CN103963801A - System for solving poor shunting problem of in-station track circuit zone based on distance measuring sensors - Google Patents
System for solving poor shunting problem of in-station track circuit zone based on distance measuring sensors Download PDFInfo
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- CN103963801A CN103963801A CN201410223003.1A CN201410223003A CN103963801A CN 103963801 A CN103963801 A CN 103963801A CN 201410223003 A CN201410223003 A CN 201410223003A CN 103963801 A CN103963801 A CN 103963801A
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Abstract
The invention discloses a system for solving the poor shunting problem of an in-station track circuit zone based on distance measuring sensors. The system comprises at least two distance measuring sensors for detecting and outputting a value of a distance from a sleeper to the train bottom in the track circuit zone in real time; using a control panel to receive the distance values output by at least two distance measuring sensors, judging whether a train occupies the track circuit zone or not according to the distance values, enabling the control panel to output a control signal to an electric control switch and enable the electric control switch to act and electrify shunting lines if the train occupies the track circuit zone, enabling the control panel to output the control signal to the electric control switch and enable the electric control switch to act and disconnect the shunting lines if the train does not occupy the track circuit zone; enabling the shunting lines to be located on the outer sides of the left and right ends of the track circuit zone, connected with the electric control switch in series and then enabling two ends of each shunting line to be respectively connected to steel rails in the track circuit zone, wherein the shunting lines are used for connection or disconnection of two steel rails when the electric control switch acts. The system adopts a technical scheme different from an existing mainstream scheme and is high in reliability and safety, low in cost and simple and easy to implement.
Description
Technical field
The present invention relates to railway track circuit shunting badness detection field, particularly a kind of system that solves station track circuit section shunting badness based on distance measuring sensor.
Background technology
Signal is that railroad train is advanced " eyes ", is to ensure traffic safety, realize centralized and unified commander, improve the important means of conveying efficiency.Along with the development of railway, nonpassage of signal also develops into full automaticity obturation from semi-automatic block system, and interval or the section of driving have all shortened, 6 speed-raisings have been passed through simultaneously, on each interval or section, can only have a train operation, therefore, the safety of driving is just more aobvious outstanding.Judge whether interval or section have car to take, adopt at present track circuit to realize, track circuit utilizes rail as transmission path, mix transmitting apparatus and reception facilities and rail insulation and form, when in block section during without train driving, electric current can be from power supply via the track relay of flowing through, and makes its excitatory band contact heel, connects the circuit (signal shows that safety is current immediately) of green light.In the time having train to sail block section into, electric current is changed one's profession through train axle, forms branch current, this state is referred to as good along separate routes, the electric current relay of can not flowing through, relay, because losing electric current loss of excitation, is connected the circuit (signal shows that barrier is forbidden immediately) of red light.Track section or section belong to outdoor facility, through wind, Exposure to Sunlight, drench with rain, the corrosion of slag and other article, often the segment steel track surface of mule carriage will oxidation and rusting for some, according to the number of mule carriage, the degree of corrosion is also different, in this case rolling stock by time can not be effectively along separate routes, thereby form shunting badness phenomenon, signal still shows green light, cause the illusion of section without car, in the time that shunting badness occurs, the track relay of existing track circuit can not fall formation red band by failure-free, can cause " losing car " phenomenon, train traffic control personnel do not know rolling stock operation or the position stopping yet, also just likely arrange another locomotive to enter same track circuit, finally cause train operation accident.Track section shunting badness is the major cause that causes accident to occur, it is all in the process of shunting that event occurs, locomotive operation during to shunting badness section red band disappear, Platform attendant is conjestured locomotive and has been gone out clearly, again pull track switch, cause major accidents such as squeezing trouble or car to car impact to occur.So the real-time monitoring system of research and development railroad track section, prevention track circuit shunting badness has become station track circuit great safety related technical problems urgently to be resolved hurrily.
Summary of the invention
The object of the invention is to overcome existing above-mentioned deficiency in prior art, provide a kind of safe, reliable, cost is low solves the system of station track circuit section shunting badness based on distance measuring sensor.
In order to realize foregoing invention object, the technical solution used in the present invention is: a kind of system that solves station track circuit section shunting badness based on distance measuring sensor, comprise: at least two distance measuring sensors, also export to the distance value of train bottom for detecting in real time sleeper in track circuit section; Control desk, be used for the distance values of at least two distance measuring sensor outputs described in receiving, judge according to described distance value whether train takies this track circuit section, if, described control desk outputs a control signal to electric-controlled switch and makes electric-controlled switch action conducting shunt lead, if not, described control desk outputs a control signal to electric-controlled switch and makes electric-controlled switch action disconnection shunt lead; Shunt lead, be positioned at outside, two ends, track circuit section left and right, after its series connection electric-controlled switch, both ends connect respectively the rail in described track circuit section, in the time that track circuit section left end is sent a car, two rail that described control desk control conducting left side shunt lead connects, right side not conducting of shunt lead; In the time that track circuit section right-hand member is sent a car, two rail that described control desk control conducting right side shunt lead connects, left side not conducting of shunt lead.
The auxiliary existing track circuit of the present invention completes orbit occupancy judgement, it is for the bad problem of track branch, utilizing train bottom in the time of train occupation station track circuit section is this limited principle to the distance of sleeper box, by distance measuring sensor, sleeper box in track circuit section is monitored in real time to train distance from bottom, obtain the situation of orbit occupancy by the processing of control desk, connect steel rail line according to taking situation by the method for electric-controlled switch control shunt lead again, realize effectively along separate routes, reach similar train axle and form effect along separate routes.Shunt lead is self-defining a kind of wire, the axletree of train when its effect is equivalent to train injection shunt section, by shunt lead, two rail are linked together, control whether two rail of conducting of shunt lead by electric-controlled switch, when shunt lead is communicated with after two rail, track relay action in existing track circuit system, aspect is red light, shows that this track circuit section is occupied.
Preferably, described control desk judges according to described distance value whether train takies this track circuit section and be specially: if described distance value in predetermined threshold range, this track circuit section of train occupation, if not, vacant this track circuit section of train.
Preferably, described at least two distance measuring sensors are installed on the sleeper box place in track circuit section rail, and do not exceed rail rail plane.
Further, the sleeper box place that described at least two distance measuring sensors are installed in track circuit section rail is specially: lay distance measuring sensor at head end and 3 continuous sleeper box places of tail end of described track circuit section respectively, described distance measuring sensor is electrically connected with described control desk respectively.
Preferably, the centre portion between head end and the tail end of described track circuit section is laid a distance measuring sensor every 4m.
Preferably, described distance measuring sensor is reflective infrared distance sensor, radar ranging sensor, ultrasonic distance-measuring sensor, laser range sensor, magnetic distance measuring sensor or optical fiber distance measuring sensor.
Preferably, described electric-controlled switch is relay, and described shunt lead is connected between two rail by relay, and described relay is electrically connected with described control desk.
Further, described shunt lead is connected between two rail by 3 relays in parallel, and described 3 relays in parallel are electrically connected with described control desk respectively.
Preferably, this system also comprises control center, in the time that control desk judges that this track circuit section is occupied, send occupied information to described control center, described control center shows the described occupied information clear running condition of recognizing current track of interior staff that makes to stand.Described control center, also for described occupied information is stored, is inquired about for staff in station.
Described electric-controlled switch is normally closed switch, and in the time of breakdown of equipment, electric-controlled switch is closure state, realizes fault-safety principle.
compared with prior art, beneficial effect of the present invention: the system that the present invention is based on distance measuring sensor solution station inner orbit section shunting badness adopts the technical scheme different from existing main flow scheme, reliability, safe, and cost is low, is simple and easy to implement.The present invention adapts to track circuit growth requirement, on solution track branch poor road, has striden forward again a small step.
brief description of the drawings:
Fig. 1 is the system architecture schematic diagram in the embodiment of the present invention;
Fig. 2 is the concrete deployment scenarios schematic diagram of the distance measuring sensor in the embodiment of the present invention;
Fig. 3 is the principle schematic of the distance measuring sensor range finding in the embodiment of the present invention;
Fig. 4 is the distance measuring sensor internal circuit block diagram in the embodiment of the present invention;
Fig. 5 is existing track circuit principle schematic.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology realizing based on content of the present invention all belong to scope of the present invention.
Due to the track circuit section in seldom mule carriage, due to the mating surfaces of wheel-rail or covered dust or rail level seriously gets rusty, hinder and when existing track circuit is normally worked, formed C/LOOP and cause track circuit shunting badness, even when rolling stock passes through track section, the track relay of this section can not reliably fall, and control desk does not show red band.The auxiliary existing track circuit (referring to Fig. 5) of the present invention completes orbit occupancy judgement, it is for the bad problem of track branch, utilizing train bottom in the time of train occupation station track circuit section is this limited principle to the distance of sleeper, by distance measuring sensor, sleeper in track circuit section is monitored in real time to train distance from bottom, obtain the situation of orbit occupancy by the processing of control desk, connect steel rail line according to taking situation by the method for electric-controlled switch control shunt lead again, realize effectively along separate routes, reach similar train axle and form effect along separate routes.Shunt lead is a kind of wire, and its effect is equivalent to the along separate routes axletree of train when section of train injection, by shunt lead, two rail bondings is linked together, and controls whether two rail of conducting of shunt lead by electric-controlled switch.Illustrate the present invention below in conjunction with accompanying drawing.
The system based on distance measuring sensor solution station track circuit section shunting badness as Figure 1-3, comprises at least two distance measuring sensors 1, control desk 2 and shunt lead 6.Described at least two distance measuring sensors 1 are for detecting in real time distance value the output that in track circuit section, sleeper 3 arrives train bottom.Control desk 2 is at least two distance values that distance measuring sensor 1 is exported described in receiving, judge according to described distance value whether train takies this track circuit section, if, described control desk 2 outputs a control signal to electric-controlled switch 4 and makes electric-controlled switch 4 move conducting shunt lead 6, if not, described control desk 2 outputs a control signal to electric-controlled switch 4 and makes electric-controlled switch 4 action disconnection shunt leads 6.Described shunt lead 6 is positioned at outside, two ends, track circuit section left and right, its series connection rear both ends of electric-controlled switch 4 connect respectively the rail 5 in described track circuit section, in the time that track circuit section left end is sent a car, described control desk 2 is controlled two rail that conducting left side shunt lead 6 connects, the 6 not conductings of right side shunt lead; In the time that track circuit section right-hand member is sent a car, described control desk 2 is controlled two rail that conducting right side shunt lead 6 connects, the 6 not conductings of left side shunt lead.In the present invention, in the time of train occupation track section, two rail of shunt lead 6 conducting, are equivalent to by wheel shaft along separate routes, play the effect that auxiliary existing track circuit takies judgement, after conducting, existing track circuit forms C/LOOP, and the track relay (not shown) in track circuit falls, track circuit is in a point line state, represent that track circuit is occupied, so just can not drive train into toward this section, ensure safety.
Concrete, in the present embodiment, described at least two distance measuring sensors 1 are installed on the sleeper box place in track circuit section rail 5, and do not exceed rail rail plane (place between two sleepers 3 is in sleeper box), ensure the reliability service of distance measuring sensor 1, can not encounter train bottom.Referring to Fig. 2, lay distance measuring sensor 1 at head end and 3 continuous sleeper box places of tail end (being two ends, left and right) of described track circuit section respectively, each distance measuring sensor 1 is electrically connected with described control desk 2 respectively.Head end and tail end at section are laid respectively three distance measuring sensors 1, are to utilize three methods of getting two redundancies for judging the train track section of whether entering, designing three distance measuring sensor objects, improve the reliability that takies judgement.Centre portion between head end and the tail end of described track circuit section is laid a distance measuring sensor 1 every 4m.Conventionally train single-unit car length is approximately 12.5 meters, centre portion at track is laid a distance measuring sensor every 4m, ensure after train injection section, single-unit compartment at least can shelter from three distance measuring sensors, even if wherein there is a distance measuring sensor to break down, also can utilize three methods of getting two redundancies to judge train occupation this section, good reliability.Distance measuring sensor 1 described in the preferred embodiment of the present invention adopts reflective infrared distance sensor, can certainly be other any distance measuring sensors, as radar distance measuring sensor, ultrasonic distance-measuring sensor, laser range sensor, magnetic distance measuring sensor or optical fiber distance measuring sensor.Referring to Fig. 4, reflective infrared distance sensor is to integrate infrared transmitter and infrared receiving circuit, inner by concussion loop, the institutes such as reception and signal amplification shaping circuit form, can detect the object in the certain limit of front with noncontact form, the light that the luminotron of transmission circuit sends is modulated infrared, because transmission distance and the radiative power of light have relation, when power higher, the distance of transmission is just far away, therefore adopt and be adjusted to infrared ray to obtain the higher light pulse power of peak value, and can reduce the impact of ambient light and electric noise, detecting reliability is high.But optical signal is still very weak, through photoelectricity change produce electric signal pulse amplitude also just at several mV between tens mV, so Design enlargement device, only have through amplification could be to signal processing.Become direct current signal through the impulse singla amplifying through demoder detecting circuit, and then become low and high level by a voltage comparator circuit conversion.In order to improve the accuracy of measurement, the adoptor top of described reflective infrared distance sensor is provided with filter, just only have the particular light ray that the power valve of reflective infrared distance sensor sends can see through filter, all the other disturb light cannot be through reception.
In the embodiment of the present invention, described control desk 2 adopts micro controller system or other processor chips to realize, control desk 2 can be installed on track rail 5 sides, it receives the signal that distance measuring sensor 1 is exported, and the conducting of sending control command control shunt lead 6, the signal of distance measuring sensor 1 is transferred to control desk 2 by photoelectric isolating circuit (not shown), object is in order to make isolation mutually between input and output, electric signal transmission has the features such as one-way, thereby obtain good electrical isolation capabilities and antijamming capability, it is also (to be connected between control desk and electric-controlled switch by photoelectric isolating circuit that while control desk 2 sends control command, figure does not show), object has the electric interference being connected and cause in order to prevent external high pressure circuit and low-voltage control circuit.Control desk 2 specifically judges whether train takies this track circuit section and be: if described distance value in predetermined threshold range, this track circuit section of train occupation, if not, vacant this track circuit section of train.In the time of the inner orbit section of train occupation station, the described distance value D conventionally detecting is 0.3 meter to 1.2 meters scope (referring to Fig. 3), and in the time that station inner orbit section is idle, distance is infinity, can judge thus orbit occupancy situation.
Electric-controlled switch 4 described in the embodiment of the present invention is relay preferably, described shunt lead 6 is connected between two rail 5 by relay, described relay is electrically connected with described control desk 2, between relay and described control desk 2, photoelectric isolating circuit can be set, and strengthens antijamming capability.Further, described shunt lead 6 is connected to (not shown) between two rail by 3 relays in parallel, and described 3 relays in parallel are electrically connected with described control desk 2 respectively.Under the environment of station, exist the situations such as vibrations, impact all likely to cause reliably adhesive of relay, so adopt, relay is in parallel to be used, and improves the reliability that circuit is connected.Three relays can form three paths, increase the reliability connecting, even if one of them lost efficacy, also can ensure normal work.Use in parallel three relays, the failure rate that makes to get an electric shock reduces, and especially judges this important step at train occupation, if the fiduciary level of the relay of selecting only has 90%, when fiduciary level after three parallel connections is 99.9%.
Shunt lead 6 is positioned at outside, two ends, a section left and right of track circuit, is respectively equipped with at least two shunt leads 6 and is connected between two rail 5 near the outside, two ends of each section, can ensure the reliable operation of this system.Shunt lead 6 is all connected in series relay, adopts LJQX-62F relay in the present embodiment, and the break-make of shunt lead 6 is controlled by relay LJQX-62F, and relay is driven and controlled (not shown) by photoelectrical coupler TLP281-4.Photoelectrical coupler TLP281-4 left side connects the output voltage signal of control desk micro controller system, control conducting and the shutoff of photoelectrical coupler by micro controller system output low level voltage signal, and then the conducting of control relay first siding ring, conducting and the shutoff of being controlled shunt lead by relay secondary side connect two rail, the auxiliary arbitration functions that takies that realizes track circuit.In order to ensure functional reliability, improve antijamming capability, between control desk and relay (being generally high-current relay), little current relay AJW7212 can be set, worked by little current relay control high-current relay.
Because shunt lead 6 arranges at the two ends, left and right of a section, when control relay conducting shunt lead 6, be according to This train is bound for XXX information conducting in face of This train is bound for XXX the nearer shunt lead of that one end distance train.Therefore This train is bound for XXX to need judgement.In the time of first distance measuring sensor of train process, utilize timer to carry out timing to the needed time of train driving fixed range, calculate thus the velocity information of train driving.Utilize train in theory to carry out hexadecimal code through the low and high level forming in multiple distance measuring sensor processes, the low and high level coded message gathering with reality compares, thereby judge the travel direction of train, when train sails into from left side, will produce successively under normal circumstances following coded sequence: E0,60,20,00, when control desk detects that such coded sequence is judged to be train and sails into from section left side successively, and when E0, C0,80 being detected successively, judging that train sails into from section right side 00 time.
While sending a car on the left of being judged as, if judge train occupation this section, on the left of controlling by master control board 2, normally opened relay node closures, right side relay node still disconnect, thereby make to connect in face of the shunt lead of train directions, and opposite side shunt lead disconnects; And in the time sending a car in right side, still disconnect by master control board control 2 right side normally opened relay node closures, left side relay node, thereby making in face of the shunt lead of train directions to connect, opposite side shunt lead disconnects.The axletree of train when shunt lead effect is equivalent to train injection shunt section, by shunt lead, relay, two rail are linked together, control whether two rail of conducting of shunt lead by relay, when shunt lead is communicated with after two rail, existing track circuit
'strack relay action, aspect is red light, represents that section is occupied.Shunt lead is set like this, the realization of considering coding information: in the time sending a car in left side, by taking judgement, connect left side shunt lead, left side forms C/LOOP like this, aspect red band, track circuit section is occupied, and coding carrier wave can be gathered by train receiving end by C/LOOP, passes to decoded rear demonstration front aspect information on train, convenient prompting train crews control train is gone slowly etc., to ensure train safe injection section.
Preferably, can in shunt lead 6, serial access a hand switch (not shown), in the time of fault, artificial judgment trouble point trouble-shooting, disconnects hand switch and just can make designed solution shunting badness system ineffective.
Preferably, this system also comprises control center 7, in the time that control desk 2 judges that this track circuit section is occupied, send occupied information to described control center 7, described control center 7 shows the described occupied information clear running condition of recognizing current track of interior staff that makes to stand.Further, described control center 7, also for described occupied information is stored, is inquired about for staff in station.Described control desk 2 is preferably communicated by letter with control center 7 by GPRS module, GPRS module can be integrated on control desk, also can arrange separately, in order to reduce power supply voltage ripple, control desk is also provided with integrated regulator, guarantees that processor chips and the GPRS module for power supply on it is reliable and stable.Can certainly adopt other signalling methodss such as 3G to communicate by letter with control center.The communication computer that control center 7 can have memory function by one or more forms.
In another embodiment of the present invention, described electric-controlled switch is selected normally closed switch relay, in the time that track circuit section is idle, electric-controlled switch (normally closed switch relay) is for picking up state, and shunt lead disconnects, when track circuit section takies, electric-controlled switch is full state, shunt lead conducting; When in the situation that this ancillary system of breakdown of equipment lost efficacy, described electric-controlled switch is owing to selecting normally closed switch relay, in the time of fault, shunt lead is conducting, and the normal work of original track circuit sends out a warning always, and now this section of the system failure can not drive train into, therefore, there will not be accident, quite safe, thus realize " fault-safety principle ".In the present invention, utilize shunt lead shunt and Railway wheelset to walk abreast along separate routes, safe reliability is high.
It is meter shaft, 3Vization, high-voltage pulse track circuit, rail spraying etc. that Current Domestic is processed the bad main flow processing scheme of track branch.Therefore, adopt the circuit of existing installation for great majority, still adopt track circuit to detect orbit occupancy state and transmit railway information.The system that the present invention is based on distance measuring sensor solution station inner orbit section shunting badness adapts to track circuit growth requirement just, adopt the technical scheme different from existing main flow scheme, reliability, safe has striden forward again a small step on solution track branch poor road.
The inventor uses for reference forefathers' experience, track circuit and sensor device are combined, adopt micro controller system or other general processors to form master control board designed path section shunting badness system, solving the bad scheme of track branch based on distance measuring sensor monitoring equipment is a set of subplan on the basis that does not change original track circuit, in the time of track circuit shunting badness, monitor whether taking of train by distance measuring sensor, control shunt lead and connect two rail, the auxiliary judgement that takies that realizes train.The present invention increases sensor device on existing track circuit state basis, pressing not dead section sensor installation equipment, train via sensor is taken to identification, judge processing by master control board again, train traffic control personnel can check by track circuit monitoring system, facilitate train traffic control personnel to dispatch arrangement.Auxiliary Track circuit of the present invention completes and takies judgement, has improved alerting ability, the extensibility of track circuit, compares and has reduced significantly cost, for the application of track circuit shunting badness equipment later provides new thinking with other renovation scheme.
By reference to the accompanying drawings the specific embodiment of the present invention is had been described in detail above, but the present invention is not restricted to above-mentioned embodiment, in the spirit and scope situation of claim that does not depart from the application, those skilled in the art can make various amendments or remodeling.
Claims (10)
1. a system that solves station track circuit section shunting badness based on distance measuring sensor, is characterized in that, comprising:
At least two distance measuring sensors, also export to the distance value of train bottom for detecting in real time sleeper in track circuit section;
Control desk, be used for the distance values of at least two distance measuring sensor outputs described in receiving, judge according to described distance value whether train takies this track circuit section, if, described control desk outputs a control signal to electric-controlled switch and makes electric-controlled switch action conducting shunt lead, if not, described control desk outputs a control signal to electric-controlled switch and makes electric-controlled switch action disconnection shunt lead;
Shunt lead, be positioned at outside, two ends, track circuit section left and right, after its series connection electric-controlled switch, both ends connect respectively the rail in described track circuit section, in the time that track circuit section left end is sent a car, two rail that described control desk control conducting left side shunt lead connects, right side not conducting of shunt lead; In the time that track circuit section right-hand member is sent a car, two rail that described control desk control conducting right side shunt lead connects, left side not conducting of shunt lead.
2. the system that solves station track circuit section shunting badness based on distance measuring sensor according to claim 1, it is characterized in that, described control desk judges according to described distance value whether train takies this track circuit section and be specially: if described distance value is in predetermined threshold range, this track circuit section of train occupation, if not, vacant this track circuit section of train.
3. the system that solves station track circuit section shunting badness based on distance measuring sensor according to claim 1, it is characterized in that, described at least two distance measuring sensors are installed on the sleeper box place in track circuit section rail, and do not exceed rail rail plane.
4. the system that solves station track circuit section shunting badness based on distance measuring sensor according to claim 3, it is characterized in that, the sleeper box place that described at least two distance measuring sensors are installed in track circuit section rail is specially: lay distance measuring sensor at the head end of described track circuit section and 3 continuous sleeper box places of tail end respectively, described distance measuring sensor is electrically connected with described control desk respectively.
5. the system that solves station track circuit section shunting badness based on distance measuring sensor according to claim 4, is characterized in that, the centre portion between head end and the tail end of described track circuit section is laid a distance measuring sensor every 4m.
6. according to the system based on distance measuring sensor solution station track circuit section shunting badness described in claim 1 to 5 any one, it is characterized in that, described distance measuring sensor is reflective infrared distance sensor, radar ranging sensor, ultrasonic distance-measuring sensor, laser range sensor, magnetic distance measuring sensor or optical fiber distance measuring sensor.
7. according to the system based on distance measuring sensor solution station track circuit section shunting badness described in claim 1 to 5 any one, it is characterized in that, described electric-controlled switch is relay, described shunt lead is connected between two rail by relay, and described relay is electrically connected with described control desk.
8. the system that solves station track circuit section shunting badness based on distance measuring sensor according to claim 7, it is characterized in that, described shunt lead is connected between two rail by 3 relays in parallel, and described 3 relays in parallel are electrically connected with described control desk respectively.
9. according to the system based on distance measuring sensor solution station track circuit section shunting badness described in claim 1 to 5 any one, it is characterized in that, also comprise control center, in the time that control desk judges that this track circuit section is occupied, send occupied information to described control center, described control center shows the described occupied information clear running condition of recognizing current track of interior staff that makes to stand; Described control center, also for described occupied information is stored, is inquired about for staff in station.
10. according to the system based on distance measuring sensor solution station track circuit section shunting badness described in claim 1 to 5 any one, it is characterized in that, described electric-controlled switch is normally closed switch, in the time of breakdown of equipment, electric-controlled switch is closure state, realizes fault-safety principle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410223003.1A CN103963801A (en) | 2014-05-23 | 2014-05-23 | System for solving poor shunting problem of in-station track circuit zone based on distance measuring sensors |
| CN201510036882.1A CN104527725B (en) | 2014-05-23 | 2015-01-26 | The system of station track circuit section shunting badness is solved based on distance measuring sensor |
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| CN201410223003.1A CN103963801A (en) | 2014-05-23 | 2014-05-23 | System for solving poor shunting problem of in-station track circuit zone based on distance measuring sensors |
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| CN201510036882.1A Active CN104527725B (en) | 2014-05-23 | 2015-01-26 | The system of station track circuit section shunting badness is solved based on distance measuring sensor |
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2015
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Also Published As
| Publication number | Publication date |
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| CN104527725B (en) | 2016-07-06 |
| CN104527725A (en) | 2015-04-22 |
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Application publication date: 20140806 |