发明名称 |
AUTOMATED DISPENSER WITH SENSOR ARRANGEMENT |
摘要 |
An automatic electrically powered dispenser for dispensing a product stored in the dispenser , which includes an active IR sensor system for detecting a user.. The IR sensor system including at least one IR emitter and at least one IR receiver. The IR sensing system is arranged to scan for the presence of a possible user at a certain scanning rate. The sensor control system supplies the active IR emitter(s) with a first current which is constant during one or more single scans and is altered to a different, second current for further scanning. The first and second currents are determined on the basis of a signal strength of the average received IR which is received by the IR receiver(s) during a number of previous single scans. In a simplified system, the average value of the most recently received IR values may be compared to a standard value set in the control system to alter the current supplied to the IR emitter(s). Such a system optimises detection and saves power. |
申请公布号 |
CA2614793(A1) |
申请公布日期 |
2007.01.18 |
申请号 |
CA20052614793 |
申请日期 |
2005.07.13 |
申请人 |
SCA HYGIENE PRODUCTS AB |
发明人 |
NG, HONG;MOK, KIN LUN;MOK, KING LUN |
分类号 |
H03K17/94;A47K10/34;G01V8/10 |
主分类号 |
H03K17/94 |
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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