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    • 5. 发明授权
    • Apparatus, method, and system for monitoring and maintaining light levels at target area for lighting system
    • 用于监控和维护照明系统目标区域的光照水平的装置,方法和系统
    • US09144141B1
    • 2015-09-22
    • US14508210
    • 2014-10-07
    • Musco Corporation
    • Myron K. GordinTimothy J. BoylePhilip D. HolJeffrey A. Jacobson
    • H05B33/08H05B37/02
    • H05B37/0218H05B33/0854H05B37/0263Y02B20/46
    • A method of sensing magnitude of lumen depreciation not only of a lamp of a lighting fixture, but other factors, by sensing a relative light level external of the lighting fixture to derive not only lamp lumen depreciation but total lumen depreciation from the fixture. An apparatus of monitoring light level of one or more lighting fixtures comprises a sensor positioned external of the lighting fixture(s), a comparator adapted to compare a measured actual lumen output signal from the sensor to a pre-set reference or threshold lumen output value. An error signal is generated by the comparator if the comparison indicates actual lumen output to have dropped below the reference or threshold lumen output. An alarm or communication can be actuated by the error signal to instruct corrective action to ensure relatively constant light levels to be maintained for the lighting system over time, thus providing ongoing assurance to the end user of proper system operation.
    • 通过感测照明设备外部的相对光线水平,不仅可以从灯具中检测灯管内部的折旧,而且可以从总体流明贬值来检测照明设备的灯管的体积衰减幅度,而且可以通过其他因素来检测流明的幅度。 监视一个或多个照明器具的光级的装置包括位于照明器材外部的传感器,比较器,用于将来自传感器的测量的实际流明输出信号与预设的参考或阈值流明输出值进行比较 。 如果比较指示实际流明输出已经降到低于参考或阈值流明输出,则由比较器产生误差信号。 通过误差信号可以启动报警或通信,以指示纠正措施,以确保照明系统随时间保持相对恒定的光照水平,从而为最终用户提供正确系统操作的持续保证。