JPH04245392A - Door opening and closing controller for entrance and exit gate - Google Patents

Abstract

PURPOSE:To improve the performance and reliability by performing opening/ closing control over the door of the entrance/exit gate of an automatic ticket inspecting machine, etc., according to the passage state of gate passers. CONSTITUTION:When a passer enters the gate, a passer position detecting means and a passer speed detecting means detect the position and passing speed of the passer entering the gate. A decision means decides whether or not a ticket is inserted and the adequacy of the ticket to decide whether the passer is a legal or an illegal passer. Further, a door angle detecting means detects the current opening/closing angle of the door. In this case, a control means performs fuzzy inference based on the detection information and decision information from the detecting means and decision means to control the opening/ closing direction and speed of the door suitably to the passing state of the passer. Consequently, the performance and reliability of the entrance/exit gate can be improved.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening/closing control device for an entry/exit gate that determines whether a person passing through the gate is an authorized person or an unauthorized person and automatically controls the opening and closing of the door.

0002

2. Description of the Related Art This type of entrance/exit gate includes, for example, an automatic ticket gate at a station. An automatic ticket gate has a pair of doors, each of which rotates in a horizontal direction, on the exit side of a pair of ticket gate main bodies that are installed parallel to each other. In addition, a ticket slot is provided in one of the ticket gate bodies, and multiple rows of optical sensors consisting of, for example, a projector and a light receiver arranged facing each other are installed from the entrance side to the exit side of the pair of ticket gate bodies. The system is configured to detect people passing by.

When a person passing by inserts a ticket into the ticket slot, it detects that the ticket has been inserted, determines whether the ticket is correct or not, and opens the door if the ticket is correct. Drive to let passers pass. If the ticket is fraudulent, the door will be closed to prevent the passenger from passing, and an alarm will be issued to alert the passerby. Even when an optical sensor detects a passer even though insertion of a ticket is not detected, it is determined that the passer is an unauthorized passer and the door is closed to prevent the passer from passing.

0004

By the way, the door installed in such an entrance/exit gate is a mechanism for closing the passage and alerting unauthorized persons to the entrance/exit gate. However, they must not make any movements that may cause injury to those passing by. Also,
Because of the emphasis on controlling unauthorized passers, sudden opening/closing movements that may impede the passage of legitimate passers in a hurry or cause alarm to passers should be avoided as much as possible. .

However, in conventional door opening/closing control for entry/exit gates, the door is opened and closed at a constant speed regardless of the form of the person passing through the gate, such as the speed or position of the person passing through. The mode of passage was not considered at all. Therefore, if the door opening/closing speed is set too fast, consideration will not be given to the people passing through, and conversely,
If the door opening/closing speed is set to be too slow, the function of preventing unauthorized persons from passing through the door will be insufficient.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a door opening/closing control device for an entrance/exit gate that can realize optimal door opening/closing control according to the form of passage of a person passing through the gate.

[0007]

[Means for Solving the Problems] Therefore, the present invention has the following features:
As shown in Figure 2, the door opening/closing control of the entry/exit gate determines whether a person passing through the gate is a legitimate passer or an unauthorized passer, and controls the opening/closing of the door provided on the exit side of the gate based on the result of this determination. The device includes: a passer position detecting means for detecting the position of a passer who has entered the gate; a passer speed detecting means for detecting a passing speed of the passer who has entered the gate;
A determination means for determining whether a person passing through a gate is an authorized passer or an unauthorized passer; a door angle detection means for detecting the opening/closing angle of the door; and detection information and determination from each of these detection means and determination means. The control means performs fuzzy inference based on the information and controls the opening/closing direction and opening/closing speed of the door.

[0008]

[Operation] In this configuration, when a person passing through the gate enters the gate, the person passing the position detecting means and the person speed detecting means detect the position and the passing speed of the person who has entered the gate. Further, the determining means determines whether the person passing through the gate is a legitimate passer or an unauthorized passer. Further, the door angle detection means detects the opening/closing angle of the door at this time. Then, the control means performs fuzzy inference based on the detection information and judgment information from each of the detection means and the judgment means, and controls the opening/closing direction and opening/closing speed of the door suitable for the passage form of the person passing through.

[0009] By doing this, it becomes possible to appropriately control the opening/closing speed and direction of the door according to the passing form such as the passing speed and position of the person passing through, thereby improving the performance and reliability of the entrance/exit gate. become.

0010

[Embodiment] Hereinafter, an embodiment in which the present invention is applied to an automatic ticket gate will be explained based on the drawings. In FIGS. 2 and 3 showing the schematic configuration of the device of this embodiment, the automatic ticket gate serving as the entrance/exit gate of this embodiment has a pair of ticket gate main bodies 1A installed parallel to each other along the passage direction of the ticket gate. , 1B, a pair of doors 2A each rotate horizontally.
, 2B are provided. On the top surface of one ticket gate main body 1A, a ticket slot 3 for inserting a ticket is provided on the entrance side, and a ticket takeout port 4 is provided in front of the door attachment part. Further, a light emitter 5A is provided on the side surface of the ticket gate main body 1A, and a light receiver 5B is provided on the side surface of the other ticket gate main body 1B facing the light projector 5A. The incoming light from the floodlight 5A is blocked, and these constitute an optical sensor 5 that detects a person passing through the ticket gate. The optical sensor 5 is
N pieces (for example, n=10) are arranged at predetermined intervals from the entrance side to the door attachment part. Then, the detection signals of these plurality of optical sensors 5-1 to 5-n are transmitted, for example, to the ticket gate main body 1B.
It is input to the control unit 7 built in.

In addition to the detection signals from the optical sensors 5-1 to 5-n, the control unit 7 also includes a ticket detection circuit 8 for detecting that a ticket has been inserted into the ticket slot 3. Detections from the ticket determination circuit 9 that determines whether the ticket is a genuine ticket or a fraudulent ticket, and the angle sensor 10 as a door angle detection means that detects the open/closed states of the doors 2A and 2B, that is, the angle θ (shown in FIG. 2). A signal is being input.

The control unit 7 includes a light sensor 5-
Based on the detection signals from 1 to 5-n, the position of the passer-by is determined by which position the optical sensor detects the passer-by, i.e., the distance x from the door attachment part to the passer-by (as shown in Figure 2).
The optical sensor 5-1 detects the movement of a passing person.
The speed of the passing person is determined based on the time interval of signal input from ~5-n. Then, based on the position information and speed information of the passerby, information on whether or not the ticket has been inserted, information on whether the ticket is correct or not, and door angle information, the door 2A is selected according to the flowchart shown in FIG. , 2B, and generates a drive control output to the motor 11 or brake 12 that operates the driving or braking of the doors 2A, 2B. Here, the optical sensors 5-1 to 5-n correspond to a passing person position detection means and a passing person speed detection means, and the control unit 7 corresponds to a control means.

Next, door opening/closing control of the apparatus of this embodiment will be explained based on the flowchart of FIG. First, in step 1 (indicated by S1 in the figure and the same applies hereinafter), the distance x (position) and velocity v of the passer 6 from the door are determined based on the input signals from the optical sensors 5-1 to 5-n, and the angle sensor The door angle θ from 10, whether or not a ticket has been inserted from the ticket detection circuit 8, and ticket judgment from the ticket judgment circuit 9 are read.

In step 2, which control mode is selected from among a plurality of preset control modes is determined based on the information read in step 1. Here, a plurality of preset control modes will be explained. In this embodiment, the modes of passage of passersby are classified into, for example, four types, and the control mode is set according to each mode.

In other words, a point in time when a ticket is inserted and before it is determined whether the ticket is correct or not (control mode ■), a point in time when a ticket is not inserted and before it is judged whether the passer is correct or incorrect (control mode ■), or a valid passer. Four control modes are set: a point in time when it is determined that the person is an unauthorized person (control mode ■) and a point in time when it is determined that the person is an unauthorized passer (control mode ■). Here, the determination of an unauthorized passer is made if the inserted ticket is fraudulent or if the passer enters a position where the ticket cannot be inserted unless the passer returns without inserting the ticket. Therefore, the determining means includes the optical sensors 5-1 to 5-n, the ticket detection circuit 8, the ticket determining means, and the control unit 7. The position where the ticket cannot be inserted unless the passenger returns is approximately determined and preset by the position of the ticket slot 3 and the length of the person's arm.

In step 3, fuzzy inference is executed from the determination result in step 2 based on the rules for fuzzy inference determined for each control mode determined in step 2, and door opening/closing is performed in accordance with the form of passage of the person passing through. The voltage applied to the motor 11 or the operation of the brake 12 for control is determined. This fuzzy inference will be explained.

In this embodiment, the distance x from the door of the person passing through
, the degree of matching with respect to the rules defined for each control mode ■ to ■ ■ as shown below, for example, using the membership function of the fuzzy set for the passer speed v, the door angle θ, and the amount of change ΔE of the motor applied voltage. Then, the amount of change in motor applied voltage ΔE or brake operation is determined.

Note that the doors 2A and 2B move in the path opening direction when the voltage applied to the motor is positive (+), and move in the direction of opening the passage when the voltage applied to the motor is positive (-).
), it is assumed that the door moves in the direction of closing the passage, and when the applied voltage value is large, the operating speed of the door is fast. Further, when the angle is 0°, it is fully open, and when the angle is 70° (not necessarily 70°), it is fully closed. Furthermore, a position at a distance x0 from the door is determined as a position where it is impossible to insert a ticket unless the user returns, and this distance is used as a reference for Z in the membership function regarding distance x.

Next, examples of rules for each control mode (1) to (2) will be shown. Rules for control mode ■ (initial applied voltage of motor is 0) (1-1) If x is PB and θ is PB, ΔE is PS. This means that if the door is closed when the ticket is inserted, a small amount of voltage is applied to the motor to slowly start opening the door.

Rules for control mode ■ (initial applied voltage of motor is 0) (2-1) If x is Z and θ≦PS, ΔE is N
B. This means that if the door is open when a passer enters the distance x0 without inserting a ticket, a large negative voltage is applied to the motor to quickly close the door. Rules for control mode ■ (When determining mode ■, change the applied voltage value to E
(Set to 0 (>0)) (3-1) If x≦Z, v≧PM, and θ≧PM, ΔE is PB.

(3-2) If x≧Z, v≦PM and θ≦PM, ΔE is Z. Here, the former is a regular passer who is trying to pass through in a hurry, and if the door opening is small, the applied voltage is increased to open the door quickly, and the latter is a regular passer who is trying to pass slowly. If the opening degree of the door is large, it means that the door is opened slowly with the same applied voltage value without changing the applied voltage.

[0022] Control mode ■ (set the applied voltage value to Ec < 0) at the time it is determined to be mode ■) (4-1)
If x≦Z and v≧PM and θ≦PM, ΔE is N
B. (4-2) If x≧Z, v≦PS and θ≧PM, ΔE is Z. (4-3) If x is NB and v is PS and θ≧PM
If so, turn on the brake.

Here, (4-1) means that if the opening degree of the door is large due to an unauthorized customer trying to pass through quickly, the applied voltage is increased to quickly close the door, and (4-2) means that the door is closed quickly by increasing the applied voltage. If the opening degree of the door is small due to an unauthorized customer passing slowly, it means that the applied voltage is not changed and the door is closed slowly at the same voltage value. If the door is not fully closed yet, this means giving up on closing the door and activating the brake to fix the door at that opening position.

[0024] Each of the above-mentioned rules is an example.
It is not limited to this. Then, from the degree of matching for each rule in the determined control mode, the amount of change ΔE in the voltage applied to the motor is determined using, for example, Mandani's method, and the voltage value E applied to the motor is set as E=E′+ΔE. calculate. Here, E' is the voltage value that has been applied up to that point.

In step 4, a drive output for the motor or brake is generated based on the determination in step 3. In step 5, it is determined whether the door opening/closing operation is completed or not, and the processes of steps 1 to 4 are repeated until the door opening/closing operation is completed. In addition, in the control mode (3) of step 3, the operation of the motor 11 and the brake 12 is selected from two,
Priority is given to control with a greater degree of matching obtained from each rule. That is, the matching degree of ΔE and the matching degree of brake ON are calculated from each rule, and if the matching degree with respect to ΔE is large, the voltage change amount ΔE at that time is calculated.
The voltage applied to the motor 11 is calculated based on the brake 12.
is OFF. Furthermore, if the matching degree of the brake ON is large, the motor is not driven as a brake operation, and both brakes are not activated together.

[0026] In this way, by performing fuzzy inference based on various information such as whether a passer has inserted a ticket, the speed of the passer, and the position of the passer, the opening/closing control of the door is performed. For regular passers-by, the door can be opened slowly for those who are passing slowly, and the door can be opened quickly for those who are in a hurry. In addition, we warn unauthorized passengers by closing the door slowly if they accidentally insert the wrong ticket, and if they deliberately try to pass through in a hurry, we close the door depending on the person's position. You can quickly close the door or stop the door closing operation to fix the door.

[0027] Therefore, it is possible to appropriately control the speed of opening and closing the door, etc., depending on the type of passage of the person passing by, and it is possible to warn unauthorized customers without injuring passersby, so that they can pass through quickly. It does not obstruct the passage of authorized persons. Furthermore, it is possible to prevent passersby from becoming wary due to sudden door opening/closing operations. In addition, in this example,
Although the applied voltage value was used as a control element for driving the door to open and close, frequency may also be used. Further, in this embodiment, an automatic ticket gate is shown as an example of an entry/exit gate, but the invention is not limited to this, and any entry/exit gate with a mechanism that automatically opens and closes the door when a predetermined ticket is inserted It goes without saying that the present invention can also be applied to.

[0028]

As explained above, according to the present invention, fuzzy reasoning is used to control the opening/closing of the entry/exit gate, which automatically opens/closes the door when a ticket is inserted. It is possible to control the opening and closing of doors in a timely manner that best suits the configuration. Not only can you close the door to alert unauthorized passersby, but you can also alert passersby by rapidly opening and closing the door without interfering with the passage of legitimate passersby who are in a hurry. There is no risk of giving it away. Furthermore, the performance of the entrance/exit gate can be significantly improved, such as eliminating the risk of injury to passersby.

[Brief explanation of the drawing]

[Fig. 1] Block configuration diagram explaining the configuration of the present invention

[Figure 2
] A simplified configuration diagram of an embodiment of the entrance/exit gate of the present invention

[Figure 3
】Block diagram showing the internal configuration of the ticket gate main body of the above embodiment

[Fig. 4] Flowchart of door opening/closing control in the embodiment same as above.

[
Figure 5: Diagram showing membership functions used for fuzzy inference in the above embodiment

[Explanation of symbols]

1A　Ticket gate machine body 1B Ticket gate machine body 2A Door 2B door 3 Ticket slot 5. Optical sensor 6 Passers 7 Control unit 8 Ticket detection circuit 9 Ticket judgment circuit 10 Angle sensor 11 Motor 12 Brake

Claims (1)

[Claims] [Claim 1] Door opening/closing control of an entrance/exit gate that determines whether a person passing through the gate is a legitimate passer or an unauthorized passer, and controls opening/closing of a door provided on the exit side of the gate based on the result of this determination. The device includes a passer position detecting means for detecting the position of the passer who has entered the gate, a passer speed detecting means for detecting the passing speed of the passer who has entered the gate, and a passer speed detecting means for detecting the passing speed of the passer who has entered the gate. A determination means for determining whether a person is passing through or an unauthorized person; a door angle detection means for detecting the opening/closing angle of the door; and fuzzy inference is performed based on the detection information and determination information from each of these detection means and determination means. 1. A door opening/closing control device for an entrance/exit gate, comprising: a control means for controlling the opening/closing direction and opening/closing speed of the door.