JPH01118394U

JPH01118394U -

Info

Publication number: JPH01118394U
Application number: JP1148088U
Authority: JP
Priority date: 1988-01-29
Filing date: 1988-01-29
Publication date: 1989-08-10

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例のブロツク構成図、
第２図は第１図の各部の動作電圧波形を示すタイ
ミングチヤート、第３図は第１図の検知素子によ
る検知エリアを示す光学図、第４図は第１図にお
ける両比較回路の出力波形を示すタイミングチヤ
ート、第５図は第１図の検知素子の感度方向を示
す説明図、第６図は３個の検知素子を用いる場合
を示し、同図ａは検知素子の配置図、同図ｂは検
知エリアの配置図、同図ｃは感度方向の説明図、
第７図は４個の検知素子を用いる場合を示し、同
図ａは検知素子の配置図、同図ｂは検知エリアの
配置図、同図ｃは感度方向の説明図、第８図は従
来の移動物体検知装置のブロツク構成図である。１Ａ，１Ｂ，１Ｃ，１Ｄ……検知素子、Ｔ１，
Ｔ２……タイマ回路、Ｓ……検出開始設定時点。 FIG. 1 is a block diagram of an embodiment of the present invention.
Figure 2 is a timing chart showing the operating voltage waveforms of each part in Figure 1, Figure 3 is an optical diagram showing the detection area by the sensing element in Figure 1, and Figure 4 is the output waveform of both comparison circuits in Figure 1. Fig. 5 is an explanatory diagram showing the sensitivity direction of the detection element in Fig. 1, Fig. 6 shows the case where three detection elements are used, and Fig. b is a layout diagram of the detection area, c is an explanatory diagram of the sensitivity direction,
Fig. 7 shows the case where four detection elements are used, Fig. 7a shows the arrangement of the detection elements, Fig. 7b shows the arrangement of the detection area, Fig. 7c shows the sensitivity direction, and Fig. 8 shows the conventional FIG. 2 is a block diagram of a moving object detection device of FIG. 1A, 1B, 1C, 1D...detection element, T1,
T2...Timer circuit, S...Detection start setting point.

Claims

[Scope of utility model registration request]

A plurality of detection elements are arranged so that their respective detection fields of view do not match, and when any one of these detection elements
a timing means for measuring a detection start setting point after a predetermined period of time has elapsed from the time when the detector is activated; and a timing means for measuring a detection end setting point after a predetermined period of time has elapsed from the detection start setting point; A moving object detecting device comprising: moving object discriminating means for outputting an object detection signal when any one of the other detecting elements is activated within a time range.