发明名称 |
ASSEMBLY FOR, AND METHOD OF, DETECTING AND SIGNALLING WHEN AN OBJECT ENTERS A WORK ZONE |
摘要 |
An assembly (19) for detecting and signalling when an object enters a work zone (14) including a plurality of transmitter-sensor pairs (24) serially connected along a section of the work zone perimeter for detecting when an object passes therethrough. Once an oject is detected, an optical warning signal is activated. The optical warning signal includes a primary strobe (26) and a plurality of relay strobes (28) positioned throughout the work zone (14). The primary strobe (26) flashes at a predetermined flash rate which is detected by a photoelectric sensor (72) in a nearby relay strobe. The nearby relay strobe begins flashing at the predetermined flash rate thereby activating another relay strobe in close proximity. This cascading strobe effect saturates the work zone (14).
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申请公布号 |
WO9522130(A1) |
申请公布日期 |
1995.08.17 |
申请号 |
WO1995US01844 |
申请日期 |
1995.02.14 |
申请人 |
TOMAN, JOHN, R. |
发明人 |
TOMAN, JOHN, R. |
分类号 |
G08B5/36;G08B5/38;G08G1/16;(IPC1-7):G08B21/00 |
主分类号 |
G08B5/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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