Apparatus for detecting the number of passers
First Claim
1. An apparatus for detecting a human body passing a specific area to be monitored including a ceiling and a floor, and for determining a number of human bodies passing the specific area, said apparatus comprising:
- a plurality of distance variation measuring sensors provided in a plurality of rows and to be positioned on the ceiling of the specific area to be monitored, wherein each distance variation measuring sensor includes a light emitter, a light receiver, a focus, and a detection area, and is operable for detecting the human body and for measuring a rate of change relative to time in distance between said each distance variation measuring sensor and the human body; and
judging means for determining the number of human bodies passing the specific area on the basis of a number of sensors which have detected any human body in each row of sensors and for determining a traveling direction of the human body by comparing a rate of change relative to time in distance measured by one of said plurality of sensors in one of said rows with a rate of change relative to time in distance measured by another of said plurality of sensors in another of said rows;
wherein the detection area of each sensor extends from said each sensor to a height to be set so as to correspond to the floor of the specific area to be monitored and the focus of each sensor is at a distance from said each sensor to be set so as to correspond to a distance between said each sensor and a height between shoulder height and head height of an average adult person.
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Accused Products
Abstract
A plurality of rows are provided on a calling of sensors and each have a plurality of distance variation measuring sensors. The distance variation measuring sensors each include a light emitter and a light receiver arranged in the orthogonal direction to the direction in which human bodies pass. The number of passers is detected on the basis of the number of the distance variation measuring sensors which have detected a human body. The traveling direction of human bodies is detected on the basis of the change in the distance to the distance variation measuring human bodies measured by the sensors.
60 Citations
27 Claims
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1. An apparatus for detecting a human body passing a specific area to be monitored including a ceiling and a floor, and for determining a number of human bodies passing the specific area, said apparatus comprising:
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a plurality of distance variation measuring sensors provided in a plurality of rows and to be positioned on the ceiling of the specific area to be monitored, wherein each distance variation measuring sensor includes a light emitter, a light receiver, a focus, and a detection area, and is operable for detecting the human body and for measuring a rate of change relative to time in distance between said each distance variation measuring sensor and the human body; and judging means for determining the number of human bodies passing the specific area on the basis of a number of sensors which have detected any human body in each row of sensors and for determining a traveling direction of the human body by comparing a rate of change relative to time in distance measured by one of said plurality of sensors in one of said rows with a rate of change relative to time in distance measured by another of said plurality of sensors in another of said rows; wherein the detection area of each sensor extends from said each sensor to a height to be set so as to correspond to the floor of the specific area to be monitored and the focus of each sensor is at a distance from said each sensor to be set so as to correspond to a distance between said each sensor and a height between shoulder height and head height of an average adult person. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for detecting a human body passing a specific area to be monitored including opposing side walls, and for determining a number of human bodies passing the specific area, said apparatus comprising:
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a plurality of pairs of distance measuring sensors to be provided on the opposing side walls of the specific area to be monitored, wherein each distance measuring sensor includes a light emitter and a light receiver, and is operable for detecting a distance between said each distance measuring sensor and the human body; and judging means for determining the number of human bodies passing the specific area on the basis of the distances measured by said distance measuring sensors and for determining a traveling direction of the human body on the basis of a chronological order of detection of the human body by said distance measuring sensors; wherein each pair of sensors includes an opposing sensor on each opposing wall which form a line of detection therebetween such that at least two of the lines formed by said plurality of pairs of sensors are spaced apart vertically and at least two of the lines formed by said plurality of sensors are spaced apart in a direction in which the human body passes.
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10. An apparatus for detecting a human body passing a specific area to be monitored including a ceiling, and for determining a number of human bodies passing the specific area, said apparatus comprising:
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a plurality of distance measuring sensors to be provided in one given location on the ceiling of the specific area to be monitored, wherein each distance measuring sensor includes a light emitter, a light receiver, and a detection area, and is operable for detecting the human body and for detecting a distance between said each distance measuring sensor and the human body; and judging means for determining the number of human bodies passing the specific area on the basis of a number of sensors which have detected any human body and for determining a traveling direction of the human body on the basis of the distance measured by said distance measuring sensors; wherein said sensors are oriented such that the detection area of each sensor extends downward at an angle with respect to a horizontal direction and such that the detection areas of said plurality of sensors are each oriented at a different angle with respect to a direction in which the human body passes such that the detection areas of said plurality of sensors form a sector spread along an orthogonal direction with respect to the direction in which the human body passes. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An apparatus for detecting a human body passing a specific area to be monitored including a ceiling and opposing side walls, and for determining a number of human bodies passing the specific area, said apparatus comprising:
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a plurality of infrared sensors to be mounted to the ceiling of the specific area to be monitored and to be disposed along an orthogonal direction with respect to a traveling direction of the human body through the specific area to be monitored, said plurality of infrared sensors each including a plurality of elements for detecting infrared radiation, wherein each infrared sensor is to be mounted such that said elements of said each infrared sensor are disposed along the traveling direction of the human body through the area to be monitored; a pair of distance measuring sensors to be provided on the opposing side walls of the specific area to be monitored, wherein each distance measuring sensor includes a light emitter and a light receiver, and is operable for detecting a distance between said each distance measuring sensor and the human body; and judging means for determining the number of human bodies passing the specific area on the basis of the distances measured by said distance measuring sensors and for determining a traveling direction of the human body on the basis of a chronological order of detection of the human body by said elements in each infrared sensor. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification