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Patent Searching and Data


Title:
OBJECT DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/111196
Kind Code:
A1
Abstract:
An object detection system for which one phototransmitter or optical receiver (optical receiver (2A)) of a plurality of multiple-optical-axis photoelectric sensors (SA, SB, SC) is used as a master device and the other devices are used as slave devices, wherein the master device (2A) creates definition information which sets the timing for a detection process in each device, including this master device, and then transmits the definition information to each slave device. Furthermore, when a time corresponding to a period of time for during which one round of the performance of the detection process by the sensors has occurred for a prescribed number of cycles has elapsed, the master device (2A) transmits simultaneously to each slave device a command calling for the operation of the internal timers to be aligned. In response to this command each slave device corrects its timer and, on the basis of the definition information conforming to the individual device, executes the detection process by determining the timing for execution of the detection process with the corrected time as a reference. In addition, the master device (2A) executes the detection process by determining the timing for execution of the detection process on the basis of the definition information conforming to this master device.

Inventors:
OSAKO Kazunori (801 Minamifudodo-cho, Horikawahigashiiru, Shiokoji-dori, Shimogyo-ku, Kyoto-sh, Kyoto 30, 〒6008530, JP)
尾▲さこ▼ 一功 (〒30 京都府京都市下京区塩小路通堀川東入南不動堂町801番地 オムロン株式会社内 Kyoto, 〒6008530, JP)
KIKUCHI Keisaku (801 Minamifudodo-cho, Horikawahigashiiru, Shiokoji-dori, Shimogyo-ku, Kyoto-sh, Kyoto 30, 〒6008530, JP)
Application Number:
JP2011/074648
Publication Date:
August 23, 2012
Filing Date:
October 26, 2011
Export Citation:
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Assignee:
OMRON CORPORATION (801 Minamifudodo-cho, Horikawahigashiiru Shiokoji-dori, Shimogyo-ku, Kyoto-sh, Kyoto 30, 〒6008530, JP)
オムロン株式会社 (〒30 京都府京都市下京区塩小路通堀川東入南不動堂町801番地 Kyoto, 〒6008530, JP)
OSAKO Kazunori (801 Minamifudodo-cho, Horikawahigashiiru, Shiokoji-dori, Shimogyo-ku, Kyoto-sh, Kyoto 30, 〒6008530, JP)
尾▲さこ▼ 一功 (〒30 京都府京都市下京区塩小路通堀川東入南不動堂町801番地 オムロン株式会社内 Kyoto, 〒6008530, JP)
International Classes:
H03K17/78; G01V8/20; H01H35/00
Domestic Patent References:
WO2002101475A12002-12-19
WO2010000516A12010-01-07
Foreign References:
JP2002305433A2002-10-18
JP2003016891A2003-01-17
Other References:
See also references of EP 2677659A4
Attorney, Agent or Firm:
SUZUKI Yoshimitsu et al. (Honmachi Terada Building 6th Floor, 5-31 Kyutaromachi 2-chome, Chuo-ku, Osaka-sh, Osaka 56, 〒5410056, JP)
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Claims: