CN211086945U

CN211086945U - Redundant electric device for controlling shielding door switch

Info

Publication number: CN211086945U
Application number: CN201922136993.6U
Authority: CN
Inventors: 秦振肖
Original assignee: Westinghouse Platform Screen Doors Guangzhou Co ltd
Current assignee: Westinghouse Platform Screen Doors Guangzhou Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-07-24
Anticipated expiration: 2029-12-03

Abstract

The utility model provides a redundant electric device of control shield door switch, includes PEDC controller, voltage transmitter, first control module, second control module, central controller and shield door module, the input of PEDC controller is used for receiving shield door switching signal, and the output of PEDC controller is connected with voltage transmitter, second control module respectively, and the output of second control module is connected with shield door module, and the input of central controller is connected with voltage transmitter's output to and be used for receiving shield door switching signal, and the output of central controller is connected with shield door module, second control module, first control module respectively, and shield door module still conveys to central controller and closes locking signal.

Description

Redundant electric device for controlling shielding door switch

Technical Field

The utility model belongs to the technical field of rail transit's shield door and specifically relates to a redundant electric device of control shield door switch.

Background

The subway shield door is directly controlled to be opened and closed by a signal system through a shield door core controller (PEDC) in a normal operation mode, all shield door bodies cannot normally act when the PEDC fails, and the shield door is opened or closed by station staff or a train driver through a manual operation shield door local operation panel.

The prior art has the following defects: 1. and (4) non-intelligent. When a platform shielding door control system has a fault, manual operation of opening and closing of a shielding door is needed, and the shielding door cannot be opened and closed in time easily, so that train delay and delay are caused. 2. Unsafe and inconvenient maintenance. When a platform screen door control system (PEDC) fails, the failure of the PEDC cannot be replaced online, and the replacement of the PEDC online with a new one risks causing the failure of other screen doors, including the risk of causing a train to stop outside the station. 3. Because the subway requires that the door opening command level of the signal is one level lower than that of the local control box, the door opening and closing command of the signal needs to pass through the local control box, and once the local control box fails, the door opening and closing command of the signal fails.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the present invention provides a redundant electrical device for controlling a shutter switch.

In order to solve the technical problem, the utility model discloses take following technical scheme:

a redundant electric device for controlling a shielding door switch comprises a PEDC controller, a voltage transmitter, a first control module, a second control module, a central controller and a shielding door module;

the input end of the PEDC controller is used for receiving a shielding door switch signal, the output end of the PEDC controller is respectively connected with the voltage transmitter and the second control module, and the output end of the second control module is connected with the shielding door module;

the input end of the central controller is connected with the output end of the voltage transmitter and is used for receiving a shielding door switching signal, the output end of the central controller is respectively connected with the shielding door module, the second control module and the first control module, and the shielding door module also transmits a closing locking signal to the central controller.

The central controller is a P L C controller or a singlechip.

First control module includes normally open switch K1, K2 and K3, and normally open switch K1 is connected the output signal of opening the door with the shield door module, and normally open switch K2 and K3 are connected the output enable signal with the shield door module.

The second control module comprises normally closed switches K4, K5 and K6, wherein the normally closed switch K4 is connected with the shielding door module to output a door opening signal, and the normally closed switches K5 and K6 are connected with the shielding door to output an enabling signal.

And the central controller is also connected with a PEDC controller fault alarm indicator lamp and a fault buzzer.

The utility model discloses utilize the central controller drive, PEDC controller control when replacing the trouble shields the door action, and on-the-spot manual operation's trouble when having avoided the trouble of PEDC controller has practiced thrift the time, has guaranteed the punctual rate of train operation, ensures that the train operation does not take place to delay.

Drawings

FIG. 1 is a schematic view of the connection principle of the present invention;

fig. 2 is a schematic circuit connection diagram of a first control module according to the present invention;

fig. 3 is a schematic circuit connection diagram of a second control module of the present invention;

FIG. 4 is a schematic structural diagram of a central controller according to the present invention;

fig. 5 is a schematic view of the usage flow of the present invention.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1-5, the present invention discloses a redundant electrical device for controlling a shutter switch, which comprises a PEDC controller, a voltage transmitter, a first control module, a second control module, a central controller and a shutter module.

The input end of the PEDC controller is used for receiving a shielding door switch signal, the output end of the PEDC controller is respectively connected with the voltage transmitter and the second control module, and the output end of the second control module is connected with the shielding door module.

The central controller is a P L C controller or a singlechip, preferably a P L C controller, and replaces a PEDC controller in fault to control the opening and closing of the shielding door through the P L C controller, so that the trouble of field manual operation in the fault of the PEDC controller is avoided, the time is saved, the operating correct point rate of the train is ensured, and the running of the train is ensured not to be delayed.

The first control module comprises normally open switches K1, K2 and K3, wherein the normally open switch K1 is connected with the shielding door module to output a door opening signal, the normally open switches K2 and K3 are connected with the shielding door module to output an enabling signal, and the normally open switches K1, K2 and K3 are usually connected with a direct-current 50V power supply. The normally open switches K1, K2 and K3 are kept in an open state when not receiving corresponding control commands, and are closed after receiving related signals, so that corresponding commands are sent to the shielded door module, and corresponding operation is realized.

When the PEDC controller breaks down, the corresponding switch is opened, and the instruction cannot be sent to the shielding door module, so that the P L C controller is used for controlling instead, and manual operation is not needed.

And the P L C controller is also connected with a PEDC controller fault alarm indicator lamp and a fault buzzer.

For the P L C controller, the analog channel CH1 and the module channel CH2 are connected with the voltage transmitter, the voltage transmitter is provided with a corresponding door opening signal end, a common end and an enabling signal end, and the voltage transmitter is provided with a door opening signal end, a closing signal end, a shielding door closing locking end, an emergency reset button and the like.

The P L C controller, the PEDC controller or the single chip microcomputer are all known products, and any specific model is not required to be limited as long as the existing products with corresponding functions can be realized.

The function of the voltage transmitter is to convert a door opening and closing signal of the PEDC controller into a voltage of 0-10V and then send the voltage to the P L C controller, the function of the P L C controller is to receive a signal detected by the voltage transmitter, the function of the first control module is to send a door opening and closing signal of a shield door, and the function of the second control module is to cut off the failed PEDC controller.

As shown in fig. 5, in a specific application, a voltage transmitter detects an enable signal and an open/close signal of a signal system in real time, when a door opening/closing command of the signal system is detected, the device is started immediately, meanwhile, the voltage transmitter changes a voltage signal of a PEDC controller of the shield door into a voltage of 0-10V and sends the voltage signal to a P L C controller, the enable signal and the door opening signal of the PEDC controller are not detected within a period of time, it is determined that the PEDC controller fails, a first control module is started through the P L C controller to send the enable and door opening commands, so that the shield door module executes corresponding actions, and a door opening circuit of the failed PEDC controller is cut off through a second control module.

It should be noted that the above is only a preferred embodiment of the present invention, and the present invention is not limited to the above, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced with equivalents, but any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A redundant electric device for controlling a shielding door switch is characterized by comprising a PEDC controller, a voltage transmitter, a first control module, a second control module, a central controller and a shielding door module;

2. The redundant electrical apparatus for controlling a shield door switch of claim 1, wherein the central controller is a P L C controller or a single chip microcomputer.

3. The redundant electrical device for controlling a shutter switch according to claim 2, wherein the first control module comprises normally open switches K1, K2 and K3, the normally open switch K1 is connected to the shielded door module to output a door opening signal, and the normally open switches K2 and K3 are connected to the shielded door module to output an enable signal.

4. The redundant electrical device for controlling a shield door switch according to claim 3, wherein the second control module comprises normally closed switches K4, K5 and K6, the normally closed switch K4 is connected with the shield door module to output a door opening signal, and the normally closed switches K5 and K6 are connected with the shield door to output an enable signal.

5. The redundant electrical apparatus for controlling a shield-door switch according to claim 4, wherein a PEDC controller malfunction alarm indicator lamp and a malfunction buzzer are further connected to the P L C controller.