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Computing System Elements
Published in Stephen Horan, Introduction to PCM Telemetering Systems, 2017
Wi-Fi protocol but the two are not interchangeable. Bluetooth was part of the IEEE 802 family as IEEE 802.15.1, but that protocol standard is not maintained. The main advantage of a Bluetooth network is the self-discovery property for integrating peripherals into the network. Many computers currently come with Bluetooth support; system designers can add the protocol by using a USB-based dongle for those without intrinsic support.
Computer Technology
Published in Michael M. A. Mirabito, Barbara L. Morgenstern, Mitchell Kapor, The New Communications Technologies, 2004
Michael M. A. Mirabito, Barbara L. Morgenstern, Mitchell Kapor
In response, some companies have adopted software or hardware-based protection schemes. An example of the latter is bundling a dongle with a program. A dongle is a small hardware component that plugs into a PC’s USB or other data port. As designed, the software will not work without it. Other protection schemes also exist.
Swarm fixed-time reference tracking: a discrete model
Published in International Journal of Control, 2023
Giuseppe Fedele, Luigi D'Alfonso, Antonio Bono
The system built to run the experiment is made by three main components: five UGVs, one desktop computer and one rgb camera. The UGVs are small circular differential drive robots called Elisa-3 (Figure 5) and produced by GCtronic (technical specifications are available at GCtronic, 2019). These are equipped with a radio module that allows bidirectional communication with a USB dongle connected to the computer. The robots are positioned in an arena of where their movements are recorded by a Trust spotlight pro rgb camera connected to the computer via USB (see Figure 6). The computer, based on an intel core i7 with 8 GB of memory, is in charge of all the computations. These are divided in two tasks: first identifying the robots position and orientation from the images given by the camera; then computing the control inputs and sending them to each robot via the radio module. It is worth pointing out that this limitation is due to the laboratory setup and not to the control law itself: in fact, in a realistic scenario where each agent is equipped with adequate sensors, no central unit would be required.
Racket orientation angle differences between accurate and inaccurate squash shots, as determined by a racket embedded magnetic-inertial measurement unit
Published in Sports Biomechanics, 2021
Benjamin K. Williams, Ross H. Sanders, Joong Hyun Ryu, Philip Graham-Smith, Peter J. Sinclair
Prior to data collection the racket was attached to a custom-built plastic calibration housing (Figure 1) such that the MIMU could be calibrated using the ‘3-Space Sensor’ software (YOST Labs, USA) according to the manufacturer’s instructions. The calibration housing was used to move the racket embedded MIMU through a range of orientations, as well as a reset procedure that set the zero orientation of the MIMU. This ‘gradient descent calibration procedure’ was required to align the axes of the sensor chip embedded reference system to those of the racket and reduces the chance of sensor errors by calibrating the compass and accelerometer. During testing, the MIMU data were transmitted in real-time and recorded via a USB ‘3-Space Wireless Dongle’ connected to a computer running the 3-Space Sensor software.
Detection of Affective States of the Students in a Blended Learning Environment Comprising of Smartphones
Published in International Journal of Human–Computer Interaction, 2021
Subrata Tikadar, Samit Bhattacharya
We conducted this experiment (CE1) with a different set of ten volunteers (five male and five female, mean age of 25.3 years with SD = 3.94). We asked the participants to wear the EPOC+ headset connected (via a Bluetooth dongle) to the EmotivPRO software which was installed on a laptop. The participants were then asked to play the two games we developed for the entire duration. It was observed that the valence (interest) of the players were higher when they were playing the winning modes of the game and lower when they were playing the losing modes of the game. The observation indicated that the games were able to induce the two different levels of valence. It was also observed that the arousal (excitement) level was high when the participants were playing a particular winning mode and the same was low when they were playing another winning mode. Similar observations were made for arousal in the two loosing modes (in one losing mode, the arousal was high, whereas in another losing mode, it was low). This was because such eliciting elements were kept in the particular modes (music having the capability of inducing low arousal in one winning and losing mode, and that of inducing high arousal in another winning and losing mode).