CN110588714A - Method and device for judging interference of axle counting magnetic head by traction current and isolation method - Google Patents
Method and device for judging interference of axle counting magnetic head by traction current and isolation method Download PDFInfo
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- CN110588714A CN110588714A CN201910934485.4A CN201910934485A CN110588714A CN 110588714 A CN110588714 A CN 110588714A CN 201910934485 A CN201910934485 A CN 201910934485A CN 110588714 A CN110588714 A CN 110588714A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000002955 isolation Methods 0.000 title claims abstract description 25
- 238000005191 phase separation Methods 0.000 claims abstract description 29
- 230000006698 induction Effects 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/16—Devices for counting axles; Devices for counting vehicles
- B61L1/169—Diagnosis
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to a method, a device and an isolation method for judging whether a shaft counting magnetic head is interfered by traction current, wherein the judging method comprises the following steps: step S1: acquiring a maximum voltage value of an induction unit of axle counting equipment when a train enters a phase splitting area, and acquiring a first maximum voltage; step S2: acquiring a maximum voltage value of the sensing unit when the train does not reach the axle counting device after entering the phase separation area, and acquiring a second maximum voltage; step S3: acquiring the maximum voltage value of the sensing unit when the train passes through the axle counting device, and acquiring a third maximum voltage of the train; step S4: and judging whether interference exists or not and the interference degree based on the first maximum voltage, the second maximum voltage and the third maximum voltage by combining a working voltage interval when the sensing unit of the axle counting device has no vehicle and a working voltage interval when the sensing unit has the vehicle. Compared with the prior art, the invention has the advantages of economy, reliability and the like.
Description
Technical Field
The invention relates to a method, a device and an isolation method for judging whether an axle counting magnetic head is interfered by traction current.
Background
Along with the gradual deepening of the electrification process of the Chinese rail transit, the mutual influence among the electric devices is increased, the coupling degree is increased, and the method is particularly prominent to a signal system. The axle counting equipment is used as important equipment for train positioning and direction judgment, is smooth in driving command and operation, and is of great importance to proper use and maintenance of the axle counting equipment.
At present, the phenomenon that axle equipment is interfered by traction current frequently occurs, but no mature evasion means exist. When a train runs, traction current needs to return to a substation through a grounding wire, a line and a steel rail, the arrangement of the grounding wire and the line influences the magnitude of the traction current in the steel rail, and the influence of harmonic waves in the steel rail on a track circuit and axle counting equipment or an axle counting magnetic head also exists, particularly when the train runs into a phase separation area. The axle counting magnetic head is interfered by the traction current to trigger a wrong 'occupancy' signal, the operation efficiency is greatly influenced, and discussion and improvement are urgently needed for the judging and isolating method of the axle counting magnetic head interfered by the traction current.
Based on the practical fault case and the solution, the invention provides a method for judging and isolating the interference of the axle counting magnetic head by the traction current, so as to serve the maintenance and management of the axle counting equipment and provide reference for related research and technical realization.
Disclosure of Invention
The present invention aims to overcome the defects of the prior art and provide a method, a device and an isolation method for judging the traction current interference of the axle counting magnetic head, which can economically and accurately judge the current interference.
The purpose of the invention can be realized by the following technical scheme:
a method for judging whether an axle counting magnetic head is interfered by a traction current comprises the following steps:
step S1: acquiring a maximum voltage value of an induction unit of axle counting equipment when a train enters a phase splitting area, and acquiring a first maximum voltage;
step S2: acquiring a maximum voltage value of the sensing unit when the train does not reach the axle counting device after entering the phase separation area, and acquiring a second maximum voltage;
step S3: acquiring the maximum voltage value of the sensing unit when the train passes through the axle counting device, and acquiring a third maximum voltage of the train;
step S4: and judging whether interference exists or not and the interference degree based on the first maximum voltage, the second maximum voltage and the third maximum voltage by combining a working voltage interval when the sensing unit of the axle counting device has no vehicle and a working voltage interval when the sensing unit has the vehicle.
The step S4 specifically includes:
if the first maximum voltage is greater than the second maximum voltage and the first maximum voltage is in the working voltage interval when no vehicle exists but not in the working voltage zone when a vehicle exists, outputting a signal that slight interference exists;
if the first maximum voltage is greater than the second maximum voltage and the first maximum voltage is in a working voltage interval when a vehicle is in the working voltage interval, outputting a signal that serious interference exists;
if the first maximum voltage is greater than the third maximum voltage and the first maximum voltage is in the operating voltage interval when a vehicle is present, the output signal is a severe disturbance.
The axle counting device comprises two sensing units,
the step S1 specifically includes: acquiring maximum voltage values of two induction units of axle counting equipment when a train enters a phase splitting area, and taking the larger of the maximum voltage values as a first maximum voltage;
the step S2 specifically includes: acquiring maximum voltage values of two induction units of the axle counting equipment before the train enters a phase separation area, and taking the greater of the maximum voltage values as a second maximum voltage;
the step S1 specifically includes: the maximum voltage values of two induction units of the axle counting device when the train passes through the axle counting device are collected, and the maximum voltage value is taken as the third maximum voltage.
A device for judging whether an axle counting magnetic head is interfered by traction current comprises a memory, a processor and a program which is stored in the memory and executed by the processor, wherein the processor executes the program to realize the following steps:
step S1: acquiring a maximum voltage value of an induction unit of axle counting equipment when a train enters a phase splitting area, and acquiring a first maximum voltage;
step S2: acquiring a maximum voltage value of the sensing unit when the train does not reach the axle counting device after entering the phase separation area, and acquiring a second maximum voltage;
step S3: acquiring the maximum voltage value of the sensing unit when the train passes through the axle counting device, and acquiring a third maximum voltage of the train;
step S4: and judging whether interference exists or not and the interference degree based on the first maximum voltage, the second maximum voltage and the third maximum voltage by combining a working voltage interval when the sensing unit of the axle counting device has no vehicle and a working voltage interval when the sensing unit has the vehicle.
The step S4 specifically includes:
if the first maximum voltage is greater than the second maximum voltage and the first maximum voltage is in the working voltage interval when no vehicle exists but not in the working voltage zone when a vehicle exists, outputting a signal that slight interference exists;
if the first maximum voltage is greater than the second maximum voltage and the first maximum voltage is in a working voltage interval when a vehicle is in the working voltage interval, outputting a signal that serious interference exists;
if the first maximum voltage is greater than the third maximum voltage and the first maximum voltage is in the operating voltage interval when a vehicle is present, the output signal is a severe disturbance.
The axle counting device comprises two sensing units,
the step S1 specifically includes: acquiring maximum voltage values of two induction units of axle counting equipment when a train enters a phase splitting area, and taking the larger of the maximum voltage values as a first maximum voltage;
the step S2 specifically includes: acquiring maximum voltage values of two induction units of the axle counting equipment before the train enters a phase separation area, and taking the greater of the maximum voltage values as a second maximum voltage;
the step S1 specifically includes: the maximum voltage values of two induction units of the axle counting device when the train passes through the axle counting device are collected, and the maximum voltage value is taken as the third maximum voltage.
A fault isolation method based on the method for judging whether the axle counting magnetic head is interfered by the traction current comprises the following steps:
step A1: when the output signal is serious interference, judging whether the axle counting equipment is positioned at the joint of the steel rail, if so, executing the step A2, otherwise, executing the step A3;
step A2: arranging an insulating joint between the two steel rails, additionally arranging a shielded cable and arranging a cable shielding layer for grounding;
step A3: and selecting a phase separation region in the direction opposite to the running direction of the train as a near phase separation region direction, and arranging a grounding wire on the near phase separation region side of the axle counting equipment, wherein the grounding wire can also be further additionally provided with an on-line cable.
The distance between the shielding cable and the axle counting sensing unit is larger than a first set distance.
The distance between the grounding wire and the axle counting sensing unit is larger than a first set distance.
The method further comprises the following steps:
step A4: acquiring a maximum voltage value of an induction unit of axle counting equipment when a train enters a phase splitting area, and acquiring a first maximum voltage;
step A5: acquiring a maximum voltage value of the sensing unit when the train does not reach the axle counting device after entering the phase separation area, and acquiring a second maximum voltage;
step A6: and judging whether the first maximum voltage is smaller than the second maximum voltage or not, and if so, finishing the isolation.
Compared with the prior art, the invention has the following beneficial effects:
1) aiming at the running requirements of the train, the interference degree of the axle equipment by the traction current is scientifically judged.
2) The isolation scheme is simple and economical, does not influence the normal work of a track circuit, and can be scientifically used for the maintenance work of the axle counting equipment.
Drawings
FIG. 1 is a logic diagram for judging the interference degree of a magnetic head with a traction current;
FIG. 2 is a method of isolation of traction current disturbances when the axle counting head is positioned at a rail joint;
FIG. 3 is a method 1 for isolation of traction current disturbances when the axle counting head is positioned in the middle of a rail;
FIG. 4 is a method 2 of traction current interference isolation with a tape head centered between rails;
wherein: 1. rail, 2, receiving magnetic head, 3, transmitting magnetic head, 4, insulating joint, 5, shielding cable, 6 and cable.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
In the application, the method for judging the influence degree of the axle counting magnetic head by the traction current interference is used for judging the adverse degree of the influence of the traction current on the axle counting equipment when a train passes through a phase separation zone and analyzing whether the interference isolation needs to be executed or improved. The method judges by comparing the voltage of the magnetic head (induction unit) under different scenes. And the degree of interference is classified into two categories, namely mild interference and severe interference. Further observation is needed when the interference is discriminated as a minor interference. When the interference is a serious interference, the isolation operation needs to be immediately performed.
The traction current interference isolation method is used for isolating the adverse effect of the traction current in the steel rail 1 on the axle counting magnetic head when the traction current of a train passes through a neutral section area, a braking working condition and the like is greatly fluctuated. According to the method, according to the actual position of the axle counting equipment, traction current interference isolation is implemented by adding an insulating joint 4, a shielding cable 5, a grounding wire, an on-line cable 6 and the like.
Specifically, the direction opposite to the running direction of the train is taken as the direction of the near phase separation region. Meanwhile, when the train enters the phase separation zone or goes down a slope, the traction current has an influence on the axle counting equipment, and the outline is given by taking the train passing the phase separation zone as an example (other scenarios are consistent):
a method for judging whether an axle counting magnetic head is interfered by traction current is realized by a computer system, as shown in figure 1, and comprises the following steps:
step S1: acquiring a maximum voltage value of an induction unit of axle counting equipment when a train enters a phase splitting area, and acquiring a first maximum voltage U1;
step S2: acquiring the maximum voltage value of the induction unit when the train does not reach the axle counting device after entering the phase separation area, and acquiring a second maximum voltage U2;
step S3: collecting the maximum voltage value of the sensing unit when the train passes through the axle counting device, and obtaining a third maximum voltage U3;
step S4: and judging whether interference exists or not and the interference degree based on the first maximum voltage, the second maximum voltage and the third maximum voltage by combining a working voltage interval when the sensing unit of the axle counting device has no vehicle and a working voltage interval when the sensing unit has the vehicle.
Step S4 specifically includes:
if the first maximum voltage is greater than the second maximum voltage and the first maximum voltage is in the working voltage interval when no vehicle exists but not in the working voltage zone when a vehicle exists, outputting a signal that slight interference exists;
if the first maximum voltage is greater than the second maximum voltage and the first maximum voltage is in a working voltage interval when a vehicle is in the working voltage interval, outputting a signal that serious interference exists;
if the first maximum voltage is greater than the third maximum voltage and the first maximum voltage is in the operating voltage interval when a vehicle is present, the output signal is a severe disturbance.
Preferably, the axle counting device comprises two sensing units, respectively a receiving head 2 and a transmitting head 3, when:
step S1 specifically includes: acquiring maximum voltage values of two induction units of axle counting equipment when a train enters a phase splitting area, and taking the larger of the maximum voltage values as a first maximum voltage;
step S2 specifically includes: acquiring maximum voltage values of two induction units of the axle counting equipment before the train enters a phase separation area, and taking the greater of the maximum voltage values as a second maximum voltage;
step S1 specifically includes: the maximum voltage values of two induction units of the axle counting device when the train passes through the axle counting device are collected, and the maximum voltage value is taken as the third maximum voltage.
In addition, the application also provides a fault isolation method based on the judging method for the axle counting magnetic head to be interfered by the traction current, which comprises the following steps:
step A1: when the output signal is serious interference, judging whether the axle counting equipment is positioned at the joint of the steel rail 1, if so, executing the step A2, otherwise, executing the step A3;
step A2: as shown in fig. 2, an insulating joint 4 is arranged between two steel rails 1, a shielded cable 5 is additionally arranged, and a cable 5 shielding layer is arranged for grounding. In order to ensure the isolation effect, a certain distance should be kept between the shielding cable 5 and the axle counting sensing unit, and the distance needs to be calculated according to actual conditions. If the insulation effect of the ordinary cable is passed, the ordinary cable can be used if the U1 is not larger than the U2.
Step A3: at this time, the axle counting device is located in the middle of the single steel rail 1, as shown in fig. 3 and 4, a phase separation region in the direction opposite to the running direction of the train is selected as a near phase separation region direction, and a grounding wire is arranged on the near phase separation region side of the axle counting device. In order to ensure the isolation effect, an upper line suction cable 6 can be further additionally arranged. The distance between the grounding wire and the sucking wire cable and the axle counting sensing unit should be kept at a certain distance.
Step A4: acquiring a maximum voltage value of an induction unit of axle counting equipment when a train enters a phase splitting area, and acquiring a first maximum voltage;
step A5: acquiring a maximum voltage value of the sensing unit when the train does not reach the axle counting device after entering the phase separation area, and acquiring a second maximum voltage;
step A6: and judging whether the first maximum voltage is smaller than the second maximum voltage or not, and if so, finishing the isolation.
In summary, the present application provides an interference degree determination method and an interference isolation method for the problem that the axle counting device is interfered by the traction current. In the implementation process, the possibly interfered axle counting equipment is preferentially detected according to information such as the position of a phase separation area, the position of a track ascending and descending and the like, so that the workload is reduced.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A method for judging whether an axle counting magnetic head is interfered by traction current is characterized by comprising the following steps:
step S1: acquiring a maximum voltage value of an induction unit of axle counting equipment when a train enters a phase splitting area, and acquiring a first maximum voltage;
step S2: acquiring a maximum voltage value of the sensing unit when the train does not reach the axle counting device after entering the phase separation area, and acquiring a second maximum voltage;
step S3: acquiring the maximum voltage value of the sensing unit when the train passes through the axle counting device, and acquiring a third maximum voltage of the train;
step S4: and judging whether interference exists or not and the interference degree based on the first maximum voltage, the second maximum voltage and the third maximum voltage by combining a working voltage interval when the sensing unit of the axle counting device has no vehicle and a working voltage interval when the sensing unit has the vehicle.
2. The method for determining whether the axle counting head is interfered by the traction current according to claim 1, wherein the step S4 specifically comprises:
if the first maximum voltage is greater than the second maximum voltage and the first maximum voltage is in the working voltage interval when no vehicle exists but not in the working voltage zone when a vehicle exists, outputting a signal that slight interference exists;
if the first maximum voltage is greater than the second maximum voltage and the first maximum voltage is in a working voltage interval when a vehicle is in the working voltage interval, outputting a signal that serious interference exists;
if the first maximum voltage is greater than the third maximum voltage and the first maximum voltage is in the operating voltage interval when a vehicle is present, the output signal is a severe disturbance.
3. The method for determining whether the axle counting magnetic head is interfered by the traction current according to claim 1, wherein the axle counting device comprises two sensing units,
the step S1 specifically includes: acquiring maximum voltage values of two induction units of axle counting equipment when a train enters a phase splitting area, and taking the larger of the maximum voltage values as a first maximum voltage;
the step S2 specifically includes: acquiring maximum voltage values of two induction units of the axle counting equipment before the train enters a phase separation area, and taking the greater of the maximum voltage values as a second maximum voltage;
the step S1 specifically includes: the maximum voltage values of two induction units of the axle counting device when the train passes through the axle counting device are collected, and the maximum voltage value is taken as the third maximum voltage.
4. A device for judging whether an axle counting magnetic head is interfered by traction current is characterized by comprising a memory, a processor and a program stored in the memory and executed by the processor, wherein the processor executes the program to realize the following steps:
step S1: acquiring a maximum voltage value of an induction unit of axle counting equipment when a train enters a phase splitting area, and acquiring a first maximum voltage;
step S2: acquiring a maximum voltage value of the sensing unit when the train does not reach the axle counting device after entering the phase separation area, and acquiring a second maximum voltage;
step S3: acquiring the maximum voltage value of the sensing unit when the train passes through the axle counting device, and acquiring a third maximum voltage of the train;
step S4: and judging whether interference exists or not and the interference degree based on the first maximum voltage, the second maximum voltage and the third maximum voltage by combining a working voltage interval when the sensing unit of the axle counting device has no vehicle and a working voltage interval when the sensing unit has the vehicle.
5. The apparatus for determining whether the axle counting head is disturbed by the traction current according to claim 3, wherein the step S4 specifically comprises:
if the first maximum voltage is greater than the second maximum voltage and the first maximum voltage is in the working voltage interval when no vehicle exists but not in the working voltage zone when a vehicle exists, outputting a signal that slight interference exists;
if the first maximum voltage is greater than the second maximum voltage and the first maximum voltage is in a working voltage interval when a vehicle is in the working voltage interval, outputting a signal that serious interference exists;
if the first maximum voltage is greater than the third maximum voltage and the first maximum voltage is in the operating voltage interval when a vehicle is present, the output signal is a severe disturbance.
6. The device for determining whether an axle counting magnetic head is disturbed by traction current according to claim 4, wherein the axle counting device comprises two sensing units,
the step S1 specifically includes: acquiring maximum voltage values of two induction units of axle counting equipment when a train enters a phase splitting area, and taking the larger of the maximum voltage values as a first maximum voltage;
the step S2 specifically includes: acquiring maximum voltage values of two induction units of the axle counting equipment before the train enters a phase separation area, and taking the greater of the maximum voltage values as a second maximum voltage;
the step S1 specifically includes: the maximum voltage values of two induction units of the axle counting device when the train passes through the axle counting device are collected, and the maximum voltage value is taken as the third maximum voltage.
7. A fault isolation method based on the method for determining whether an axle counting head is disturbed by a traction current according to claim 2, comprising:
step A1: when the output signal is serious interference, judging whether the axle counting equipment is positioned at the joint of the steel rail, if so, executing the step A2, otherwise, executing the step A3;
step A2: arranging an insulating joint between the two steel rails, additionally arranging a shielded cable and arranging a cable shielding layer for grounding;
step A3: and selecting a phase separation region in the direction opposite to the running direction of the train as a near phase separation region direction, and arranging a grounding wire on the near phase separation region side of the axle counting equipment.
8. The fault isolation method of claim 7, wherein the distance between the shielded cable and the axle counting sensing unit is greater than a first set distance.
9. The fault isolation method of claim 7, wherein a distance between the ground line and the axle counting sensing unit is greater than a first set distance.
10. The fault isolation method of claim 7, further comprising:
step A4: acquiring a maximum voltage value of an induction unit of axle counting equipment when a train enters a phase splitting area, and acquiring a first maximum voltage;
step A5: acquiring a maximum voltage value of the sensing unit when the train does not reach the axle counting device after entering the phase separation area, and acquiring a second maximum voltage;
step A6: and judging whether the first maximum voltage is smaller than the second maximum voltage or not, and if so, finishing the isolation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934485.4A CN110588714B (en) | 2019-09-29 | 2019-09-29 | Method and device for judging interference of axle counting magnetic head by traction current and isolation method |
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| CN201910934485.4A CN110588714B (en) | 2019-09-29 | 2019-09-29 | Method and device for judging interference of axle counting magnetic head by traction current and isolation method |
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| CN110588714B CN110588714B (en) | 2020-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117246375A (en) * | 2023-10-07 | 2023-12-19 | 温州市铁路与轨道交通投资集团有限公司 | Electromagnetic interference filtering method and device for axle counting equipment and axle counting equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3135232A1 (en) * | 1981-09-05 | 1983-04-07 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Threshold circuit without hysteresis |
| CN1086485A (en) * | 1993-10-14 | 1994-05-11 | 中国铁路通信信号总公司研究设计院 | Monorail locomotive signal |
| CN102358326A (en) * | 2011-06-24 | 2012-02-22 | 深圳科安达电子科技股份有限公司 | System for solving poor track circuit shunting problem |
| CN107487340A (en) * | 2017-09-19 | 2017-12-19 | 北京信合永泰科技有限公司 | Rail traction current imbalance monitoring method and system |
| CN109733438A (en) * | 2019-02-01 | 2019-05-10 | 深圳科安达电子科技股份有限公司 | Wheel detector |
| CN110001713A (en) * | 2019-04-12 | 2019-07-12 | 卡斯柯信号有限公司 | The method and device of the detection of meter shaft magnetic head health degree and early warning based on AHP |
| CN110281976A (en) * | 2019-06-17 | 2019-09-27 | 深圳科安达电子科技股份有限公司 | A kind of axle counting system |
-
2019
- 2019-09-29 CN CN201910934485.4A patent/CN110588714B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3135232A1 (en) * | 1981-09-05 | 1983-04-07 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Threshold circuit without hysteresis |
| CN1086485A (en) * | 1993-10-14 | 1994-05-11 | 中国铁路通信信号总公司研究设计院 | Monorail locomotive signal |
| CN102358326A (en) * | 2011-06-24 | 2012-02-22 | 深圳科安达电子科技股份有限公司 | System for solving poor track circuit shunting problem |
| CN107487340A (en) * | 2017-09-19 | 2017-12-19 | 北京信合永泰科技有限公司 | Rail traction current imbalance monitoring method and system |
| CN109733438A (en) * | 2019-02-01 | 2019-05-10 | 深圳科安达电子科技股份有限公司 | Wheel detector |
| CN110001713A (en) * | 2019-04-12 | 2019-07-12 | 卡斯柯信号有限公司 | The method and device of the detection of meter shaft magnetic head health degree and early warning based on AHP |
| CN110281976A (en) * | 2019-06-17 | 2019-09-27 | 深圳科安达电子科技股份有限公司 | A kind of axle counting system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117246375A (en) * | 2023-10-07 | 2023-12-19 | 温州市铁路与轨道交通投资集团有限公司 | Electromagnetic interference filtering method and device for axle counting equipment and axle counting equipment |
| CN117246375B (en) * | 2023-10-07 | 2024-04-26 | 温州市铁路与轨道交通投资集团有限公司 | Electromagnetic interference filtering method and device for axle counting equipment and axle counting equipment |
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| CN110588714B (en) | 2020-11-27 |
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