CN116767304B - Safe track circuit direction switching method and system - Google Patents
Safe track circuit direction switching method and system Download PDFInfo
- Publication number
- CN116767304B CN116767304B CN202311047477.0A CN202311047477A CN116767304B CN 116767304 B CN116767304 B CN 116767304B CN 202311047477 A CN202311047477 A CN 202311047477A CN 116767304 B CN116767304 B CN 116767304B
- Authority
- CN
- China
- Prior art keywords
- relay
- state
- fqj
- normally
- direction relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004891 communication Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000802 evaporation-induced self-assembly Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
- B61L1/18—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
- B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
Abstract
A method and system for switching the direction of a safe track circuit comprises the following steps: switching the state of the directional relay to the state that the normally open contact is closed and the normally closed contact is opened according to the driving power supply; when the track section direction is the positive direction, the direction relay state is switched to the normally open contact to be opened and the normally closed contact to be closed. The direction relay is built in the track circuit system, so that the direction relay can adapt to various coding application scenes, sections and track circuits in stations, the electrical connection of the direction relay to the track circuit system adopts PCB wiring connection, the design of the direction switching circuit considers the fault guiding safety principle, the state of the direction relay can be monitored by the track circuit system or obtained through a communication mode, meanwhile, the track circuit occupies the state during fault, fault guiding is safe, a cabinet for installing the direction relay is saved, a large amount of wiring is removed, the convenience of construction is increased, the track circuit system can accurately position fault points, the system maintenance difficulty is reduced, and the labor cost is saved.
Description
Technical Field
The application belongs to the technical field of rail transit, and particularly relates to a safe rail circuit direction switching method and system.
Background
The track circuit system needs to adapt to the requirement of bidirectional running of a line train, the train needs to meet the code sending of the train when running in the forward direction and the reverse direction, the frequency shift signal is adopted to send the code at present, and the track circuit simultaneously adopts the frequency shift signal to carry out occupied idle check, so that the direction of a transmitting end and a receiving end of the track section needs to be changed.
In the existing relay coding and communication coding track circuit direction switching, a gravity relay is adopted as a direction relay to realize switching section transmission, receiving end direction and track circuit signal direction frequency switching, the direction relay is driven by a train control or interlocking system, each track circuit is provided with 1 or a plurality of direction relays, a large number of wires are externally connected to a direction relay combination cabinet, if a certain direction relay breaks down, the system shows track circuit function faults, and as the contact state of the direction relay cannot be collected by the track circuit system, the track circuit system cannot locate faults and alarm, and needs to manually remove the faults, thereby increasing difficulty of fault finding, construction complexity and a large number of fault points.
Disclosure of Invention
In view of the fact that the contact state of the directional relay cannot be collected by the track circuit system, the track circuit system cannot locate faults and give an alarm, manual fault removal is needed, difficulty in fault finding is increased, construction complexity is increased, and a large number of fault points are increased.
The application provides a safe track circuit direction switching method, which comprises the following steps:
in the case that the track section direction is the opposite direction, a driving power is sent to the direction relay,
according to the driving power supply, the state of the directional relay is switched to the state that the normally open contact is closed and the normally closed contact is opened; the direction relay is arranged in the equipment redundancy switching unit of the track circuit system;
when the track section direction is the positive direction, the direction relay state is switched to the normally open contact to be opened and the normally closed contact to be closed.
Further, the direction relay includes:
a first directional relay FQJ1 and a second directional relay FQJ2, wherein a set of normally open contacts of the first directional relay FQJ1 and a set of normally open contacts of the second directional relay FQJ2 are connected in series and then output a directional relay normally open contact check condition FQJ _no.
Further, the method comprises the steps of:
the normal-close contacts of the first direction relay FQJ1 and the normal-close contacts of the second direction relay FQJ are connected in series, and then the normal-close contact check condition FQJ _nc of the direction relay is outputted.
Further, the method comprises the steps of:
under the condition of switching the transmitting and receiving ends of the track section, when the direction of the track section is the positive direction, the outdoor 1 end is the transmitting end, and the outdoor 2 end is the receiving end;
when the track section direction is the opposite direction, the outdoor 2 end is the sending end, and the outdoor 1 end is the receiving end.
Further, the signal line S1 is connected to a set of normally open contacts and normally closed contacts of the first directional relay FQJ 1;
the signal line S2 is connected to a group of normally open contacts and normally closed contacts of the second directional relay FQJ;
the signal line V1 is connected to a group of normally open contacts and normally closed contacts of the first directional relay FQJ 1;
the signal line V2 is connected to a set of normally open and normally closed contacts of the second directional relay FQJ.
Further, rechecking is performed for FQJ _NO and FQJ _NC states of the direction relay; judging whether the direction relay is in a fault state or not;
if the track section direction is the positive direction, FQJ _no of the direction relay is unconditional, FQJ _nc is conditional, the direction relay is in the first normal state, and the track section is occupied and guided by the safety signal in the fault state.
Further, the method further comprises:
if the track section direction is the opposite direction, the FQJ _no of the direction relay is conditional, the FQJ _nc state is unconditional, the direction relay is in the second normal state, and the fault state is the fault state, and the track section is occupied and guided by the safety signal in the fault state, and the states except the first normal state and the second normal state of the direction relay are the fault states.
Further, 2 groups of normally open and normally closed contacts of the first direction relay FQJ1 or the second direction relay FQJ are respectively connected to the S1 and S2 lines of the signal line, and 2 groups of normally open and normally closed contacts of the second direction relay FQJ2 or the first direction relay FQJ1 are respectively connected to the V1 and V2 lines of the signal line;
when the directional relay is malfunctioning, namely: when the first direction relay FQJ1 or the second direction relay FQJ2 is inconsistent with the expected action; the receiving end receives the fault signal and judges the fault signal according to the set withstand voltage value.
Further, the determining the fault signal according to the set withstand voltage value includes:
and if the fault signal is larger than the set voltage withstand value, sending out an equipment damage signal.
Further, the method further comprises:
when the forward and reverse are respectively in an isolation adjustment state of the rail circuit receiving voltage, the forward and reverse adjustment circuits are switched through a direction reset relay ZFJ;
wherein, the direction relay ZFJ is driven by the normally closed contact FQJ _NC condition of the total direction relay;
and carrying out dynamic safety detection processing on the normally open contact detection condition ZFJ_NO and the normally closed contact detection condition ZFJ_NC of the output direction reset relay.
Further, the dynamic safety detection processing is performed on the normally open contact check condition zfj_no and the normally closed contact check condition zfj_nc of the output direction reclosing relay, including:
when the track section direction is the positive direction, the first direction relay FQJ1 is opened, the second direction relay FQJ2 is opened, the reset relay is closed, the normally closed contact check condition ZFJ_NC of the reset relay is unpowered, and the normally open contact check condition ZFJ_NO of the reset relay is in an electrified state;
when the driving condition of the reset relay is inconsistent with the required state, the track circuit is judged to be in an occupied state, and the fault is led to the safety side.
Based on the same inventive concept, the application also provides a safe track circuit direction switching system, which comprises:
a transmitting unit for transmitting the driving power to the direction relay in the case that the track section direction is the opposite direction,
the switching unit is used for switching the state of the directional relay to the state that the normally open contact is closed and the normally closed contact is opened according to the driving power supply; the direction relay is arranged in the equipment redundancy switching unit of the track circuit system;
when the track section direction is the positive direction, the direction relay state is switched to the normally open contact to be opened and the normally closed contact to be closed.
Based on the same inventive concept, the application also provides electronic equipment, which comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;
a memory for storing a computer program;
and the processor is used for realizing the track circuit direction switching method when executing the program stored in the memory.
Based on the same inventive concept, the present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the track circuit direction switching method.
The application has the beneficial effects that:
the application can adapt to various coding application scenes, intervals and track circuits in stations by arranging the direction relay in the track circuit system, the electrical connection of the direction relay to the track circuit system adopts PCB wiring connection, the design of the direction switching circuit considers the fault guiding safety principle, the state of the direction relay can be monitored by the track circuit system, meanwhile, the track circuit occupies the state during fault, the fault guiding is safe, the cabinet for installing the direction relay is saved, a large amount of wiring is removed, the convenience of construction is increased, the track circuit system can accurately position fault points, the system maintenance difficulty is reduced, and a large amount of labor cost is saved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a safe track circuit direction switching method according to the present application;
FIG. 2 is a schematic diagram of a track circuit direction switching architecture of the present application;
FIG. 3 is a schematic diagram of a switching track circuit of the present application;
fig. 4 shows a schematic diagram of a fault condition of the first direction relay FQJ1 of the present application;
fig. 5 shows a schematic diagram of the fault condition of the first direction relay FQJ1 and the second direction relay FQJ of the present application;
FIG. 6 is a schematic diagram showing the function of adjusting the switching receiver according to the present application;
FIG. 7 is a schematic diagram of a safe track circuit direction switching system according to the present application;
fig. 8 shows a schematic diagram of an electronic device of the application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that the terms "first," "second," and the like herein are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings.
The application adopts 2 forced guiding relays with 3 opening and 3 closing contacts as the direction relays of the track circuit switching sending and receiving end states, the forced guiding relays are respectively a first direction relay FQJ and a second direction relay FQJ, the direction relays are arranged in a redundancy switching unit of equipment in the track circuit system, a digital control unit outputs driving conditions for driving the direction relays, a direction resetting relay is arranged in the forced guiding relay and is used for switching a receiving end isolation adjusting circuit and providing signal type conditions for the digital control unit, the direction resetting relay adopts normally closed contacts of the direction relays to conduct driving, the contact state conditions of the direction relays are normally opened and normally closed contacts, the normally opened contacts and normally closed contacts of the direction resetting relay are all returned to the digital control unit, the digital control unit carries out dynamic-safe acquisition on the normally opened and normally closed contacts of the direction relays and the direction resetting relay, under the condition that the digital control unit triggers a fault handling mechanism under the condition of the relay, the track state is occupied, the fault guiding is enabled to be safe, and meanwhile, the monitoring information is uploaded to alarm the direction relays.
The embodiment of the application provides a safe track circuit direction switching method, and referring to fig. 1, the method comprises the following steps:
s101, under the condition that the track section direction is the opposite direction, sending a driving power supply to a direction relay;
s102, switching the state of the directional relay to the state that a normally open contact is closed and a normally closed contact is opened according to a driving power supply; the direction relay is arranged in the equipment redundancy switching unit of the track circuit system;
and S103, when the track section direction is the positive direction, the direction relay state is switched to the state that the normally open contact is opened and the normally closed contact is closed.
Referring to fig. 2, wherein the directional relay includes:
a first directional relay FQJ1 and a second directional relay FQJ2, wherein a set of normally open contacts of the first directional relay FQJ1 and a set of normally open contacts of the second directional relay FQJ2 are connected in series and then output a directional relay normally open contact check condition FQJ _no.
The normal-close contacts of the first direction relay FQJ1 and the normal-close contacts of the second direction relay FQJ are connected in series, and then the normal-close contact check condition FQJ _nc of the direction relay is outputted.
Specifically, the relationship between the operation state of the relay and the section operation direction is as follows:
in the positive direction: the first direction relay FQJ1 falls, the second direction relay FQJ2 falls, and the relay ZFJ is sucked up;
when the direction is reversed: the first direction relay FQJ1 is lifted, the second direction relay FQJ is lifted, and the relay ZFJ is lowered.
The coil driving wires of the first direction relay FQJ and the second direction relay FQJ2 are connected in parallel, and the digital control unit drives 2 relays to suck and drop simultaneously.
Referring to fig. 3, when the segment direction is forward, the digital control unit does not output a driving power source, and the relay contacts of the first direction relay FQJ and the second direction relay FQJ2 are normally closed contacts NC closed and normally open contacts NO open. When the section direction is reverse, the digital control unit outputs a driving power supply, and the relay contacts of the first direction relay FQJ and the second direction relay FQJ2 are normally open contacts NO closed and normally closed contacts NC open.
In the application, the power supply in the redundant control unit is G24+ and G24-power supply, a group of normally open contacts NO of a first direction relay FQJ1 and a group of normally open contacts NO of a second direction relay FQJ2 are connected in series and then are connected with the G24+ power supply, a general direction relay normally open contact NO checking condition direction relay FQJ _NO is output, a normally closed contact NC of the first direction relay FQJ1 and a normally closed contact NC of the second direction relay FQJ are connected in series and then are connected with the G24+ power supply, and a general direction relay normally closed contact NC checking condition FQJ _NC is output.
The relation between the action state of the relay and the running direction of the section is as follows:
in the positive direction: the first direction relay FQJ1 falls, the second direction relay FQJ falls, the direction relay normally open contact NO check condition FQJ _no is a NO-power state, and the direction relay normally closed contact NC check condition FQJ _nc is a power state;
when the direction is reversed: the first direction relay FQJ1 is turned on, the second direction relay FQJ is turned on, the direction relay normally-closed contact NC check condition FQJ _nc is a NO-power state, and the direction relay normally-open contact NO check condition FQJ _no is a power state.
In some alternative embodiments, in the case of switching the sending and receiving ends of the track section, when the track section direction is the positive direction, the outdoor 1 end is the sending end, and the outdoor 2 end is the receiving end;
when the track section direction is the opposite direction, the outdoor 2 end is the sending end, and the outdoor 1 end is the receiving end. The signal line S1 is connected to a group of normally open contacts and normally closed contacts of the first directional relay FQJ 1; the signal line S2 is connected to a group of normally open contacts and normally closed contacts of the second directional relay FQJ; the signal line V1 is connected to a group of normally open contacts and normally closed contacts of the first directional relay FQJ 1; the signal line V2 is connected to a set of normally open and normally closed contacts of the second directional relay FQJ. The method has the advantages that after the first direction relay FQJ1 or the second direction relay FQJ fails and is inconsistent with the expected action, the signal wrongly accessed at the receiving end of the signal channel is smaller and cannot cause equipment damage, and at the moment, the digital control unit recognizes that the state rechecking conditions of the normally open contact checking condition FQJ _NO of the direction relay and the normally closed contact checking condition FQJ _NC of the direction relay are wrong, and equipment fault guiding safety measures are triggered.
In some alternative embodiments: rechecking the FQJ _NO and FQJ _NC states of the direction relay; judging whether the direction relay is in a fault state or not;
if the track section direction is the positive direction, FQJ _no of the direction relay is unconditional, FQJ _nc is conditional, the direction relay is in the first normal state, and the track section is occupied and guided by the safety signal in the fault state.
The method further comprises the steps of:
if the track section direction is the opposite direction, the FQJ _no of the direction relay is conditional, the FQJ _nc state is unconditional, the direction relay is in the second normal state, and the fault state is the fault state, and the track section is occupied and guided by the safety signal in the fault state, and the states except the first normal state and the second normal state of the direction relay are the fault states.
Specifically, when the relay fails, if the first direction relay FQJ1 fails, the second direction relay FQJ is normal, and the section direction is the opposite direction, the first direction relay FQJ or the second direction relay FQJ fails, and still maintains the falling state, and the second direction relay FQJ2 or the first direction relay FQJ is in the normal suction state, at this time, a signal detouring is generated, the receiving rail access point accesses an error voltage, the error voltage value does not exceed 11% of the transmitting end voltage, referring to fig. 4, the signal received by the receiving end in error does not exceed the bearable voltage, the equipment is not damaged, but the track section is caused to be idle in error, which is a dangerous state. At the moment, the digital control unit recognizes that the state rechecking conditions of the normally open contact checking condition FQJ _NO of the direction relay and the normally closed contact checking condition FQJ _NC of the direction relay are unconditional, and the state rechecking of the relay does not meet the mutual exclusion checking logic, and the digital control unit sets the triggering track section as occupied and guiding safety.
In some alternative embodiments, the S1 and S2 lines of the signal line are respectively connected to 2 groups of normally open and normally closed contacts of the first direction relay FQJ or the second direction relay FQJ, and the V1 and V2 lines of the signal line are respectively connected to 2 groups of normally open and normally closed contacts of the second direction relay FQJ or the first direction relay FQJ 1;
when the directional relay is malfunctioning, namely: when the first direction relay FQJ1 and/or the second direction relay FQJ2 are inconsistent with the intended action; the receiving end receives the fault signal and judges the fault signal according to the set withstand voltage value.
Specifically, the determining the fault signal according to the set withstand voltage value includes:
and if the fault signal is larger than the set voltage withstand value, sending out an equipment damage signal.
Referring to fig. 5, if the S1 and S2 lines of the signal line are connected to the 2 sets of normally open and normally closed contacts of the first directional relay FQJ or the second directional relay FQJ, respectively, and the V1 and V2 lines of the signal line are connected to the 2 sets of normally open and normally closed contacts of the second directional relay FQJ or the first directional relay FQJ1, respectively, when a relay in FQJ1 and/or the second directional relay FQJ fails and is inconsistent with an expected action, the receiving end signal is immediately connected to the transmitting end signal, and the signal exceeds a voltage value that the receiving end can bear, thereby damaging the device.
In some alternative embodiments, the method further comprises:
when the forward and reverse are respectively in an isolation adjustment state of the rail circuit receiving voltage, the forward and reverse adjustment circuits are switched through a direction reset relay ZFJ;
wherein, the direction relay ZFJ is driven by the normally closed contact FQJ _NC condition of the total direction relay;
and carrying out dynamic safety detection processing on the normally open contact detection condition ZFJ_NO and the normally closed contact detection condition ZFJ_NC of the output direction reset relay.
Specifically, the dynamic safety detection process is performed on the normally open contact check condition zfj_no and the normally closed contact check condition zfj_nc of the output direction reclosing relay, including:
when the track section direction is the positive direction, the first direction relay FQJ1 is opened, the second direction relay FQJ2 is opened, the reset relay is closed, the normally closed contact check condition ZFJ_NC of the reset relay is unpowered, and the normally open contact check condition ZFJ_NO of the reset relay is in an electrified state;
when the driving condition of the reset relay is inconsistent with the required state, the track circuit is judged to be in an occupied state, and the fault is led to the safety side.
Specifically, the track circuit has outdoor send, receive end according to the forward, reverse switching operation scene, the track adjustment of the curved stock district of switch in the station can not satisfy forward, reverse adjustment state simultaneously, need forward, reverse respectively to carry out the isolation adjustment of track circuit received voltage, adopt direction to show relay ZFJ to switch forward, reverse adjustment circuit, switch input signal, output signal. Referring to fig. 6, the direction relay ZFJ is driven by using a general direction relay normally-closed contact check condition FQJ _nc, and the normally-open contact of the direction relay ZFJ is turned on to g24+ power supply condition and the normally-closed contact is turned on to g24+ condition, and the normally-open contact check condition zfj_no and the normally-closed contact check condition zfj_nc of the direction relay are output to the digital control unit to perform dynamic safety detection processing.
The relation between the action state of the relay and the running direction of the section is as follows:
in the positive direction: the first direction relay FQJ1 falls, the second direction relay FQJ falls, the direction relay ZFJ sucks up, the normally open contact check condition zfj_no of the direction relay is in a power supply state, and the normally closed contact check condition zfj_nc of the direction relay is in a power supply-free state;
when the direction is reversed: the first direction relay FQJ1 is attracted up, the second direction relay FQJ2 is attracted up, the direction relay ZFJ falls, the normally closed contact check condition zfj_nc of the direction relay is in a power-on state, and the normally open contact check condition zfj_no of the direction relay is in a power-off state.
Specifically, when the relay ZFJ fails and the state required by the driving condition is inconsistent, for example, the section direction is reverse, the normally closed contact NC of the relay ZFJ should be closed in the normal state, if the relay ZFJ fails, the normally closed contact NC is opened, and the normally open contact NO is closed, the track circuit adjusts and switches erroneously, which may cause the output voltage to rise, and the track circuit cannot be normally set in the occupied state, and at this time, the state of dynamic safety acquisition of the digital control unit device is as follows:
when the direction is reversed: the error coil of the reset relay ZFJ is sucked up, the normally closed contact checking condition ZFJ_NC of the direction reset relay is in a power-free state, the normally open contact checking condition ZFJ_NO of the direction reset relay is in a power-on state, at the moment, the digital control unit dynamically and safely detects that the contact state of the reset relay ZFJ is driving and inconsistent, the digital control unit sets a track circuit to be in an occupied state, and the fault is led to the safety side.
Based on the same inventive concept, the present application also provides a safe track circuit direction switching system, see fig. 7, including:
a transmitting unit 701 for transmitting the driving power to the direction relay in the case that the track section direction is the opposite direction,
a switching unit 702, configured to switch the direction relay state to a state in which the normally open contact is closed and the normally closed contact is opened according to the driving power supply; the direction relay is arranged in the equipment redundancy switching unit of the track circuit system;
when the track section direction is the positive direction, the direction relay state is switched to the normally open contact to be opened and the normally closed contact to be closed.
The system further comprises: and the digital control unit is used for outputting driving conditions of the driving direction relay, collecting normally open and normally closed contact conditions of the direction relay and the direction reset relay for dynamic safety collection, and uploading monitoring information to alarm fault of the direction relay.
The application can adapt to various coding application scenes, intervals and track circuits in stations by arranging the direction relay in the track circuit system, the electrical connection of the direction relay to the track circuit system adopts PCB wiring connection, the design of the direction switching circuit considers the fault guiding safety principle, the state of the direction relay can be monitored by the track circuit system, meanwhile, the track circuit occupies the state during fault, the fault guiding is safe, the cabinet for installing the direction relay is saved, a large amount of wiring is removed, the convenience of construction is increased, the track circuit system can accurately position fault points, the system maintenance difficulty is reduced, and a large amount of labor cost is saved.
Based on the same inventive concept, the present application also provides an electronic device 161, see fig. 8, including a processor 164, a communication interface 165, a memory 162 and a communication bus, wherein the processor 164, the communication interface 165 and the memory 162 complete communication with each other through the communication bus;
a memory 162 for storing a computer program 163;
the processor 164 is configured to implement the track circuit direction switching method when executing the program stored in the memory 162.
The communication bus may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus, an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, or the like. The communication bus may be classified as an address bus, a data bus, a control bus, or the like.
The communication interface 165 is used for communication between the electronic device 161 and other devices as described above.
The memory 162 may include a random access memory 162 (Random Access Memory, simply RAM) or may include a non-volatile memory 162, such as at least one disk memory 162. Optionally, the memory 162 may also be at least one memory device located remotely from the aforementioned processor 164.
The processor 164 may be a general-purpose processor 164, including a central processing unit 164 (Central Processing Unit, CPU), a network processor 164 (Network Processor, NP), etc.; but may also be a digital signal processor 164 (Digital Signal Processing, DSP for short), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC for short), a Field-programmable gate array (Field-Programmable Gate Array, FPGA for short), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components.
Based on the same inventive concept, the present application also provides a computer readable storage medium having stored thereon a computer program 163, which computer program 163, when executed by the processor 164, implements the track circuit direction switching method.
The computer-readable storage medium may be embodied in the apparatus/means described in the above embodiments; or may exist alone without being assembled into the apparatus/device. The above-described computer-readable storage medium carries one or more programs that, when executed, implement the track circuit direction switching method according to the embodiments of the present disclosure.
Although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (8)
1. A method for secure track circuit direction switching, comprising:
in the case that the track section direction is the opposite direction, a driving power is sent to the direction relay,
according to the driving power supply, the state of the directional relay is switched to the state that the normally open contact is closed and the normally closed contact is opened; the direction relay is arranged in the equipment redundancy switching unit of the track circuit system;
under the condition that the track section direction is the positive direction, the direction relay state is switched to the state that the normally open contact is opened and the normally closed contact is closed;
the direction relay includes:
a first directional relay FQJ1 and a second directional relay FQJ2, wherein a set of normally open contacts of the first directional relay FQJ1 and a set of normally open contacts of the second directional relay FQJ2 are connected in series and then output a directional relay normally open contact check condition FQJ _no; outputting a direction relay normally-closed contact check condition FQJ _nc after a group of normally-closed contacts of the first direction relay FQJ1 and a group of normally-closed contacts of the second direction relay FQJ are connected in series;
the method further comprises the steps of:
rechecking the FQJ _NO and FQJ _NC states of the direction relay; judging whether the direction relay is in a fault state or not;
if the track section direction is the positive direction, the FQJ _no of the direction relay is unconditional, the FQJ _nc state is conditional, the direction relay is in the first normal state, and the direction relay is in the fault state, and the track section is occupied and guided by the safety signal in the fault state;
if the direction of the track section is the opposite direction, the FQJ _NO of the direction relay is conditional aiming at the return detection result of the direction relay, the FQJ _NC state is unconditional, the direction relay is in a second normal state, and the direction relay is in a fault state, and the track section is occupied and guided by a safety signal under the fault state;
2 groups of normally open and normally closed contacts of a first direction relay FQJ1 or a second direction relay FQJ are respectively connected to an S1 line of the signal line and an S2 line of the signal line;
the V1 line of the signal line and the V2 line of the signal line are respectively connected with 2 groups of normally open and normally closed contact states of the second direction relay FQJ2 or the first direction relay FQJ;
when the directional relay is malfunctioning, namely: when the first direction relay FQJ1 or the second direction relay FQJ2 is inconsistent with the expected action; the receiving end receives the fault signal and judges the fault signal according to the set withstand voltage value; and if the fault signal is larger than the set voltage withstand value, sending out an equipment damage signal.
2. The method according to claim 1, characterized in that it comprises:
under the condition of switching the transmitting and receiving ends of the track section, when the direction of the track section is the positive direction, the outdoor 1 end is the transmitting end, and the outdoor 2 end is the receiving end;
when the track section direction is the opposite direction, the outdoor 2 end is the sending end, and the outdoor 1 end is the receiving end.
3. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the signal line S1 is connected to a group of normally open contacts and normally closed contacts of the first directional relay FQJ 1;
the signal line S2 is connected to a group of normally open contacts and normally closed contacts of the second directional relay FQJ;
the signal line V1 is connected to a group of normally open contacts and normally closed contacts of the first directional relay FQJ 1;
the signal line V2 is connected to a set of normally open and normally closed contacts of the second directional relay FQJ.
4. The method according to claim 1, wherein the method further comprises:
when the forward and reverse are respectively in an isolation adjustment state of the rail circuit receiving voltage, the forward and reverse adjustment circuits are switched through a direction reset relay ZFJ;
wherein, the direction relay ZFJ is driven by the normally closed contact FQJ _NC condition of the total direction relay;
and carrying out dynamic safety detection processing on the normally open contact detection condition ZFJ_NO and the normally closed contact detection condition ZFJ_NC of the output direction reset relay.
5. The method according to claim 4, wherein the dynamic safety detection process is performed for the normally open contact check condition zfj_no and the normally closed contact check condition zfj_nc of the output direction reclosing relay, including:
when the track section direction is the positive direction, the first direction relay FQJ1 is opened, the second direction relay FQJ2 is opened, the reset relay is closed, the normally closed contact check condition ZFJ_NC of the reset relay is unpowered, and the normally open contact check condition ZFJ_NO of the reset relay is in an electrified state;
when the track section direction is the opposite direction, the first direction relay FQJ1 is closed, the second direction relay FQJ2 is closed, the reset relay is opened, the normally closed contact check condition ZFJ_NC of the reset relay is electrified, and the normally open contact check condition ZFJ_NO of the reset relay is in a non-electrified state;
when the driving condition of the reset relay is inconsistent with the required state, the track circuit is judged to be in an occupied state, and the fault is led to the safety side.
6. A secure track circuit direction switching system, comprising:
a transmitting unit for transmitting the driving power to the direction relay in the case that the track section direction is the opposite direction,
the switching unit is used for switching the state of the directional relay to the state that the normally open contact is closed and the normally closed contact is opened according to the driving power supply; the direction relay is arranged in the equipment redundancy switching unit of the track circuit system;
under the condition that the track section direction is the positive direction, the direction relay state is switched to the state that the normally open contact is opened and the normally closed contact is closed;
the direction relay includes:
a first directional relay FQJ1 and a second directional relay FQJ2, wherein a set of normally open contacts of the first directional relay FQJ1 and a set of normally open contacts of the second directional relay FQJ2 are connected in series and then output a directional relay normally open contact check condition FQJ _no; outputting a direction relay normally-closed contact check condition FQJ _nc after a group of normally-closed contacts of the first direction relay FQJ1 and a group of normally-closed contacts of the second direction relay FQJ are connected in series;
rechecking the FQJ _NO and FQJ _NC states of the direction relay; judging whether the direction relay is in a fault state or not;
if the track section direction is the positive direction, the FQJ _no of the direction relay is unconditional, the FQJ _nc state is conditional, the direction relay is in the first normal state, and the direction relay is in the fault state, and the track section is occupied and guided by the safety signal in the fault state;
if the direction of the track section is the opposite direction, the FQJ _NO of the direction relay is conditional aiming at the return detection result of the direction relay, the FQJ _NC state is unconditional, the direction relay is in a second normal state, and the direction relay is in a fault state, and the track section is occupied and guided by a safety signal under the fault state;
2 groups of normally open and normally closed contacts of a first direction relay FQJ1 or a second direction relay FQJ are respectively connected to an S1 line of the signal line and an S2 line of the signal line;
the V1 line of the signal line and the V2 line of the signal line are respectively connected with 2 groups of normally open and normally closed contact states of the second direction relay FQJ2 or the first direction relay FQJ;
when the directional relay is malfunctioning, namely: when the first direction relay FQJ1 or the second direction relay FQJ2 is inconsistent with the expected action; the receiving end receives the fault signal and judges the fault signal according to the set withstand voltage value; and if the fault signal is larger than the set voltage withstand value, sending out an equipment damage signal.
7. The electronic equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;
a memory for storing a computer program;
a processor for implementing the method of secure track circuit direction switching of any one of claims 1 to 5 when executing a program stored on a memory.
8. A computer readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the method of secure track circuit direction switching of any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311047477.0A CN116767304B (en) | 2023-08-21 | 2023-08-21 | Safe track circuit direction switching method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311047477.0A CN116767304B (en) | 2023-08-21 | 2023-08-21 | Safe track circuit direction switching method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116767304A CN116767304A (en) | 2023-09-19 |
| CN116767304B true CN116767304B (en) | 2023-11-17 |
Family
ID=87993390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311047477.0A Active CN116767304B (en) | 2023-08-21 | 2023-08-21 | Safe track circuit direction switching method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116767304B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012166735A (en) * | 2011-02-16 | 2012-09-06 | Daido Signal Co Ltd | Operation-direction indicating relay circuit of automatic block instrument for single-track section |
| CN103552486A (en) * | 2013-11-13 | 2014-02-05 | 北京全路通信信号研究设计院有限公司 | Track circuit |
| CN103600754A (en) * | 2013-12-02 | 2014-02-26 | 北京铁路信号有限公司 | Track circuit code sending system |
| CN112590872A (en) * | 2020-12-29 | 2021-04-02 | 卡斯柯信号有限公司 | Train running direction control system and method for bidirectional line section |
| CN114348047A (en) * | 2022-01-06 | 2022-04-15 | 北京全路通信信号研究设计院集团有限公司 | Direction switching attenuation redundant controller and contactless track circuit system |
-
2023
- 2023-08-21 CN CN202311047477.0A patent/CN116767304B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012166735A (en) * | 2011-02-16 | 2012-09-06 | Daido Signal Co Ltd | Operation-direction indicating relay circuit of automatic block instrument for single-track section |
| CN103552486A (en) * | 2013-11-13 | 2014-02-05 | 北京全路通信信号研究设计院有限公司 | Track circuit |
| CN103600754A (en) * | 2013-12-02 | 2014-02-26 | 北京铁路信号有限公司 | Track circuit code sending system |
| CN112590872A (en) * | 2020-12-29 | 2021-04-02 | 卡斯柯信号有限公司 | Train running direction control system and method for bidirectional line section |
| CN114348047A (en) * | 2022-01-06 | 2022-04-15 | 北京全路通信信号研究设计院集团有限公司 | Direction switching attenuation redundant controller and contactless track circuit system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116767304A (en) | 2023-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109278802B (en) | Alternating current turnout device, system and control method thereof | |
| CN109278801B (en) | Turnout indicating device | |
| CN103293949A (en) | On-off output channel redundancy fault-tolerant control method and redundancy on-off output channels | |
| CN110137902A (en) | One kind prevents flexible direct current power module by-pass switch from refusing combined floodgate circuit and method | |
| CN116767304B (en) | Safe track circuit direction switching method and system | |
| CN104392757A (en) | DCS for nuclear power station | |
| CN106027690A (en) | Dynamic network configuration system based on MVB bus and method thereof | |
| CN110190740B (en) | Fault-tolerant protection method and circuit of PFC circuit and air conditioner | |
| CN112278019B (en) | Semi-automatic block circuit and driving method of semi-automatic block circuit | |
| CN111186464A (en) | Full electronic computer interlocking system based on switching button | |
| CN110949446B (en) | Control circuit and method for electronic turnout | |
| US9629222B2 (en) | Digital addressable lighting interface short protection circuit | |
| CN203561843U (en) | Redundant on-off output channel | |
| CN205429888U (en) | Device that restarts of ripples device is recorded to trouble based on dispatching data network | |
| CN101893848B (en) | Method for realizing failure safety by power cutoff | |
| CN109193915B (en) | Switch machine control circuit, system, control method and fault detection method | |
| CN105896473A (en) | Open-phase protection device having a function of multi-redundancy intelligent carried charge display and control method of open-phase protection device | |
| CN204333925U (en) | Motor automatic fault detection system | |
| CN106451784A (en) | Monitoring device for telecontrol communication state of transformer substation and monitoring method thereof | |
| CN207360345U (en) | Vehicle-mounted ATP remote reboot circuit | |
| CN211045905U (en) | Electronic interface equipment with master parallel mode | |
| CN206117314U (en) | Supervisory equipment of transformer substation's telemechanical communication state | |
| CN112373518A (en) | Electronic five-wire system turnout control device | |
| CN220663915U (en) | Mine long belt stay cord segmentation signal control system | |
| CN215108294U (en) | Platform door central control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |