CN206067779U - A kind of rail transit train position detecting device - Google Patents
A kind of rail transit train position detecting device Download PDFInfo
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- CN206067779U CN206067779U CN201620678305.2U CN201620678305U CN206067779U CN 206067779 U CN206067779 U CN 206067779U CN 201620678305 U CN201620678305 U CN 201620678305U CN 206067779 U CN206067779 U CN 206067779U
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- 238000000034 method Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 description 6
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- 238000013459 approach Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of rail transit train position detecting device, including CPU element, current processing unit, Voltage processing unit and execution display unit, CPU element includes signal transmitting module, signal receiving module and signal processing module, signal transmitting module is electrically connected with current processing unit, and current processing unit is electrically connected with signal receiving module；Signal transmitting module is electrically connected by rail with Voltage processing unit, and Voltage processing unit is electrically connected with signal receiving module；Perform display unit to electrically connect with signal receiving module, signal receiving module is electrically connected with signal processing module.In this utility model, realize and accurately judge that train occupation goes out clear information and judges the situation of rail break, can exclude is affected to cause misjudgment and do not limited by train speed per hour, low cost, it is easy to promote by other factors.
Description
Technical field
This utility model is related to technical field of rail traffic, more particularly to a kind of rail transit train position detection dress
Put.
Background technology
At present, the general train position detection equipment such as axis-counting device, inductance approach switch, crossing controller is all to use
To detect in prescribed the occupancy of train and go out clear information.
Axis-counting device detects the wheel number for passing through by judging two meter shaft magnetic heads on the same track of the same side, knows
The traffic direction of other train and to the number of axle into segment and leave the number of axle relatively go out cleer and peaceful occupied information determining train.
Although it is not affected by railway roadbed situation and leak resistance are too low, cannot effective detection track rail break situation.In addition, other
Ironware such as ferrum action on magnetic head is likely to cause misjudgment.The equipment is not suitable for the high speed of more than 350 kilometers of speed per hour
Train, and produce, installation cost it is very big.
Inductance approach switch is that in oscillating circuit, inductance value changes, and has influence on when train wheel proximity switch
Frequency of oscillation changes, and train occupation and goes out clear information so as to determine using the change output signal of detection, although its sensitivity and
Resolving power is higher, but frequency response is relatively low.In addition, it cannot also detect the situation of track rail break, if any other metal approachs, easily
In causing misjudgment, capacity of resisting disturbance and reliability are low and be not suitable for the bullet train of more than 350 kilometers of speed per hour.
Crossing controller is judged using blocking of oscillator starting of oscillation principle, thinks orbit occupancy, recognize during starting of oscillation during failure of oscillation
For track clear.This working method is easily affected by temperature, environment and other factors, when amplitude and phase condition change
When, be just unable to maintain that normal oscillation, therefore circuit just cannot normal work, and be easily disturbed, limitation is than larger.
Utility model content
This utility model provides a kind of rail transit train position detecting device, can accurately judge that train occupation goes out clear information
And judge the situation of rail break, can exclude is affected to cause misjudgment and do not limited by train speed per hour, cost by other factors
It is low, it is easy to promote the use of.
In order to achieve the above object, a kind of rail transit train position detecting device of this utility model offer, including CPU is mono-
Unit, current processing unit, Voltage processing unit and execution display unit, the CPU element are connect comprising signal transmitting module, signal
Module and signal processing module are received, the signal transmitting module is electrically connected with the current processing unit, the current processing list
It is first to electrically connect with the signal receiving module, by the current processing unit small-signal 1 sent by the signal transmitting module
Amplified, filtered a part of signal processing obtains current signal I, and the current signal I is transferred to the signal connects
Receive module；
The signal transmitting module is electrically connected by rail with the Voltage processing unit, the Voltage processing unit and institute
Signal receiving module electrical connection is stated, by the Voltage processing unit small-signal sent by the signal transmitting module is amplified,
Filtered another part signal processing obtains voltage signal U, and the voltage signal U is transferred to the signal reception mould
Block；
The execution display unit is electrically connected with the signal receiving module；
The signal receiving module is electrically connected with the signal processing module.
Further, the current processing unit includes that amplifying circuit, the first band filter and current signal process electricity
Road,
The signal transmitting module is electrically connected with the amplifying circuit, the amplifying circuit and first band filter
Electrical connection, first band filter electrically connect with the current signal process circuit, the current signal process circuit and
The signal receiving module electrical connection.
Further, the Voltage processing unit includes that the second bandwidth-limited circuit, frequency selection circuit and voltage signal are processed
Circuit, the signal transmitting module are electrically connected with second bandwidth-limited circuit, second bandwidth-limited circuit with it is described
Frequency selection circuit is electrically connected, and the frequency selection circuit is electrically connected with the voltage signal processing circuit, the voltage signal processing circuit
Electrically connect with the signal receiving module.
Further, the execution display unit includes execution circuit, impedance display module and keyboard setup module, described
Signal processing module is electrically connected with the execution circuit and the keyboard setup module respectively, with according to the signal processing module
The predetermined threshold value of calculated impedances and the keyboard setup module carries out contrast process, and the execution circuit is external
There is relay；
The impedance display module is electrically connected with the signal processing module.
Compared with prior art, this utility model at least has advantages below：
Realize and accurately judge that train occupation goes out clear information, can accurately judge that train occupation goes out clear information and judges rail break
Situation, can exclude by other factors affect cause misjudgment and do not limited by train speed per hour, low cost, it is easy to promote make
With.
Description of the drawings
Fig. 1 is the structural representation of rail transit train position detecting device provided by the utility model；
Fig. 2 is the circuit theory diagrams of rail transit train position detecting device provided by the utility model.
Specific embodiment
The utility model proposes a kind of rail transit train position detecting device, below in conjunction with the accompanying drawings, to this utility model
Specific embodiment is described in detail.
As shown in figure 1, rail transit train position detecting device provided by the utility model includes CPU element, electric current
Processing unit, Voltage processing unit and execution display unit, the CPU element include signal transmitting module, signal receiving module
And signal processing module, the signal transmitting module electrically connected with the current processing unit, the current processing unit and institute
Signal receiving module electrical connection is stated, the signal transmitting module is electrically connected by rail with the Voltage processing unit, the electricity
Pressure processing unit is electrically connected with the signal receiving module, and the execution display unit is electrically connected with the signal processing module,
The signal receiving module is electrically connected with the signal processing module.
Specifically, the small-signal 1 that sends the signal transmitting module by the current processing unit is amplified, filtering
After a part of signal processing afterwards obtains current signal I, then the current signal I is transferred to into institute by the current processing unit
State signal receiving module；The small-signal 1 that the signal transmitting module sent by the Voltage processing unit is amplified, filtering
After another part signal processing afterwards obtains voltage signal U, then the voltage signal U is transferred to by the Voltage processing unit
The signal receiving module；Current signal I and voltage signal U are sent to by signal processing module by signal receiving module.
Further, the current processing unit includes that amplifying circuit, the first band filter and current signal process electricity
Road,
The signal transmitting module is electrically connected with the amplifying circuit, the amplifying circuit and first band filter
Electrical connection, first band filter electrically connect with the current signal process circuit, the current signal process circuit and
The signal receiving module electrical connection.
The Voltage processing unit includes the second bandwidth-limited circuit, frequency selection circuit and voltage signal processing circuit, described
Signal transmitting module is electrically connected by rail with second bandwidth-limited circuit, second bandwidth-limited circuit and the choosing
Frequency circuit is electrically connected, and the frequency selection circuit electrically connect with the voltage signal processing circuit, the voltage signal processing circuit and
The signal receiving module electrical connection.
Further, performing display unit includes execution circuit, keyboard setup module and impedance display module, the signal
Processing module is electrically connected with the execution circuit and the keyboard setup module respectively, to be calculated according to the signal processing module
The impedances for obtaining and the predetermined threshold value of the keyboard setup module carry out contrast process, the execution circuit be circumscribed with after
Electrical equipment.The impedance display unit is electrically connected with the signal processing module, to show the signal by the impedance display unit
The calculated impedances numerical value of processing module.
It is specifically described with a specific embodiment below.In this specific embodiment, the signal transmitting module of CPU element to
Current processing unit sends a small-signal 1, after amplifying circuit amplifies the signal, after transferring to the first band filter to the amplification
Signal do Filtering Processing, obtain analogue signal, afterwards by current detection circuit detection after, then Jing current signals process circuit with
Reference frequency signal 1 is compared, and selects after useful signal rectification is processed and becomes direct current signal (electric current I), is input to CPU mono-
The signal receiving module of unit；Wherein, the signal transmitting module of the CPU element can also will be small-signal 1 amplified, filtered another
Part Jing rail is sent to second band filter and frequency selection circuit of Voltage processing unit, through the second band-pass filter
Signal after process is sent to the frequency selection circuit, and frequency selection circuit is mono- to the signal and CPU after the process of the second band-pass filter
The signal 2 of the reference frequency that the signal transmitting module of unit sends is contrasted, and selects the signal transmitting module transmission with CPU element
Useful signal and Jing voltage signal processing circuit rectification process become d. c. voltage signal (voltage U) after be input to CPU element
Signal receiving module.Electric current I and voltage U process that the signal processing module of CPU element is received to signal receiving module,
Impedances are calculated according to Z=U/I principles, train occupation are accurately judged using the impedances data and are gone out clear information.Tool
Body, execution circuit is according to the calculated impedances of the signal processing module and the pre- gating of the keyboard setting unit
Limit value carries out contrast process, determines train occupation situation, is sent according to train occupation situation and is instructed, after allowing relay to carry out
Continuous action.
In this utility model, by using the circuit such as digital filter and frequency selection, not only preventing machine well
The interference that the external environment conditions such as car traction power source, track signal, thunder and lightning, electrion are produced, improves interference free performance, it is ensured that stable
It is reliable, meet railway fault-safety principle principle, and can prevent from itself from interference being produced to external environment condition, will not be to other
Rail facility produces impact, installs simple, low cost, it is easy to promote the use of along the railway.
As shown in Fig. 2 involved each components and parts in the circuit theory diagrams, concrete function is as follows：
1st, band filter 1 and band filter 3 are made up of IC and peripheral component.Major function：Select
The related useful signal sent to CPU, filters other interference signals.
2nd, band filter 2 and band filter 4 are made up of inductance, electric capacity, varistor, TVS pipe etc..Main work(
Energy：(1) inductance, electric capacity constitute a narrow-band filtering circuit, on the one hand allow the signal of power amplifier output to be significantly delivered to
On rail, this wave filter is presented a low impedance state to useful frequency signal.On the other hand other frequencies on track are prevented
Interference signal pours in down a chimney the outfan into amplifier, for other interference signals are presented a high impedance status.(2) varistor and
The protection circuit that TVS pipe is constituted can be protected to circuit, prevent the phenomenons such as overvoltage, thunderbolt or locomotive tripping operation from damaging circuit.
3rd, 5 function of band filter：The useful signal of 1024Hz is selected, the 1024Hz's that CPU element is sent is useful
After signal rectification, filtering, give audion b poles and drive relay work.
4th, power amplifier function：The small-signal that CPU sends is carried out into power amplification.
5th, CPU element function：(1) meter that receiving voltage U/ sends electric current I=Z (impedances) is completed with Ohm's law
Calculate, calculate impedances, while send showing signal.
(2) arranged according to keyboard, produce the small-signal and setting threshold value for sending into power amplifier.
(3) according to setting threshold value, contrast process is carried out with impedances Z for calculating, judgement takes/go out clear state,
Complete the communication task of 485 serial ports.
6th, the major function of transformator is to isolate electronic circuit with track circuit, carries out the transmission of useful signal,
Prevent electronic circuit signal and the railway signal of track circuit from interfering.
7th, this utility model is powered using Switching Power Supply.
8th, this utility model adopts 485 serial interface communication modes.
Wherein, the modules of this utility model device can be integrated in one, it is also possible to be deployed separately.Above-mentioned module can
To merge into a module, it is also possible to be further split into multiple submodule.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module or stream in accompanying drawing
Journey is not necessarily implemented necessary to this utility model.
It will be appreciated by those skilled in the art that module in device in embodiment can be carried out point according to embodiment description
It is distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.On
The module for stating embodiment can merge into a module, it is also possible to be further split into multiple submodule.
Above-mentioned this utility model sequence number is for illustration only, does not represent the quality of embodiment.
Disclosed above is only several specific embodiments of the present utility model, but, this utility model is not limited to this,
The changes that any person skilled in the art can think of should all fall into protection domain of the present utility model.
Claims (4)
1. a kind of rail transit train position detecting device, it is characterised in that at CPU element, current processing unit, voltage
Reason unit and execution display unit, the CPU element include signal transmitting module, signal receiving module and signal processing module,
The signal transmitting module is electrically connected with the current processing unit, and the current processing unit receives mould with the signal
Block is electrically connected, and by the current processing unit small-signal 1 sent by the signal transmitting module is amplified, filtered one
Sub-signal process obtains current signal I, and the current signal I is transferred to the signal receiving module；
The signal transmitting module is electrically connected by rail with the Voltage processing unit, the Voltage processing unit and the letter
The electrical connection of number receiver module, by the Voltage processing unit small-signal 1 sent by the signal transmitting module is amplified, filtering
Another part signal processing afterwards obtains voltage signal U, and the voltage signal U is transferred to the signal receiving module；
The execution display unit is electrically connected with the signal receiving module；
The signal receiving module is electrically connected with the signal processing module.
2. rail transit train position detecting device as claimed in claim 1, it is characterised in that the current processing unit bag
Amplifying circuit, the first band filter and current signal process circuit are included,
The signal transmitting module is electrically connected with the amplifying circuit, and the amplifying circuit is electrically connected with first band filter
Connect, first band filter is electrically connected with the current signal process circuit, the current signal process circuit with it is described
Signal receiving module is electrically connected.
3. rail transit train position detecting device as claimed in claim 1, it is characterised in that the Voltage processing unit bag
Include the second bandwidth-limited circuit, frequency selection circuit and voltage signal processing circuit, the signal transmitting module and second band logical
Filter circuit is electrically connected by rail, and second bandwidth-limited circuit is electrically connected with the frequency selection circuit, the frequency selection circuit
Electrically connect with the voltage signal processing circuit, the voltage signal processing circuit is electrically connected with the signal receiving module.
4. rail transit train position detecting device as claimed in claim 1, it is characterised in that the execution display unit bag
Include execution circuit, impedance display module and keyboard setup module, the signal processing module respectively with the execution circuit and institute
The electrical connection of keyboard setup module is stated, mould is arranged according to the calculated impedances of the signal processing module and the keyboard
The predetermined threshold value of block carries out contrast process, and the execution circuit is circumscribed with relay；
The impedance display module is electrically connected with the signal processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678305.2U CN206067779U (en) | 2016-06-30 | 2016-06-30 | A kind of rail transit train position detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678305.2U CN206067779U (en) | 2016-06-30 | 2016-06-30 | A kind of rail transit train position detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206067779U true CN206067779U (en) | 2017-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620678305.2U Active CN206067779U (en) | 2016-06-30 | 2016-06-30 | A kind of rail transit train position detecting device |
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| CN (1) | CN206067779U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107380207A (en) * | 2017-07-19 | 2017-11-24 | 郑州盛源万通科技有限公司 | Anti-jump method, apparatus and track circuit |
| CN109466589A (en) * | 2018-11-01 | 2019-03-15 | 武汉民大信息科技有限公司 | It is a kind of for detecting the wireless device and its working method of Train Approaching |
| CN111391893A (en) * | 2020-02-27 | 2020-07-10 | 北京交通大学 | Subway train position detection system |
-
2016
- 2016-06-30 CN CN201620678305.2U patent/CN206067779U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107380207A (en) * | 2017-07-19 | 2017-11-24 | 郑州盛源万通科技有限公司 | Anti-jump method, apparatus and track circuit |
| CN109466589A (en) * | 2018-11-01 | 2019-03-15 | 武汉民大信息科技有限公司 | It is a kind of for detecting the wireless device and its working method of Train Approaching |
| CN109466589B (en) * | 2018-11-01 | 2019-07-23 | 武汉民大信息科技有限公司 | It is a kind of for detecting the wireless device and its working method of Train Approaching |
| CN111391893A (en) * | 2020-02-27 | 2020-07-10 | 北京交通大学 | Subway train position detection system |
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| TR01 | Transfer of patent right |
Effective date of registration: 20191224 Address after: 710000 A-01, 9th floor, Jingshang production building, No. 32, Chuanghui Road, new industrial park, Xi'an high tech Zone, Shaanxi Province Patentee after: XI'AN LANXUN ELECTRONICS TECHNOLOGY CO., LTD. Address before: 710000, No. 9, No. 32 Road, foreign exchange Road, new industrial zone, Xi'an hi tech Zone, Shaanxi Patentee before: Dong Pusong |