CN204055828U - Track section occupancy monitoring system - Google Patents
Track section occupancy monitoring system Download PDFInfo
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- CN204055828U CN204055828U CN201420548538.1U CN201420548538U CN204055828U CN 204055828 U CN204055828 U CN 204055828U CN 201420548538 U CN201420548538 U CN 201420548538U CN 204055828 U CN204055828 U CN 204055828U
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Abstract
The utility model discloses a kind of track section occupancy monitoring system.This system can comprise: the multiple weight meter axial organs being arranged on all of the port of section, and when wheel is through this weight meter axial organ, weight meter axial organ exports the signal representing wheel process; Counting machine, receives the signal of the expression wheel process from weight meter axial organ, thus counts the wheel through this weight meter axial organ; And first judging unit, judge whether described section is in seizure condition according to the count results of described counting machine.Track section occupancy monitoring system disclosed in the utility model has that cost is low, reliability is high, applicability is wide, is easy to construction and is convenient to safeguard, be not subject to the advantages such as weather environment impact.
Description
Technical field
The utility model relates to the railway system, particularly, relates to a kind of track section occupancy monitoring system.
Background technology
Usually, when a certain track section is taken by car, need track relay to fall, to implement " fault-safety principle principle ".Track circuit shunting badness refers to track circuit rail level because bad conducting objects impact etc. cause the track relay controlling this track section when vehicle takies track section normally not fall, and causes interlocking of signals to lose efficacy.This can cause the control/dispatching system of railway to send false command, and the section such as making car take handles train reception and departure or shunting route, and this is breakneck, even may cause serious car accident.Therefore, confirm that the occupancy of track section is directly connected to the safe operation of the railway system.
For realizing the accurate judgement to track section occupancy, to solve the bad problem of track branch, relevant railway unit takes many kinds of measures in succession.The bad major way of current solution track branch comprises:
(1) electronic cartridge mode, namely the release factor of track circuit is increased by intelligent controller, in practical operation, track circuit job insecurity may be caused because its sensitivity is too high and affect opening time of track circuit, and after the sample line broken string of protection box, its drop-off to pick-up radio can recover former state;
(2) 3Vization mode, namely realize the station track at coding station and section with a switch or switches adopts two chokes double track bar phase detecting track circuit at attached wires of AC electrified section, which may comprise track relay and protection box and track circuit mismatch, increases power thus existing power supply panel etc. is very difficultly met the demands, make cab signal short circuit current be reduced to half etc. by Problems existing;
(3) high-voltage pulse mode, namely improve to obtain high-voltage pulse track circuit to the asymmetric track circuit of existing high pressure, which is not suitable for UM71, and the problems such as there will be " sudden strain of a muscle red band " that is in operation.
In addition, above-mentioned three kinds of methods all need to carry out larger transformation to existing track circuit, and its device cost and construction cost are very high.Except above-mentioned three kinds of technology, part railway unit also attempts metal spray coating technique, melting and coating technique to be applied to Rail Surface to reduce shunting badness accident, but actual effect is unsatisfactory.
In addition, the technology that the institute substantially adopted at present is improved shunting badness be all utilization vehicle by time make wheel and interorbital carry out being electrically connected fetching and judge that whether corresponding track section occupied, its result is vulnerable to the impact of the traction current of locomotive.And because track accumulated snow, the phenomenon such as to get rusty at track Surface Creation insulating barrier, also can affect the accuracy of judgement greatly.
Utility model content
The purpose of this utility model is to provide a kind of system, this system can utilize the gravity of vehicle but not wheel and interorbital be electrically connected to fetch judge that whether track section occupied, and this system is also applicable to the track circuit of multiple types and multiple rail type.
To achieve these goals, the utility model provides a kind of track section occupancy monitoring system, this track section occupancy monitoring system comprises: the multiple weight meter axial organs being arranged on the port of section, when wheel is through described weight meter axial organ, described weight meter axial organ exports the signal representing wheel process; Counting machine, receives the signal of the described expression wheel process from described weight meter axial organ, thus counts the described wheel through described weight meter axial organ; And first judging unit, judge whether described section is in seizure condition according to the count results of described counting machine.
Preferably, this weight meter axial organ can comprise two contacts, and when two contacts, this weight meter axial organ exports the signal representing wheel process.
Preferably, the two ends detecting resistance are electrically connected to two contacts respectively.
Preferably, weight meter axial organ can be installed in inside the web of the rail.
Preferably, the summit 18 ~ 22mm lower than rail level place plane of mounted weight meter axial organ.
Preferably, the top of this weight meter axial organ can be roller.
Preferably, at each port of section to be measured, at least two weight meter axial organs can be installed.
Preferably, this track section occupancy monitoring system also can comprise: track relay voltage measurement unit, for measuring the coil voltage of track relay; Track relay voltage analysis unit, the coil voltage confirmed standard voltage that can record according to track relay voltage measurement unit; And second judging unit, according to normal voltage and the coil voltage recorded, the state of this section can be judged.
Preferably, this track section occupancy monitoring system also can comprise: the 3rd judging unit, can the judged result of comprehensively described first judging unit and described second judging unit, judges whether described section is in seizure condition.
Preferably, this track section occupancy monitoring system also can comprise warning.
By technique scheme, the weight meter axial organ being arranged on track section port can be utilized to know the wheel count entering and leave this section, take situation with what judge track section.Meanwhile, also in conjunction with the analysis of the coil voltage to track relay, the reliability of judged result can be improved further.Because the utility model is not utilize wheel and interorbital electrical connection to measure, be not therefore subject to the impacts such as environment, weather and traction current.The utility model also have be easy to construction, be convenient to safeguard, the advantage such as widely applicable.
Other features and advantages of the utility model are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification sheets, is used from explanation the utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the schematic diagram of the track section occupancy monitoring system according to a preferred implementation of the present utility model;
Fig. 2 is the structural representation of the weight meter axial organ according to a preferred implementation of the present utility model;
Fig. 3 is the layout schematic diagram of the weight meter axial organ according to a preferred implementation of the present utility model;
Fig. 4 is the schematic diagram of application according to a kind of railway dispatching system of track section occupancy monitoring system of the present utility model; And
Fig. 5 applies the diagram of circuit of monitoring track section occupancy according to track section occupancy monitoring system of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
In the utility model, when not doing contrary explanation, refer to the side of the web of the rail towards opposite side rail inside the web of the rail, rail level refers to the upper surface of rail.
According to an aspect of the present utility model, provide a kind of track section occupancy monitoring system, this system can comprise: the multiple weight meter axial organs being installed in all of the port of section, and when wheel is through this weight meter axial organ, weight meter axial organ exports the signal representing wheel process; Counting machine, receives the signal of the expression wheel process from weight meter axial organ, thus counts the wheel through this weight meter axial organ; And first judging unit, if the quantity of the quantity entering the wheel of this section and the wheel that leaves this section is equal, then judge that this section is in idle condition; Otherwise, judge that this section is in seizure condition.
Fig. 1 is the schematic diagram of the track section occupancy monitoring system according to a preferred implementation of the present utility model.Suppose that section to be measured has two ports.As shown in the figure, weight meter axial organ 101a and 101b is installed in a port of section to be measured, and weight meter axial organ 101c and 101d is installed in another port of section to be measured.Weight meter axial organ 101a and 101c can be considered as one group of weight meter axial organ, and weight meter axial organ 101b and 101d be considered as another group weight meter axial organ, the identical and reference each other of two groups of weight meter axial organs effect, to guarantee that Output rusults is reliable.Also as required, one group of weight meter axial organ only can be set or arrange more than two groups of weight meter axial organs.When pressure wheel is at certain weight meter axial organ, this weight meter axial organ senses the gravity of vehicle and exports the signal representing wheel process.The signal of counting machine 102a to the expression wheel process from weight meter axial organ 101a and 101c counts, namely to the wheel count through these two weight meter axial organs.Such as, if vehicle enters this section from the port being provided with weight meter axial organ 101a and 101b, this section is left from the port being provided with weight meter axial organ 101c and 101d, the signal that then counting machine 102a can be set to receiving from weight meter axial organ 101a adds counting, and subtracts counting to the signal received from weight meter axial organ 101c.When count results is 0 (supposing that count results is set to 0 without under the initial situation of car in section), then show that the wheel count entering this section and leave this section is equal; Otherwise, then show that the wheel count entering this section and leave this section is unequal.Similarly, counting machine 102b counts the signal from weight meter axial organ 101b and 101d in the mode similar to counting machine 102a.When the count results of counting machine 102a with 102b is different, can resets to counting machine 102a and 102b and/or send alerting signal.
According to another embodiment of the present utility model, also can be counted respectively by the output signal of different counting machines to the weight meter axial organ being positioned at section different port to be measured, when the count results sum of the counting machine counted through wheel to entry port equals, to the count results sum of the counting machine counted through wheel leaving port, can think that the quantity of the wheel entering and leave this section is equal; Otherwise, then think that the quantity of the wheel entering and leave this section is unequal.
In present embodiment, the first judging unit 103 receives the count results from counting machine 102a and 102b, if these two count results are identical, and all represents that the quantity of the wheel entering this section and leave this section is equal, then judges that this section is idle condition; If these two count results are identical, and all represent that the quantity of the wheel entering this section and leave this section is unequal, then judge that this section is seizure condition; If these two count results are unequal, then can reporting fault information.
In this preferred implementation, also by the measurement of the coil voltage to track relay with analyze the reliability improving this monitoring system further.
Track relay voltage measurement unit 104 can be used for the coil voltage measuring track relay, and track relay voltage analysis unit 105 can be analyzed the coil voltage that track relay voltage measurement unit 104 records, with the voltage that settles the standard.Usually, when section is idle, the coil voltage of the track relay of its correspondence should between 15V ~ 23V, can be different for this value of different track circuit.In present embodiment, track relay voltage measurement unit 104 can carry out 25 voltage measurements each second.
The initial condition that can arrange section to be measured is idle condition.After system starts, if the result recorded in certain hour section (such as corresponding to the time of measuring for 5 times) is all greater than certain threshold value (such as, 16V) and fluctuation is less than preset range (such as fluctuation be less than 5%), then track relay voltage analysis unit 105 can using the aviation value of voltage that records in during this period of time as normal voltage.When section to be measured is considered to the free time, track relay voltage analysis unit 105 can constantly revise this normal voltage according to most recent measurements.Such as, as long as all voltages recorded in nearest certain hour section all meet and are greater than above-mentioned threshold value and fluctuation is less than the condition of above-mentioned preset range, track relay voltage analysis unit 105 can using the aviation value of voltage that records in this time period as new normal voltage.Usually, when section is idle, this normal voltage is comparatively stable, fluctuates very little.
If floating downward of the magnitude of voltage comparison with standard voltage newly recorded exceedes predetermined amplitude (such as, 15% of Current standards voltage), then the second judging unit 106 can judge that this section is in seizure condition.When section to be measured considered to be in seizure condition, if all magnitudes of voltage recorded in a longer Preset Time (such as 5 seconds) and the difference between normal voltage are all less than preset range (such as, be less than 5%), then the second judging unit 106 can judge that this section is in idle condition.When section to be measured considered to be in seizure condition, normal voltage does not upgrade.
The judged result of comprehensive first judging unit 103 of the 3rd judging unit 107 and the second judging unit 106, to confirm the occupancy of section to be measured.If the first judging unit 103 and the second judging unit 106 all think that section to be measured is in idle condition, then the exportable expression of the 3rd judging unit 107 section to be measured is in the signal of idle condition; If the first judging unit 103 and the second judging unit 106 all think that section to be measured is in seizure condition, then the exportable expression of the 3rd judging unit 107 section to be measured is in the signal of seizure condition; If the judged result of the first judging unit 103 and the second judging unit 106 is inconsistent, then the 3rd judging unit can reporting fault information.
When different to the count results of output signal of the weight meter axial organ being positioned at same port, or it is different to the count results of the weight meter axial organ of difference group, or when the situations such as the judged result of the judged result based on the output signal of weight meter axial organ and the coil voltage based on track relay is inconsistent occur, alarm unit 108 all can send alarm message.Now, may need to reset to relevant device or overhaul, and the mode of being reconnoitred by manual site may be needed to determine, and whether this section is occupied.
Fig. 2 is the structural representation of the weight meter axial organ according to a preferred implementation of the present utility model.As shown in the figure, weight meter axial organ has contact 201a and 201b.When the power exceeding certain threshold value is applied to graphic weight meter axial organ from the top down at vertical direction, contact 201a and 201b connects, and makes weight meter axial organ export corresponding signal (such as, impulse singla).After the power be applied thereto disappears, under the effect of spring 203, contact 201a and 201b disconnects.When the power being less than this value being applied to above weight meter axial organ, contact 201a can not be depressed.As shown in the figure, the top of weight meter axial organ is touching roller 202, to reduce the friction between weight meter axial organ and wheel, increases the service life of weight meter axial organ.The two ends detecting resistance 204 are connected with contact 201a and 201b, respectively even if make, when 201a and 201b disconnects, still to include in the loop of connection by this weight meter axial organ, to detect this weight meter axial organ.In order to save power, detecting resistance 204 can be the resistance that resistance is larger, such as, the resistance of 1k Ω (kiloohm) can be selected as detection resistance.
Fig. 3 is the layout schematic diagram of the weight meter axial organ according to a preferred implementation of the present utility model.Two weight meter axial organs 301 are all furnished with at three port A, B, C places of graphic turnout section.Weight meter axial organ can be disposed in the position of distance track-end insulation 0.2m (rice) ~ 0.5m.By modes such as fixing ears and bolt of rear end plates, weight meter axial organ 301 is fixed on the inner side of the web of the rail.The lower surface 30mm lower than the lower surface of the centre portion of wheel of the inner edge of usual train wheel, therefore can make the top of weight meter axial organ 301 lower than left and right, rail level place plane 18 ~ 22mm (millimeter) when mounted.According to theory deduction and practical proof, when the top of weight meter axial organ 301 is lower than rail level place plane 18 ~ 22mm (millimeter) left and right, it accurately can sense the wheel that passes through and the loss suffered is less.In present embodiment, the output of weight meter axial organ is sent to other equipment such as counting machine by transmission cable.Considering the actual conditions of field apparatus, in order to reduce cost of installation, the transmission cable being no more than 3 cores can be selected herein.
Fig. 4 is the schematic diagram of application according to a kind of railway dispatching system of track section occupancy monitoring system of the present utility model.Wherein, track relay 402 can be regarded as the afterbody of track circuit 401, track relay 402 and be all connected to track repeater relay 404 according to track section occupancy monitoring system 403 of the present utility model.Track repeater relay 404 is connected to scheduling maincenter 405.If do not have track section occupancy monitoring system 403, then track repeater relay 404 is directly controlled by track relay 402.When certain section is taken by vehicle, if track relay 402 fails normally to fall, then track repeater relay 404 also can not fall, and this section is idle to cause scheduling maincenter 405 to be thought by mistake, the instructions such as shunting route may be sent to this section, thus cause accident to occur.And after this dispatching system being applied to according to track section occupancy monitoring system 403 of the present utility model, because track section occupancy monitoring system 403 can judge that whether respective segments is occupied exactly, when track relay 402 fails normally to fall, the occupied information of track section occupancy monitoring system 403 this section exportable.Track repeater relay 404 can fall according to the output of track section occupancy monitoring system 403 and/or confirm (such as further, by manually reconnoitring confirmation), to avoid providing mis-information to scheduling maincenter 405, thus avoid the fault because track circuit shunting badness causes as far as possible.
Fig. 5 applies the diagram of circuit of monitoring track section occupancy according to track section occupancy monitoring system of the present utility model.
In step sl, weight meter axial organ is subject to wheel gravity effect, and exports the signal representing wheel process.
In step s 2, the signal by the expression wheel process exported gravity wheel counting apparatus counts, thus is entered and leave the quantity of the wheel in section to be measured.Available different counting machine is to the entry port in section to be measured and leave counting respectively through wheel of port; Also can with same counting machine to entry port and leave port through wheel count, now, for entry port, can adopt and add counting, and for leaving port, can adopt and subtract counting.
In step s3, the seizure condition of section can be judged based on the count results of the output signal to gravity wheel counting apparatus.If the wheel count entering this section is equal with the wheel count leaving this section, then can judge that this section is in idle condition, otherwise, can judge that this section is in seizure condition.
In order to improve the reliability of monitoring result, also can judge further based on the coil voltage of track relay.In step s 4 which, the coil voltage of track relay corresponding to section the occupancy of this section can be judged.Such as, can with the coil voltage of the frequency measurement track relay of 20 ~ 25 times per second, and can according to the observed reading confirmed standard voltage when section is considered to the free time, when coil voltage compared to normal voltage float downward exceed predetermined amplitude time, can judge that this section is occupied.When this section considered to be in seizure condition, if all coils magnitude of voltage measured within the longer time (such as 5 seconds) all returns near normal voltage, then can judge that this section becomes idle condition from seizure condition.
In step s 5, according to the judged result of the judged result of the output signal based on weight meter axial organ and the coil voltage based on track relay, the occupancy of section to be measured can be confirmed.If these two judged results are consistent, can using this judged result as final judged result; If these two judged results are inconsistent, then alerting signal can be sent.
Can find out from above embodiment, the utility model has that cost is low, reliability is high, applicability is wide, is easy to construction and is convenient to safeguard, be not subject to the advantages such as weather environment impact.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a track section occupancy monitoring system, is characterized in that, this track section occupancy monitoring system comprises:
Be arranged on multiple weight meter axial organs of the port of section, when wheel is through described weight meter axial organ, described weight meter axial organ exports the signal representing wheel process;
Counting machine, receives the signal of the described expression wheel process from described weight meter axial organ, thus counts the described wheel through described weight meter axial organ; And
According to the count results of described counting machine, first judging unit, judges whether described section is in seizure condition.
2. track section occupancy monitoring system according to claim 1, is characterized in that, described weight meter axial organ comprises two contacts, and when described two contacts, described weight meter axial organ exports the signal of described expression wheel process.
3. track section occupancy monitoring system according to claim 2, is characterized in that, the two ends detecting resistance are electrically connected to described two contacts respectively.
4. track section occupancy monitoring system according to claim 1, is characterized in that, described weight meter axial organ is installed in inside the web of the rail.
5. track section occupancy monitoring system according to claim 4, is characterized in that, the summit 18 ~ 22mm lower than rail level place plane of mounted described weight meter axial organ.
6. track section occupancy monitoring system according to claim 1, is characterized in that, the top of described weight meter axial organ is roller.
7. track section occupancy monitoring system according to claim 1, is characterized in that, installs at least two described weight meter axial organs at each port of described section.
8. track section occupancy monitoring system according to claim 1, it is characterized in that, this system also comprises:
Track relay voltage measurement unit, for measuring the coil voltage of track relay;
Track relay voltage analysis unit, according to the described coil voltage confirmed standard voltage that described track relay voltage measurement unit records; And
Second judging unit, according to described normal voltage and the described coil voltage recorded, judges the state of described section.
9. track section occupancy monitoring system according to claim 8, it is characterized in that, this system also comprises:
3rd judging unit, the comprehensively judged result of described first judging unit and described second judging unit, judge whether described section is in seizure condition.
10. the track section occupancy monitoring system according to a claim any in claim 1-9, it is characterized in that, this system also comprises warning.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548538.1U CN204055828U (en) | 2014-09-23 | 2014-09-23 | Track section occupancy monitoring system |
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| CN201420548538.1U CN204055828U (en) | 2014-09-23 | 2014-09-23 | Track section occupancy monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260755A (en) * | 2014-09-23 | 2015-01-07 | 中国神华能源股份有限公司 | Track section occupation condition monitoring system and method |
| CN110793563A (en) * | 2019-11-11 | 2020-02-14 | 交控科技股份有限公司 | Running state detection method of wheel sensor |
-
2014
- 2014-09-23 CN CN201420548538.1U patent/CN204055828U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260755A (en) * | 2014-09-23 | 2015-01-07 | 中国神华能源股份有限公司 | Track section occupation condition monitoring system and method |
| CN110793563A (en) * | 2019-11-11 | 2020-02-14 | 交控科技股份有限公司 | Running state detection method of wheel sensor |
| 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 |
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