JPH10293886A - Human body recognition system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the human body recognition system which can accurately and sequentially group the movement of more than one human body in a relatively small-scale building such as a care house. SOLUTION: At the ceiling part of the building, many position sensor units 20 are arranged at intervals. A portable unit 30 is put on a shoulder, etc., of a human body (person to be examined). A base station 10 sends an instruction signal for human body detection to the position sensor units 20. When a pyroelectric sensor 22 of a position sensor unit 20 detects the human body, position ID data are sent to the portable unit 30 with infrared rays. Then the portable unit 30 sends a composite signal generated by adding the position ID data to its ID data to the bas station 10 with a radio wave. A computer 11 of the base station 10 computes and records the path of the human body and displays it at a display part 11b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a human body recognition system for recognizing a position of a human body moving in a building.

[0002]

2. Description of the Related Art Various systems for recognizing a human body moving in a building have been proposed (for example, Japanese Patent Application Laid-Open No. 1-278134, 305631).
issue).

[0003] If such a human body recognition system is introduced into a medical facility such as a nursing home for the elderly, it is expected that the quality of the nursing system will be greatly improved. However, when a human body recognition system is installed in a nursing home or the like, the movement of a plurality of human bodies must be accurately grasped one by one.

[0004]

Accordingly, the present invention provides
An object of the present invention is to provide a human body recognition system capable of accurately grasping the movement of a plurality of human bodies one by one in a relatively small building such as a nursing house.

[0005]

The human body recognition system of the present invention includes a base station, a position sensor unit installed at a pitch on a ceiling of a building, and a portable unit held by a human body. The station controls and displays signals and receives /
The position sensor unit includes a radio wave receiving unit, a pyroelectric sensor, and an infrared light emitting unit.The portable unit includes an infrared light receiving unit and a radio wave transmitting unit.The position sensor unit includes a human body from a base station. When the human body is detected by the pyroelectric sensor according to the detection command, and the human body is detected, the infrared projector transmits the position ID data to the infrared receiver, and when the portable unit receives the position ID data, the portable unit transmits the position ID data to the self ID data. The combined signal to which the position ID data has been added is transmitted to the base station, whereby the base station recognizes the position of the human body.

[0006]

According to the present invention having the above structure, it is possible to accurately and accurately recognize the movement of a plurality of human bodies in a building such as a nursing home.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 is an overall configuration diagram of the human body recognition system, FIG. 2 is a block diagram of each device of the human body recognition system, and FIG. 3 is a waveform diagram of signals of the human body recognition system.

First, the overall configuration of the human body recognition system will be described with reference to FIGS. In FIG. 1, a human body recognition system includes a base station 10 and a position sensor unit 2.
0 and a portable unit 30 that is mounted and held on the shoulder of the human body (subject). A large number of the position sensor units 20 are arranged at a pitch of about 2 m on the ceiling of the building.

In FIG. 2, a base station 10 includes a computer 11 and a radio frequency (Radio Frequency) receiving / transmitting unit 12. 13 is an antenna. The computer 11 includes a control unit 11a and a display unit 11b. Further, the position sensor unit 20 is a radio wave (RF)
, A pyroelectric sensor 22 for detecting a human body, and an infrared light projecting unit 23. The portable unit 30 includes an infrared receiving unit 31 and a radio wave (RF) transmitting unit 32.

Next, the transmission / reception signal will be described with reference to FIG. FIG. 3A shows a waveform of a command signal for human body detection transmitted from the base station 10 to the position sensor unit 20. In the figure, a is a start bit, b is a data signal,
c is a parity bit, and d is a stop bit. This signal is AM modulation, and an RF signal is radiated from the antenna of the base station 10 at 1 (H). The base station 10 transmits a signal of FIG. 3A to each position sensor unit 20 as a command for detecting a human body.

FIG. 3B shows a waveform of a signal transmitted from the position sensor unit 20 to the portable unit 30. In the figure, e is a leader code, f is position ID data represented by a pulse pattern, and g is an end code. FIG.
The signal (b) is an infrared signal and is modulated at about 38 KHz.

FIG. 3C shows a waveform of a signal transmitted from the portable unit 30 to the base station 10. In the figure, h
Is a start bit, i is a data signal, j is a parity bit, and k is a stop bit. The signal transmitted from the portable unit 30 to the base station 10 is obtained by adding the position ID data received from the position sensor unit 20 to the number of the portable unit 30 (self ID data). This signal is A
This is M modulation, and when 1 (H), an RF signal is radiated to the base station 10.

This human body recognition system has the above-described configuration, and the operation will be described next. In FIG. 1, a base station 10 transmits a command signal for detecting a human body to each position sensor unit 20. When the pyroelectric sensor 22 detects a human body (subject) walking on the floor, the infrared light projecting unit 23 moves to the position I.
A D code is transmitted to the portable unit 30 by infrared rays. Then, portable unit 30 receives this signal, and portable unit 30 transmits a combined signal obtained by adding position ID data to self-ID data to base station 10 by radio waves. The pyroelectric sensor 2
Reference numeral 2 detects a living body by differentially detecting far-infrared rays emitted by a human body.

The computer 11 of the base station 10 recognizes a human body based on the received data, calculates a flow line (movement of the human body), stores necessary data in a memory, and displays the data on a display unit 11b.

[0015]

According to the present invention, the movement of a plurality of human bodies can be accurately recognized one by one in a building such as a nursing house, and necessary data can be collected.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a human body recognition system.

FIG. 2 is a block diagram of each device of the human body recognition system.

FIG. 3 is a waveform diagram of a signal of the human body recognition system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base station 11 Computer 11a Control part 11b Display part 12 Radio wave reception / transmission part 20 Position sensor unit 21 Radio wave reception part 22 Pyroelectric sensor 23 Infrared light projection part 30 Carrying unit 31 Infrared light reception part 32 Radio wave transmission part

Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI // G01S 13/74 H04B 7/26 K

Claims (1)

[Claims] 1. A base station, a position sensor unit installed at a pitch on a ceiling of a building, and a portable unit held by a human body. The base station includes a control unit, a display unit, and a radio wave reception unit. / A transmitting unit, and the position sensor unit includes a radio wave receiving unit, a pyroelectric sensor, and an infrared light emitting unit,
The portable unit includes an infrared light receiving unit and a radio wave transmitting unit. The position sensor unit detects a human body with the pyroelectric sensor according to a human body detection command from the base station, and detects the human body when the human body is detected. Unit transmits position ID data to the infrared receiving unit, and the portable unit transmits the position ID data to the infrared receiving unit.
When the D data is received, the position ID is added to the self ID data.
A human body recognition system, characterized in that a synthesized signal to which data is added is transmitted to the base station, whereby the base station recognizes a position of a human body.