Title:
DATA GATHERING DEVICE
Document Type and Number:
Japanese Patent JP3205069
Kind Code:
B2
Abstract:
PURPOSE: To enable a sensor device with a communication function to operate with a battery and to reduce the installation cost of a communication line as to a system which gathers data from plural decentralizingly arranged sensor devices with communication functions.
CONSTITUTION: The sensor devices 1-7 with communication functions are connected with short communication lines 14-19, respectively. Data (a)-(g) on physical quantities detected by sensor terminal devices of the sensor devices 1-7 are sent through the communication lines 14-19 at predetermined transmission time and all the data are gathered finally. Each sensor device on a reception side enters a stand-by state at previously allotted receiving time and is reduced in power consumption. A center device 8 or 10 gathers all the data (a)-(g) from the sensor devices 7 finally.
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Inventors:
Tatsuo Okada
Application Number:
JP23819492A
Publication Date:
September 04, 2001
Filing Date:
September 07, 1992
Export Citation:
Assignee:
Aichi Clock Electric Co., Ltd.
International Classes:
G01D21/00; G08C15/00; G08C15/06; H04Q9/00; (IPC1-7): G08C15/06; G01D21/00; G08C15/00; H04Q9/00
Domestic Patent References:
| JP4239396A | ||||
| JP3143192A | ||||
| JP49101792A |
Attorney, Agent or Firm:
Yoshimichi Hasegawa
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