JPH03180795A - Human detecting method for aperture part automatic opening/closing mechanism - Google Patents

Abstract

PURPOSE:To surely detect even a human being in the stationary state by allowing a human detecting sensor dependent upon heat rays to sweep a detection area and relatively moving the human being. CONSTITUTION:A human detecting sensor 2 which detects the temperature difference between the human being and the surface in a room is attached to a bracket 4 freely shakably and axially supported through a supporting shaft by a lintel part 3 of a building shutter 1. One end of a link 5 is axially supported by the bracket 4, and the other end is axially supported by a cam plate 7 connected to the output shaft of a synchronous driving motor 6. When the motor 6 is driven to rotate the cam plate 7, the bracket 4 is shaked toward the curtain face of the shutter 1 with the supporting shaft as the fulcrum, and therefore, the sensor 2 is shaked right and left along the curtain face to widely sweep the detection area. Thus, the sensor 2 sweeps the human being and regards him as relatively moving to detect him though he is stationary in the room, and the human being in the stationary state is surely detected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a human detection method in an automatic opening/closing mechanism for an opening provided at the entrance/exit of a bank cash dispenser room or the like.

[Prior art and problems to be solved by the invention] Today, cash dispensers (CDs) are used at building entrances and exits and at banks.
When installing an opening/closing device such as a construction shutter at the entrance/exit of a room, etc., the opening/closing device may be automatically opened/closed by remote control. By the way, when automatically closing the room, it is necessary for safety management to take care to prevent people from getting caught in the opening/closing equipment or being left behind in the room. For that purpose-
As a method, attempts have been made to use heat ray detection sensors as human detection sensors. In other words, this heat ray detection sensor detects the temperature of an object based on the far infrared rays emitted based on the object temperature. There will be a difference in temperature between the temperature of the floor surface, wall surface, etc. Based on the premise that humans move, it is determined whether the area with this temperature difference has moved or not, and if it is determined that it has moved, the opening/closing device is automatically closed as one person has been detected. There have been attempts to configure human detection sensors to stop. However, as can be seen from the above explanation, this human detection sensor can detect a person even if there is a person within the temporary detection area if it is determined that the person is stationary with little movement. However, if things continue as they are, the response will be inadequate in terms of safety management.

Further consideration is required to supplement this.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a human detection method in an automatic opening/closing mechanism for an opening that can eliminate these drawbacks. We have installed a human detection sensor that detects the presence of a person by detecting the difference between the surface temperature of the building and the human temperature in the automatic closing mechanism that automatically closes the openings installed at room entrances and other openings. In an opening/closing device configured to be connected to each other and to automatically stop closing when a human being is detected,
The human detection sensor is characterized in that it detects a human by sweeping its detection area and moving the human relatively.

The present invention is characterized in that the detection area of the human detection sensor is swept by swinging the human detection sensor.

Furthermore, in order to sweep the detection area of the human detection sensor,
The detection range of the human detection sensor is made wide, and the human detection sensor is covered with a rotating body in which a slit is formed, and the human detection sensor is configured to move by the movement of the slit as the rotating body rotates. be.

Furthermore, in order to sweep the detection area of the human detection sensor, a plurality of detection beams are incident on the human detection sensor from the radial direction, and human detection judgments are made sequentially using the plurality of incident detection beams. It is also characterized by its structure.

With these configurations, the present invention enables the heat ray detection sensor to reliably detect a person even when the person is stationary.

[Embodiment] Next, an embodiment of the present invention will be described based on the drawings. In the drawing, 1 is an architectural shutter installed at the entrance of the CD room, and the shutter 1 is automatically opened and closed by a control command from a remote location such as the management room. A human detection sensor 2 in which the present invention is implemented is provided. This human detection sensor 2 is
The human detection sensor 2 is constructed using a heat ray detection sensor that detects the temperature difference between a human and the interior surface of the room (surfaces such as floors and walls). The link 5 is attached to a bracket 4 which is rotatably supported via the link 5, and one end of a link 5 is pivotally supported by the bracket 4.

On the other hand, 6 is a synchronized opening motor, and a cam plate 7 is connected to the output shaft of the opening motor 6, and the other end of the link 5 is supported by the cam plate 7. has been done. Then, the drive motor 6 opens, and in conjunction with the rotation of the cam plate 7, the bracket 4 swings about the support shaft 4a toward the curtain surface of the architectural shutter 1, thereby detecting a human being. The sensor 2 is configured to oscillate in the left and right directions along the curtain surface, and its detection area is widely swept left and right.

In an embodiment of the present invention constructed as described above, a CD
Human detection sensor 2 detects whether there is a person in the room.
However, this human detection sensor 2
detects a person while sweeping widely along the curtain surface by driving the drive motor 6. For this reason, CD
Even if the person in the room is stationary, what is detected is determined by the high temperature part, that is, the relative movement of the person, and this ensures that even if the temporary person is stationary, It is now possible to detect humans.

It is possible to reliably take various safety measures necessary for closing control, such as stopping automatic closing of the shutter.

When the human detection sensor 2 is oscillated as in this embodiment, the human detection sensor 2 itself may be a popular product with a narrow detection range (detection angle), thereby reducing the cost of the entire device. It has the advantage of being possible.

The purpose of the sweep operation of the human detection sensor 2 is as a safety measure during the closing operation, so in principle, it does not need to be performed when the shutter is opened, fully opened, or in the fully open state, and only needs to be performed when the shutter is closed. Therefore, when controlling the shutter to close, before the shutter starts its closing operation, it performs a predetermined sweep operation to check whether there is a person present or not, and then it is determined that there is no person present. From the viewpoint of safety, it is preferable to start the closing operation only when the closing operation is necessary, and to control the sweep operation continuously until the closing operation is completed. It goes without saying that such control of the sweep operation can be performed using electrical circuits using switches such as relay switches and limit switches, or can also be performed by microcomputer control.

Of course, as mentioned above, in a device that detects humans based on the detection of movement of a high-temperature area, when the human detection sensor is swept, the surface temperature in the room in the detection area is swept by the human detection sensor. It is necessary to maintain and control the temperature within a range that is small enough to prevent people from mistakenly determining that there is a person present, but in this day and age, where air conditioning equipment technology has developed greatly and indoor temperature control is actively being carried out, There are no major problems with that.

Furthermore, if a human moves in accordance with the sweep speed, it is conceivable that it will become undetectable, but even if a human moves in accordance with the sweep, the human requires complex limb movements to move. Normally, it would be unthinkable for all of these to move along with the sweep.
It is unrealistic.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and as a method of sweeping the human detection sensor, as in the second embodiment shown in FIG. 3, the detection range of the human detection sensor 3 is widened. and this human detection sensor 2,
If the rotating body 8 is covered with a rotating body 8 in which a slit 8a is formed and the rotating body 8 is rotated by a motor 9, the detection area through the slit 8a will be swept. You will be able to judge.

In this case, there is no need to move the human detection sensor 2, so there is an advantage that the wiring can be protected from metal fatigue.

Further, in the third embodiment shown in FIG. 4, the human detection sensor 2 is configured such that a plurality of detection beams are simultaneously incident from the radial direction, but the human detection judgment by the plurality of incident detection beams is simultaneously performed. For example, ■, ■, ■
If the detection judgment is performed in the order of the detection beams, it is possible to detect a stationary person in the same manner as described above. In this case, the areas of each detection beam may or may not overlap, but if they do not overlap, it is of course not desirable to set them at intervals that would leak the presence of a person. .

In this case, there is no need for component devices such as drive motors as in the above two embodiments, and it is only necessary to set an order for the processing of the detection beams on the control judgment section side, and the installation location Suitable for cases where there are restrictions. Incidentally, it is preferable to control such settings using a microcomputer because it is structurally simple.

[Operations and Effects] In short, the present invention is configured as described above, so even if there is a stationary person, the human detection sensor side sweeps this, and the stationary person is relatively moving. It is determined that the object is a human object and detects a person. As a result, although the system detects people by moving the high-temperature part relative to the surface temperature of the building, it can also reliably detect people who are stationary, eliminating missed detections and achieving highly reliable human detection. , safety management of the automatic closing control of the opening/closing device can be ensured.

[Brief explanation of drawings]

The drawings show an embodiment of the human detection method in the automatic opening/closing mechanism for openings according to the present invention, in which FIG. 1 is a schematic perspective view of an architectural shutter, and FIG. FIG. 3 is an explanatory diagram of the operation of the human detection sensor of the second embodiment, and FIG. 4 is an explanatory diagram of the operation of the human detection sensor of the third embodiment. In the figure, 1 is an architectural shutter, 2 is a human detection sensor, 6 is an opening motor, 8 is a rotating body, and 8a is a slit.

Claims (1)

[Claims] 1) An automatic closing mechanism that automatically closes an opening/closing device installed at an opening such as a doorway detects the presence of a person by detecting the difference between the surface temperature of the building and the temperature of the person. In the opening/closing device for an opening, the opening/closing device is configured to connect a human detection sensor to automatically stop closing when a human is detected, and the human detection sensor sweeps its detection area to detect a human relatively. A method for detecting a human in an automatic opening/closing mechanism for an opening, characterized in that the human is detected by movement. 2) A human detection method in an automatic opening/closing mechanism for an opening, characterized in that the detection area of the human detection sensor according to claim 1 is swept by swinging the human detection sensor. 3) In order to sweep the detection area of the human detection sensor according to the first aspect, the detection range of the human detection sensor is widened, and the human detection sensor is covered with a rotating body in which a slit is formed. A method for detecting a human being in an automatic opening/closing mechanism for an opening, characterized in that the detection is performed by moving a slit with rotation. 4) In order to sweep the detection area of the human detection sensor according to the first aspect, the human detection sensor is configured such that a plurality of detection beams are incident from the radial direction, and the human detection judgment is made based on the plurality of incident detection beams. A method for detecting a human being in an automatic opening/closing mechanism for an opening, characterized in that the method is configured to sequentially perform the following steps.