CN101311681A - Track traffic axle count sensor - Google Patents
Track traffic axle count sensor Download PDFInfo
- Publication number
- CN101311681A CN101311681A CNA2007101186120A CN200710118612A CN101311681A CN 101311681 A CN101311681 A CN 101311681A CN A2007101186120 A CNA2007101186120 A CN A2007101186120A CN 200710118612 A CN200710118612 A CN 200710118612A CN 101311681 A CN101311681 A CN 101311681A
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- sensor
- magnetic heads
- track traffic
- container
- axle count
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to a monitoring device of track traffic, particularly being used for monitoring the axle numbers and running directions of trains. The invention adopts a track traffic axle counting sensor; wherein, an electromagnetic oscillation circuit is arranged in a sensor which is connected with a train running monitoring system through a data line; two sensors with the same higher oscillation frequency are packaged in the same container; the distance between two magnetic heads in the container ranges from 78 to 135mm. The invention packages the two magnetic heads which are decay type sensors with the same higher oscillation frequency in the same container; the container provided with the two magnetic heads are arranged at one side of the track; the invention can be used for detecting the running directions of the trains by adopting a pre-and-post dislocation packaging mode; the packaging of the two magnetic heads with the same frequency leads the construction and installation to be simpler, reduces the manufacturing cost and strengthens the anti-interference performance of the monitoring device.
Description
Technical field
The present invention relates to track traffic operation monitoring device, in particular for monitoring the number of axle that train passes through and the direction of train driving.
Background technology
At present, existing track traffic axle count sensor, two pairs of transmissions adopting are collectively referred to as sensor with the reception magnetic head, two emission sensor are installed in a side of track, two receiving sensors are installed in the opposite side of track, when not having train to pass through track, two pairs of sensors are launched electromagnetic signal and receiving electromagnetic signals normally, when passing through track by train, one of them emission sensor receiving end received signal that is blocked earlier is zero, another emission sensor receiving end received signal that is blocked is zero then, when the receiving sensor received signal is zero monitor show train by and by the number of axle of counters count by train, because two pairs of sequencing differences that sensor is blocked, surveillance converts thereof into the difference of current of traffic.For fear of interference, two pairs of sensors adopt different emission oscillation frequency.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, be convenient to install, good in anti-interference performance, track traffic sensor that cost is low.The present invention be made as the oscillation frequency of two sensors identical and frequency higher.
Technical scheme of the present invention for achieving the above object is to adopt a kind of track traffic axle count sensor, the electromagnetic oscillation circuit is housed in described sensor, described sensor is connected with data line with the train operation surveillance, it is characterized in that comprising in the described sensor two magnetic heads, the frequency of described two magnetic heads is identical and be encapsulated in the container.
The present invention's distance between two magnetic heads in described container is 78～135mm.
Sensor of the present invention is to become the formula sensor that declines.
The container bottom that two magnetic heads are housed of the present invention is an electro-magnetic screen layer.
The present invention is used to detect wheel rim with the inboard that the described container that sensor is housed is installed in track.Because the dislocation pattern is encapsulated in the travel direction that can be used to detect train in the container before and after two magnetic heads.
The technique effect that the present invention produced is, two higher and identical magnetic heads of frequency are packaged together, and construction is all greatly simple with installation, has reduced manufacturing cost, and its anti-interference has also been strengthened greatly.Because two magnetic heads are encapsulated in a container, spacing distance is little, and the interference meeting is worked simultaneously to two sensors, can handle by common-mode signal when the control end processing of circuit, just can dispose this common-mode signal than being easier to.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure: 1, magnetic head; 2, magnetic head; 3, container.
Embodiment
Following case study on implementation is used to illustrate the present invention, but is not used for limiting the scope of the invention.
The present invention adopts a kind of track traffic axle count sensor as shown in Figure 1, the electromagnetic oscillation circuit is housed in described sensor, described sensor is connected with data line with the train operation surveillance, and two magnetic heads are encapsulated in the container 3, and two head frequences are higher and identical.If adopt the magnetic head of different frequency, to disturb and only disturb a magnetic head probably, another one is not disturbed or disturb and act on two magnetic heads respectively when different, will produce wrong meter axle so.
The present invention's distance between two magnetic heads in described container is 78～135mm.
Sensor of the present invention is to become the formula sensor that declines.
The present invention is encapsulated in 3 li in a container with the magnetic head that two higher and identical changes of oscillation frequency decline, because the electric parameter of these two magnetic heads is all identical, so easy to process.If too near, can produce the phase mutual interference between them the distance that two magnetic heads are installed.According to the requirement of track traffic axle count sensor meter axle, the spacing of two magnetic heads can not be too big, if too conference produces the negative results of losing axle.
Because two magnetic heads are encapsulated in the container 3, spacing distance is little, and the interference meeting is worked simultaneously to two magnetic heads, can be when processing of circuit by common-mode signal, and described circuit ratio is easier to just can dispose this common-mode signal.If adopt the magnetic head of different frequency, disturb and only disturb a magnetic head probably, other one not disturbed or disturb and act on two magnetic heads respectively when different, will produce wrong meter axle so.
The attenuation type magnetic head that selected frequency of the present invention is higher and identical, two magnetic heads are encapsulated in the container with fill material.The optimum distance of two magnetic heads is 78mm～135mm.Two magnetic heads use as a whole, are installed in the same side of track, judge the direction of train driving according to two sequencings that change of cover sensor signals.Have no change to judge to have or not train to pass through and the number of axle by train according to the magnetic head signal.
Claims (5)
1, a kind of track traffic axle count sensor, the electromagnetic oscillation circuit is housed in described sensor, described sensor is connected with data line with the train operation surveillance, it is characterized in that comprising in the described sensor two magnetic heads, and the frequency of described two magnetic heads is identical and be encapsulated in the container.
2, track traffic axle count sensor as claimed in claim 1 is characterized in that in described container the distance between two magnetic heads is 78～135mm.
3, track traffic axle count sensor as claimed in claim 2 is characterized in that described axle count sensor is to become the formula sensor that declines.
4, track traffic axle count sensor as claimed in claim 3 is characterized in that the described bottom that two magnetic head containers are housed is an electro-magnetic screen layer.
5,, it is characterized in that the inboard that the described container that sensor is housed is installed in track is used to detect wheel rim as the arbitrary described track traffic axle count sensor of claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101186120A CN101311681A (en) | 2007-07-10 | 2007-07-10 | Track traffic axle count sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101186120A CN101311681A (en) | 2007-07-10 | 2007-07-10 | Track traffic axle count sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101311681A true CN101311681A (en) | 2008-11-26 |
Family
ID=40100419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101186120A Pending CN101311681A (en) | 2007-07-10 | 2007-07-10 | Track traffic axle count sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101311681A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101483A (en) * | 2010-12-27 | 2011-06-22 | 深圳思量微系统有限公司 | Sensor structure for monitoring track axle |
| CN102101485A (en) * | 2010-12-27 | 2011-06-22 | 深圳思量微系统有限公司 | Wireless sensing unit for track axle counting monitoring |
| CN103693074A (en) * | 2013-12-18 | 2014-04-02 | 苏州瑞尔维电子科技有限公司 | Sensor for monitoring train operation conditions |
| CN105818838A (en) * | 2016-04-22 | 2016-08-03 | 北京永列科技有限公司 | Axle counting sensor and axle counting detection method |
| CN106029466A (en) * | 2014-01-27 | 2016-10-12 | 塔莱斯德国有限责任公司 | Redundancy switching of detection points |
| WO2019223760A1 (en) * | 2018-05-25 | 2019-11-28 | 比亚迪股份有限公司 | Movable axle counter, railway, railway transportation system, and control system |
-
2007
- 2007-07-10 CN CNA2007101186120A patent/CN101311681A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101483A (en) * | 2010-12-27 | 2011-06-22 | 深圳思量微系统有限公司 | Sensor structure for monitoring track axle |
| CN102101485A (en) * | 2010-12-27 | 2011-06-22 | 深圳思量微系统有限公司 | Wireless sensing unit for track axle counting monitoring |
| CN103693074A (en) * | 2013-12-18 | 2014-04-02 | 苏州瑞尔维电子科技有限公司 | Sensor for monitoring train operation conditions |
| CN106029466A (en) * | 2014-01-27 | 2016-10-12 | 塔莱斯德国有限责任公司 | Redundancy switching of detection points |
| CN106029466B (en) * | 2014-01-27 | 2018-09-07 | 塔莱斯德国有限责任公司 | The redundancy of test point switches |
| US10144439B2 (en) | 2014-01-27 | 2018-12-04 | Thales Deutschland Gmbh | Redundancy switching of detection points |
| CN105818838A (en) * | 2016-04-22 | 2016-08-03 | 北京永列科技有限公司 | Axle counting sensor and axle counting detection method |
| CN105818838B (en) * | 2016-04-22 | 2018-04-24 | 北京永列科技有限公司 | A kind of axle count sensor and meter shaft detection method |
| WO2019223760A1 (en) * | 2018-05-25 | 2019-11-28 | 比亚迪股份有限公司 | Movable axle counter, railway, railway transportation system, and control system |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20081126 |