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Among the processes for making final products using fibers, the final process can be called a sewing process. The sewing process generally corresponds to the process that requires the most manpower in the production of textile products. The cost of sewing has gradually increased due to the recent rise in labor costs. The automation of the sewing process and the smart factory are expected to be carried...
Venus flytrap is a special kind of plant that has the ability to grip the insects and make them be trapped in their leaves and thorns. In this paper, a bio-inspired gripper is designed and tested to imitate the gripping process of the Venus flytrap. The gripper is driven by a dielectric elastomer actuator (DEA), which contains two-leaf functional structure aiming to mimic the leaf closing of Venus...
Scanning of main beam of radiation digitally at fixed millimeter wave frequency in a Substrate Integrated Waveguide (SIW) Leaky Wave Antenna (LWA) has not been investigated so far in literature. In this work a Half-Mode Substrate Integrated Waveguide (HMSIW) LWA is presented which steers its main beam digitally at fixed millimeter wave frequency of 26 GHz. Digital beam steering is made feasible by...
A multi-channel real-time sound pressure spectrum analyzer was demonstrated for investigating abnormal noises of tapered roller bearings (TRBs). The sound sensing system was developed to replace the existing quality-control method conducted by human ears. All data collected by proto-type were performed by using data processing module. The background was identified at a low frequency band. Peaks at...
Sign language recognition (SLR) could help the deaf better communicate with individuals who do not understand sign language, which could also be used in human-computer interaction (HCI). In this paper, surface Electromyography (sEMG) signals and accelerometer (ACC) signals are acquired from the right forearm, wrist and the back of the hand for 18 isolated Chinese Sign Language (CSL) signs. A new position...
In recent years, 3D printing technology is rising at home and abroad. More and more people are using this technology in all walks of life. However, the application development and service provision of 3D printing is still far from enough. With the development of the Internet of things, cloud computing and other emerging technologies, as well as computer and network communications technology continue...
An octopus arm is boneless and mostly composed of muscles placed in the various directions around the nerve. The muscle is placed in three directions mainly, the octopus arm can perform multiple functions such as the contracting, bending, torsion, and stiffness change by driving the muscles selectively. We have developed a flexible manipulator using thin McKibben actuators by imitating the structure...
A dielectric elastomer membrane is prestretched firstly and held by a circular rigid frame, it may form wrinkles or bulging with increasing applied voltages. Experiments and theory in this paper investigate phase transitions on a circular DE film. Experimental phenomena were found out before electric breakdown, active region of a membrane expanded against the passive region, sometimes bulging formed...
Selective Laser Sintering (SLS) is a powder-bed Additive Manufacturing process that has a large amount of potential for future growth. Historically SLS has been limited to a narrow selection of polymers, although there have been recent advances in working with composite powders, such as Alumide. One of the biggest limitations to developing new materials for sintering is the elevated risk involved...
Bayesian theories and inference play important role in developing efficient data search and selection models. Searching and selecting electroencephalographic (EEG) artefacts play critical role in the development of robotic control signals. The adaption of search theory in EEG artefact selection increases the efficiency and accuracy of robotic control signals. Random EEG artefact matching to usable...
Epidural space insertion is a common needle surgery for regional anaesthesia, such as labor pain relief and lower extremity surgery. But detection of needle entry into epidural space can be difficult, which currently is highly depended on a hand-feeling skill named loss-of-resistance (LOR). To provide the clinicians with a better real-time visual signal, this paper presents a novel tip force sensing...
Control moment gyro (CMG) that driven by traveling wave traveling wave hollow ultrasonic motor have the closed loop stability control and multi objective angle fixed angle locking precision in large speed range demand. In this paper, a mathematical model of the control moment gyro system driven by traveling wave type hollow ultrasonic motor is established. Then taking into account the nonlinear characteristics...
A real-time remote data acquisition and process monitor system based on ARM and Ethernet is designed for automatic filling line. The whole scheme of the system is analyzed and the hardware and software design of the system is discussed in details. Though obtaining intuitive image video information and analyzing the real-time display data or history date which come from the production line, people...
As a new type of flexible drive, pneumatic artificial muscle (PAM) has been widely concerned in various fields, but the research on the dynamic characteristics is difficult because of its strong nonlinearity and hysteresis. In this paper, the effects of system hardware configuration and control algorithm on the dynamic displacement characteristics of the double parallel Mckibben artificial muscles...
The sag of power transmission line is of great significance to the safe operation of the whole transmission systems, and is also an important indicator of the line design. A new method to measure the sag of the transmission line was presented in this paper, which was based on the laser ranging and the image processing technology. Firstly, the contrast enhancement and threshold segmentation were used...
Medical exoskeletons are robotic devices that provide paraplegics with the ability to ambulate again. There are four current market leaders in the industry: REX, by Rex Bionics; ReWalk, by Argo Medical Technologies Ltd; Ekso GT, by Ekso Bionics; and Indego, by Parker Hannifin. A weighted table-based method was used to evaluate the capability of these four devices, which was then compared to their...
Interaction with non-rigid objects poses a challenge for manufacturing systems. The dimensions, locations and physical properties of soft-tissue objects like fruit or meat are subject to considerable variation and uncertainty. Possible ways to accommodate this are to use a number of different types of sensors and actors. However, a control system physically located next to a manufacturing system is...
Automated inspection of apples requires that the entire surface of the fruit passes through the view of at least one camera. This work uses Monte Carlo simulation to investigate the extent of coverage of the apple surface when viewed by three four and five cameras arranged in a plane. Each camera has a circular inspection area that is 45 to 50% of the apple size. The number of images per apple rotation...
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