JP2012027518A - Room entering/leaving person number count system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To count the number of persons indiscriminately and with no contact even in the case that the persons enter or leave a room side by side and in the case that the persons simultaneously enter or leave the room, and to easily construct a system by using a mat including a laser light source, an optical sensor and a pressure sensor as components.SOLUTION: In the present invention, the laser light source and the optical sensor are installed, and room entering and room leaving are distinguished according to sequence in which the optical sensor is turned on and off. The mat which is for easily guiding the feet of a person and includes the pressure sensor in the shape having an inclination and height to an extent that an auxiliary movement device, such as a wheel chair, can pass, is installed on a floor and the pressure sensor counts the number of persons who enter or leave the room. Consequently, it becomes possible to count the number of persons who simultaneously enter or leave the room indiscriminately and with no contact and to grasp the number of persons in the room.

Description

The present invention is a combination of a laser light source, a light sensor, and a mat with a built-in pressure sensor having a shape that can easily be guided by a person in an entrance / exit to a room having a doorway through which one or two people can pass. The present invention relates to an entrance / exit number counting system.

As a prior art, an entrance / exit monitoring system for monitoring an entrance / exit of a monitored person registered in advance in an area where monitoring gates are provided at a plurality of locations, to a monitored person transmitted from a wireless transmitter A signal receiving means for receiving a given self-other identification signal including the ID information of the subject to be monitored, and a subject to be monitored installed on both the outer side and the inner side of the monitoring gate with respect to the specific area; Based on two gate sensors that detect that a person has passed a predetermined position with respect to the monitoring gate, signal receiving means installed in each monitoring gate, and detection signals from the gate sensors. What is claimed is: 1. An entry / exit monitoring system comprising: a management device that collectively manages entry / exit of a target person; and a display device that displays ID information of a monitored subject existing in a specific area. That (see Patent Document 1).

Further, as another prior art, in the in-area passing number measuring device for measuring the number of persons passing through a predetermined area, each area obtained by dividing the passing area by using the predetermined area as a passing area is a unit block. A mapping information storage unit that holds mapping information between weighted sensors installed in the unit block and the unit block, a combination of unit blocks for identifying one foot as a foot pattern, and a foot pattern storage unit that stores the foot pattern A sensor data acquisition unit that acquires weight information of the weighted sensor in the passage region, and the unit blocks that are weighted in the passage region from the weight information of the sensor data acquisition unit are adjacent to each other Means for obtaining a weighted block in the passing region using a set of unit blocks as a weighted block is known. The technology further compares the foot pattern stored in the weighted block creation unit and the foot pattern storage unit with the weighted block obtained in the weighted block creation unit, and configures the weighted block. Among the combinations of foot patterns, the combination of the foot patterns composed of the minimum number of the foot patterns is obtained, and a set of unit blocks constituting the foot pattern in the combination is defined as a foot block, and the center of gravity of each foot block is defined as the foot. Points. Further, a combination of the foot points within a certain distance between the foot points created by the foot block creation unit and the foot block creation unit is defined as a double foot, and the both foot contact determination unit and the both feet for obtaining the combination of the foot points The number of the double feet obtained by the ground contact determination unit and the number of the foot points that are not the double foot are added together to obtain the number of passing people. There is known an in-area passing number measuring device including such a passing number determining unit (see Patent Document 2).

As another prior art, an entrance / exit management system using a two-type optical sensor, wherein the number of people passing at the same time is measured based on the time passing in front of the two-type optical sensor. There is a system (see Patent Document 3).

JP 2007-7841 A JP 2006-285429 A JP 2008-47082 A

The one disclosed in Patent Document 1 is an entry / exit monitoring system that monitors entry / exit of a monitored person registered in advance, and receives a self-other identification signal including ID information of the monitored person. It is necessary, and it is not possible to count the number of people entering and leaving the room without requiring registration as in the present invention.

In addition, what is shown in Patent Document 2 described above is that a load sensor is uniformly installed on the floor in a certain area, and the number of people passing through the area is estimated from the sensor data, thereby entering a condominium or the like. Only the number of people entering the room is counted, and the number of people entering and leaving the room as in the present invention is not counted simultaneously.

Moreover, what was shown in the said patent document 3 is the entrance / exit management system by a two-type optical sensor, and measures the number of people who pass simultaneously by the time which passes in front of a two-type optical sensor. In the structure, when two or more people enter and leave the optical axis of the optical sensor at the same time, it is not possible to count them. As in the present invention, people enter and leave the room side by side. Even when people enter and leave at the same time, it is different from counting people.

The present invention is intended to solve such problems of the prior art, and its purpose is to accurately count the number of people even when people enter and leave the room side by side or when people enter and leave the room at the same time. Therefore, it is to provide an entrance / exit number counting system that can also grasp the number of people in the room. The parts used are mats incorporating a laser light source, an optical sensor, and a pressure sensor, and this system can be easily constructed. In the present invention, it is referred to as indiscriminate that it does not require pre-registration and does not require an individual identification, and it is referred to as non-contact that an act of contacting an ID tag or the like is unnecessary only by passing. .

As shown in FIG. 1, the system for counting the number of people entering and leaving the present invention installs a laser light source and an optical sensor, and clarifies the distinction between entering and leaving the room according to the order in which the optical sensor is turned on and off. In addition, by installing a mat with a built-in pressure sensor that has a height and a slope that is easy to guide a person's feet and that can also be used to move mobility aids such as wheelchairs, the number of people passing at the same time can be distinguished. It is characterized by being able to count.

1) This system comprising a mat incorporating a laser light source, an optical sensor, and a pressure sensor requires few parts and can be easily constructed.
2) It is a system that can count the number of people indiscriminate and non-contact, even when people enter and leave the room side by side, and even when people enter and leave the room at the same time.
3) By grasping the number of people in the room, it is a system that can manage air conditioning equipment, lighting equipment, etc., estimate rescue activities in the event of a disaster, and check the number of visitors at stores such as shopping malls.

It is the schematic of the system which counts the number of people who enter / exit of this invention. It is a layout view of a laser light source and an optical sensor. It is the schematic of the mat | matte incorporating a pressure sensor. It is a figure which shows arrangement | positioning of a pressure sensor, Comprising: A mode that the number of people is counted is shown. It is a flowchart of the whole system which counts the number of people who enter or leave the room of the present invention. It is an example of the flowchart at the time of only entering or leaving a room. It is an example of the flowchart at the time of entering / exiting simultaneously.

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, the present system for counting the number of people entering and leaving a room has a mat with a laser light source and an optical sensor between which a pressure sensor is built. In addition, this entrance / exit is the width | variety which a person can pass from 1 to 2 persons.

In FIG. 1, photosensors are installed on the upper and lower sides of the outside of the room, and the height of each is in the range of 650 mm to 750 mm, preferably 695 mm, between the point corresponding to the center of the upper leg of a general adult and the floor surface. 705 mm, particularly preferably about 700 mm, and the distance between the point corresponding to the center of the lower leg and the floor surface is in the range of 200 mm to 300 mm, preferably 245 mm to 255 mm, particularly preferably about 250 mm. By using the height, it can be detected even in the case of a movement assist device such as a child or a wheelchair. A case where the photosensors 102A and 102B are turned off at the same time and the photosensors 102C and 102D installed in the same manner inside the room are turned off at the same time is defined as entering the room. Further, entering the room and leaving the room are distinguished by leaving the case where the optical sensors 102C and 102D are simultaneously turned off and then the optical sensors 102A and 102B are simultaneously turned off.

As shown in FIGS. 3 to 4, the longitudinal width is in the range of 500 mm to 700 mm, preferably about 600 mm, the lateral width is in the range of 1000 mm to 1400 mm, preferably about 1200 mm, the height is in the range of 10 mm to 40 mm, preferably about 30 mm, and the gradient is 10 Range of 25 degrees, preferably about 20 degrees, trapezoid hypotenuse length is in the range of 80 mm to 120 mm, preferably about 100 mm, and is easy to guide human feet, and mobility aids such as wheelchairs A mat with a built-in pressure sensor that can be passed through is installed. The average foot size of an infant of about 3 years old is about 160 mm, and at least 3 adjacent pressure sensors arranged at 50 mm intervals react, so when 3 or more adjacent pressure sensors react By counting as one person, it is possible to count a plurality of people at the same time. In addition, since a mobility aid such as a wheelchair has four wheels, it is considered that one person has passed when the pressure sensor makes a vertical crossing while reacting four points at a constant width.

The entire system for counting the number of people entering and leaving the room will be described with reference to the flowchart shown in FIG. A change in one of the optical sensors is acquired and processed (S501). → The change of the pressure sensor is acquired and processed (S502). → The change of the pressure sensor is acquired and processed (S503). → A pass number determination process is performed (S504).

An example of an algorithm when only entering or leaving a room will be described with reference to the flowchart shown in FIG. The optical sensors 102A and 102B are simultaneously turned off (S602). → The number of people is counted by the pressure sensor (S603). → The optical sensors 102C and 102D are simultaneously turned off (S604) → The number of persons is displayed (S605). If the processes are not simultaneously turned off, the same process is repeated (S602, S604).

An example of entering and leaving the room at the same time will be described with reference to the flowchart shown in FIG. The optical sensors 102A and 102B are simultaneously turned off (S802). → Count the number of people with the pressure sensor (S803). → The optical sensors 102C and 102D are simultaneously turned off (S804). → The number of people is displayed (S805). At this time (S802), if the optical sensors 102C and 102D are simultaneously turned off, the number of persons is counted by the pressure sensor as before (S807). → The optical sensors 102A and 102B are simultaneously turned off (S808). → The number of people is displayed (S805). If the processes are not simultaneously turned off, the same process is repeated (S804, S808).

The entry / exit number counting system according to the present invention counts the number of people even when entering and leaving a room, etc., even when people enter and leave the room side by side, and when people enter and leave the room at the same time. It is effective as a measurement system. As mentioned above, although embodiment of this invention was described, this invention is not limited to said embodiment, A various change can be added.

Optical sensor devices 101A, 101B ... Laser light source devices 102A, 102B, 102C, 102D ... Laser light sources 103A, 103B, 103C, 103D ... Optical sensor 104 ...・ Mat 105 with built-in pressure sensor ... Pressure sensor

Claims (4)

  Indiscriminate and combined use of a laser light source, a light sensor, and a mat with a built-in pressure sensor having a shape that can easily be guided by a person in an entrance / exit to a room having an entrance that allows one to two people to pass. A system for counting the number of people entering and leaving a room without contact.   As a system for counting the number of people entering and leaving the room indiscriminately and non-contactingly, a laser light source and a light sensor are provided on the inside and outside of the entrance, and it is easy to guide a person's feet on the floor, and a mobility aid such as a wheelchair. The entrance / exit number counting system according to claim 1, wherein a mat having a pressure sensor having a shape with a gradient and height sufficient to allow passage of a person is installed.   As a system for counting the number of people entering and leaving the room indiscriminately and non-contactingly, the optical sensors installed on the upper and lower sides each have a distance between the center point of the upper adult thigh and the floor surface of 650 mm to 750 mm. It is preferably 695 mm to 705 mm, particularly preferably about 700 mm, and the distance between the point corresponding to the center of the lower leg and the floor surface is in the range of 200 mm to 300 mm, preferably 245 mm to 255 mm, particularly preferably about 250 mm. The entrance / exit number counting system according to claim 1 and 2.   The range of vertical width 500 mm to 700 mm, preferably about 600 mm, the width of 1000 mm to 1400 mm, preferably about 1200 mm, the height of 10 mm to 40 mm, preferably about 30 mm, and the gradient of 10 to 25 degrees, preferably 20 The trapezoid hypotenuse has a trapezoidal shape with a trapezoidal shape in the range of 80 mm to 120 mm, preferably about 100 mm, and has a built-in pressure sensor that can easily guide a person's foot and that can be used by mobility aids such as wheelchairs. The entrance / exit number counting system according to claim 1, 2 and 3, wherein the number of persons of infants and wheelchairs can be counted by installing a mat.