CN102358326B - Solve the system of track circuit shunting badness - Google Patents
Solve the system of track circuit shunting badness Download PDFInfo
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- CN102358326B CN102358326B CN201110172162.XA CN201110172162A CN102358326B CN 102358326 B CN102358326 B CN 102358326B CN 201110172162 A CN201110172162 A CN 201110172162A CN 102358326 B CN102358326 B CN 102358326B
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- counting device
- count sensor
- axle count
- track circuit
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Abstract
The present invention discloses a kind of system solving track circuit shunting badness, system comprises the wheel sensor of track circuit, axis-counting device and this axis-counting device, between axis-counting device and described wheel sensor, meter shaft controller is also set, when main track walked by train, described meter shaft controller makes axis-counting device not count, when branch-cut bridge walked by train, described meter shaft controller makes axis-counting device count.The present invention can adopt three axle count sensors can solve the shunting badness problem of section with a switch or switches, and the cost of axle counting system and the complexity of system are reduced all greatly, and in-site installation is also greatly simple; The present invention does not also carry out design improvement to axis-counting device itself, and simplicity of design is easy to use.
Description
Technical field
The present invention discloses and a kind ofly solves the system that has problems in rail application, particularly a kind of system utilizing axis-counting device to solve track circuit shunting badness.
Background technology
Rail transport occupies very important position in people's daily life, occupies very large proportion in overland transport.Because Rail transport belongs to track traffic, the operation scheme adopted due to it is more special, therefore also very high to the requirement of its running environment etc., the particularly important is at one time, same section rail route can only have a row train exist.At present, what be widely adopted is exactly track circuit for detecting the means that on rail, train exists.Whether the circuit that track circuit is formed for conductor with the rail of a lengths of rail circuit, taken by rolling stock for automatic, continuous detecting this section of circuit, also for control signal device or switching device, to ensure the equipment of traffic safety.Whole rail system road network is divided into many block sections according to suitable distance regions, each block section with track insulation connector area every, form a separate track circuit, the initial point in each interval is all provided with livery machine (colored lights formula livery), after train enters block section, and track circuit immediate response, and pass on this interval to have train passage, forbid that message that other trains enter is to livery machine, is now positioned at the livery machine of interval entrance, shows the information that barrier is forbidden immediately.When in block section without train driving time, electric current can flow through relay from power supply via track, and makes its excitatory band contact heel, connects the circuit (livery machine show immediately that safety pass through) of green light.When there being train to sail block section into, electric current is changed one's profession through train axle, and can't flow through relay, relay is loss of excitation because losing electric current, the circuit (it is forbidden that livery machine shows barrier immediately) of contact red light.If track ruptures, therefore track circuit blocks, and causes relay loss of excitation, and same livery machine also can show the forbidden message of barrier, still can ensure train driving safety.When train sails out of whole interval, relay just can be again excitatory, and green light just can light again, and other trains just can enter.But the ubiquitous problem of current track circuit is exactly at track switch place, easily produces the phenomenon of shunting badness.Track circuit shunting badness just refers to track circuit rail level because the track relay controlling this track section when the impact of bad conducting objects causes train or car team to take track can not normally fall, and causes interlocking of signals to lose efficacy.This may cause handling train reception and departure or shunting route to the section having car to take, and the serious consequence caused is exactly car accident.In prior art, the means solving shunting badness employing are mainly and utilize track circuit to coordinate axle counting system to realize, please refer to accompanying drawing 1, at the axle counting system that track switch place installs, usual needs are each on the straight-through main track rail of the both sides, front and back that track switch is located installs an axle count sensor, and the branch-cut bridge at track switch place installs an axle count sensor, and such axle counting system just needs cooperation five axle count sensors to use, no matter be system difficulty, or the complexity of installing is all larger.
Summary of the invention
For the shortcoming of the axle counting system structural load at the above-mentioned track turnout place of the prior art mentioned, the invention provides a kind of system solving track circuit shunting badness with axis-counting device newly, only with three axle count sensors, the Train Wheel on rail is counted, simplify the difficulty of axle counting system structure and site operation.
The technical scheme that the present invention solves the employing of its technical matters is: a kind of system solving track circuit shunting badness, system comprises the wheel sensor of track circuit, axis-counting device and this axis-counting device, between axis-counting device and described wheel sensor, meter shaft controller is also set, when main track walked by train, described meter shaft controller makes axis-counting device not count, when branch-cut bridge walked by train, described meter shaft controller makes axis-counting device count.
The technical scheme that the present invention solves the employing of its technical matters further comprises:
Described wheel sensor is separately positioned on the first axle count sensor on main track and the second axle count sensor, and be arranged on the 3rd axle count sensor in branch-cut bridge; The first described axle count sensor, the second axle count sensor are connected with axis-counting device respectively by two signal line with the 3rd axle count sensor, and described meter shaft controller is connected across in two signal line between described wheel sensor and axis-counting device.
Described meter shaft controller is made up of master cock and votage limit type devices in series.
Described master cock be counter show relay pick up break contact or surely show relay fall break contact, or the anti-table relay of series connection pick up break contact and Ding Biao relay fall break contact, or electronic control switch.
Described votage limit type device is unidirectional stabilivolt or pizo-resistance or bi-directional voltage stabilizing pipe, or is made up of the unidirectional stabilivolt of two pole reversal parallel connections.
Described meter shaft controller is also connected in series with current-limiting resistance.
When main track walked by train, surely relay energized is shown, anti-table relay falls simultaneously, master cock is connected and jumps on two signal wire (SW)s of axle count sensor by votage limit type device, the voltage limiting device of suitable selection appropriate voltage value, makes the signal that axle count sensor senses be clamped to without voltage levvl during wheel; Now, even if there is train to pass through, axis-counting device does not count owing to not receiving signal.If only only fill an axle count sensor on main track and do not fill meter shaft controller, when main track walked by train, axis-counting device will count, owing to only having a wheel sensor, to only have meter so that without counting out, this section forever cannot except clear, though train pass through after the display of this section also take and send out and to let pass other train to this section again.
When branch-cut bridge walked by train, instead show relay energized, surely show relay simultaneously and fall, master cock disconnects and does not jump in two signal line of wheel sensor by votage limit type device, and axis-counting device normally counts.
The invention has the beneficial effects as follows: the vehicle count that the present invention can adopt only three axle count sensors can realize track switch place, the cost of axle counting system and the complexity of system are reduced all greatly, and in-site installation difficulty reduces greatly.
Another beneficial effect of the present invention is: be connected across between wheel sensor and axis-counting device by meter shaft controller, still maintains the path of original signal line, does not change axis-counting device itself, simplifies the design of system and reduces the cost of system.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that axle counting system of the prior art solves shunting badness.
Fig. 2 is the wheel sensor scheme of installation in the present invention.
Fig. 3 is the typical control system block diagram of axle counting system in the present invention.
Fig. 4 is embodiment one electrical schematic diagram in the present invention, and its voltage limiting device is pizo-resistance.
Fig. 5 is embodiment two electrical schematic diagram in the present invention, and its voltage limiting device is bi-directional voltage stabilizing pipe.
Fig. 6 is the embodiment three-circuit sketch in the present invention, and its voltage limiting device is the unidirectional stabilivolt of two reverse parallel connections.
In figure, 1-first leads directly to rail, and 2-second leads directly to rail, 3-turnout rail, 4-first axle count sensor, 5-second axle count sensor, 6-the 3rd axle count sensor, 7-master cock, 8-voltage limiting device, 9-current-limiting resistance.
Detailed description of the invention
The present embodiment is the preferred embodiment for the present invention, and other its principles all are identical with the present embodiment or approximate with basic structure, all within scope.
Please refer to accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5 and accompanying drawing 6, system in the present invention is mainly concerned with the first straight-through rail 1, second straight-through rail 2(first leads directly to rail 1 and the second straight-through rail 2 is also called rail main track) and turnout rail 3(also referred to as branch-cut bridge), turnout rail 3 can by the first straight-through rail 1, second straight-through rail 2 is communicated with, make train can lead directly to rail 1 first, flexible between second straight-through rail 2, namely train can drive on the second straight-through rail 2 by turnout rail 3 from the first straight-through rail 1, also can be driven on the first straight-through rail 1 by turnout rail 3 from the second straight-through rail 2.Straight-through rail 1,2 directly walked by train, or forwards on another rail through turnout rail 3, arranges route determine by watch keeper, and after route sequences, switching device controls to do corresponding actions, surely shows relay and also does corresponding actions with anti-table relay; When route row antiposition, surely show relay and fall, instead show relay energized, branch-cut bridge walked by train; When route registration, surely show relay energized, anti-table relay falls, and main track walked by train.
The first axle count sensor 4 is mainly comprised in system in the present invention, second axle count sensor 5, 3rd axle count sensor 6, axis-counting device and meter shaft controller, in the present embodiment, meter shaft controller is also connected on the signal wire (SW) of axle count sensor and axis-counting device, please refer to accompanying drawing 3, meter shaft controller is made up of a votage limit type device and master cock, please participate in accompanying drawing 4, accompanying drawing 5 and accompanying drawing 6, votage limit type device can adopt unidirectional stabilivolt or pizo-resistance or bi-directional voltage stabilizing pipe, or be made up of the unidirectional stabilivolt of two pole reversal parallel connections, please refer to accompanying drawing 4, votage limit type device in embodiment in accompanying drawing 4 adopts pizo-resistance, please refer to accompanying drawing 5, the votage limit type device in the embodiment in accompanying drawing 5 adopts bi-directional voltage stabilizing pipe, or is called TVS pipe, please refer to accompanying drawing 6, the votage limit type device in the embodiment in accompanying drawing 6 adopts the votage limit type device all become by the unidirectional stabilivolt of two pole reversal parallel connections.Because pizo-resistance, bi-directional voltage stabilizing pipe or the unidirectional stabilivolt by two pole reversal parallel connections are all bi-directional voltage stabilizing devices, during concrete enforcement, due to different from the voltage levels in two signal line that axle count sensor connects, so, as long as closure is correct, the votage limit type device in the present invention also can select employing unidirectional stabilivolt.In the present embodiment, master cock is made up of the anti-contact shown relay or surely show relay, and be turned on or off when anti-table relay and Ding Biao relay pick up contact, and be turned on or off when also falling contact, and these contacts are equivalent to master cock; In the present embodiment, take picking up break contact (contact disconnected when namely relay powers on) or surely show the break contact same table surely relay that picks up that relay falls break contact (contact disconnected during relay electric-loss) or anti-table relay and falling break contact two contact series together as master cock of anti-table relay, or adopt independent electronic control switch, if aerotron, switching valve, relay etc. are as master cock, the break-make of electronic control switch is received and is surely shown relay or instead show Control.
In the present embodiment, first axle count sensor 4 is arranged on one end of the first straight-through rail 1, second axle count sensor 5 is arranged on turnout rail 3,3rd axle count sensor 6 is arranged on one end of the second straight-through rail 2, in the present embodiment, the angle installed between the first axle count sensor 4 and two lengths of rail of the second axle count sensor 5 is obtuse angle, and the angle installed between the 3rd axle count sensor 6 and two lengths of rail of the second axle count sensor 5 is also obtuse angle.In the present embodiment, the first axle count sensor 4 and the second axle count sensor 5 form a section, and the second axle count sensor 5 and the 3rd axle count sensor 6 form a section.In the present embodiment, the first axle count sensor 4, second axle count sensor 5 is connected with axis-counting device respectively by two signal line with the 3rd axle count sensor 6, and namely each axle count sensor is connected with axis-counting device respectively by two signal line.
In the present invention, voltage limiting device can be pizo-resistance, bi-directional voltage stabilizing pipe, TVS pipe and two unidirectional stabilivolt reverse parallel connections formations, please refer to accompanying drawing 4, accompanying drawing 5, accompanying drawing 6; In the present embodiment and accompanying drawing, be specifically described for an axle count sensor, when specifically implementing, the connection mode of each axle count sensor is all identical.
The transmission voltage of axis-counting device usually by detecting axle count sensor judges the state of axle count sensor, and the magnitude of voltage of axle count sensor usually under following several state has following difference:
1, axle count sensor is in normal condition, and does not have wheel through out-of-date, and voltage is now defined as: normality voltage, in the present embodiment, the normality voltage of the axle count sensor selected is 5.3V ~ 7.3V, when specifically implementing, and also can be different according to concrete axle count sensor;
2, axle count sensor is in normal condition, and has wheel through out-of-date, and voltage is now defined as: operating voltage, in the present embodiment, the normality voltage of the axle count sensor selected for being more than or equal to 8.7V, when specifically implementing, also can be different according to concrete axle count sensor;
3, axle count sensor is in the state that gets loose or drop, voltage is now defined as: get loose false voltage, and in the present embodiment, the normality voltage of the axle count sensor selected is for being less than or equal to 4.7V, during concrete enforcement, also can be different according to concrete axle count sensor;
4, two signal line of axle count sensor are for off state, voltage is now defined as: open circuit fault voltage, and in the present embodiment, the normality voltage of the axle count sensor selected is for being more than or equal to 10V, during concrete enforcement, also can be different according to concrete axle count sensor.
Voltage limiting device in the present embodiment can select bi-directional voltage stabilizing pipe, i.e. TVS pipe, or the unidirectional zener diode of two reverse parallel connections also can be selected to form, namely the positive pole of first zener diode is connected with the negative pole of second zener diode, and the negative pole of the first zener diode is connected with the positive pole of second zener diode.In the present embodiment, a current-limiting resistance can also be connected in series with voltage limiting device, when voltage limiting device overvoltage conducting, the damage of other devices can be prevented by current-limiting resistance.In the present embodiment, the voltage stabilizing value of the voltage limiting device selected is 6.3V, and when specifically implementing, the voltage stabilizing value that only need meet pressure-sensitive device is greater than the false voltage that gets loose of axle count sensor.
Master cock in the present embodiment directly adopts the contact instead showing relay or the contact surely showing relay as master cock; Also electronic control switch can be selected, as: aerotron, switching valve or relay etc., utilize train walk the control signal of location or antiposition or represent the break-make of Signal-controlled switch.
Using method of the present invention, when main track walked by train, surely relay energized is shown, anti-table relay falls simultaneously, master cock is connected and receives on two signal wire (SW)s of axle count sensor by votage limit type device, the magnitude of voltage of suitable selection voltage limiting device, makes the signal that wheel sensor senses be clamped to without voltage levvl during wheel; Now, even if there is car to pass through, axis-counting device does not count owing to not receiving signal (now, relying on the seizure condition of track circuit to rail to detect).If only only fill an axle count sensor on main track and do not fill meter shaft controller, when main track walked by train, axis-counting device will count, owing to only having a wheel sensor, to only have meter so that without counting out, this section forever cannot except clear, even if train is also taken by the display of this section and sends out and let pass to this section; When train walks branch-cut bridge (antiposition), anti-table relay energized, surely show relay simultaneously and fall, master cock disconnects and receives on two signal wire (SW)s of wheel sensor not by votage limit type device, axis-counting device normally counts, and is detected by the seizure condition of axis-counting device to this section.
The present invention can adopt three axle count sensors can solve the shunting badness problem of section with a switch or switches, and the cost of axle counting system and the complexity of system are reduced all greatly, and in-site installation is also greatly simple; The present invention does not also carry out design improvement to axis-counting device itself, and simplicity of design is easy to use.
Claims (5)
1. one kind solves the system of track circuit shunting badness, it is characterized in that: described system comprises track circuit, the wheel sensor of axis-counting device and this axis-counting device, between axis-counting device and described wheel sensor, meter shaft controller is also set, when main track walked by train, described meter shaft controller makes axis-counting device not count, when branch-cut bridge walked by train, described meter shaft controller makes axis-counting device count, described wheel sensor is separately positioned on the first axle count sensor (4) on main track and the second axle count sensor (5), and the 3rd axle count sensor (6) be arranged in branch-cut bridge, described the first axle count sensor (4), the second axle count sensor (5) are connected with axis-counting device respectively by two signal line with the 3rd axle count sensor (6), and in two signal line between described each axle count sensor and axis-counting device, cross-over connection has a meter shaft controller.
2. the system of solution track circuit shunting badness according to claim 1, is characterized in that: described meter shaft controller by master cock (7) and votage limit type device (8) in series.
3. the system of solution track circuit shunting badness according to claim 2, it is characterized in that: described master cock be counter show relay pick up break contact or surely show relay fall break contact, or the anti-table relay of series connection pick up break contact and Ding Biao relay fall break contact, or electronic control switch.
4. the system of solution track circuit shunting badness according to claim 2, is characterized in that: described votage limit type device is unidirectional stabilivolt or pizo-resistance or bi-directional voltage stabilizing pipe, or is made up of the unidirectional stabilivolt of two pole reversal parallel connections.
5. the system of solution track circuit shunting badness according to claim 2, is characterized in that: described meter shaft controller is also connected in series with current-limiting resistance (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110172162.XA CN102358326B (en) | 2011-06-24 | 2011-06-24 | Solve the system of track circuit shunting badness |
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| CN201110172162.XA CN102358326B (en) | 2011-06-24 | 2011-06-24 | Solve the system of track circuit shunting badness |
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| CN102358326B true CN102358326B (en) | 2016-02-03 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102815321B (en) * | 2012-08-24 | 2015-05-13 | 深圳市科安达轨道交通技术有限公司 | System for solving poor shunting of track circuit by using axle counting equipment |
| CN103085842B (en) * | 2013-01-23 | 2015-06-03 | 成都铁路通信设备有限责任公司 | Detection system and detection method of straddle type light rail movable crossover line track sections |
| CN110588714B (en) * | 2019-09-29 | 2020-11-27 | 同济大学 | Method and device for judging interference of axle counting magnetic head by traction current and isolation method |
| CN110793563B (en) * | 2019-11-11 | 2021-09-10 | 交控科技股份有限公司 | Running state detection method of wheel sensor |
| CN113071534A (en) * | 2021-04-21 | 2021-07-06 | 湖北恒子工程技术有限公司 | Vector railway wheel axle counter |
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Inventor after: Wang Tao Inventor after: Zheng Yidong Inventor after: Zhang Haixuan Inventor after: Liang Weiquan Inventor after: Liu Weiguo Inventor after: Zhang Fan Inventor after: Guo Fengming Inventor after: Tang Bin Inventor before: Tang Bin |
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