Title:
こじ開け判定システム
Document Type and Number:
Japanese Patent JP7202180
Kind Code:
B2
Abstract:
To provide a prying determination system that quickly and securely detects prying of a door.SOLUTION: At a main entrance 15 of a building 10 are provided an entrance door 16 and a door frame 17. On a door end side face of the entrance door 16 are provided two position detection sensors for detecting prying of the entrance door 16. The door frame 17 has two magnets that correspond to the two position detection sensors and are provided on a side face of the door frame 17. The respective position detection sensors are magnetic sensors for outputting analog voltage proportional to magnetic fields caused by the respective magnets. On the basis of respective voltage values output by the position detection sensors, a position of the entrance door 16 with respect to the door frame 17 can be detected at two locations. When a difference between the respective voltage values output by the two position detection sensors is equal to or larger than a predetermined threshold, it is determined that the entrance door 16 is being pried.SELECTED DRAWING: Figure 1
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Inventors:
Kuki Atsushi
Application Number:
JP2018245740A
Publication Date:
January 11, 2023
Filing Date:
December 27, 2018
Export Citation:
Assignee:
Toyota Home Corporation
Tokai Rika Electric Co., Ltd.
Tokai Rika Electric Co., Ltd.
International Classes:
E05B45/06; E05B63/14; G01B7/00
Domestic Patent References:
| JP2005100045A | ||||
| JP200974267A | ||||
| JP3123080U | ||||
| JP2005141394A | ||||
| JP200611995A | ||||
| JP2012154065A |
Attorney, Agent or Firm:
Yamada Tsuyoshi
Masahiro Kato
Masahiro Kato
Previous Patent: complex
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