Illuminance estimation is key to daylight responsive lighting, and accurate estimation of illumination on workplane requires multi-point illumination, which requires distributed measurement techniques. With as few technical components as possible, we present a lightweight solution of distributed illuminance measurement to accelerate system development. Based on the open source technology, Arduino, we develop porotype of the system, including sensing unit, clock unit and storage unit, without communicating unit different from common distributed measurement. We construct device to calibrate sensing unit with three kind of correctors, and compare the difference of the measurements. Based on absolute time synchronization, we synchronize illuminance by the specified time according to the measurement interval. We carry out the experiments on illuminance estimation to verify that it cannot be completely solved with one single illuminance ratio, although it works well under some specific circumstance.

照度估计是日光响应照明的关键，而准确估计工作平面上的照度需要多点照度，而这需要分布式测量技术。我们使用尽可能少的技术组件，提出了一种轻量级的分布式照度测量解决方案，以加快系统开发。基于开源技术Arduino，我们开发了系统原型，包括传感单元，时钟单元和存储单元，而没有与普通分布式测量不同的通信单元。我们构造了用三种校正器校准传感单元的装置，并比较了测量值的差异。基于绝对时间同步，我们根据测量间隔将照度按指定的时间同步。