Pai Zheng

Pai Zheng
The Hong Kong Polytechnic University | PolyU · Department of Industrial and Systems Engineering

Ph.D (University of Auckland)
RAIDS is looking for talented students to compete for the HKPFS: https://www.polyu.edu.hk/gs/hkpfs/

About

141
Publications
99,207
Reads
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2,867
Citations
Introduction
Pai's research interests lie in Smart Product-Service Systems, Human-Robot Collaboration, Engineering Design Informatics, Smart Manufacturing Systems. || RAIDS website: https://www.raids.group || Wong Tit Shing Endowed Young Scholar in Smart Robotics: https://www.polyu.edu.hk/en/giving/priorities/research-and-innovation/endowed-young-scholar-scheme/ || Top 50 Global AI+X Chinese Young Scholars by Baidu (Smart Manufacturing, HRC): https://xueshu.baidu.com/usercenter/index/aischolar2022
Additional affiliations
September 2019 - present
The Hong Kong Polytechnic University
Position
  • Professor (Assistant)
January 2018 - September 2019
Nanyang Technological University
Position
  • Research Fellow
February 2012 - August 2012
Universidad Politécnica de Madrid
Position
  • European Union Erasmus Mundus Exchange Scholarship
Education
October 2013 - September 2017
University of Auckland
Field of study
  • Mechanical and Industrial Engineering
September 2010 - January 2013
Beihang University (BUAA)
Field of study
  • Mechanical Engineering
September 2006 - July 2010
Huazhong University of Science and Technology
Field of study
  • Computer Science and Technology

Publications

Publications (141)
Article
Full-text available
Empowered by advanced cognitive computing, industrial IoT, and data analytics techniques, today’s smart manufacturing systems are ever-increasingly equipped with cognitive capabilities, towards an emerging and promising Self-X cognitive manufacturing network. Nevertheless, to our best knowledge, the readiness of ‘Self-X’ levels (e.g., self-configur...
Article
Full-text available
Recently human-robot collaboration (HRC) has emerged as a promising paradigm for mass personalization in manufacturing owing to the potential to fully exploit the strength of human flexibility and robot precision. To achieve better collaboration, robots should be capable of holistically perceiving and parsing the information of a working scene in r...
Poster
Full-text available
Transactions of the ASME Journal of Manufacturing Science and Engineering
Article
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Human-robot collaboration (HRC) allows seamless communication and collaboration between humans and robots to fulfil flexible manufacturing tasks in a shared workspace. Nevertheless, existing HRC systems lack an efficient integration of robotic and human cognitions. Empowered by advanced cognitive computing, this paper proposes a visual reasoning-ba...
Article
Full-text available
Predictive Maintenance (PdM) has continually attracted interest from the manufacturing community due to its significant potential in reducing unexpected machine downtime and related cost. Much attention to existing PdM research has been paid to perceiving the fault, while the identification and estimation processes are affected by many factors. Man...
Article
In human-robot collaborative (HRC) manufacturing systems, how the collaborative robots engage in the collaborative tasks and complete the corresponding work in a timely manner according to the actual state has been a critical factor that hinders the efficiency of HRC. Inappropriate collaborative behaviors will result in a poor perceptual experience...
Article
Digital twin technology has been gradually explored and applied in the machining process. A digital twin machining system creates high-fidelity virtual entities of physical entities to observe, analyze, and control the machining process in real-time. However, the current digital twin machining systems lack sufficient adaptability because they are u...
Article
Full-text available
The rapid development of information and communication technologies has facilitated machining condition monitoring toward a data-driven paradigm, of which industrial Internet-of-Things (IIoT) serves as the fundamental basis to acquire data from physical equipment with sensing technologies as well as to learn the relationship between the system cond...
Article
3D printing has drawn tremendous attention in Industry 4.0. Nowadays, with the ever-increasing consumers' requests for 3D printing services, there lies a big challenge to eliminate the unbalanced demands and supplies of 3D printing resources in a geographically distributed environment. Cloud manufacturing, as a newly emerged service-oriented manufa...
Poster
Full-text available
This special session aims to present the state-of-the-art approaches, tools, systems, and practical cases of HDT toward HCPS, including the following topics, but are not limited to: • Theory, investigation, survey, and review of HDT for HCPS • HDT in Human-Robot Collaboration (HRC) • Big data analytics for HDT • Data management and data policies in...
Poster
Full-text available
This special session aims to present state-of-the-art approaches, tools, systems, and cases to explore more applications of AR-assisted DT for futuristic smart manufacturing. To contribute to those areas, this special session includes the following topics, but are not limited to: • AR-assisted cognitive DT • AR-assisted DT for on-demand fabrication...
Poster
Full-text available
In line with the human-centric concerns of Industry 5.0, modern factories are striving for an ever-higher degree of flexible and resilient production in mass personalization with increasing complicatedness and complexity. To achieve it, human-robot collaboration (HRC) becomes a prevailing strategy, which combines high accuracy, strength, and repeat...
Poster
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Goal: Advanced manufacturing industries worldwide are revolutionizing from technology-driven to value-driven development, where ICT infrastructure built upon the automation, informatization and digitalization process has gradually become a common setting in manufacturing companies. Due to the data-rich and knowledge-intensive nature, manufacturing...
Poster
Full-text available
With the rapid development of digital technologies, Smart Product-Service System (Smart PSS), as an emerging type of PSS, is defined as an IT-driven value co-creation business strategy, by leveraging smart, connected products and its generated services into a single solution to meet individual customer needs. In this context, unlike conventional pr...
Article
Sitting posture recognition is essential in preventing work-related musculoskeletal disorders (WMSDs). WMSDs are of huge concern for office workers whose working process is averagely 81.8% sedentary. Prevailing studies have utilized cameras, wearables, and pressure sensors to recognize sitting postures. The cameras and wearables can achieve accurat...
Article
Recently, the futuristic industry and society have caught increasing attention, that is, on Industry 5.0 and Society 5.0. Industry 5.0 is announced by European Commission toward a sustainable, human-centric, and resilient European industry. Society 5.0 is proposed by Japan Cabinet to balance economic advancement with the reso�lution of social probl...
Conference Paper
Full-text available
Human-robot collaboration (HRC) plays a crucial role in agile, flexible, and human-centric manufacturing towards the mass personalization transition. Nevertheless, in today’s HRC tasks, either humans or robots need to follow the partners’ commands and instructions along collaborative activities progressing, instead of proactive, mutual engagement....
Poster
Full-text available
Over the last decade, Industry 4.0 has focused more on digitalization and AI-driven technologies for increasing the efficiency and flexibility of production. In early 2021, the European Commission proposed the concept of “Industry 5.0”, which complements the existing “Industry 4.0” paradigm. However, since the European Commission released its Indus...
Poster
Full-text available
https://www.mdpi.com/journal/sensors/special_issues/Data_Smart_Manufacturing
Article
Advances in human-centric smart manufacturing (HSM) reflect a trend towards the integration of human-in-the-loop with technologies, to address challenges of human-machine relationships. In this context, the human-cyber-physical systems (HCPS), as an emerging human-centric system paradigm, can bring insights to the development and implementation of...
Article
Contour detection extracts accurate object boundaries from natural images, which plays a critical role in the vision-based inspection. However, contour detection is still challenging in yarn quality inspection tasks, since the current methods pursue global high-precision contours while ignoring detecting the boundaries of interest from intertwined...
Article
In today’s prevailing manufacturing paradigm of mass personalization, neither human operators nor robots alone can perform all assembly tasks efficiently. To overcome it, human-robot collaborative assembly shows its great potentials to ensure the flexibility of human operations with high reliability of robot assistance. However, it is often challen...
Article
With the ever-increasing demand for personalized product functions, product structure becomes more and more complex. To design a complex engineering product, it involves mechanical, electrical, automation and other relevant fields, which requires a closer multidisciplinary collaborative design (MCD) and integration. However, the traditional design...
Article
Full-text available
Human-robot collaborative assembly (HRCA) is vital for achieving high-level flexible automation for mass personalization in today's smart factories. However, existing works in both industry and academia mainly focus on adaptive robot planning, while seldom consider human operator's intentions in advance. Hence, it hinders the HRCA transition toward...
Article
In small batch and customized production, human-robot collaborative assembly (HRCA) is an important method to deal with the production demand of new-energy vehicles, which have the characteristics of rapid change and growth of personal needs. However, due to the difficulty of reusing historical assembly knowledge, it can not be used to effectively...
Article
Full-text available
Vision-based online defect recognition can provide insights for laser welding quality control systems. Although the visual signal contains richer quality information than the one-dimensional signal, the quality features contained in the visual signal are more abstract. To improve the explainability of current convolutional neural networks for laser...
Article
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The teleoperation and coordination of multiple industrial robots play an important role in today's industrial internet-based collaborative manufacturing systems. The user-friendly teleoperation approach allows operators from different manufacturing domains to reduce redundant learning costs and intuitively control the robot in advance. Nevertheless...
Article
As an emerging digital servitization paradigm, smart product-service system (Smart PSS) leverages smart, connected products and their generated services to work as a solution bundle to improve individual user satisfaction. As a complex solution bundle at both system and product level, its iterative design differs from the existing ones mainly in tw...
Article
The advancement of Internet-of-Things (IoT) and artificial intelligence contribute to the prevailing development of smart office, which is capable of understanding employees’ context and adapting to their demands. The smart office brings numerous opportunities for delivering prevention and control measures of health issues associated with office wo...
Chapter
Complex product family design and optimization has been a prevailing challenge for enabling mass customization and personalization paradigms with many effective methods featured to manage the high variety of customized product components with extended life cycle concerns. However, these existing approaches either largely depend on the qualitative m...
Article
Full-text available
Digital twin technology can build virtual replicas of physical entities to observe, analyze, and control the machining process. The virtual model always simplifies the physical entity as limited by the current technical level, so that the digital twin model cannot fully reflect the physical entity with high-fidelity, leading to a particular error r...
Poster
Full-text available
Mass Personalization is a prevailing business trend of offering bespoke products and services for each individual customer, manufactured and delivered with mass production efficiency. Facilitated by the cutting-edge information and communication technologies involved in the digital transformation, the high volume, velocity, variety, veracity, and v...
Article
The trend of customized production results in the demand for higher level of automation, in which artificial intelligence decision-making dominates. As the core of smart manufacturing systems, intelligent services stand a significant role in the analysis, prediction, and adjustment of production process, which is inseparable from the effective sema...
Article
Full-text available
Smart product-service system (Smart PSS) is a heterogeneous and integrated system in which manufacturers/service providers deliver integrated and customized product-service bundles (PSBs) in a sustainable manner. Smart PSS configuration, a process of selecting proper PSBs based on user requirements, is expected to be further flexible to adjust the...
Conference Paper
Full-text available
Human-robot collaboration (HRC) is critical to today's tendency towards high-flexible assembly in manufacturing. Human action recognition, as one of the core prerequisites for HRC, enables industrial robots to understand human intentions and to execute planning adaptively. However, existing deep learning-based action recognition methods rely heavil...
Poster
Full-text available
A digital twin is a real-time digital/virtual representation of a physical product or process. The digital twin technology is centered around "individualized" digital models that capture the unique characteristics of individual product or process units. These models allow decision-making to be optimized for each product or process unit, rather than...
Article
Full-text available
Based on advanced information and communication infrastructures and enabled with the cutting-edge information processing of cognitive computing, existing smart manufacturing systems have foreseen a prevailing tendency that approaches a higher automation level, i.e., Self-X (e.g., Self-configuration/optimization/adaptation). However, the readiness o...
Article
Full-text available
Machine tools play a pivotal role in the manufacturing world since their performance significantly affects the product quality and production efficiency. In the era of Industry 4.0, machine tools are expected to have a higher level of accessibility, connectivity, intelligence, adaptivity, and autonomy. With the rapid development and application of...
Conference Paper
Full-text available
In the trend of digital servitization, manufacturing companies have been transforming their business paradigms to Smart product-service systems (Smart PSS) by integrating products and associated services as bundles. To support the knowledge-intensive process of Smart PSS development, massive domain knowledge should be well-organized and reused. How...
Conference Paper
The dissemination of digital technologies enabled massive data generation and new forms of cooperation. Hence, a new type of innovation named digital innovation emerged. Digital innovation has evolved in different domains and contexts, one of which is called Smart Product-Service System (Smart PSS). Many research works have been done on the develop...
Article
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With the trend of ‘digitalization’ and ‘servitization’ in the manufacturing industry, numerous product-service systems fail to seize a market share and encounter an imbalance between digital investments and expected revenues. This phenomenon is probably caused by the insufficient evaluation on user experience and by the lag between user requirement...
Conference Paper
Full-text available
The estimation of 6D pose of industrial parts is a fundamental problem in smart manufacturing. Traditional approaches mainly focus on matching corresponding key point pairs between observed 2D images and 3D object models via hand-crafted feature descriptors. However, key points are hard to discover from images when the parts are piled up in disorde...
Article
Full-text available
Human-robot collaboration (HRC) has attracted strong interests from researchers and engineers for improved operational flexibility and efficiency towards mass personalization. Nevertheless, existing HRC development mainly undertakes either human-centred or robot-centred manner reactively, where operations are conducted by following the pre-defined...
Book
Full-text available
Rapid developments in information and communication technologies, artificial intelligence, and digital technologies have driven today's industries toward the so-called "digital servitization era." As a result, a promising IT-driven business paradigm, known as Smart Product-Service Systems (Smart PSS), has emerged, where a large number of low-cost,...
Article
Intelligent products and services are integrated into Smart product-service systems (PSS) through information and communication technology (ICT). Various feasible Smart PSS designs are usually created in the design stage, and the design concept selection directly affects the delivery performance of the Smart PSS. However, existing methods often req...
Article
Full-text available
The material removal rate (MRR) plays a critical role in the chemical mechanical planarization (CMP) process in the semiconductor industry. Many physics-based and data-driven approaches have been proposed to-date to predict the MRR. Nevertheless, most of them neglect the underlying equipment structure containing essential interaction mechanisms amo...
Article
The Digital Twin concept, as the cutting edge of digital manufacturing solution for modern industries, plays a significant role in the Industry 4.0 era. One key enabling technology for developing a DT is the information modeling of physical products, so as to combine the physical world with the cyberspace more extensively and closely. Therefore, th...
Article
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The rapid development of information and communication technologies has enabled a value co-creation paradigm for developing industrial products and services, where massive heterogeneous data and multidisciplinary knowledge are generated and leveraged. In this context, Knowledge Graph (KG) emerges as a promising tool to elicit, fuse, process, and ut...
Article
The rapid development of information and communication technologies has triggered the proposition and implementation of smart manufacturing paradigms. In this regard, efficient allocation of smart manufacturing services (SMSs) can provide a sustainable manner for promoting cleaner production. Currently, centralized optimization methods have been wi...
Article
To proactively fulfill multiple stakeholders’ needs in the engineering solution design process, the knowledge recommendation approach is adopted as a key element in the knowledge management system. Nevertheless, most existing knowledge recommendation approaches cannot simultaneously meet the higher standard of in-context accuracy and diversity. To...
Preprint
Full-text available
At present, digital twin has been widely concerned by domestic and international scholars and industry. However, the definition of digital twin is becoming more and more ambiguous. There are inconsistencies in understanding and different expressions of definitions for digital twinning techniques in application and research. From the perspective of...
Chapter
Smart PSS, as a prevailing business paradigm driven by the cutting-edge digital technologies, assists the digital servitization transformation by its various implementations throughout the engineering product lifecycle. To reveal its practical values, this chapter conducts a comprehensive survey of the existing technical implementations of Smart PS...
Chapter
Smart product-service system (Smart PSS), as a typical type of digital servitization paradigm, has attracted increasing attention recently in both academia and industry. This chapter aims to provide the fundamental basis for Smart PSS and its development. First, its definition and scope, together with the clarification of some basic notions, are in...
Chapter
Responding to a call for “doing more with less material”, higher sustainability is continuously pursued in companies' product design/development endeavors. To promote sustainability, two prevailing concepts have been widely adopted, namely, the smart circular system, which reduces raw material consumption, and the smart product-service system (PSS)...
Chapter
Unlike the existing product-service configuration systems available, three unique characteristics lie in the Smart PSS solution family configurations, namely, (1) changing/upgrade of embedded software, as a service, can often replace the physical components changes; (2) managing the in-context latent user requirements during usage by leveraging mas...
Chapter
The focus of today's manufacturing industry has dramatically shifted from a manufacturer-dominating to a customer-centric manner by involving active user participation along its product life-cycle. In such an era, the rapid development of information and communication technology (ICT) enables a promising market of IT-driven product, i.e., smart, co...
Chapter
Complex product family design and optimization have been playing a critical role in today's mass personalization era to allow design changeability and upgrade in an adaptable manner. Nevertheless, existing studies have no context-aware testbed to aid stakeholders' design and optimization throughout engineering product life cycle. To overcome this c...
Chapter
To address the closed-loop self-adaptable design issue of Smart PSS, a design entropy theory is introduced in this chapter, considering both design and reverse design holistically in a self-adaptable manner. First, a comparative study among eight typical prescriptive design theories is illustrated in Chapter 4.1, revealing their limitations in hand...
Chapter
Product-service system (PSS), as a typical service-oriented business model, has been existing for more than two decades with large impact and fruitful outcomes to guide industrial servitization transformation. Unlike many existing works reviewing PSS from a business-oriented perspective, this chapter holds an interesting view from technical perspec...
Chapter
In this book, the three key questions raised in Chapter 1 have been holistically answered in the previous chapters, including the significance, uniqueness, and development methodologies of Smart PSS. They together set the boundaries and essence of this prevailing paradigm. Nevertheless, along with its evolvement, many novel issues will be raised an...
Article
Multi-commodity rebalancing plays a critical role before and during the attack of large-scale disasters. In practice, some relief centers can be out of reach from the ground for vehicles due to the road disruption. Accordingly, alternative transportation systems are essential to maximize fairness and minimize the total transportation time, simultan...
Article
Full-text available
Industrial smart product-service system (ISPSS), as an emerging industrial digital servitization paradigm, has attracted ever-increasing attentions from both industries and academics recently. The prevailing adoption of cutting-edge information and communication technologies, digital technologies and artificial intelligence has enabled the engineer...
Poster
Full-text available
Link for the SI: https://www.mdpi.com/journal/sustainability/special_issues/smart_product_service Aim and Scope: Responding to a call for “doing more with less material” in Circular Economy, two concepts are proposed for promoting sustainability in the industrial system. One is Circular System aimed to achieve ‘less material’, transforming the lin...
Article
Full-text available
Virtual reality (VR) has been applied in many different sectors, including manufacturing and engineering industries as well as in the healthcare industry where VR-equipped health products can provide better prevention, rehabilitation, and palliative care in a user-friendly environment. The smart product-service system (PSS) aims to achieve better u...
Poster
Full-text available
The rapid implementation of the third-wave of IT innovation (e.g. smart, connected products, Internet-of-Things (IoT)) and the fourth Industrial Revolution (e.g. advanced operation technologies (OTs), Cyber-Physical Systems) have enabled the prevailing industrial digital transformation (i.e. digitalization), where OT and IT are integrated in an Ind...
Article
Full-text available
Engineering product family design and optimization in complex environments has been a major bottleneck in today's industrial transformation towards smart manufacturing. Digital twin (DT), as a core part of cyber-physical systems (CPS), can provide decision support to enhance engineering product lifecycle management workflows via remote monitoring a...
Article
Full-text available
With the rapid advancement of cyber-physical systems, Digital Twin (DT) is gaining ever-increasing attention owing to its great capabilities to realize Industry 4.0. Enterprises from different fields are taking advantage of its ability to simulate real-time working conditions and perform intelligent decision-making, where a cost-effective solution...