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Teaching IoT Smart Sensors Programming for a Smarter World
Published in Nishu Gupta, Srinivas Kiran Gottapu, Rakesh Nayak, Anil Kumar Gupta, Mohammad Derawi, Jayden Khakurel, Human-Machine Interaction and IoT Applications for a Smarter World, 2023
Hugo Martins, Nishu Gupta, Manuel José Cabral dos Santos Reis
In [10], the authors proposed the creation of a “smart” physics lab/cabinet. This lab is fully automated and can be operated in three modes: “standard,” “automatic,” and “automatic energy saving.” The devices in the lab are controlled using a smartphone, PC, and remote control. These devices include a variety of sensors, indicators, electronic components based on Arduino UNO, MEGA, and Wi-Fi module ESP8266-12E. An ATMEL microcontroller controls three modules: “informational,” “executive,” and “demonstrational.” The “demonstrational” module can be used for mechanics, molecular physics, electrodynamics, and optics demonstrations. Several sensors can be used to monitor the environment of the lab and outside it (including temperature, humidity, pressure, illumination, level of carbon dioxide, and other gases in the air). These sensors and actuators can also be used to remotely control peripheral devices (including TV, projector, lamps, sockets, and curtains).
Introduction
Published in Indrakshi Dey, Propagation Modeling for Wireless Communications, 2022
Today we cannot really imagine ourselves without a mobile phone. What is it used for? Mobile phones are used for communicating between two people that are separated by some amount of distance. According to Merriam-Webster, telecommunication is defined as communications at a distance. We generally associate mobile phones with telecommunications or wireless communications. However, it means much more. It encompasses electrical communication of voice, data, and image over a distance, for example, television, fax, satellites, and Wi-Fi. That's why Institute of Electrical and Electronics Engineers (IEEE) defines telecommunications as transmission of signals over a long distance such as by telegraphy radio or television. Telecommunications is also referred to as electrical communications or simply communications; still it does not involve everything that can be referred to as communication systems. Communication system includes all the devices that we have at home nowadays and that can carry out controlling or altering function. Think about not only the television but also the television remote, home security systems, garage door openers, remote controls for a home theater system, Wi-Fi, mobile broadband, or fiber broadband and modern. All of these are small, mid-sized, or big communication systems.
Screening
Published in Syed R. Qasim, Wastewater Treatment Plants, 2017
The following items may be considered as troubleshooting guides:8,13,14Obnoxious odors, flies, and other insects around the bar rack indicate prolonged storage of screenings at the facility. Increase frequency of removal and disposal of screenings.Excessive screen clogging is an indication of (a) an unusual amount of debris in the wastewater, (b) low velocity through the rack, or (c) the automatic clock-operated screen rakes do not remove the debris fast enough. Possible solutions include identifying the source of waste causing excessive discharge of debris and stopping it at the source; providing a coarser rack; and resetting the timer cycle or installing level controller override.Excessive grit accumulation in the chamber is due to low velocity in the channel. The possible solutions to this problem are remove bottom irregularity, reslope the bottom, rake the channel, or flush regularly with a hose.A jammed raking mechanism may render the mechanical rake inoperable, and the circuit breaker will not reset. Remove the obstruction immediately.A broken chain or cable, or a broken limit switch will render the rake inoperable, but the motor will run. Inspect chain and switches, and replace them as necessary.A defective remote control circuit or motor will render the rake inoperable without any visible problem. Check remote control circuit and motor and replace them as necessary.
Energy efficient optimal hop transmission using minimum power least cost algorithm in cooperative routing for wireless sensor network
Published in Automatika, 2023
Immanuvel Arokia James K., Manjula P., Guga Priya G., Karthikeyan A.
Radio receivers and transmitters, as a rule, require antennas, keeping in mind the end goal of coupling electrical association with the electromagnetic field. Radio waves are generally electromagnetic waves that help motions through space or air at the speed of light with practically no transmission misfortune. Radio transmitters and receivers are utilised to pass on signals in broadcast (audio) radio, TV, portable Wi-Fi (WLAN) data networks, and remote control gadgets, among numerous others. Reception apparatuses are typically omnidirectional. They generally emanate energy similarly every which way, or directionally, where energy transmits more along one bearing than others. It's physically difficult to get a totally uniform omnidirectional antenna. Reception apparatuses, as a rule, send little energy upward or downward; however, they for the most part have a uniform radiation design in the horizontal plane [7].
Crosswind effects on a train-bridge system: wind tunnel tests with a moving vehicle
Published in Structure and Infrastructure Engineering, 2023
A homemade testing system was used to measure the wind pressure acting on the train, i.e. a wireless signal acquisition measurement system. Its main functions include wireless data collection, wireless remote control, and sensing. The overall design involves an onboard data acquisition transmitter that can receive the signal from sensors and send the data to the upper computer via a wireless network. The sampled data can be displayed on the upper computer for further processing. The wireless data acquisition transmitter (NetDAQ-Network Data Acquisition) was connected to pressure transducers via the integrated circuit and mounted in the train carriage. The pressure sensor gathered the wind pressure signal on the train surface and the A/D converter converted voltage signals into digital signals to save in the host machine. Channels on the data logger were connected to pressure transducers through fixed shielded multicore signal cables, preventing them from moving in the model.
Study on hypercompact and lightweight data logger separators for wild animals
Published in Advanced Robotics, 2021
Takuma Abe, Natsumi Kubo, Kazuki Abe, Hirokazu Suzuki, Ken Yoda, Riichiro Tadakuma, Yuichi Tsumaki
We conducted a simple experiment to measure the loudness of the separator during separation as an evaluation of its impact. The sound is a single impact sound while <1 s. This experiment was conducted in a quiet room equipped with a sound level meter to measure the maximum loudness of the separator driven by the remote control. The microphone was installed at a height of 1.5 m from the floor, and the separator was installed 1.5 m away from the microphone. The experiment was conducted 5 times with 3 devices each. As a result, the sound was 50.3–58.6 dB. This value is below the seaside noise level of 60 dB [28]. Therefore, it is considered that the sound is not too loud for seabird. Moreover, since the duration of the sound is short, we believe it will have little effect on seabirds.