A circuit architecture and control system for controlling turnstiles

Abstract

This utility model relates to the field of turnstile technology, and more particularly to a circuit architecture and control system for controlling turnstiles. The circuit architecture includes: a radar sensing detection unit for monitoring the presence of targets in the turnstile area and outputting corresponding detection signals; and a signal processing unit, whose input terminal is connected to the detection signal output terminal of the radar sensing detection unit, for receiving the detection signals and generating corresponding anti-fall-bar control signals or delayed-fall-bar control signals. This application employs a circuit architecture composed of non-contact detection combined with time relays and intermediate relays, which can suspend the gate arm to prevent smashing when a target appears within the detection coverage area, and precisely delay the fall-bar after the target has completely passed through, avoiding safety accidents caused by misjudgment, reducing manual intervention, and ensuring stable operation of the automatic fall-bar function, significantly reducing the possibility of human error.

Description

Technical Field

[0001] This utility model relates to the field of turnstile technology, and in particular to a circuit architecture and turnstile control system for controlling turnstiles. Background Technology

[0002] Existing turnstile control systems in parking lots, toll booths, and other similar locations commonly use inductive loops as the primary means of vehicle detection. Their working principle is based on electromagnetic induction: a loop coil is buried beneath the lane, and a specific current is passed through it to create an electromagnetic field. When a vehicle containing metal passes over the coil, it causes a change in the coil's inductance. The vehicle detector detects this change to determine the vehicle's presence and outputs a signal to control the raising and lowering of the gate arm, thus achieving a basic anti-collision function.

[0003] However, deploying inductive loop detectors requires trenching, burying wires, and sealing the road surface, which involves a large amount of construction work, high costs, and inconvenient maintenance. Furthermore, their performance is easily affected by environmental factors, the stability of the detection signal is poor, and they cannot accurately detect pedestrians, non-motorized vehicles, or motor vehicles. This poses a safety hazard of the gate arm falling and injuring pedestrians, and they cannot achieve the "anti-pinch" function. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a circuit architecture and control system for controlling turnstiles, which, while facilitating installation and maintenance, provides stable control of the turnstiles to eliminate the safety hazard of pedestrians being injured by falling objects.

[0005] In a first aspect, this application provides a circuit architecture for controlling a gate, comprising:

[0006] The radar sensing and detection unit is used to monitor the presence of targets in the gate area and output corresponding detection signals.

[0007] The signal processing unit, whose input terminal is connected to the detection signal output terminal of the radar sensing and detection unit, is used to receive the detection signal and generate the corresponding anti-fall control signal or delayed anti-fall control signal.

[0008] The output drive unit has its input end connected to the control signal output end of the signal processing unit and its output end connected to the gate control port. It is used to keep the gate arm in a suspended state in response to the anti-fall control signal, or to drive the gate arm to perform the falling action in response to the delayed falling control signal.

[0009] The signal processing unit includes time relays and intermediate relays.

[0010] In conjunction with the first aspect, the coil circuit of the intermediate relay is connected to the output terminal of the radar sensing detection unit, and its normally open contact is connected in series in the anti-fall control circuit of the gate; the coil of the time relay is connected in parallel with the coil of the intermediate relay.

[0011] In conjunction with the first aspect, the time relay is a power-off delay type relay, and its delayed closing contact is connected to the gate's lowering control terminal.

[0012] In conjunction with the first aspect, when the radar sensing unit detects a target, the intermediate relay and the time relay are energized simultaneously. The normally open contact of the intermediate relay closes, outputting an anti-fall control signal to the gate control port.

[0013] In conjunction with the first aspect, when the target leaves, the intermediate relay and the time relay are de-energized. The time relay's delayed contact closes after a delay following its de-energization, outputting a delayed gate-lowering control signal to the gate control port.

[0014] In conjunction with the first aspect, the radar sensing and detection unit is a millimeter-wave radar, located outside the gate and close to the gate area.

[0015] In conjunction with the first aspect, the time relay and the intermediate relay are respectively located inside the turnstile.

[0016] In conjunction with the first aspect, the delay time of the time relay is set to 1 second and the action time is set to 0.5 seconds.

[0017] In conjunction with the first aspect, the input terminal of the signal processing unit is also connected to a DC power supply.

[0018] Secondly, embodiments of this application also provide a gate control system, including the circuit architecture for controlling the gate as described above.

[0019] The circuit architecture and control system for controlling a turnstile provided in this application include: a radar sensing detection unit for monitoring the presence of targets in the gate area and outputting corresponding detection signals; a signal processing unit whose input terminal is connected to the detection signal output terminal of the radar sensing detection unit for receiving detection signals and generating corresponding anti-fall-off control signals or delayed-fall-off control signals; and an output drive unit whose input terminal is connected to the control signal output terminal of the signal processing unit and whose output terminal is connected to the turnstile control port for responding to the anti-fall-off control signal to maintain the gate arm in a suspended state, or responding to the delayed-fall-off control signal to drive the gate arm to perform a falling action; wherein, the signal processing unit includes a time relay and an intermediate relay.

[0020] This application adopts a circuit architecture consisting of non-contact detection combined with time relays and intermediate relays, which can suspend the gate arm to prevent smashing when the target appears in the coverage detection area, and precisely delay the lowering of the gate arm after the target has completely passed through, avoiding safety accidents caused by misjudgment, reducing manual operation intervention, and the automatic lowering function operates stably, greatly reducing the possibility of human error.

[0021] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 Electrical schematic diagram of the circuit architecture for controlling the gate provided in the embodiments of this application;

[0025] Figure 2 This application provides a schematic diagram of the signal transmission of a circuit architecture for controlling a gate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] To facilitate understanding of this embodiment, the technical terms used in this application will be briefly introduced below.

[0028] A time relay is a type of relay whose output circuit only produces a jump change (or contact actuation) after a specified precise time has elapsed after an input signal is applied (or removed). The main function of a time relay is as an actuator in simple program control. When it receives a start signal, it begins timing; after the timing ends, its working contacts open or close, thereby driving the subsequent circuitry. Generally, the delay performance of a time relay is adjustable within the design range, allowing for convenient adjustment of its delay time.

[0029] Intermediate relays are typically used to transmit signals and control multiple circuits simultaneously. They can also be used to directly control small-capacity motors or other electrical actuators.

[0030] After introducing the technical terms used in this application, the application scenarios and design concepts of the embodiments of this application will be briefly described below.

[0031] Based on this, this application provides a circuit architecture and a gate control system for controlling a gate.

[0032] Example 1

[0033] This application provides a circuit architecture for controlling a gate, including: a radar sensing detection unit, a signal processing unit, and an output driving unit.

[0034] The radar sensing and detection unit is used to monitor the presence of targets in the gate area and output corresponding detection signals.

[0035] The signal processing unit has its input terminal connected to the detection signal output terminal of the radar sensing and detection unit, and is used to receive the detection signal and generate the corresponding anti-fall control signal or delayed anti-fall control signal.

[0036] The input terminal of the output drive unit is connected to the control signal output terminal of the signal processing unit, and its output terminal is connected to the gate control port. It is used to keep the gate arm in a suspended state in response to the anti-fall control signal, or to drive the gate arm to perform the falling action in response to the delayed falling control signal.

[0037] The signal processing unit includes time relays and intermediate relays.

[0038] Combination Figure 1 , Figure 2 As shown, this application uses a radar sensing detection unit (combined with...) Figure 1 The radar (as described in the text) monitors the presence of targets in the gate area and outputs corresponding detection signals based on the target presence status. Subsequently, the signal processing unit receives the detection signals and generates corresponding anti-fall control signals or delayed-fall control signals. This causes the output drive unit to respond to the anti-fall control signal to keep the gate arm in a suspended state, or respond to the delayed-fall control signal to drive the gate arm to perform a falling action. In this way, the non-contact sensing detection provided by the radar sensing unit replaces the existing inductive coil. Installation does not require ground construction, effectively reducing installation and maintenance costs. It also has strong environmental adaptability, is not easily affected by weather or penetration, and has strong anti-interference capabilities, enabling stable operation of the detection work. The detection area covers a wide range, and the gate arm is controlled to hover or fall with a delay based on the detection signals to protect the target safety, improving security and user experience.

[0039] In conjunction with the first aspect, the coil circuit of the intermediate relay is connected to the output terminal of the radar sensing detection unit, and its normally open contact is connected in series in the anti-fall control circuit of the gate; the coil of the time relay is connected in parallel with the coil of the intermediate relay.

[0040] The radar sensing unit (typically a low-voltage DC electronic circuit, such as 5V or 24V) drives the coil of an intermediate relay to control the gate's anti-fall control circuit (which may be a higher-voltage AC circuit, such as 220V or 380V). This completely isolates the sensitive radar sensing unit from the motor power circuit, which may experience voltage fluctuations and inrush currents, preventing interference or malfunctions from the high-voltage side from damaging the expensive radar module. This also solves the control problem between circuits of different voltage and current levels. The radar sensing unit only needs to provide a small current signal to control a large current load (such as a motor contactor) via a relay. Even if the starting current required by the gate's anti-fall motor is large, it is entirely borne by the contacts of the intermediate relay and the subsequent AC contactor. The radar module only needs to issue commands, ensuring control reliability and preventing the radar sensing unit from overloading, overheating, or being damaged by directly driving a large load.

[0041] At the same time, the coil of the time relay (combined) Figure 1 The “KT” in the middle relay (combined with) Figure 1 The parallel connection of the "KA" coils means that when the radar detects a target (a vehicle or a person), both relays will be energized simultaneously.

[0042] In conjunction with the first aspect, the time relay is a power-off delay type relay, and its delayed closing contact is connected to the gate's lowering control terminal.

[0043] When a power-off delay relay is energized, its internal contacts remain in their original state and do not operate (e.g., normally open contacts remain normally open, and normally closed contacts remain normally closed). When the coil is de-energized, the relay will start timing. The contacts will only operate after the delay time reaches a preset value (e.g., normally open contacts close, and normally closed contacts open). The operating time can be preset, and the contacts will only return to their initial state after the preset value is reached (e.g., normally open contacts open again, and normally closed contacts close again).

[0044] Understandably, after a target enters the detection area, the intermediate relay and the time relay are energized to activate the anti-fall gate control circuit, preventing the gate arm circuit from damaging or hitting the target. The gate arm is then delayed in falling after the target leaves the detection area to ensure that there are no targets in the detection area before falling, further reducing the risk of the gate arm hitting the target.

[0045] Understandably, if the target reappears within the delay period, the anti-fall control circuit will be reactivated.

[0046] In conjunction with the first aspect, when the radar sensing unit detects a target, the intermediate relay and the time relay are energized simultaneously. The normally open contact of the intermediate relay closes, outputting an anti-fall control signal to the gate control port.

[0047] At this time, the contacts of the intermediate relay are connected to the gate's anti-fall control terminal to prevent the gate arm from falling, thereby preventing it from hitting the target (vehicle or person).

[0048] In conjunction with the first aspect, when the target leaves, the intermediate relay and the time relay are de-energized. The time relay's delayed contact closes after a delay following its de-energization, outputting a delayed gate-lowering control signal to the gate control port.

[0049] Once the target leaves the detection area, the radar output signal disappears, and the intermediate relay and time relay are simultaneously de-energized. The delayed closing contact is connected to the gate's lowering control terminal. That is, after the delay, the normally open contact closes and connects to the gate's lowering control terminal, causing the gate arm to fall. After the preset action time is reached, the contact returns to its initial state, without affecting the execution of the gate lifting command.

[0050] In conjunction with the first aspect, the radar sensing and detection unit is a millimeter-wave radar, located outside the gate and close to the gate area.

[0051] In this embodiment, the radar sensing unit is specifically a 79GHz millimeter-wave radar with a detection range of 3 meters longitudinally and 1 meter laterally, an operating voltage of DC12V, and a temperature range of -40℃ to 85℃. It has an IP66 waterproof rating. It is understood that the actual detection range can be adjusted and configured as needed, and other performance parameters may vary depending on the model of the millimeter-wave radar purchased and used. This is merely an example and not a limitation.

[0052] In conjunction with the first aspect, the time relay and the intermediate relay are respectively located inside the turnstile.

[0053] By placing the logic execution carriers (time relays and intermediate relays) as close as possible to the controlled object (gate motor) and the sensing carrier (radar sensor detection unit), a compact, efficient, and reliable localized control unit is formed. The connections between them require only short internal wiring, eliminating the need for long cables to remote control cabinets. This saves significant amounts of wiring and cable trays / conduits, physically reducing the risk of loose connections, corrosion, and other electrical issues. Furthermore, the gate housing itself serves as a ready-made protective enclosure, providing dustproof, moisture-proof, and accidental mechanical impact protection for the internal relays. This allows standard relay models to meet the requirements without the need for separately equipping them with higher protection ratings (such as IP65), saving costs.

[0054] In conjunction with the first aspect, the delay time of the time relay is set to 1 second and the action time is set to 0.5 seconds.

[0055] When pedestrians or vehicles pass through the gate normally, their bodies or vehicle bodies may create brief "signal gaps" or fluctuations within the radar detection area (e.g., gaps when pedestrians step or gaps at vehicle joints). If the time relay does not have a delay (i.e., instantaneous action), the gate will immediately begin to fall as soon as the radar signal disappears, easily causing an accident where the gate hits the rear of a pedestrian or vehicle. By setting a time relay, the system only determines that "the target has completely passed" and then lowers the gate when the signal disappearance lasts for more than one second. This one-second window perfectly covers various normal passage gaps, greatly reducing the risk of accidental impact.

[0056] Understandably, the delay time can also be set to other time values ​​depending on the actual situation.

[0057] In conjunction with the first aspect, the input terminal of the signal processing unit is also connected to a DC power supply.

[0058] Combination Figure 1 As shown, the DC power supply provides a DC 24V voltage directly to the signal processing unit, effectively isolating it from the mains power network both physically and electrically. This design concept of separating strong and weak currents not only improves system safety and reduces the risk of electric shock, but also reduces the impact of strong current interference on the precision control logic, making the operation of the signal processing unit more stable and reliable. Most modern industrial control equipment and gate motherboards provide standard DC power terminals, making the installation and modification of this invention exceptionally simple, eliminating the need for additional complex power conversion equipment, and significantly improving the versatility and ease of deployment of the solution.

[0059] Secondly, this application also provides a gate control system, including the circuit architecture for controlling the gate as described above.

[0060] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system and apparatus described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0061] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0062] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this utility model, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this utility model. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0063] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A circuit architecture for controlling a gate, characterized in that, include: The radar sensing and detection unit is used to monitor the presence of targets in the gate area and output corresponding detection signals. The signal processing unit has its input terminal connected to the detection signal output terminal of the radar sensing and detection unit, and is used to receive the detection signal and generate a corresponding anti-fall control signal or a delayed anti-fall control signal. An output drive unit, whose input terminal is connected to the control signal output terminal of the signal processing unit and whose output terminal is connected to the gate control port, is used to maintain the gate arm in a suspended state in response to the anti-fall control signal, or to drive the gate arm to perform a falling action in response to the delayed falling control signal. The signal processing unit includes a time relay and an intermediate relay.

2. The circuit architecture according to claim 1, characterized in that, The coil circuit of the intermediate relay is connected to the output terminal of the radar sensing detection unit, and its normally open contact is connected in series in the anti-fall control circuit of the gate; the coil of the time relay is connected in parallel with the coil of the intermediate relay.

3. The circuit architecture according to claim 1, characterized in that, The time relay is a power-off delay type relay, and its delayed closing contact is connected to the gate's lowering control terminal.

4. The circuit architecture according to claim 3, characterized in that, When the radar sensing unit detects a target, the intermediate relay and the time relay are energized simultaneously, the normally open contact of the intermediate relay closes, and an anti-fall control signal is output to the gate control port.

5. The circuit architecture according to claim 4, characterized in that, After the target leaves, the intermediate relay and the time relay are de-energized. The time relay's delayed contact closes after a delay following its de-energization, outputting a delayed gate-lowering control signal to the gate control port.

6. The circuit architecture according to claim 1, characterized in that, The radar sensing and detection unit is a millimeter-wave radar, located outside the gate and close to the gate area.

7. The circuit architecture according to claim 1, characterized in that, The time relay and the intermediate relay are respectively located inside the gate.

8. The circuit architecture according to claim 7, characterized in that, The delay time of the time relay is set to 1 second, and the action time is set to 0.5 seconds.

9. The circuit architecture according to claim 1, characterized in that, The input terminal of the signal processing unit is also connected to a DC power supply.

10. A gate control system, characterized in that, It includes the circuit architecture for controlling the gate as described in any one of claims 1-9.

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