JP4526897B2 - Access control gate device - Google Patents

Description

  The present invention relates to an entry / exit management gate device for managing the entry / exit of a person, and more particularly, to an entry / exit management gate device with an enhanced passerby detection function.

  The entrance / exit management gate device manages the user's traffic by controlling the opening and closing of the door.For example, the entrance / exit management gate device determines whether the user can pass based on data presented by the entering / exiting user, and based on the determination result, There is one that controls opening and closing of a door provided in the gate device body. As such an access control gate device, for example, there is an automatic ticket gate at a station.

For example, in the case of a normal open type, the conventional automatic ticket gate permits the passage with the door as it is and determines that the ticket is valid, and the ticket is invalid. If it is determined that the door is closed, the door is controlled to be closed, and the passage is blocked. The sensor confirms that there is no user in the passage, and the door is driven to the original open position. In the case of the normally closed type, when it is determined that the ticket is valid, the door is opened and permitted to pass. When the user detects that the ticket has passed, the door is driven to the original closed position, and the ticket is Is invalid, the door is left as it is and the passage is blocked (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 11-328452

  By the way, in an access control gate device such as an automatic ticket gate, considering the safety of the user, it is necessary to check the presence / absence of the user in the aisle and control the opening / closing of the door as described above. An optical sensor that projects a light beam in a direction crossing the passage and detects a user based on a light receiving state of the light beam is provided on the side surface. A plurality of optical sensors are arranged along the passage direction, and are arranged at different heights so as to be surely detected even when users of different heights such as adults and children pass.

However, conventionally, it is necessary to arrange the photosensor avoiding the door so that the detection function of the photosensor is not disturbed by the door provided on the side surface of the gate device main body like the photosensor, and the arrangement of the photosensor is limited, There is a problem that the optical sensor cannot always be arranged at an appropriate position. Further, the width in the height direction of the door cannot be increased so as not to impair the detection function of the optical sensor, and there is a possibility that the door may be jumped in and out illegally.
The present invention has been made paying attention to the above-mentioned problems, and it is possible to enhance a detection function of a passerby by an optical sensor, and an entrance / exit management gate capable of enhancing a function of preventing illegal traffic such as jumping over a door. An object is to provide an apparatus.

  Therefore, the invention according to claim 1 is an openable / closable door for managing the passage of a user, and an optical sensor that projects a light beam in a direction crossing the passage and detects a passerby based on a light receiving state of the light beam. In the gate management gate device provided on the side of the gate device body facing the passage, the door is provided with an opening through which the light beam of the photosensor is transmitted.

  With this configuration, the light beam of the optical sensor can be transmitted through the opening of the door regardless of the door position. Thereby, it becomes possible to arrange | position an optical sensor in an appropriate position irrespective of a door position. Further, even if the width in the height direction of the door is increased, the detection function of the optical sensor is not disturbed by the door.

Specifically, as in claim 2, the opening may be arranged so that the light beam is transmitted when the door is in the rotation stop position.
With such a configuration, when the door is in the open position or the closed position, the light beam of the optical sensor can pass through the opening and reliably detect a passerby.

  The shape of the opening may be a circular shape as in claim 3, an elliptical shape as in claim 4, or a long hole shape that is long along the passage as in claim 5.

The invention according to claim 6 further comprises determination means for determining the presence or absence of a passer-by based on the sensor output of the optical sensor, and the determination means determines that there is no passer-by regardless of the output state of the optical sensor while the door is being driven. It was set as the structure to do.
In such a configuration, the determination unit determines that there is no passerby regardless of the sensor output of the optical sensor while the door is being driven from open to closed or from closed to open. Thereby, when the light beam is temporarily interrupted by the door while the door is driven, it is not erroneously determined that there is a passerby.

According to a seventh aspect of the present invention, the door has a structure in which a core material is covered with a cushioning material, and the cushioning material is covered with a surface covering material, and a bushing material is provided at the peripheral edge of the opening.
In such a configuration, by providing the bushing material at the periphery of the opening, the light beam of the optical sensor can be reliably transmitted, and the fixing process of the surface covering material or the like at the periphery of the opening can be facilitated. It becomes like this.

  According to the access control gate device of the present invention, the door is provided with the opening that transmits the light beam of the optical sensor for detecting the passerby, so that the passerby on the side surface of the gate device body can be reliably detected. An optical sensor can be arranged on the optical sensor, and the passer detection function of the optical sensor can be improved. Moreover, since the door itself can be enlarged in the height direction, the function of preventing illegal traffic such as jumping can be improved. Furthermore, by providing an opening in the door, even if the door is enlarged, an increase in weight and air resistance can be suppressed, so that the door opening / closing ability similar to the conventional one can be maintained.

  Also, by providing a bushing material at the peripheral edge of the opening formed in the door, the peripheral edge of the opening can be made into a clean shape without irregularities, so that the light beam can be transmitted reliably, and the peripheral edge of the opening It is possible to prevent erroneous detection of the optical sensor due to unevenness of the surface.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 are views showing a first embodiment of an access control gate device according to the present invention. FIG. 1 is a plan view, and FIG. 2 is one of a pair of gate device bodies constituting the access control gate device. It is the side view seen from the channel | path side of the gate apparatus main body.

  In the figure, the access control gate device of the present embodiment comprises a pair of gate device bodies 1A and 1B provided facing each other across the passage P as shown in FIG. The gate device main body 1A has a card insertion slot 2 on the entry side of the passage P (assuming passage in the direction of the arrow in the figure). Further, the upper surface of the gate device main body 1A is provided with a card outlet 3 for taking out a card opposite to the card insertion slot 2, a display 4 covered with a cover, and a display lamp 5 for displaying illegal passage. The gate device main body 1B has the same configuration as the gate device main body 1A, and is arranged such that the card insertion slot 2 is on the entry side when the direction opposite to the arrow in FIG. Yes.

On the side surface of the gate device body 1A on the side of the passage P, there are provided human detection units 7 to 9 made up of transmissive photosensors at three positions with intervals in the height direction. The upper human detection unit 7 has six light-emitting elements 7a constituting a light-receiving element and a transmissive optical sensor provided on the other gate device body 1B with a predetermined interval from the entry side to the advance side of the passage P. The middle human detection unit 8 includes a light receiving element provided in the other gate device body 1B and a transmission type optical sensor 3 with a predetermined interval from the entry side to the advance side of the passage P. The lower human detection unit 9 includes light emitting elements 8a to 8c, and includes a light receiving element provided on the other gate device body 1B and one light emitting element 9a constituting a transmissive optical sensor. For example, when the upper human detection unit 7 detects a person, the user is determined to be an adult, and when the upper human detection unit 7 does not detect and the middle human detection unit 8 detects, the user is used. The person is judged to be a child (child). When only the lower human detection unit 9 detects, it is determined that the person is an unauthorized passer. In the figure, reference numerals 7a 'to 7f', 8a 'to 8c', and 9a 'denote light receiving elements constituting the light emitting element on the other side of the gate device main body 1B and the transmissive optical sensor. In the following description, each light emitting element of the human detection unit will be described as a transmissive optical sensor.
Since the configuration of the side surface of the other gate device body 1B on the passage side is the same as that of the gate device body 1A, description thereof is omitted.

  Doors 10 and 11 that open and close the passage P, which is a feature of the present invention, are provided on the side surface of the gate device body 1A on the passage P side. The doors 10 and 11 forming a pair of the gate device main bodies 1A and 1B are configured to be integrally driven and controlled by a door drive control unit 51 described later to open or close the passage. The doors 10 and 10 are in the normally open position when the entrance / exit gate device is a normally open type or a bidirectional type, and in the case of a normally closed type, the doors 10 and 10 are for users entering from the direction opposite to the arrow direction in FIG. Thus, the door on the entrance side is normally in the closed position shown by the solid line in FIGS. Similarly, the doors 11 and 11 are normally in the closed positions indicated by chain lines in FIG. 1 when the access control gate device is a normally closed type, and opposite to the arrow direction in FIG. It becomes a door on the exit side for a user entering from the direction, and is normally in the open position shown by a solid line in FIGS.

  The doors 10 and 11 are formed with a width in the height direction larger than that of a normal door so as to prevent illegal traffic such as jumping, and for example, circular holes 10a to 10c and 11a as openings along the height direction. To 11c are provided. The middle holes 10b and 11b are provided at positions corresponding to the transmission optical sensors 7b and 7e of the upper human detection unit 7 described above. When the doors 10 and 11 are in the open position, the transmission optical sensor 7b is provided. , 7e pass through the holes 10b and 11b so that the human detection function is not hindered.

The structure of the hole part of the door of this embodiment is shown in FIG. Since the doors 10 and 11 have the same structure, the door 10 is shown and described in FIG.
In FIG. 3, the door 10 has a structure in which a core material 10A such as a steel plate is covered with a cushion material 10B such as urethane, and further the cushion material 10B is covered with a surface covering material 10C such as leather, and the periphery of the hole 10a. A bushing material 10D formed of a synthetic resin material or the like is provided at the portion, and the surface covering material 10C at the peripheral edge of the hole 10a is fixed.

FIG. 4 is a configuration diagram of the drive mechanism of the doors 10 and 11. Since the drive mechanisms of the doors 10 and 11 are the same, the door 10 will be described as an example here.
In FIG. 4, in the door drive device 20 of the present embodiment, a speed reducer 23 is attached to a sub bracket 22 attached to the lower part of a bracket 21, and a DC motor 24 serving as a drive source for the door 10 is disposed on the speed reducer 23. Further, an electromagnetic brake 25 is disposed. Further, blocks 28 and 29 having bearings 26 and 27 attached thereto are fixed to the upper end portion and the lower end portion of the bracket 21, respectively, and the door shaft 30 is pivotally supported by the bearings 26 and 27 so as to be rotatable in the vertical direction. The door 10 is detachably fixed to the door shaft 30.

A belt transmission mechanism including a pulley 31 attached to the output shaft 23a of the speed reducer 23, a pulley 32 attached to the lower end of the door shaft 30, and a timing belt 33 stretched over the pulleys 31 and 32, In this configuration, the rotational driving force of the DC motor 24 is transmitted to the door shaft 30.
The motor is not limited to a DC motor, and may be another motor such as a servo motor. Further, the power transmission function for transmitting the power of the motor to the door shaft 30 is not limited to the belt transmission mechanism, and may be one using a link or a cam shown in Patent Document 1 or the like.

  A rotary encoder 35 for detecting the door position is fixed to the sub bracket 34 attached to the upper portion of the bracket 21. A belt transmission mechanism comprising a pulley 36 attached to the rotary shaft 35 a of the rotary encoder 35, a pulley 37 attached to the upper end of the door shaft 30, and a timing belt 38 spanning the pulleys 36, 37, allows the door to move. The rotary encoder 35 detects the amount and direction of rotation of the shaft 30.

  The rotary encoder 35 is a conventionally known one, and generates a two-phase pulse signal proportional to the amount of rotation of the rotary shaft 35a. The two-phase pulse signals are adjusted so that the phases are shifted from each other by a predetermined amount. When the rotation direction of the rotation shaft 35a is reversed, the phase is reversed, so that not only the rotation amount but also the rotation direction can be determined.

  A door opening detection sensor 40 and a door closing detection sensor 41 for detecting the opening and closing of the door as shown in FIGS. 5 and 6 are fixed to the sub bracket 34, respectively. The door opening detection sensor 40 includes a light emitting element 40a and a light receiving element 40b that are arranged to face each other with a gap therebetween. The plate member 42 is moved by the rotation of the rotary shaft 35a of the rotary encoder 35, and the light beam from the light emitting element 40a is transmitted. The door opening detection output is generated when the plate-like member 42 blocks the door. Similarly, the door closing detection sensor 41 includes a light emitting element 41a and a light receiving element 41b that are arranged to face each other with a gap therebetween, and outputs a door closing detection output when the light beam from the light emitting element 41a is blocked by the plate-like member 42. This is a configuration that occurs.

  As shown in FIG. 6, the door opening detection sensor 40 and the door closing detection sensor 41 are arranged with an angular interval of 70 ° in the circumferential direction of the rotating shaft 35a, for example. Thereby, when the door open position is set to 0 °, for example, the position where the door 10 is rotated by 70 ° from this is the door closed position. The absolute position of the door 10 can be detected by adding / subtracting the pulses of the rotary encoder 35 starting from 0 ° (door open position).

FIG. 7 is a block diagram illustrating an input / output relationship of a determination unit that determines the presence or absence of a passer-by based on the sensor output of the transmissive optical sensor.
In FIG. 7, sensor outputs from the transmission optical sensors 7 a to 7 f, 8 a to 8 c, and 9 a of the human detection units 7 to 9 are input to the determination unit 50 as a determination unit, and based on these sensor outputs. Then, it is determined whether or not a passerby exists in the passage P, and the determination result is output to the motor drive control unit 51. Further, the determination unit 50 takes in the sensor output of the transmission type optical sensor disposed at a position where the light beam is temporarily blocked during the rotation of the door according to the motor control state of the motor drive control unit 51. Control.

  The motor drive control unit 51 controls opening and closing of the doors 10 and 11 based on reading data of a reader / writer (not shown) that reads data of a card inserted into the card insertion slot 2 and a determination result of the determination unit 50. If it is determined to be driven, the motor 24 is driven. Further, when the motor 24 is driven, the rotational speed of the motor 24 is controlled according to the door position based on the output state of the door open / close detection sensors 40 and 41, the rotary encoder 35, etc., and the door speed is controlled to be accelerated / decelerated. To do. Specifically, the motor speed is accelerated and controlled so that the door speed gradually increases at the beginning of the door rotation, and thereafter the motor speed is controlled to be constant so that the door speed becomes constant. Controls the motor speed to reduce the door speed gradually. Thus, by reducing the door speed at the end of the rotation of the door, the impact when the passerby contacts the door can be reduced, and the safety of the passerby can be increased. Further, since the electromagnetic brake 25 is ON-controlled at the door rotation stop position to hold the doors 10 and 11 at the rotation stop position, the holding force can be set to an appropriate value by adjusting the electromagnetic brake force. It has a configuration.

  Next, the sensor output capturing process of the transmissive optical sensor arranged at the door position of the determination unit 50 in the access control gate device of this embodiment will be described with reference to the flowchart of FIG. In the following, a case will be described in which the door 11 in the normally closed position is driven on the assumption that the access control gate device is a normally closed type and the user passes in the direction of the arrow in FIG.

In step 1 of FIG. 8 (indicated by S1 in the figure, the same shall apply hereinafter), the number n of transmissive photosensors that temporarily block the light beam when the door 11 is driven is set. In the case of this embodiment, only the transmissive optical sensor 7b of the human detection unit 7 is provided, and n = 1.
In step 2, the determination unit 50 inputs the sensor output of the transmissive optical sensor 7b.
In step 3, it is determined whether or not the door 11 is being driven based on the output state of the door drive control unit 51. If the door 11 is stopped at the rotation stop position, the process proceeds to step 4. Proceed to step 5.
In step 4, the sensor output input in step 2 is set as the output of the transmissive optical sensor 7b and taken in as it is.
In step 5, regardless of the sensor output state input in step 2, the output of the transmissive optical sensor 7 b is set and captured as no passer detection.

  In step 6, it is determined whether or not the sensor number n is MAX. Specifically, it is determined whether or not the number of sensors set in step 1 has been reached. In other words, it is determined whether or not the setting in step 4 or 5 has been completed for all the transmissive optical sensors whose light beams are temporarily blocked when the door 11 is driven. If the determination is YES, the process is terminated, and if the determination is NO, the process proceeds to step 7, returns to step 2 with n ← n + 1, repeats the processes of steps 2 to 6 and is temporarily performed when the door 11 is driven. A sensor output setting process is executed for another transmissive optical sensor in which the light beam is blocked. In the present embodiment, since the number n of sensors set in step 1 is 1, MAX is 1, the determination in step 6 is YES, and the process ends.

According to the access control gate device of the first embodiment, the arrangement of the transmissive optical sensors for detecting passersby of different heights can be freely made without being affected by the doors 10 and 11, so that the gate device body The transmissive optical sensor can be disposed at an appropriate position where the passersby on the side surfaces of the 1A and 1B can be reliably detected, and the passer-by detection function by the transmissive optical sensor can be improved. Further, the shape of the doors 10 and 11 is not limited, and the doors 10 and 11 can be enlarged in the height direction. Therefore, the function of preventing illegal traffic such as jumping can be improved, and the doors 10 and 11 can be enlarged. However, an increase in weight and air resistance can be suppressed, and the same door opening / closing capability as before can be maintained.
The opening positions of the doors 10 and 11 are determined by the relative positional relationship with the arrangement of the human detection units 7 to 9 of the gate device main bodies 1A and 1B. If it is long downward, an opening may be formed at a door position that transmits the light beam of the transmission type optical sensor of the human detection unit 8.

  Further, since the bushing material 10D is provided at the peripheral portions of the holes 10a to 10c and 11a to 11c, the peripheral portions of the holes 10a to 10c and 11a to 11c can be formed into a beautiful shape without irregularities, and the holes 10a to 10c, 11a. It is possible to prevent erroneous detection of the transmissive optical sensor due to irregularities on the peripheral edge of ˜11c.

Next, a second embodiment of the present invention will be described.
9 and 10 show a second embodiment of the present invention, FIG. 9 is a plan view, and FIG. 10 is a side view as viewed from the passage side of the gate device main body 1A. The same elements as those in the first embodiment shown in FIG. 1 and FIG.
The second embodiment of FIGS. 9 and 10 differs from the first embodiment only in the size of the doors 10 and 11 and the number of openings, and the holes 10 a to 10 f in two rows in the lateral direction of the doors 10 and 11. 11a to 11f are formed.

  In the access control gate device of this embodiment, when the doors 10 and 11 are driven, the number of optical sensors that temporarily block the light beam is two, and the transmission optical sensor 7e, 7f, which are transmissive optical sensors 7a and 7b for the door 11.

Therefore, in the case of the second embodiment, in the flowchart of FIG. 8, n = 2 is set in step 1, and when n = 2 in step 6, the determination is YES and the processing is ended. The operation of other steps is the same as that of the first embodiment.
The access control gate device of the second embodiment also has the same operational effects as the first embodiment.
In the case of the second embodiment, two rows of holes are provided in the horizontal direction according to the arrangement of the photosensors, but one transmission hole is elongated in the horizontal direction, and the two transmissive photosensors 7e and 7f and the transmissive photosensor 7a are provided. , 7b.

In each of the above-described embodiments, the hole shape is circular. However, the hole shape is not limited to this, and may be an elliptical shape or a long hole in the lateral direction. The light beam of the optical sensor transmits and reaches the other gate device main body side facing. Any shape may be used as long as the shape is suitable. Further, the opening is not limited to a hole, and may have a notch shape in which a notch is cut laterally from the front end of the door in correspondence with the sensor position, and the door is formed in a frame shape so that the opening other than the peripheral edge of the door is the opening. You may do it.
The shape of the door may be the same size as a door of a conventional automatic ticket gate. In this case as well, an opening may be provided at the door position corresponding to the position where the transmission optical sensor is arranged.
It goes without saying that the access control gate device of the present invention can be applied to any gate device that needs to manage access, such as an automatic ticket gate, as well as a gate device that manages access to places with high security.

The top view which shows 1st Embodiment of the access control gate apparatus of this invention Side view of the gate device body of the same embodiment Sectional view showing the structure of the hole periphery of the door Configuration diagram of door drive mechanism Configuration diagram of door open / close detection sensor The figure which shows the arrangement | positioning relationship of a rotary encoder, a door open detection sensor, and a door close detection sensor Block diagram explaining the input / output relationship of the decision unit Time chart explaining sensor output capture processing The top view which shows 2nd Embodiment of the access control gate apparatus of this invention Side view of the gate device body of the same embodiment

Explanation of symbols

1A, 1B Gate device body 7, 8, 9 Human detection units 7a-7f, 8a-8c, 9a Light emitting element (transmission type optical sensor)
10, 11 Door 10a-10f, 11a-11f Hole (opening)
10A Core material 10B Cushion material 10C Surface coating material 10D Bushing material 50 Determination unit 51 Door drive control unit

Claims (7)

The gate device main body facing the passage includes an openable / closable door for managing the passage of the user and an optical sensor that projects a light beam in a direction crossing the passage and detects a passerby based on a light receiving state of the light beam. In the access control gate device provided on the side,
An entrance / exit management gate device, wherein the door is provided with an opening through which the light beam of the optical sensor is transmitted.   The access control gate device according to claim 1, wherein the opening is arranged so that the light beam is transmitted when the door is in a rotation stop position.   The access control gate device according to claim 1 or 2, wherein the opening has a circular shape.   The access control gate device according to claim 1 or 2, wherein the opening has an elliptical shape.   The access control gate device according to claim 1 or 2, wherein the shape of the opening is a long hole shape that is long along the passage.   2. A structure for determining presence or absence of a passer-by based on a sensor output of the optical sensor, wherein the determination unit is configured to determine that there is no passer-by regardless of the output state of the optical sensor while the door is being driven. The access control gate apparatus as described in any one of -5.   The door has a structure in which a core material is covered with a cushioning material, the cushioning material is covered with a surface covering material, and a bushing material is provided at a peripheral edge of the opening. The access control gate device described in 1.

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