This paper developed an artificial intelligence home environment monitoring system by using the Android Studio development platform. A database was constructed within a server to store sensor data. The proposed comprises multiple sensors, message queueing telemetry transport (MQTT) communication protocol, cloud data storage and computation, end device control. mobile application MongoDB software, which is file-oriented NoSQL management C++. represents new for processing big k-nearest...

Humans often experience unstable blood sugar due to interference factors such as environmental factors, instruments, and abnormal sugar. People with diabetes may develop hyperglycemic insufficient insulin secretion or physical abnormalities. A balanced diet regular exercise are the best ways ensure that is within normal control reduce chance of developing diabetes. This paper emphasizes importance accurate glucose monitoring for effective management, big data analytics play a pivotal role in...

This paper investigates a two-dimensional (2-D) differential folded vertical Hall device (VHD) fabricated using standard 0.35 μm CMOS technology. To minimize the cross-coupling noise, proposed VHD is laterally to shorten effective conduction length, and p <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">+</sup> guard ring shortens length narrow conducting channel. The sensitive in-plane magnetic induction based on combinational effects between...

This paper presents a dark current suppression technique for light detector in variable-temperature system. The architecture comprises photodiode sensing the ambient light, diode conducting suppression, and subtractor that is embedded amplifier with enhanced cancellation. measured of proposed lower than epichlorohydrin photoresistor or cadmium sulphide photoresistor. advantageous systems, especially those many infrared light-emitting diodes. Experimental results indicate maximum...

This paper presents a universal serial bus (USB) transceiver with interface engine (SIE) and an asynchronous first-in first-out (FIFO) queue for packet transformation data transmission in field-programmable gate array (FPGA)-to-FPGA communication. The SIE block receives the to be transmitted from central processing unit of PC transfers those macrocell interface, which handles serialization deserialization, bit stuffing, clock recovery, synchronization. An FIFO 2 kilobits is designed...

SPICE macro models for magnetic MOSFET (MAGFET) devices in the saturation region are presented. By using proposed models, performance of several readout circuits MAGFET could be predictable. In this paper, field-to-voltage converter, magnetically controlled operational-transconductance amplifier, and filter magnetic-operational amplifier have been designed, simulated, tested. The two different CMOS processes fabricated. Both simulation measurement results verify correctness flexibility models.

This study presents a mixed-mode chip for use in vector-controlled induction motor drive. It exhibits digital scalar space vector pulse width modulation (DSSVPWM), and comprises proportional-integral (PI) controller, simplified central processing unit (CPU), second-order delta-sigma analog-to-digital converter (Δ-Σ ADC). is fabricated using standard 0.35-μm 2P4M CMOS process. All of the circuits, analog, are realized single as convenient, high-speed, highly integrated, low-cost solution. The...

This article proposes an Internet of Things–based smart home system composed a virtualized cloud server and mobile phone app. The includes sensing network, which is developed with the ZigBee wireless communication protocol, message queuing telemetry transport, A Raspberry Pi development board used to receive packet information from terminal sensors using communication. Then, transport broker not only completes transmission but also publishes it server. can then be viewed through website...

A Simulation Program with Integrated Circuit Emphasis macro model is proposed to simulate and understand the interaction between magnetoresistor (MR) vertical magnetotransistor (VMT) in 1-D folded Hall sensor (VHS), which was fabricated 0.18-μm 1P6M CMOS technology. In net-list file, resistor MR enhances linearity transistor VMT improves magnetosensitivity induced voltage applied magnetic induction. The design effectively eliminated coupling that generated by Lorentz force. readout circuit...

This paper proposes an Internet-of-Things based controller to control and monitor the speed, vibration, temperature of a three -phase induction motor (IM) using variable - frequency driver ESP8266 NodeMCU DevKit board. The rotation speed IM can be controlled by varying its source current through IEEE 802.11 Wi -Fi computer communication mobile app. Furthermore, temperature, humidity, vibration monitored simultaneously both DHT22 SW-420 sensors. sensing data are transmitted cloud server in...

In this paper, the authors propose a smart home-care system built on an Android smartphone. The database and application programming interface (API) are set up server side. collects information from various sensors stores it, API acts as bridge between mobile phone database. prevents leakage of private data. associated smartphone app, two functions provided: instant monitoring based in-home sensor data fall detection using three-axis accelerometer, gyroscope, orientation inbuilt into When...

This study developed a predictive direct torque control (PDTC) application-specific integrated circuit (ASIC) with fuzzy proportional.integral.derivative (PID) controller and new round-off calculation for improving the ripple response of hysteresis when sampling calculating delay times in an induction motor drive. The proposed PDTC ASIC not only calculates stator's magnetic flux by detecting three-phase currents, voltages, rotor speed but also eliminates large ripples using PID controller....

This work develops a third-order multibit switched-current (SI) delta-sigma modulator (DSM) with four-bit switched-capacitor (SC) flash analog-to-digital converter (ADC) and an incremental data weighted averaging circuit (IDWA), which is fabricated using 0.18µm 1P6M CMOS technology. In the proposed DSM, 4-bit SC ADC used to improve its resolution, IDWA reduce nonlinearity of digital-to-analog (DAC) by moving quantization noise out signal band first-order shaping. Additionally, differential...

This study presents a radiofrequency (RF)-energy-harvesting integrated circuit (IC) for powering wireless sensor networks with transmitter an industrial, scientific, and medical (ISM) of 915 MHz. The proposed IC comprises RF-direct current (DC) rectifier, over-voltage protection circuit, low-power low-dropout (LDO) voltage regulator, charger control circuit. In the RF-DC rectifier six-stage Dickson multiplier is used to improve received RF signal DC by using native MOS small threshold...

This study investigates the one-dimensional longitudinal and folded vertical Hall devices, fabricated in a standard 0.35-/spl mu/m CMOS process. The smallest nonlinearity error 0.18%, minimum offset 0.29 mV, maximum supply-current-related sensitivity S/sub RI/=3.837 V/A/spl middot/T, are obtained with 10-mA bias current excited by supply voltage of 0.6 V. main magnetic mechanism is that filament magnetoresistor directly injected into base region bulk magnetotransistor (BMT) to increase...

This paper presents a fuzzy direct torque control (Fuzzy-DTC) IC, which is fabricated in standard TSMC 0.18-μm 1P6M CMOS process. The proposed chip enhances the performance of three-phase induction motor by reducing variations and flux with theory. In general, system firstly calculates stator's magnetic detecting current, voltage, rotor speed motor. Using error, vector selection table coordinate transformation, suitable voltage space can be obtained to switches MOSFET inverter have stable...

This paper presents a 2.4GHz/5.25GHz dual band two-stage differential low noise amplifier (LNA) with variable gain which is implemented 0.18-μm CMOS technology. In the proposed LNA, two cascode pairs are used to have current and high isolation; that current-reused paths presented power consumption. Besides, completed by adjusting gate voltages of MOSFETs, M3 M7. Furthermore, capacitor C2 added transistor M2 stable bias voltage filtering out RF signal; mode considered good linearity gain. The...

This paper proposes an Ethernet packet transformation and transmission architecture between Modbus control protocol (Modbus TCP) universal serial bus (USB) 3.0 developed with a field-programmable gate array (FPGA) development kit. The proposed is used to complete USB for application in induction motor (IM) control. receiver receives analyses TCP packets sends the source address, destination IP header, header register verify correctness of packet. stored static random access memory awaits...

In this paper, we presents the comparison of second-order sigma-delta modulator (SDM) with switched-capacitor (SC) and switched-current (SI) techniques. voltage-mode, use parasitic-insensitive integrator to implement modulator, but in current-mode sample-and-hold circuit which not only consists a feedback reduce impedance at input also common-mode feedforward (CMFF) improve offset output. The presented modulators simulate parameters TSMC 0.35 μm CMOS process technology. simulated results SC...

The data transmission is fairly quick and easy in recent years. Nowadays, there are many serial methods, such as I2C, SPI, RS-232, USB (Universal Serial Bus), so on. Recently, not only works with convenience but also transmits fast. It becomes a standard peripheral interface between FPGA development board personal computer (PC). To satisfy those requirements, the speed volume of physical transceiver continuously improved. transmitted will be queued first-in first-out register (FIFO),...

This study focuses on the design of a 2-1 switched-current (SI) multi-stage noise-shaping delta–sigma modulator with digital noise-cancellation circuit. The circuit is designed by employing various algorithms for designing logic circuits and constructing delay block an inverter transmission gate. It can eliminate higher-order quantisation noise from first stage completely. In proposed differential current-mode sample-and-hold circuit, low-input impedance presented feedback width-length...

This paper proposes a modified predictive direct torque control (PDTC) application-specific integrated circuit (ASIC) of motor drive with fuzzy controller for eliminating sampling and calculating delay times in hysteresis controllers. These degrade the quality increase both flux ripples drive. The proposed PDTC ASIC calculates stator’s magnetic by detecting three-phase current, voltage, rotor speed, eliminates using scheme. Verilog hardware description language was used to implement...

This paper proposes a dual-band radio-frequency energy harvesting (RFEH) chip Institute of Supply Management (ISM)-915 MHz and ISM-2.45 GHz wireless transmitter. It is composed the matching network, multiplier rectifier, over-voltage protection circuit, low power low-dropout (LDO) voltage regulator. In input destination not only to obtain maximum transfer but also have conversion efficiency. rectifier dynamic threshold-voltage MOSFET (native MOS) used complete Dickson circuit which converts...