scholarly journals Methods for Protecting a Personal Computer and Data Acquisition Electronics Installed on Mobile Equipment

2018 ◽  
Vol 1 (1) ◽  
pp. 4-16 ◽  
Author(s):  
Mathew Pelletier ◽  
John Wanjura ◽  
Greg Holt ◽  
Paul Funk
Keyword(s):  
Data Acquisition ◽  
Personal Computer ◽  
Industrial Applications ◽  
Circuit Board ◽  
Automotive Electronics ◽  
Mobile Platforms ◽  
Electrostatic Discharges ◽  
Sufficient Energy ◽  
Circuit Components ◽  
Electrical Transients

Successful data acquisition on mobile platforms, such as tractors, requires the provision of protection for the sensitive electronics, as these platforms are inherently rife with electrical transients that have sufficient energy to cause damage to unprotected instrumentation. Unfortunately, though there are many protection options for industrial applications (i.e., those installed at 120VAC), off-the-shelf products for mobile protection are extremely limited and, after a survey, were determined to provide insufficient protection. The objective of this study was to identify the requirements for the protection of mobile platform instrumentation and equipment, and/or identify circuits that can perform this function. A literature review of electrical transients typical to automotive electronics was performed and circuit simulations were performed using open source software. Off-the-shelf circuit components were tested, via simulation, in various configurations until a design emerged that provided adequate protection from all surge classes. To ensure protection of valuable data, one of the design criteria was to ensure the circuit would continue to supply power to the personal computer (PC), and electronics, even during a load-dump event. The circuit was also designed to provide protection from electrical fast transients and electrostatic discharges. The reported circuit is capable of protecting a computer and data acquisition electronics installed on 12 VDC mobile equipment. This simple, inexpensive design meets Automotive Electronics Council requirements and uses readily available components without a specially fabricated circuit board.

scholarly journals FPGA Data Acquisition of Electrical Parameter

2021 ◽  
Vol 6 (4) ◽  
pp. 105-123
Author(s):  
Kennedy Ahamefula Iroanusi
Keyword(s):  
Data Acquisition ◽  
Personal Computer ◽  
High Speed ◽  
Electrical Parameter ◽  
Logic Gate ◽  
System On Chip ◽  
Circuit Board ◽  
Sensor Data ◽  
Voltage Level ◽  
On Chip

A data acquisition system using a Programmable Logic Gate Array (FPGA) and Graphical User Interface (GUI) for visual enhancement designed for Personal Computer is shown. The data acquisition of voltage (V), current (A) and temperature ( ) signals and/or parameters transmitted at high frequency in real time via the system-on-chip (SOC) created on Spartan 6 FPGA. The system-on-chip is achieved by programming the FPGA with a high-speed hardware description language (Verilog) code written for the system, Printed Circuit Board (PCB) was designed for the system and the GUI has been created using a graphical approach utilizing LabVIEW to enable data monitoring on Personal Computer (PC) display. The FPGA requires digital input signals; therefore, an analogue to digital convertor (ADC) is required for the convert sensor data from analogue signal from sensors to digital signals. A voltage level shifter is required to normalise the voltage level standards within the circuity in between the 5V from the ADC converter and the 3.3V voltage requirement for the FPGA. The Spartan 6 FPGA receives data from the analogue sensors via the ADC, the data are wrapped up in packets and transmitted through RS-232 serial port to the PC. The three aforementioned parameters are monitored on the GUI on the PC presented in both numerical and graphical format and all data can be store in a file for backup storage, maintenance or reference purposes.

Development of a Micro-PIXE Camera

1998 ◽  
Vol 08 (02n03) ◽  
pp. 203-208 ◽  
Author(s):  
S. MATSUYAMA ◽  
K. ISHII ◽  
A. SUGIMOTO ◽  
T. SATOH ◽  
K. GOTOH ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Spatial Resolution ◽  
Personal Computer ◽  
Elemental Analysis ◽  
Data Acquisition System ◽  
Atomic Energy ◽  
Energy Research ◽  
Pixe Analysis ◽  
System A ◽  
Ion Accelerator

We developed a system of μ-PIXE analysis at the division of Takasaki ion accelerator for advanced radiation application (TIARA) in Japan Atomic Energy Research Institute (JAERI), which consists of a microbeam apparatus, a multi-parameter data acquisition system and a personal computer. Elemental analysis in the region of 500 μ m × 500 μ m can be performed with a spatial resolution of < 0.3 μm and multi-elemental distributions are presented as images on a computer display even during measurement. We call this system a micro-PIXE camera.

scholarly journals Implementation and Experimental Verification of Smart Junction Box for Low-Voltage Automotive Electronics in Electric Vehicles

2020 ◽  
Vol 10 (7) ◽  
pp. 2214
Author(s):  
Sang Wook Lee ◽  
Soo-Whang Baek
Keyword(s):  
Electric Vehicles ◽  
Printed Circuit Board ◽  
Pulse Width Modulation ◽  
Low Voltage ◽  
Short Circuit ◽  
Circuit Board ◽  
Area Network ◽  
Automotive Electronics ◽  
Overload Protection ◽  
The Impact

In this study, we designed and implemented a smart junction box (SJB) that was optimized for supplying power to low-voltage headlights (13.5 V) in electric vehicles. The design incorporated a number of automotive semiconductor devices, and components were placed in a high-density arrangement to reduce the overall size of the final design. The heat generated by the SJB was efficiently managed to mount an Intelligent Power Switch (IPS), which was used to power the headlights onto the printed circuit board (PCB) to minimize the impact on other components. The SJB was designed to provide power to the headlights via pulse width modulation to extend their lifetime. In addition, overload protection and fail/safe functions were implemented in the software to improve the stability of the system, and a controller area network (CAN) bus was provided for communications with various components in the SJB as well as with external controllers. The performance of the SJB was validated via a load operation test to assess the short circuit and overload protection functions, and the output duty cycle was evaluated across a range of input voltages to ensure proper operation. Based on our results, the power supplied to the headlights was found to be uniform and stable.

Flow cytometry signal processing and data acquisition with a personal computer using an RTI‐800 multifunction A/D I/O board

1993 ◽  
Vol 64 (11) ◽  
pp. 3116-3120 ◽  
Author(s):  
Tom C. Bakker Schut ◽  
Alex Florians ◽  
Kees O. van der Werf ◽  
Bart G. de Grooth
Keyword(s):  
Flow Cytometry ◽  
Signal Processing ◽  
Data Acquisition ◽  
Personal Computer

scholarly journals Development of Educational Platform for Experiments of Electric Machines

2014 ◽  
Vol 2014 ◽  
pp. 1-10
Author(s):  
Yuan-Chieh Chin
Keyword(s):  
Experimental Data ◽  
Data Acquisition ◽  
Real Time ◽  
Undergraduate Students ◽  
Personal Computer ◽  
Electric Machines ◽  
Interface Card ◽  
Online Comments ◽  
Acquisition Device ◽  
Data Acquisition Device

An educational platform to improve the test and the evaluation of the experimental data in electric machine laboratory is developed. The system is complement to the course taught of electric machines to undergraduate students. The proposed system can automatically acquire the experimental data from data acquisition device on the personal computer and transfer the data through interface card to the host server. The host sever performs the essential calculations of the obtained parameters. After the students enter their computational value through system interface, the host server could record, compare, estimate, and chart the result in real time. The system not only improves the efficiency of the experimental data evaluation but also provides the online comments including experimental purposes, principles, necessary instrument equipment, special notes, operation procedures, and results recording.

A Comparison of Feature Extraction Algorithms Based on Sonar Sensor Data

2013 ◽  
Author(s):  
Hesham Ismail ◽  
Balakumar Balachandran
Keyword(s):  
Feature Extraction ◽  
Feature Detection ◽  
Industrial Applications ◽  
Sensor Data ◽  
Mobile Platforms ◽  
Fusion Algorithm ◽  
Unknown Environment ◽  
Mobile Vehicle ◽  
Localization And Mapping ◽  
Ongoing Work

Simultaneous localization and mapping (SLAM) is a technique used to determine the location of a mobile vehicle in an unknown environment, while constructing a map of the unknown environment at the same time. Mobile platforms, which make use of SLAM algorithms, have industrial applications in autonomous maintenance, such as the inspection of flaws and defects in oil pipelines and storage tanks. An important component of SLAM is feature extraction, which is the process of detecting and extracting significant features such as corners, edges, and walls in an environment. Here, the use of sonars as sensors mounted on a mobile platform is examined, and a comparison of different algorithms currently in use is made and presented. This comparison is performed through a combination of experimental and numerical studies. The triangulation-based fusion algorithm is examined for point feature detection, and the standard Hough Transform and the triangulation Hough fusion (THF) are used for line detection. Comparisons are discussed and presented along with ongoing work.

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