JPS56100302A - Object detector for electric field type mobile body - Google Patents

Object detector for electric field type mobile body

Info

Publication number
JPS56100302A
JPS56100302A JP332880A JP332880A JPS56100302A JP S56100302 A JPS56100302 A JP S56100302A JP 332880 A JP332880 A JP 332880A JP 332880 A JP332880 A JP 332880A JP S56100302 A JPS56100302 A JP S56100302A
Authority
JP
Japan
Prior art keywords
mobile body
lines
parallel
electric field
type mobile
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.)
Granted
Application number
JP332880A
Other languages
Japanese (ja)
Other versions
JPS6239471B2 (en
Inventor
Hiroshi Ohashi
Hironobu Inoue
Yuji Takada
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 JP332880A priority Critical patent/JPS56100302A/en
Priority to US06/221,818 priority patent/US4366473A/en
Priority to CA000368501A priority patent/CA1160314A/en
Publication of JPS56100302A publication Critical patent/JPS56100302A/en
Publication of JPS6239471B2 publication Critical patent/JPS6239471B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE: To suitably grasp a mobile body, by installing two detection lines bent in rectangular shape in a vertical plane with a shift with each other in parallel with ground, applying a high frequency voltage via a capacitor, and detecting the phase difference of a detection signal picked up from one end of the detection lines.
CONSTITUTION: Two detection lines A1, A2 bent in rectangular shape in a vertical plane are installed in parallel with ground G with a shift of almost 1/4 period and a high frequency voltage (e) is fed via a capacitor 2. Outputs Vc1, Vc2 via an amplifier 4, detector 5 and wave forming circut 6 connected to ends a1, a2 of the lines A1, A2 are fed to a mobile direction detecting circuit 7, where the phase of both signals is compared. The direction of movement of a mobile body M which moves in parallel with the lines A1, A2, toward X1, X2, is detected by the phase difference. Thus, the mobile body can suitably be grasped.
COPYRIGHT: (C)1981,JPO&Japio
JP332880A 1980-01-15 1980-01-15 Object detector for electric field type mobile body Granted JPS56100302A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP332880A JPS56100302A (en) 1980-01-15 1980-01-15 Object detector for electric field type mobile body
US06/221,818 US4366473A (en) 1980-01-15 1980-12-31 Capacitively coupled electromagnetic intrusion warning system
CA000368501A CA1160314A (en) 1980-01-15 1981-01-14 Intrusion warning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP332880A JPS56100302A (en) 1980-01-15 1980-01-15 Object detector for electric field type mobile body

Publications (2)

Publication Number Publication Date
JPS56100302A true JPS56100302A (en) 1981-08-12
JPS6239471B2 JPS6239471B2 (en) 1987-08-24

Family

ID=11554279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP332880A Granted JPS56100302A (en) 1980-01-15 1980-01-15 Object detector for electric field type mobile body

Country Status (1)

Country Link
JP (1) JPS56100302A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5927397A (en) * 1982-05-14 1984-02-13 センスタ−・セキユリテイ・システムズ・コ−ポレイシヨン Invasion detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5927397A (en) * 1982-05-14 1984-02-13 センスタ−・セキユリテイ・システムズ・コ−ポレイシヨン Invasion detector

Also Published As

Publication number Publication date
JPS6239471B2 (en) 1987-08-24

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