JP3435289B2 - Human detection device for automatic ticket gates - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic ticket gate human detection apparatus for detecting a user in a ticket gate passage of an automatic ticket gate.

[0002]

2. Description of the Related Art FIG. 8 shows a conventional human detection device for an automatic ticket gate (hereinafter referred to as a human detection device).
It is a front view of the automatic ticket gate main body (hereinafter referred to as the main body) viewed from the side of the ticket gate passage a.

In the figure, S, S ... Are human detectors composed of photoelectric elements, which face a main body b and a main body (not shown) installed across the ticket gate a of the main body b. Further, they are provided at a predetermined interval from each other along the passage direction of the ticket gate passage. These human detectors S, S ...
It is provided on the automatic ticket gate side and on the detector mounting bar b ′ provided so as to project upward from the upper surface of the main body b. The human detectors S, S ... Provided on the detector mounting bar b'are provided to distinguish between an adult and a child, and the human detectors provided on the detector mounting bar b '. When human detection is performed by the human detectors S, S ... On the main body b side without being detected by S, S ..., The detected user is determined to be a child user.

These human detectors S, S ... Are formed in the entrance detection zone Z1, the central detection zone Z2, and the exit detection zone Z3 in this order from the entrance side of the ticket gate a. Passage detections P1 and P2 are formed.

In the automatic ticket gate having the above structure, the insertion slot 1
When a valid ticket is inserted from the door, the door D1 is opened (as it is when the main body b is a normally open type), the passage of the user is permitted, and the ticket that needs to be returned is output to the outlet 2. It is discharged and returned.

On the other hand, an invalid ticket such as the expiration of the valid period is inserted into the insertion slot 1.
If it is inserted into the central detection zone Z2, the door D1 will be closed when it is inserted into the central detection zone Z2. It is configured.

When the user is detected in the entrance detection zone Z1, it is determined that the user has entered the ticket gate passage a, and after the user is detected in the exit detection zone Z3, it is no longer detected. At this time, the user is determined to have advanced from the ticket gate a. Further, when the passage detections P1 and P2 are detected, it is determined that the user has passed the point.

As described above, the main body b is constructed so that the user and the ticket can be associated with each other by the detection outputs of the detection zones Z1 to Z3 and the passage detections P1 and P2.

[0009]

However, since the above-described conventional human detection device uses the photoelectric element type human detector, it is troublesome that wiring is required between the opposing main body. However, when the light is blocked by the luggage carried by the user, there is a disadvantage that an erroneous detection occurs and the user cannot match the ticket.

Therefore, the present invention has been made to solve the above-mentioned drawbacks, and it is an object of the present invention to detect only the user without the need for wiring equipment between the main body and the opposite main body. It is to provide a human detection device.

[0011]

In order to achieve the above object, the human detecting apparatus according to claim 1 of the present invention is arranged along the passage direction of the ticket gate of the automatic ticket gate and divides the ticket gate. Infrared rays emitted from the human body used as the detection area are detected.
Sensor means consisting of a plurality of pyroelectric sensors that are output, and a peak position by performing arithmetic processing based on the output values of each of the pyroelectric sensors.
For detecting the user in the ticket gate passage and determining the moving state of the user from the change state of the detection signal. Human detection apparatus according to claim 2 of the present invention, pyroelectric sensors multiple is characterized in that is provided a body, a detector mounting bar projecting from the upper surface of the main body upward. Human detection apparatus according to claim 3 of the present invention, together with two sets provided vertically to the body of pyroelectric sensors multiple, multiple pyroelectric sensor lower set of from reforming bill path surface to a predetermined height The detection area is defined as a detection area, and the plurality of pyroelectric sensors in the upper group are characterized by detecting areas above the detection areas of the plurality of pyroelectric sensors in the lower group. Claims of the invention
Human detection apparatus according to 4, pyroelectric sensors multiple is characterized in that provided above the break bill passage.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of an automatic ticket gate to which a human detection device according to an embodiment is applied, and the same components as those of the conventional example of FIG.

In the figure, 3 and 3'indicate pyroelectric sensors, of which the pyroelectric sensor 3 is provided toward the ticket gate passage a side at the substantially central portion of the detector mounting bar a ', and the other. The pyroelectric sensor 3'is provided on the upper part of the main body a on the side of the ticket passage. The pyroelectric sensor 3 provided above the detector mounting bar a'is for adult detection, like the conventional human detection device, and is provided below the body a. The pyroelectric sensor 3'is for detecting children.

Since the pyroelectric sensors 3 and 3'have the same structure, the pyroelectric sensor 3 will be mainly described below. The pyroelectric sensor 3 includes a plurality (eight in the illustrated example) of pyroelectric sensor elements (hereinafter, this pyroelectric sensor element is also simply referred to as a pyroelectric sensor), as shown in an enlarged view in a portion A of FIG. ) 3a to 3h
Are formed in an array type arranged in parallel along the passage direction of the ticket gate a.

As shown in FIG. 2, each of the pyroelectric sensors 3a to 3h has convex lenses 3a 'to 3h' for collecting infrared rays emitted from the human body, and the convex lenses 3a 'to 3h' collect them. The detection area to be detected is determined to be a state in which the entire area of the ticket gate passage a is divided.

The signals detected by the pyroelectric sensors 3a to 3h are amplified by the amplifier circuit 4, respectively filtered by the filter circuit 5, and taken into the arithmetic processing circuit (hereinafter referred to as MPU) 6. Is configured.

Before explaining the human detection operation of the automatic ticket gate using the pyroelectric sensors 3 and 3'having the above-mentioned structure, the principle of human detection by the pyroelectric sensors 3 and 3'is explained with reference to the pyroelectric sensor 3a shown in FIG. Description will be made by taking 3 to 3h as an example.

Now, when two users, A and B, are present in the ticket gate a, the outputs of the pyroelectric sensors 3a to 3h and the detection area of each pyroelectric sensor and the detection of the pyroelectric sensor adjacent thereto. The output value of the pseudo area area of the area overlapping the area (see the hatching in FIG. 2) is shown as in FIG. The maximum value of this output value is "8" and the minimum value is "0". Then, FIG. 3B is a graph of these output values.

The peak value of these output values is the position of the user, and the position of the peak value will change as the user A and user B move. That is, if the user A and the user B are moving, the measured value (output value) at the time t of the current measurement of a specific pyroelectric sensor is centered, and Δt seconds before the time t and Δt. A difference occurs in the measured value after a second, and the moving direction of the user can be determined from the difference.

Now, for example, the output value of the pyroelectric sensor 3a at time (measurement time) t is fp (t), and the output value Δt seconds before this time t is fp-1 (t). If the output value Δt seconds after the time t changes to fp + 1 (t), the difference Δp between the output values of the pyroelectric sensor 3a before and after the time t is as follows. Δp = fp (t) -fp (t + Δt) Δ (p + 1) = fp + 1 (t) -fp + 1 (t + Δt) Δ (p-1) = fp-1 (t)- fp −1 (t + Δt) Here, if Δ (p + 1) <0 or Δ (p-1)> 0, the user moves forward through the ticket gate passage a (the ticket gate passage a from the entrance side to the exit side. It is determined that it has moved toward). Also, △ (p + 1)
If> 0 or Δ (p-1) <0, it is determined that the user has retreated from the ticket gate a (moving the ticket gate a from the exit side to the entrance side).

If the above-mentioned Δt is made small, that is, the measurement interval is made small, the small movements of the user A and B can be captured accordingly. In addition, the above difference Δp
Focusing on the absolute value of, a large absolute value means that the user's action is fast, and a small absolute value means slow.

Next, the basic operation of detecting a user will be described with reference to the flowchart of FIG.

Now, when the user enters the ticket gate a,
The output signal (fp (t)) of each of the pyroelectric sensors 3a to 3h is M
Captured by PU6 (Yes at Step 100, Step 1)
02. Hereinafter, the step will be referred to as S. ). And MPU
6 performs arithmetic processing on the basis of the output values (fp (t + Δt)) of the pyroelectric sensors 3a to 3h captured for each Δt to obtain the peak position and detect the user position (S104, S10
6). That is, the position of the user is detected by detecting the peak position (corresponding to the detection area of the pyroelectric sensors 3a and 3e) shown in FIG. 3 (b).

Then, in the MPU 6, as described above, the detected moving direction of the user is determined from the positive / negative of the differences Δ (p + 1) and Δ (p-1) of the output values (S10).
8). Then, the predetermined processing operation of the automatic ticket gate is performed depending on how the user moves within the detection areas (blocks in the figure) of the pyroelectric sensors 3a to 3h (S).
110).

For example, if no other user is present in the ticket gate a in front of the user who has inserted a valid ticket from the insertion slot 1, the user is detected in the detection area of the pyroelectric sensor 3a. At that time, the door D1 is opened.

When a ticketless person is detected by the pyroelectric sensor 3d having a detection area in the middle of the ticket gate a, the door D is detected.
1 is closed. Further, when there is a user who enters the ticket gate passage a in the direction opposite to the ticket gate direction, that is, when the user is detected by the pyroelectric sensor 3h having the exit side of the ticket gate passage a as the detection area, it is determined that the vehicle is in the reverse entrance. The door D2 is closed after making a decision. In this way, a predetermined operation as an automatic ticket gate can be performed depending on the detection states of the pyroelectric sensors 3a to 3h.

The flow chart of FIG.
It shows an example of the control operation in the case where two tickets are inserted and two users are detected in the ticket gate a.
In such a case, one user may be a billless person or a child who does not need a ticket.

Since steps S200 to S206 in FIG. 5 correspond to steps S100 to S108 in FIG. 4, description will be made from the determination of the half-value width in step S206. The full width at half maximum here means the pyroelectric sensor 3 provided on the detector mounting bar a '.
Is determined to be a predetermined value or not, and when this value does not reach the predetermined value, it means that the user is short and the output value of the pyroelectric sensor 3 is small. Therefore, the user is determined to be a child. When it is determined that the child is a child, since the ticket can be ticketed with one ticket, the normal ticket operation is performed (No in S208).

When the half-width value exceeds the predetermined value (Yes at S208), it is determined that the user is two adults and one of them is a billless person. Therefore, in this case, the door D1 is closed, and the guidance that the vehicle cannot pass is guided through the speaker provided in the main body a or the display screen (S210).

Although not shown in FIG. 1, a TV camera capable of picking up an image of the user in the ticket gate passage a is installed, and when the unpaid person is detected, the TV camera is driven and the image pickup data is obtained. Is configured to be stored (S
212, S214). Therefore, it can be used as evidence when an unsigned person breakthrough. In addition, such T
The provision of the image pickup means including the V camera is particularly effective in the case of a doorless type automatic ticket gate.

FIG. 6 shows another embodiment of the present invention, in which the main body a'does not have a detector mounting bar. In this case, the pyroelectric sensor 3 provided on the detector mounting bar of FIG. 1 is provided above the pyroelectric sensor 3 ', and is arranged above and below the pyroelectric sensor 3', as shown in an enlarged view of a portion B of FIG. Two sets of pyroelectric sensors 3, 3'are provided. In this case, the pyroelectric sensor 3'on the lower side is almost atop the main body a'from the upper surface of the ticket gate a.
The lens 3a ′ so that the detection area extends to the upper surface of
~ 3h 'orientation is adjusted, and the upper pyroelectric sensor 3
The orientation of the lenses 3a 'to 3h' is adjusted so that the detection area is above the detection area of the lower pyroelectric sensor 3 '. Therefore, even if the detector mounting bar is omitted, it is possible to judge an adult or a child.

FIG. 7 shows still another embodiment of the present invention, which is an example in which a pyroelectric sensor 3 ″ is also provided on the ceiling F of the ticket gate a. In this case, three pyroelectric sensors 3 ″ are provided. It is possible to perform highly accurate human detection while ensuring the consistency of the pyroelectric sensors 3, 3 ', 3 ".

It is also possible to omit the pyroelectric sensors 3 and 3'on the main body a "side and simply perform human detection by using only the pyroelectric sensor 3" of the ceiling F.

[0034]

The human detection device according to the first aspect of the present invention is emitted from a human body along the passage direction of the ticket gate passage of the automatic ticket gate and dividing the ticket gate passage into a detection area.
Sensor unit that detects a plurality of pyroelectric sensors that detect infrared rays, and performs arithmetic processing based on the output values of each of the pyroelectric sensors.
And a detecting means for determining the moving state of the user based on the change state of the detection signal as well as detecting the user in the ticket passage by obtaining the peak position. It is possible to eliminate the need for wiring between and and to detect only the user, so it is possible to effectively prevent erroneous detection. Claim 2 of the present invention
When a plurality of pyroelectric sensors are provided on the main body and the detector mounting bar projecting upward from the upper surface of the main body , the human detection device can effectively discriminate between adults and children.
In the human detection device according to claim 3 of the present invention, a plurality of pyroelectric sensors are provided on the main body in two sets , and the plurality of pyroelectric sensors in the lower set are detection areas from the ticket gate passage surface to a predetermined height. , The upper set of pyroelectric sensors has a feature that the detector mounting bar can be omitted when the upper detection area of the lower pyroelectric sensors is set as the detection area. In the human detection device according to claim 4 of the present invention, when a plurality of pyroelectric sensors are provided above the ticket gate passage, the user can be easily detected without providing a pyroelectric sensor in the main body, or It is provided and can be operated together with the pyroelectric sensor to detect the user with high accuracy.

[Brief description of drawings]

FIG. 1 is a front view of a main body seen from a ticket gate passage side when a human detection device according to an embodiment of the present invention is applied.

FIG. 2 is a block diagram of a human detection device according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram for explaining a detection operation of a pyroelectric sensor.

FIG. 4 is a flowchart showing a basic detection operation.

FIG. 5 is a flowchart showing a control operation when two users are detected with one ticket.

FIG. 6 is a front view of the main body seen from the ticket gate passage side when the human detection device according to another embodiment of the present invention is applied.

FIG. 7 is a front view of the main body as seen from the ticket gate passage side when the human detection device according to yet another embodiment of the present invention is applied.

FIG. 8 is a front view of the main body viewed from the ticket gate passage side when the conventional human detection device is applied.

[Explanation of symbols]

1 insertion slot 2 outlet 3,3 ', 3 "Pyroelectric sensor 3a to 3h Pyroelectric sensor element (pyroelectric sensor) 3a'-3h 'lens 4 amplifier 5 Filter circuit 6 arithmetic circuit (MPU) a Automatic ticket gate (main body) A ticket gate

Front page continuation (72) Inventor, Koji Ohashi 1-13-8 Kamikizaki, Urawa-shi, Saitama Nihon Signal Co., Ltd., Yono Works (72) Hitoshi Kojima 1-13-8 Kamikizaki, Urawa-shi, Saitama Nihon Signal Co., Ltd. in Yono Works (72) Inventor Haruo Watanabe 1-13-8 Kamikizaki, Urawa-shi, Saitama Nihon Signal Co., Ltd. in Yono Works (56) Reference JP-A-8-138092 (JP, A) ) JP-A-4-339282 (JP, A) JP-A-5-297151 (JP, A) JP-A-4-241692 (JP, A) JP-A-57-73486 (JP, A) 12969 (JP, U) Actual Kaihei 6-70045 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) G07B 15/00 G07B 11/00

Claims (4)

(57) [Claims] 1. A human body which is along a passage direction of a ticket gate of an automatic ticket gate and which divides the ticket gate into a detection area.
A sensor unit including a plurality of pyroelectric sensors for detecting infrared rays emitted from the sensor, and a calculation process based on the output value of each of the pyroelectric sensors.
A human detection device for an automatic ticket gate, comprising: a detection unit for detecting the position of the user in the ticket gate passage and detecting the moving state of the user from the change state of the detection signal. apparatus. 2. A human detection for an automatic ticket gate according to claim 1.
In the device, a pyroelectric sensor of the double number of automatic ticket gate machine body and its automatic ticket automatic ticket gate characterized in that provided in the detector mounting bar projecting upwardly from the upper surface of the main body Human detection device. 3. A human detection for an automatic ticket gate according to claim 1.
In the apparatus, with a pyroelectric sensor of the multiple provided two pairs one above the automatic ticket gate machine body, a plurality of pyroelectric sensors below the set
Be characterized in that the from reforming bill path surface to a predetermined height and a detection area, above the plurality of pyroelectric sensors set of which the upper sensing area of a plurality of pyroelectric sensors set therebelow and detection area that automatic ticket gate for human detection device. 4. A human detection for an automatic ticket gate according to claim 1.
In the device, a pyroelectric sensor of the double number of automatic ticket gate for human detection device characterized in that provided above the break bill passage.