CN101136648A - Fixed information transmission control device for CTCS standard based point mode responder - Google Patents
Fixed information transmission control device for CTCS standard based point mode responder Download PDFInfo
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- CN101136648A CN101136648A CNA2007100356590A CN200710035659A CN101136648A CN 101136648 A CN101136648 A CN 101136648A CN A2007100356590 A CNA2007100356590 A CN A2007100356590A CN 200710035659 A CN200710035659 A CN 200710035659A CN 101136648 A CN101136648 A CN 101136648A
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Abstract
This invention relates to a control device for emission of fixed information of a dot responder based on CTCS standard including an inductance antenna unit of a responder, a wave transformation unit, a CPU, a FSK modulator unit, a low-pass filter, an amplifying output unit and a supply unit of the responder connected with the above mentioned units, which includes a limit unit, a rectifying unit and a voltage adjustment unit, in which, the responder inductance antenna unit receiving power signals sent by inquiry devices of a train is connected with the voltage adjustment unit by the limit unit and the rectifying unit and the wave transformation unit picking up signals of a system working clock from the inductance antenna resonance frequency signal is connected with the CPU and signals read by the CPU are output via the FSK modulator unit, the low pass filter and the amplifying and output unit.
Description
Technical field
The present invention is mainly concerned with the control field of railway locomotive safety means, refers in particular to a kind of fix information launch control unit of the dot-mode transponder based on the CTCS standard.
Background technology
In recent years, along with improving constantly of train running speed, the further increasing of operation density, railway transportation is more and more higher to the requirement of train control system (ATC system), and existing equipment is because with low content of technology, and its controlled function does not but obtain best performance.In the rail transportation system abroad, all be to use special-purpose ground installation to provide the absolute location information of train to onboard system basically, this equipment is exactly dot-mode transponder.ERTMS/ETCS (the European railway transport administration system/European Train Control System) system in Europe is the train control system of at present most advanced in the world, system.Railroad has been formulated the standard (CTCS standard) of Chinese train control system with reference to the requirement of ETRMS/ETCS, and in this standard, ground fix information transponder is that dot-mode transponder is a device crucial in the system.Because it will make the automaticity of train control system be further enhanced, the development level of China ATC system will be strided forward to higher level.
Summary of the invention
The problem to be solved in the present invention just is: at the technical problem that prior art exists, the invention provides a kind of simple in structure, with low cost, low in energy consumption, accuracy is high and do not need the fix information launch control unit based on the dot-mode transponder of CTCS standard of additional power source.
For solving the problems of the technologies described above, the solution that the present invention proposes is: a kind of fix information launch control unit of the dot-mode transponder based on the CTCS standard, it is characterized in that: it comprises transponder induction antenna unit, the waveform transformation unit, Main Control Unit, the FSK modulator unit, low pass filter, the transponder power subsystem that amplifies output unit and link to each other with above-mentioned parts, described transponder power subsystem comprises the amplitude limit unit, rectification unit and voltage-regulation unit, the transponder induction antenna unit that is used for receiving power signal that requestor sends on the train links to each other with the voltage-regulation unit with rectification unit by the amplitude limit unit successively, be used for that the waveform transformation unit of extraction system work clock signal links to each other with Main Control Unit from the induction antenna resonant frequency signal, the signal after Main Control Unit reads is successively by the FSK modulator unit, export behind low pass filter and the amplification output unit.
Be provided with magnetic coupling isolated location between described waveform transformation unit and the Main Control Unit.
Be provided with isolating transformer between described FSK modulator unit and the low pass filter.
Described Main Control Unit adopts low-power consumption CPLD chip EPM240GT100C3N.
Described FSK modulator unit adopts DDS chip AD9834.
Described magnetic coupling isolated location adopts chip ADUM1100
Compared with prior art, advantage of the present invention just is:
1, the present invention is based on the fix information launch control unit of the dot-mode transponder of CTCS standard, simple in structure, with low cost, low in energy consumption, accuracy is high and do not need additional power source, because the power carrier power of being accepted on the ground transponder antenna has only about 23dbm, and low power capabilities of the present invention can satisfy its needs; Because device of the present invention mainly is to apply to speed per hour on the above high-speed railway of 100Km/h, is that 100Km/h is that example has only 21ms by the time of this device with the vehicle speed per hour.Vehicle by the time need this device from " sleep " state need to send at least 2 group messages simultaneously to operating state, this must install precision to this and propose very high requirement.
2, the present invention is based on the fix information launch control unit of the dot-mode transponder of CTCS standard, have good Electro Magnetic Compatibility, can satisfy country's Electro Magnetic Compatibility standard relevant, can adapt to various abominable electromagnetic environments with railway; Because this device is in the abominable electromagnetic environment, control unit therefore (removing induction antenna) all is installed in the shielding box, can reduce external interference of this device so greatly and also improve simultaneously the antijamming capability of self.Analog ground and Digital Signals ground partly partly with this device when design has all adopted quarantine measures, can improve its antijamming capability greatly like this.
3, the present invention is based on the fix information launch control unit of the dot-mode transponder of CTCS standard, because Main Control Unit adopts EPM240GT100C3N, the UFM of the 8K that itself had (user definition flash) can save the memory of a message information like this, has simplified system configuration greatly;
4, the present invention is based on the fix information launch control unit of the dot-mode transponder of CTCS standard, because just considered that on the hardware type selecting this equipment will be operated in the low temperature rugged environment, therefore all adopted the technical grade chip, make this complete equipment can be in the time of-45 ℃ to 70 ℃ can operate as normal, satisfied the demand of various bad working environment.
Description of drawings
Fig. 1 is a frame structure schematic diagram of the present invention;
Fig. 2 is the circuit theory schematic diagram of transponder power subsystem among the present invention;
Fig. 3 is the circuit theory schematic diagram of Main Control Unit among the present invention;
Fig. 4 is the circuit theory schematic diagram of magnetic coupling among the present invention, transformer isolation unit;
Fig. 5 is the circuit theory schematic diagram of FSK modulator unit among the present invention;
Fig. 6 is the circuit theory schematic diagram that amplifies among the present invention;
Fig. 7 is the circuit theory diagrams of induction antenna of the present invention, low-pass filter unit output unit.
Marginal data
1, transponder induction antenna unit 2, amplitude limit unit
3, rectification unit 4, voltage-regulation unit
5, waveform transformation unit 6, Main Control Unit
7, FSK modulator unit 8, low pass filter unit
9, amplify output unit 10, magnetic coupling isolated location
11, isolating transformer unit
Embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
As shown in Figure 1, the present invention is based on the fix information launch control unit of the dot-mode transponder of CTCS standard, it comprises transponder induction antenna unit 1, waveform transformation unit 5, Main Control Unit 6, FSK modulator unit 7, low pass filter 8, the transponder power subsystem that amplifies output unit 9 and link to each other with above-mentioned parts, described transponder power subsystem comprises amplitude limit unit 2, rectification unit 3 and voltage-regulation unit 4, the transponder induction antenna unit 1 that is used for receiving requestor 10 power signal that sends on the train links to each other with voltage-regulation unit 4 with rectification unit 3 by amplitude limit unit 2 successively, be used for that the waveform transformation unit 5 of extraction system work clock signal links to each other with Main Control Unit 6 from the induction antenna resonant frequency signal, the signal after Main Control Unit 6 reads is successively by FSK modulator unit 7, low pass filter 8 and the 9 back outputs of amplification output unit.In preferred embodiment, be provided with magnetic coupling isolated location 10 between waveform transformation unit 5 and the Main Control Unit 6; Be provided with isolating transformer 11 between FSK modulator unit 7 and low pass filter 8 and the amplifying unit 9.
This device is the power waves of 27.095MHz by the input centre frequency of induction 27M power induction antenna collection, because it is from big to small a process more from small to large that train is answered magnetic field intensity between the two spatial impression when the ground transponder, so in antenna was effectively accepted distance, the power that receives had bigger dynamic range.To in big power dynamic range, allow the control device of ground transponder work efficiently, at this moment need input signal is carried out the processing of amplitude limit, thereby avoid receiving excessive radiofrequency signal or excessive external interference signal burning apparatus.As shown in Figure 2, in the present embodiment, amplitude limit unit 2 is made up of the HSMP-2820PIN transient voltage inhibition diode D8 of piezo-resistance R10 and Agilent company, and voltage is stabilized in about 10V.The design of rectification unit 3 in the transponder power subsystem is depended in the design of ground transponder control circuit to a great extent, because rectification unit 3 directly provides power supply for the control section of ground transponder.Has only when the voltage after the rectification reaches a certain value the control section of the transponder output modulation signal of just starting working.Therefore in the present embodiment, the rectification unit 3 in the transponder power subsystem has adopted the circuit of three HSMS-2802 shuntings in parallel to carry out voltage multiplying rectifier (as the D1 among Fig. 2, D2, D3, D4, D5, D6).The voltage multiplying rectifier mode of three parallel connections of employing can improve the efficient of rectification circuit.Voltage-regulation unit 4 is for required different electric pressures being provided for the back circuit part, the LM3100 (as the U3 shown among Fig. 2) of national semiconductor (state half company) and a plurality of voltage gradation circuit that LP3872-1.8 (U4 as shown in Figure 2) forms in this device, have been adopted as shown in Figure 2, the voltage of output 1.8V and two kinds of grades of 3.3V.LM3100 has the input voltage range of broad can work reliably between 4.5V-36V, so just can avoid the influence of foregoing instantaneous peak voltage to the rear portion circuit, exports more stable 3.3V simultaneously.LP3872-1.8 is a kind of linear voltage converter that greater efficiency is arranged, and can export more stable 1.8V voltage by it.
As shown in Figure 3, in the present embodiment, Main Control Unit 6 is U5A and U5B, and U5A and U5B all adopt chip EPM240GT100C3N.EPM240GT100C3N is the product of the low-power consumption of the MAXII of altera company series.This device has 240 logical blocks, also has the built-in FLASH of 8K simultaneously.Output signal is the required control signal DDSCS of FSK main control chip AD9834 (chip selection signal of DDS), DDSCLK (serial communication clock), DDSDATA (serial communication data), DDSRST (reset signal), ROMDATA OUT (carrying out frequency by binary code selects).
As shown in Figure 4, in the present embodiment, magnetic coupling isolated location 10 and isolating transformer unit 11.According to the requirement of the related request of European dot-mode transponder standard and CTCS standard for the Frequency Synchronization of the fsk signal that reaches output and mobile unit, in this device, adopted the conducting output and 27M synchronous frequency of waveform transformation unit 5, isolated the back by magnetic coupling isolated location 10 and supply with main controller unit 6 and FSK modulation controller unit 7 by diode D7.As shown in Figure 4, in the present embodiment, magnetic coupling isolated location 10 main chip U6 (shown in U6 among Fig. 4) ADUM1100 that adopt, the input signal of U6 is isolated through entering magnetic coupling isolating device U6 after the current limliting of R12 for the system's dominant frequency signal input signal that is come by rectification circuit with carrying out, and output signal was advanced to draw on the R13 and sent into Main Control Unit 6.In the present embodiment, the input signal of isolating transformer U7 (shown in U7 among Fig. 4) is isolated for the fsk signal by 7 outputs of FSK modulator unit enters isolating transformer device U7 with carrying out, and output signal is sent into and amplified output unit 9.
As shown in Figure 5, in the present embodiment, it is the circuit on basis that the FSK modulator unit adopts the low-power consumption DDS control chip AD9834 (shown in U8 among Fig. 5) based on ADI company.This device has following characteristics: arrowband Spurious Free Dynamic Range (SFDR)〉72db; 3-Wire SPI interface; Maximum reference frequency is 50Mhz, reference frequency output: 0-25MHz.AD9834 is under the driving of reference clock, the frequency of utilizing digital form at first to carry out 28 adds up, carry out 12 phase-accumulated then, inquire about the amplitude that sinusoidal ROM function table obtains corresponding sine wave as the address for high 12 of resultant phase place, i.e. " conversion of the phase width of cloth " obtains analog sine output through 10 D/A conversion and smothing filtering at last again.
As shown in Figure 6, in the present embodiment, amplify output unit 9.The mode that amplifying unit 9 adopts triode to amplify, main devices is 2N5557 (shown in Q1 among Fig. 6).Can reduce the distortion of waveform, more complete originally FSK output signal by the amplification of triode.At last by exporting to the 4M induction antenna after isolating transformer unit 11 (U9 as shown in Figure 6) coupling.
As shown in Figure 7, in the present embodiment, transponder induction antenna unit 1.Be respectively 27M power waves induction antenna and 4M data antenna.27M power waves induction antenna is made up of plate aerial and matching capacitance.The 27M induction antenna act as accepts 27.095M power carrier wave.C23, C24, C25, C26 and C27 are matching capacitance, and they make antenna reach Optimum Matching, and promptly input reflection coefficient on the 27.095M frequency can receive energy as much as possible by antenna in small range.The 4M antenna, they also all are made up of plate aerial, matching capacitance and low pass filter unit 8.The 4M antenna act as the emission fsk signal.C20, C21, C22 and L1 have constituted the interference that low pass filter unit 8, the first can filtering 27M signal, have also realized the coupling of antenna in the 4M frequency range simultaneously.
Claims (6)
1. fix information launch control unit based on the dot-mode transponder of CTCS standard, it is characterized in that: it comprises transponder induction antenna unit (1), waveform transformation unit (5), Main Control Unit (6), FSK modulator unit (7), low pass filter (8), the transponder power subsystem that amplifies output unit (9) and link to each other with above-mentioned parts, described transponder power subsystem comprises amplitude limit unit (2), rectification unit (3) and voltage-regulation unit (4), the transponder induction antenna unit (1) that is used for receiving requestor on the train (10) power signal that sends links to each other with voltage-regulation unit (4) with rectification unit (3) by amplitude limit unit (2) successively, be used for that the waveform transformation unit (5) of extraction system work clock signal links to each other with Main Control Unit (6) from the induction antenna resonant frequency signal, the signal after Main Control Unit (6) reads is successively by FSK modulator unit (7), low pass filter (8) and the output of amplification output unit (9) back.
2. the fix information launch control unit of the dot-mode transponder based on the CTCS standard according to claim 1 is characterized in that: be provided with magnetic coupling isolated location (10) between described waveform transformation unit (5) and the Main Control Unit (6).
3. the fix information launch control unit of the dot-mode transponder based on the CTCS standard according to claim 1 and 2 is characterized in that: be provided with isolating transformer (11) between described FSK modulator unit (7) and the low pass filter (8).
4. the fix information launch control unit of the dot-mode transponder based on the CTCS standard according to claim 3 is characterized in that: described Main Control Unit (6) adopts low-power consumption CPLD chip EPM240GT100C3N.
5. the fix information launch control unit of the dot-mode transponder based on the CTCS standard according to claim 4 is characterized in that: described FSK modulator unit (7) adopts DDS chip AD9834.
6. the fix information launch control unit of the dot-mode transponder based on the CTCS standard according to claim 5 is characterized in that: described magnetic coupling isolated location (10) adopts chip ADUM1100.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100356590A CN101136648A (en) | 2007-08-30 | 2007-08-30 | Fixed information transmission control device for CTCS standard based point mode responder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100356590A CN101136648A (en) | 2007-08-30 | 2007-08-30 | Fixed information transmission control device for CTCS standard based point mode responder |
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| CN101136648A true CN101136648A (en) | 2008-03-05 |
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| CNA2007100356590A Pending CN101136648A (en) | 2007-08-30 | 2007-08-30 | Fixed information transmission control device for CTCS standard based point mode responder |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944925A (en) * | 2009-07-09 | 2011-01-12 | 北京首科中系希电信息技术有限公司 | CTCS standard spot responder-based information transceiving device |
| CN101941451A (en) * | 2010-08-31 | 2011-01-12 | 北京交通大学 | Intermittent train control system |
| CN102664846A (en) * | 2012-05-11 | 2012-09-12 | 常州机电职业技术学院 | Frequency shift keying modulation method with configurable carrier frequency and application structure thereof |
| CN104052519A (en) * | 2014-06-13 | 2014-09-17 | 固安信通信号技术股份有限公司 | Duplex antenna applied to BTM system, transponder information reading method and BTM self-checking method |
| CN104302529A (en) * | 2012-03-15 | 2015-01-21 | 阿尔斯通运输科技简易股份公司 | On-board system for generating positioning signal for rail vehicle |
| CN110267862A (en) * | 2016-12-19 | 2019-09-20 | 西门子交通有限公司 | Method for detecting crosstalk phenomenon |
-
2007
- 2007-08-30 CN CNA2007100356590A patent/CN101136648A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944925A (en) * | 2009-07-09 | 2011-01-12 | 北京首科中系希电信息技术有限公司 | CTCS standard spot responder-based information transceiving device |
| CN101941451A (en) * | 2010-08-31 | 2011-01-12 | 北京交通大学 | Intermittent train control system |
| CN101941451B (en) * | 2010-08-31 | 2012-12-05 | 北京交通大学 | Intermittent train control system |
| CN104302529A (en) * | 2012-03-15 | 2015-01-21 | 阿尔斯通运输科技简易股份公司 | On-board system for generating positioning signal for rail vehicle |
| CN106080667A (en) * | 2012-03-15 | 2016-11-09 | 阿尔斯通运输科技简易股份公司 | For generating the onboard system of rolling stock framing signal |
| CN106080666A (en) * | 2012-03-15 | 2016-11-09 | 阿尔斯通运输科技简易股份公司 | For generating the onboard system of rolling stock framing signal |
| CN102664846A (en) * | 2012-05-11 | 2012-09-12 | 常州机电职业技术学院 | Frequency shift keying modulation method with configurable carrier frequency and application structure thereof |
| CN104052519A (en) * | 2014-06-13 | 2014-09-17 | 固安信通信号技术股份有限公司 | Duplex antenna applied to BTM system, transponder information reading method and BTM self-checking method |
| CN110267862A (en) * | 2016-12-19 | 2019-09-20 | 西门子交通有限公司 | Method for detecting crosstalk phenomenon |
| CN110267862B (en) * | 2016-12-19 | 2021-08-20 | 西门子交通有限公司 | Method for detecting crosstalk phenomenon |
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Open date: 20080305 |