Wireless sensor system

• US 20070176776A1
• Filed: 09/15/2006
• Published: 08/02/2007
• Est. Priority Date: 01/30/2006
• Status: Abandoned Application

• Current Assignee: KOWA Company Limited
• Original Assignee: KOWA Company Limited
• Inventors: Koide, Hiroyuki, Kashiwagi, Kazuhiro, Kikukawa, Yasushi, Kawai, Yoshiharu
• Application Number:
  US11/522,301
• Publication Number:
  US 20070176776A1
• Time in Patent Office: Days
• US Class Current: 340/545.100
• CPC Class Codes: G08B 13/08 by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
• CPC Class Codes: G08B 25/10 using wireless transmission systems G08B25/009 takes precedence

Abstract

A wireless sensor system according to the invention has a wireless sensor device for detecting opening and closing of a door or a window, and a wireless base station for exchanging data with the wireless sensor device 2 by wireless. A detected direction setting portion for setting a direction where an acceleration is detected and a sensitivity level setting portion for setting a sensitivity level of the wireless sensor device are located on the wireless base station side so as to set the detected direction and the sensitivity level on the wireless base station side. Then, it is not necessary to set both on the wireless sensor device, and the setting is simple, thereby.

Claims

1. Wireless sensor system having a wireless sensor device and a wireless base station, for exchanging data by wireless, comprising:

said wireless sensor device having an acceleration sensor for detecting whether a movable body, such as a door and a window, is moved or not, a sensor-side transmitting and receiving portion for exchanging data with said wireless base station, and a CPU; and

said wireless base station having a base station-side transmitting and receiving portion for exchanging said data with said wireless sensor device, a detected direction setting portion for setting a direction where an acceleration is detected, and a sensitivity level setting portion for setting a sensitivity level of said acceleration sensor.

2. The wireless sensor system according to claim 1, wherein said wireless sensor device has a threshold value output portion for outputting a threshold value which is a basis for judging whether said movable body is moved or not, and a movement judging portion for judging whether said movable body is moved or not by comparing said threshold value outputted from said threshold value output portion and an output from said acceleration sensor with each other.

3. The wireless sensor system according to claim 2 wherein said wireless sensor device has an average computing portion for computing an average of an output from said acceleration sensor, and a threshold value computing portion for computing a threshold value on the basis of a value computed by said average computing portion, and said threshold value computed by said threshold value computing portion is inputted into said threshold value output portion.