DE29611198U1 - Passive infrared motion detector with a button / opener - Google Patents

Description

Passive infrared motion detector with a button/opener

The innovation relates to a passive infrared motion detector of the type specified in the preamble of claim 1.

With the previous outdoor motion detectors, various functions such as time, brightness and range can be set on the devices. The motion detectors are usually mounted at a height of around 2.5 m. If you want to change the settings or set other operating modes, you would have to use a ladder every time to operate the device. Page 42 of the technical manual "Busch Wächter 250 and 270 Master" by Busch-Jaeger Elektro GmbH, Lüdenscheid 1995 describes and shows that a motion detector can be switched on by interrupting the power supply.

The innovation is based on the task of developing a passive infrared motion detector of the type specified in the preamble of claim 1, which allows the possibility of setting a motion detector to different functions. The task is solved by the features specified in the characterizing part of claim 1. A further development of the innovation is the subject of the subclaims.

Various functions can be set by further power interruptions. However, it must be ensured that valid regulations are not violated. The power interruptions are evaluated using a programmable logic. It must be ensured that the supply voltage of the programmable logic is maintained for the duration of the power interruption. The first power interruption is used for the previous function "switch on motion detector". With each further power interruption, various functions or operating modes can then be stored, such as permanent ON, permanent OFF, test operation, switching on after dusk for eegr; hours or the like. The various functions are made visible via a display system. In order to be able to recognize the frequency of power interruptions, they must be placed in a time window. No change in status may occur within this time. The maximum time is determined by the buffering of the supply voltage for the programmable logic. The time window currently has a minimum time of 200 ms and a maximum time of 2 s. If the power is interrupted for a significantly longer time than the maximum time, a motion detector or motion detector system will work again in automatic mode without additional functions. It is also conceivable that the additional functions will be switched off after one or more uses.

fc IJ « · * ·

An example of the innovation is shown in the
Drawing explains, the only figure 1 of which shows the motion detector in a block diagram. By interrupting using a button/opener 1, the power line L/N is briefly interrupted by a motion detector 2.
This interruption is triggered by a programmable
Logic 3 in motion detector 2. Depending on the frequency of the interruption, different program parts are processed in the programmable logic 3. A time window is programmed in the programmable logic 3 that
allows a power interruption > 200 ms. After a time of 2 s, this power interruption is accepted.
one or more power interruptions within 2 s
that are recognized as valid, a corresponding previously defined function or operating mode is executed, which is stored in the programmable logic 3. Depending on the function or operating mode recognized, this is displayed in a display system 4.

PB 2041/GM 26 June 1996

Applicant: INSTA ELEKTRO GMBH & CO. KG 58511 Lüdenscheid

B e &zgr;&ugr; q s &zgr; e i c h e &eegr; 1 is e

1 - Button/Opener

2 - Motion detector

3 - programmable logic

4 - Display system

Claims (3)

Claims for protection 1.) Passive infrared motion detector with a button/opener, with which a motion detector can be switched on again by a power interruption, characterized in that with the help of a programmable logic (3), in the motion detector (2) each further power interruption is programmed by a button/opener (1) for different operating modes such as permanent ON, permanent OFF, test operation, switching ON after dusk for eegr; hours or similar functions. 2.) Passive infrared motion detector according to claim 1, characterized in that the motion detector (2) is provided with an operating mode display system (4). 3.) Passive infrared motion detector according to claim 1 and 2, characterized in that the motion detector (2) is provided with a time window which is designed for a minimum time of 200 ms and a maximum time of 2 s.