CN205876025U - Full redundant control's platform door controller - Google Patents
Full redundant control's platform door controller Download PDFInfo
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- CN205876025U CN205876025U CN201521021306.1U CN201521021306U CN205876025U CN 205876025 U CN205876025 U CN 205876025U CN 201521021306 U CN201521021306 U CN 201521021306U CN 205876025 U CN205876025 U CN 205876025U
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- control unit
- cpu
- door
- signal
- relay
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- 238000012545 processing Methods 0.000 claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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- Train Traffic Observation, Control, And Security (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
The utility model provides a full redundant control's platform door controller, include: interconnect's first, the 2nd the control unit, when the control unit output open, when closing the signal, the 2nd the control unit monitors a control unit's signal processing module, output, when a control unit's signal processing module or output appearance were unusual, the 2nd the control unit replaced a control unit, sends out, closes signal and alarm signal, when the 2nd the control unit output open, when closing the signal, a control unit monitors the 2nd the control unit's signal processing module, output. The utility model discloses a control unit and the 2nd the control unit detect output point interface state each other to control CPU's running state realizes with this that entire system detects, avoids single electron device to damage the influence to whole shielding door control system, timely switching control unit after detecting the trouble improves reliability of an item greatly simultaneously, ensures the normal work of shield door.
Description
Technical Field
The utility model relates to a shield door automatic control field especially relates to a platform door controller of full redundant control.
Background
The screen door is also called a Platform screen door or a safety door (Platform screen doors or Platform-edge doors), is installed at the edge of a station Platform along the urban rail transit, isolates a station waiting area from a rail driving area, corresponds to a train door, and is an electromechanical equipment system. The shielding door is used for isolating passengers from the track and the train, so that the operation safety factor is improved, the platform environment for passengers to wait is improved, and the operation cost and the construction cost are saved. The opening and closing of the screen door is generally performed in cooperation with the movement of a train door when a train arrives at a station, so that a passage for passengers to get on and off the train is provided. Therefore, the normal operation of the screen door is very important for the rail traffic.
The DCU (Door Control Unit, Unit Door controller, which controls only one Door) is an electrical Control device for a screen Door or a security Door, and is responsible for opening or closing the sliding Door, and each side platform has 24 doors, and each Door is controlled by one DCU.
The PEDC (Platform Electrical Door Controller) includes two CPU units, which are called as a main CPU unit and a redundant CPU unit, respectively, hardware circuits included in the two units are completely identical, and each unit is composed of a CPU, a protection module, an I/O module, and a relay. The PEDC sends an opening and closing command to 24 DCUs, and simultaneously receives door closing and locking signals and door opening signals transmitted by the DCUs, and the four signals are connected with a main CPU unit and a redundant CPU unit of the PEDC. And the PEDC gives a group of dry contacts (the action of a relay at the moment) to each DCU to trigger an opening and closing signal.
At present, all manufacturers adopt communication redundancy, that is, a main CPU unit and a redundant CPU unit in the PEDC are connected in an ethernet transmission manner, and a CPU in the redundant CPU unit judges whether a CPU in the main CPU unit has a fault through software, so as to ensure that the main CPU unit normally operates. If the CPU in the redundant CPU unit monitors that the CPU in the main CPU unit works normally, no measure is taken; and if the CPU in the redundant CPU unit monitors that the CPU in the main CPU unit is abnormal, the CPU in the redundant CPU unit sends out an alarm signal to inform a worker of timely maintenance. However, the electronic devices have a certain service life, and the service lives of different electronic devices under the same working environment are also different, if the CPU in the main CPU unit of the PEDC normally operates and only one of the subsequent electronic devices (including an optocoupler, a relay or a logic device) is damaged, the DCU cannot receive the door opening and closing instruction sent by the PEDC, so that the shield door cannot make a corresponding action, and the redundant CPU unit monitors that the CPU in the main CPU unit normally operates and cannot send an alarm, so that the shield door is always in an open state or a closed state, and the normal operation of the shield door is seriously affected.
Therefore, how to detect the occurrence of an abnormality when any electronic device in the main CPU unit fails and actively switch to the redundant CPU unit to ensure the normal operation of the shield gate has become one of the problems to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model aims to provide a platform door controller of full redundant control for solve among the prior art PEDC's redundant CPU unit all electronic components in the main CPU unit of unable comprehensive monitoring, cause the unable normal work scheduling problem of shield door.
To achieve the above and other related objects, the present invention provides a fully redundant control platform door controller, which at least comprises:
a first control unit and a second control unit; wherein,
the first control unit is connected with the second control unit, when the first control unit outputs opening and closing signals of the shield door, the second control unit monitors a signal processing module and an output end of the first control unit, and when the signal processing module or the output end of the first control unit is abnormal, the second control unit replaces the first control unit, sends the opening and closing signals of the shield door and sends an alarm signal; when the second control unit outputs the opening and closing signals of the shielding door, the first control unit monitors the signal processing module and the output end of the second control unit.
Preferably, the first control unit and the second control unit are connected with a unit door controller, the unit door controller is installed on each screen door and is responsible for opening or closing the screen door, and one screen door is controlled by one unit door controller; meanwhile, after the shielding door is opened or closed, the unit door controller feeds back a state signal of the shielding door to the first control unit and the second control unit.
More preferably, the signal processing module of the first control unit is a first CPU, the output end is a first relay, the signal processing module of the second control unit is a second CPU, and the output end is a second relay;
the first CPU is connected with the first relay, the second CPU and the second relay, when the first CPU sends a switching command, the first relay is triggered, and the first relay sends a driving signal to control a shielding door on a platform to be opened or closed;
the second CPU is connected with the second relay, the first CPU and the first relay, monitors the first CPU and the first relay, when the first CPU or the first relay is abnormal, the second CPU sends an alarm signal, the second CPU sends a switch command, the second CPU triggers the second relay to send a driving signal, a shielding door on a platform is controlled to be opened or closed, and at the moment, the first CPU monitors the second CPU and the second relay.
More preferably, the first CPU and the second CPU are connected via an ethernet to realize mutual monitoring.
More preferably, the first control unit further includes a first protection module and a first I/O module, and the second control unit further includes a second protection module and a second I/O module.
As described above, the utility model discloses a platform door controller of full redundant control has following beneficial effect:
the utility model discloses a platform door controller of full redundant control detects output point interface state each other through first control unit and second control unit to monitor CPU's running state, realize that whole system detects with this, avoid single electron device to damage the influence to whole shielding door control system; meanwhile, the control unit is switched in time after a fault is detected, so that the reliability of a product is greatly improved, and the normal work of the shielding door is ensured.
Drawings
Fig. 1 is a schematic diagram illustrating the operation principle of the fully-redundant platform door controller according to the present invention.
Description of the element reference numerals
11 platform door controller
111 first control unit
1111 first CPU
1112 first Relay
112 second control unit
1121 second CPU
1122 second relay
12 unit door controller
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
Please refer to fig. 1. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
As shown in fig. 1, the present invention provides a platform door controller with full redundancy control, the platform door controller 11 at least includes: a first control unit 111 and a second control unit 112, and a unit door controller 12.
The first control unit 111 is connected to the second control unit 112, when the first control unit 111 outputs an opening/closing signal of the shield door, the second control unit 112 monitors the signal processing module and the output terminal of the first control unit 111, and when the signal processing module or the output terminal of the first control unit 111 is abnormal, the second control unit 112 replaces the first control unit 112 to send the opening/closing signal of the shield door and send an alarm signal; when the second control unit 112 outputs the opening and closing signals of the shield door, the first control unit 111 monitors the signal processing module and the output end of the second control unit 112.
As shown in fig. 1, in the present embodiment, the first control unit 111 includes a first CPU1111 (as a signal processing module of the first control unit 111), a first relay 1112 (at an output end of the first control unit 111), a first protection module (not shown), and a first I/O module (not shown). The first control unit 111 is connected to the first relay 1112, the second CPU, and the second relay 1122. When the first control unit 111 is used to control the opening and closing of the screen door, the first CPU1111 issues a switch command and triggers the first relay 1112, the first relay 1112 issues a driving signal, and the unit door controller 12 performs an operation of opening or closing the screen door on the platform under the control of the driving signal; when the first control unit 111 is used for monitoring the second control unit 112, the first CPU1111 monitors the second CPU1121 of the second control unit 112, and acquires an output signal of the second relay 1122 of the second control unit 112, and when the second CPU1121 is not operated normally, or the second control unit 112 does not output a corresponding driving signal after the second CPU1121 issues a switching command, the first control unit 111 is switched to, the first control unit 111 controls the opening and closing of the shield door, and the first CPU1111 issues an alarm signal.
As shown in fig. 1, in the present embodiment, the second control unit 112 includes a second CPU1121 (which is a signal processing module of the second control unit 112), a second relay 1122 (which is located at an output end of the second control unit 112), a second protection module (not shown), and a second I/O module (not shown). The second control unit 112 is connected to the second relay 1122, the first CPU, and the first relay 1112. When the second control unit 112 is used for monitoring the first control unit 111, the second CPU1121 monitors the first CPU1111 and acquires an output signal of the first relay 1112, and when the first CPU1111 is not operated normally or the first control unit 111 does not output a corresponding driving signal after the first CPU1111 sends a switching command, the second CPU1121 sends an alarm signal to inform a worker of performing troubleshooting in time, and a unit that sends an opening and closing signal of the shield door is switched to the second control unit 112; at this time, when the second control unit 112 is used to control the opening and closing of the shield door, the second CPU1121 issues a switch command and triggers the second relay 1122, the second relay 1122 issues a driving signal, and the unit door controller 12 performs an operation of opening or closing the shield door on the platform under the control of the driving signal.
Specifically, in this embodiment, the first CPU1111 and the second CPU1121 realize mutual monitoring through ethernet connection, so as to perform mutual backup operation of the first control unit 111 and the second control unit 112, thereby ensuring that the shield door normally operates.
As shown in fig. 1, the unit door controller 12 is connected to the first control unit 111 and the second control unit 112, and controls the opening or closing of the screen door according to the output signal of the platform door controller 11, and simultaneously feeds back the status signal of the screen door to the platform door controller 11 after the screen door is opened or closed. The unit door controllers 12 are installed on the screen doors, one screen door is controlled by one unit door controller 12, and the unit door controllers 12 on the same side screen door are controlled by the same control signal output by the platform door controller 11, so that the screen doors on the same side are opened or closed synchronously.
As described above, the utility model discloses a platform door controller of full redundant control has following beneficial effect:
the utility model discloses a platform door controller of full redundant control detects output point interface state each other through first control unit and second control unit to monitor CPU's running state, realize that whole system detects with this, avoid single electron device to damage the influence to whole shielding door control system; meanwhile, the control unit is switched in time after a fault is detected, so that the reliability of a product is greatly improved, and the normal work of the shielding door is ensured.
To sum up, the utility model provides a platform door controller of full redundant control, the platform door controller includes at least: a first control unit and a second control unit; the first control unit is connected with the second control unit, when the first control unit outputs opening and closing signals of the shielding door, the second control unit monitors a signal processing module and an output end of the first control unit, and when the signal processing module or the output end of the first control unit is abnormal, the second control unit replaces the first control unit to send the opening and closing signals of the shielding door and send an alarm signal; when the second control unit outputs the opening and closing signals of the shielding door, the first control unit monitors the signal processing module and the output end of the second control unit. The utility model discloses a platform door controller of full redundant control detects output point interface state each other through first control unit and second control unit to monitor CPU's running state, realize that whole system detects with this, avoid single electron device to damage the influence to whole shielding door control system; meanwhile, the control unit is switched in time after a fault is detected, so that the reliability of a product is greatly improved, and the normal work of the shielding door is ensured. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (4)
1. A fully redundant platform door controller, comprising:
a first control unit and a second control unit; wherein,
the signal processing module of the first control unit is a first CPU, the output end of the first control unit is a first relay, the signal processing module of the second control unit is a second CPU, and the output end of the second control unit is a second relay;
the first CPU is connected with the first relay, the second CPU and the second relay;
the second CPU is connected with the second relay, the first CPU and the first relay.
2. The fully redundant controlled station door controller of claim 1, further comprising: the first control unit and the second control unit are connected with a unit door controller, and the unit door controllers are installed on the shielding doors.
3. The fully redundant controlled station door controller of claim 1, further comprising: and the first CPU and the second CPU are connected through Ethernet to realize mutual monitoring.
4. The fully redundant controlled station door controller of claim 1, further comprising: the first control unit further comprises a first protection module and a first I/O module, and the second control unit further comprises a second protection module and a second I/O module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521021306.1U CN205876025U (en) | 2015-12-09 | 2015-12-09 | Full redundant control's platform door controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521021306.1U CN205876025U (en) | 2015-12-09 | 2015-12-09 | Full redundant control's platform door controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205876025U true CN205876025U (en) | 2017-01-11 |
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ID=57686378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521021306.1U Expired - Fee Related CN205876025U (en) | 2015-12-09 | 2015-12-09 | Full redundant control's platform door controller |
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| Country | Link |
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| CN (1) | CN205876025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019100227A1 (en) * | 2017-11-22 | 2019-05-31 | 贵州智慧能源科技有限公司 | Control system and protection device |
-
2015
- 2015-12-09 CN CN201521021306.1U patent/CN205876025U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019100227A1 (en) * | 2017-11-22 | 2019-05-31 | 贵州智慧能源科技有限公司 | Control system and protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20181209 |