JPS5486298A - Intrusion precaution unit - Google Patents

Intrusion precaution unit

Info

Publication number
JPS5486298A
JPS5486298A JP15465277A JP15465277A JPS5486298A JP S5486298 A JPS5486298 A JP S5486298A JP 15465277 A JP15465277 A JP 15465277A JP 15465277 A JP15465277 A JP 15465277A JP S5486298 A JPS5486298 A JP S5486298A
Authority
JP
Japan
Prior art keywords
change
discrimination signal
camera
precaution
change discrimination
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
JP15465277A
Other languages
Japanese (ja)
Inventor
Yoshio Ishihara
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP15465277A priority Critical patent/JPS5486298A/en
Publication of JPS5486298A publication Critical patent/JPS5486298A/en
Pending legal-status Critical Current

Links

Landscapes

  • Closed-Circuit Television Systems (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

PURPOSE: To save the trouble of persons in charge of precaution by giving an alarm only when a person of enemy character intrudes while remote guard duty is carried out by making use of a TV camera.
CONSTITUTION: Change detector 4 is stored with the output of TV camera 1 at the time when precaution area 2 is normal and the output of TV camera 1 is compared with the stored contents mentioned above, so that when a difference more than the fixed allowable capacity is found, a change discrimination signal will be generated. This change discrimination signal is inputted to multiplexer circuit 7 by way of change discrimination signal transmitter 5 and information transmission line 6. Circuit 7 connects information transmission line 6 to monitor device 8 to generate an alarm. By supplying information on the specific time zone and specific point, friend information transmitter 3 controls change detector 4 not to supply the change discrimination signal to change discrimination signal transmitter 5. In this way, a change in friend action, etc., are excepted from the precaution objects and an intruder is displayed on monitor device 8 via TV camera 1.
COPYRIGHT: (C)1979,JPO&Japio
JP15465277A 1977-12-21 1977-12-21 Intrusion precaution unit Pending JPS5486298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15465277A JPS5486298A (en) 1977-12-21 1977-12-21 Intrusion precaution unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15465277A JPS5486298A (en) 1977-12-21 1977-12-21 Intrusion precaution unit

Publications (1)

Publication Number Publication Date
JPS5486298A true JPS5486298A (en) 1979-07-09

Family

ID=15588907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15465277A Pending JPS5486298A (en) 1977-12-21 1977-12-21 Intrusion precaution unit

Country Status (1)

Country Link
JP (1) JPS5486298A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6385981U (en) * 1986-11-21 1988-06-04
JPH01258199A (en) * 1988-04-08 1989-10-16 Fuji Photo Film Co Ltd Camera burglarproof device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6385981U (en) * 1986-11-21 1988-06-04
JPH01258199A (en) * 1988-04-08 1989-10-16 Fuji Photo Film Co Ltd Camera burglarproof device

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