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Human body sensing device and image forming apparatus having the same

A technology for human detection and detection area, applied in the field of image forming devices and human detection devices, can solve the problem of not being able to accurately detect the position of a person or whether they are approaching or moving away, and achieve the effect of improving detection accuracy

Active Publication Date: 2012-09-26
KONICA MINOLTA BUSINESS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the technology described in the above publication, although it can be determined that a person has entered the detection area, it cannot detect the position of the person or the moving state of approaching or moving away with high precision.

Method used

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  • Human body sensing device and image forming apparatus having the same
  • Human body sensing device and image forming apparatus having the same
  • Human body sensing device and image forming apparatus having the same

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Embodiment Construction

[0079] Hereinafter, embodiments of the present invention will be described based on the drawings.

[0080] figure 1 It is a block diagram showing the configuration of a human detection device according to an embodiment of the present invention. In this embodiment, the human detection device 1 is mounted on the above-mentioned image forming device 2 such as an MFP.

[0081] The human detection device 1 includes a human detection sensor (hereinafter simply referred to as a sensor) 11 , a lens group 12 , a motor 13 , an encoder 14 , and a sensor controller 15 .

[0082] The sensor 11 is composed of a pyroelectric infrared sensor capable of detecting a human body with a power-saving and low-cost structure, and generates an output by detecting a temperature change when a person crosses the detection range of the sensor 11 .

[0083] The lens group 12 is used to form a specified detection range for the sensor 11, such as figure 2 As shown in (A), a plurality of lenses 120 are ar...

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Abstract

The invention provides a human body sensing device and image forming apparatus having the same, being able to highly accurately determine the position and moving state of a human body. The human body sensing device comprises: an infrared sensor which detects a human body; a rotatable group of lenses having a plurality of lenses arranged around the sensor, the lenses being configured to: generate unit sensing zones defined by a sensing distance extending radially outwardly from the group and a small width extending in a rotation direction of the group; and form a plurality of alternating layers of a regional sensing zone including one or more than one of the unit sensing zones and a non-sensing zone not including any of the unit sensing zones, in a rotation direction of the group; a rotary drive which rotates the group; a rotation position sensor which detects a rotation position of the group; and a recognizer which recognizes the location and / or movement of a human body based on the output level indicated by the infrared sensor and the rotation position.

Description

technical field [0001] The present invention relates to a person detection device capable of detecting a person's position or movement state, and an image forming device including the person detection device. Background technique [0002] For example, in image forming apparatuses such as copiers, printers, and facsimiles, and furthermore, in multifunctional digital image forming apparatuses called MFPs (Multi Function Peripherals) that integrate the functions of these apparatuses, it is known that A human detection device that detects the approach of the user by returning the device from the power saving mode to the normal mode to warm up when the user approaches. [0003] In addition, as such a human detection device, it is known to use a pyroelectric infrared sensor capable of detecting a human body with a power-saving and low-cost configuration. [0004] Since this pyroelectric infrared sensor detects based on a temperature change when a person crosses the detection rang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/10
CPCG01S17/06G01S3/787G08B13/189G08B13/19G08B13/193
Inventor 桝元孝介梅田史郎田中敏明
Owner KONICA MINOLTA BUSINESS TECH INC
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