Host Microcontroller Research Articles

A Novel Multidimensional Tensile, Shear, and Buckling Sensor for the Measurement of Flexible Fibrous Materials.

To meet the complex and diverse demands for low-stress mechanical measurements of fabrics and other flexible materials, two integrated multidimensional force sensors with the same structure but different ranges were explored. They can support both rapid and precise low-noise, high-precision, low-cost, easy-to-use, reliable, and intelligent solutions for the complex measurement of fabric mechanics. Having analysed the mechanical relationship of the parallel beam theory, and considering the specific requirements of fabric measurement, a novel multi-dimensional force sensor is designed, capable of measuring tensile, shear, and buckling properties. Finite element analysis is used to simulate the mechanical performance of this sensor for fabric-loading/unloading measurement, and the sensitivity of the mechanical quantity transfer, the amount of sensor deformation, the stress distribution, and the degree of inter-dimensional coupling have been investigated and verified. The basis for subsequent digital processing is achieved by a low-offset, low-temperature-drift, low-power-consumption analogue front end, 24-bit ADC circuit, and signal conditioning electronics, suitable for the measurement of fabric mechanics under low stress, which is like the end-user requirements. The sensor information channel is supported by a host microcontroller with a DSP and a floating-point processing instruction set. Information processing is performed in time-sharing with the support of a multitasking real-time operating system. The purpose of designing this sensor is to facilitate the development of a new testing instrument, which will adopt the advances of current instruments whilst eliminating their shortcomings.

Solar Powered Robotic Vehicle for Optimal Battery Charging Using PIC Microcontroller

This paper focuses on the design and construction of an optimization charging system for Li–Po batteries by means of tracked solar panels. Thus, the implementation of a complete energy management system applied to a robotic exploration vehicle is put forward. The proposed system was tested on the VANTER robotic platform — an autonomous unmanned exploration vehicle specialized in recognition. The interest of this robotic system lies in the design concept, based on a smart host microcontroller. On this basis, our proposal makes a twofold significant contribution. On the one hand, it presents the construction of a solar tracking mechanism aimed at increasing the rover’s power regardless of its mobility. On the other hand, it proposes an alternative design of power system performance based on a pack of two batteries. The aim is completing the process of charging a battery independently while the other battery provides all the energy consumed by the robotic vehicle.

Smart Host Microcontroller for Optimal Battery Charging in a Solar-Powered Robotic Vehicle & Cell Phone Charging

This paper focuses on the planning associated construction of an improvement charging system for Li-Po batteries by suggests that of half-track star panels. Thus, the implementation of an entire energy management system applied to a robotic exploration vehicle is advance. The projected system was tested on the robotic platform—an autonomous remote-controlled exploration vehicle specialized in recognition. The interest of this robotic system lies within the style thought, supported a wise microcontroller. On this basis, our proposal makes a twofold vital contribution. On the one hand, it presents the development of a star chase mechanism geared toward increasing the rover's power in spite of its quality. On the opposite hand, it proposes an alternate style of facility performance supported a pack of 2 batteries. The aim is finishing the method of charging electric battery severally whereas the opposite battery provides all the energy consumed by the robotic vehicle.

Smart Host Microcontroller for Optimal Battery Charging in a Solar-Powered Robotic Vehicle

This paper focuses on the design and construction of an optimization charging system for Li-Po batteries by means of tracked solar panels. Thus, the implementation of a complete energy management system applied to a robotic exploration vehicle is put forward. The proposed system was tested on the VANTER robotic platform-an autonomous unmanned exploration vehicle specialized in recognition. The interest of this robotic system lies in the design concept, based on a smart host microcontroller. On this basis, our proposal makes a twofold significant contribution. On the one hand, it presents the construction of a solar tracking mechanism aimed at increasing the rover's power regardless of its mobility. On the other hand, it proposes an alternative design of power system performance based on a pack of two batteries. The aim is completing the process of charging a battery independently while the other battery provides all the energy consumed by the robotic vehicle.

DEVELOPMENT OF AN INEXPENSIVE HEALTH MONITORING SYSTEM FOR THE LONE ELDERLY

This paper proposes the design and implementation of an intelligent health monitoring system, e-Guardian, which helps the elderly live independently and offers peace of mind to their family members. The heart of the system is a base station (BS) that acts as a gateway between GSM/GPRS and WSN. At seniors’ sides are a number of small and lightweight wearable devices (WDs) which are capable of automatically detecting accidental falls, inferring simple activities of daily livings (ADLs), monitoring body temperatures and heart rates, etc. WDs communicate with BS, possibly via range extenders (REs) in several hops. During an emergency, alert signals will be sent to family members or caregivers via SMS. To avoid network congestions, e-Guardian takes a decentralized approach by processing sensor data locally in WDs instead of streaming raw sensor data to the BS for processing. An interrupt-driven fall detection algorithm using a digital microelectromechanical-system (MEMS) accelerometer has been designed to allow host microcontroller units (MCUs) to process data only upon interrupts and sleep the rest of the time, thus achieving several months of standby time. The system consumes minimum bandwidth thus allows its network to scale easily to cover a large area. The scalability allows an e-Guardian system to be deployed in not only households but also care centers, hospitals and even entire village/community areas thus the cost per senior is further reduced.

Solar Energy Based Optimal Battery Charging Mechanism in Robotic Vehicle by Using Smart Host Microcontroller

Solar Energy Based Optimal Battery Charging Mechanism in Robotic Vehicle by Using Smart Host Microcontroller

Ultrasonic Measurement System with Infrared Communication Technology

In order to achieve remote control of ultrasonic measurement system, an infrared communication-based ultrasonic measurement system is developed combining wireless communication technology with ultrasonic measurement technology. The hardware circuits of entire system and the achievement of several key technologies are discussed, including transducer structure and parameters selection, design of the corresponding circuit. The system is composed of host and slave parts. The host part is composed of host microcontroller, receiver circuit, liquid crystal display circuit and infrared communication module. The slave part is composed of ultrasonic transmitter, infrared communication modules and single-chip component. The host and slave parts transmit data through the infrared communication module. AT89S52 microcontroller is used as systems main control unit and ZHX1010 infrared communication chip for wireless data transmission. The system has low-cost, the implementation of convenient, easy- to-use, convenient, flexible, reliable transmission of data, and stable performance. Index Terms—infrared communication, ultrasonic, ultrasonic measurement, wireless communication, AT89S52

A 16-μA interface circuit for a capacitive flow sensor

A micropower interface circuit is described for fluidic flow measurement in commercial gas meters. The application-specific integrated circuit converts dynamic capacitive-flow sensor readings from 1 to 150 Hz into digital pulses suitable for reading by the host microcontroller. The signal path is first-order /spl Delta//spl Sigma/ modulation followed by a three-pole, one-zero infinite impulse response bandpass filter. Analog signal processing is fully differential switched capacitor, with amplifiers and dc current consuming blocks operating in weak inversion. Chip bias and oscillator frequency, and capacitive sensor offset and gain, are trimmed with on-chip EEPROM. Operating ranges are 2.5-3.6 V and from -10 to 65/spl deg/C, with active I/sub dd/ of 16 /spl mu/A.