JPS593382A - Electric field type detector for human body - Google Patents

Electric field type detector for human body

Info

Publication number
JPS593382A
JPS593382A JP57113049A JP11304982A JPS593382A JP S593382 A JPS593382 A JP S593382A JP 57113049 A JP57113049 A JP 57113049A JP 11304982 A JP11304982 A JP 11304982A JP S593382 A JPS593382 A JP S593382A
Authority
JP
Japan
Prior art keywords
detection
human body
detector
electric field
field type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP57113049A
Other languages
Japanese (ja)
Inventor
Hiroshi Ohashi
大橋　広
Yuji Takada
裕司 高田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP57113049A priority Critical patent/JPS593382A/en
Publication of JPS593382A publication Critical patent/JPS593382A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

PURPOSE:To detect the movement of a human body in the detection area under monitoring in an electric field type detector for human body having plural independent detection wires by connecting the detection wires under no monitoring to the ground. CONSTITUTION:Respective objects XA, XB, XC to be monitored are divided by blocks, and the respective blocks are enclosed with detection wires 1A, 1B, 1C to set detection areas A, B, C. The respective detection wires are introduced through shielded wires 9A, 9B, 9C to a detector body 10 via selection switches SWA, SWB, SWC. The selection switches are constituted of changeover switches, and are connected on one side to the body 10 and the other to the ground side. Interlocking switches SWA', SWB', SWC' interlocking to the selection switches are provided and pilot lamps 11A, 11B, 11C which indicate the monitoring state are lighted. The detection wires under no-monitoring are connected to the ground, whereby the false detection of the operation in the detection area thereof in the detection areas under monitoring is prevented.

Description

【発明の詳細な説明】 本発明は接近する人体による電界の乱れを検知して人体
の移動を検知するようにした電界式人体検知器に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric field type human body detector that detects movement of a human body by detecting disturbance of an electric field caused by an approaching human body.

まずこの種電界式人体検知器の動作原理について説明す
る。＠１図は動作原理図を示すものであって、検知線（
１）Ｋ結合コシヂシサＣｍｋ介して発振器（２）の出力
を印加するものであり、発振器（２）は第２図（ａ）　
ＶＣ示すような高周波信号全出力している。First, the operating principle of this type of electric field type human body detector will be explained. Figure @1 shows the operating principle diagram, and the detection line (
1) The output of the oscillator (2) is applied through the K-coupled coherence sensor Cmk, and the oscillator (2) is shown in Fig. 2(a).
The full high frequency signal shown by VC is output.

検知線（１）は通常時において図中破線で示すような大
地との間の静電容量Ｃｓ’５有しているが、これに対し
人体Ｍが図中工の位置からＩｆの位置に近付いてくると
、検知線（１）と人体Ｍとの間の静電容量ＣＭが加わり
、検知線（］）の持つ静電容量が前記大地間容量Ｃｓと
人体間容量ＣＭとの和の容量となる。このため検知線＋
１１　ｉ、の電圧は、第２図（ｂ）に示すように人体Ｍ
が■位置から■位Ｉ’ｄ　Ｋ近付くに従って漸次減少す
ることに々す、これ全信号処理回路（３）で検出し、警
報回路（４）を作動させるのである。即ち信号処理回路
（３）においては、検知線（１）上の信号を増中容（６
）で増巾した後検波器（６）で検波して第２図（Ｃ）の
ような出力波形を得、これをバシトパスフィルタ（７）
全通過させることにより同図（ｄ）のような波形に変換
するものであり、このバシトパスフィルタ（７）の出力
音しきい値回路（８）でしきい値ＶＴＲでレベル判別し
て同図（ｅ）のような出力波形を得ることになるもので
ある。The detection line (1) normally has a capacitance Cs'5 with the ground as shown by the broken line in the figure, but when the human body M approaches the position If from the position of the workpiece in the figure. Then, the capacitance CM between the detection line (1) and the human body M is added, and the capacitance of the detection line (]) becomes the sum of the ground capacitance Cs and the human body capacitance CM. Become. Therefore, the detection line +
11i, the voltage of human body M is as shown in Fig. 2(b).
This gradually decreases from the position ■ to the position ■I'd K, which is detected by the entire signal processing circuit (3) and activates the alarm circuit (4). That is, in the signal processing circuit (3), the signal on the detection line (1) is
) and then detected by a wave detector (6) to obtain an output waveform as shown in Figure 2 (C).
By passing all of the signal, it is converted into a waveform as shown in the figure (d), and the output sound threshold circuit (8) of this bass pass filter (7) determines the level with a threshold value VTR, and the waveform is converted into the waveform shown in the figure (d). This results in an output waveform as shown in (e).

従来上述のような人体検知器を被監視物体Ｘの監視に利
用するような場合、第３図のように被監視物体Ｘの囲り
のループ状に検知線！１＋を設置することになるのであ
るが、多数個の並設された被監視物体ＸＡ、ＸＢ・・・
を全体及び個々に監視しようとする場合には、各被監視
物体ＸＡｓＸＢ・・・毎にブロック分けし夫々全検知線
（ＩＡ）　（ＩＢ）・・・で囲んで夫々の検知エリアＡ
、Ｂ・・・’ｋ　Ｉ（＋４図のように設定し、各検知線
（ＩＡ）　（ＩＢ）・・・全シールド線（９Ａ）（９Ｂ
）により検知器本体ｔｉｏ＋に導入するようにしてあり
、各シールド線（９Ａ）（９Ｂ）・・（−ｉ：選択スイ
ッチＳＷＡ。Conventionally, when a human body detector as described above is used to monitor a monitored object X, a detection line is formed in a loop around the monitored object X as shown in FIG. 1+ will be installed, but many monitored objects XA, XB...
When trying to monitor both the whole and individually, each object to be monitored XAs
,B...'k I(+4Set as shown in the figure, each detection wire (IA) (IB)...All shielded wires (9A) (9B
) are introduced into the detector main body tio+, and each shield wire (9A) (9B)... (-i: selection switch SWA.

ＳＷＢ　・・を介して検知器本体ｔｌｏｌ側に接続され
ている。しかしてかかる従来例にあっては、例えば検知
エリアＡ、Ｃ，Ｄを監視し検知エリアＢの監視を行なわ
ないような場合は、選択スイッチＳＷＡ。It is connected to the tlol side of the detector body via SWB... However, in such a conventional example, if, for example, the detection areas A, C, and D are to be monitored and the detection area B is not to be monitored, the selection switch SWA is used.

ＳＷｃ、ＳＷＤをオシして選択スイッチＳＷＢを才）す
るようにしていた。ところがこの種の人体検知器にあっ
ては、第５図（ａ）　（ｂ）の一点鎖線に示すように検
知線（１）の周囲に円柱状の検出空間が生じることにな
るため、上述の例において検知エリアＢ内で作業を行な
う場合に検知エリアＡ又はＢ側に作業者が移動したとき
、検知エリアＡ又Ｂの検知線（ＩＡ）（ＩＢ）によりこ
の人体の動きが検出され、誤動作を生じる場合がある問
題があった。第５図中（１２＋は支柱である。I was trying to turn on the selection switch SWB by turning on SWc and SWD. However, in this type of human body detector, a cylindrical detection space is created around the detection line (1) as shown by the dashed-dotted lines in Fig. 5(a) and (b), so the above-mentioned problem occurs. In this example, when a worker moves to the detection area A or B side when working within detection area B, this movement of the human body is detected by the detection lines (IA) (IB) of detection area A or B, causing a malfunction. There was a problem that could occur. In Fig. 5 (12+ is a support column.

本発明は上述の点に鑑みて提供したものであって、複数
の検知エリアが並設されている場合において、選択的に
任意の検知エリアを監視状態に設定するとき、非監視状
態の検知エリア内での動作が監視状態の検知エリアで誤
検出されるおそれをなくした人体検知器を提供すること
を目的とするものである。The present invention has been provided in view of the above-mentioned points, and when a plurality of detection areas are installed in parallel, when selectively setting an arbitrary detection area to a monitoring state, a detection area in a non-monitoring state It is an object of the present invention to provide a human body detector that eliminates the possibility of erroneously detecting a motion inside the body in a monitoring state detection area.

以下本発明の一実施例を図面により詳述する。An embodiment of the present invention will be described in detail below with reference to the drawings.

％６図は本発明の一実施例を示し、前述の従来例に比べ
、選択スイッチ５ＷＡ１ＳＷＢ・・・・・・を切替スイ
ッチで構成してそのＣ０Ｍ端子側全シールド線（９Ａ）
（９Ｂ　）側に接続し、その一方の切替端子を検知器本
体（ｌＯ）側に接続するとともに他方の切替端子をアー
ス（大地）側に接続したものであり、選択２スイツチＳ
ｗＡ−を操作して検知エリアＡ、Ｃ，Ｄを警戒状態に設
定したとき、警戒状態に設定された検知エリアＡ、Ｃ，
Ｄの選択スイッチＳｗＡ、ＳＷ。Figure %6 shows an embodiment of the present invention, in which the selection switch 5WA1SWB... is configured with a changeover switch, and the entire shielded wire (9A) on the C0M terminal side is constructed in comparison with the conventional example described above.
(9B) side, one switching terminal is connected to the detector main body (lO) side, and the other switching terminal is connected to the earth (earth) side, and the selection 2 switch S
When the detection areas A, C, and D are set to the alert state by operating wA-, the detection areas A, C, and D set to the alert state
D selection switches SwA, SW.

ＳＷＤは検知器本体（ｌＯ）の側に接続され、非警戒状
態の検知エリアＢの選択スイッチＳＷＢはアース側に接
続されることになる。SWD is connected to the detector main body (lO) side, and selection switch SWB of detection area B in the non-alarm state is connected to the ground side.

一般にこの種の人体検知器にあっては、検知線（１）に
並行にアース電位の導体を設置した場合、この導体によ
り検知線ｆｉ＋の検出空間の広がりがシールドされ、通
常円柱形の検出空間が反導体側にのみ広がり、指向性が
得られることになる。かくて前述の実施例のものにあっ
ては、検知エリアＢの検知線（ＩＢ）がアース電位に落
されることになるものであるから、検知エリアＡ及びＣ
において、検知線（ＩＢ）に並行な検知１ｉｔ（ＩＡ）
（ｌｃ）の部分は検知エリアＢと反対の方向側への検出
空間のみを有することになり、検知エリアＢ内で作業者
が作業を行なうような場合においても、この作業者の動
作を検知線（’ＬＡ）（１（りが誤検出するおそれがな
いものである。Generally, in this type of human body detector, when a conductor of ground potential is installed in parallel to the detection wire (1), the expansion of the detection space of the detection wire fi+ is shielded by this conductor, and the detection space is usually cylindrical. spreads only on the anti-conductor side, resulting in directivity. Thus, in the above-mentioned embodiment, since the detection line (IB) of detection area B is dropped to the ground potential, detection areas A and C
, sensing 1it (IA) parallel to sensing line (IB)
The part (lc) has only a detection space in the direction opposite to detection area B, so even if a worker works in detection area B, the movement of this worker cannot be detected along the detection line. ('LA) (1) There is no risk of erroneous detection.

第７図は本発明の別の実施例を示すものであって、選択
スイッチ５ＶｖＡ、ＳＷＢ・・・・・・に対して夫々こ
れと連動する連動スイッチＳ　ＷＡ’　、Ｓ　Ｗ　Ｂ’
・・・を設け、選択スイッチｓｗ、　、ｓｗＢ・・・・
　全警戒状態に設定したとき、その対応する連動スイッ
チＳＷＡ′５ＳＷＢ′・がオシし、検知器本体（ｌＯ）
側の表示ランプ（ＩＩＡ）（ＩＩＢ）・・・・・よりな
る表示素子が点灯されることになり、どの検知エリアＡ
、Ｂ・・・が警戒状態にあるかを表示することができる
ものである。FIG. 7 shows another embodiment of the present invention, in which interlocking switches S WA' and S W B' are interlocked with the selection switches 5VvA, SWB, . . . , respectively.
... are provided, and selection switches sw, , swB...
When set to full alert state, the corresponding interlocking switch SWA'5SWB' turns on and the detector body (lO)
The display elements consisting of the side indicator lamps (IIA) (IIB) will be lit, and which detection area A
, B, . . . are in a warning state.

本発明は上述のように、各検知エリアの検知線を選択ス
イッチを介して検知器本体に導入接続するとともにこれ
ら選択スイッチを非選択位置に切替接続したときに各対
応する検知スイッチをアース側に接続するようにし几も
のであるから、選択的に任意の検知エリアラ警戒状態に
設定したとき、非警戒状態の検知エリア内での人の動き
が隣接した警戒状態の検知エリアで検出されるようなこ
とがなく、動作の信頼性が向上する効果を有するもので
ある。As described above, the present invention introduces and connects the detection lines of each detection area to the detector main body via the selection switch, and when these selection switches are switched to the non-selection position, each corresponding detection switch is connected to the ground side. Since the connection is systematic, when any detection area is selectively set to alert state, the movement of a person within the detection area of non-alert state will be detected in the adjacent detection area of alert state. This has the effect of improving operational reliability.

【図面の簡単な説明】[Brief explanation of the drawing]

来の検知エリアが１つの場合の構成図、第４図は従来の
複数の検知エリアを有する場合の構成図、第５図（ａ）
（ｂ）は検知線に対する検出空間の説明図、第６図は本
発明一実施例の構成図、第７図は本発明の別の実施例の
構成図であり、（ＩＡ）（ＩＢ）・は検知線、ｔｏｏｌ
は検知器本体、Ａ、Ｂ−は検知エリア、ＳｗＡｌＳｗＢ
・・・は選択スイッチである。 代理人　弁理士　　石　１）長　七 第７図 手続補正書（自発） 昭和５７年８月２Ｆ１日 特許庁長官殿 １、事件の表示 昭和５７年特鼾鵬第１１３　Ｆ）　４９号２、発　明の
名称 電界式人体検知器 ３、補正をする者 事件との関係　　　　　　特許出願人 性　　所　　大阪府門真市大字門真１０４８番地名　称
　（５８３）松下電二Ｆ二株式会社代表者小　林　　郁 ４、代理人 ８、補正の内容 図面中箱５凶を別紙のように訂止します。 第５　Ｍ 手続補正書（方式） １、事件の表示 昭和５７年特肝願第１１３０４９す ２、発　リ］の名称 電界式人体検知器 ３、補正をする者 １４件との関係　　　　　　時計出願人１１′、　　　
所　　大阪府門真市太字門真１０４８番地名　称　（５
８３）松下電二に株式会社代表者小　林　　郁 ４、代理人 郵便番号　５３０ 住　所　大阪市北区梅山１丁目１２番１７号（梅１］囮
゛ル５階）氏　名　（６］、７６）弁理土石　１）長　
七電話大阪（０６）３４５−７７７７（代表、）８、補
正の内容　　本願明細書第７頁第８行目の「第２図（ａ
ｌ〜（ｅ）Ｊ　’；ｃ　ｒ第２図」と訂正致し１丁。Fig. 4 is a configuration diagram of the conventional case with one detection area; Fig. 4 is a configuration diagram of the conventional case with multiple detection areas; Fig. 5(a)
(b) is an explanatory diagram of the detection space for the detection line, FIG. 6 is a block diagram of one embodiment of the present invention, and FIG. 7 is a block diagram of another embodiment of the present invention. is the detection line, tool
is the detector body, A, B- are the detection area, SwAlSwB
... is a selection switch. Agent Patent Attorney Seki 1) Chief 7 Figure 7 Procedural Amendment (Voluntary) August 2, 1982 To the Commissioner of the Japan Patent Office 1, Indication of the Case 1981 Tokuzenpeng No. 113 F) 49 No. 2, Invention Name of Electric Field Human Body Detector 3, Relationship with the person making the amendment Patent applicant Location 1048 Oaza Kadoma, Kadoma City, Osaka Name Name (583) Matsushita Denji F2 Co., Ltd. Representative Iku Kobayashi 4, Agent 8. Contents of the amendment Box 5 in the drawing will be corrected as shown in the attached sheet. No. 5 M Procedural amendments (methods) 1. Indication of the case Name of the electric field type human body detector 3, Special Patent Request No. 113049-2, Issued in 1983, Relationship with the person making the amendment 14 cases Applicant for the watch 11 ′,
Address: 1048 Bold Kadoma, Kadoma City, Osaka Name (5)
83) Matsushita Denji Co., Ltd. Representative Iku Kobayashi 4, Agent Postal code 530 Address 1-12-17 Umeyama, Kita-ku, Osaka (Ume 1, 5th floor, Encyclopedia Building) Name (6), 76 ) Benri Doshi 1) Chief
7 Telephone Osaka (06) 345-7777 (representative) 8, Contents of the amendment “Figure 2 (a)” in page 7, line 8 of the specification of the present application.
1~(e)J';cr Figure 2'' is corrected.

Claims (2)

【特許請求の範囲】[Claims] （１）　　各ブロック毎に検知線で囲まれた複数の検知
エリア金有し、各検知エリアの検知線が導入接続される
検知器本体を設け、この検知本体にて各検知線に高周波
電圧を印加することにより大地と検知線との間の静電容
量変化全検知して人体検知を行なうようにした電界式人
体検知器において、上記各検知線を夫々個別に対応する
選択スイッチ全弁して検知器本体に導入接続するととも
にこれら選択スイッチを非選択位Ｈに切替えたとき対応
する検知スイッチをアース側に接続するようにして成る
ことを特徴とする電界式人体検知器。(1) Each block has multiple detection areas surrounded by detection lines, and a detector body is provided to which the detection lines of each detection area are introduced and connected, and this detection body applies a high-frequency voltage to each detection line. In an electric field type human body detector that detects a human body by detecting all changes in capacitance between the ground and the detection line by applying voltage, each of the detection lines is connected to each of the detection lines by individually corresponding selection switches. An electric field type human body detector characterized in that the electric field type human body detector is connected to the detector main body, and when these selection switches are switched to the non-selective position H, the corresponding detection switches are connected to the ground side. （２）選択スイ・νチの選択状態に連動した動作状態の
検知エリアを表示する表示素子を設けて成ることを特徴
とする特許請求の範囲！！１項記載の電界式人体検知器
。(2) A claim characterized in that a display element is provided to display a detection area of an operating state linked to the selection state of the selection switch ν! ! The electric field type human body detector according to item 1.
JP57113049A 1982-06-30 1982-06-30 Electric field type detector for human body Pending JPS593382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57113049A JPS593382A (en) 1982-06-30 1982-06-30 Electric field type detector for human body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57113049A JPS593382A (en) 1982-06-30 1982-06-30 Electric field type detector for human body

Publications (1)

Publication Number Publication Date
JPS593382A true JPS593382A (en) 1984-01-10

Family

ID=14602193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57113049A Pending JPS593382A (en) 1982-06-30 1982-06-30 Electric field type detector for human body

Country Status (1)

Country Link
JP (1) JPS593382A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01125376U (en) * 1988-02-22 1989-08-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01125376U (en) * 1988-02-22 1989-08-25

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