CN103023526A - Frequency division multi-channel capacity multiplication type ground transponder - Google Patents
Frequency division multi-channel capacity multiplication type ground transponder Download PDFInfo
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- CN103023526A CN103023526A CN2012105262016A CN201210526201A CN103023526A CN 103023526 A CN103023526 A CN 103023526A CN 2012105262016 A CN2012105262016 A CN 2012105262016A CN 201210526201 A CN201210526201 A CN 201210526201A CN 103023526 A CN103023526 A CN 103023526A
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Abstract
The invention discloses a frequency division multi-channel capacity multiplication type ground transponder and relates to the field of railway traffic safety. The ground transponder comprises original communication channels in the existing ground transponder and at least one newly added communication channel which is used for transmitting data required for train control to vehicle receiving equipment to improve the data capacity of the ground transponder, so that the data volume between the ground transponder and the train receiving equipment is doubled. The communication channel is newly added in the frequency division multi-channel capacity multiplication type ground transponder, the plurality of the communication channels which are in parallel connection operate independently, the data volume of the ground transponder can be enlarged, and the transmission rate of the newly added communication channel in the ground transponder is greatly improved simultaneously, therefore the communication data volume between the ground transponder and the vehicle receiving equipment is further improved, safe, reliable and accurate train control of a train control system can be guaranteed, and traffic safety is further guaranteed.
Description
Technical field
The present invention relates to railway operation safety, be applicable to the train automation field, particularly a kind of frequency multiplexing capacity multiplication type ground transponder.
Background technology
Present China Express Railway, the basic skills of control train is: adopt " Europe " transponder technology.The brief principle of this technology is: the various track datas on ground are stored by ground transponder, such as line length, the gradient, bend, kilometer post, commutation point etc., when train sails the zone of action of ground transponder into, train is the energy of radiation 27MHz earthward, after ground transponder obtained energy, the track data of immediately ground being stored transmitted to locomotive with the FSK mode of frequency regulation of carrier frequency 4.23M.After train receives the information on ground, realize automatic car controlling by train control system more at last through amplification, demodulation, decoding.
Therefore, want to realize that the automatic car controlling of train control system just be unable to do without communicating by letter of ground transponder and onboard reception device, and along with the raising of train travel speed, present ground transponder and the amount of communication data between the onboard reception device too little, can not satisfy the demand, can be safely thereby may have influence on train control system, reliable, accurate car controlling, further affect traffic safety.
Summary of the invention
In order to address the above problem, the invention provides a kind of frequency multiplexing capacity multiplication type ground transponder, can improve the data capacity of ground transponder, thereby increase the amount of communication data between face transponder and the onboard reception device.
A kind of frequency multiplexing capacity multiplication type ground transponder, described ground transponder comprises:
Former communication channel in the existing ground transponder;
And at least one communication channel that increases newly, the described communication channel that increases newly is used for improving the data volume of transponder to the required information of onboard reception device transmission car controlling, makes the data volume multiplication between ground transponder and onboard reception device.
Beneficial effect of the present invention is: a plurality of communication channels parallel operation independently in the frequency multiplexing capacity multiplication type ground transponder provided by the invention, the data volume of ground transponder can be enlarged, the transmission rate of the communication channel that increases newly in this ground transponder simultaneously improves widely, thereby further improve the amount of communication data between ground transponder and the onboard reception device, thereby guaranteed train control system can be safely, reliably, accurately car controlling, further ensured traffic safety.
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Description of drawings
The structured flowchart of the frequency multiplexing capacity multiplication type ground transponder that Fig. 1 provides for the embodiment of the invention;
The system construction drawing schematic diagram that Fig. 2 provides for the embodiment of the invention;
The detailed theory diagram of frequency multiplexing capacity multiplication type ground transponder that Fig. 3 provides for the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention more explicit, below in conjunction with execution mode and accompanying drawing, the present invention is described in further details.At this, exemplary embodiment of the present invention and explanation thereof are mainly used in explaining the present invention, but not as a limitation of the invention.
The embodiment of the invention provides a kind of frequency multiplexing capacity multiplication type ground transponder, as shown in Figure 1, comprise: the former communication channel in the existing ground transponder, and at least one communication channel that increases newly, the described communication channel that increases newly is used for to the required data of onboard reception device transmission car controlling, improve the data capacity of ground transponder, make the amount of communication data multiplication between ground transponder and onboard reception device.
The present invention has realized the multiplication of ground transponder data capacity by increasing at least one communication channel newly, thereby make the amount of communication data multiplication between ground transponder and the onboard reception device, thereby guaranteed train control system can be safely, reliably, accurately car controlling, further ensured traffic safety.
When train sails the zone of action of the frequency multiplexing capacity multiplication type ground transponder that the embodiment of the invention protects into, onboard reception device on the train activates this ground transponder by car antenna downward radiation 27.095MHz energy signal, after this ground transponder is activated, each communication channel of its inside is independent of the required data of onboard reception device transmission car controlling, each communication channel in the onboard reception device is processed above-mentioned data, sends to train control system again; For example, concrete if include communication channel A and communication channel B in this ground transponder, as shown in Figure 2;
Further, as shown in Figure 3, the ground transponder in the embodiment of the invention also comprises the frequency synthesis module, is used for the 27.095MHz energy signal of receiving is processed, and exports above-mentioned former communication channel and the needed carrier frequency of communication channel that increases newly; Wherein because former communication channel is the communication channel in the existing transponder, the carrier frequency that therefore former communication channel needs is 4.23MHz; And because specifically because the energy of the ground transponder protected of the present invention be energy signal by the 27.095MHz of onboard reception device radiation and provide, therefore 27.095MHz namely is that energy is again standard time clock, thus by calculate can know the communication channel that increases newly can with frequency be 13.54MHz, 9.032MHz, 6.77MHz; Concrete, if when only having a communication channel that increases newly in this ground transponder, the carrier frequency that preferred this communication channel needs is 9.032MHz, this is because 13.5MHz is nearer apart from 27.095MHz, being subject to easily stronger 27.095MHz disturbs, and 6.77MHz is nearer apart from 4.23MHz, then the interval of two interchannels is less, the strict demand of filter " squareness factor " can be proposed onboard reception device, can increase difficulty and the cost of receiving equipment, therefore 9.032MHz is optimum frequency as can be known.
Further, the communication channel that increases newly in the embodiment of the invention specifically comprises:
Data memory module is used for the data that storage need to be transferred to onboard reception device;
Modulation module is used for the data that will be transferred to onboard reception device and the carrier frequency of described communication channel are carried out modulation treatment;
Signal transmission module is used for being transferred to onboard reception device with described through the signal after the modulation treatment by sending coil;
Concrete, in embodiments of the present invention, modulation module in the communication channel that increases newly adopts phase keying PSK to carry out modulation treatment, and still adopting frequency shift keying fsk to carry out modulation treatment in the former communication channel, the frequency multiplexing capacity multiplication type ground transponder in the embodiment of the invention adopts the mode of double-standard that the data that are transferred to onboard reception device are carried out modulation treatment like this; And why adopting phase keying PSK to carry out modulation treatment in the communication channel that increases newly, this is because PSK compares with FSK, ASK, not only have higher noise robustness, and its occupied bandwidth is less, can effectively utilize the band resource of channel; If under the condition of same bit error rate, the antijamming capability of PSK in the requirement of signal to noise ratio is better than FSK2 doubly, is better than 4 times of ASK; And in PSK, FSK and these 3 kinds of modulation systems of ASK, consider from the ground transponder this respect that the simplest, the single frequency of PSK and ASK, occupied bandwidth are less, the concentration of energy of emission, power consumption minimum.If adopt frequency modulation just to need two frequencies to take larger bandwidth, power consumption is 2 times of PSK; Consider from the mobile unit this respect, the technical difficulty of realization and cost PSK=FSK, even slightly simpler than FSK, the reason of ASK and FSK forbidding mainly is that antijamming capability is not all right, the application under the 500km/h condition that must look to the future of formulation standard;
Concrete, because the carrier frequency of the communication channel that increases newly is 9.032MHz, and it adopts phase keying PSK to carry out modulation treatment, therefore can improve widely the transmission rate of this communication channel, theoretic maximum transmission rate is 9.032Mbit/s, and owing to be subject in actual applications the restriction of filter level, the transmission rate that signal transmission module in the embodiment of the invention uses is 1.12Mbit/s or 564.48kbit/s, transmission rate than the communication channel in the existing transponder is a lot of soon, so raising along with transmission rate, the data volume of this ground transponder transmission also increases exponentially, thereby has realized the multiplication of the amount of communication data between ground transponder and onboard reception device.
Further, frequency multiplexing capacity multiplication type ground transponder in the embodiment of the invention also comprises the power extraction module and starts control module, wherein the power extraction module is used for extracting the former communication channel electric weight required with the communication channel normal operation that increases newly from the 27.095MHz energy signal of receiving, the startup control module is used for substep and starts above-mentioned former communication channel and the communication channel that increases newly;
Because being the 27.095MHz energy signal from the mobile unit radiation, obtains the required electric weight of ground transponder work among the present invention, and because after having increased communication channel newly, power consumption can increase, make former communication channel cause the delay start of ground transponder because of the energy competition with the communication channel that increases newly, cause not satisfying existing technical conditions, therefore for fear of the generation of the problems referred to above, startup control module among the present invention need to start former communication channel and the communication channel that increases newly step by step, be and start first former communication channel, after energy increases, restart the communication channel that increases newly; Concrete because the communication channel that increases newly adopt low pressure, at a high speed, micro-power device, therefore carry out energy grouping power supply according to the required operating voltage height difference of different circuit devcies, thereby reasonable distribution resource, for example: the communication channel that increases newly of the present invention adopts the PSK phase modulation system just to save energy so this ground transponder of one times than the FSK frequency modulation system of existing communication channel and obtains starting first former communication channel behind the energy, restarts the communication channel that increases newly and can not impact both sides.
Further, the communication channel that increases newly in the embodiment of the invention also comprises filtration module, be used for strengthening the signal attenuation to described former communication channel, mutually crosstalking when stoping interchannel work, specifically " width of cloth-frequently " characteristic curve of the receiving filter by the communication channel that will increase newly is designed to more precipitous " squareness factor " and realizes;
In embodiments of the present invention, if ground transponder of the present invention is newly-increased communication channel only, then can utilize the A5 interface in the existing ground transponder, expansion A5 interface is the ability of communication upwards, and wherein the A5 interface refers to adopt way of electromagnetic induction that the message programming of passive balise is write or fashionable interface is write in the acquiescence message programming of active balise; And write mutually not being related of message in order to guarantee that signal uplink in this channel that increases newly sends with existing descending programming, be independent of each other, so in the present embodiment, when programming is write fashionable, the programming coil is that small coil receives, and when signal uplink is launched, is that large coil sends, both one be " differential mode " signal, one is " common mode " signal, and electromagnetic coupled does not occur each other, and one is large ring, another is little ring, and electromagnetic coupled does not more occur the area difference more yet; One is upward signal, and one is that downstream signal energy rank differs more greatly and can't be coupled, so mutually invariably impact.
The operation principle of the present invention's frequency multiplexing capacity required for protection multiplication type ground transponder is specially: when locomotive sails the zone of action of this ground transponder into, the 27.095MHz energy signal that vehicle-mounted reception antenna sends, the receiving coil of ground transponder receives the energy signal of above-mentioned 27.095MHz, obtain the ground transponder described electric weight that works by the power extraction module, frequency synthesis module in the ground transponder produces the former communication channel carrier frequency required with the communication channel that increases newly according to the energy signal of above-mentioned 27.095MHz simultaneously, and the startup control module starts step by step two communication channels and independently works, the communication channel that namely starts is first restarted the communication channel that increases newly; Describe as an example of the communication channel that increases newly example: read the data of storing in the data memory module of the communication channel that increases newly, by modulation module the carrier frequency of the data of reading and this communication channel is carried out phase-modulation (PSK) and process the signal after processing to the onboard reception device radiation modulation by the transmission coil of signal transmission module and ground transponder at last.
A plurality of communication channels parallel operation independently in the frequency multiplexing capacity multiplication type ground transponder provided by the invention, the data volume of ground transponder can be enlarged, the transmission rate of the communication channel that increases newly in this ground transponder simultaneously improves widely, thereby further improve the amount of communication data between ground transponder and the onboard reception device, thereby guaranteed train control system can be safely, reliably, accurately car controlling, further ensured traffic safety.
In a word, to the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. frequency multiplexing capacity multiplication type ground transponder is characterized in that described ground transponder comprises:
Former communication channel in the existing ground transponder;
And at least one communication channel that increases newly, the described communication channel that increases newly is used for improving the data capacity of ground transponder to the required data of onboard reception device transmission car controlling, makes the amount of communication data multiplication between ground transponder and onboard reception device.
2. ground transponder as claimed in claim 1, it is characterized in that, described ground transponder also comprises: the frequency synthesis module, be used for the 27.095MHz energy signal of receiving is processed, and export described former communication channel and the needed carrier frequency of communication channel that increases newly.
3. ground transponder as claimed in claim 1 is characterized in that, the described communication channel that increases newly comprises:
Data memory module is used for the data that storage need to be transferred to onboard reception device;
Modulation module is used for the data that will be transferred to onboard reception device and the carrier frequency of the described communication channel that increases newly are carried out modulation treatment;
Signal transmission module is used for being transferred to described onboard reception device by sending the signal of coil after with modulation treatment.
4. ground transponder as claimed in claim 3 is characterized in that, described modulation module specifically adopts phase keying PSK to modulate.
5. ground transponder as claimed in claim 3 is characterized in that, the transmission rate of described signal transmission module is 1.12Mbit/s or 564.48kbit/s.
6. ground transponder as claimed in claim 1 is characterized in that, described ground transponder also comprises:
The power extraction module is used for extracting the described former communication channel electric weight required with the communication channel normal operation that increases newly from the 27.095MHz energy signal of receiving;
Start control module, be used for substep and start described former communication channel and the communication channel that increases newly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210526201.6A CN103023526B (en) | 2012-12-10 | 2012-12-10 | Frequency multiplexing capacity multiplica type ground transponder |
| CN201510076308.9A CN104601507B (en) | 2012-12-10 | 2012-12-10 | The transponder of capacity multiplica |
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| CN201210526201.6A CN103023526B (en) | 2012-12-10 | 2012-12-10 | Frequency multiplexing capacity multiplica type ground transponder |
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| CN201510076308.9A Division CN104601507B (en) | 2012-12-10 | 2012-12-10 | The transponder of capacity multiplica |
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| CN103023526A true CN103023526A (en) | 2013-04-03 |
| CN103023526B CN103023526B (en) | 2016-04-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292187A (en) * | 2015-10-19 | 2016-02-03 | 北京全路通信信号研究设计院集团有限公司 | Logic control device of transponder |
| CN105429671A (en) * | 2015-12-22 | 2016-03-23 | 通号通信信息集团上海有限公司 | Railway section communication system based on overhead contact line and application thereof |
| CN114070351A (en) * | 2021-11-29 | 2022-02-18 | 北京交大思诺科技股份有限公司 | Transponder transmission system meeting high-speed application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004106133A2 (en) * | 2003-05-22 | 2004-12-09 | General Electric Company | Method and system for controlling locomotives |
| CN101364816A (en) * | 2007-08-06 | 2009-02-11 | 沈阳铁路信号工厂 | Large capacity spot type answering machine |
| CN102780507A (en) * | 2012-08-18 | 2012-11-14 | 骆燕胜 | Dual-frequency responder technology |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004106133A2 (en) * | 2003-05-22 | 2004-12-09 | General Electric Company | Method and system for controlling locomotives |
| CN101364816A (en) * | 2007-08-06 | 2009-02-11 | 沈阳铁路信号工厂 | Large capacity spot type answering machine |
| CN102780507A (en) * | 2012-08-18 | 2012-11-14 | 骆燕胜 | Dual-frequency responder technology |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292187A (en) * | 2015-10-19 | 2016-02-03 | 北京全路通信信号研究设计院集团有限公司 | Logic control device of transponder |
| CN105429671A (en) * | 2015-12-22 | 2016-03-23 | 通号通信信息集团上海有限公司 | Railway section communication system based on overhead contact line and application thereof |
| CN114070351A (en) * | 2021-11-29 | 2022-02-18 | 北京交大思诺科技股份有限公司 | Transponder transmission system meeting high-speed application |
| CN114070351B (en) * | 2021-11-29 | 2023-08-15 | 北京交大思诺科技股份有限公司 | Transponder transmission system capable of meeting high-speed application |
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| CN103023526B (en) | 2016-04-13 |
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