Discovery and analysis of time delay sources in the USGS personal computer data collection platform (PCDCP) system

2014 ◽  
Author(s):  
Timothy C. White ◽  
Edward A. Sauter ◽  
Duff C. Stewart
Keyword(s):  
Time Delay ◽  
Data Collection ◽  
Personal Computer ◽  
Computer Data

A low-cost system for computerized rodent weight logging with statistical analysis

1989 ◽  
Vol 23 (1) ◽  
pp. 39-42
Author(s):  
L. S. Young ◽  
R. J. East ◽  
T. Fearn
Keyword(s):  
Statistical Analysis ◽  
Data Collection ◽  
Personal Computer ◽  
Low Cost ◽  
Computer Programs ◽  
Current Loop ◽  
Computer Data ◽  
Cost System ◽  
On Line ◽  
Weight Data

A system comprising a suite of 4 computer programs has been developed for on-line rodent weight data collection and statistical analysis using an IBM personal computer. Data can be collected from up to 3 separate trials simultaneously, and can be stored for later statistical analysis. Mettler balances were used for the animal weighing. A Mettler current loop adapter and a multiplexer were used to interface the balances with the computer.

Conducting Curriculum-Based Measurement with Computerized Data Collection: Effects on Efficiency and Teacher Satisfaction

1988 ◽  
Vol 9 (2) ◽  
pp. 73-86 ◽  
Author(s):  
Lynn S. Fuchs ◽  
Carol L. Hamlett ◽  
Douglas Fuchs ◽  
Pamela M. Stecker ◽  
Carl Ferguson
Keyword(s):  
Special Education ◽  
Data Collection ◽  
Student Performance ◽  
Special Education Teachers ◽  
Teacher Satisfaction ◽  
Curriculum Based Measurement ◽  
Computer Data ◽  
Education Practice ◽  
Teachers And Students ◽  
Measurement And Evaluation

This study assessed the efficiency of and teacher satisfaction with curriculum-based measurement (CBM) when student performance data are collected by teachers or by computers. Participants were 20 special education teachers, randomly assigned to teacher and computer administration groups. Each practitioner selected two mildly handicapped pupils for participation. For 15 weeks, teachers employed CBM in reading, spelling, and math, with data collected by teachers or by computers. Ten weeks into the study, teachers and students were observed during measurement and evaluation activities, and durations of time allocated to CBM procedures were recorded. Teacher satisfaction was indexed with a questionnaire at the study's completion. Observational data indicated that teachers spent less time in measurement and evaluation when data were collected by computers; further, satisfaction data revealed that computer-data-collection teachers were more satisfied with the procedures. However, students spent more time in measurement with computer data collection. Implications for special education practice are discussed.

Development and Benefits of Computer-Aided Travel Time Data Collection

1996 ◽  
Vol 1551 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Robert J. Benz ◽  
Michael A. Ogden
Keyword(s):  
Data Collection ◽  
Travel Time ◽  
Automated Analysis ◽  
Future Research ◽  
Measuring Instruments ◽  
Time Data ◽  
Computer Data ◽  
Distance Information ◽  
Travel Time Data ◽  
Computer Aided

Link travel times are one of the most widely used and valuable measurements of congestion. Travel time measures are compatible with multimodal analyses and are understood by nontechnical audiences, yet are rigorous enough for technical analyses by transportation engineers and planners. The “average” car and floating car techniques are the most widely used travel time–based measures. Although there are cost, safety, and data limitation problems associated with collecting travel time data manually, the use of computer-aided travel time technology solves most of these problems. Detailed speed, time, and distance information can be safely collected in up to 0.1-sec intervals for a reasonable cost. The consistent format of the computer data lends itself to an automated analysis process. The development and benefits of using computer-aided travel time data collection techniques using distance-measuring instruments (DMI) and laptop computers are discussed. Automated analysis techniques and developmental software can produce results such as speed profiles, average speeds, level of service, and vehicle accelerations. Current and future research on air quality methods, fuel consumption information, and planning model potential is also presented.

scholarly journals DEVELOPMENT OF CENTRALIZED COMPUTER DATA COLLECTION SYSTEM FROM ANALOG SENSORS

2021 ◽  
Vol 297 (3) ◽  
pp. 46-50
Author(s):  
Volodymyr STATSENKO ◽  
◽  
Oleksandr BURMISTENKOV ◽  
Tetiana BILA ◽  
Dmytro STATSENKO ◽  
...  
Keyword(s):  
Data Collection ◽  
Information Transfer ◽  
Data Transfer ◽  
Design Parameters ◽  
Collection System ◽  
Wireless Data ◽  
Computer Data ◽  
Data Collection System ◽  
Advantages And Disadvantages ◽  
The One

The article presents the architecture and operation principles of the system for collecting and analyzing information from strain gauges. These systems are used to determine the equipment performance for transporting a variety of materials. In particular, they are used to control the movement of bulk materials mixtures components. For such technological processes, it is fundamentally important to ensure constant flows intensity. The paper identifies three variants of sensor connection schemes, analyzes their advantages and disadvantages. It is established that the structure “one ADC – several sensors” allows to reduce equipment costs and at the same time to provide the minimum parameters influence of a transmission line on a useful sensor signal. The “one-to-one” scheme provides the connection of each sensor to its own ADC. “Circuit with multiplexer” allows to increase the number of sensors connected to one ADC. It is established that the best option in terms of reducing the interference effects on the analog signal and the cost of creating a system is the scheme “one ADC – several sensors”. The algorithm of information transfer from ADC to microcontroller (MC) is analysed. It is calculated that HX711 ADC chips provide the maximum data rate of 18.5 values/s. It is proposed to transfer data between the MC and the server using the TCP protocol because it avoids data loss and provides the necessary data transfer speed. The structure and formats of data that are transmitted from the mass sensor to the ADC, microcontroller, web server and database are proposed. The main speed, design parameters, advantages and disadvantages of wired and wireless data network between MK and the server are determined. Recommendations for the design of such a network depending on the characteristics of the premises in which the data collection system will be used have been developed.

Sign in / Sign up

Export Citation Format

Share Document