CN110968021A - Interlocking machine dual-system switching system and control method - Google Patents
Interlocking machine dual-system switching system and control method Download PDFInfo
- Publication number
- CN110968021A CN110968021A CN201911323129.5A CN201911323129A CN110968021A CN 110968021 A CN110968021 A CN 110968021A CN 201911323129 A CN201911323129 A CN 201911323129A CN 110968021 A CN110968021 A CN 110968021A
- Authority
- CN
- China
- Prior art keywords
- switching
- dual
- interlocking
- module
- slave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Safety Devices In Control Systems (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to an interlocking machine dual-system switching system and a control method, wherein the system comprises a power module, a dual-system switching board, a main-standby switching module, a communication module, a switching module, a lighting module and a watchdog module, wherein the switching module comprises a switching button and an optocoupler, and a switching command is sent to the interlocking machine dual-system by a host machine so as to realize manual switching of the interlocking machine dual-system; the lighting module comprises an indicator light, an optical coupler and a relay, wherein the indicator light receives state data of the interlocking machine double system through the host machine and the slave machine so as to light the indicator light in the corresponding state. The control method adopts a combined fail-safe principle and a redundancy principle. The invention collects the state of the switching button through the host and the slave, sends the switching command, realizes the function of manually switching the interlocking machine dual system, simultaneously realizes the real-time monitoring of the interlocking dual system state, and displays the current states of the two systems in the panel indicator light.
Description
Technical Field
The invention relates to a switching device, in particular to an interlocking machine dual-system switching system and a control method.
Background
In recent years, the development of automatic control technology of railway stations is rapid, and core components such as an interlocking operation computer, interlocking software logic, a driving execution circuit and the like forming the control system are greatly developed and promoted. The domestic railway industry is gradually advancing towards the localization direction on the basis of actively introducing foreign advanced technologies. Meanwhile, the requirements of the railway department on the safety, reliability, availability and maintainability of the computer interlocking system are gradually increased, and the regulation that the safety integrity level of the computer interlocking system reaches the SIL4 level is clearly provided. SIL (safety Integrity level) safety Integrity level certifications are divided into a total of 4 levels, SIL1, SIL2, SIL3 and SIL4, including two levels of products and systems, wherein the requirement of SIL4 is the highest.
The computer running the core interlocking software is no longer a general industrial computer, and is upgraded to a special computer platform with failure-safety characteristics, and the main stream system of the computer is two-out-of-two, three-out-of-two and the like. Domestic railways mainly adopt two systems to two systems. The signal interlocking logic is correspondingly improved, and the standard station rule of the software test center of the railway department is also upgraded from the first edition to the second edition. The drive actuator circuit is developed from a relay type circuit to an electronic actuator circuit.
At present, when one of the dual systems fails or data inconsistency occurs, the dual systems can be automatically switched, and specific connection modes and control methods are disclosed in patent CN109976208A, but when external conditions require the dual systems to be actively switched, hardware devices capable of switching the requirements of the primary and secondary control relationships are lacked, and the display of the primary and secondary control states is lacked.
Disclosure of Invention
Aiming at the problems, the invention provides an interlocking machine dual-system switching system and a control method, wherein the system comprises a power module, a dual-system switching board, a main-standby switching module, a communication module, a switching module, a lighting module and a watchdog module, wherein the power module provides a DC24V power supply, an independent 5V power supply is obtained through a transformer, and then the 5V power supply obtains a 3.3V power supply through a voltage stabilizer and respectively supplies the power supply to other modules; the dual-system switching board comprises an interlocking I system and an interlocking II system; the master-slave conversion module comprises two groups of serial ports, a host and a slave, wherein one group of the two groups of serial ports is COM1 and COM2, the other group of the two groups of serial ports is COM3 and COM4, the two groups of serial ports are in bidirectional communication with the host and in unidirectional communication with the slave, namely the two groups of serial ports send state information of an interlock I system and an interlock II system to the slave; the communication module comprises serial port communication and SPI communication, wherein COM1 and COM2 are communicated with an interlock I system, COM3 and COM4 are communicated with an interlock II system, the host is communicated with the slave SPI, and the SPI communication is used for realizing the synchronization of switching commands; the switching module comprises a switching button and an optical coupler, the switching button is connected with the host and the slave through the optical coupler, and the host sends a switching command to the interlocking machine dual system to realize manual switching of the interlocking machine dual system; the lighting module comprises an indicator lamp, an optocoupler and a relay, one end of the indicator lamp is connected with one end of a normally open contact of the relay in series, the other end of the indicator lamp is grounded, the other end of the normally open contact is connected with a power supply, the main machine and the slave machine excite a relay coil through the optocoupler, so that the normally open contact is closed and connected with the power supply to light the indicator lamp, wherein the indicator lamp comprises a power indicator lamp, an indicator lamp of which the I system or the II system is in a master control mode state, an indicator lamp of which the I system or the II system is in a hot standby mode state, and an indicator lamp of which the I system or the II system is in an off-line mode state, and the indicator lamp receives state data of the double; the watchdog module is used for preventing the software from crashing.
In one embodiment, the serial port communication adopts the two-way communication of the RS422, and the full-duplex operation transmission and reception are not affected each other.
In one embodiment, the number of the switching buttons is two, each switching button is connected with the master machine and the slave machine through an optical coupler, and the master machine sends a switching command to the two systems so as to avoid misoperation.
In one embodiment, the master and the slave adopt a microprocessor with ARM as a core, and the double CPUs are mutually independent and have a two-in-two redundant structure.
In one embodiment, the indicator light is on one panel and the color of the indicator light is three different colors.
In one embodiment, the light is green in the master mode, yellow in the hot standby mode, and red in the offline mode.
A interlocking machine dual system switching system control method, the control method is used for controlling the above-mentioned interlocking machine dual system switching system, wherein, S1, interlock send status information to the master spare conversion module; s2, the main/standby conversion module receives the state information; s3, lighting a corresponding status indicator lamp; s4, the main-standby conversion module collects the state of the switching button; s5, the main-standby conversion module collects a switching command; s6, the main-standby conversion module sends a switching command to the dual-system switching board; s7, the dual system switching is successful; s8, sending current state information to the main/standby conversion module in an interlocking manner; and S9, lighting the corresponding status indicator lamp according to the new status.
In one implementation mode, the two ARM simultaneously collect the states of the switching buttons, if the switching commands are collected, the switching commands are sent to the two interlocking systems by the host computer after the switching commands are compared and consistent through the two ARM, and meanwhile, the panel indicator lamps display the current states.
In one embodiment, a combined fail-safe principle is adopted, that is, the switching button is composed of two independent buttons, and only when the two buttons are pressed simultaneously, the primary/standby switching module receives a switching command, so that the purpose of interlocking machine dual-system switching can be achieved.
In one embodiment, a redundancy principle is adopted, modules all adopt a two-out-of-two logic design structure, the active-standby conversion module comprises a CPU1 subunit and a CPU2 subunit, and the two subunits are independent of each other and independently complete respective functions.
The invention collects the state of the switching button through the host and the slave, sends the switching command, realizes the function of manually switching the interlocking machine dual system, simultaneously realizes the real-time monitoring of the interlocking dual system state, and displays the current states of the two systems in the panel indicator light.
Drawings
Fig. 1 is a schematic structural diagram of an interlock dual-system switching system according to the present invention;
fig. 2 is a schematic view of a lighting logic circuit of the active/standby switching module according to the present invention;
FIG. 3 is a schematic view of the status of the indicator light of the present invention;
fig. 4 is a schematic diagram of a switching circuit of the active/standby switching module according to the present invention;
fig. 5 is a working flow of the active/standby switching module according to the present invention.
Detailed Description
A star full-electronic computer interlocking system (HJ-RSSE) main-standby switching module of a Henry Jun railway signal is an auxiliary module of a control system and is used for completing the state display of two interlocking systems and the manual control two-system switching function.
Fig. 1 is a schematic structural diagram of an interlock dual-system switching system, in which a module includes a master and a slave, that is, two ARM machines, ARM1 and ARM2, which simultaneously receive data of four serial ports, analyze data sent from serial ports COM1, COM2, COM3 and COM4, and output signals light corresponding indicator lights. Meanwhile, the two ARM collect the state of the switching button, and if the switching command is collected, the switching command is sent to the two interlocking systems by the host after the switching command is compared and consistent through the two ARM.
Fig. 2 is a schematic diagram of a lighting logic circuit of the active/standby switching module according to the present invention, wherein the lighting is performed by receiving the interlocked two-system status data from the master CPU and the slave CPU, and outputting a high level after analysis, and turning on the optocoupler, so that the lighting relay is excited, and the normally open contact is closed to turn on the lighting power supply, thereby lighting the corresponding indicator light.
Fig. 3 is a schematic diagram of states of indicator lights according to the present invention, where the number of the indicator lights is 6, and the indicator lights correspond to three modes of two systems, I system or II system in master mode state indicator light, I system or II system in hot standby mode state indicator light, and I system or II system in offline mode state indicator light. The light is green in the master control mode, yellow in the hot standby mode, and red in the offline mode. The two ARM issue state information by receiving the interlocking, and simultaneously output consistent signals to light corresponding indicator lamps.
Fig. 4 is a schematic diagram of a switching circuit of the active/standby switching module according to the present invention, which mainly implements acquisition and uploading of a switching command. The two buttons are pressed, the host and the slave acquire the press state of the buttons, and then the host sends a switching command to the two interlocking systems after the command is consistent through the SPI. Both buttons are effective to press the toggle command.
The system operation environmental conditions are as follows:
first, environmental conditions
Working temperature: 0 to 40 DEG C
Relative humidity: not more than 90% (room temperature +25 ℃ C.)
Atmospheric pressure: 74.8 to 106.2kPa (equivalent to an altitude of not more than 2500 m)
Zero earth potential difference introduced with external power supply is not more than 1.0V
The computer equipment site is required to meet the B-level requirement specified in GB/T2887-2000 general Specification for electronic computer site when being started.
Second, power supply conditions
The computer interlocking power is used as a primary load, is supplied by two independent power supplies and has an automatic switching function so as to ensure uninterrupted power supply; when the main power supply and the auxiliary power supply adopt low-voltage switching (including manual and automatic), the power supply interruption time is not more than 0.15S, and the power supply voltage jump related to the electronic equipment is not more than 5 percent. The computer interlock and the electronic module are provided with a professional power supply and are isolated from an external power supply.
Dc power supplies for computers and electronic devices should have effective pulse and surge interference rejection. When the external power supply of the computer interlock does not have the uninterrupted power supply performance, the direct current power supply of the computer and the electronic equipment has the uninterrupted power supply performance.
Third, electrical characteristic parameters
Power: 6W;
power supply requirements: input voltage: DC28V ± 8%; input current: less than or equal to 0.20A;
the controlled object is: the two systems are interlocked.
Fourthly, unit module:
module function: real-time monitoring of the two-system state of the interlocking is realized, and the current states of the two systems are displayed in a panel indicator light; and collecting the state of the switching button and sending a switching command.
The power supply module provides a DC24V power supply, obtains an independent 5V power supply through HZ05-24S5, and then obtains a 3.3V power supply from the 5V power supply through NCP5661 to be respectively supplied to other modules;
the dual-system switching board comprises an interlocking I system and an interlocking II system;
the master-slave conversion module comprises two groups of serial ports, a host and a slave, wherein one group of the two groups of serial ports is COM1 and COM2, the other group of the two groups of serial ports is COM3 and COM4, the two groups of serial ports are in bidirectional communication with the host and in unidirectional communication with the slave, namely the two groups of serial ports send state information of an interlock I system and an interlock II system to the slave;
the communication module comprises serial port communication and SPI communication, wherein COM1 and COM2 are communicated with an interlock I system, COM3 and COM4 are communicated with an interlock II system, the host is communicated with the slave SPI, and the SPI communication is used for realizing the synchronization of switching commands;
the switching module comprises a switching button and an optocoupler, the switching button is connected with the host and the slave through the optocoupler, when the voltage is detected to be reduced from 24V to 3.3V, a switching command is sent to the interlocking machine dual system by the host to realize manual switching of the interlocking machine dual system, in order to avoid misoperation, the number of the switching buttons is two, and switching is executed when the two buttons are pressed down;
the lighting module comprises an indicator lamp, an optocoupler and a relay, one end of the indicator lamp is connected with one end of a normally open contact of the relay in series, the other end of the indicator lamp is grounded, the other end of the normally open contact is connected with a power supply, the main machine and the slave machine excite a relay coil through the optocoupler, so that the normally open contact is closed and connected with the power supply to light the indicator lamp, wherein the indicator lamp comprises a power indicator lamp, an indicator lamp of which the I system or the II system is in a master control mode state, an indicator lamp of which the I system or the II system is in a hot standby mode state, and an indicator lamp of which the I system or the II system is in an off-line mode state, and the indicator lamp receives state data of the double;
the watchdog module is used for preventing the software from crashing.
Fifth, module work flow
The main and standby conversion module comprises two ARM, wherein ARM1 and ARM2 simultaneously receive data of four serial ports, analyze the data sent by COM1, COM2, COM3 and COM4, and output signals light corresponding indicator lamps. The two ARM simultaneously collect the states of the switching buttons, if the switching commands are collected, the switching commands are sent to the two interlocking systems by the host after the switching commands are compared and consistent through the two ARM, meanwhile, the current states are displayed by the panel indicator lamps, and the specific process is shown in fig. 5. S1, sending state information to the main/standby conversion module in an interlocking manner; s2, the main/standby conversion module receives the state information; s3, lighting a corresponding status indicator lamp; s4, the main-standby conversion module collects the state of the switching button; s5, the main-standby conversion module collects a switching command; s6, the main-standby conversion module sends a switching command to the dual-system switching board; s7, the dual system switching is successful; s8, sending current state information to the main/standby conversion module in an interlocking manner; and S9, lighting the corresponding status indicator lamp according to the new status.
Sixthly, the principle of failure safety adopted in the design of module hardware
1. Combined fail-safe principle:
the principle of combined failure safety is mainly embodied in that a main-standby switching command button is composed of two independent buttons, and the purpose of main-standby system switching can be achieved only when the two buttons are pressed simultaneously.
2. Checked-redundancy principle:
the redundancy principle is mainly embodied in that the modules all adopt a two-out-of-two logic design structure, for example, the main/standby conversion module comprises a CPU1 subunit and a CPU2 subunit, and the two subunits are independent of each other and independently complete respective functions.
3. Hardware design:
reliability;
the maturity;
simplification;
the independence between channels prevents common mode faults.
Seventh, the master-slave conversion module is characterized
The main/standby conversion module belongs to an auxiliary module in the interlocking control system, and mainly realizes the real-time monitoring of the state of the two interlocked systems and displays the current states of the two systems in a panel indicator light; and finishing acquiring the state of the switching button and sending a switching command.
The module has an interlocking two-system state switching function;
the module has the functions of state information acquisition and display.
The above embodiments are only for illustrating the invention, and the structure, connection mode and the like of the components can be changed, and all equivalent changes and improvements made on the basis of the technical scheme of the invention should not be excluded from the protection scope of the invention.
Claims (10)
1. An interlock dual-system switching system is characterized in that the system comprises a power module, a dual-system switching board, a main/standby switching module, a communication module, a switching module, a lighting module and a watchdog module, wherein,
the power supply module provides a DC24V power supply, an independent 5V power supply is obtained through a transformer, and then the 5V power supply obtains a 3.3V power supply through a voltage stabilizer and respectively supplies the power supply to other modules;
the dual-system switching board comprises an interlocking I system and an interlocking II system;
the master-slave conversion module comprises two groups of serial ports, a host and a slave, wherein one group of the two groups of serial ports is COM1 and COM2, the other group of the two groups of serial ports is COM3 and COM4, the two groups of serial ports are in bidirectional communication with the host and in unidirectional communication with the slave, namely the two groups of serial ports send state information of an interlock I system and an interlock II system to the slave;
the communication module comprises serial port communication and SPI communication, wherein COM1 and COM2 are communicated with an interlock I system, COM3 and COM4 are communicated with an interlock II system, the host is communicated with the slave SPI, and the SPI communication is used for realizing the synchronization of switching commands;
the switching module comprises a switching button and an optical coupler, the switching button is connected with the host and the slave through the optical coupler, and the host sends a switching command to the interlocking machine dual system to realize manual switching of the interlocking machine dual system;
the lighting module comprises an indicator light, an optical coupler and a relay, one end of the indicator light is connected with one end of a normally open contact of the relay in series, the other end of the indicator light is grounded, the other end of the normally open contact is connected with a power supply, the main machine and the slave machine excite a relay coil through the optical coupler, so that the normally open contact is closed to switch on the power supply to light the indicator light, wherein,
the indicating lamps comprise power indicating lamps, state indicating lamps when the I system or the II system is in a master control mode, state indicating lamps when the I system or the II system is in a hot standby mode, and state indicating lamps when the I system or the II system is in an off-line mode, and the indicating lamps receive state data of the interlocking machine dual system through the host and the slave so as to light the indicating lamps in corresponding states;
the watchdog module is used for preventing the software from crashing.
2. The interlocking machine dual-system switching system according to claim 1, wherein the serial port communication adopts RS422 bidirectional communication, and full-duplex operation transceiving is not affected.
3. The interlocker dual-train switching system as claimed in claim 1, wherein the number of the switching buttons is two, each of the switching buttons is connected to the master and the slave through an optical coupler, and the master sends a switching command to the two trains.
4. The interlocking machine dual-system switching system as claimed in claim 1, wherein the master and the slave both adopt an ARM-based microprocessor, and the dual CPUs are independent of each other and have a two-in-two redundant structure.
5. The interlocker dual system switching system of claim 1, wherein the indicator lights are on one panel, the indicator lights being three different colors.
6. The interlocker dual-train switching system of claim 5, wherein the lights are green in master mode, yellow in hot standby mode, and red in offline mode.
7. An interlocking machine dual system switching system control method for controlling the interlocking machine dual system switching system according to any one of claims 1 to 6,
s1, sending state information to the main/standby conversion module in an interlocking manner;
s2, the main/standby conversion module receives the state information;
s3, lighting a corresponding status indicator lamp;
s4, the main-standby conversion module collects the state of the switching button;
s5, the main-standby conversion module collects a switching command;
s6, the main-standby conversion module sends a switching command to the dual-system switching board;
s7, the dual system switching is successful;
s8, sending current state information to the main/standby conversion module in an interlocking manner;
and S9, lighting the corresponding status indicator lamp according to the new status.
8. The control method of the interlocking machine dual-system switching system as claimed in claim 7, wherein the two ARM simultaneously collect the state of the switching button, if the switching command is collected, the switching command is transmitted to the interlocking two systems by the host after the switching command is compared to be consistent through the dual ARM, and the panel indicator light displays the current state.
9. The control method of the interlocking machine dual-system switching system according to claim 8, wherein a combined fail-safe principle is adopted, that is, a switching button is composed of two independent buttons, and only when the two buttons are pressed simultaneously, the primary/secondary switching module receives a switching command, so that the purpose of interlocking machine dual-system switching can be achieved.
10. The control method of the interlocking machine dual-system switching system according to claim 8, wherein a redundancy principle is adopted, modules all adopt a two-out-of-two logic design structure, and the main/standby switching module comprises a CPU1 subunit and a CPU2 subunit, which are independent of each other and independently complete respective functions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911323129.5A CN110968021A (en) | 2019-12-20 | 2019-12-20 | Interlocking machine dual-system switching system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911323129.5A CN110968021A (en) | 2019-12-20 | 2019-12-20 | Interlocking machine dual-system switching system and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110968021A true CN110968021A (en) | 2020-04-07 |
Family
ID=70035433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911323129.5A Pending CN110968021A (en) | 2019-12-20 | 2019-12-20 | Interlocking machine dual-system switching system and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110968021A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111694269A (en) * | 2020-06-01 | 2020-09-22 | 哈尔滨市科佳通用机电股份有限公司 | Locomotive signal processing device |
| CN114003429A (en) * | 2021-12-30 | 2022-02-01 | 中国铁道科学研究院集团有限公司通信信号研究所 | Double-system state control method and system of safety demanding system based on 2oo2 x 2 |
| CN114935779A (en) * | 2022-06-14 | 2022-08-23 | 天津君秒安减灾科技有限公司 | Master-slave switching system for automatic connection between earthquake rescue field devices |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004058793A (en) * | 2002-07-26 | 2004-02-26 | Kyosan Electric Mfg Co Ltd | Electronic interlocking device |
| CN1775606A (en) * | 2005-12-19 | 2006-05-24 | 北京交通大学 | Wireless locomotive signal dual-engine warm standby control method |
| CN102951182A (en) * | 2012-10-18 | 2013-03-06 | 上海亨钧科技有限公司 | Working method of secure computer specially used for railways |
| CN104268037A (en) * | 2014-09-10 | 2015-01-07 | 上海自仪泰雷兹交通自动化系统有限公司 | Hot redundancy interlocking subsystem and main and standby switching method thereof |
| CN106549500A (en) * | 2016-12-08 | 2017-03-29 | 积成电子股份有限公司 | A kind of device of transformer station's telecontrol communication machine Two-channel switching and its method for automatic switchover |
| CN207020479U (en) * | 2017-06-20 | 2018-02-16 | 卡斯柯信号有限公司 | A kind of self-regulating machine redundancy switching system |
| CN108009056A (en) * | 2017-12-28 | 2018-05-08 | 合肥工大高科信息科技股份有限公司 | A kind of safety computer platform two-node cluster hot backup switching and fault detection system and method |
| CN207992714U (en) * | 2017-12-27 | 2018-10-19 | 卡斯柯信号有限公司 | Safety independence active-standby switch equipment |
| CN108749855A (en) * | 2018-04-10 | 2018-11-06 | 浙江众合科技股份有限公司 | All-electronin interlock system |
| CN109976208A (en) * | 2018-12-28 | 2019-07-05 | 上海亨钧科技股份有限公司 | A kind of interlocking I/O system and control method |
-
2019
- 2019-12-20 CN CN201911323129.5A patent/CN110968021A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004058793A (en) * | 2002-07-26 | 2004-02-26 | Kyosan Electric Mfg Co Ltd | Electronic interlocking device |
| CN1775606A (en) * | 2005-12-19 | 2006-05-24 | 北京交通大学 | Wireless locomotive signal dual-engine warm standby control method |
| CN102951182A (en) * | 2012-10-18 | 2013-03-06 | 上海亨钧科技有限公司 | Working method of secure computer specially used for railways |
| CN104268037A (en) * | 2014-09-10 | 2015-01-07 | 上海自仪泰雷兹交通自动化系统有限公司 | Hot redundancy interlocking subsystem and main and standby switching method thereof |
| CN106549500A (en) * | 2016-12-08 | 2017-03-29 | 积成电子股份有限公司 | A kind of device of transformer station's telecontrol communication machine Two-channel switching and its method for automatic switchover |
| CN207020479U (en) * | 2017-06-20 | 2018-02-16 | 卡斯柯信号有限公司 | A kind of self-regulating machine redundancy switching system |
| CN207992714U (en) * | 2017-12-27 | 2018-10-19 | 卡斯柯信号有限公司 | Safety independence active-standby switch equipment |
| CN108009056A (en) * | 2017-12-28 | 2018-05-08 | 合肥工大高科信息科技股份有限公司 | A kind of safety computer platform two-node cluster hot backup switching and fault detection system and method |
| CN108749855A (en) * | 2018-04-10 | 2018-11-06 | 浙江众合科技股份有限公司 | All-electronin interlock system |
| CN109976208A (en) * | 2018-12-28 | 2019-07-05 | 上海亨钧科技股份有限公司 | A kind of interlocking I/O system and control method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111694269A (en) * | 2020-06-01 | 2020-09-22 | 哈尔滨市科佳通用机电股份有限公司 | Locomotive signal processing device |
| CN114003429A (en) * | 2021-12-30 | 2022-02-01 | 中国铁道科学研究院集团有限公司通信信号研究所 | Double-system state control method and system of safety demanding system based on 2oo2 x 2 |
| CN114003429B (en) * | 2021-12-30 | 2022-03-29 | 中国铁道科学研究院集团有限公司通信信号研究所 | Double-system state control method and system of safety demanding system based on 2oo2 x 2 |
| CN114935779A (en) * | 2022-06-14 | 2022-08-23 | 天津君秒安减灾科技有限公司 | Master-slave switching system for automatic connection between earthquake rescue field devices |
| CN114935779B (en) * | 2022-06-14 | 2022-11-29 | 天津君秒安减灾科技有限公司 | Master-slave switching system for automatic connection between earthquake rescue field devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110968021A (en) | Interlocking machine dual-system switching system and control method | |
| CN110361979B (en) | Safety computer platform in railway signal field | |
| CN103149907B (en) | Hot-redundancy CAN (Controller Area Network)-bus high-fault-tolerance control terminal and method based on dual DSPs (Digital Signal Processors) | |
| CN103869781B (en) | A kind of non-similar triplex redundance machine on-board electrical Electrical Load Management Center | |
| CN103838230B (en) | The failure switching method of the digital rudder controller control system of a kind of extendible redundance and the number of axle | |
| US7783814B2 (en) | Safety module and automation system | |
| CN110376876B (en) | Double-system synchronous safety computer platform | |
| CN105187248A (en) | Redundancy switching system | |
| WO2019100916A1 (en) | Non-national-standard-system type turnout drive system based on double 2-vote-2 framework | |
| CN107942820B (en) | High-reliability analog quantity redundant output device and method | |
| CN102193543B (en) | Control system based on profibus redundant network topological structure and switching method of control system | |
| CN103647781A (en) | Mixed redundancy programmable control system based on equipment redundancy and network redundancy | |
| CN211391303U (en) | Interlocking machine dual-system switching equipment | |
| CN111186463A (en) | Board-level redundant full-electronic computer interlocking system | |
| CN105550077B (en) | A kind of Standby control system | |
| CN105529822A (en) | Redundancy control protection system | |
| KR102029735B1 (en) | High-speed railway track side function module dual automatic transfer system | |
| CN101741532B (en) | Two-computer switching device for redundant server switching | |
| CN112660158A (en) | Driving assistance control system | |
| US7013328B2 (en) | Electrical drive system with drive unit networks, intercommunication networks and multi-link-controller | |
| CN108628222B (en) | Radar servo dual-computer redundancy switching control system | |
| CN102991538A (en) | Device and method for automatically switching point-to-point communication | |
| CN102402212B (en) | For method and the network of operational network | |
| CN109976208A (en) | A kind of interlocking I/O system and control method | |
| CN111294265A (en) | DCS (distributed control system) double-path non-switching same-duplex modbus communication system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200407 |
|
| RJ01 | Rejection of invention patent application after publication |