CN105799735B - The implementation method of track circuit transmitter and fault-safety principle - Google Patents
The implementation method of track circuit transmitter and fault-safety principle Download PDFInfo
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- CN105799735B CN105799735B CN201610334257.XA CN201610334257A CN105799735B CN 105799735 B CN105799735 B CN 105799735B CN 201610334257 A CN201610334257 A CN 201610334257A CN 105799735 B CN105799735 B CN 105799735B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
- B61L1/18—Railway track circuits
- B61L1/181—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
- B61L1/18—Railway track circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
- B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
Abstract
This application provides a kind of track circuit transmitter and the implementation method of fault-safety principle, track circuit transmitter includes：First output end of controller is connected with the control signal of Waveform generator, second output end of controller is connected with safety with the first input end of gate circuit, 3rd output end of controller is connected with safety with the second input of gate circuit, and safety is connected with the first power input of Waveform generator and the control end of controlled switch respectively with the output end of gate circuit；The output end of Waveform generator is connected with the input of power amplifier, and the output end of power amplifier is connected with the first switch contact of controlled switch and the input of time inspection circuit respectively, and the output end for returning inspection circuit is connected with the input of controller；The second switch contact of controlled switch is connected with the affiliated Transmission system of track circuit.In application, by making the controlled switch of track circuit transmitter be no longer limited to safety-type controlled switch (such as gravity-type relay) with upper type.
Description
Technical field
The application is related to track circuit field, the realization of more particularly to a kind of track circuit transmitter and fault-safety principle
Method.
Background technology
At present, it is many that rail is divided into using method mechanically or electrically by different sections, rail is set on each section
Road circuit, to ensure railway operation safety.Wherein, track circuit transmitter is a part for track circuit, is arranged on section
One end, for exporting the signal related to railway operation safety, sets track circuit receiver to detect rail in the other end of section
The signal for the railway operation safety correlation that road circuit transmitter is sent, to judge that rail section is idle or takes, and judgement is
It is no broken rail occur.
Due to track circuit transmitter before the signal that output is related to railway operation safety, it is necessary to output and iron
The related signal of road traffic safety and equipment carry out fault self-checking in itself, in fault-free, export related to railway operation safety
Signal, when there is failure, the output of the signal related to railway operation safety need to be cut off, therefore current track circuit is sent
Response type fail-safe structure being used the structure of device, as shown in figure 1, track circuit transmitter includes more：Controller, safety with
Gate circuit, Waveform generator, power amplifier, controlled switch and time inspection circuit.The ripple that Waveform generator is sent according to controller
Shape generation order generation specific waveforms signal, and export the spy generated to power amplifier, power amplifier to Waveform generator
Determine waveform signal and carry out power amplification, power output amplified signal by returning inspection circuit collection power amplified signal, and is sent to control
Device processed, controller extracts signal parameter and judges whether signal parameter meets index request and whether the transmitter device runs
Normally, if so, output two path control signal is to safety and gate circuit, if it is not, not outputing control signals to safety and gate circuit, pacify
Entirely with gate circuit when receiving two path control signal, output drive signal to controlled switch, control controlled switch 1 contact and
2 contacts are turned on, power output amplified signal, and safety is not with gate circuit when receiving two path control signal, and the 1 of controlled switch connects
Point and 2 contacts disconnect, not power output amplified signal, i.e., when there is failure, cut off the signal related to railway operation safety
Output, it is ensured that will not be received by track circuit receiver or mobile unit track circuit transmitter transmission it is wrong with
The related signal of railway operation safety, it is to avoid track circuit receiver or mobile unit carry out the identification of mistake, it is ensured that railway row
Car safety.It can be seen that, controlled switch carries the function of safety cut-off.
But, in order that controlled switch can have fail-safe cut-out, it is necessary to will be controlled in track circuit transmitter
Switch the probability sticked together to be preferably minimized, therefore typically use safety-type controlled switch, such as gravity-type relay or Europe superscript peace
Holotype relay, but the volume of gravity-type relay is big, therefore the overall volume of increase track circuit transmitter.And Europe superscript is pacified
Although holotype relay small volume, price is high, causes track circuit transmitter cost high.Also, made using relay
The application environment of track circuit transmitter can be limited during for controlled switch, can not such as be used in strong vibration environment.
The content of the invention
In order to solve the above technical problems, the embodiment of the present application provides a kind of track circuit transmitter and fault-safety principle
Implementation method so that the controlled switch of track circuit transmitter is no longer limited to safety-type controlled switch (such as gravity-type relay
Device), technical scheme is as follows：
A kind of track circuit transmitter, including：Controller, safety and gate circuit, Waveform generator, power amplifier, return
Examine circuit and controlled switch；
First output end of the controller is connected with the control signal of the Waveform generator, and the of the controller
Two output ends are connected with the safety with the first input end of gate circuit, the 3rd output end of the controller and the safety with
Second input of gate circuit is connected, the first power supply of the output end of the safety and gate circuit respectively with the Waveform generator
Input is connected with the control end of the controlled switch；
The output end of the Waveform generator is connected with the input of the power amplifier, the power amplifier it is defeated
Go out input of the end respectively with the first switch contact of the controlled switch and described time inspection circuit to be connected, examine circuit described time
Output end is connected with the input of the controller；
The second switch contact of the controlled switch is connected with the affiliated Transmission system of the track circuit；
The controller, for sending waveform generation order to the Waveform generator, and receives described time inspection circuit
Second waveform signal of the power amplifier output of collection and the signal parameter for extracting second waveform signal, judge institute
State signal parameter whether meet index request and the track circuit transmitter whether normal operation, if so, output first is controlled
Signal is to the first input end and the second control signal of output of the safety and gate circuit to the second of the safety and gate circuit
Input, if it is not, the operation without exporting first control signal and second control signal；
The safety and gate circuit, it is defeated for when receiving first control signal and second control signal
Go out drive signal to the first power input of the Waveform generator and the control end of the controlled switch；
The Waveform generator, for receiving the drive signal, when powering normal work by the drive signal,
According to waveform generation order generation first waveform signal, and the first waveform signal is exported to the power amplifier；
The power amplifier, for carrying out power amplification to the first waveform signal, obtains the second waveform signal, and
Export second waveform signal；
Described time inspection circuit, for gathering second waveform signal, and by the second waveform signal collected export to
The controller；
The controlled switch, for when receiving the drive signal, the first switch contact to be opened with described second
Coila is turned on, and exports second waveform signal to the affiliated Transmission system of the track circuit, the driving is not being received
During signal, the first switch contact disconnects with the second switch contact.
It is preferred that, the Waveform generator includes：First waveform generative circuit, the second waveform generating circuit, the first isolation
Device and the second isolator；
The input of the first waveform generative circuit as the Waveform generator control signal；
The output end of the first waveform generative circuit is connected with the input of first isolator, first isolation
The output end of device is connected with the input of second isolator, and the output end of second isolator is given birth to second waveform
Input into circuit is connected；
The input of second isolator as the Waveform generator the first power input；
The output end of second waveform generating circuit as the Waveform generator output end.
It is preferred that, first isolator is the first optocoupler, and second isolator is the second optocoupler；
The Waveform generator also includes：First resistor, second resistance, 3rd resistor and the 4th resistance；
The input of the first waveform generative circuit as the Waveform generator control signal；
The output end of the first waveform generative circuit is connected with the first end of the first resistor, the first resistor
Second end is connected with the first input end of first optocoupler, the second input end grounding of first optocoupler, first light
First output end of coupling is connected with the second input of second optocoupler, the second output end of first optocoupler and the peace
It is connected entirely with the first sub- output end of gate circuit；
Second input of second optocoupler is connected with the first end of the second resistance, and the second of the second resistance
End is connected with the safety with the second sub- output end of gate circuit, first input end and the 3rd resistor of second optocoupler
First end be connected, the second end of the 3rd resistor is connected with the safety with the second sub- output end of gate circuit, described the
First output end of two optocouplers is connected with track circuit transmitter power supply, the second output end of second optocoupler and described second
The input of waveform generating circuit is connected and passes through the 4th resistance eutral grounding；
The output end of second waveform generating circuit as the Waveform generator output end.
It is preferred that, first isolator is the first Magnetic isolation device, and second isolator is the second Magnetic isolation device.
It is preferred that, first isolator is the first appearance isolator, and second isolator is the second appearance isolator.
A kind of implementation method of track circuit transmitter fault-safety principle, including：
Controller sends waveform generation order to Waveform generator；
The controller is received back to the second waveform signal of the power amplifier output of inspection circuit collection, described second
Waveform signal is that the power amplifier generates the first waveform letter for ordering generation to the Waveform generator according to the waveform
Number carry out the obtained signal of power amplification；
The controller extracts the signal parameter of second waveform signal；
The controller judges whether the signal parameter meets index request and whether the controller equiment runs just
Often；
If so, first input end and output second control signal of the first control signal of output to the safety and gate circuit
To the safety and the second input of gate circuit, so that the safety is generated with gate circuit output drive signal to the waveform
Device and the controlled switch, make the Waveform generator export first waveform signal in normal power supply, and described controlled open
Close output second waveform signal；
If it is not, the operation without exporting first control signal and second control signal, so that the safety
With gate circuit not output drive signal.
Compared with prior art, the application has the beneficial effect that：
In this application, drive signal safety and gate circuit exported supplies Waveform generator as power supply, in control
When device judges that signal parameter meets index request and track circuit transmitter normal operation, the first control signal of output and the second control
Signal processed makes safety and gate circuit output drive signal to Waveform generator and controlled switch, waveform life to safety and gate circuit
Grow up to be a useful person normal power supply, generate first waveform signal, controlled switch turn under drive signal control, the second waveform signal of output,
When controller judges that signal parameter does not meet index request or track circuit transmitter operation exception, the first control is not exported
Signal and the second control signal make safety and gate circuit not output drive signal to safety and gate circuit, and Waveform generator loses
Working power, it is impossible to continue to output first waveform signal, and controlled switch disconnects because not receiving drive signal, makes the second ripple
Shape signal can not be exported, though controlled switch sticks together, but because Waveform generator is lost the job power supply, it is impossible to continue to output
One waveform signal, still ensures that the related waveform letter of the railway operation safety of the follow-up no longer output error of track circuit transmitter
Number, therefore can not consider that the probability that controlled switch sticks together is preferably minimized, so as to be opened using nonsafety is controlled
Close (i.e. non-gravity type relay or non-Europe superscript safety type relay), be no longer limited to the controlled switch of track circuit transmitter
Safety-type controlled switch (such as gravity-type relay), and the cost of track circuit transmitter is reduced, reduce track circuit
Requirement of the transmitter to use environment vibration condition.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the present application, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present application, for
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is a kind of logical construction schematic diagram of track circuit transmitter in the prior art；
Fig. 2 is a kind of logical construction schematic diagram for the track circuit transmitter that the application is provided；
Fig. 3 is a kind of logical construction schematic diagram for the Waveform generator that the application is provided；
Fig. 4 is another logical construction schematic diagram for the Waveform generator that the application is provided；
Fig. 5 is a kind of flow chart for the track circuit transmitter fault-safety principle implementation method that the application is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of the application protection.
Embodiment one
Fig. 2 is referred to, a kind of logical construction schematic diagram of the track circuit transmitter provided it illustrates the application, track
Circuit transmitter includes：Controller 11, safety and gate circuit 12, Waveform generator 13, power amplifier 14, return inspection circuit 15 and
Controlled switch 16.
First output end of the controller 11 is connected with the control signal of the Waveform generator 13, the controller
11 the second output end is connected with the safety with the first input end of gate circuit 12, the 3rd output end of the controller 11 with
The safety is connected with the second input of gate circuit 12, and the safety and the output end of gate circuit 12 are given birth to the waveform respectively
13 the first power input of growing up to be a useful person is connected with the control end of the controlled switch 16.
The output end of the Waveform generator 13 is connected with the input of the power amplifier 14, the power amplifier
Input of 14 output end respectively with the first switch contact 1 of the controlled switch 16 and described time inspection circuit 15 is connected, institute
The output end for stating back inspection circuit 15 is connected with the input of the controller 11.
The second switch contact 2 of the controlled switch 16 is connected with the affiliated Transmission system of track circuit.
The controller 11, for sending waveform generation order to the Waveform generator 13, and receives described time inspection
Second waveform signal of the power amplifier output that circuit 15 is gathered and the signal parameter for extracting second waveform signal, and sentence
The signal parameter that breaks whether meet index request and the track circuit transmitter whether normal operation, if so, output first
Control signal is to the first input end and the second control signal of output of the safety and gate circuit 12 to the safety and gate circuit
12 the second input, if it is not, the operation without exporting first control signal and second control signal.
Wherein, the second waveform signal that power amplifier 14 is exported is what Waveform generator 13 was sent according to controller 11
The first waveform signal of waveform generation order generation carries out the signal obtained after power amplification.
Wherein, the second output end of controller 11 exports the first control signal, the 3rd output end output second of controller
Control signal.
In the present embodiment, the signal for returning the inspection collection of circuit 15 is the second waveform signal exported from power amplifier 14.
Controller 11 extracts and judges whether signal parameter (such as frequency and amplitude) meets index request.
In the present embodiment, controller 11 judge track circuit transmitter whether the detailed process of normal operation can with but not
Be confined to for：Judge whether RAM in controller 11 (random access memory, random access memory) read-writes are normal,
Or judge whether the supply voltage of track circuit transmitter is normal.
The safety and gate circuit 12, for when receiving first control signal and second control signal,
Output drive signal is to the first power input of the Waveform generator 13 and the control end of the controlled switch 16.
The Waveform generator 13, for receiving the drive signal, is powered normal work by the drive signal
When, according to waveform generation order generation first waveform signal, and the first waveform signal is exported to the power amplification
Device 14.
The power amplifier 14, for carrying out power amplification to the first waveform signal, obtains the second waveform signal,
And export second waveform signal.
Described time inspection circuit 15, for gather second waveform signal and by the second waveform signal collected export to
The controller 11.
The controlled switch 16, for when receiving the drive signal, the first switch contact and described second
Make and break contact is turned on, and exports second waveform signal to the affiliated Transmission system of the track circuit, the drive is not being received
During dynamic signal, the first switch contact disconnects with the second switch contact.
In track circuit transmitter shown in Fig. 2, the drive signal that safety is exported with gate circuit 12 is supplied as power supply signal
Used to Waveform generator 13, be that whole Waveform generator 13 is powered.When safety and 12 not output drive signal of gate circuit, ripple
Shape maker 13 can not be worked due to no power supply, it is impossible to according to the waveform of controller 11 generation order generation first waveform letter
Number.Even if now power amplifier 14 is still turned in work and controlled switch 16, the noise signal quilt in track circuit transmitter
It can be output to after amplification on rail, but because the noise signal of output does not possess specific modulation signature, (such as CP-FSK is adjusted
System), noise signal will not be identified as useful information by track circuit receiver and mobile unit.Therefore, having reached makes track electricity
The purpose of road transmitter failure to the safe side side.It can be seen that, even if controlled switch 16 sticks together, track circuit transmitter is judging
When two waveform signals do not meet index request or track circuit transmitter equipment operation exception, still ensure that follow-up no longer output is wrong
The waveform signal related to traffic safety, it is to avoid track circuit receiver and mobile unit persistently receive and identify wrong letter by mistake
Breath, it is ensured that railway operation safety.
In this application, non-contact type electronic switch can be used, controlled switch 16 is substituted.
In this application, drive signal safety and gate circuit 12 exported supplies Waveform generator 13 as power supply,
When controller 11 judges that signal parameter meets index request and track circuit transmitter normal operation, output the first control signal and
Second control signal makes safety and the output drive signal of gate circuit 12 to Waveform generator 13 and controlled to safety and gate circuit 12
Switch 16, the normal power supply of Waveform generator 13 generates first waveform signal, and controlled switch 16 is turned under drive signal control,
First waveform signal is exported, judges that signal parameter does not meet index request or track circuit transmitter operation is different in controller 11
Chang Shi, the first control signal and the second control signal are not exported to safety and gate circuit 12, safety is not exported with gate circuit 12
Drive signal, Waveform generator 13 is lost the job power supply, it is impossible to continue to output first waveform signal, and controlled switch 16 is not because connecing
Receive drive signal and disconnect, the second waveform signal is not exported, though controlled switch 16 sticks together, but because of waveform generation
Device 13 is lost the job power supply, it is impossible to is continued to output first waveform signal, is still ensured that track circuit transmitter is subsequently no longer exported
The waveform signal related to traffic safety of mistake, therefore can not consider to drop to the probability that controlled switch 16 sticks together most
It is low, so as to using nonsafety controlled switch (i.e. non-gravity type relay or non-Europe superscript safety type relay), make track
The controlled switch of circuit transmitter is no longer limited to safety-type controlled switch (such as gravity-type relay), and reduces track electricity
The cost of road transmitter, reduces requirement of the track circuit transmitter to use environment vibration condition.
Fig. 3 is referred to, it illustrates a kind of logical construction schematic diagram of Waveform generator 13, Waveform generator 13 includes：
First waveform generative circuit 131, the second waveform generating circuit 132, the first isolator 133 and the second isolator 134.
The input of first waveform generative circuit 131 as the Waveform generator 13 control signal.
The first waveform generative circuit 13
1 output end is connected with the input of first isolator 133, the output end of first isolator 133 with
The input of second isolator 134 is connected, the output end of second isolator 134 and second waveform generating circuit
132 input is connected.
The input of second isolator 134 as the Waveform generator 13 the first power input.
The output end of second waveform generating circuit 132 as the Waveform generator 13 output end.
The power supply mode of Waveform generator 13 shown in Fig. 3 is compared to the waveform in the track circuit transmitter shown in Fig. 2
The power supply mode of maker 13, safety with gate circuit 12 is powered for whole Waveform generator 13, but is the first isolation
The isolator 134 of device 133 and second is powered, by switching on and off between the first isolator 133 and the second isolator 134, real
The conducting and disconnection of existing first waveform generative circuit 131 and the second waveform generating circuit 132, so as to control the Waveform generator 13 to be
No output first waveform signal.
In the present embodiment, the first isolator 133 is specifically as follows the first optocoupler P1, and the second isolator 134 specifically can be with
For the second optocoupler P2.
It is the first optocoupler P1 in the first isolator 133, when the second isolator 134 is the second optocoupler P2, Waveform generator is also
Including：First resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4, as shown in Figure 4.
The input of the first waveform generative circuit 131 as the Waveform generator 13 control signal.
The output end of the first waveform generative circuit 131 is connected with the first end of the first resistor R1, and described first
Resistance R1 the second end is connected with the first input end of the first optocoupler P1, the second input termination of the first optocoupler P1
Ground, the first output end of the first optocoupler P1 is connected with the second input of the second optocoupler P2, the first optocoupler P1
The second output end be connected with the safety with the first sub- output end of gate circuit 12.
The second input of the second optocoupler P2 is connected with the first end of the second resistance R2, the second resistance R2
The second end be connected with the safety with the second sub- output end of gate circuit 12, the first input end of the second optocoupler P2 and institute
The first end for stating 3rd resistor R3 is connected, and the second end of the 3rd resistor R3 and the safety and the second son of gate circuit 12 are defeated
Go out end to be connected, the first output end of the second optocoupler P2 is connected with track circuit transmitter power Vcc, the second optocoupler P2
The second output end be connected with the input of second waveform generating circuit 132 and and by the 4th resistance R4 be grounded.
The output end of second waveform generating circuit 132 as the Waveform generator 13 output end.
Wherein, safety is pacified with the first sub- output end and safety of gate circuit 12 with the second sub- output end composition of gate circuit 12
Entirely with the output end of gate circuit 12, the first sub- output end output drive signal positive signal of safety and gate circuit 12, safety with
Second sub- output end output drive signal negative signal of gate circuit 12.
The operation principle of Waveform generator 13 shown in Fig. 4 is as follows：
First optocoupler P1 secondary side and the second optocoupler P2 primary side are powered by safety with gate circuit 12, when safety and door
Circuit 12 not output drive signal when, the first optocoupler P1 secondary side and the second optocoupler P2 primary side is powered disappearance, the first light
Coupling P1 input signal can not be delivered to the second optocoupler P2, then the signal of first waveform generative circuit 131 can not be delivered to second
Waveform generating circuit 132, first waveform signal can not be generated, and realize the purpose of safety cut-off error signal output.
Wherein, only cause to need not move through " electrical-optical-electrical " conversion, you can realize when two optocouplers break down simultaneously
First optocoupler P1 1 pin and the second optocoupler P2 3 pin electrical connection when, be possible to appearance can not safety cut-off error signal it is defeated
Situation about going out.Due to two optocouplers simultaneously break down and the first optocoupler P1 1 pin and the second optocoupler P2 3 pin electrical connection
Probability is extremely low, therefore causes the probability that can not cut off error signal output on schedule low when two optocouplers break down simultaneously.
In the present embodiment, first isolator 133 specifically can with but be not limited to the first Magnetic isolation device, accordingly
, the second isolator 134 specifically can with but be not limited to the second Magnetic isolation device.
In the present embodiment, first isolator 133 specifically can with but be not limited to the first appearance isolator, accordingly
, the second isolator 134 specifically can with but be not limited to the second appearance isolator.
Embodiment two
It is corresponding with above-mentioned track circuit transmitter, present embodiments provide a kind of track circuit transmitter failure and be oriented to peace
Full implementation method, refers to Fig. 5, may comprise steps of：
Step S51：Controller sends waveform generation order to Waveform generator.
Step S52：The controller is received back to the second waveform signal of the power amplifier output of inspection circuit collection.
Wherein, the second waveform signal is that the power amplifier generates order to the Waveform generator according to the waveform
The first waveform signal of generation carries out the signal that power amplification is obtained.
Step S53：The controller extracts the signal parameter of second waveform signal.
Step S54：Controller judges whether the signal parameter meets index request and whether the transmitter device is transported
Row is normal.
If so, step S55 is performed, if it is not, performing step S56.
Step S55：The first control signal is exported to the first input end of the safety and gate circuit and the control of output second
Signal is to the safety and the second input of gate circuit, so that the safety and gate circuit output drive signal to the waveform
Maker and the controlled switch, make the Waveform generator export first waveform signal in normal power supply, and it is described by
Control switch output second waveform signal.
Step S56：Without exporting the operation of first control signal and second control signal, so that the peace
Entirely with gate circuit not output drive signal.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation be all between difference with other embodiment, each embodiment identical similar part mutually referring to.
For device class embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is joined
See the part explanation of embodiment of the method.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there is other identical element in the process including the key element, method, article or equipment.
The implementation method to a kind of track circuit transmitter and fault-safety principle provided herein is carried out above
It is discussed in detail, specific case used herein is set forth to the principle and embodiment of the application, above example
Illustrate that being only intended to help understands the present processes and its core concept；Simultaneously for those of ordinary skill in the art, according to
According to the thought of the application, it will change in specific embodiments and applications, in summary, this specification content
It should not be construed as the limitation to the application.
Claims (6)
1. a kind of track circuit transmitter, it is characterised in that including：Controller, safety and gate circuit, Waveform generator, power
Amplifier, time inspection circuit and controlled switch；
First output end of the controller is connected with the control signal of the Waveform generator, and the second of the controller is defeated
Go out end with the safety with the first input end of gate circuit to be connected, the 3rd output end and the safety and door electricity of the controller
Second input on road is connected, the first power input of the output end of the safety and gate circuit respectively with the Waveform generator
End is connected with the control end of the controlled switch；
The output end of the Waveform generator is connected with the input of the power amplifier, the output end of the power amplifier
The input with the first switch contact of the controlled switch and described time inspection circuit is connected respectively, the output of described time inspection circuit
End is connected with the input of the controller；
The second switch contact of the controlled switch is connected with the affiliated Transmission system of the track circuit；
The controller, for sending waveform generation order to the Waveform generator, and receives described time inspection circuit collection
Power amplifier output the second waveform signal and extract the signal parameter of second waveform signal, judge the letter
Number parameter whether meet index request and the track circuit transmitter whether normal operation, if so, the first control signal of output
To the first input end and the second control signal of output of the safety and gate circuit to the second input of the safety and gate circuit
End, if it is not, the operation without exporting first control signal and second control signal；
The safety and gate circuit, for when receiving first control signal and second control signal, output to be driven
Signal is moved to the first power input of the Waveform generator and the control end of the controlled switch；
The Waveform generator, for receiving the drive signal, when powering normal work by the drive signal, according to
The waveform generation order generation first waveform signal, and the first waveform signal is exported to the power amplifier；
The power amplifier, for carrying out power amplification to the first waveform signal, obtains the second waveform signal, and export
Second waveform signal；
Described time inspection circuit, is exported to described for gathering second waveform signal, and by the second waveform signal collected
Controller；
The controlled switch, for when receiving the drive signal, the first switch contact to connect with the second switch
Point conducting, exports second waveform signal to the affiliated Transmission system of the track circuit, the drive signal is not being received
When, the first switch contact disconnects with the second switch contact.
2. track circuit transmitter according to claim 1, it is characterised in that the Waveform generator includes：First wave
Shape generative circuit, the second waveform generating circuit, the first isolator and the second isolator；
The input of the first waveform generative circuit as the Waveform generator control signal；
The output end of the first waveform generative circuit is connected with the input of first isolator, first isolator
Output end is connected with the input of second isolator, and the output end of second isolator generates electricity with second waveform
The input on road is connected；
The input of second isolator as the Waveform generator the first power input；
The output end of second waveform generating circuit as the Waveform generator output end.
3. track circuit transmitter according to claim 2, it is characterised in that first isolator is the first optocoupler,
Second isolator is the second optocoupler；
The Waveform generator also includes：First resistor, second resistance, 3rd resistor and the 4th resistance；
The input of the first waveform generative circuit as the Waveform generator control signal；
The output end of the first waveform generative circuit is connected with the first end of the first resistor, and the second of the first resistor
End is connected with the first input end of first optocoupler, the second input end grounding of first optocoupler, first optocoupler
First output end is connected with the second input of second optocoupler, the second output end of first optocoupler and the safety with
First sub- output end of gate circuit is connected；
Second input of second optocoupler is connected with the first end of the second resistance, the second end of the second resistance with
The safety is connected with the second sub- output end of gate circuit, and the of the first input end of second optocoupler and the 3rd resistor
One end is connected, and the second end of the 3rd resistor is connected with the safety with the second sub- output end of gate circuit, second light
First output end of coupling is connected with track circuit transmitter power supply, the second output end of second optocoupler and second waveform
The input of generative circuit is connected and passes through the 4th resistance eutral grounding；
The output end of second waveform generating circuit as the Waveform generator output end.
4. track circuit transmitter according to claim 3, it is characterised in that first isolator replaces with the first magnetic
Isolator, second isolator replaces with the second Magnetic isolation device.
5. track circuit transmitter according to claim 3, it is characterised in that first isolator replaces with the first appearance
Isolator, second isolator replaces with the second appearance isolator.
6. a kind of implementation method of track circuit transmitter fault-safety principle, it is characterised in that including：
Controller sends waveform generation order to Waveform generator；
The controller is received back to the second waveform signal of the power amplifier output of inspection circuit collection, second waveform signal
The Waveform generator is generated according to the waveform for the power amplifier orders the first waveform signal of generation to carry out work(
The signal that rate amplification is obtained；
The controller extracts the signal parameter of second waveform signal；
The controller judge the signal parameter whether meet index request and the controller equiment whether normal operation；
If so, exporting the first control signal to the first input end of the safety and gate circuit and exporting the second control signal to institute
State the second input of safety and gate circuit so that the safety and gate circuit output drive signal to the Waveform generator and
Controlled switch, makes the Waveform generator export first waveform signal, and controlled switch output institute in normal power supply
State the second waveform signal；
If it is not, the operation without exporting first control signal and second control signal, so that the safety and door
Circuit not output drive signal.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334257.XA CN105799735B (en) | 2016-05-19 | 2016-05-19 | The implementation method of track circuit transmitter and fault-safety principle |
| EA201892652A EA037787B1 (en) | 2016-05-19 | 2017-05-16 | Track circuit transmitter, and method of realizing fail-safe capability |
| PCT/CN2017/084495 WO2017198139A1 (en) | 2016-05-19 | 2017-05-16 | Track circuit transmitter, and method of realizing fail-safe capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334257.XA CN105799735B (en) | 2016-05-19 | 2016-05-19 | The implementation method of track circuit transmitter and fault-safety principle |
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| Publication Number | Publication Date |
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| CN105799735A CN105799735A (en) | 2016-07-27 |
| CN105799735B true CN105799735B (en) | 2017-09-15 |
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| CN201610334257.XA Active CN105799735B (en) | 2016-05-19 | 2016-05-19 | The implementation method of track circuit transmitter and fault-safety principle |
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| Country | Link |
|---|---|
| CN (1) | CN105799735B (en) |
| EA (1) | EA037787B1 (en) |
| WO (1) | WO2017198139A1 (en) |
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| CN105799735B (en) * | 2016-05-19 | 2017-09-15 | 北京全路通信信号研究设计院集团有限公司 | The implementation method of track circuit transmitter and fault-safety principle |
| CN108657224B (en) * | 2018-05-08 | 2020-12-22 | 北京全路通信信号研究设计院集团有限公司 | Signal generator, signal generating method, signal generating equipment and computer program product |
| CN110143220B (en) * | 2019-05-27 | 2024-01-16 | 固安信通信号技术股份有限公司 | Safe type track signal transmitter |
| CN110422203A (en) * | 2019-07-23 | 2019-11-08 | 黑龙江瑞兴科技股份有限公司 | A kind of communication code non-insulated track circuit equipment based on contactless |
| CN111641431B (en) * | 2019-11-08 | 2022-04-05 | 广州视源电子科技股份有限公司 | Data transmission method and data transmission equipment |
| CN113120035B (en) * | 2021-06-17 | 2021-09-07 | 北京全路通信信号研究设计院集团有限公司 | Point type train control vehicle-mounted system and train control method |
| CN115140119B (en) * | 2022-07-15 | 2023-12-01 | 中国铁道科学研究院集团有限公司 | Switch indication controller for station ground control system |
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| US9391820B2 (en) * | 2012-11-01 | 2016-07-12 | Alstom Transport Technologies | Railway code generation and signaling system and method |
| CN103107817B (en) * | 2013-01-16 | 2015-03-25 | 北京全路通信信号研究设计院有限公司 | Mixed signal transmitter of pulse signal and frequency-shift signal |
| CN103552486B (en) * | 2013-11-13 | 2016-01-20 | 北京全路通信信号研究设计院集团有限公司 | A kind of track circuit |
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2017
- 2017-05-16 EA EA201892652A patent/EA037787B1/en unknown
- 2017-05-16 WO PCT/CN2017/084495 patent/WO2017198139A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105799735A (en) | 2016-07-27 |
| WO2017198139A1 (en) | 2017-11-23 |
| EA037787B1 (en) | 2021-05-21 |
| EA201892652A1 (en) | 2019-04-30 |
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