Safety reminding device based on mode switch of platform door system

Abstract

The utility model provides a safety reminding device based on a platform door system mode switch, which comprises an original switch module and an additional module, the original switch module comprises a local control box LCB and a door controller unit DCU, and the local control box LCB comprises contacts JP5-8, JP5-12, JP5-7, JP5-10 and JP5-6; according to the utility model, the operation position voice alarm module is utilized to carry out corresponding voice broadcast when the mode switch operation position of the platform door system is switched, so that a platform worker can obtain information feedback in time, and meanwhile, safety accidents caused by misoperation of the worker or potential safety hazards found after a train is departed can be effectively avoided; the safety circuit cut-off module on the mode switch can be operated immediately to stop the train, so that subsequent processing operation can be executed quickly at the first time, the potential safety accident of the platform door is effectively eradicated, the fault rate of the platform door is reduced, the personal safety of passengers is practically guaranteed, time delay caused by faults can be effectively shortened, and related equipment and facilities can be recovered as soon as possible.

Description

Technical Field

[0001] The utility model relates to a safety reminder device, in particular to a safety reminder device based on a platform door system mode switch, belonging to the technical field of urban rail transit. Background Art

[0002] The platform door system is a highly comprehensive profession, and the various subsystems cooperate and restrict each other. For example, the monitoring module, central interface panel PSC, door control unit DCU and mode switch of the platform door control system are connected to each other, thus realizing the opening and closing function and status display of the sliding door. The principle is as follows: Figure 2 shown.

[0003] In non-automatic operation mode, when a train departs, the driver must first check the light strip at the end of the platform to see if there are any obstacles between the platform door and the train that may affect departure. At the same time, the driver must check the "OK" signal from the platform staff to see if the platform is normal and the train can depart. Secondly, the signal system must receive the "closed and locked" signal from the platform door system before the train can depart.

[0004] However, in unmanned driving mode, the system's switch still has the following problems:

[0005] 1. Due to the lack of the driver's observation of the light strip at the end of the platform, that is, the lack of the first layer of safety confirmation line of defense, the signal system only needs to receive the "closed and locked" signal fed back by the platform door system to start the train. When the platform door system fails or people or objects are caught, the staff will operate the "close door" or "open door" of a single sliding door mode switch to ensure the normal entry and exit of the train. The signal of the door safety circuit is "short-circuited", that is, Figure 2 The S8 of the platform door is short-circuited, and the safety circuit signal of the entire side is instantly connected. The signal system receives the "closed and locked" signal fed back by the platform door system, and the train is ready to depart, which is very likely to cause a safety accident.

[0006] 2. During normal operation of the line, once an emergency such as someone getting caught or something getting stuck occurs, the staff or passengers must first operate the train emergency stop button on the platform, or operate the mode switch to the "isolation" position when the faulty door is not closed and locked, in order to cut off the "closed and locked" signal for the train to enter and exit the station, and avoid safety accidents caused by the staff operating the mode switch to the "close door" or "open door" position, which allows the train to enter and exit the station normally. However, the distance traveled by the staff when operating the platform emergency stop button takes a certain amount of time, which is enough to cause an accident within this extremely short time frame, and may even cause panic among passengers waiting on the platform, causing adverse effects;

[0007] 3. When the train is in normal operation, if the platform door system fails, the staff will operate the existing mode switch of a single sliding door to the "close door" or "open door" position, which will short-circuit the safety circuit of this door, or when the faulty door body is closed and locked, the operation mode switch is operated to the "isolation" position, the safety circuit of the entire side is connected, and the train has the prerequisites for entering and leaving the station. In particular, in the event of an emergency on a fully automatic line, due to improper operation of the mode switch by the staff, it is very likely to cause a major safety accident.

[0008] Therefore, a safety reminder device based on the platform door system mode switch is proposed. Utility Model Content

[0009] In view of this, the utility model provides a safety reminder device based on a platform door system mode switch to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0010] The technical solution of the embodiment of the utility model is implemented as follows: a safety reminder device based on a platform door system mode switch includes an original switch module and an additional module, the original switch module includes a local control box LCB and a door controller unit DCU, the local control box LCB includes contacts JP5-8, JP5-12, JP5-7, JP5-10 and JP5-6, and the additional module includes an operating position voice alarm module, a safety circuit cut-off module and a mute module;

[0011] The operation position voice alarm module is used to add a voice alarm prompt function on the basis of the original switch module;

[0012] The safety circuit cut-off module is used to cut off the signal of the safety circuit when stopping the running train;

[0013] Among them, the silencing module is used to silence the operating position voice alarm module when the platform door system is being repaired.

[0014] Further preferably, the operation position voice alarm module is a buzzer, and the input ports I01, I02 and I03 of the buzzer are respectively connected to relay K1, relay K2 and relay K3, and the pin 13 input ends of the relay K1, relay K2 and relay K3 are connected in parallel and connected to JP1-10.

[0015] Further preferably, the input end of pin No. 14 of the relay K1 is connected to JP5-8, the input end of pin No. 14 of the relay K2 is connected to JP5-12, and the input end of pin No. 14 of the relay K3 is connected to JP5-7.

[0016] Further preferably, the mute module is a mute button S2, the output ends of the relay K1, the relay K2 and the relay K3 are all connected to the mute button S2, and the mute button S2 is connected to a buzzer.

[0017] Further preferably, the safety circuit cut-off module is a safety circuit cut-off button S1, the input end of the safety circuit cut-off button S1 is connected to JP5-7 and JP5-6, and the output end of the safety circuit cut-off button S1 is connected to the X1-14 and 955 ports of the door controller unit DCU.

[0018] Further preferably, the electrical input end of the buzzer is connected to a step-down module, and the step-down module is used to convert alternating current into DC5V to power the buzzer.

[0019] Further preferably, the original switch module is a key-type mode conversion switch, including: an isolation operation position, an automatic operation position, a door opening operation position and a door closing operation position.

[0020] Further preferably, the voice prompts of the operation position voice alarm module include: isolation operation position prompt voice, door opening operation position prompt voice and door closing operation position prompt voice.

[0021] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0022] 1. Safety: The utility model utilizes a safety circuit cut-off module to enable platform staff to operate the mode switch in time according to platform information. Even if a safety hazard is found after the train departs, the safety circuit cut-off module on the mode switch can be immediately operated to stop the train.

[0023] 2. Service quality: The utility model uses the operating position voice alarm module to make corresponding voice broadcasts when the operating position of the platform door system mode switch is switched, so that platform staff can obtain information feedback in time. At the same time, it can effectively avoid the occurrence of safety accidents caused by staff misoperation or discover safety hazards after the train departs. The safety circuit cut-off module on the operating mode switch can be operated immediately to stop the train so that subsequent processing operations can be carried out quickly at the first time, effectively eliminating the hidden dangers of platform door safety accidents, reducing the failure rate of platform doors, and effectively protecting the personal safety of passengers. It can also effectively shorten the time delay caused by the failure and restore related equipment and facilities as soon as possible.

[0024] 3. Controllability: The utility model utilizes a silencing module to silence the voice alarm module at the operating position when the platform door system is being repaired, so that the voice alarm module at the operating position does not make a sound when the operating mode switch is being operated, thereby facilitating the work of maintenance personnel.

[0025] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is the circuit schematic diagram of the mode switch after the utility model is equipped with an operating position voice alarm module, a safety circuit cut-off module and a mute module;

[0028] Figure 2 This is a schematic diagram of the platform door mode switch circuit in the prior art of the utility model. DETAILED DESCRIPTION

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] It should be noted that the terms "first", "second", "symmetrical", "array", etc. are only used to distinguish between description and position description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the definition of "first", "symmetrical", etc. can explicitly or implicitly include one or more of these features; similarly, when the number of certain features is not limited in the form of words such as "two" or "three", it should be noted that this feature also explicitly or implicitly includes one or more feature quantities.

[0031] In the prior art, under normal circumstances, the mode switch of the platform door system on the entire side is in the "automatic" position, that is, S4 is normally closed, and the platform door is controlled by the system level to receive the "open door command" or "close door command" to implement the switch operation of the door body. The specific relationship is shown in the following table: The on-off relationship between the mode switch and the safety circuit. When the platform door fails or the mode switch of a single door needs to be operated for maintenance, when it is turned to the "close door" position, S1 is closed, the door body is closed, and S8 is closed at the same time, and the safety interlock circuit of the unit door exits the safety circuit of the entire side. When it is turned to the "open door" position, S2 is closed, the door body is opened, and S5 is closed at the same time, and the safety interlock circuit of the unit door exits the safety circuit of the entire side.

[0032]

[0033] The above technology has the following problems: when the platform door system fails or people or objects are caught, the staff will operate the "close door" or "open door" of a single sliding door mode switch to ensure the normal entry and exit of the train. The signal of the door safety circuit is "short-circuited", that is, Figure 2 S8 is short-circuited, the safety circuit signal of the entire side is instantly connected, the signal system receives the "closed and locked" signal fed back by the platform door system, and the train is ready to depart, which is very likely to cause a safety accident; the distance traveled by the staff when operating the platform emergency stop button takes a certain amount of time, which is enough to cause an accident in this extremely short time range, and may even cause panic among passengers waiting on the platform, causing adverse effects; in an emergency on a fully automatic line, due to improper operation of the mode switch by the staff, it is very likely to cause major safety accidents and other problems; for this reason, please refer to Figure 1 ,The utility model provides a safety reminder device based on the platform door system mode switch;

[0034] The device includes an original switch module and an additional module. The original switch module includes a local control box LCB and a door controller unit DCU. The local control box LCB includes contacts JP5-8, JP5-12, JP5-7, JP5-10 and JP5-6. The additional module includes an operating position voice alarm module, a safety circuit cut-off module and a mute module.

[0035] Among them, the operation position voice alarm module is used to add a voice alarm prompt function based on the original switch module;

[0036] The voice prompts of the operation position voice alarm module include: isolation operation position prompt voice, door opening operation position prompt voice and door closing operation position prompt voice;

[0037] Among them, the safety circuit cut-off module is used to cut off the signal of the safety circuit when stopping the running train;

[0038] Among them, the silencing module is used to silence the operating position voice alarm module when the platform door system is being repaired.

[0039] In one embodiment, the operation position voice alarm module is a buzzer, and the input ports I01, I02 and I03 of the buzzer are respectively connected to relay K1, relay K2 and relay K3, the No. 13 pin input ends of relay K1, relay K2 and relay K3 are connected in parallel and connected to JP1-10, the No. 14 pin input end of relay K1 is connected to JP5-8, the No. 14 pin input end of relay K2 is connected to JP5-12, and the No. 14 pin input end of relay K3 is connected to JP5-7;

[0040] By adding the operation of "isolation", "door closing" and "door opening" on the mode switch, a voice alarm function is provided.

[0041] The existing mode switch is equipped with a voice alarm prompt function, that is, the "isolation", "door closing" and "door opening" positions of a single sliding door mode switch are operated, and the voice alarm module in the operating position broadcasts safety prompt audio, etc. For example, "Staff, please note that the train can be ready to depart at any time...", and the sliding door realizes the corresponding door opening and closing state. If the mode switch is operated to the "door closing", "door opening" position or the "isolation" position when the sliding door is "closed and locked", the safety circuit of this door is connected, the safety circuit of the entire side is connected, and the train can depart at any time. The specific details are as follows Figure 1 Shown as dotted line.

[0042] In one embodiment, the mute module is a mute button S2, the output ends of the relays K1, K2 and K3 are all connected to the mute button S2, and the mute button S2 is connected to a buzzer;

[0043] By adding a mute button to the mode switch to ensure that the voice alarm module functions normally, a mute button S2 is added to the mode switch so that when the platform door system is under normal maintenance, the mute button can be manually pressed. After the "isolation", "door closing" and "door opening" of the mode switch are operated, the voice alarm device will not sound, which is convenient for maintenance personnel. After the platform door system is overhauled, the mute button is reset to ensure the reliability of the voice alarm module performance when the platform door system is operating normally.

[0044] In one embodiment, the safety circuit cut-off module is a safety circuit cut-off button S1, the input end of the safety circuit cut-off button S1 is connected to JP5-7 and JP5-6, and the output end of the safety circuit cut-off button S1 is connected to the X1-14 and 955 ports of the door controller unit DCU;

[0045] By adding a safety circuit cut-off button to the mode switch, the "closed and locked" signal of the safety circuit is a necessary condition for the train to enter and exit the station. After the mode switch is operated, the voice alarm module in the operating position broadcasts the safety prompt audio, the safety circuit is connected, and the train has departed. At this time, if the platform staff finds that there are safety hazards on the platform and needs to stop the running train, they only need to operate the safety circuit cut-off button S1 on the mode switch to disconnect the "closed and locked" signal of the safety circuit and stop the train.

[0046] In one embodiment, the electrical input end of the buzzer is connected to a step-down module, which is used to convert AC power into DC5V to power the buzzer;

[0047] The step-down module is used to convert the AC power into 5V DC power to power the buzzer.

[0048] In one embodiment, the original switch module is a key-type mode conversion switch, including: an isolation operation position, an automatic operation position, a door opening operation position, and a door closing operation position.

[0049] In one embodiment, the mode switch and safety reminder device with optimized structure are installed in the fixed side box of the half-height platform door in the platform door prototype room of the vehicle depot. When the "isolation", "door closing" and "door opening" positions of the sliding door mode switch are operated, there are corresponding voice prompts, and the number of tests for a single door body reaches thousands of times, which verifies its performance reliability.

[0050] The team members conducted thousands of tests on the voice prompts and safety circuit cut-off button functions of the optimized mode switch in the door machine room of the sample platform of the depot. After operating the mode switch to the "isolation", "door closing" and "door opening" positions, the voice system can prompt "Staff, please note that the train can be ready to depart at any time." According to the test results, the performance of this device is stable, safe and reliable, and meets the expected requirements of the project;

[0051] After comprehensively considering the safety of platform door equipment and other factors, this device starts with the local control system of the platform door equipment, optimizes and transforms the original mode switch of the platform door, adds a voice alarm device and a safety circuit cut-off function module, and can realize the audibility of the mode switch operation during the local control of the platform door system, thereby reducing the failure rate of the platform door, laying a solid foundation for the zero-fault operation of electromechanical equipment, and further ensuring the safe and stable operation of the platform door equipment on the entire line. The implementation of this project will have certain guiding significance for the optimization design of the local control system of the platform door equipment on the fully automatic operation line in the future.

[0052] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A safety reminder device based on a platform door system mode switch, comprising an original switch module and an additional module, wherein the original switch module comprises a local control box LCB and a door controller unit DCU, the local control box LCB comprises contacts JP5-8, JP5-12, JP5-7, JP5-10 and JP5-6, characterized in that: The additional modules include an operating position voice alarm module, a safety circuit cut-off module and a mute module; The operation position voice alarm module is used to add a voice alarm prompt function on the basis of the original switch module; The safety circuit cut-off module is used to cut off the signal of the safety circuit when stopping the running train; Among them, the silencing module is used to silence the operating position voice alarm module when the platform door system is being repaired.

2. The safety reminder device based on the platform door system mode switch according to claim 1 is characterized in that: The operation position voice alarm module is a buzzer, and the input ports I01, I02 and I03 of the buzzer are respectively connected to relay K1, relay K2 and relay K3. The input ends of pins 13 of relay K1, relay K2 and relay K3 are connected in parallel and connected to JP1-10.

3. The safety reminder device based on the platform door system mode switch according to claim 2 is characterized in that: The input end of pin No. 14 of the relay K1 is connected to JP5-8, the input end of pin No. 14 of the relay K2 is connected to JP5-12, and the input end of pin No. 14 of the relay K3 is connected to JP5-7.

4. The safety reminder device based on the platform door system mode switch according to claim 2 or 3, characterized in that: The mute module is a mute button S2, the output ends of the relays K1, K2 and K3 are all connected to the mute button S2, and the mute button S2 is connected to a buzzer.

5. The safety reminder device based on the platform door system mode switch according to claim 1 is characterized in that: The safety circuit cut-off module is a safety circuit cut-off button S1, the input end of the safety circuit cut-off button S1 is connected to JP5-7 and JP5-6, and the output end of the safety circuit cut-off button S1 is connected to the X1-14 and 955 ports of the door controller unit DCU.

6. The safety reminder device based on the platform door system mode switch according to claim 2 is characterized in that: The electrical input end of the buzzer is connected to a step-down module, and the step-down module is used to convert alternating current into DC5V to power the buzzer.

7. The safety reminder device based on the platform door system mode switch according to claim 1 is characterized in that: The original switch module is a key-type mode conversion switch, including: an isolation operation position, an automatic operation position, a door opening operation position and a door closing operation position.

8. The safety reminder device based on the platform door system mode switch according to claim 7 is characterized in that: The voice prompts of the operation position voice alarm module include: isolation operation position prompt voice, door opening operation position prompt voice and door closing operation position prompt voice.

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