CN111152816A - Distributed intelligent signal machine control system - Google Patents
Distributed intelligent signal machine control system Download PDFInfo
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- CN111152816A CN111152816A CN202010255008.8A CN202010255008A CN111152816A CN 111152816 A CN111152816 A CN 111152816A CN 202010255008 A CN202010255008 A CN 202010255008A CN 111152816 A CN111152816 A CN 111152816A
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- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 10
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- 238000000034 method Methods 0.000 description 7
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- 238000013461 design Methods 0.000 description 3
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- 230000001052 transient effect Effects 0.000 description 3
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L21/00—Station blocking between signal boxes in one yard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/70—Details of trackside communication
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Abstract
The invention discloses a distributed intelligent annunciator control system, which comprises an all-electronic interlocking control unit and a plurality of remote annunciator control units which are distributed close to corresponding annunciators, wherein the all-electronic interlocking control unit and the remote annunciator control units are communicated with each other through an Ethernet by a switch; the all-electronic interlocking control unit comprises an all-electronic interlocking control unit A system and an all-electronic interlocking control unit B system which are redundant with each other, the all-electronic interlocking control unit A system and the all-electronic interlocking control unit B system respectively comprise a safety control panel 1, a safety control panel 2 and a safety monitoring panel, and the remote annunciator control unit A system and the remote annunciator control unit B system respectively comprise a safety monitoring unit, a safety controller 1, a safety controller 2, a safety driving unit and a safety acquisition unit. The invention greatly reduces the use of relays and outdoor cables, shortens the construction period, reduces the fault probability and maintenance cost of the system and improves the availability of the system.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a signal machine control system.
Background
The signal machine is a railway side basic device of railway and urban rail transit, and a railway signal system using a ground signal as a main signal requires that a driver operates according to the display of the signal machine. Therefore, the correct display of the signal is the basis for guaranteeing the safe operation of the train. In recent years, the rapid development of rail transit in China puts forward new requirements on the design of a signal system, such as shortening of construction period, reduction of construction cost, reduction of later-stage field maintenance cost and improvement of operation efficiency. At present, an existing signal machine control scheme is converted from a centralized traditional computer interlocking scheme to a full electronic interlocking scheme, the use degree of a relay is reduced to a certain degree, the use total amount of outdoor cables is reduced, and the implementability and the maintainability are improved to a certain extent.
The existing full-electronic interlocking system generally adopts a centralized control framework installed in a cage type, and is not beneficial to a scene with low signal machine distribution density.
The centralized architecture is characterized in that: the safety power supply board, the safety control board and the safety input and output board of the system are all placed in a cage, and the output of the signal machine board is connected with a signal machine through long-distance wiring, as shown in figure 1.
The biggest drawbacks of the "centralized" control scheme are: the output board is walked line control semaphore and is gathered the state information of semaphore through long distance, needs to use outdoor cable a large amount. Because the long-distance wiring has high requirements on the construction process, signal equipment faults caused by mixed wires are easy to occur on a plurality of cables, and even a signal machine beyond a certain distance cannot be directly controlled by a long-distance hard wire.
In order to solve the problem of long-distance wiring of a signal control line, the existing scheme is as follows: a "trackside signal control unit" is used. As shown in fig. 2, the biggest difference from the method 1 is that long-distance cabling is changed into a communication unit, and the method can break through the limitation of the length of an output control line of a signal output board, and change the long-distance communication into a method of carrying out long-distance communication through a network and the like, so that the usage amount of outdoor cables is reduced. But the biggest disadvantages of this method are: each is the other control unit of track needs 1 power safety board, 2 safety control panels, 1 semaphore drive plate, if two are the needs 2 power safety boards, 4 safety control panels, 2 semaphore drive plates, the cost is high, lies in the condition that one other control unit of track only controls 1 semaphore very much.
Disclosure of Invention
The invention aims to provide a distributed intelligent annunciator control system, which reduces the use of relays and outdoor cables, reduces the cost and ensures the safety and the usability.
In order to solve the technical problems, the invention adopts the following technical scheme: a distributed intelligent annunciator control system comprises an all-electronic interlocking control unit and a plurality of remote annunciator control units which are distributed close to corresponding annunciators, wherein the all-electronic interlocking control unit and the remote annunciator control units are communicated with each other through an Ethernet by a switch, and a railway safety communication protocol is adopted to guarantee the communication safety;
the system comprises a full-electronic interlocking control unit A system and a full-electronic interlocking control unit B system which are redundant with each other, wherein the full-electronic interlocking control unit A system and the full-electronic interlocking control unit B system both comprise a safety control panel 1, a safety control panel 2 and a safety monitoring panel, the safety control panel 1 and the safety control panel 2 adopt two channels 2 to 2 for synchronous comparison, the safety monitoring panel monitors the states of the safety control panel 1 and the safety control panel 2 in real time, and if the safety control panel fails, the output communication is closed;
the remote signal machine control unit consists of a remote signal machine control unit A system and a remote signal machine control unit B system which are redundant with each other, the remote signal machine control units A and B respectively comprise a safety monitoring unit, a safety controller 1, a safety controller 2, a safety driving unit and a safety acquisition unit, the safety controller 1 and the safety controller 2 respectively receive the safety comparison data issued by the safety control panel 1 and the safety control panel 2 at regular time, when the comparison is consistent, the DOG feeding pulse signals DOG _ Pluse1 and DOG _ Pluse2 are output to the safety monitoring unit, and regularly upload the information of the safe acquisition unit to the full electronic interlocking control unit, the safe monitoring unit outputs the door signal of the whole control unit, and only when the door signal is effective, the safe driving unit is controlled to normally drive the output action, so that the signal lamp is driven.
By adopting the technical scheme, the invention has the following beneficial effects:
1. the distributed intelligent annunciator remote control greatly reduces the use of relays and outdoor cables, shortens the construction period, reduces the construction process requirement, reduces the construction cost, reduces the fault probability and the maintenance cost of the system, and improves the availability of the system.
2. In order to meet the availability of the system, all units in the system have backup, namely, the all-electronic interlocking control unit consists of an all-electronic interlocking control unit A system and an all-electronic interlocking control unit B system which are redundant with each other, and the remote signal machine control unit consists of a remote signal machine control unit A system and a remote signal machine control unit B system which are redundant with each other.
3. In the all-electronic interlocking control unit, a safety monitoring board monitors the state of the safety control board in real time, and if the safety control board fails, output communication is closed; in the remote signal machine control unit, the safety monitoring unit outputs the gatekeeper signal of the whole control unit, and only when the gatekeeper signal is effective, the signal lamp can be driven, when the system fails, the safety power supply is closed, the signal machine output is the power-off safety state, when the system acquires the abnormal state of the signal machine, if the filament current is too large or too small, when the abnormal state of the signal machine is acquired, the system can cut off the external output. Therefore, the safety is high, and the requirement of a safety integrity level SIL4 is met.
The following detailed description of the present invention will be provided in conjunction with the accompanying drawings.
Drawings
The invention is further described with reference to the accompanying drawings and the detailed description below:
FIG. 1 is a diagram of a centralized architecture;
FIG. 2 is a schematic diagram of a trackside signal control unit architecture;
fig. 3 is a schematic diagram of a system architecture of a distributed intelligent annunciator control system according to the present invention;
FIG. 4 is a schematic diagram of a remote signal control unit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 3 and 4, a distributed intelligent annunciator control system includes an all-electronic interlocking control unit and a plurality of remote annunciator control units disposed in a distributed manner near an annunciator, where the all-electronic interlocking control unit and the remote annunciator control units communicate with each other via an ethernet switch, and a railway safety communication protocol is used to ensure communication safety.
The system comprises a full-electronic interlocking control unit A system and a full-electronic interlocking control unit B system which are redundant with each other, wherein the full-electronic interlocking control unit A system and the full-electronic interlocking control unit B system respectively comprise a safety control panel 1, a safety control panel 2, a safety power panel and a safety monitoring panel, the safety monitoring panel monitors the states of the safety control panel 1 and the safety control panel 2 in real time, and if the safety control panel fails, output communication is closed.
The safety control panel 1 and the safety control panel 2 bear the safety service of the system, the two channels 2 are adopted for 2-out-of-2 synchronous comparison, and data information exchange with the remote annunciator control unit is realized through the switch. As shown in fig. 3, the safety control board 1 and the safety control board 2 are connected to the switch through communication a1 and communication a2, respectively, and the safety controller 1 and the safety controller 2 of the remote control units a1 and a2 … AN are connected to the switch through communication a1-1, communication a1-2 …, communication a1-N and a2-1, and communication a2-2 …, communication a2-N, respectively. On one hand, the state information required by the system is collected, and on the other hand, a driving instruction is issued after voting, such as lighting a passing lamp or a forbidden lamp. Meanwhile, the external communication port of the safety control panel is monitored by the safety control panel, and when the safety control panel detects that the danger is invalid, the power supply of the external communication port is closed in time, so that the external communication is cut off.
The remote signal machine control unit consists of a remote signal machine control unit A system and a remote signal machine control unit B system which are redundant with each other, the remote signal machine control units A and B respectively comprise a safety monitoring unit, a safety controller 1, a safety controller 2, a safety driving unit and a safety acquisition unit, the safety controller 1 and the safety controller 2 respectively receive the safety comparison data issued by the safety control panel 1 and the safety control panel 2 at regular time, when the comparison is consistent, the DOG feeding pulse signals DOG _ Pluse1 and DOG _ Pluse2 are output to the safety monitoring unit, and regularly upload the information of the safe acquisition unit to the full electronic interlocking control unit, the safe monitoring unit outputs the door signal of the whole control unit, and only when the door signal is effective, the safe driving unit is controlled to normally drive the output action, so that the signal lamp is driven.
In conclusion, the distributed annunciator is used for remote control, the use of relays and outdoor cables is greatly reduced, the construction period is shortened, the construction process requirement is reduced, the construction cost is reduced, the fault probability and the maintenance cost of the system are reduced, and the availability of the system is improved.
In order to satisfy the availability of the system, all units in the system have backup, i.e. A, B is shown in the figure, and are redundant with each other. The full electronic interlocking unit A and the full electronic interlocking unit B are mutually redundant and are communicated with the remote signal machine control unit, and one signal machine is controlled by two remote signal machine control units which are mutually redundant.
The remote signal machine control unit is arranged on the back of the signal machine, is provided with and only has an Ethernet port connected with the full electronic interlocking control unit, and adopts RSSP-II, namely a railway safety communication protocol II to ensure the communication safety. One all-electronic interlocking control unit can be connected with N remote signal machine control units to control N signal machines, and the performance of the all-electronic interlocking control unit and the performance of the switchboard determine the total number of the signal machines which can be controlled by the system.
As shown in fig. 4, the safety controller 1 and the safety controller 2 receive the safety comparison data sent by the communication 1 and the communication 2 at regular time, the communication 1 and the communication 2 are sent by the safety control board 1 and the safety control board 2, when the comparison is consistent, the DOG feeding pulse signals DOG _ plus 1 and DOG _ plus 2 are output to the safety monitoring unit, and only when the pulse times of the two times of DOG _ plus 1 and DOG _ plus 2 are within the specified range, the monitoring circuit outputs the stable effective level signals DOG _ Ctl _ P and DOG _ Ctl _ N.
Only when DOG _ Ctl _ P is effective, the lighting POWER supply LED POWER of the signal can be successfully generated through monitoring of the POWER supply door unit LED DOG, and the lighting POWER supply DOG _ LED _ POWER is input into the safety driving unit.
The control signals MCU _ Ctl _ P and MCU _ Ctl _ N output by the safety controller 1 and the safety controller 2 must be simultaneously effective with DOG _ Ctl _ P and DOG _ Ctl _ N, and the safety driving unit can receive the effective Ctl _ P and Ctl _ N signals to drive and output, so as to generate the safety lighting POWER SV _ LED _ POWER.
The monitoring circuit is realized by a monostable trigger, when a rising edge or a falling edge comes, the monostable trigger is switched from a steady state to a transient steady state, and after a certain time, the monostable trigger is switched from the transient steady state to the steady state and is kept at the steady state. The transient steady-state time of the monostable flip-flop is determined according to the resistance capacitance.
The monostable flip-flop of the monitoring circuit makes a determination as to whether the pulse periods of DOG _ plus 1 and DOG _ plus 2 are eligible.
(1) When the pulse period meets the design requirement, the output of DOG _ Ctl _ P and DOG _ Ctl _ N is effective, and the safety driving unit can be enabled.
(2) When the pulse period does not meet the design requirement, the output of DOG _ Ctl _ P and DOG _ Ctl _ N is invalid, and the safety driving unit cannot be enabled.
The safety monitoring unit, the safety controller 1 and the safety controller 2 are placed on the same single board. Therefore, the volume is small, the cost is low, and the device is arranged in a signal machine.
The safety controller 1 and the safety controller 2 upload the information collected by the safety collecting unit to the full electronic interlocking unit at regular time through the communication 1 and the communication 2.
A series of monitoring is carried out in the system, and when the monitoring data is fed back to be abnormal, the system is considered to be in a fault, such as communication interruption, for example, the state of return inspection is abnormal, and the like. When the system fails, the safety monitoring unit cuts off the output control of the safety driving unit, so that the output is kept in a power-off safety state.
When the system acquires that the state of the signal machine is abnormal, if the filament current is too large or too small, the safety monitoring unit can cut off the output of the safety driving unit.
Thus, with the various safety settings described above, the present invention meets the requirements of safety integrity level SIL 4.
Other embodiments of the present invention than the preferred embodiments described above, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, should fall within the scope of the present invention defined in the claims.
Claims (8)
1. The utility model provides a distributed intelligent signal machine control system which characterized in that: the system comprises an all-electronic interlocking control unit and a plurality of remote annunciator control units which are distributed close to corresponding annunciators, wherein the all-electronic interlocking control unit and the remote annunciator control units are communicated with each other through an Ethernet through a switch, and a railway safety communication protocol is adopted to guarantee the communication safety;
the system comprises a full-electronic interlocking control unit A system and a full-electronic interlocking control unit B system which are redundant with each other, wherein the full-electronic interlocking control unit A system and the full-electronic interlocking control unit B system both comprise a safety control panel 1, a safety control panel 2 and a safety monitoring panel, the safety control panel 1 and the safety control panel 2 adopt two channels 2 to 2 for synchronous comparison, the safety monitoring panel monitors the states of the safety control panel 1 and the safety control panel 2 in real time, and if the safety control panel fails, the output communication is closed;
the remote signal machine control unit consists of a remote signal machine control unit A system and a remote signal machine control unit B system which are redundant with each other, the remote signal machine control units A and B respectively comprise a safety monitoring unit, a safety controller 1, a safety controller 2, a safety driving unit and a safety acquisition unit, the safety controller 1 and the safety controller 2 respectively receive the safety comparison data issued by the safety control panel 1 and the safety control panel 2 at regular time, when the comparison is consistent, the DOG feeding pulse signals DOG _ Pluse1 and DOG _ Pluse2 are output to the safety monitoring unit, and regularly upload the information of the safe acquisition unit to the full electronic interlocking control unit, the safe monitoring unit outputs the door signal of the whole control unit, and only when the door signal is effective, the safe driving unit is controlled to normally drive the output action, so that the signal lamp is driven.
2. A distributed intelligent annunciator control system as claimed in claim 1, wherein: the remote annunciator control unit is installed inside the annunciator.
3. A distributed intelligent annunciator control system as claimed in claim 1, wherein: when the two pulse times of DOG _ Pluse1 and DOG _ Pluse2 are within a specified range, the safety monitoring unit outputs stable valid level signals DOG _ Ctl _ P and DOG _ Ctl _ N; only when DOG _ Ctl _ P is effective, the lighting power supply of the annunciator can be input into the safety driving unit; the control signals MCU _ Ctl _ P and MCU _ Ctl _ N output by the safety controller 1 and the safety controller 2 must be valid at the same time as DOG _ Ctl _ P and DOG _ Ctl _ N, and the safety driving unit can normally drive the output action.
4. A distributed intelligent annunciator control system as claimed in claim 3, wherein: the safety monitoring unit comprises a monostable flip-flop which judges whether the pulse periods of DOG _ Pluse1 and DOG _ Pluse2 meet a condition.
5. A distributed intelligent annunciator control system as claimed in claim 1, wherein: the safety monitoring unit, the safety controller 1 and the safety controller 2 are arranged on the same single board.
6. A distributed intelligent annunciator control system as claimed in claim 1, wherein: the external communication port of the VC single board is monitored by the safety power board, and when the safety power board detects that the dangerous failure happens, the power supply of the external communication port is closed in time, and the external communication is cut off.
7. A distributed intelligent annunciator control system as claimed in claim 1, wherein: when the system fails, the safety monitoring unit cuts off the output control of the safety driving power supply, so that the output is kept in a power-off safety state.
8. A distributed intelligent annunciator control system as claimed in claim 1, wherein: when the abnormal state of the signal machine is collected, the system can cut off the external output.
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Cited By (5)
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| CN111736563A (en) * | 2020-07-30 | 2020-10-02 | 北京全路通信信号研究设计院集团有限公司 | Control device, distributed control system and control method for annunciator |
| CN112874574A (en) * | 2021-01-27 | 2021-06-01 | 浙江众合科技股份有限公司 | Distributed intelligent switch machine control system |
| RU2760966C1 (en) * | 2021-08-12 | 2021-12-01 | Общество с ограниченной ответственностью "СЕТУНЬ" | System to control train traffic at station |
| RU2761670C1 (en) * | 2021-08-12 | 2021-12-13 | Общество с ограниченной ответственностью "СЕТУНЬ" | Station traffic control system |
| CN114735048A (en) * | 2022-03-17 | 2022-07-12 | 浙江众合科技股份有限公司 | Full electronic interlocking system based on POWERLINK bus architecture |
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| CN111736563A (en) * | 2020-07-30 | 2020-10-02 | 北京全路通信信号研究设计院集团有限公司 | Control device, distributed control system and control method for annunciator |
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| CN114735048A (en) * | 2022-03-17 | 2022-07-12 | 浙江众合科技股份有限公司 | Full electronic interlocking system based on POWERLINK bus architecture |
| CN114735048B (en) * | 2022-03-17 | 2024-06-04 | 浙江众合科技股份有限公司 | All-electronic interlocking system based on POWERLINK bus architecture |
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