CN103381843A - Axle counting system - Google Patents
Axle counting system Download PDFInfo
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- CN103381843A CN103381843A CN2013103335144A CN201310333514A CN103381843A CN 103381843 A CN103381843 A CN 103381843A CN 2013103335144 A CN2013103335144 A CN 2013103335144A CN 201310333514 A CN201310333514 A CN 201310333514A CN 103381843 A CN103381843 A CN 103381843A
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- wheel sensor
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Abstract
An axle counting system comprises a wheel sensor and an axle counting arithmetic unit. The wheel sensor is unilaterally installed on a steel rail, the top surface of the wheel sensor is lower than that of the steel rail, the axle counting arithmetic unit receives and operates signals, judges whether a rail section is occupied and outputs the signals. A damping board is further arranged between the wheel sensor and the steel rail. The axle counting arithmetic unit is provided with an amplifying unit, an axle counting unit and an output unit, wherein the amplifying unit processes the received signals and outputs the signals to the axle counting unit and the output unit, the axle counting unit recognizes the train traveling direction, calculates the number of wheels and transmits the results to the output unit, and the output unit outputs rail information. The wheel sensor is unilaterally installed on the steel rail, and the top surface of the wheel sensor is lower than that of the steel rail, so that the wheel sensor only has effect on rims of the train wheels lower than the top surface of the steel rail, and interference cannot be generated easily. The damping plate is further arranged between the sensor and the steel rail, when the wheel sensor is loose, alarm information can be emitted to remind maintain staff to repair timely, and operation safety is improved.
Description
Technical field
The present invention discloses a kind of axle counting system that detects train wheel on rail.
Background technology
Railway transportation occupies very important position in people's daily life, occupy very large proportion in carrier.Because railway transportation belongs to track traffic, therefore also very high to the requirement of its running environment etc. because its operation scheme that adopts is more special, the particularly important is at one time, can only there be a row train to exist on same section line.at present, axle counting system is widely used in detecting train existence on rail, axle counting system adopts magnetic head sensor induction train wheel signal, sensor is divided into transmitting portion and receiving portion, be arranged on respectively the both sides of rail, when being checked through field signal through sensor magnetic field when zone receiving portion, train wheel changes, then the signal that detects is arrived the meter shaft main frame by cable transmission, in main frame, software determines the current train process that whether has by signal waveform, the problem that in existing axle counting system, detecting device exists is: hold the metal object such as spade as the construction of railways personnel when streaking the wheel sensor field region, whether easily sensor is differentiated has train to advance to cause interference, in addition, when wheel sensor gets loose from the rail of installing, axis-counting device cannot oneself check out this fault, can not indicate the maintainer in time to solve fault, can cause serious train safe accident.
In prior art, the method that easily is interfered for the solution wheel sensor is just on rail, a strain sensor to be installed in addition, technical scheme as disclosed in ZL200820109965.4, the device that it has additionally increased sensor and has processed this sensor signal, equipment is complicated, and cost is high.
Summary of the invention
The invention provides the strong axle counting system of a kind of antijamming capability for the above-mentioned axle counting system of the prior art of mentioning, rear wheel sensor end face is installed lower than the end face of rail, wheel sensor only produces induction effect to the train wheel wheel rim lower than rail surface, when metal object is streaked on rail, wheel sensor induction less than, therefore be not easy to be interfered and cost low.。
The technical scheme of axle counting system of the present invention is: a kind of axle counting system, axle counting system comprises for detection of the wheel sensor of train wheel signal on rail and meter shaft arithmetic and logic unit, described wheel sensor is one-sided to be arranged on rail, the wheel sensor end face is lower than rail surface, wheel sensor detects and sends the train wheel signal to the meter shaft arithmetic and logic unit, the meter shaft arithmetic and logic unit carries out computing and judges whether track section takies signal, and signal is exported.
The further technical scheme of axle counting system of the present invention is: described meter shaft arithmetic and logic unit comprises amplifying unit, meter shaft unit, output unit and power subsystem unit, amplifying unit receives the train wheel signal that wheel sensor sends, and export to respectively meter shaft unit and output unit after processing to the received signal, meter shaft unit identification current of traffic and calculating wheel quantity also judge taking or the free time of section, and operation result is exported to output unit, the output unit output track takies or idle information.
Also be provided with a damping panel between described wheel sensor and rail.
Described damping panel is divided into the upper and lower, and top is higher than the wheel sensor end face and lower than rail surface; Described top and bottom shape have a certain degree, and be corresponding with the rail section size.
Described meter shaft arithmetic and logic unit also comprises a return-to-zero unit, and the return-to-zero unit produces the return-to-zero signal and to meter shaft unit and output unit, the meter shaft arithmetic and logic unit carried out zero clearing, makes meter shaft arithmetic and logic unit output idle condition.
Be provided with an outside return-to-zero interface that is used for receiving outward sign on described return-to-zero unit.
Described meter shaft unit has two parallel arithmetical circuits, amplifying unit outputs signal to respectively two arithmetical circuits, when two arithmetical circuit result of calculations are identical, and output meter shaft result, when two arithmetical circuit result of calculations not simultaneously, output axle counting system fault.
Described amplifying unit, meter shaft unit, power subsystem unit, return-to-zero unit and output unit are made into independently integrated circuit board by function.
Described axle counting system comprises that also connects a backboard, described amplifying unit, meter shaft unit, output unit, power subsystem unit, return-to-zero unit be connected backboard and peg graft respectively.
The invention has the beneficial effects as follows: due to one-sided being arranged on rail of wheel sensor, and rear wheel sensor end face is installed lower than the end face of rail, wheel sensor only produces induction effect to the train wheel wheel rim lower than rail surface, when metal object is streaked on rail, wheel sensor induction less than, therefore be not easy to be interfered and cost low.In addition, also be provided with a damping panel between sensor and rail, the magnetic field of wheel sensor is defined in particular range, when wheel sensor loosening or when breaking away from from rail, magnetic field can change, and this variation is arrived breakdown signal of rear generation by the wheel sensing detection, when the meter shaft arithmetic and logic unit is received sort signal, send warning information, allow service personnel in time repair.In addition, each unit is made into independent integrated circuit board by function, when certain integrated circuit board fault, can carries out hot-swappable repairing, can not have influence on the use of other section equipment, improved railway operation efficient and shortened the break down maintenance time.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is system principle block scheme of the present invention.
Fig. 2 is installation of sensors schematic diagram of the present invention, and in diagram, 1 indicates rail, and 2 indicate damping panel, and 3 is wheel sensor.
Fig. 3 is the damping panel schematic diagram.
Fig. 4 is that prior art solution interference separately adds the installation of sensors schematic diagram.
The specific embodiment
The present embodiment is the preferred embodiment for the present invention, and other all its principles are identical with the present embodiment or approximate with basic structure, all within protection domain of the present invention.
Axle counting system is used for checking on track whether have train, it is specifically take wheel sensor as train spacing point, rail is divided into sectional zone, the orbital region that forms between two wheel sensores is called a section, axle counting system to enter in section wheel quantity with leave that in section, wheel quantity compares, when entering wheel quantity when equaling to leave wheel quantity, judge that this section does not have train, be that section is idle, when entering wheel quantity and leaving wheel quantity when unequal, judging has train to exist in this section, namely this section takies.
The axle counting system of the present embodiment includes wheel sensor and meter shaft arithmetic and logic unit.As shown in Figure 2, during installation, punch on the web of the rail of rail 1, passing rail 1 with screw is fixed on wheel sensor 3 on a siding track waist of rail 1, the end face of wheel sensor 3 is lower than the end face of rail 1, the magnetic field height of adjusting wheel sensor distributes, wheel sensor 3 can not be sensed the metal object existence when metal object is streaked on rail 1, when metal object during lower than rail 1 end face and in wheel sensor magnetic field induction scope, wheel sensor can be sensed metal object, and wheel sensor sends to the meter shaft arithmetic and logic unit with information after the metal object signal being detected.When train is walked on rail, the tread of wheel contacts with rail surface, and the wheel rim of wheel is lower than rail surface, on the rail one siding track waist that wheel sensor is arranged on the wheel rim side shown in Figure 2, can sense wheel rim by actv., and end face or the metal object on it are not responded to, axle counting system actv. of the present invention improves jamproof ability.
As shown in Figure 2, the axle counting system of the present embodiment also also is equipped with a damping panel 2 between rail 1 and wheel sensor 3, damping panel 2 is magnetic material, it can affect the distribution in wheel sensor magnetic field, when the distance of damping panel 2 and wheel sensor 2 changes, the magnetic field of wheel sensor changes, thereby judges that wheel sensor 3 becomes flexible or comes off from rail 1, makes the axle counting system of the present embodiment have the function that the inspection vehicle wheel sensor is loosening or come off.
In order to reduce the impact of electric current on wheel sensor on rail, the damping panel 2 of the invention of the present embodiment, as shown in Figure 3, damping panel 2 is divided into top 21 and bottom 22, and top 21 is higher than the wheel sensor end face and lower than rail surface.When on rail, electric current being arranged, damping panel 21 can stop the magnetic field of electric current generation on the impact of sensor by actv..Further, the top of damping panel 2 21 has a certain degree with bottom 22 shapes, angular dimension with the rail section size to corresponding, so that the shielding rail current of maximum range is on the impact of sensor.
Meter shaft arithmetic and logic unit in the present embodiment axle counting system is arranged on indoor, and the wheel sensor signal of receiving is processed with computing and judged whether track takies, and result is exported to interlock system as judging one of train travel condition.As shown in Figure 1, include amplifying unit, meter shaft unit, output unit and power subsystem unit in described meter shaft arithmetic and logic unit, described amplifying unit sensor-lodging is exported to respectively meter shaft unit and output unit after processing to the received signal; Include two independently arithmetical circuits arranged side by side in described meter shaft unit, they accept the signal that amplifying unit provides simultaneously, but independently carry out respectively computing, then two operation results are compared, when two operation results are not identical, produce breakdown signal, when operation result is identical, the output operation result, the reliability of raising meter shaft arithmetic element.Output unit receives the signal of amplifying unit, and when certain section be idle, when wheel sensor was sensed wheel signal, output unit need not be waited for the operation result of meter shaft unit, output track section occupied information immediately, the safety of raising train travel; Output unit receives the signal of meter shaft unit, and the meter shaft unit sends the section idle signal by computing and when judging that train leaves this track section to output unit, and output unit is the idle information of output track section immediately.Power subsystem unit is to each unit power supply such as amplifying unit, meter shaft unit and output unit.
The meter shaft arithmetic and logic unit of the present embodiment axle counting system also is provided with the return-to-zero unit, be used for axle counting system is carried out the return-to-zero operation, when device power or break down maintenance good after, can allow axle counting system get back to idle condition, in the present embodiment, return-to-zero unit output return-to-zero signal is to meter shaft unit and output unit, and power subsystem unit is given return-to-zero unit power supply simultaneously.In order to facilitate equipment in operation manipulate and safety control, in the present embodiment, also be provided with outside return-to-zero operation-interface on the return-to-zero unit, adopt outer signal to control return-to-zero unit output return-to-zero signal.
The present embodiment axle counting system is made into independently integrated circuit board with above-mentioned amplifying unit, meter shaft unit, output unit, return-to-zero unit by function, a backboard is set in addition again is used for pegging graft various integrated circuit boards.The check implement of a section is configured to respectively one of amplification board, meter shaft plate, output board, return-to-zero plate, quantity according to section, also directly be inserted on corresponding tergal position by the corresponding increase integrated circuit board of this standard configuration quantity and get final product, so, the axle counting system of the present embodiment can configure very flexibly according to the quantity of Site Detection section.In addition, various integrated circuit boards are made into hot-swappable, if certain the integrated circuit board fault in section, direct charged for replacement, in not impact system, other section equipment normally uses, and can improve railway operation efficient.
Claims (9)
1. axle counting system, it is characterized in that: described axle counting system comprises for detection of the wheel sensor of train wheel signal on rail and meter shaft arithmetic and logic unit, described wheel sensor is one-sided to be arranged on rail, the wheel sensor end face is lower than rail surface, wheel sensor detects and sends the train wheel signal to the meter shaft arithmetic and logic unit, the meter shaft arithmetic and logic unit carries out computing and judges whether track section takies signal, and signal is exported.
2. axle counting system according to claim 1, it is characterized in that: described meter shaft arithmetic and logic unit comprises amplifying unit, meter shaft unit, output unit and power subsystem unit, amplifying unit receives the train wheel signal that wheel sensor sends, and export to respectively meter shaft unit and output unit after processing to the received signal, meter shaft unit identification current of traffic and calculating wheel quantity also judge taking or the free time of section, and operation result is exported to output unit, the output unit output track takies or idle information.
3. axle counting system according to claim 1 and 2, is characterized in that: also be provided with a damping panel between described wheel sensor and rail.
4. axle counting system according to claim 3, it is characterized in that: described damping panel is divided into the upper and lower, and top is higher than the wheel sensor end face and lower than rail surface; Described top and bottom shape have a certain degree, with the rail section size to corresponding.
5. axle counting system according to claim 2, it is characterized in that: described meter shaft arithmetic and logic unit also comprises a return-to-zero unit, the return-to-zero unit produces the return-to-zero signal and to meter shaft unit and output unit, the meter shaft arithmetic and logic unit is carried out zero clearing, makes meter shaft arithmetic and logic unit output idle condition.
6. axle counting system according to claim 4 is characterized in that: described return-to-zero is provided with an outside return-to-zero interface that is used for receiving outward sign on the unit.
7. the described axle counting system of any one according to claim 2 to 6, it is characterized in that: described meter shaft unit has two parallel arithmetical circuits, amplifying unit outputs signal to respectively two arithmetical circuits, when two arithmetical circuit result of calculations are identical, output meter shaft result, when two arithmetical circuit result of calculations not simultaneously, output axle counting system fault.
8. the described axle counting system of any one according to claim 2 to 6 is characterized in that: described amplifying unit, meter shaft unit, power subsystem unit, return-to-zero unit and output unit are made into independently integrated circuit board by function.
9. axle counting system according to claim 8 is characterized in that: described axle counting system comprises that also connects a backboard, described amplifying unit, meter shaft unit, output unit, power subsystem unit, return-to-zero unit be connected backboard and peg graft respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103335144A CN103381843A (en) | 2013-08-02 | 2013-08-02 | Axle counting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103335144A CN103381843A (en) | 2013-08-02 | 2013-08-02 | Axle counting system |
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| CN103381843A true CN103381843A (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103335144A Pending CN103381843A (en) | 2013-08-02 | 2013-08-02 | Axle counting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112389500A (en) * | 2020-11-30 | 2021-02-23 | 中国铁道科学研究院集团有限公司 | Track axle counting device, system and data processing method |
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| EP1491864A2 (en) * | 2003-06-26 | 2004-12-29 | Siemens Aktiengesellschaft | Method and device for testing the functioning of an inductive sensor |
| CN201012690Y (en) * | 2007-02-06 | 2008-01-30 | 河南辉煌科技股份有限公司 | Rail wheel transducer |
| CN102372011A (en) * | 2011-07-26 | 2012-03-14 | 哈尔滨铁路局科学技术研究所 | Station axle counting system and control host thereof |
| CN203472887U (en) * | 2013-08-02 | 2014-03-12 | 深圳科安达电子科技股份有限公司 | Axle counting system |
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2013
- 2013-08-02 CN CN2013103335144A patent/CN103381843A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1491864A2 (en) * | 2003-06-26 | 2004-12-29 | Siemens Aktiengesellschaft | Method and device for testing the functioning of an inductive sensor |
| CN201012690Y (en) * | 2007-02-06 | 2008-01-30 | 河南辉煌科技股份有限公司 | Rail wheel transducer |
| CN102372011A (en) * | 2011-07-26 | 2012-03-14 | 哈尔滨铁路局科学技术研究所 | Station axle counting system and control host thereof |
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Non-Patent Citations (3)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112389500A (en) * | 2020-11-30 | 2021-02-23 | 中国铁道科学研究院集团有限公司 | Track axle counting device, system and data processing method |
| CN112389500B (en) * | 2020-11-30 | 2022-10-25 | 中国铁道科学研究院集团有限公司 | Track axle counting device, system and data processing method |
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Application publication date: 20131106 |