Plant-Coupled Energy Harvesting System for Long-Term Environment Monitoring

SHAN Jiaze; ZHAO Dazhe; ZHONG Junwen

doi:10.12263/DZXB.20250178

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Plant-Coupled Energy Harvesting System for Long-Term Environment Monitoring

PAPERS | 更新时间：2026-06-16

- Plant-Coupled Energy Harvesting System for Long-Term Environment Monitoring
- ACTA ELECTRONICA SINICA Vol. 54, Issue 3, Pages: 1337-1347(2026)
- 作者机构：
  
  澳门大学机电工程系，澳门 999078
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(52522513);Science and Technology Development Fund, Macao SAR(0117/2024/AMJ)
- DOI：10.12263/DZXB.20250178
  CLC： TM919;X851
- Received：10 March 2025，
  
  Accepted：06 March 2026，
  
  Published：25 March 2026
- 稿件说明：
移动端阅览
单嘉泽, 赵达哲, 钟俊文. 用于长期环境监测的植物耦合能量收集系统[J]. 电子学报, 2026, 54(03): 1337-1347.

SHAN Jiaze, ZHAO Dazhe, ZHONG Junwen. Plant-Coupled Energy Harvesting System for Long-Term Environment Monitoring[J]. Acta Electronica Sinica, 2026, 54(03): 1337-1347.
单嘉泽, 赵达哲, 钟俊文. 用于长期环境监测的植物耦合能量收集系统[J]. 电子学报, 2026, 54(03): 1337-1347. DOI：10.12263/DZXB.20250178

SHAN Jiaze, ZHAO Dazhe, ZHONG Junwen. Plant-Coupled Energy Harvesting System for Long-Term Environment Monitoring[J]. Acta Electronica Sinica, 2026, 54(03): 1337-1347. DOI：10.12263/DZXB.20250178

摘要

长期环境监测设备作为物联网的关键节点，在智慧城市系统中发挥着至关重要的作用。然而，为这些设备提供可持续的长期电力供应仍然是一项重大挑战。在本研究中，我们提出了一种基于绿色植物叶片的植物耦合能量收集系统（Plant-Coupled Energy Harvesting System， PCEHS），用于从周围环境中收集能量并支持长期环境监测设备运行。植物叶片广阔的生物界面为耦合环境中的电磁能量提供了理想的媒介，其角质层与细胞层在工频电场下可等效为电容-电阻结构，能够有效汇聚环境中的电磁辐射。实验结果表明，玫瑰书带木、辐叶鹅掌柴、红鸡蛋花等多种类型的植物叶片在50 Hz工频电场作用下均能够产生有效的电能输出，并且在叶片遭受纵向撕裂、横向撕裂等物理损伤的情况下仍能保持稳定的能量供应，验证了系统良好的鲁棒性。其中，辐叶鹅掌柴因叶片宽大平坦、叶脉网络发达，展现出最优的能量收集性能，被选为后续实验的研究对象。该系统采用事件驱动型间歇工作与双级异构储能架构，通过小容量电容器快速积累能量并周期性唤醒电源管理芯片，实现了极低的静态功耗。本研究成功将PCEHS部署于实际办公场景，以植物盆栽叶片为能量耦合介质，通过笔记本电脑充电器产生的环境电场，实现了长达数天的温湿度连续监测，数据每5 min通过无线网络上传至手机终端。实验数据表明，该系统单次信号传输能耗低至0.27 mJ，5 min 监测周期总能耗约为2.455 mJ，充分验证了PCEHS在超低功耗下的稳定运行能力，可满足长期监测需求并适配各类能源敏感场景。凭借其稳定性、可持续性与环境友好特性，PCEHS无需接触电力线，也不依赖光照或机械运动，在绿色建筑、智能办公等典型低频电磁场场景中展现出广阔的应用前景。该技术有望在城市管理智能化与效能提升方面发挥关键作用，为智慧城市的可持续发展提供有力支撑。

Abstract

Long-term environmental monitoring devices serve as critical nodes in the Internet of Things and play an essential role in smart city systems. However

providing sustainable long-term power supply for these devices remains a significant challenge. In this study

we propose a plant-coupled energy harvesting system (PCEHS) based on green plant leaves. This system harvests energy from the surrounding environment to support long-term environmental monitoring devices. The extensive biological interface of plant leaves provides an ideal medium for coupling electromagnetic energy from the environment. The cuticle and cell layers of leaves can be equivalent to a capacitor-resistor structure under power frequency electric fields. This structure effectively converges ambient electromagnetic radiation. Experimental results demonstrate that multiple plant species

including Clusia rosea

Schefflera actinophylla

and Plumeria rubra

generate effective electrical output under 50 Hz power frequency electric fields. The system maintains stable energy supply even when leaves suffer physical damage such as longitudinal tearing or horizontal tearing. This verifies the strong robustness of the system. Among the tested species

Schefflera actinophylla exhibits optimal energy harvesting performance due to its broad

flat leaves and well-developed vein networks. Therefore

this species is selected as the research subject for subsequent experiments. The system adopts an event-driven intermittent operation architecture with dual-stage heterogeneous energy storage. A small-capacitance capacitor rapidly accumulates energy and periodically wakes up the power management chip. This design achieves extremely low static power consumption. We successfully deploy the PCEHS in an actual office environment. Using potted plant leaves as the energy coupling medium

the system utilizes the ambient electric field generated by a laptop adaptor. It achieves continuous temperature and humidity monitoring for several days. Data are uploaded to mobile terminals via wireless networks every five minutes. Experimental data show that the system consumes only 0.27 mJ per signal transmission. The total energy consumption over a five-minute monitoring cycle is approximately 2.455 mJ. These results fully verify the stable operation capability of PCEHS under ultra-low power conditions. The system meets long-term monitoring requirements and adapts to various energy-sensitive scenarios. With its stability

sustainability

and environmental friendliness

PCEHS requires no contact with power lines. It does not depend on light exposure or mechanical motion. The system demonstrates broad application prospects in typical low-frequency electromagnetic field scenarios such as green buildings and smart offices. This technology is expected to play a key role in enhancing the intelligence and efficiency of urban management. It provides strong support for the sustainable development of smart cities.

关键词

Keywords

references

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