Subway station gate capable of being provided with normally-open leaf door

Abstract

The utility model relates to the field of automatic control, in particular to a subway station gate capable of being provided with a normally-open fan door. The door mechanism is movably installed on a case, the sensor assembly is used for detecting the opening and closing position of the door mechanism, and the passing logic control main board PCM is electrically connected with the sensor assembly. The subway station gate is characterized in that the subway station gate further comprises a mode control circuit used for preprocessing feedback signals of the sensors; the mode control circuit comprises a signal transfer board MIB connected with the sensor assembly, a relay assembly connected with the main switch and an interface assembly responsible for correspondingly conducting signals; and the signal transfer board MIB is connected with the passing logic control main board PCM through a relay assembly. According to the gate machine, the passing logic control main board PCM can correctly recognize feedback signals of all the sensors, the door leaf mechanism is kept in a normally-open state, then the station entering requirement of large passenger flow is met, and the station entering congestion condition of a subway station is relieved.

Description

Technical Field

[0001] The utility model relates to the field of automatic control, in particular to a subway station gate machine capable of being set to keep doors normally open. Background Art

[0002] Gates are a key component of automated ticket vending and inspection systems, used to separate and control passenger access between paid and non-paid areas. They typically feature automated ticket checking, improving order in ticket queuing, effectively identifying counterfeit tickets and fare evasion, and reducing the workload of station staff.

[0003] A typical subway station turnstile typically consists of a chassis, a movable door mechanism mounted on the chassis, and a PCM (Public Control Logic Module) that controls the door mechanism's opening and closing. The PCM controls all signals and functions related to the door mechanism, managing its operating mode and serving as the core control component. The PCM is connected to multiple sensors and uses feedback to identify the door mechanism's open and closed position and status, thereby determining whether the mechanism is operating normally.

[0004] In real-world applications, in certain subway stations with high passenger flow or during periods of rapid passenger flow, the gate mechanism often needs to continuously open and close to meet ticket checking requirements. Although this operation takes a short time, in these specific scenarios with large passenger flows, the accumulated time still hinders the progress of people queuing to enter the station. Even at maximum opening and closing efficiency, the gate mechanism cannot meet traffic flow requirements, causing congestion.

[0005] Therefore, staff often need to set the door mechanism to a normally open state, skipping the door mechanism's opening / closing action while maintaining the ticket verification function to improve traffic efficiency. However, in existing subway station gates, the access logic control motherboard (PCM) needs to constantly receive sensor feedback signals. A normally open door mechanism will cause the sensor to feed back erroneous detection signals to the PCM. Based on this erroneous feedback signal, the PCM will trigger an error reporting program, causing the entire gate machine to go offline. Utility Model Content

[0006] The purpose of this utility model is to provide a subway station gate machine that can set the fan door to be normally open. The gate machine can enable the passage logic control main board PCM to correctly identify the feedback signals of each sensor and maintain the fan door mechanism in a normally open state, thereby meeting the entry needs of large passenger flow and alleviating the congestion at the subway station.

[0007] In order to achieve the above purpose, the specific technical solutions adopted by the utility model are as follows:

[0008] A subway station gate machine with a door that can be set to be normally open, comprising a door mechanism movably mounted on the chassis, a sensor assembly for detecting the opening and closing position of the door mechanism, and a passage logic control main board PCM electrically connected to the sensor assembly; characterized in that the subway station gate machine also comprises a mode control circuit for pre-processing the sensor feedback signal; the mode control circuit comprises a signal transfer board MIB connected to the sensor assembly, a relay assembly connected to the main switch, and an interface assembly responsible for the corresponding conduction signal; the signal transfer board MIB is connected to the passage logic control main board PCM via the relay assembly.

[0009] As a preferred embodiment of the present invention, the door mechanism includes a first door and a first connecting arm electromagnetically connected to the first door; and also includes a second door and a second connecting arm electromagnetically connected to the second door.

[0010] As a preferred embodiment of the present invention, the sensor assembly includes a first position sensor for feedback of the open position state of the first door and a second position sensor for feedback of the closed position state of the first door; it also includes a third position sensor for feedback of the open position state of the second door and a fourth position sensor for feedback of the closed position state of the second door.

[0011] As a preferred embodiment of the present invention, the sensor assembly further includes a first reed switch sensor for feedback of the engagement state of the first door and the first connecting arm; and a second reed switch sensor for feedback of the engagement state of the second door and the second connecting arm.

[0012] As a preferred embodiment of the present invention, the signal transfer board MIB includes a first transfer board connected to the first position sensor, the second position sensor and the first reed switch sensor; and also includes a second transfer board connected to the third position sensor, the fourth position sensor and the second reed switch sensor.

[0013] As a preferred embodiment of the present invention, the relay assembly includes a first relay group connected to the first transfer board and a second relay group connected to the second transfer board.

[0014] As a preferred embodiment of the present invention, the first relay group and the second relay group each include three electromagnetic relays; each of the electromagnetic relays is connected to a protection diode.

[0015] As a preferred embodiment of the present invention, the subway station gate machine further includes a mode indication circuit connected to the main switch, and the mode indication circuit includes a current limiting resistor and an LED light-emitting tube connected in series with the current limiting resistor.

[0016] As a preferred embodiment of the present invention, the subway station gate machine further includes an electromagnet power supply for supplying power to the electromagnets on the first connecting arm and the second connecting arm.

[0017] In summary, the present invention has the following beneficial effects:

[0018] 1. The sensor feedback signal is pre-processed through the mode control circuit, which realizes the combined correction of the sensor feedback signal that should be erroneous in the normally open state, so that the signal finally input into the passage logic control main board PCM is logically correct, avoiding the passage logic control main board PCM to feedback the fault status to the upper computer, causing the gate equipment to enter the suspended service state.

[0019] 2. Through the construction and design of hardware circuits, the control of the door being always open is realized. Compared with using software to control the passage logic control motherboard PCM to realize the gate machine being always open, it is more stable and avoids the situation where the door is closed incorrectly and injures passengers under the software setting method, which is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a subway station gate machine that can be set to always open its doors;

[0021] Figure 2 This is the circuit diagram of the mode control circuit. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings.

[0023] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0024] In this embodiment, Figure 1 As shown, this type of subway station gate machine with doors that can be set to normally open includes a door mechanism that is movably mounted on the chassis. The door mechanism has two doors that can move independently but cooperate with each other to complete the opening and closing operations, namely a first door and a second door. The movement of each door requires the drive of the connecting arm connected to it. The first connecting arm is connected to the first door by electromagnetic attraction; the second connecting arm is also connected to the second door by electromagnetic attraction. Each connecting arm is equipped with an electromagnet, which is powered by a dedicated electromagnet power supply. When the doors need to be normally open, the electromagnet power supply is controlled to be de-energized, and the two connecting arms can be separated from their respective doors. The doors lose their power source and are in the normally open state.

[0025] The first position sensor in the sensor assembly monitors and provides feedback on whether the first door has moved to the preset open position. It transmits this feedback signal to the access logic control mainboard (PCM) via a signal transmission line as door status information. The second position sensor monitors and provides feedback on whether the first door has moved to the preset closed position. This signal is also transmitted via a signal transmission line to the access logic control mainboard (PCM) as door status information. Similarly, the third and fourth position sensors monitor and provide feedback on whether the second door has moved to the preset open and closed positions, respectively.

[0026] The sensor assembly further includes a first reed switch sensor, which is mainly used to monitor the engagement state of the first door and the first connecting arm; and a second reed switch sensor is used to monitor the engagement state of the second door and the second connecting arm.

[0027] Under normal conditions, the electromagnet on the connecting arm is always energized, constantly engaging the connecting arm and the door, allowing the connecting arm to drive the door open and close. During this time, both reed switch sensors consistently send correct feedback signals to the PCM. During the opening and closing process, the four position sensors send feedback signals to the PCM indicating whether each door is properly closed. The PCM will not trigger the error reporting routine unless it receives these signals.

[0028] When the door needs to be set to normally open mode, the power supply of the electromagnet is cut off, and the two connecting arms are separated from their respective doors. At this time, the pin of the reed switch sensor is grounded, and the passage logic control main board PCM obtains a false signal that the connecting arm and the door are still attracted, thereby ensuring that the toll collection system remains normally open; in addition, the feedback signals of the first position sensor and the second position sensor are combined into one path, and the corresponding signal input pins of the passage logic control main board PCM that receive the above two signals send feedback signals at the same time. The passage logic control main board PCM determines that this state is normal according to the software preset command, thereby keeping the toll collection system normally open, but at this time the door movement system is actually in a shutdown state.

[0029] like Figure 2 In the mode control circuit shown, the relay assembly includes a first relay group and a second relay group. The first relay group includes three electromagnetic relays, U1, U2 and U3; the second relay group includes three electromagnetic relays, U4, U5 and U6.

[0030] The mode control circuit includes an interface component, which includes interface H1 and interface H3. Each interface includes 8 pins. Both interfaces are connected to the I / O port of the pass logic control main board PCM for sending or receiving power or communication signals thereto.

[0031] The interface component includes interface H2 and interface H4, both of which are connected to the I / O port of the signal transfer board MIB for sending or receiving power or communication signals thereto.

[0032] like Figure 2 As shown, pins 2 and 8 of interface H2 are connected to GND, pin 4 is connected to the signal feedback terminal BO of the first position sensor; pin 5 is connected to the signal feedback terminal BC of the second position sensor; pin 3 is connected to the signal feedback terminal B-SW of the first reed switch sensor; pin 1 is connected to the 24V DC power supply; pin 6 is connected to the positive pole B-SOL of the electromagnet on the first connecting arm; pin 7 is connected to the normally closed contact No. 2 and the moving contact No. 3 of the electromagnetic relay U2 in sequence, and finally connected to pin 7 of interface H1, and pin 7 of interface H1 is connected to the negative pole A-M03 of the electromagnet power supply provided by the pass logic control main board PCM.

[0033] Pins 2 and 8 of interface H1 are connected to GND; pin 1 is connected to a 24V DC power supply; pin 3 is connected to the A-SW acquisition terminal of the pass logic control main board PCM for the feedback signal of the first reed switch sensor; pin 4 is connected to the moving contact and the normally closed contact through pins 6 and 7 of the electromagnetic relay U2, and then connected to pin 4 of interface H2, so that when the switch is normally closed and the electromagnetic relay U2 is not energized, the first door opening position signal sent by the signal feedback terminal BO of the first position sensor can be sent to the pass logic control main board PCM through the electromagnetic relay U2; at the same time, the first door and first connecting arm attraction status feedback signal sent by the signal feedback terminal B-SW of the first reed switch sensor is sent to the pass logic control main board PCM through the electromagnetic relay U1, realizing control in normal mode.

[0034] The first position sensor, second position sensor, and first reed switch sensor send feedback signals to the signal transfer board (MIB). These signals are then transmitted to electromagnetic relays U2 and U1 via interface H2, and ultimately to the access logic control main board (PCM) via interface H1. The electromagnet power supply flows through the access logic control main board (PCM), interface H1, and electromagnetic relay U3, supplying power to the electromagnet on the first connecting arm.

[0035] In summary, Figure 2 It can be seen that, by the same token, the electromagnetic relays U4, U5 and U6 are used to complete the electromagnetic power supply of the connecting arm on the second door and the signal feedback of the third position sensor, the fourth position sensor and the second reed switch sensor.

[0036] Pins 8 of electromagnetic relays U1 and U4 are connected in parallel to GND, and their respective pins 1 are connected in parallel to the DC 24V terminal; a protection diode D1 is connected in parallel between pins 1 and 8 of electromagnetic relay U1; a protection diode D5 is connected in parallel between pins 1 and 8 of electromagnetic relay U4; the normally open contact No. 5 of electromagnetic relays U1 and U4 is connected to GND, and the normally closed contact No. 2 is left floating.

[0037] Electromagnetic relays U2 and U5 are respectively connected to protection diodes D2 and D6; electromagnetic relays U3 and U6 are respectively connected to protection diodes D3 and D7.

[0038] The main switch SW1 is a single-pole double-throw switch, whose static contact is connected in series with the protection diode D4, the current-limiting resistor R1 and the light-emitting diode LED1, and is connected in parallel with the No. 1 contact of each electromagnetic relay.

[0039] In one embodiment, in normal mode, the main switch SW1 is in an open state, and the sensor components corresponding to the above-mentioned doors all send logically normal feedback signals to the passage logic control main board PCM through the normally closed contacts of six electromagnetic relays.

[0040] In another embodiment, when the door is in the normally open mode, the main switch SW1 is connected to the 24V power supply, and the six electromagnetic relays are energized, so that their respective moving contacts are disconnected from the normally closed contacts and the moving contacts are closed to the normally open contacts. Figure 2 As can be seen, the two feedback signals from the first and second position sensors are combined into one signal, which is sent to the access logic control mainboard (PCM) via H1. The two feedback signals from the third and fourth position sensors are combined into one signal, which is sent to the access logic control mainboard (PCM) via H3. The signal feedback terminal B-SW of the first reed switch sensor on the PCM is disconnected from the first reed switch sensor feedback signal acquisition terminal A-SW, which is then connected to GND. This causes the PCM to receive a false signal, preventing it from receiving a disconnection signal and causing an error shutdown. Similarly, the two feedback signals from the two position sensors corresponding to the second door are sent to the access logic control mainboard (PCM) via H3. The signal feedback terminal D-SW of the second reed switch sensor is disconnected from the second reed switch sensor feedback signal acquisition terminal C-SW, which is then connected to GND.

[0041] In another embodiment, the electromagnet power supply is connected to the passage logic control main board PCM, and the electromagnet on the first connecting arm is powered by the passage logic control main board PCM. When the main switch SW1 is connected to the 24V power supply, the B-SOL and A-M03 terminals can be disconnected through the electromagnetic relay U3, so that the power supply path is interrupted and the first door loses power, thereby preventing the door from suddenly closing and pinching pedestrians due to system failure at the physical level; similarly, the power to the second door can be cut off through the electromagnetic relay U6.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A subway station gate machine capable of being set to normally open, comprising a gate mechanism movably mounted on a chassis, a sensor assembly for detecting the opening and closing position of the gate mechanism, and a passage logic control mainboard (PCM) electrically connected to the sensor assembly; characterized in that: This type of subway station gate also includes a mode control circuit for pre-processing sensor feedback signals; the mode control circuit includes a signal transfer board MIB connected to the sensor component, a relay component connected to the main switch, and an interface component responsible for the corresponding conduction signal; the signal transfer board MIB is connected to the passage logic control main board PCM through the relay component.

2. A subway station gate machine capable of setting a door to be normally open according to claim 1, characterized in that: The door mechanism includes a first door and a first connecting arm electromagnetically connected to the first door; and also includes a second door and a second connecting arm electromagnetically connected to the second door.

3. A subway station gate machine capable of setting a door to be normally open according to claim 2, characterized in that: The sensor assembly includes a first position sensor for feedback of the fully opened state of the first door and a second position sensor for feedback of the fully closed state of the first door; it also includes a third position sensor for feedback of the fully opened state of the second door and a fourth position sensor for feedback of the fully closed state of the second door.

4. A subway station gate machine capable of setting a door to be normally open according to claim 3, characterized in that: The sensor assembly further includes a first reed switch sensor for feeding back the engagement state of the first door and the first connecting arm; and a second reed switch sensor for feeding back the engagement state of the second door and the second connecting arm.

5. A subway station gate capable of setting a door to be normally open according to claim 4, characterized in that: The signal transfer board MIB includes a first transfer board connected to the first position sensor, the second position sensor and the first reed switch sensor; and also includes a second transfer board connected to the third position sensor, the fourth position sensor and the second reed switch sensor.

6. A subway station gate capable of setting a door to be normally open according to claim 5, characterized in that: The relay assembly includes a first relay group connected to the first relay board and a second relay group connected to the second relay board.

7. A subway station gate capable of setting a door to be normally open according to claim 6, characterized in that: The first relay group and the second relay group each include three electromagnetic relays; each of the electromagnetic relays is connected to a protection diode.

8. A subway station gate capable of setting a door to be normally open according to claim 7, characterized in that: This subway station gate machine also includes a mode indication circuit connected to the main switch, and the mode indication circuit includes a current limiting resistor and an LED light-emitting tube connected in series with the current limiting resistor.

9. A subway station gate capable of setting a door to be normally open according to claim 8, characterized in that: The subway station gate machine also includes an electromagnet power supply for supplying power to the electromagnets on the first connecting arm and the second connecting arm.

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