在傳統的建築物照明系統中，光的不均勻分佈會降低人類的光線體驗並浪費照明能量。使用光傳感器來感測環境光的信息和反饋來控制照明燈具是一種可行的解決方案。然而，光傳感器需要大量而廣泛的部署以控制整個建築物空間的照明裝置，為了傳感器系統的供電而會導致佈線和更換問題。本論文提出了一種智慧型光處理器，它結合光傳感器和光能獵能器組成能源自主傳感器系統。
通過將多個光電二極體放置在不同位置和在透鏡輔助下增加可辨別性，每個光電二極體的輸出功率將是不同的並且與入射光相關。為了同時光能獵能和感測，智慧型光處理器使用多輸入直流-直流轉換器，每個輸入連接到光電二極體。當光電二極體達到其最大功率點時，直流-直流轉換器執行操作並由光電二極體向存儲元件供電。光電二極體的獵能週期與功率成正比。通過對每個光電二極體獵能週期計數和進行數據處理，可以獲得諸如光強度和角度的光資訊。
本論文提出的智慧型光處理器有兩個積體電路實現，第一個採用台灣積體電路製造股份有限公司提供的 0.35μm 2P4M 3.3V混合信號互補式金氧半工藝製造，芯片面積為2.04mm2。它具有16個輸入，198nA控制器電流消耗及藉由微控制器輔助數據處理可實現高達±50º的光角度感測範圍。第二種採用台灣積體電路製造股份有限公司提供的0.18μm 1P6M 1.8V混合信號互補式金氧半工藝製造，芯片面積為1.52mm2。它具有9個輸入，55nA控制器電流消耗和進一步集成微控制器功能的單晶片。

In traditional lighting system of buildings, non-uniform distribution of light degrades human light experience as well as wasting lighting energy. Using light sensors for sensing information of environment light and feedback to control lighting fixtures is a solution. However, light sensors need large amount and widely deployed to control lighting fixtures of whole buildings space, which can lead to wiring and replacement problem due to powering of sensor system. This thesis proposed an intelligent light processor (ILP) which integrated light sensor and light energy harvester to form the energy autonomous sensor system.
By placing multiple photodiodes (PDs) on different position with lens assistance to increase discernibility, output power of each PD will be difference and correlated to the incident light. To simultaneously light energy harvest and light sense, the proposed ILP using multiple input DC-DC converter with each input connected to PDs. When PDs reach its maximum power point, the DC-DC converter performs operation and delivers power from PDs to storage element. The harvested period of PDs is proportional to PDs power. By counting each PD harvested period and data processing, the light information such as light intensity and angle can be obtained.
The proposed ILP has two IC implementations, the first is fabricated in TSMC 0.35μm 2P4M 3.3V Mixed-Signal CMOS process with chip area of 2.04mm2. It features 16 inputs, 198nA controller current consumption and up to ±50º light angle detection range with microcontroller (MCU) assisted in data process. The second is fabricated in TSMC 0.18μm 1P6M 1.8V Mixed-Signal CMOS process with chip area of 1.52mm2. It features 9 inputs, 55nA controller current consumption and further integrated MCU function into single chip.

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