Method and device for determining an unauthorized intrusion at a door

Patent metadata

Field	Value
Publication number	US-9811986-B2
Application number	US-201415112221-A
Country	US
Kind code	B2
Filing date	Nov 27, 2014
Priority date	Jan 22, 2014
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

A method for determining the unauthorized intrusion through a door, including: a) determining a movement path of the door as a function of time in all three spatial axes using a movement sensor in an active mode; b) determining parameters in all three spatial axes based on the movement path of the door, an unauthorized intrusion at the door exists when the actual value of the particular parameter is within an assigned parameter range for the unauthorized intrusion; c) determining an opening angle of the door using an angle measuring sensor when an unauthorized intrusion has been determined; and d) comparing the opening angle of the door with a threshold value for a closed door; e) determining that the door has been opened when the opening angle exceeds the threshold value, and outputting an alarm signal if the door has been opened. A device is also described.

First claim

What is claimed is:

1. A method for determining the unauthorized intrusion through a door and opening of the door, the door including any closure of an opening in a wall, the method comprising:
a) determining a movement path of the door as a function of time in all three spatial axes by a receiver and evaluation unit using a movement sensor in an active mode;
b) determining parameters, using the receiver and evaluation unit, in all three spatial axes based on the movement path of the door as a function of time, the movement path being determined using the movement sensor, the receiver and evaluation unit determining that an unauthorized intrusion at the door exists when the actual value of a particular parameter is within an assigned parameter range for the unauthorized intrusion, the parameter range being stored in a memory unit;
c) after the unauthorized intrusion at the door has been determined by the receiver and evaluation unit, determining an opening angle of the door using the receiver and evaluation unit using an angle measuring sensor;
d) comparing the opening angle of the door with a threshold value for a closed door using the receiver and evaluation unit;
e) determining, by the receiver and evaluation unit, that the door has been opened when the opening angle exceeds the threshold value for the closed door; and
f) outputting, by the receiver and evaluation unit, an alarm signal if the door has been opened.

2. The method as recited in claim 1 , wherein the angle measuring sensor is switched on or activated by the receiver and evaluation unit for detecting an opening angle of the door when an unauthorized intrusion is detected.

3. The method as recited in claim 1 , wherein the movement sensor detects, in step a) in a stand-by mode, an application of a force onto the door and transmits a signal, to the receiver and evaluation unit if the force on the door exceeds a threshold value for a force minimum, and the receiver and evaluation unit activates the movement sensor in the active mode to detect the movement path of the door in all three spatial axes as a function of time.

4. The method as recited in claim 3 , wherein, in step b), the receiver and evaluation unit activates a timer when an unauthorized intrusion at the door has been determined, and the determination of the opening angle in step c) and the comparison of the opening angle with the threshold value in step d) is repeated until either it is determined within the predefined period of time in step e) that the door has been opened, or that the period of time predefined by the timer has expired and an opening of the door has not been determined in step e), the receiver and evaluation unit returning to the stand-by mode of step a) when the predefined period of time has expired and an opening of the door has not been determined in step e).

5. The method as recited in claim 1 , wherein parameter ranges for multiple occurrences of an unauthorized intrusion are retrievably stored in the memory unit and the receiver and evaluation unit determines, in step b), that an occurrence of the unauthorized intrusion at the door exists when the actual value of the particular parameter is within the parameter range for the occurrence of the unauthorized intrusion and the occurrences for the unauthorized intrusion at the door are occurrences at least one of: i) as the door being opened with the aid of a picklock, ii) the door being opened with the aid of a pry bar, iii) a window being opened using a pry bar in the room closed with the aid of the door, and iv) a ramming of the door.

6. The method as recited in claim 3 , wherein parameter ranges for multiple occurrences of an authorized intrusion are retrievably stored in the memory unit, the occurrences of the authorized intrusion at the door preferably being occurrences including at least one of: i) a knocking on the door, ii) striking the door with a toy car, iii) striking the door with a shopping bag, and iv) opening the door with the assigned key, and wherein in step b), the receiver and evaluation unit determines that an occurrence of the authorized intrusion at the door exists when an actual value of the particular parameter is within the parameter range for the occurrence of the authorized intrusion, and the receiver and evaluation unit returns to the stand-by mode of step a).

7. The method as recited in claim 1 , wherein parameters in at least one of the spatial axes are at least one of: i) an amplitude level, ii) a period, iv) a duration of a pause between two consecutive periods, v) a number of the amplitudes which exceed a predetermined amplitude level, and vi) a duration of the pause between two amplitudes which exceed a predetermined amplitude level.

8. The method as recited in claim 1 , wherein the alarm signal is transmitted to at least one of an alarm unit and at least one external electronic unit.

9. The method as recited in claim 1 , wherein the alarm signal is transmitted to at least one the external electronic unit, the external electronic unit including at least one of: a cellular phone, a smartphone, a server, a WLAN router, a PC, a tablet PC, a laptop, and a fax machine.

10. The method as recited in claim 1 , wherein the movement sensor is an acceleration sensor and the angle measuring sensor is a gyroscope.

11. A device for determining unauthorized intrusion through a door and opening of the door, the door including any closure of an opening in a wall, the device comprising:
a movement sensor for determining a movement path of the door as a function of time in all three spatial axes;
an angle measuring sensor for determining an opening angle of the door;
a memory unit in which parameter ranges for parameters in all three spatial axes for an unauthorized intrusion at the door are stored, and at least one threshold value for an opening angle of a closed door; and
a receiver and evaluation unit to determine actual values of the parameters based on the movement path of the door as a function of time, determined using the movement sensor, the receiver and evaluation unit to determine an unauthorized intrusion at the door when the actual value of the particular parameter is within the assigned parameter range stored in the memory unit, the receiver and evaluation unit designed to compare, after determining the unauthorized intrusion at the door, the opening angle of the door, measured using the angle measuring sensor, with the threshold value, and the receiver and evaluation unit designed to output an alarm signal when the opening angle of the door exceeds the threshold value for the opening angle of the closed door.

12. The device as recited in claim 11 , wherein the device one of: includes an alarm unit, or is coupleable to the alarm unit, the receiver and evaluation unit transmitting the alarm signal to the alarm unit for generating a warning signal.

13. The device as recited in claim 12 , wherein the warning signal is one of a visual warning signal or an acoustic warning signal.

14. The device as recited in claim 11 , wherein the device includes a transmitter for transmitting the alarm signal to at least one external electronic unit.

15. The device as recited in claim 14 , wherein the at least one external electronic unit includes at least one of: a cellular phone, a smartphone, a server, a WLAN router, a PC, a tablet PC, a laptop, and a fax machine.

16. The device as recited in claim 14 , wherein the device includes an energy supply unit for supplying with energy at least one of: the movement sensor, the angle measuring sensor, the alarm unit, and the transmitter, the energy supply unit

Assignees

• Bosch Gmbh Robert

Inventors

• Loidreau Maxime
• Bartholomeyczik Julian
• Schindler Frank
• Dai Qiulu

Classifications

• G07C9/27

  with central registration · CPC title

• G08B13/08 Primary

  by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind · CPC title

• G08B21/182

  Level alarms, e.g. alarms responsive to variables exceeding a threshold · CPC title

• G08B25/10

  using wireless transmission systems {(G08B25/009 takes precedence)} · CPC title

• G07C9/22

  in combination with an identity check of the pass holder · CPC title