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An Indoor-Monitoring LiDAR Sensor for Patients with Alzheimer Disease Residing in Long-Term Care Facilities
- Title
- An Indoor-Monitoring LiDAR Sensor for Patients with Alzheimer Disease Residing in Long-Term Care Facilities
- Authors
- Joo, Ji-Eun; Hu, Yu; Kim, Sujin; Kim, Hyunji; Park, Sunyoung; Kim, Ji-Hoon; Kim, Younghyun; Park, Sung-Min
- Ewha Authors
- 박성민; 김지훈
- SCOPUS Author ID
- 박성민; 김지훈
- Issue Date
- 2022
- Journal Title
- SENSORS
- ISSN
- 1424-8220
- Citation
- SENSORS vol. 22, no. 20
- Keywords
- Alzheimer; APD; CMOS; LiDAR; LTCF; NPU; optoelectronic
- Publisher
- MDPI
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- This paper introduces an indoor-monitoring LiDAR sensor for patients with Alzheimer disease residing in long-term care facilities (LTCFs), and this sensor exploits an optoelectronic analog front-end (AFE) to detect light signals from targets by utilizing on-chip avalanche photodiodes (APDs) realized in a 180 nm CMOS process and a neural processing unit (NPU) used for motion detection and decisions, especially for incidents of falls occurring in LTCFs. The AFE consists of an on-chip CMOS P+/N-well APD, a linear-mode transimpedance amplifier, a post-amplifier, and a time-to-digital converter, whereas the NPU exploits network sparsity and approximate processing elements for low-power operation. This work provides a potential solution of low-cost, low-power, indoor-monitoring LiDAR sensors for patients with Alzheimer disease in LTCFs.
- DOI
- 10.3390/s22207934
- Appears in Collections:
- 공과대학 > 전자전기공학전공 > Journal papers
- Files in This Item:
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sensors-22-07934-v2.pdf(5.15 MB)
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