CN115009326B - Electronic execution unit and redundant system for railway annunciator safety lamp control - Google Patents
Electronic execution unit and redundant system for railway annunciator safety lamp control Download PDFInfo
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- CN115009326B CN115009326B CN202210782835.1A CN202210782835A CN115009326B CN 115009326 B CN115009326 B CN 115009326B CN 202210782835 A CN202210782835 A CN 202210782835A CN 115009326 B CN115009326 B CN 115009326B
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- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/002—Control or safety means for heart-points and crossings of aerial railways, funicular rack-railway
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/12—Visible signals
- B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to an electronic execution unit and a redundant system for controlling a railway annunciator safety lamp, wherein the electronic execution unit comprises a normal lighting circuit, a normal lighting switch, a fault control circuit, a fault switch, a main-standby switching circuit, a first main-standby switch and a second main-standby switch; the redundant system comprises an I-series module, an I-series lighting power supply, an II-series module, an II-series lighting power supply and a safety lamp on a signal machine, wherein the I-series module and the II-series module are all electronic execution units of the invention. In the invention, two systems of modules are connected in parallel, and when one system works, the safety lamp is lighted by the normal lighting output loop of the main system, and the standby system is not lighted; when both systems fail, the safety lamp is lighted by the serial output of the two-system failure lighting output circuit, so that the safety lamp can be lighted according to the expectation, and the influence on the running progress and the safety reaction time under the condition that the safety lamp cannot be lighted according to the expectation is eliminated.
Description
Technical Field
The invention relates to the technical field of traffic information engineering and control, in particular to an electronic execution unit and a redundant system for controlling a safety lamp of a railway annunciator.
Background
Generally, there are two sources of demand for lighting the traffic light safety lamp: one is to turn off the signal according to the operation requirement of the station yard, the signal displays the forbidden light, and the train has to stop in front of the signal; another is the fail-safe principle, where a fault must be directed to a safety light. The definition of railway signal fault-safety is a concept combined in product design, namely, the product is guided or maintained in a safe state when a failure event occurs, and particularly relates to a signal lighting circuit, wherein the safe state when the failure event occurs is light such as a red light, a blue light stop signal or other deceleration signals, and the like, and the specific light and the light position are determined according to the requirements of a system operation scene, and the light position and the light are configured according to requirements.
The signal electronic execution unit is an electronic lighting control device for controlling train operation signal mechanism in railway signal control system. The structure of the electronic execution unit system is mainly divided into a single system and two systems of parallel redundancy, wherein most of the electronic execution unit systems are in single system operation, the single system has a fault-safety function, and only the implementation methods are different, the two systems of parallel redundancy systems are applied and implemented in recent years.
The existing two-system parallel redundancy system usually has the defect that the safety lamp cannot be lightened according to the expected requirement when both systems fail due to the defects of the structure of the two systems, so that the running progress and the safety reaction time are influenced. In addition, the existing redundant system is usually large in module number and complex in structure, and the whole system has the problems of large wiring number, large workload, large wiring occupation space, multiple fault points and the like.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an electronic execution unit and a redundant system for controlling a safety lamp of a railway annunciator, which can light the safety lamp when both systems fail and simplify the system structure.
In order to solve the above problems, the electronic execution unit for controlling a safety lamp of a railway annunciator according to the present invention is characterized by comprising: the normal lighting circuit, the normal lighting switch, the fault control circuit, the fault switch, the main-standby switching circuit, the first main-standby switch and the second main-standby switch; the normal lighting switch is connected with the first main and standby switch in series, the front end of the string is a lighting power supply connecting end, and the rear end of the string is a safety lamp connecting end; the front end of the second main and standby switch is converged with the front end of the series line, and the rear end is a connectable end; the front end and the rear end of the fault switch are connectable ends; the normal lighting circuit is used for: when the system is normal and is the main system, the normal lighting switch is controlled to be opened or closed according to the interlocking control instruction; the fault control circuit is used for: opening the fault switch when the system is normal, and closing the fault switch when the system is faulty; the master-slave switching circuit is used for: when the system fails and is the master system, the system is converted from the master system to the standby system, and when the system fails and is normal, the system is converted from the standby system to the master system; and switching the main and standby systems by controlling the opening and closing of the first main and standby switch and the second main and standby switch.
Preferably, the electronic execution unit further comprises a CPU connected to each of the normal lighting circuit, the fault control circuit, and the active/standby switching circuit, and the CPU is connected to the interlock control.
The invention also provides a redundant system for controlling the safety lamp of the railway annunciator, which comprises an I-system module, an I-system lighting power supply, a II-system module, a II-system lighting power supply and a safety lamp on the annunciator, wherein the I-system module and the II-system module are both the electronic execution units; in the homologous system, the lighting power supply connecting end of the front end of the string of the normal lighting switch and the first main and standby switch is connected with the lighting power supply of the system, and the safety lamp connecting end of the rear end of the string is directly connected with the safety lamp and is used for forming a normal lighting output loop; the fault switches of different systems are connected in series, the rear end of the series line is directly connected with the safety lamp, and the front end of the series line is connected with the second main and standby switch of the system and/or the rear end of the second main and standby switch of the system, so as to form a two-system fault lighting output loop.
Compared with the prior art, the invention has the following advantages:
in the invention, the two systems of modules are connected in parallel, the structure is simple, when in operation, the two systems are electrified, and as long as one system is normal, the safety lamp is lighted by the normal lighting output loop of the main system, and the standby system is not lighted; when both systems fail, the safety lamp is lighted by the serial output of the two-system failure lighting output circuit, so that the safety lamp can be lighted according to the expectation, and the influence on the running progress and the safety reaction time under the condition that the safety lamp cannot be lighted according to the expectation is eliminated.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Fig. 1 is a circuit diagram of an electronic execution unit and a redundant system for railway traffic light safety light control according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of another system according to an embodiment of the present invention.
Fig. 3 is a circuit diagram of another system according to an embodiment of the present invention.
Detailed Description
Example 1 electronic execution Unit for railway annunciator safety Lamp control
Referring to fig. 1 to 3, an embodiment of the present invention provides an electronic execution unit for controlling a traffic light, taking an I-system module 10 as an example, the electronic execution unit specifically includes: a normal lighting circuit 12-1, a normal lighting switch 12-2, a fault control circuit 14-1, a fault switch 14-2, a main/standby switching circuit 13-1, a first main/standby switch 13-2, and a second main/standby switch 13-3. All the above switches are devices for realizing the switching function, such as electronic switches or relay contacts, and the opening and closing of the switches are controlled by respective control circuits.
In practical application, the system also comprises a CPU (Central processing Unit) connected with the normal lighting circuit, the fault control circuit and the main/standby switching circuit, and the CPU controls the three circuits; the CPU is connected to an interlock control 16, and the interlock control 16 is used to issue a safety lamp on command or an off command. The CPU is an on-board microprocessor, and can be a single processor, a two-out-of-two circuit combination of two processors or other safety redundant circuits.
In the I series module 10, a normal lighting switch 12-2 and a first main and standby switch 13-2 are sequentially connected in series, the front end of a string is a lighting power supply connection end, and the rear end of the string is a safety lamp connection end; the front end of the second main and standby switch 13-3 is converged with the front end of the string (both are lighting power supply connection ends), and the rear end is a connectable end; the front and back ends of the fault switch 14-2 are connectable ends. Wherein the meaning of the connectable end means: and determining whether to connect with other connectable ends according to the requirements, wherein the connectable ends are connected with the requirements, and the connectable ends are free without the requirements.
The normal lighting circuit 12-1 is configured to: when the system is normal and is the main system, the normal lighting switch 12-2 is controlled to be turned on or off according to the interlock control command.
The fault control circuit 14-1 is configured to: the fault switch 14-2 is opened when the system is normal, and the fault switch 14-2 is closed when the system is faulty. Wherein the unpowered state is assigned to a "failed" state.
The active-standby switching circuit 13-1 is configured to: the I system module and the II system module are realized under the control of the CPU to become the functions of a main system and a standby system: when the two-system module is normal, the two-system CPU controls the switching of the main system and the standby system, and finally one is the main system and the other is the standby system (the standby system is normal); when the primary system is normal and the primary system is failed, the primary and secondary systems are controlled by the two-system CPU, and finally one primary system and one secondary system (secondary system failure) are obtained; when both systems fail, the two systems CPU controls the switching of the main system and the standby system, and finally the two systems (standby system failure) are obtained. The master/slave switching circuit 13-1 changes the master system from the master system to the slave system when the master system fails and is the master system, and changes the slave system from the slave system to the master system when the slave system fails and is the master system and is normal, specifically: when in a main system, the first main and standby switch 13-2 is closed, and the second main and standby switch 13-3 is opened; in standby, the first main/standby switch 13-2 is opened and the second main/standby switch 13-3 is closed.
Example 2 redundant System-1 for railway annunciator safety light control
Referring to fig. 1, the present invention also provides a redundancy system for railway traffic light safety light control, the redundancy system comprising a group I module 10 and a group I lighting power supply 15, a group II module 20 and a group II lighting power supply 25, and a safety light 30 on the traffic light; both the group I module 10 and the group II module 20 are electronic execution units disclosed in the above embodiment 1. In the case of the system I module 10, the CPU11 is connected to and controls the fault control circuit 14-1, the normal lighting circuit 12-1, and the main/standby switching circuit 13-1, and the lighting power supply connection terminals of the front ends of the strings of the normal lighting switch 12-2 and the first main/standby switch 13-2 are connected to the system lighting power supply 15 (meaning that the front ends of the second main/standby switches 13-3 are also connected to the system lighting power supply 15), and the safety lamp connection terminals of the rear ends of the strings are directly connected to the safety lamp 30 to form a normal lighting output circuit (corresponding to the solid line path in the figure).
The fault switches 14-2, 24-2 of different series are sequentially connected in series, the rear end of the series is directly connected with the safety lamp 30, the front end of the series is connected with the rear ends of the primary second main and standby switch 13-3 and the secondary main and standby switch 23-3 (the primary second and standby switch 13-3 and the secondary second main and standby switch 23-3 are connected in parallel) for forming a two-series fault lighting output loop (corresponding to a dotted line path in the figure), specifically:
the rear end of the fault switch 14-2 in the I system is connected with the front end of the fault switch 24-2 in the II system through 1E, 1F, 2D and 2C to form a series connection; the rear end of the fault switch 24-2 in the II-string is directly connected to the safety light 30 via 2E and 2F. This is the same in fig. 1, 2 and 3.
The front end of the fault switch 14-2 in the I system is connected with the rear end of the second main and standby switch 13-3 in the system through 1C and 1D, 1B and 1A, and the front end of the fault switch is connected with the rear end of the second main and standby switch 23-3 in the II system through 1C and 1D, 1B and 1A, 2B and 2A. Since the front ends of the second main and standby switches (13-3, 23-3) in each system are connected to the local system lighting power supplies (15, 25), in fig. 1, both the two system lighting power supplies are connected to the two system fault lighting output circuits, and both the two system fault lighting output circuits can be supplied with power. In this case, the safety lamp can be turned on even if any one of the lighting power sources is turned off.
Based on the above, the working principle of the system for controlling the safety lamp of the annunciator is as follows: when the system works, the two systems are electrified, and as long as one system is normal, the safety lamp (namely the normal lighting function) is lighted by the normal lighting circuit of the main system, and the standby system is not lighted; when both systems fail, the safety lamp (i.e., the failure lighting function) is lighted by the two systems fail lighting output circuit. The following is a description of the case.
(1) Before the two-system module is powered on and started, the process of igniting the safety lamp
Before the two-system module is powered on and started, the second main and standby switches 13-3, 23-3 and the fault switches 14-2, 24-2 are all closed because the two-system module is not powered on, that is, the two-system fault lighting output circuits are turned on, and the lighting power supplies 15, 25 light the safety lamp 30 (parallel output) through the two-system fault lighting output circuits.
The normal lighting switches 12-2, 22-2 and the first main and standby switches 13-2, 23-2 of the two-system module are both turned off, and the normal lighting output loops of the two-system module are both turned off, so that the two paths cannot be used for lighting.
(2) The process of lighting the safety lamp under the condition that the single-system module is independently electrified or the I system is normal and the II system fails
Taking the I-system module 10 as an example, the I-system module 10 is mainly used when in single-system operation, the normal lighting switch 12-2 and the first main and standby switch 13-2 are turned on, that is, the I-system normal lighting output circuit is turned on, and the safety lamp 30 is lighted through the path.
In the two-system fault lighting output circuit, the second main/standby switch 23-3 and the fault switch 24-2 are closed due to the fault of the II-system module 20, but the second main/standby switch 13-3 and the fault switch 14-2 of the I-system module 10 are opened, so that the whole circuit is opened and cannot be lighted through the path.
The normal lighting output circuit of the II series is not powered on or fails, and is standby, the normal lighting switch 22-2 and the first main and standby switch 23-2 are both opened, the whole circuit is opened, and lighting cannot be performed through the path.
(3) When the two-system modules are powered on simultaneously or sequentially, the process of lighting the safety lamp
One of the two systems of main/standby switching circuits is used as a main system, the other system of modules is used as a standby system, so as to form a main/standby working mode, the I system of modules is used as a main system, and the II system of modules is used as a standby system for example:
the I-system module 10 is mainly operated when in a single system operation, the normal lighting switch 12-2 and the first main/standby switch 13-2 are closed, that is, the I-system normal lighting output circuit is turned on, and the safety lamp 30 is lighted through the path.
In the two-system fault lighting output circuit, since the II-system module 20 is normal and is in standby, the second main/standby switch 23-3 is closed, but the fault switches 14-2, 24-2 are opened, and the whole circuit is opened, so that the lighting cannot be performed through the path.
In the normal II-series lighting output circuit, since the II-series module 20 is normal and in standby, the normal lighting switch 22-2 and the first main/standby switch 23-2 are both turned off, and cannot be lighted through this path.
(4) When the main system is changed into fault and the standby system is also changed into fault, the process of lighting the safety lamp
Because both the two-system modules fail, the second main and standby switches 13-3, 23-3 and the failure switches 14-2, 24-2 are closed, i.e. the two-system failure lighting output circuit is turned on: the lighting power supplies 15, 25 are connected in parallel through the second main/standby switches 13-3, 23-3, the two series fault switches 14-2, 24-2 are connected in series, and the two series fault lighting output circuit lights the safety lamp 30 (the lighting power supplies 15, 25 are output in parallel).
Because both the two-system module fails, both the normal lighting switches 12-2, 22-2 and the first main and standby switches 13-2, 23-2 of the two-system module are turned off, and the normal lighting output loops of the two-system module are turned off, so that the two-system module cannot be lighted through the two paths.
Example 3 redundant System-2 for railway annunciator safety light control
Referring to fig. 2, the fault switches of different series are sequentially connected in series, and the rear end of the series is directly connected with the safety lamp 30, and the front end of the series is connected with the rear end of the second main/standby switch of the series only, so as to form a two-series fault lighting output loop.
Specifically, the connection relationship of the rear end of the fail switch 14-2 in the I system is the same as that of embodiment 2; the front end of the fault switch 14-2 in the I system is only connected with the rear end of the second main and standby switch 13-3 in the system (I system) and is not connected with the rear end of the second main and standby switch 23-3 in the II system, and the rear end of the second main and standby switch 23-3 in the II system is empty. In this case, only the I-series lighting power supply 15 is connected to the two-series fault lighting output circuits. The other contents are the same as in example 2.
Example 4 redundant System-3 for railway annunciator safety light control
Referring to fig. 3, the fault switches of different series are sequentially connected in series, and the rear end of the series is directly connected with the safety lamp 30, and the front end of the series is connected with the rear end of the second main and standby switch of the series only, so as to form a two-series fault lighting output loop.
Specifically, the connection relationship of the rear end of the fail switch 14-2 in the I system is the same as that of embodiment 2; the front end of the fault switch 14-2 in the system I is only connected with the rear end of the second main and standby switch 23-3 in the system II, but not connected with the rear end of the second main and standby switch 13-3 in the system (system I), and the rear end of the second main and standby switch 23-3 in the system (system I) is empty. In this case, only the II-series lighting power supply 25 is connected to the two-series fault lighting output circuit. The other contents are the same as in example 2.
The technical scheme provided by the invention is described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (2)
1. The redundant system for controlling the safety lamp of the railway annunciator comprises an electronic execution unit, wherein the electronic execution unit comprises a normal lighting circuit, a normal lighting switch, a fault control circuit, a fault switch, a main-standby switching circuit, a first main-standby switch and a second main-standby switch; the normal lighting switch is connected with the first main and standby switch in series, the front end of the string is a lighting power supply connecting end, and the rear end of the string is a safety lamp connecting end; the front end of the second main and standby switch is converged with the front end of the series line, and the rear end is a connectable end; the front end and the rear end of the fault switch are connectable ends; the normal lighting circuit is used for: when the system is normal and is the main system, the normal lighting switch is controlled to be opened or closed according to the interlocking control instruction; the fault control circuit is used for: opening the fault switch when the system is normal, and closing the fault switch when the system is faulty; the master-slave switching circuit is used for: when the system fails and is the master system, the system is converted from the master system to the standby system, and when the system fails and is normal, the system is converted from the standby system to the master system; the switching of the main and standby systems is realized by controlling the opening and closing of the first main and standby switch and the second main and standby switch, and the system is characterized by comprising an I system module, an I system lighting power supply, a II system module, an II system lighting power supply and a safety lamp on a signal machine, wherein the I system module and the II system module are both the electronic execution units;
in the homologous system, the lighting power supply connecting end of the front end of the string of the normal lighting switch and the first main and standby switch is connected with the lighting power supply of the system, and the safety lamp connecting end of the rear end of the string is directly connected with the safety lamp and is used for forming a normal lighting output loop;
the fault switches of different systems are connected in series, the rear end of the series line is directly connected with the safety lamp, and the front end of the series line is connected with the second main and standby switch of the system and/or the rear end of the second main and standby switch of the system, so as to form a two-system fault lighting output loop.
2. The redundancy system for railway traffic light control as in claim 1, wherein the electronic execution unit further comprises a CPU connected to each of the normal lighting circuit, the fault control circuit, and the active-standby switching circuit, and wherein the CPU is connected to the interlock control.
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| CN202210782835.1A CN115009326B (en) | 2022-07-05 | 2022-07-05 | Electronic execution unit and redundant system for railway annunciator safety lamp control |
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| CN202210782835.1A CN115009326B (en) | 2022-07-05 | 2022-07-05 | Electronic execution unit and redundant system for railway annunciator safety lamp control |
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| CN115009326B true CN115009326B (en) | 2023-07-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103019218B (en) * | 2012-12-26 | 2014-08-20 | 北京国铁路阳技术有限公司 | Railway signal device utilizing dual-CPU (central processing unit) redundancy and control method of railway signal device |
| CN110716421B (en) * | 2018-07-11 | 2023-11-24 | 兰州大成铁路信号股份有限公司 | Execution unit switching circuit, electronic execution system comprising same and switching method |
| CN110716422B (en) * | 2018-07-11 | 2024-01-26 | 兰州大成铁路信号股份有限公司 | Electronic execution unit, electronic execution system comprising same and switching method |
| CN111275994B (en) * | 2020-01-16 | 2021-07-20 | 浙江众合科技股份有限公司 | Signal machine red light control system under interlocking is used |
| CN113682348A (en) * | 2021-08-25 | 2021-11-23 | 湖南中车时代通信信号有限公司 | Novel interlocking dual-computer switching method based on communication |
| CN114407975B (en) * | 2021-12-21 | 2024-04-19 | 合肥工大高科信息科技股份有限公司 | Hot standby method of execution unit of all-electronic interlocking system and hot standby interlocking system |
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Address after: No. 4200, West Section of Zhongchuan Street, Lanzhou New Area, Lanzhou, Gansu 730087 Patentee after: Lanzhou Dacheng Railway Signal Co.,Ltd. Address before: 730300 No. 4200, west section of Zhongchuan street, Lanzhou New District, Lanzhou City, Gansu Province Patentee before: LANZHOU DACHENG RAILWAY SIGNAL Co.,Ltd. |