| 发明名称 | Light grid and method of monitoring a monitored zone | ||
| 摘要 | A light grid (10) is provided having a plurality of light transmitters (14) for transmitting a respective monitoring light beam (38) and having a plurality of associated light receivers (22) to generate an objection detection signal (42a-d) depending on the reception of the monitoring light beam, having a control (30, 32) which is configured to divide the monitoring light beams (30) into groups and to consecutively activate the monitoring light beams (38) of the groups, wherein, in a group-wise parallel monitoring sequence, a respective monitoring light bream (34) of each group is activated in parallel, as well as having a first bus (34) over which the object detection signals can be output to the control (32) by the light receivers (26, 26). The light receivers (22, 26) are in this respect configured to output the object detection signals to the control (32) in a time multiplex process. | ||
| 申请公布号 | US9274510(B2) | 申请公布日期 | 2016.03.01 |
| 申请号 | US201314038058 | 申请日期 | 2013.09.26 |
| 申请人 | SICK AG | 发明人 | Burger Jurgen;Kienzler Stefan |
| 分类号 | G05B9/02;G01V8/18;G01D5/26;F16P3/14;G01V8/20;G10K15/02 | 主分类号 | G05B9/02 |
| 代理机构 | Nath, Goldberg & Meyer | 代理人 | Nath, Goldberg & Meyer ;Meyer Jerald L.;Grisham Rury L. |
| 主权项 | 1. A light grid (10) having a plurality of light transmitters (14) for transmitting a respective monitoring light beam (38) and having a plurality of associated light receivers (22) to generate an object detection signal (42a-d) depending on the reception of the monitoring light beam, having a control (30, 32) which is configured to divide the monitoring light beams (38) into groups and to consecutively activate the monitoring light beams (38) of the groups, wherein, in a group-wise parallel monitoring sequence, a respective monitoring light beam (38) of each group is activated in parallel, as well as having a first bus (34) via which the object detection signals can be output to the control (32) by the light receivers (22, 26), wherein the light receivers (22, 26) are configured to output the object detection signals to the control (32) in a time multiplex process, the object detection signal (42a-d) is a switching pulse, the time multiplex process is implemented by a delay applied to the switching pulse, and the delay is a delay common to all monitoring light beams (38) of a group and a delay differing between the groups. | ||
| 地址 | Waldkirch DE | ||