发明名称 |
MIKRODATAMAT-STYRET LYSTAEPPE |
摘要 |
A microprocessor-controlled light screen comprises a plurality of light transmitters and light receivers arranged in a holder on one side of the screen opening, and a corresponding number of light receivers and light transmitters arranged in a holder on the opposite side of the screen opening. Mutually opposite light transmitters and light receivers are sequentially actuable in pairs from a data processor over a given period of time. The light screen is characterized in that the data processor for each light transmitter and light receiver respectively is programmed to transmit a train of light pulses (codes) and to receive and change the received codes and to re-transmit the changed code to a receiver on the opposite side. The data unit on one side functions as a Master, and on the other side as a Slave. The data units are programmed to change (invert) received codes, and to transmit the changed codes to the opposite side. |
申请公布号 |
DK165031(C) |
申请公布日期 |
1993.02.08 |
申请号 |
DK19840003912 |
申请日期 |
1984.08.15 |
申请人 |
INNOVATIONSTEKNIK, AKTIEBOLAGET INSTITUTET FOER |
发明人 |
JOENSSON, NILS |
分类号 |
B23Q11/00;B30B15/00;F16P3/14;G01V8/20 |
主分类号 |
B23Q11/00 |
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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