while changing locking, dystopy summation locking two ways, data reliabilityFor the high position signal for suggesting background computer by reading in microcomputer electric security device, the microcomputer that operations staff checks after operation is electricalThe displacement situation of error-proof device can be completed in background computer, thus simplified operation process.

Claims (6)

1. a kind of electrical anti-misoperation locking device of parallel microcomputer, which is characterized in that including touch screen display screen, indicator light, power panelPart, main dsp board part, spare dsp board part, is opened into plate and outputs plate CPU board part；

Power supply plate is for DC power supply needed for 220V DC power supply is transformed to each plate；

CPU board part is used for man-machine interface management, the monitoring of communication management and main dsp board part and spare dsp board part；

Main dsp board part is opened for differentiating into whether plate input data is qualified, is stored simultaneously computational discrimination logic, is permitted when condition meetsLocking is outputed plate and is accordingly exported when being permitted to output plate outlet or exception；

Spare dsp board part function is identical as main dsp board part function, is controlled by CPU board part, and part can be undertaken when operating normally and is countedCalculation task puts into operation when main dsp board part failure, and main dsp board part is out of service；

It opens into plate, is connected with the auxiliary node of breaker, disconnecting switch, grounding switch, electromagnetic lock, auxiliary node position is believedIt number converts and is transmitted to DSP plug-in unit；The auxiliary node parallel connection access of breaker, disconnecting switch, grounding switch, electromagnetic lock is opened into platePart；

Output plate, receive the permission signal and block signal of main dsp board part or spare dsp board part, control corresponding outlet afterThe normally opened node of the connecting and disconnecting of electric appliance, exit relay is connected with the operation circuit of external equipment；

Latching logic is established: being established latching logic loop diagram by touch screen display screen, is transmitted to dsp board part by CPU board part and saves；

Latching logic executes: opening and dummy node signal is transmitted to dsp board part, dsp board by physical node signal, CPU board part into platePart determines whether corresponding circuit allows to operate according to the qualification of data and the latching logic loop diagram of foundation, and controls and outputThe operation circuit of external equipment is connected or cut-off to corresponding exit relay on plate, realizes to the operation circuit of external equipmentIt unlocks and is latched.

2. the electrical anti-misoperation locking device of parallel microcomputer according to claim 1, which is characterized in that blocking device uses twoKind data collection form:

Dystopy summation locking: the acquisition to a position signal, while two signals of its normally opened node and normally closed node are acquired, whenIt is 1 that switch is normally opened at the time of apposition, it is normally closed be 0, be denoted as (1,0)；It is normally opened when switch is in quartile be 0, it is normally closed be 1, be denoted as (0,1)；It is normal data by two signals summation of acquisition, and for 1, is not abnormal data for 1, and report malposition, locking usesAll locked loops of the signal；

Change locking: blocking device real-time monitoring position of the switch variation simultaneously, for the intake of some acquisition, normally opened,Normally closed position signal should change simultaneously, otherwise be judged to abnormal displacement.

3. the electrical anti-misoperation locking device of parallel microcomputer according to claim 1, which is characterized in that power supply plate is used for will220V, 48V, 24V, 5V DC power supply needed for 220V DC power supply is transformed to each plate.

4. the electrical anti-misoperation locking device of parallel microcomputer according to claim 1, which is characterized in that between interior panelsData are transmitted through high performance internal communication bus and complete, it is ensured that the reliability that data are transmitted between board.

5. the electrical anti-misoperation locking device of parallel microcomputer according to claim 1, which is characterized in that the physical node signalFor by the node signal of hard cable access device, the dummy node signal is to be believed by the node of cable or optical fiber access deviceNumber.

6. the electrical anti-misoperation locking device of parallel microcomputer according to claim 1, which is characterized in that indicator light includes operationIndicator light, alarm indicator, unlock indicator light and locking indicator light.