CN2836348Y - Integrated locomotive signal detection and display unit - Google Patents
Integrated locomotive signal detection and display unit Download PDFInfo
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- CN2836348Y CN2836348Y CN 200620118943 CN200620118943U CN2836348Y CN 2836348 Y CN2836348 Y CN 2836348Y CN 200620118943 CN200620118943 CN 200620118943 CN 200620118943 U CN200620118943 U CN 200620118943U CN 2836348 Y CN2836348 Y CN 2836348Y
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Abstract
The utility model relates to an integrated locomotive signal detection and display unit, particularly a vehicle carried unit used as a locomotive signal of a running warrant. The utility model solves the problems of complicated switching of a host machine and a reserve machine, poor reliability and low safety existing in a signal system of the existing railway locomotive. Signals obtained by a receiving coil A (2) and a receiving coil B (3) are respectively delivered to a first sampling processing DSP circuit (1-3) and a second sampling processing DSP circuit (1-10) through a signal processing unit and a controllable gain amplifier (1-4). A first comparing and output control DSP circuit (1-5) and a second comparing and output control DSP circuit (1-9) are used for determining display results according to sampling information. The display results are judged to be whether or not consistent through a CAN bus (1-11). Then, display control signals are output. The utility model can adapt to various automatic blocking systems of alternating-current count, polar-frequency pulses, the information of frequency shift automatic blocking 4, etc., existing in Chinese railways and has the advantages of high safety and high reliability.
Description
Technical field
The utility model relates to a kind of cab signal vehicular equipment as running token.
Background technology
Raising along with the cab signal status, there have been deeply further and unified understanding in each side to the problem of cab signal, China railways new " skill rule " has proposed the notion of cab signal subject highlighting, the 91st regulation wherein: " cab signal as running token is the main body cab signal; be the system that is made of jointly cab signal and trackside signal facility; must meet the principle of fail-safe, and mobile unit should have the function of service data record; Trackside signal facility should be able to correctly send information." the integrated of cab signal be a system engineering, a kind of vehicle-mounted cab signaling equipment with high reliability and high security is the indispensable safety control device of subject highlighting, train speed raising that advances cab signal.Principle according to fail-safe, vehicle-mounted cab signaling equipment all has independently work system of two of main frame and standby hosts, the Chinese patent of ZL92224023.X for example, though it provides two cover input and treatment systems, but it exists main frame and guest machine to switch complexity, poor reliability, the low problem of fail safe, so eager needs are developed more science, more reliable cab signal system.
The utility model content
Exist main frame and standby host to switch complexity, poor reliability, the low problem of fail safe in order to solve existing railroad vehicle signaling system, the utility model has been developed a kind of subject highlighting cab signal detection and display unit.Subject highlighting cab signal detection of the present utility model and display unit comprise receiving coil A, receiving coil B, indication mechanism, and receiving coil A and receiving coil B are used to obtain the signal of telecommunication on the railroad track; Described device comprises that also host signal detects control circuit, standby host input control circuit and the TAX2 case public information detector that kilometer post information is provided, it is identical with the structure of standby host input control circuit that host signal detects control circuit, host signal detects control circuit and standby host input control circuit comprises first signal processing unit respectively, the secondary signal processing unit, the first sampling processing DSP circuit, controllable gain amplifier, the second sampling processing DSP circuit, first relatively reaches output control DSP circuit, second relatively reaches output control DSP circuit, the Supervised Control circuit, display driver circuit, first power supply, second source and CAN bus, the output of receiving coil A connects the input that host signal detects first signal processing unit of control circuit and standby host input control circuit, and the output of receiving coil B connects the input that host signal detects the secondary signal processing unit of control circuit and standby host input control circuit; Detect in control circuit and the standby host input control circuit at host signal, the output of first signal processing unit and secondary signal processing unit is connected two inputs of controllable gain amplifier respectively, an output of controllable gain amplifier connects the signal input part of the first sampling processing DSP circuit, another output of controllable gain amplifier connects the signal input part of the second sampling processing DSP circuit, the data output end of the first sampling processing DSP circuit connects first and relatively reaches the data input pin that the DSP circuit is controlled in output, the data output end of the second sampling processing DSP circuit connects second and relatively reaches the data input pin that the DSP circuit is controlled in output, the control end that the control signal end of the first sampling processing DSP circuit and first relatively reaches output control DSP circuit links to each other by the CAN bus, the control end that the control signal end of the second sampling processing DSP circuit and second relatively reaches output control DSP circuit also links to each other by the CAN bus, first relatively reaches the Control on Communication end that output control DSP circuit and second relatively reaches output control DSP circuit links to each other by the CAN bus, first relatively reaches output control DSP circuit and second relatively reaches two signal input end that the display control signal output of exporting control DSP circuit is connected the Supervised Control circuit respectively, the output of the first power supply V1 and second source V2 is connected two power inputs of Supervised Control circuit respectively, the output of Supervised Control circuit connects the power input of display driver circuit, the first level controling signal output that relatively reaches output control DSP circuit connects the level control end of display driver circuit, and the output of display driver circuit connects the control input end of indication mechanism; The CAN bus that host signal detects control circuit and standby host input control circuit links together; Providing the kilometer post information output of the TAX2 case public information detector of kilometer post information to detect control circuit and first of standby host input control circuit by 485 buses and host signal relatively reaches output control DSP circuit and second and relatively reaches output control DSP circuit and link to each other.
Operation principle: the utility model utilizes main frame and standby host input control circuit to realize the two-node cluster hot backup working method, and each input control circuit adopts four DSP to constitute independently track signal decode system of two-way DSP, meets the fail-safe principle.As shown in Figure 1, host work, standby host is in heat and is equipped with state, receiving coil A and receiving coil B be acquisition trajectory information and sampled by the first sampling processing DSP circuit in the main frame and the second sampling processing DSP respectively, first relatively reach output control DSP circuit and second and relatively reach output control DSP circuit and carry out decoding processing earlier and judge and determine display result then according to decoded information, these two judged results are determined its consistency by the CAN bus, if unanimity and main frame can operate as normal as a result, then first relatively reach output control DSP circuit and second and relatively reach output control DSP circuit and export control signal f respectively
1And f
2Thereby, drive indication mechanism work, if the result is inconsistent, then do not send display control signal; If a DSP circuit cisco unity malfunction is arranged in the main frame then can't export f
1And f
2, can activate standby host work by the CAN bus so.The utlity model has main frame and standby host two overlaps independently system, improved the reliability of cab signal system; And the utility model can detect the fault that may occur the DSP circuit in main frame and the standby host at any time, to guarantee the normal operation of system works.The utility model utilizes that 485 connections provide kilometer post in the TAX2 case, and the place that the up-downgoing carrier frequency changes is determined, and realizes " release one receives a locking again " to carrier frequency, disturbs thereby suppress the adjacent line signal effectively, need not artificially get involved conversion.
The invention effect: the utility model can adapt to the multiple automatic blocking modes such as ac counting, utmost point pulse frequently, automatic block with audio frequency shift modulated track circuit 4 information, shift frequency 18 information, shift frequency UM71 and ZPW2000 that China railways exists, and also is the digitized locomotive signaling mode spare interface that adopts in the future simultaneously.The utility model is a prerequisite with high security, high reliability, the high maintainability that guarantees system, adopts two-shipper habitual in domestic and international signaling safety system or the high speed rail system relatively to reach the safeguard construction of " two get two ".The utility model carries out redundant configuration from the angle of system to receiving coil, power supply and the display of cab signal, to improve the reliability of whole onboard system.Be the antijamming capability and the decoding speed of raising equipment in addition, the utility model has adopted 32 advanced high-speed dsp technology and frequency domain technique.
Description of drawings
Fig. 1 is a structural representation of the present utility model; Fig. 2 is the structural representation of first signal processing unit 1-1 of the present utility model and secondary signal processing unit 1-2; Fig. 3 is the structural representation of Supervised Control circuit 1-6 of the present utility model and display driver circuit 1-7.
Embodiment
Embodiment one: referring to Fig. 1, subject highlighting cab signal detection of this embodiment and display unit are by receiving coil A2, receiving coil B3, indication mechanism 4, host signal detects control circuit 1, standby host input control circuit 5 is formed with the TAX2 case public information detector 1-12 that kilometer post information is provided, receiving coil A2 and receiving coil B3 are used to obtain the signal of telecommunication on the railroad track, it is identical with the structure of standby host input control circuit 5 that host signal detects control circuit 1, host signal detection control circuit 1 and standby host input control circuit 5 are respectively by the first signal processing unit 1-1, secondary signal processing unit 1-2, the first sampling processing DSP circuit 1-3, controllable gain amplifier 1-4, the second sampling processing DSP circuit 1-10, first relatively reaches output control DSP circuit 1-5, second relatively reaches output control DSP circuit 1-9, Supervised Control circuit 1-6, display driver circuit 1-7, the first power supply V1, second source V2 and CAN bus 1-11 form, the output of receiving coil A2 connects the input that host signal detects the first signal processing unit 1-1 of control circuit 1 and standby host input control circuit 5, and the output of receiving coil B3 connects the input that host signal detects the secondary signal processing unit 1-2 of control circuit 1 and standby host input control circuit 5; Detect in control circuit 1 and the standby host input control circuit 5 at host signal, the output of the first signal processing unit 1-1 and secondary signal processing unit 1-2 is connected two inputs of controllable gain amplifier 1-4 respectively, the output of controllable gain amplifier 1-4 connects the signal input part of the first sampling processing DSP circuit 1-3, another output of controllable gain amplifier 1-4 connects the signal input part of the second sampling processing DSP circuit 1-10, the data output end of the first sampling processing DSP circuit 1-3 connects first and relatively reaches the data input pin that DSP circuit 1-5 is controlled in output, the data output end of the second sampling processing DSP circuit 1-10 connects second and relatively reaches the data input pin that DSP circuit 1-9 is controlled in output, the control end that the control signal end and first of the first sampling processing DSP circuit 1-3 relatively reaches output control DSP circuit 1-5 links to each other by CAN bus 1-11, the control end that the control signal end and second of the second sampling processing DSP circuit 1-10 relatively reaches output control DSP circuit 1-9 also links to each other by CAN bus 1-11, first relatively reaches the Control on Communication end that output control DSP circuit 1-5 and second relatively reaches output control DSP circuit 1-9 links to each other by CAN bus 1-11, first relatively reaches output control DSP circuit 1-5 and second relatively reaches two signal input end that the display control signal output of exporting control DSP circuit 1-9 is connected Supervised Control circuit 1-6 respectively, the output of the first power supply V1 and second source V2 is connected two power inputs of Supervised Control circuit 1-6 respectively, the output of Supervised Control circuit 1-6 connects the power input of display driver circuit 1-7, the first level controling signal output that relatively reaches output control DSP circuit 1-5 connects the level control end of display driver circuit 1-7, and the output of display driver circuit 1-7 connects the control input end of indication mechanism 4; The CAN bus 1-11 that host signal detects control circuit 1 and standby host input control circuit 5 links together; Providing the kilometer post information output of the TAX2 case public information detector 1-12 of kilometer post information to detect control circuit 1 and first of standby host input control circuit 5 by 485 buses and host signal relatively reaches output control DSP circuit 1-5 and second and relatively reaches output control DSP circuit 1-9 and link to each other.The model that the described first sampling processing DSP circuit 1-3 and first relatively reaches output control DSP circuit 1-5 employing is TMS320F2812; The model that the described second sampling processing DSP circuit 1-10 and second relatively reaches output control DSP circuit 1-9 employing is TMS320F2812.
Embodiment two: referring to Fig. 1, this embodiment with the difference of embodiment one is: described host signal detects control circuit 1 and standby host input control circuit 5 also comprises feedback unit 1-8 respectively, the input of feedback unit 1-8 connects the feedback information output of display driver circuit 1-7, and the output of feedback unit 1-8 and first relatively reaches the feedback information input that output control DSP circuit 1-5 and second relatively reaches output control DSP circuit 1-9 and links to each other.Other compositions are identical with embodiment one with annexation.The correctness that the detection that can implement by the feedback element native system shows has improved the reliability of the utility model demonstration and the fail safe of use.
Embodiment three: referring to Fig. 1 and Fig. 2, this embodiment with the difference of embodiment one is: the structure of described first signal processing unit 1-1 and described secondary signal processing unit 1-2 is identical, the described first signal processing unit 1-1 is by filter unit 1-1-1, isolated location 1-1-3, conditioning unit 1-1-2 forms, the output of receiving coil A2 connects the input of isolated location 1-1-3 by filter unit 1-1-1, the output of isolated location 1-1-3 connects the input of conditioning unit 1-1-2, and the output of conditioning unit 1-1-2 connects the input of controllable gain amplifier 1-4.Another input of the output termination controllable gain amplifier 1-4 of the conditioning unit among the secondary signal processing unit 1-2.Other compositions are identical with embodiment one with annexation.The isolated amplifier ISO124 that described isolated location 1-1-3 adopts; Described conditioning unit 1-1-2 adopts operational amplifier.
Embodiment four: referring to Fig. 1 and Fig. 3, this embodiment with the difference of embodiment one is: described Supervised Control circuit 1-6 is made of two groups of Supervised Control unit 1-6-5, every group of Supervised Control unit 1-6-5 is by the first monostable circuit 1-6-1, the second monostable circuit 1-6-2, the first switch 1-6-3 and second switch 1-6-4 form, the first display control signal output that relatively reaches output control DSP circuit 1-5 connects the input of the first monostable circuit 1-6-1 of two groups of Supervised Control unit 1-6-5, the second display control signal output that relatively reaches output control DSP circuit 1-9 connects the input of the second monostable circuit 1-6-2 of two groups of Supervised Control unit 1-6-5, the output of the first monostable circuit 1-6-1 connects the control end of the first switch 1-6-3 in every group of Supervised Control unit 1-6-5, the output of the second monostable circuit 1-6-2 connects the control end of second switch 1-6-4 in every group of Supervised Control unit 1-6-5, the output of the first power supply V1 connects the input of the first switch 1-6-3 of one group of Supervised Control unit 1-6-5, the output of second source V2 connects the input of the first switch 1-6-3 of another group Supervised Control unit 1-6-5, the output of the first switch 1-6-3 connects the input of second switch 1-6-4 in every group of Supervised Control unit 1-6-5, and the output of second switch 1-6-4 connects the power input of display driver circuit 1-7 in every group of Supervised Control unit 1-6-5.Other compositions are identical with embodiment one with annexation.In this embodiment, first relatively reaches the f that output control DSP circuit 1-5 and second relatively reaches output control DSP circuit 1-9 output
1And f
2Be used for controlling the open-minded of two switches of each group Supervised Control unit 1-6-5, all can't normally start indication mechanism as long as there is a DSP circuit to break down.
Embodiment five: referring to Fig. 1 and Fig. 3, this embodiment with the difference of embodiment four is: described display driver circuit 1-7 is made up of level shifting circuit 1-7-1 and power driving circuit 1-7-2, the output of the second switch 1-6-4 of one group of Supervised Control unit 1-6-5 of the power input connection Supervised Control circuit 1-6 of level shifting circuit 1-7-1, the output of the second switch 1-6-4 of another group Supervised Control unit 1-6-5 of the power input connection Supervised Control circuit 1-6 of power driving circuit 1-7-2, the first level controling signal output that relatively reaches output control DSP circuit 1-5 connects the level control end of level shifting circuit 1-7-1, the output of level shifting circuit 1-7-1 connects the control input end of power driving circuit 1-7-2, and the output of power driving circuit 1-7-2 connects the control input end of display driver mechanism 4.Other compositions are identical with embodiment four with annexation.Described power driving circuit 1-7-2 adopts electronic device, comprises pliotron etc., has prolonged the useful life of system and the reliability of security of operation.
Claims (5)
1, subject highlighting cab signal detection and display unit, described device comprise receiving coil A (2), receiving coil B (3), indication mechanism (4), and receiving coil A (2) and receiving coil B (3) are used to obtain the signal of telecommunication on the railroad track; It is characterized in that described device comprises that also host signal detects control circuit (1), standby host input control circuit (5) and the TAX2 case public information detector (1-12) of kilometer post information is provided, it is identical with the structure of standby host input control circuit (5) that host signal detects control circuit (1), host signal detects control circuit (1) and standby host input control circuit (5) comprises first signal processing unit (1-1) respectively, secondary signal processing unit (1-2), the first sampling processing DSP circuit (1-3), controllable gain amplifier (1-4), the second sampling processing DSP circuit (1-10), first relatively reaches output control DSP circuit (1-5), second relatively reaches output control DSP circuit (1-9), Supervised Control circuit (1-6), display driver circuit (1-7), first power supply (V1), second source (V2) and CAN bus (1-11), the output of receiving coil A (2) connects the input that host signal detects first signal processing unit (1-1) of control circuit (1) and standby host input control circuit (5), and the output of receiving coil B (3) connects the input that host signal detects the secondary signal processing unit (1-2) of control circuit (1) and standby host input control circuit (5); Detect in control circuit (1) and the standby host input control circuit (5) at host signal, the output of first signal processing unit (1-1) and secondary signal processing unit (1-2) is connected two inputs of controllable gain amplifier (1-4) respectively, an output of controllable gain amplifier (1-4) connects the signal input part of the first sampling processing DSP circuit (1-3), another output of controllable gain amplifier (1-4) connects the signal input part of the second sampling processing DSP circuit (1-10), the data output end of the first sampling processing DSP circuit (1-3) connects first and relatively reaches the data input pin that DSP circuit (1-5) is controlled in output, the data output end of the second sampling processing DSP circuit (1-10) connects second and relatively reaches the data input pin that DSP circuit (1-9) is controlled in output, the control end that the control signal end of the first sampling processing DSP circuit (1-3) and first relatively reaches output control DSP circuit (1-5) links to each other by CAN bus (1-11), the control end that the control signal end of the second sampling processing DSP circuit (1-10) and second relatively reaches output control DSP circuit (1-9) also links to each other by CAN bus (1-11), first relatively reaches output control DSP circuit (1-5) and second relatively reaches output and controls the Control on Communication end of DSP circuit (1-9) and link to each other by CAN bus (1-11), first relatively reaches output control DSP circuit (1-5) and second relatively reaches two signal input end that the display control signal output of exporting control DSP circuit (1-9) is connected Supervised Control circuit (1-6) respectively, the output of first power supply (V1) and second source (V2) is connected two power inputs of Supervised Control circuit (1-6) respectively, the output of Supervised Control circuit (1-6) connects the power input of display driver circuit (1-7), the first level controling signal output that relatively reaches output control DSP circuit (1-5) connects the level control end of display driver circuit (1-7), and the output of display driver circuit (1-7) connects the control input end of indication mechanism (4); The CAN bus (1-11) that host signal detects control circuit (1) and standby host input control circuit (5) links together; Providing the kilometer post information output of the TAX2 case public information detector (1-12) of kilometer post information to detect control circuit (1) and first of standby host input control circuit (5) by 485 buses and host signal relatively reaches output control DSP circuit (1-5) and second and relatively reaches to export and control DSP circuit (1-9) and link to each other.
2, subject highlighting cab signal detection according to claim 1 and display unit, it is characterized in that described host signal detects control circuit (1) and standby host input control circuit (5) also comprises feedback unit (1-8), the input of feedback unit (1-8) connects the feedback information output of display driver circuit (1-7), and the output of feedback unit (1-8) and first relatively reaches output control DSP circuit (1-5) and second and relatively reaches and export the feedback information input of controlling DSP circuit (1-9) and link to each other.
3, subject highlighting cab signal detection according to claim 1 and display unit, it is characterized in that described first signal processing unit (1-1) is identical with the structure of described secondary signal processing unit (1-2), described first signal processing unit (1-1) is by filter unit (1-1-1), isolated location (1-1-3), conditioning unit (1-1-2) is formed, the output of receiving coil A (2) connects the input of isolated location (1-1-3) by filter unit (1-1-1), the output of isolated location (1-1-3) connects the input of conditioning unit (1-1-2), and the output of conditioning unit (1-1-2) connects an input of controllable gain amplifier (1-4).
4, subject highlighting cab signal detection according to claim 1 and display unit, it is characterized in that described Supervised Control circuit (1-6) is made of two groups of Supervised Control unit (1-6-5), every group of Supervised Control unit (1-6-5) is by first monostable circuit (1-6-1), second monostable circuit (1-6-2), first switch (1-6-3) and second switch (1-6-4) are formed, the first display control signal output that relatively reaches output control DSP circuit (1-5) connects the input of first monostable circuit (1-6-1) of two groups of Supervised Control unit (1-6-5), the second display control signal output that relatively reaches output control DSP circuit (1-9) connects the input of second monostable circuit (1-6-2) of two groups of Supervised Control unit (1-6-5), the output of first monostable circuit (1-6-1) connects the control end of first switch (1-6-3) in every group of Supervised Control unit (1-6-5), the output of second monostable circuit (1-6-2) connects the control end of second switch (1-6-4) in every group of Supervised Control unit (1-6-5), the output of first power supply (V1) connects the input of first switch (1-6-3) of one group of Supervised Control unit (1-6-5), the output of second source (V2) connects the input of first switch (1-6-3) of another group Supervised Control unit (1-6-5), the output of first switch (1-6-3) connects the input of second switch (1-6-4) in every group of Supervised Control unit (1-6-5), and the output of second switch (1-6-4) connects a power input of display driver circuit (1-7) in every group of Supervised Control unit (1-6-5).
5, according to claim 1 or 4 described subject highlighting cab signal detection and display unit, it is characterized in that described display driver circuit (1-7) is made up of level shifting circuit (1-7-1) and power driving circuit (1-7-2), the output of the second switch (1-6-4) of one group of Supervised Control unit (1-6-5) of the power input connection Supervised Control circuit (1-6) of level shifting circuit (1-7-1), the output of the second switch (1-6-4) of another group Supervised Control unit (1-6-5) of the power input connection Supervised Control circuit (1-6) of power driving circuit (1-7-2), the first level controling signal output that relatively reaches output control DSP circuit (1-5) connects the level control end of level shifting circuit (1-7-1), the output of level shifting circuit (1-7-1) connects the control input end of power driving circuit (1-7-2), and the output of power driving circuit (1-7-2) connects the control input end of display driver mechanism (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620118943 CN2836348Y (en) | 2006-06-01 | 2006-06-01 | Integrated locomotive signal detection and display unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620118943 CN2836348Y (en) | 2006-06-01 | 2006-06-01 | Integrated locomotive signal detection and display unit |
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| CN2836348Y true CN2836348Y (en) | 2006-11-08 |
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| CN 200620118943 Expired - Fee Related CN2836348Y (en) | 2006-06-01 | 2006-06-01 | Integrated locomotive signal detection and display unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673576A (en) * | 2012-03-19 | 2012-09-19 | 北京交大思诺科技有限公司 | Vehicle-mounted track circuit signal display and security control method thereof |
| CN105652726A (en) * | 2014-11-12 | 2016-06-08 | 沈阳新松机器人自动化股份有限公司 | Robot safety control apparatus |
| CN107678349A (en) * | 2017-10-23 | 2018-02-09 | 天津市英贝特航天科技有限公司 | Rail transit signal acquisition system |
-
2006
- 2006-06-01 CN CN 200620118943 patent/CN2836348Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673576A (en) * | 2012-03-19 | 2012-09-19 | 北京交大思诺科技有限公司 | Vehicle-mounted track circuit signal display and security control method thereof |
| CN102673576B (en) * | 2012-03-19 | 2015-06-24 | 北京交大思诺科技有限公司 | Vehicle-mounted track circuit signal display and security control method thereof |
| CN105652726A (en) * | 2014-11-12 | 2016-06-08 | 沈阳新松机器人自动化股份有限公司 | Robot safety control apparatus |
| CN107678349A (en) * | 2017-10-23 | 2018-02-09 | 天津市英贝特航天科技有限公司 | Rail transit signal acquisition system |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061108 Termination date: 20130601 |