This paper introduces an autonomous payment administration solution, integrating blockchain-enabled smart contracts and robotic reality capture technologies. The construction progress is captured, analyzed, and documented respectively using sensing, machine intelligence, and as-built building information models (BIM). The progress data is stored in a distributed manner using content addressable file sharing; it is then broadcasted to a smart contract which administers payments and transfers lien rights respectively using crypto currencies/tokens and non-fungible tokens (NFT). The method was successfully implemented for payments to 7 subcontractors in two real-world commercial construction projects in Canada and United States where progress was captured using a camera-equipped unmanned aerial vehicle (UAV) and an unmanned ground vehicle (UGV) equipped with a laser scanner. The method eliminates reliance on today's heavily intermediated payment applications and showed promise for achieving accurate, efficient, and timely payment administration. Future work should further explore the connections between off- and on-chain realities.

本文介绍了一种自主支付管理解决方案，集成了支持区块链的智能合约和机器人现实捕捉技术。使用传感、机器智能和竣工建筑信息模型 (BIM) 分别捕获、分析和记录施工进度。使用内容可寻址文件共享以分布式方式存储进度数据；然后将其广播到智能合约，该合约分别使用加密货币/代币和不可替代代币 (NFT) 管理支付和转移留置权。该方法已成功实施，用于向加拿大和美国两个真实商业建设项目中的 7 个分包商付款，其中使用配备摄像头的无人机 (UAV) 和配备激光的无人地面车辆 (UGV) 捕获进度扫描器。该方法消除了对当今高度中间化的支付应用程序的依赖，并有望实现准确、高效和及时的支付管理。未来的工作应该进一步探索链下和链上现实之间的联系。