An electrohydrodynamic (EHD) printing method with nanosilver ink for flexible electronics

2020 ◽  
Vol 34 (17) ◽  
pp. 2050154
Author(s):  
Xinyu Zhang ◽  
Xiang Chi ◽  
Zongan Li ◽  
Zhe Yuan ◽  
Jiquan Yang ◽  
...  
Keyword(s):  
Flexible Electronics ◽  
Radio Frequency Identification ◽  
Dc Voltage ◽  
Air Supply ◽  
Frequency Identification ◽  
Printing System ◽  
High Flexibility ◽  
Radio Frequency Identification Devices ◽  
Printing Method ◽  
Text Condition

In this paper, the electrohydrodynamic (EHD) printing method for the flexible electronics with nanosilver ink was studied. The effect of DC voltage and air pressure on the printed nanosilver line was experimentally researched on the printing system. The necessary working voltage was above 600 V DC voltage, and when the voltage reached 1100 V, the line width increased from [Formula: see text] to [Formula: see text]. The air supply of [Formula: see text] resulted an obviously larger width than that of [Formula: see text], but the printing process was unstable on the [Formula: see text] condition. The EHD printing was applied to realize nanosilver ink line ranged from [Formula: see text] to [Formula: see text] and a kind of antenna pattern for radio frequency identification devices (RFID) was fabricated. This kind of EHD printing method has the advantages of high flexibility and printing resolution and shows potential prospects in the field of flexible electronics.

Manufacturing ultra-high-frequency radio frequency identification tag antennas by multilayer printings

2009 ◽  
Vol 224 (1) ◽  
pp. 149-156 ◽  
Author(s):  
B-O Choi ◽  
C H Kim ◽  
D S Kim
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
High Frequency ◽  
Gravure Printing ◽  
Offset Printing ◽  
Printed Antennas ◽  
Ultra High Frequency ◽  
Frequency Identification ◽  
Printing System ◽  
Printing Method

In spite of the advantages of high throughput and a low manufacturing cost conferred by the gravure printing method, it has been shown that antennas printed using the gravure printing method do not offer satisfactory performance because of the limitations of the conductive materials used as ink. In this article, a roll-to-roll gravure-offset printing system is proposed for the manufacturing of printed ultra-high frequency radio frequency identification (RFID) tag antennas. Antennas printed using the multi-layer gravure-offset system are also demonstrated with their performances. The gravure-offset printing system mainly consists of three printing parts, i.e. drying units, vision systems, and register control systems for multi-layer printings. In the identification range test using an RFID reader, compared to the conventional RFID tags with copper-etched antennas, which show the identification range of about 3.2 m on average, the three-layer printed antennas with bonded tag chips exhibit the identification range of about 1.8 m on average (i.e. the performance of about 60 per cent of conventional copper-etched antennas), which implies that the printed antennas could be applicable to real fields.

Research on Signal Timing Method of Intersection Based on RFID

2011 ◽  
Vol 84-85 ◽  
pp. 410-414
Author(s):  
Wei He ◽  
Jie Xiong
Keyword(s):  
Comparative Analysis ◽  
Radio Frequency Identification ◽  
Main Parameter ◽  
Control Method ◽  
Research Work ◽  
Signal Timing ◽  
Key Points ◽  
Frequency Identification ◽  
New Research ◽  
Radio Frequency Identification Devices

Based on the RFID (Radio Frequency Identification Devices), this paper presents new research work of signal timing intersection in the aspects of the key points of design, the main parameter and timing methods. Finally, the intersection of signal timing of fuzzy control method based on RFID is proposed through comparative analysis of the intersection of several traditional signal timing methods.

scholarly journals Real Time Tracing and Alerting System for Vehicles and Children to Ensure Safety and Security Using Labview

2021 ◽  
Author(s):  
R. Deepalakshmi ◽  
R. Vijayalakshmi ◽  
S. Lavanya ◽  
T.K. Rakshitha Rasmi ◽  
S.B. Sathiya
Keyword(s):  
Radio Wave ◽  
Radio Frequency Identification ◽  
Warning System ◽  
Alerting System ◽  
Frequency Identification ◽  
Student Information ◽  
Information Transfers ◽  
Radio Frequency Identification Devices ◽  
Monitoring Area ◽  
Exact Point

The Absolute time monitoring, detecting and Alerting System for vehicles and children is required to trace and transmit the collected information at regular intervals to ensure safety and security of children. The illustration of the Realtime detecting and warning System consists of two units: Tracing Unit that traces the location information, transfers to the monitoring area, records the data in the database and takes the help of these data to locate the exact point of area of the vehicle with Google/other maps. The second unit is Alerting Unit that tracks the students using active Radio Frequency Identification Devices (RFID)which will be placed on student ID card. radio-wave trans-receiver transmits a common radio wave which is received by the RFID in the ID card. This radio-wave is modified by the RFID’s coil and resent to the receive RFID tags are also used for attendance which is updated directly to the database and displays the other student information.

iParking

2017 ◽  
Vol 8 (2) ◽  
pp. 1-24
Author(s):  
Ankita Khadsare ◽  
Gauri Jadhav ◽  
Sayali Mali ◽  
Shivani Nanaware
Keyword(s):  
Radio Frequency Identification ◽  
Metropolitan Areas ◽  
Android Application ◽  
Infrared Sensors ◽  
Design And Implementation ◽  
Ir Sensors ◽  
Parking System ◽  
Frequency Identification ◽  
Smart Parking ◽  
Radio Frequency Identification Devices

Finding a parking in most of the metropolitan areas, especially during the rush hours, is difficult for drivers nowadays. The iParking system proposed in this paper allows drivers to find and reserve the vacant parking slots through their smartphones and additionally support the principles of “Smart City.” The design and implementation of this proposed system called Reservation Based Smart Parking System (RSPS) is based on cloud computing and android application and finds availability of nearest parking slots. The objective is to reduce the time in finding the parking lots and avoid unnecessary traveling. The technology proposed in this paper is Infrared Sensors (IR Sensors) used for detecting the occupancy of parking slots. The iParking uses Radio Frequency Identification Devices (RFID) to identify and track a car. The methodology proposed in this paper can easily be compared with existing parking system in terms of reducing the fuel consumption.

eHealth and Ethics

2011 ◽  
pp. 454-465 ◽  
Author(s):  
Diane Whitehouse ◽  
Penny Duquenoy
Keyword(s):  
Information And Communication Technologies ◽  
Radio Frequency Identification ◽  
Ethical Issues ◽  
Communication Technologies ◽  
Ethical Awareness ◽  
Ethical Thought ◽  
Stakeholder Groups ◽  
Information And Communication ◽  
Frequency Identification ◽  
Radio Frequency Identification Devices

The use of information and communication technologies (ICT) is increasing rapidly in many spheres of contemporary life in Europe. The ethical use of ICT in all areas of its application is of growing importance. This is especially evident in the field of healthcare. The regional, national, and Europe-wide electronic aspects of health services and systems are related fundamentally to these two developments. This chapter explores the relevance of ethics to eHealth generally. It outlines two main contrasting ideas that have influenced ethical thought: Kantian ethics and consequentialism. It investigates the ways in which teaching and practice for ICT professionals and trainees can be enhanced and extended to increase the awareness of ethical issues in eHealth. It takes as examples two technological applications that are in increasing use in the eHealth field: electronic health records and radio frequency identification devices. The chapter ends with a brief discussion and conclusions about how this ethical awareness can be expanded beyond ICT professionals to other stakeholder groups, and to other eHealth technologies or applications.

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