CN113928367B - Switch control system - Google Patents
Switch control system Download PDFInfo
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- CN113928367B CN113928367B CN202111122282.9A CN202111122282A CN113928367B CN 113928367 B CN113928367 B CN 113928367B CN 202111122282 A CN202111122282 A CN 202111122282A CN 113928367 B CN113928367 B CN 113928367B
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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
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
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- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The application provides a turnout control system, which adopts a two-by-two-out architecture; comprising the following steps: the system comprises a first host, a second host, a first switch machine control module and a second switch machine control module; the first host computer works in a master system mode, and the second host computer works in a standby system mode; the first switch machine control module works in a main system mode, and the second switch machine control module works in a standby system mode; the first host and the second host are respectively communicated with the first switch machine control module through an external communication bus; the first host and the second host are respectively communicated with the second switch machine control module through an external communication bus; the first switch machine control module and the second switch machine control module are communicated through an intersystem communication bus and are used for controlling the actions of the switch machines. The application adopts a two-by-two-out architecture, realizes the fixed operation and the reverse operation of the switch machine according to the control command sent by the host, and improves the reliability of the system.
Description
Technical Field
The application relates to the technical field of turnout control, in particular to a turnout control system.
Background
In the prior art, four-wire turnout control circuits are basically gravity type relay combination logic. The fixed operation and the reverse operation, and the fixed meter and the reverse meter of the switch machine are realized through the gravity group of the gravity type relay. Meanwhile, the control circuit is led to the safety side by utilizing the characteristics of power failure and power down of the gravity type relay.
The gravity type relay combination logic has the following problems: the switch position indication is determined only by indicating the polarity of the diode, which is slightly simple, and under certain specific conditions, the external circuit can form diode characteristics, so that false indication is caused, and the safety of the system is affected; secondly, faults frequently occur in the relay due to process materials and the like. The problems seriously affect the safety and reliability of the turnout control circuit, however, turnout control is precisely the most technical requirement and the most fault protection capability in the railway signal control field.
Disclosure of Invention
The application provides a turnout control system which is used for solving the defect of low reliability of the turnout control system in the prior art.
The application provides a turnout control system, which adopts a two-by-two-out architecture; comprising the following steps: the system comprises a first host, a second host, a first switch machine control module and a second switch machine control module;
the first host computer works in a master system mode, and the second host computer works in a standby system mode;
the first switch machine control module works in a main system mode, and the second switch machine control module works in a standby system mode;
the first host and the second host are respectively communicated with the first switch machine control module through an external communication bus;
the first host and the second host are respectively communicated with the second switch machine control module through an external communication bus;
the first switch machine control module and the second switch machine control module are communicated through an intersystem communication bus, and the first switch machine control module and the second switch machine control module are used for controlling actions of the switch machines.
Optionally, the first switch machine control module includes: the first CPU module, the second CPU module and the control circuit module;
the first CPU module and the second CPU module are communicated through pulses;
the first CPU module and the second CPU module are respectively communicated with the control circuit module through pulses;
the control circuit module is connected to the switch machine through an external line.
Optionally, the first CPU module includes: a first CPU, a first external communication interface, and a first inter-system communication interface;
the first external communication interface is connected with the external communication bus;
the first inter-system communication interface is connected with the inter-system communication bus;
the first external communication interface and the first inter-system communication interface are both connected with the first CPU.
Optionally, the second CPU module includes: a second CPU, a second external communication interface, and a second inter-system communication interface;
the second external communication interface is connected with the external communication bus;
the second inter-system communication interface is connected with the inter-system communication bus;
the second external communication interface and the second inter-system communication interface are both connected with the second CPU.
Optionally, the control circuit module includes: a power module and a control module;
the output end of the power supply module is connected with the input end of the control module;
the output end of the control module is connected with the external line.
Optionally, the control module includes: a switching device, a current detector, and a relay set;
the positive electrode of the power supply is connected with the first end of the first switching device, and the second end of the first switching device is connected with the first input end of the relay group;
the negative electrode of the power supply is connected with the first end of the second switching device, and the second end of the second switching device is connected with the second input end of the relay group;
the current detector is arranged between the second end of the first switching device and the first input end of the relay group;
the output end of the relay group is connected to the switch machine through an external line.
Optionally, the control module further comprises: representing a circuit detection module;
the indicating circuit detection module is connected with the relay group and is used for detecting indicating information of the switch machine.
Optionally, the indicating circuit detecting module includes a plurality of external indicating circuit detecting modules, and the plurality of external indicating circuit detecting modules are connected in parallel.
Optionally, the switching device is an insulated gate bipolar transistor IGBT.
Alternatively, the external line is a four-wire external line.
The turnout control system provided by the application adopts the two-by-two architecture to carry out equipment redundancy, ensures that the standby equipment is replaced after the main equipment is damaged, does not influence the normal operation of the system, realizes the fixed operation and the reverse operation of the switch machine through the operation of the switch machine control module according to the control command sent by the host, avoids the control by a circuit only, and improves the reliability of the system.
Drawings
In order to more clearly illustrate the application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a switch control system according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a switch control system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a control circuit module of the switch control system according to the embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms "first," "second," and the like in embodiments of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more.
Fig. 1 is a schematic structural diagram of a switch control system according to an embodiment of the present application, as shown in fig. 1, where the switch control system according to the embodiment of the present application adopts a two-by-two architecture; comprising the following steps: the system comprises a first host, a second host, a first switch machine control module and a second switch machine control module;
the first host computer works in a master system mode, and the second host computer works in a standby system mode;
the first switch machine control module works in a main system mode, and the second switch machine control module works in a standby system mode;
the first host and the second host are respectively communicated with the first switch machine control module through an external communication bus;
the first host and the second host are respectively communicated with the second switch machine control module through an external communication bus;
the first switch machine control module and the second switch machine control module are communicated through an intersystem communication bus, and the first switch machine control module and the second switch machine control module are used for controlling actions of the switch machines.
Specifically, the turnout control system provided by the embodiment of the application adopts a two-by-two-out-of-two architecture, wherein the two-by-two-out-of-two architecture is formed by two sets of identical systems to work simultaneously, one set of system works in a master system mode, the other set of system works in a standby system mode, each set of system adopts two identical computers to process data, and if the outputs of the two computers are consistent, the result is output.
The first host and the first switch machine control module form a first system working in a main system mode, the second host and the second switch machine control module form a second system working in a standby system mode, and the first system and the second system are two identical systems.
The first host and the second host are respectively communicated with the first switch machine control module through external communication buses, the first host and the second host are respectively communicated with the second switch machine control module through external communication buses, namely, the first host can be respectively communicated with the first switch machine control module and the second switch machine control module through external communication buses at the same time, and the second host can be respectively communicated with the first switch machine control module and the second switch machine control module through external communication buses at the same time.
The first host sends control commands to the first switch machine control module and the second switch machine control module simultaneously through an external communication bus, and the first host receives control states of the first switch machine control module and the second switch machine control module through the external communication bus. The second host computer does not send control commands to the first switch machine control module and the second switch machine control module, and the second host computer only receives the control states of the first switch machine control module and the second switch machine control module through an external communication bus, so that whether the second host computer is normal in communication is judged.
The inter-system communication bus is a communication bus between the master and slave systems, and the device in the master system mode and the device in the slave system mode can communicate through the inter-system communication bus. In the application, a first switch machine control module working in a main system mode and a second switch machine control module working in a standby system mode are communicated and interacted with a main system state and a standby system state through an inter-system communication bus.
The first switch machine control module and the second switch machine control module realize fixed operation and reverse operation of the switch machine according to the control command sent by the first host machine or the second host machine, thereby finishing switch conversion.
The turnout control system provided by the application adopts the two-by-two architecture to carry out equipment redundancy, ensures that the standby equipment is replaced after the main equipment is damaged, does not influence the normal operation of the system, realizes the fixed operation and the reverse operation of the switch machine through the operation of the switch machine control module according to the control command sent by the host, avoids the control by a circuit only, and improves the reliability of the system.
Optionally, the first switch machine control module includes: the first CPU module, the second CPU module and the control circuit module;
the first CPU module and the second CPU module are communicated through pulses;
the first CPU module and the second CPU module are respectively communicated with the control circuit module through pulses;
the control circuit module is connected to the switch machine through an external line.
Specifically, fig. 2 is a second schematic structural diagram of a switch control system according to an embodiment of the present application. An isolation belt is arranged between the first CPU module and the second CPU module, and the first CPU module and the second CPU module are communicated through pulses. And isolation belts are arranged between the first CPU module and the second CPU module and the control circuit module respectively, and the first CPU module and the second CPU module are communicated with the control circuit module respectively through pulses.
The first CPU module and the second CPU module receive the control command sent by the first host, analyze the received control command by the first CPU module and the second CPU module, and send the analyzed control command to the control circuit module through pulse if the analysis results are consistent. The control circuit module is connected to the switch machine through an external line, and acts according to the received analyzed control command and realizes the fixed operation and the reverse operation of the switch machine through the external line.
Alternatively, the external line is a four-wire external line.
Specifically, the four-wire system outer lines are X1 line, X2 line, X3 line and X4 line respectively, wherein the X1 line is a turnout positioning indication line, and is also a reversed positioning starting line, the X2 line is a turnout reversed indication line, and is also a positioning reversed starting line, the X3 line is a turnout indication loop, and the X4 line is a turnout indication line.
The four-wire turnout control circuit is mainly used for a traction turnout control circuit of a common single-acting double-acting turnout rail or movable turnout point; the five-wire system turnout control circuit is mainly used for a double-machine and multistage traction speed-up turnout control circuit; the six-wire switch control circuit is mainly used for a common ZD6-E/J, ZD9-C/D type double-machine traction switch control circuit. The application range of the system is improved by adopting basic four-wire system external rays.
According to the turnout control system provided by the application, the first CPU module, the second CPU module and the control circuit module are communicated through the pulse, and the connection is not needed, so that the safety of the system is improved.
Optionally, the first CPU module includes: a first CPU, a first external communication interface, and a first inter-system communication interface;
the first external communication interface is connected with the external communication bus;
the first inter-system communication interface is connected with the inter-system communication bus;
the first external communication interface and the first inter-system communication interface are both connected with the first CPU.
Specifically, a first external communication interface in the first CPU module is connected to an external communication bus, and the first external communication interface is further connected to a first CPU in the first CPU module, so that the first CPU in the first CPU module communicates with the first host, and the first CPU obtains a control command sent by the first host.
The first inter-system communication interface in the first CPU module is connected with the inter-system communication bus, the first inter-system communication interface is connected with the first CPU in the first CPU module, and the second switch machine control module is connected with the inter-system communication bus, so that the first CPU in the first CPU module is communicated with the CPU in the second switch machine control module.
According to the turnout control system provided by the application, the external communication bus is connected through the first external communication interface, the first inter-system communication interface is connected with the inter-system communication bus, the first external communication interface and the second inter-system communication interface are both connected with the second CPU, so that the communication between the host and the first CPU is realized, and the communication between the first switch machine control module and the second switch machine control module is further improved.
Optionally, the second CPU module includes: a second CPU, a second external communication interface, and a second inter-system communication interface;
the second external communication interface is connected with the external communication bus;
the second inter-system communication interface is connected with the inter-system communication bus;
the second external communication interface and the second inter-system communication interface are both connected with the second CPU.
Specifically, the second external communication interface in the second CPU module is connected to the external communication bus, and the second external communication interface is further connected to the second CPU in the second CPU module, so that the second CPU in the second CPU module communicates with the first host, and the second CPU obtains the control command sent by the first host.
The second inter-system communication interface in the second CPU module is connected with the inter-system communication bus, the second inter-system communication interface is connected with the second CPU in the second CPU module, and the second switch machine control module is connected with the inter-system communication bus so that the second CPU in the second CPU module can communicate with the CPU in the second switch machine control module.
The first CPU and the second CPU in the first switch machine control module analyze the acquired control command of the first host machine, compare whether the analysis command is consistent, and if the analysis command is consistent, output the analysis command to a control circuit module in the first switch machine control module.
The first CPU and the second CPU in the second switch machine control module analyze the acquired control command of the first host machine, compare whether the analysis command is consistent, and if the analysis command is consistent, the analysis command does not output the control circuit module in the second switch machine control module.
The turnout control system provided by the application is connected with the external communication bus through the second external communication interface, the second inter-system communication interface is connected with the inter-system communication bus, the second external communication interface and the second inter-system communication interface are both connected with the second CPU, so that the communication between the host and the second CPU is realized, and the communication between the first switch machine control module and the second switch machine control module is further improved.
Optionally, the control circuit module includes: a power module and a control module;
the output end of the power supply module is connected with the input end of the control module;
the output end of the control module is connected with the external line.
Specifically, the output end of the power supply module is connected with the input end of the control module, the power supply module is used for supplying power to the control module, the output end of the control module is connected with the external line, and the control module realizes the fixed operation and the reverse operation of the switch machine through the external line after operating according to the analysis command.
According to the turnout control system provided by the application, the power supply module supplies power to the control module, and the control module realizes the fixed operation and the reverse operation of the switch machine after operating according to the analysis command, so that the reliability of the system is further improved.
Optionally, the control module includes: a switching device, a current detector, and a relay set;
the positive electrode of the power supply is connected with the first end of the first switching device, and the second end of the first switching device is connected with the first input end of the relay group;
the negative electrode of the power supply is connected with the first end of the second switching device, and the second end of the second switching device is connected with the second input end of the relay group;
the current detector is arranged between the second end of the first switching device and the first input end of the relay group;
the output end of the relay group is connected to the switch machine through an external line.
Specifically, fig. 3 is a schematic structural diagram of a control circuit module of the switch control system according to the embodiment of the present application. As shown in fig. 3, the switching device is optionally an insulated gate bipolar transistor IGBT. The IGBT combines the advantages of the metal-oxide semiconductor field effect transistor MOSFET and the power transistor GTR, has the advantages of simple driving, easy protection, no need of buffer circuits, high switching frequency and the like, and further improves the reliability of the system.
The positive electrode of the 220V direct current power supply is connected with the first end of the first IGBT, and the second end of the first IGBT is connected with the first input end of the relay group; the negative electrode of the 220V direct current power supply is connected with the first end of the second IGBT, and the second end of the second IGBT is connected with the second input end of the relay group; the current detector is arranged between the second end of the first IGBT and the first input end of the relay group; the output end of the relay group is connected to the switch machine through X1 line, X2 line, X3 line and X4 line.
The working principle of the control module is as follows:
and the first step is to detect whether the two IGBTs are short-circuited, and if the short-circuit downtime occurs, the second switch machine control module is switched from the working state of the standby mode to the working state of the main mode.
And secondly, if the two IGBTs are not short-circuited, the relay group is operated to suck and drop according to the analysis command, meanwhile, whether the relay group is in place is detected, and if the relay group is not in place, the second switch machine control module is switched from the working state of the standby mode to the working state of the main mode.
And thirdly, if the relay group is in place, operating the on/off of the two IGBTs according to the analysis command, detecting whether the two IGBTs are in place or not, and if the two IGBTs are not in place, switching the second switch machine control module from the working state of the standby mode to the working state of the main mode.
And fourthly, if two IGBTs are in place, detecting the action current of the switch machine in real time by using a current detector, and judging whether the action current has a fault or not and whether the switch machine is in place or not.
And fifthly, turning off the two IGBTs if the switch machine is detected to be in place.
And sixthly, if the two IGBTs are detected to be turned off in place, guiding the relay group to represent the position.
The turnout control system provided by the application realizes an internal self-checking function through the detection of the switching device and the relay group, can control faults in each link, further improves the reliability of the system, has complete monitoring function, can diagnose faults and guide the faults to a safe side, and provides the state of a switch machine control module and the state of the switch machine for intelligent diagnosis and self-checking.
Optionally, the control module further comprises: representing a circuit detection module;
the indicating circuit detection module is connected with the relay group and is used for detecting indicating information of the switch machine.
Specifically, as shown in fig. 3, the 220V ac power supply is transformed by the transformer and then supplies power to the indication circuit detection module, the indication circuit detection module is connected with the relay group, the switch machine is in place, the relay group of the control module also reaches the indication position, the indication circuit detection module is used for detecting indication information of the switch machine, and the indication information can be detected by a dynamic detection method.
The turnout control system provided by the application utilizes the representation circuit detection module to detect the representation information of the switch machine, thereby further improving the diagnosability and maintainability of the system.
Optionally, the indicating circuit detecting module includes a plurality of external indicating circuit detecting modules, and the plurality of external indicating circuit detecting modules are connected in parallel.
Specifically, in the case of the four-wire system external line, the indicating circuit detection module includes an X1 indicating circuit detection module and an X2 indicating circuit detection module, and the X1 indicating circuit detection module and the X2 indicating circuit detection module are connected in parallel.
The turnout control system provided by the application utilizes the plurality of external line representation circuit detection modules to detect the representation information of the switch machine, thereby further improving the diagnosability and maintainability of the system.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (8)
1. A turnout control system is characterized in that a two-by-two-out architecture is adopted;
comprising the following steps: the system comprises a first host, a second host, a first switch machine control module and a second switch machine control module;
the first host computer works in a master system mode, and the second host computer works in a standby system mode;
the first switch machine control module works in a main system mode, and the second switch machine control module works in a standby system mode;
the first host and the second host are respectively communicated with the first switch machine control module through an external communication bus;
the first host and the second host are respectively communicated with the second switch machine control module through an external communication bus;
the first switch machine control module and the second switch machine control module are communicated through an intersystem communication bus, and the first switch machine control module and the second switch machine control module are used for controlling actions of the switch machines;
the first switch machine control module includes: a control circuit module;
the control circuit module is connected to the switch machine through an external line;
the control circuit module includes: a power module and a control module;
the output end of the power supply module is connected with the input end of the control module;
the output end of the control module is connected with the external line;
the control module includes: a switching device, a current detector, and a relay set;
the positive electrode of the power supply is connected with the first end of the first switching device, and the second end of the first switching device is connected with the first input end of the relay group;
the negative electrode of the power supply is connected with the first end of the second switching device, and the second end of the second switching device is connected with the second input end of the relay group;
the current detector is arranged between the second end of the first switching device and the first input end of the relay group;
the output end of the relay group is connected to the switch machine through an external line.
2. The switch control system of claim 1, wherein the first switch machine control module comprises: a first CPU module and a second CPU module;
the first CPU module and the second CPU module are communicated through pulses;
the first CPU module and the second CPU module are respectively communicated with the control circuit module through pulses.
3. The switch control system of claim 2 wherein said first CPU module comprises: a first CPU, a first external communication interface, and a first inter-system communication interface;
the first external communication interface is connected with the external communication bus;
the first inter-system communication interface is connected with the inter-system communication bus;
the first external communication interface and the first inter-system communication interface are both connected with the first CPU.
4. The switch control system of claim 2 wherein said second CPU module comprises: a second CPU, a second external communication interface, and a second inter-system communication interface;
the second external communication interface is connected with the external communication bus;
the second inter-system communication interface is connected with the inter-system communication bus;
the second external communication interface and the second inter-system communication interface are both connected with the second CPU.
5. The switch control system of claim 1, wherein said control module further comprises: representing a circuit detection module;
the indicating circuit detection module is connected with the relay group and is used for detecting indicating information of the switch machine.
6. The switch control system as in claim 5, wherein said indicating circuit detection module comprises a plurality of external indicating circuit detection modules, said plurality of external indicating circuit detection modules being connected in parallel.
7. The switch control system of claim 1 wherein said switching device is an insulated gate bipolar transistor IGBT.
8. The switch control system of claim 1 wherein said exterior lines are four-wire exterior lines.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111122282.9A CN113928367B (en) | 2021-09-24 | 2021-09-24 | Switch control system |
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| CN202111122282.9A CN113928367B (en) | 2021-09-24 | 2021-09-24 | Switch control system |
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| CN113928367A CN113928367A (en) | 2022-01-14 |
| CN113928367B true CN113928367B (en) | 2023-08-18 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740992A (en) * | 2016-11-29 | 2017-05-31 | 卡斯柯信号有限公司 | It is a kind of to be based on two and multiply the two five-wire system turnout drive systems for taking two frameworks |
| CN106740991A (en) * | 2016-11-29 | 2017-05-31 | 卡斯柯信号有限公司 | It is a kind of to be based on two and multiply two four/six line turnout drive systems for taking two frameworks |
| CN107933613A (en) * | 2017-11-27 | 2018-04-20 | 卡斯柯信号有限公司 | It is a kind of to multiply the two non-national standard standard turnout drive systems for taking two frameworks based on two |
| CN212828418U (en) * | 2020-04-10 | 2021-03-30 | 武汉特里技术开发有限公司 | Switch control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10710617B2 (en) * | 2017-08-24 | 2020-07-14 | Alstom Transport Technologies | Control and monitoring device for a switch machine, a system and method for monitoring a switch machine |
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2021
- 2021-09-24 CN CN202111122282.9A patent/CN113928367B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740992A (en) * | 2016-11-29 | 2017-05-31 | 卡斯柯信号有限公司 | It is a kind of to be based on two and multiply the two five-wire system turnout drive systems for taking two frameworks |
| CN106740991A (en) * | 2016-11-29 | 2017-05-31 | 卡斯柯信号有限公司 | It is a kind of to be based on two and multiply two four/six line turnout drive systems for taking two frameworks |
| CN107933613A (en) * | 2017-11-27 | 2018-04-20 | 卡斯柯信号有限公司 | It is a kind of to multiply the two non-national standard standard turnout drive systems for taking two frameworks based on two |
| CN212828418U (en) * | 2020-04-10 | 2021-03-30 | 武汉特里技术开发有限公司 | Switch control system |
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