CN108137071B - Contact input control device - Google Patents
Contact input control device Download PDFInfo
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- CN108137071B CN108137071B CN201680058163.2A CN201680058163A CN108137071B CN 108137071 B CN108137071 B CN 108137071B CN 201680058163 A CN201680058163 A CN 201680058163A CN 108137071 B CN108137071 B CN 108137071B
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- 238000000265 homogenisation Methods 0.000 description 2
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- 230000003287 optical effect Effects 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L19/00—Arrangements for interlocking between points and signals by means of a single interlocking device, e.g. central control
- B61L19/06—Interlocking devices having electrical operation
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
Contact input control device (1) includes 1 or more contact input portion (2) connecting with input contact (N), 1 control unit (4) and 1 group or more of the contact input portion group (3) comprising contact input portion (2), control unit (4) has FB signal input part (4d), and the FB signal input part (4d) inputs FB input address signal (S3 ') from input control signal output section (4b) input FB input control signal (S2 ') and from input address decoding signals portion (4c).Determine whether all groups of FB input control signal (S2 ') for having been enter into FB signal input part (4d) and all groups of the input control signal (S2) exported from input control signal output section (4b) are consistent.It is determined as the failure of control unit (4) in the case of inconsistencies.
Description
Technical field
The present invention relates to a kind of electronic interlocking system (electronic of such as railway signal security control
Interlocking system) etc. used in contact input control device.
Background technique
A kind of electronic interlocking device is used in railway territory, the electronic interlocking device is in order to making the safe and effective rate of train
Operation, and to the certain sequence of the operation setting between railway signal or goat etc. and limitation.In order to make the electronics
Interlock obtains the action state of the field devices such as railway signal or goat via relay, using in patent document 1
Disclosed input control device.
In the input control device of patent document 1, from DC power supply via indicate field device action state opening/
The input contact of closed state and be connected to 2 photo-couplers.The input contact of these built-in photo-couplers by control unit with
The terminal connection of input/output signal is received and dispatched, and is directed to the control signal from control unit, and responds contact input signal, thus
Can determine in control unit input contact opening state i.e. the state of contact input or closed state do not have contact input
State.
Moreover, can also replace the input control device of patent document 1, and use shown in the block circuit diagram of Fig. 5
The input control device 1 for being connected in parallel concatenated photo-coupler P1, P2 and resistance R2 relative to resistance R1.Moreover, such as Fig. 6
Block circuit diagram shown in, built-in multiple contact inputs that input contact N is connected to each input unit can be also set
The contact input portion group 3 in portion 2, and then multiple contact input portions group 3 is connected to a control unit 4 and is used.
The contact input of contact input signal of the input from contact input portion group 3 is included in control unit 4 shown in fig. 6
Signal input part 4a, the input control signal output section 4b and docking point of the output input control signal of docking point input unit group 3 are defeated
Enter the input address decoding signals portion 4c of 3 transmission group input address signal of portion's group.
Fig. 7 is defeated to specific one specific contact input portion group 3 ' judgement in existing multiple contact input portions group 3
Enter to contact input portion 2 input contact N open/closed state when control unit 4 flow chart.
In step s1 ', to the L (Low of 3 ' output contact input control device signal of specific contact input portion group；It is low) level
Input control signal, to other contact input portion groups 3 export H (High；It is high) input control signal of level, in step s11 '
Whether the contact input signal for determining the input contact N from specific contact input portion group 3 ' is L level.
In step s2 ', in step s11 ' the contact input signal of specific contact input portion group 3 ' be L level the case where
Under, the input control signal of H level is exported to specific contact input portion group 3 ', to other contact input portion groups 3 output L level
Input control signal, the middle contact input signal for determining the input contact N from specific contact input portion group 3 ' of step s21 ' are
No is H level signal.
In step s3 ', the contact input signal of specific contact input portion group 3 ' is the feelings of H level signal in step s21 '
Under condition, to the input control signal of specific contact input portion group 3 ' and other contact input portion groups 3 output L level, step s31 '
Whether the middle contact input signal for determining the input contact N from specific contact input portion group 3 ' is L level signal.
In all y (YES) of judgement of step s1 ', s2 ', the step s11 ' of s3 ', s21 ', s31 ', i.e. unanimous circumstances
Under, it can be determined that the input contact N of specific contact input portion group 3 ' is closed state.
Moreover, can determine the contact of specific contact input portion group 3 ' in the case where being n (no) in any determination processing
The failure of input unit 2 or the opening state etc. for inputting contact N.Moreover, successively carrying out these steps for each contact input portion group 3
The determination processing of rapid s1 ' to s3 '.
Timing diagram in the case where being closed state Fig. 8 shows the input contact N of specific specific contact input portion group 3 '.
In addition, the processing pair with the input opportunity t3 of the control unit of Fig. 84 respectively of the determination processing of the step s11 ' of Fig. 7, s21 ', s31 '
It answers.
In contact input portion 2 shown in fig. 5, the input control signal of L level is received in the case where input contact N is closed state
When, electric current Ia utilizes resistance R1 and resistance R2 flow direction input contact N.On the other hand, it is received in the case where input contact N is closed state
When the input control signal of H level, electric current Ib utilizes resistance R1 flow direction input contact N.
In general, because being set as R1:R2=1:2, so electric current Ia: electric current Ib=1:3.Moreover, for example setting number will be organized
1 input contact N and contact input portion 2 is respectively configured in contact input portion group 3 for m, and calculates these all input contact N
It is set as inputting the contact electric current aggregate value flowed in contact N in the case where closed state.
The input control signal of the specific contact input portion group 3 ' of step s1 ' is being set as L level, by other contact inputs
When the input control signal of portion's group 3 is set as H level, contact electric current is as follows.
Contact electric current=Ia of specific contact input portion group 3 '
The contact electric current of other contact input portion groups 3=(m-1) Ib
Total contact electric current (s1 ')=Ia+ (m-1) Ib
=Ia+ (m-1) 3Ia=(3m-2) Ia
The input control signal of the specific contact input portion group 3 ' of step s2 ' is being set as H level signal, by other contacts
When the input control signal of input unit group 3 is set as L level signal, contact electric current is as follows.
Contact electric current=Ib of specific contact input portion group 3 '
The contact electric current of other contact input portion groups 3=(m-1) Ia
Total contact electric current (s2 ')=Ib+ (m-1) Ia
=3Ia+ (m-1) Ia=(m+2) Ia
The input control signal of the specific contact input portion group 3 ' of step s3 ' and other contact input portion groups 3 is being set as L
When level, contact electric current is as follows.
Contact electric current=Ia of specific contact input portion group 3 '
The contact electric current of other contact input portion groups 3=(m-1) Ia
Total contact electric current (s3 ')=Ia+ (m-1) Ia=mIa
Herein, for example, if calculating the contact electric current aggregate value and variable quantity when setting m=1, m=10, m=20,
When m=1, contact electric current (s1 ') is Ia, and contact electric current (s2 ') is 3Ia, and contact electric current (s3 ') is Ia, variable quantity
It is up to 2Ia.
When m=10, contact electric current (s1 ') is 28Ia, and contact electric current (s2 ') is 12Ia, and contact electric current (s3 ') is 10Ia,
Variable quantity is up to 18Ia.
When m=20, contact electric current (s1 ') is 58Ia, and contact electric current (s2 ') is 22Ia, and contact electric current (s3 ') is 20Ia,
Variable quantity is up to 38Ia.
Existing technical literature
Patent document
Patent document 1: Japanese Patent Laid-Open 2011-42272 bulletin
Summary of the invention
[problem to be solved by the invention]
From the point of view of the contact electric current aggregate value of contact input portion group 3 and variable quantity, with the increase of group number m, contact
Electric current (s1 ') increases suddenly compared with contact electric current (s2 '), contact electric current (s3 '), and variable quantity also increases.In turn, adjoint to match
It is placed in the increase in the contact input portion 2 in contact input portion group 3, contact electric current (s1 ') and variable quantity increase suddenly.
Therefore, for the power supply device as DC power supply E, it is desirable to be able to sustain the change of the electric current increased and decreased suddenly
The load performance of change amount, and it also requires being able to bear the capacity of the contact electric current (s1 ') passed through for maximum current.Therefore,
Power supply device due to meet load performance, capacity and price increases, and power consumption also increases, thus generates and use cost
The problem of increase.
A kind of contact input control device is provided it is an object of the invention to solve described problem, contact input control
Even if device is connected to multiple input contact N, also can the variable quantity of electric current and maximum power be inhibited low, and can be true
Implement the judgement of the open/closed state and main intracorporal failure of input contact on the spot.
[technical means to solve problem]
Contact input control device of the invention for reaching the purpose is characterized in that including: contact input portion
Group comprising 1 or more contact input portion and has the edge-triggered circuit connecting with the contact input portion；And 1 control unit,
It is connect with 1 or more contact input portion group；The contact input portion includes: via the direct current outside input contact connection
The junction voltage input terminal of the positive side of power supply, connects the negative input terminal of the negative side of the DC power supply, touches to the edge
The output terminal of Power Generation Road output contact input signal, and the input terminal of input control signal of the input from the control unit
Son；The control unit includes: contact input signal input part, is connect from the edge-triggered circuit via data/address bus input is all
Point input signal；Input control signal output section exports input control signal to the input terminal in the contact input portion；
Input address decoding signals portion, to the edge-triggered circuit output input address signal；And FB signal input part, input
Feed back input from the input control signal output section controls signal；The edge-triggered circuit connects from the control unit
When receiving the variable signal of input address signal, the contact input signal inputted is output to institute via the data/address bus
State control unit.
[The effect of invention]
Contact input control device according to the present invention checks that the input control of docking point input unit is believed using feedback signal
Number whether correctly from control unit export, therefore ensure that safety and reliability, and realize the variation of contact input electric current
The reduction of the reduction of amount, homogenization and power consumption.
Detailed description of the invention
Fig. 1 is the block circuit diagram of contact input control device.
Fig. 2 is the circuit diagram for inputting contact and contact input portion group.
Fig. 3 is the process of control unit when determining specific contact input portion group the open/closed state of input contact
Figure.
Fig. 4 is the action timing diagram in the case that the input contact of specific contact input portion group is closed state.
Fig. 5 is the circuit diagram of the contact input control device of conventional example.
Fig. 6 is the block circuit diagram of the contact input control device of conventional example.
Fig. 7 is control when determining the specific contact input portion group of conventional example the open/closed state of input contact
The timing diagram in portion.
Timing in the case where being closed state Fig. 8 shows the input contact of the specific contact input portion group of conventional example
Figure.
Specific embodiment
Based on the embodiment illustrated in Fig. 1 to Fig. 4 come the present invention is described in detail.
Fig. 1 is the block circuit diagram of the contact input control device 1 of embodiment, and contact input control device 1 includes:
1 or more contact input portion 2 connecting with input contact N comprising the contact input portion 2 and has aftermentioned edge-triggered type electricity
The contact input portion group 3 of 1 group or more of road, and 1 control unit 4 being connect with the contact input portion group 3.
In the side of contact input control device 1, the positive and negative of DC power supply E is connected to relative to contact input portion 2
Each electrode, and docking point input unit 2 is connected to the positive side of DC power supply E via input contact N.Moreover, these inputs contact N
It is interlocked with the action state of the overground installation of the railway systems such as railway signal or goat.
Moreover, when multiple contact input portions 2 are configured at contact input portion group 3, it is in parallel even to each contact input portion 2
The positive and negative electrode of DC power supply E is connect and applies, and docking point input unit 2 connects DC power supply E's via input contact N
Positive side.It is that but multiple direct currents can also be respectively configured from a DC power supply E to each 2 branch, contact input portion in addition, in Fig. 1
Source E.
The example as epigyny device (higher-leveldevice) is connected in the other side of contact input control device 1
Such as electronic interlocking device 5.According to the status information request of poll from the electronic interlocking device 5 etc., contact input control dress
Set the information for the open/closed state for fully entering contact N that 1 response is connected, i.e. railway signal or goat etc. on the ground
The fault message occurred in the action status information of device or contact input portion 2.Alternatively, at pre-defined time intervals to electronics
The response of interlock 5 inputs the fault message of the information of the open/closed state of contact N, contact input portion 2.
Fig. 2 is the circuit diagram for indicating the internal circuit in contact input portion 2 and contact input portion group 3.Contact input portion 2
Have: via the junction voltage input terminal 2a of the positive side of input contact N connection DC power supply E, connecting the negative side of DC power supply E
Negative input terminal 2b, the output to the edge-triggered type circuit output contact input signal S1 ' for being configured at contact input portion group 3
Terminal 2c, and the input terminal 2d of input control signal S2 of the input from control unit 4.
In the inside in contact input portion 2, the photo-coupler P1 and tool of light emitting diode D1 and phototransistor T1 will be provided with
The photo-coupler P2 of preparation optical diode D2 and phototransistor T2 is connected in series and configures.From what is connect with input contact N
The positive side of the DC power supply E of junction voltage input terminal 2a via photo-coupler P1 and P2 and with from the straight of negative input terminal 2b
The negative side of galvanic electricity source E connects.
Junction voltage input terminal 2a is connected to the light-emitting diodes of the photo-coupler P1 in contact input portion 2 via resistance R1
Cathode is connected to the collector of the phototransistor T2 of photo-coupler P2 by the anode of pipe D1.The emitter-base bandgap grading of phototransistor T2 connects
It is connected to negative input terminal 2b, is connected to resistance between the tie point between resistance R1 and photo-coupler P1 and negative input terminal 2b
R2。
The collector of the phototransistor T1 of photo-coupler P1 is connected to output terminal 2c via inversion element IC1, photoelectricity
The supply voltage e of such as 5V is applied between the collector and inversion element IC1 of transistor T1 via resistance R3.Moreover, photoelectricity
The emitter-base bandgap grading of transistor T1 is connected to 0V.
Supply voltage e, light emitting diode are applied with via resistance R4 in the anode of the light emitting diode D2 of photo-coupler P2
The cathode of D2 is connected to input terminal 2d.
Input control signal S2 is set as H level in the input control signal output section 4b from control unit 4 shown in FIG. 1 and
In the case where output, L level is reversed to from H level using inversion element IC2 and is input to input terminal 2d.By the way that member will be inverted
The output of part IC2 is set as L level signal, and the light emitting diode D2 of photo-coupler P2 shines from supply voltage e streaming current.
At this time in the case where inputting contact N is closed state, electric current flows through photo-coupler P1 and P2, light emitting diode D1
It shines.Moreover, electric current flows through phototransistor T1, inversion element IC1 exports the contact input for being reversed to H level from L level
Signal S1 '.
In the case where input contact N is in an open state, no current flows through photo-coupler P1 and P2, the hair of photo-coupler P1
Optical diode D1 does not shine.Therefore, no current flows through phototransistor T1, and inversion element IC1 will be reversed to L electricity from H level
Flat contact input signal S1 ' is exported from output terminal 2c.
Contact input portion group 3 includes 1 or more contact input portion 2, and has the side connecting with these contact input portions 2
Edge trigger circuit, such as edge-triggered type DFF (d type flip flop) 3a.The edge-triggered type DFF3a is using bit number as can connect
Several upper limits is connected to each input D from the output terminal 2c in contact input portion 2, and inputs contact input signal S1 '.
Moreover, the input address that edge-triggered type DFF3a will be exported from the input address decoding signals portion 4c of control unit 4
Signal S3 is input to clock CK, and the input address signal S3 inverted via inversion element IC3 is input to reversion OC.
Output data from output Q corresponding with the input D of edge-triggered type DFF3a is all contact input letters
Number S1, and be sent to contact input signal input part 4a via data/address bus, all contact input signal S1 gather with
The size of data/address bus organizes the input contact N (1-1) to (m- for including in the contact input portion group 3 that number is m as unit group
n)。
Moreover, when input address signal S3 is input to edge-triggered type from the variable signal that L level becomes H level
When the clock CK of DFF3a, the contact input signal S1 ' for having been enter into the input D of edge-triggered type DFF3a is exported from output Q.
Control unit 4 includes: contact input signal input part 4a, inputs institute from each contact input portion group 3 via data/address bus
There is contact input signal S1；Input control signal output section 4b, each contact input portion 2 in docking point input unit group 3 it is defeated
Enter terminal 2d output input control signal S2；Input address decoding signals portion 4c, the edge-triggered in docking point input unit group 3
Type DFF exports input address signal S3；And FB signal input part 4d, it is defeated from input control signal output section 4b input feedback (FB)
Enter to control signal S2 ' and inputs FB input address signal S3 ' from input address decoding signals portion 4c.
The input control signal output section 4b of control unit 4 has for each contact input portion group 3 via inversion element IC2
Export input control signal S2 output interface, input control signal S2 using inversion element IC2 reversion after, branch and it is defeated
The input terminal 2d in each contact input portion 2 that contact input portion group 3 is included is arrived out.Meanwhile these contact input portions will be fed back
The resulting FB input control signal S2 ' of input control signal S2 of group 3 is output to FB signal input part 4d.
The input address decoding signals portion 4c of control unit 4 has: exporting input address for each contact input portion group 3
The output interface of signal S3, and 1 input interface to FB signal input part 4d output FB input address signal S3 '.
The FB signal input part 4d of control unit 4 has: input interface inputs defeated from input control signal output section 4b respectively
The FB input control signal S2 ' of contact input portion group 3 out；And 1 input interface, it inputs from input address decoding signals portion
The FB input address signal S3 ' of 4c output.
Fig. 3 is to determine specific one specific contact input portion group 3 ' in multiple contact input portions group 3 input contact N
Open/closed state when control unit 4 flow chart, Fig. 4 indicate specific contact input portion group 3 ' input contact be set as closing
Timing diagram in the case where conjunction state.
In the action timing diagram of Fig. 4 that these time shafts are set as to horizontal axis, when t1, t2, t4 indicate the output of control unit 4
Machine, t3, t5 indicate the input opportunity of control unit 4.S1 to s3 indicates each step of the processing of control unit 4, the d indication circuit in figure
Movement delay.Moreover, the step s1 to s3 of the step s1 to s3 and Fig. 4 of Fig. 3 is respectively corresponded.
Input control signal S2, the FB input address signal that output opportunity t1, t2, t4 of control unit 4 in Fig. 4 are carried out
The H level of S3 ' or input address signal S3/L level signal output processing are preset, and are exported according to each output opportunity
Input control signal S2, FB input address signal S3 ' or input address signal S3.
Then, control unit 4 carries out FB input control signal S2 ', all contact input signal S1 in input opportunity t3, t5
Input processing can determine the failure of the open/closed state for inputting contact N and contact input portion 2 or control unit 4.
In step s11 in step s1, in output opportunity t1 from input control signal output section 4b to all groups of contact
Input unit group 3 exports the output data that input control signal S2 is set as to L level signal.
FB input address signal S3 ' is switched to H level from L level signal in output opportunity t2 by the step s12 in step s1
Signal and from input address decoding signals portion 4c export.Then, in the state that FB input address signal S3 ' is H level signal
Input opportunity t3, determine to have been enter into all groups of the FB input control signal S2 ' of FB signal input part 4d with from input
Whether all groups of input control signal S2 for controlling signal output section 4b output is consistent.
It, can be using the input of FB signal input part 4d come in confirmation input control signal output section 4b according to step s12
Whether the output data to be exported is practical to be exported.In the case of inconsistencies, it is believed that input control signal output section 4b's etc.
Output interface breaks down.
Input address signal S3 is switched to H level letter from L level signal in output opportunity t4 by the step s13 in step s1
Number and be only output to specific contact input portion group 3 '.
Then, in the input opportunity t5 of the state of the H level signal of input address signal S3, will own via data/address bus
Contact input signal S1 is input to contact input signal input part 4a, includes in all contact input signal S1 that judgement is inputted
Specific contact input portion group 3 ' in the contact input signal S1 " in contact input portion 2 whether be L level signal.It is defeated in contact
Step s2 is entered in the case where entering signal S1 " for L level signal, for H level signal, is determined as specific contact
The failure that contact input portion 2 in input unit group 3 ' waits.
If the contact input portion 2 in specific contact input portion group 3 ' is normal, relative to defeated from input control signal
The input control signal S2 of portion 4b is the output of L level signal out, and the photo-coupler P1 and P2 in contact input portion 2 are inactive, because
And contact input signal S1 " must become L level signal.
On the contrary, in the case where contact input signal S1 " is H level signal, it is believed that be that H occurs in contact input portion 2
In conducting side event occurs for the H level persistent fault of the output abnormality of level signal, such as the phototransistor T2 of photo-coupler P2
Barrier and electric current flowed to always from DC power supply E via resistance R1 contact input portion 2 junction voltage input terminal 2a failure.
Step s21 in step s2 is in output opportunity t1, from input control signal output section 4b to specific contact input portion
3 ' output H level signal of group, the input control signal S2 of L level signal is set as to the output of other contact input portion groups 3.
Step s22 in step s2 is in the same manner as step s12, in output opportunity t2, by FB input address signal S3 ' from L
Level signal switchs to H level signal and exports from input address decoding signals portion 4c.Then, in FB input address signal S3 '
For the input opportunity t3 of the state of H level signal, all groups of FB input control for having been enter into FB signal input part 4d is determined
Whether signal S2 ' and all groups of the input control signal S2 exported from input control signal output section 4b are consistent.Different
In the case where cause, it is believed that the output interface of input control signal output section 4b etc. breaks down.
Input address signal S3 is switched to H level letter from L level signal in output opportunity t4 by the step s23 in step s2
Number and be only output to specific contact input portion group 3 '.
Then, in the input opportunity t5 of the state of the H level signal of input address signal S3, will own via data/address bus
Contact input signal S1 is input to contact input signal input part 4a, includes in all contact input signal S1 that judgement is inputted
Specific contact input portion group 3 ' in the contact input signal S1 " in contact input portion 2 whether be H level.In addition, about output
Opportunity t2, input opportunity t5, consider the delay time d of circuit to determine.
Step s3 is entered in the case where contact input signal S1 " is H level signal, for L level signal the case where
Under, determine that the input contact N connecting with the contact input portion 2 in specific contact input portion group 3 ' is in an open state either contact
The failure of input unit 2 etc..
In the case where inputting contact N is closed state, connect using the output that input control signal S2 is H level signal
The photo-coupler P1 and P2 of point input unit 2 start, in the specific contact input portion group 3 ' for including in all contact input signal S1
Contact input portion 2 contact input signal S1 " be H level signal.On the contrary, in the case where input contact N is in an open state,
The photo-coupler P1 and P2 in contact input portion 2 are inactive, and contact input signal S1 " is L level signal.
However, it is believed that may have following failure in the input of the contact input signal S1 " of L level signal, that is, except input
Other than contact N is in an open state, the L level persistent fault of the output abnormality of L level signal occurs in contact input portion 2, such as
The phototransistor T2 of photo-coupler P2 does not have in non-conduction side failure, the junction voltage input terminal 2a in contact input portion 2
Any electric current flows to the failure of photo-coupler P1 and P2 from DC power supply E.
Step s31 in step s3 is in the same manner as step s11, in output opportunity t1, from input control signal output section 4b
All groups of contact input portion groups 3 are exported with the output data that input control signal S2 is set as to L level signal.
Step s32 in step s3 is in the same manner as step s12, in output opportunity t2, by FB input address signal S3 ' from L
Level signal switchs to H level signal and exports from input address decoding signals portion 4c.
In the input opportunity t3 for the state that FB input address signal S3 ' is H level signal, it is defeated that judgement has been enter into FB signal
Enter all groups of the FB input control signal S2 ' of portion 4d and all groups of the input exported from input control signal output section 4b
Whether consistent control signal S2.In the case of inconsistencies, it is believed that the output interface of input control signal output section 4b etc. occurs
Failure etc..
Input address signal S3 is switched to H level letter from L level signal in output opportunity t4 by the step s33 in step s3
Number and be only output to specific contact input portion group 3 '.Then, in the input of the state of the H level signal of input address signal S3
All contact input signal S1 are input to contact input signal input part 4a via data/address bus by machine t5, what judgement was inputted
The contact input signal S1 " in the contact input portion 2 in specific contact input portion group 3 ' for including in all contact input signal S1
It whether is L level signal.In addition, considering the delay time d of circuit about output opportunity t2, input opportunity t5 to determine.
In the case where contact input signal S1 " is L level signal, determine and the contact in specific contact input portion group 3 '
The input contact N that input unit 2 connects is closed state.For H level signal, in the same manner as step s13, judgement is
The H levels persistent faults such as the output abnormality of H level signal occur in the contact input portion 2 in specific contact input portion group 3 '.
The processing of these steps s1 to s3 is successively carried out as unit of the contact input portion group 3.
Then, the reduction of contact electric current aggregate value and variable quantity in the case where the processing for having carried out step s1 to s3 is imitated
Fruit is illustrated.In contact input portion 2, when receiving the input control signal S2 of L level under inputting contact N and being closed state,
Electric current Ia utilizes resistance R1 and resistance R2 flow direction input contact N.On the other hand, H electricity is received in the case where input contact N is closed state
When flat input control signal S2, electric current Ib utilizes resistance R1 flow direction input contact N.In the case where being set as R1:R2=1:2,
Electric current Ia: electric current Ib=1:3.
For example, 1 input contact N and contact input portion 2 is respectively configured in the contact input portion group 3 that will organize number and be set as m,
And it calculates these all input contact N and is set as inputting the contact electric current aggregate value flowed in contact N in the case where closed state.
It is set as by the input control signal S2 of the specific contact input portion group 3 ' of step s1 and other contact input portion groups 3
When L level, contact electric current is as follows.
Contact electric current=Ia of specific contact input portion group 3 '
The contact electric current of other contact input portion groups 3=(m-1) Ia
Total contact electric current (s1)=Ia+ (m-1) Ia=mIa
The input control signal of the specific contact input portion group 3 ' of step s2 is being set as H level, by other contact inputs
When the input control signal S2 of portion's group 3 is set as L level, contact electric current is as follows.
Contact electric current=Ib of specific contact input portion group 3 '
The contact electric current of other contact input portion groups 3=(m-1) Ia
Total contact electric current (s2)=Ib+ (m-1) Ia=(m+2) Ia
It is set as by the input control signal S2 of the specific contact input portion group 3 ' of step s3 and other contact input portion groups 3
When L level, contact electric current is as follows.
Contact electric current=Ia of specific contact input portion group 3 '
The contact electric current of other contact input portion groups 3=(m-1) Ia
Total contact electric current (s3)=Ia+ (m-1) Ia=mIa
Herein, for example, if calculating the contact electric current aggregate value and variable quantity when setting m=1, m=10, m=20,
When m=1, contact electric current (s1) is Ia, and contact electric current (s2) is 3Ia, and contact electric current (s3) is Ia, and variable quantity is maximum
For 2Ia.
When m=10, contact electric current (s1) is 10Ia, and contact electric current (s2) is 12Ia, and contact electric current (s3) is 10Ia, variation
Amount is up to 2Ia
When m=20, contact electric current (s1) is 20Ia, and contact electric current (s2) is 22Ia, and contact electric current (s3) is 20Ia, variation
Amount is up to 2Ia.
According to the above description, it can be seen that, compared to existing contact electric current aggregate value, contact electric current aggregate value of the invention
Contact electric current (s1) be greatly decreased, relative to a group increase of number m, proportionate relationship is set up.Moreover, about contact electric current aggregate value
Variable quantity, unrelated with group increase of number m, variable quantity becomes uniform.
As a result, in the power supply device as DC power supply E, compared with former, the restriction of load performance or capacity is delayed
With power consumption also reduces, it is thus possible to reduce use cost.
In addition, determining the closed state for inputting contact N using step s1 to s3 in the present embodiment, can also being used only
Step s1, s2 or be used only step s2, s3.It is to handle as follows, that is, in step s23 in the case where step s1, s2 is used only
Contact input signal S1 " be to be judged to inputting the closed state of contact N in the case where H level.Moreover, step is used only
It in the case where s2, s3, is handled since step s21.
In the present embodiment, compared with existing contact electric current aggregate value and variable quantity, subtracting for contact electric current aggregate value is realized
Less, the reduction of the homogenization of variable quantity and power consumption.Moreover, about power supply device conventional example can be compared using current capacity
Small device, so as to inexpensively use.
In figure:
1 contact input control device
2 contact input portions
2a junction voltage input terminal
2b negative input terminal
2c output terminal
2d input terminal
3 contact input portion groups
3 ' specific contact input portion groups
3a edge-triggered type DFF
4 control units
4a contact input signal input part
4b input control signal output section
4c input address decoding signals portion
4dFB signal input part
E DC power supply
Claims (8)
1. a kind of contact input control device, which is characterized in that
Include: contact input portion group, comprising 1 or more contact input portion and there is the edge connecting with the contact input portion
Trigger circuit；And 1 control unit, it is connect with 1 or more contact input portion group；
The contact input portion includes: the junction voltage input terminal via the positive side of the DC power supply outside input contact connection
Son connects the negative input terminal of the negative side of the DC power supply, to the defeated of the edge-triggered circuit output contact input signal
Terminal out, and the input terminal of input control signal of the input from the control unit；
The control unit includes: contact input signal input part, inputs and owns via data/address bus from the edge-triggered circuit
Contact input signal；Input control signal output section, to the input terminal output input control letter in the contact input portion
Number；Input address decoding signals portion, to the edge-triggered circuit output input address signal；And FB signal input part,
It inputs the feed back input from the input control signal output section and controls signal；
The edge-triggered circuit is when receiving the variable signal of input address signal from the control unit, described in being inputted
Contact input signal is output to the control unit via the data/address bus.
2. contact input control device according to claim 1, which is characterized in that
The action state of the input contact and the overground installation of the railway system interlocks.
3. contact input control device according to claim 1 or 2, which is characterized in that
In the control unit, by the input control signal exported from the input control signal output section and from institute
The feed back input control signal for stating the input of FB signal input part is compared, and determines the failure of the control unit.
4. contact input control device according to claim 3, which is characterized in that
Multiple described connect is output to using the input control signal as L level signal from the input control signal output section
Specific one specific contact input portion group and other contact input portion groups in point input unit group, based on having been enter into described connect
The contact input signal of the specific contact input portion group in all contact input signals of point input signal input unit,
Come the output failure of the H level signal in the contact input portion being determined as in the specific contact input portion group.
5. contact input control device according to claim 4, which is characterized in that
In the case where the contact input signal of the specific contact input portion group is L level signal, believe from the input control
Number output section, is output to the specific contact input portion group using the input control signal as H level signal, and will be described
Input control signal is output to other described contact input portion groups as L level signal, based on by the contact input signal
The contact input signal of the specific contact input portion group of input unit input, to be determined as in the specific contact input portion group
The contact input portion L level signal output failure or defeated with the contact in the specific contact input portion group
The input contact for entering portion's connection is in an open state.
6. contact input control device according to claim 5, which is characterized in that
In the case where the contact input signal of the specific contact input portion group is H level signal, believe from the input control
Number output section be output to using the input control signal as L level signal the specific contact input portion group and it is described other
Contact input portion group, the contact input based on the specific contact input portion group inputted by the contact input signal input part
Signal, to determine that the input contact connecting with the contact input portion in the specific contact input portion group is closed form
State.
7. contact input control device according to claim 1, which is characterized in that
The contact input portion includes the 1st photo-coupler connecting with the output terminal and connect with the input terminal
2nd photo-coupler, the 1st photo-coupler, the 2nd photo-coupler are connected in series.
8. contact input control device according to claim 7, which is characterized in that
The junction voltage input terminal connects via the 1st photo-coupler, the 2nd photo-coupler with the negative input terminal
It connects.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015197763A JP6435250B2 (en) | 2015-10-05 | 2015-10-05 | Contact input control device |
| JP2015-197763 | 2015-10-05 | ||
| PCT/JP2016/066012 WO2017061138A1 (en) | 2015-10-05 | 2016-05-31 | Contact point input control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108137071A CN108137071A (en) | 2018-06-08 |
| CN108137071B true CN108137071B (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680058163.2A Active CN108137071B (en) | 2015-10-05 | 2016-05-31 | Contact input control device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6435250B2 (en) |
| CN (1) | CN108137071B (en) |
| WO (1) | WO2017061138A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562688A (en) * | 2004-04-13 | 2005-01-12 | 孔照云 | Intelligent contactless control device in basic equipment of railway signal |
| CN101683858A (en) * | 2008-09-26 | 2010-03-31 | 株式会社京三制作所 | Switch representing and inputting device |
| CN201590352U (en) * | 2010-01-29 | 2010-09-22 | 上海天正机电(集团)有限公司 | Novel intelligent interlocking device |
| JP2011042272A (en) * | 2009-08-21 | 2011-03-03 | Kyosan Electric Mfg Co Ltd | Device and method for controlling input of contact point |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0726762Y2 (en) * | 1990-04-06 | 1995-06-14 | 株式会社京三製作所 | Bus mismatch circuit |
-
2015
- 2015-10-05 JP JP2015197763A patent/JP6435250B2/en active Active
-
2016
- 2016-05-31 WO PCT/JP2016/066012 patent/WO2017061138A1/en active Application Filing
- 2016-05-31 CN CN201680058163.2A patent/CN108137071B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562688A (en) * | 2004-04-13 | 2005-01-12 | 孔照云 | Intelligent contactless control device in basic equipment of railway signal |
| CN101683858A (en) * | 2008-09-26 | 2010-03-31 | 株式会社京三制作所 | Switch representing and inputting device |
| JP2010076648A (en) * | 2008-09-26 | 2010-04-08 | Kyosan Electric Mfg Co Ltd | Switch display input device |
| JP2011042272A (en) * | 2009-08-21 | 2011-03-03 | Kyosan Electric Mfg Co Ltd | Device and method for controlling input of contact point |
| CN201590352U (en) * | 2010-01-29 | 2010-09-22 | 上海天正机电(集团)有限公司 | Novel intelligent interlocking device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017071238A (en) | 2017-04-13 |
| CN108137071A (en) | 2018-06-08 |
| JP6435250B2 (en) | 2018-12-05 |
| WO2017061138A1 (en) | 2017-04-13 |
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