Channel anti-tailgating light control method, control system and channel gate

Abstract

The present application provides a channel anti-tailing light control method, a control system, and a channel gate. The channel anti-tailing light control method includes the following steps: continuously sensing the position of the front toes of a human body; analyzing the human footstep movement process; outputting the current footstep speed of the human footstep movement process; and controlling the flow speed of the channel anti-tailing light according to the current footstep speed. The channel anti-tailing light control method, the control system, and the channel gate of the present application continuously sense the position of the front toes of a human body, analyze the human footstep movement process, and predict the moving speed of the center of the human body in advance based on the current footstep speed, thereby improving the smoothness of the flow effect of the channel anti-tailing light and making the flow speed and position of the channel anti-tailing light consistent with the center of the human body, significantly improving the prompt effect of the channel anti-tailing light.

Description

Technical Field

[0001] The present application belongs to the technical field of control or adjustment systems for gates, and more specifically, relates to a channel anti-tailgating light control method, a control system, and a channel gate. Background Art

[0002] The channel gate is a channel blocking device (channel management equipment) that is widely used in smart ports, smart airports, urban rail transit management, and toll ticket gate systems to manage the flow of people and regulate the entry and exit of pedestrians. Its most basic and core function is to ensure that only one person passes through at a time. It can be used at the entrance of various inspection, charging, and access control occasions. In order to prevent some users from following behind, the existing anti-tailing channel gates will be equipped with light point sensing mechanisms, such as light curtains, gratings, or beams, etc., to sense the number of people in the anti-tailing channel gates to prevent tailgating. At the same time, anti-tailing light strips will be set on the boxes on both sides of the gate. The light strips change light according to the position of the human body, showing the position of the human body in the channel and the direction of travel, which is used to prevent tailgating and head-on intrusion reminders.

[0003] In the existing technology, in order to avoid interference from the gate, the light spot sensing mechanism is usually arranged on the inner side of the top or bottom of the box on both sides of the gate. The disadvantage of the gate with the light spot sensing mechanism arranged on the inner side of the top of the box on both sides is that it cannot detect children who are not tall enough. The disadvantage of the gate with the light spot sensing mechanism arranged on the inner side of the bottom of the box on both sides is that the light strip will have a sense of pause. On the one hand, it is because it detects the position of the human foot, and the human body takes one step at a time during walking. On the other hand, it is because the density of the light spot arrangement is less than the density of the lamp beads on the light strip. One light spot controls the light changes of multiple adjacent lamp beads. This is also the reason for the high delay in light change, which affects pedestrians' judgment of the direction of travel and the anti-tailing effect. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a channel anti-tailgating light control method, control system and channel gate to solve the technical problems of frustration and delay in the anti-tailgating light process in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in this application is to provide a channel anti-tailgating light control method, which includes the following steps:

[0006] Continuously sense the position of the toes on the front side of the human body;

[0007] Analyze the human footsteps movement process;

[0008] Output the current footstep speed of the human body during the footstep movement process;

[0009] Control the water flow speed of the channel anti-tailgating light according to the current footstep speed.

[0010] Preferably, the method for continuously sensing the position of the toes of the front side of a human body comprises the steps of:

[0011] The light spot sensing mechanisms in the gate channel are numbered in advance from 1 to n according to the position sequence;

[0012] Real-time detection of signal obstruction of each light-spot sensing mechanism;

[0013] Output the number of blocked light spots Nmax;

[0014] The light spot number Nmax is the maximum value of the numbers of all blocked light spot sensing mechanisms.

[0015] Preferably, the method for analyzing the human footsteps movement process comprises the steps of:

[0016] Relationship between analysis time T and spot number Nmax;

[0017] The human footsteps movement process is divided into the foot lifting process and the foot landing process.

[0018] Preferably, the method for outputting the current footstep speed of a human footstep motion process comprises the steps of:

[0019] Obtain the change value ΔNmax1 of the light point number Nmax and the time t1 during the human footstep movement;

[0020] The calculation formula for the current footstep speed V is:

[0021]

[0022] Wherein, d is the distance between two connected light spot sensing mechanisms.

[0023] Preferably, the method for outputting the current footstep speed of a human footstep motion process comprises the steps of:

[0024] Obtain the change value ΔNmax2 and time t2 of the light point number Nmax during the landing process of the human footstep movement;

[0025] The calculation formula for the current footstep speed V is:

[0026]

[0027] Wherein, d is the distance between two connected light spot sensing mechanisms.

[0028] Preferably, the method for controlling the water flow speed of the channel anti-tailgating light according to the current footstep speed comprises the steps of:

[0029] Predict the position D1 of the center of the human body at the end of the next human footstep movement process;

[0030] Calculate the distance L between the position D1 of the center of the human body and the current flow position D2 of the channel anti-tailgating light;

[0031] Predict the water flow speed required for the channel anti-tailing light water flow position to reach the position D1 of the center of the human body synchronously.

[0032] Preferably, before continuously sensing the position of the toes on the front side of the human body, the method further comprises the following steps:

[0033] Preset the initial water flow rate of the channel anti-tailgating light;

[0034] After the position of the front toes of the human body is sensed for the first time, the channel anti-tailgating light runs at the initial flow speed.

[0035] Preferably, after controlling the water flow speed of the channel anti-tailgating light according to the current footstep speed, the method further includes the following steps:

[0036] If the front toe position of the human body is not detected, the control channel anti-tailgating light is reset.

[0037] The present application also provides a control system for running the channel anti-tailgating light control method as described above, wherein the control system includes a main control unit, a light spot sensing mechanism and a channel anti-tailgating light, and the light spot sensing mechanism and the channel anti-tailgating light are respectively connected to the main control unit.

[0038] The present application also provides a channel gate, which includes the control system as described above.

[0039] The beneficial effects of the channel anti-tailgating light control method, control system and channel gate provided by the present application are: compared with the existing technology, by continuously sensing the position of the front toes of the human body, analyzing the movement process of the human footsteps, and predicting the moving speed of the center of the human body in advance based on the current footstep speed, it not only improves the smoothness of the water flow effect of the channel anti-tailgating light, but also makes the water flow speed and position of the channel anti-tailgating light consistent with the center of the human body, significantly improving the warning effect of the channel anti-tailgating light. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. 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 any creative work.

[0041] Figure 1 A top view of the channel gate provided in an embodiment of the present application;

[0042] Figure 2 for Figure 1The left view of the channel gate in the figure;

[0043] Figure 3 Flowchart of the channel anti-tailgating light control method provided in an embodiment of the present application;

[0044] Figure 4 for Figure 3 Schematic diagram of the decomposition of the human footsteps movement process;

[0045] Figure 5 A functional relationship diagram of time T and light spot number Nmax provided in an embodiment of the present application;

[0046] Figure 6 A schematic diagram of a control system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0048] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0049] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0051] Please also refer to Figures 1 to 4 The channel anti-tailgating light control method provided in the embodiment of the present application is now described. The channel anti-tailgating light control method includes:

[0052] Step S1, continuously sensing the position of the toes on the front side of the human body;

[0053] Step S2, analyzing the human footsteps movement process;

[0054] Step S3, outputting the current footstep speed of the human body during the footstep movement process;

[0055] Step S4, controlling the water flow speed of the channel anti-tailgating light 10 according to the current footstep speed.

[0056] It can be understood that in step S1, the position of the front toes of the human body is continuously sensed, and the gate can be set on the inner side of the bottom end of the box on both sides based on the light point sensing mechanism 20, and the sensing is performed through its light point sensing mechanism 20. The light point sensing mechanism 20 can be a light curtain, grating and infrared radiation sensing device used on the existing gate, which is intended to detect objects in the gate channel through the principle of light sensing.

[0057] When a person is walking, the toe of one foot is always at the front of the person. This position is also the position sensed by the gate light spot sensing mechanism 20, that is, the position of the toe at the front of the person.

[0058] In step S2, based on the law of human walking, the left foot and the right foot move forward alternately. The process from the back foot exceeding the front foot can be defined as the foot-lifting process, and the process from the back foot exceeding the front foot to the back foot completely landing on the ground can be defined as the foot-landing process. That is, each complete human footstep movement process consists of a foot-lifting process and a foot-landing process. Among them, the position of the front toes of the human body remains unchanged during the foot-lifting process, because the back foot is lifted, and the back foot does not exceed the front foot during the foot-lifting process. In the foot-landing process, the position of the back foot exceeds the front foot. Therefore, the position of the front toes of the human body will change during the foot-landing process until it is completely landed. The human footstep movement process is completed, and the position of the front toes of the human body remains unchanged temporarily.

[0059] In step S3, after analyzing the human footstep movement process, the latest human footstep movement process can be obtained. Since the position of the front toes of the human body is always ahead of the center position of the human body after the human footstep movement process is completed, the moving speed of the center of the human body is predicted in advance by the current footstep speed.

[0060] In step S4, the water flow rate of the channel anti-tailgating lights 10 is controlled based on the current footstep speed. Throughout steps 1 to 4, each step necessarily has a response time. Because the human body's center of motion speed is predicted in advance, commands can be sent to the channel anti-tailgating lights 10 in advance, ensuring that the water flow rate of the channel anti-tailgating lights 10 remains highly consistent with the human body's center of motion speed.

[0061] Based on the above principle, in actual application, at least the following effects can be achieved: the area of ​​the anti-tailgating light 10 in the passage where the human body passes is displayed in red, red indicating that someone is passing in front and tailgating is prohibited; the area in front of the human body that has not been reached is green, green indicating that pedestrians passing can continue to move forward; the position of the center of the human body is the intersection of red and green, and this intersection point always remains consistent with the position of the center of the human body.

[0062] Compared with the existing technology, the channel anti-tailgating light control method provided in the present application continuously senses the position of the front toes of the human body, analyzes the human footstep movement process, and predicts the moving speed of the center of the human body in advance based on the current footstep speed. This not only improves the smoothness of the water flow effect of the channel anti-tailgating light 10, but also makes the water flow speed and position of the channel anti-tailgating light 10 consistent with the center of the human body, significantly improving the warning effect of the channel anti-tailgating light 10.

[0063] In another embodiment of the present application, in step S1, the method for continuously sensing the position of the toes of the front side of the human body includes the steps of:

[0064] The light spot sensing mechanisms 20 in the gate channel are numbered in advance from 1 to n according to the position sequence;

[0065] Real-time detection of signal obstruction of each light spot sensing mechanism 20;

[0066] Output the number of blocked light spots Nmax;

[0067] The light spot number Nmax is the maximum number of all the light spot sensing mechanisms 20 that are blocked.

[0068] It is understandable that when the human body is in the channel, multiple light spot sensing mechanisms 20 will be blocked at the same time, and the output of the blocked light spot number Nmax, the light spot number Nmax is the position of the front toes of the human body, and the actual position corresponding to the light spot number Nmax can be preset.

[0069] Further, please also refer to Figure 5 In step S2, the method for analyzing the human footsteps movement process includes the following steps:

[0070] Relationship between analysis time T and spot number Nmax;

[0071] The human footsteps movement process is divided into the foot lifting process and the foot landing process.

[0072] It can be understood that since the position of the back foot exceeds that of the front foot during the landing process, the position of the front toes of the human body will change during the landing process, that is, the light spot number Nmax of the landing process changes at all times. After the landing process is completed, the position of the front toes of the human body remains unchanged temporarily. The completion of each landing process is regarded as the end of a complete human footstep movement process, that is, the beginning of the foot-lifting process. The light spot number Nmax of the foot-lifting process remains unchanged. In this way, the human footstep movement process can be divided into the foot-lifting process and the landing process to realize the analysis of the human footstep movement process.

[0073] In another embodiment of this application, please refer to Figure 5 In step S3, the method for outputting the current footstep speed of the human footstep movement process includes the steps of:

[0074] Obtain the change value ΔNmax1 of the light point number Nmax and the time t1 during the human footstep movement;

[0075] The calculation formula for the current footstep speed V is:

[0076]

[0077] Wherein, d is the distance between two connected light spot sensing mechanisms 20 .

[0078] It is understandable that the distance d between the two connected light spot sensing mechanisms 20 can be measured in advance, and ΔNmax1·d is the moving distance of the human footsteps. In other words, the average speed of the human footsteps is calculated as the current footstep speed V.

[0079] In another embodiment of this application, please refer to Figure 5 In step S3, the method for outputting the current footstep speed of the human footstep movement process includes the steps of:

[0080] Obtain the change value ΔNmax2 and time t2 of the light point number Nmax during the landing process of the human footstep movement;

[0081] The calculation formula for the current footstep speed V is:

[0082]

[0083] Wherein, d is the distance between two connected light spot sensing mechanisms 20 .

[0084] It is understood that the distance d between the two connected light spot sensing mechanisms 20 can be measured in advance, and ΔNmax2·d is the distance traveled during the landing process of a human footstep. In other words, the average speed of the landing process of a human footstep is calculated as the current footstep speed V.

[0085] Since the time of the foot lifting process and the foot landing process is almost equal, considering that in actual application, there may be acceleration or deceleration of the foot, the average speed of the foot lifting process and the foot landing process are inconsistent. In the same human footstep movement process, since the foot landing process is more time-sensitive than the foot lifting process, the average speed of the foot landing process is used as the current footstep speed V, which can more accurately predict the movement speed of the center of the human body.

[0086] In another embodiment of the present application, in step S4, the method for controlling the water flow speed of the channel anti-tailgating light 10 according to the current footstep speed includes the following steps:

[0087] Predict the position D1 of the center of the human body at the end of the next human footstep movement process;

[0088] Calculate the distance L between the position D1 of the center of the human body and the current flow position D2 of the channel anti-tailgating light 10;

[0089] The water flow speed required for the water flow position of the channel anti-tailgating lamp 10 to synchronously reach the position D1 of the center of the human body.

[0090] It is understood that the predicted position D1 of the center of the human body at the end of the next footstep movement can be calculated based on the current footstep speed and the total time of the current footstep movement. The distance L is also the predicted flow length of the channel anti-tailgating light 10 during the next footstep movement. Since the distance d between the two connected light spot sensing mechanisms 20 is known, the flow speed required for the channel anti-tailgating light 10 to synchronously reach the position D1 of the center of the human body can be predicted. In this way, the flow position of the channel anti-tailgating light 10 is kept consistent with the center of the human body. Even if asynchrony occurs during the flow control process of the channel anti-tailgating light 10, synchronization can be adaptively adjusted.

[0091] In another embodiment of the present application, before continuously sensing the position of the toes on the front side of the human body in step S1, the following steps are further included:

[0092] Preset the initial water flow rate of the channel anti-tailgating light 10;

[0093] After the position of the front toes of the human body is sensed for the first time, the channel anti-tailgating light 10 runs at the initial water flow speed.

[0094] It is understandable that since the speed of the human body cannot be predicted when the position of the front toes of the human body is sensed for the first time, in order to make the water flow position of the channel anti-tailing light 10 as consistent as possible with the center of the human body, the initial water flow speed of the channel anti-tailing light 10 is preset to improve the response speed of the channel anti-tailing light 10.

[0095] In another embodiment of the present application, in step S4, after controlling the flow speed of the channel anti-tailgating light 10 according to the current footstep speed, the following steps are further included:

[0096] If the position of the front toes of the human body is not detected, the control channel anti-tailgating light 10 is reset.

[0097] It is understandable that when the human body walks out of the channel, the position of the human body's front toes cannot be detected, and the channel anti-tailgating light 10 is controlled to reset. For example, after the channel anti-tailgating light 10 is reset, all the lights are green, indicating that both sides of the channel are passable.

[0098] See also Figure 6 The present application also provides a control system for running the channel anti-tailgating light control method as described above, the control system includes a main control unit 30, a light spot sensing mechanism 20 and a channel anti-tailgating light 10, the light spot sensing mechanism 20 and the channel anti-tailgating light 10 are respectively connected to the main control unit 30.

[0099] It can be understood that the light spot sensing mechanism 20 is used to sense the position of the front toes of the human body, the main control unit 30 analyzes the human footstep movement process, outputs the current footstep speed of the human footstep movement process, and controls the flow speed of the channel anti-tailing light 10 according to the current footstep speed.

[0100] See also Figure 1 and Figure 2 , the present application also provides a channel gate, which includes the control system as described above.

[0101] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A channel anti-tailgating light control method, characterized in that: Including steps: Continuously sense the position of the toes on the front side of the human body; Analyze the human footsteps movement process; Output the current footstep speed of the human body during the footstep movement process; Control the water flow speed of the channel anti-tailgating light according to the current footstep speed; A method for continuously sensing the position of the toes of a human body comprises the following steps: The light spot sensing mechanisms in the gate channel are numbered in advance from 1 to n according to the position sequence; Real-time detection of signal obstruction of each light-spot sensing mechanism; Output the number of blocked light spots Nmax; The light spot number Nmax is the maximum number of all blocked light spot sensing mechanisms; The method for analyzing the human footsteps movement process includes the following steps: Relationship between analysis time T and spot number Nmax; The human footsteps movement process is divided into the foot lifting process and the foot landing process; The method for outputting the current footstep speed of a human footstep movement process comprises the steps of: Get the change value of the light point number Nmax during the human footsteps and time t1; The calculation formula for the current footstep speed V is: ， Wherein, d is the distance between two connected light spot sensing mechanisms.

2. The channel anti-tailgating light control method according to claim 1, characterized in that: The method for outputting the current footstep speed of a human footstep movement process comprises the steps of: Get the change value of the light point number Nmax during the landing process of the human footsteps and time t2; The calculation formula for the current footstep speed V is: ， Wherein, d is the distance between two connected light spot sensing mechanisms.

3. The channel anti-tailgating light control method according to claim 1 or 2, characterized in that: The method for controlling the water flow speed of a channel anti-tailgating light according to the current footstep speed comprises the steps of: Predict the position D1 of the center of the human body at the end of the next human footstep movement process; Calculate the distance L between the position D1 of the center of the human body and the current flow position D2 of the channel anti-tailgating light; Predict the water flow speed required for the channel anti-tailing light water flow position to reach the position D1 of the center of the human body synchronously.

4. The channel anti-tailgating light control method according to claim 1 or 2, characterized in that: Before continuously sensing the position of the toes on the front side of the human body, the following steps are also included: Preset the initial water flow rate of the channel anti-tailgating light; After the position of the front toes of the human body is sensed for the first time, the channel anti-tailgating light runs at the initial flow speed.

5. The channel anti-tailgating light control method according to claim 1 or 2, characterized in that: After controlling the flow speed of the channel anti-tailgating light according to the current footstep speed, the method further includes the following steps: If the front toe position of the human body is not detected, the control channel anti-tailgating light is reset.

6. A control system for running the channel anti-tailgating light control method according to any one of claims 1 to 5, characterized in that: It includes a main control unit, a light spot sensing mechanism and a channel anti-tailgating light, wherein the light spot sensing mechanism and the channel anti-tailgating light are respectively connected to the main control unit; The light spot sensing mechanism is used to sense the position of the front toes of the human body. The main control unit analyzes the human footstep movement process, outputs the current footstep speed of the human footstep movement process, and controls the flow speed of the channel anti-tailing light according to the current footstep speed.

7. A channel gate, characterized in that: Comprising the control system as claimed in claim 6.

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