发明授权
- 专利标题: Photocontrol with radio-controlled timer and a decoder
- 专利标题(中): 光控制与无线电控制定时器和解码器
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申请号: US11498903申请日: 2006-08-03
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公开(公告)号: US07345270B1公开(公告)日: 2008-03-18
- 发明人: Richard S. Jones , Dale Thomas
- 申请人: Richard S. Jones , Dale Thomas
- 代理机构: Nexsen Pruet, LLC
- 代理商 Michael A. Mann
- 主分类号: H01J40/14
- IPC分类号: H01J40/14
摘要:
A photocontrol controls the activation of lighting based on ambient light and the time of day using a radio-controlled timer. Radio signals from a particular source of correct time, such as the National Institute for Science and Technology's WWVB radio broadcast, carry encoded time information that can be decoded by the photocontrol to ascertain the current time on start up and periodically during operation. The correct date and time information is used to synchronize the photocontrol's internal clock so that it can turn the lighting load off or on at specific times of the day in accordance with the user's needs. Thus area, business signage, and security lighting, for example, can be turned off late at night and then back on early in the morning to reduce energy consumption by the lighting during those hours when the lighting is not needed.