จำนวน Repository ( 17 )
การประยุกต์เทคนิคการควบคุมกระบวนการทางสถิติในการตรวจติดตามการปล่อยก๊าซคาร์บอนไดออกไซด์จากการเดินทางโดยรถไฟฟ้าบีทีเอส
CO2 emission of rail transportation system plays more important role including the expansion of BTS route that consume the energy and emit CO2 gas more and more. The purpose of this research was to find out amount of CO2 emission from travelling by BTS train and determine specific CO2 emission per product in the form of gCO2e/passenger/km then forecasting on CO2 emission from BTS operations. Research process was initiated from collecting monthly data on ridership distance and electricity for 55 months continuously then regression analysis CUSUM and time series analysis were used for prediction and analysis of CO2 emission. The finding indicated that BTS’s specific CO2 emission was 24.7 gCO2e/passenger/km. Forecasting CO2 Emission from BTS result that Winters Exponential Smoothing Method is most accuracy then Double Exponential Smoothing Method Trend Analysis Method and Decomposition Method respectively. The result of these analysis could be used to calculate carbon footprint from staff travelling by BTS train and promote people to use public transport by government as sustainable transportation concept.
Development of monitoring system for mobile weather station
The objective of this research was to develop a high performance monitoring software for extended database of mobile weather station by using embedded computer. The monitoring system could measure and record temperature relative humidity wind speed and direction rainfall solar radiation and UV index. The software could convert these parameters and sent them from mobile unit to base unit within 60meters distance via 868.0MHz of radio frequency. The embedded computer was used as for database and host of the monitoring software. This software was developed by using LabVIEW with large MySQL database. The software could work perfectly. That is it could monitor and display any parameter in real time in both graphic and numerical data. It could also produce a report in correct format of research information. The Monitor system could work with the embedded computer. The mobile weather station could be used in remote areas with photovoltaic energy system and storage battery specially designed for them.
Monitoring Controlled Car via a Computer with Wireless GPS Syste
Abstract The monitoring of controlled car via a computer with wireless GPS system project was invented to monitor a car via a computer with wireless GPS system that could send a cars coordination back to the controller when the car reached the specif ied position. All was done through a wireless communication. This project started by studying details and equipment of controlled car GPS system and programming of Micro Controller. These were applied in building a car which could be controlled via a computer with wireless GPS system. The Micro Controller program was also written. As a result of the project a controlled car could be monitored via a computer with wireless GPS system. The car could be moved by the computer to the specif ied coordination and coordination was sent back to the controller when the car reached its destination.
A novel method for measuring total antioxidant capacity and its application to monitoring the antioxidant status in Thai herbs.
A novel and simple method for measuring total antioxidant capacity or T AC in Thai herb extracts has been developed. The principle is based on generating free radical the deep blue Imipramine radical is generated by oxidizing Imipramine by ammonium tetravanadate in acid medium that can be easily scavenged by antioxidant compounds in the sample. Decreasing in the absorption spectrum at 620 nm related with antioxidant capacity was detected by spectrophotometer method in the proposed of practicable and low-cost However improvement of the throughput Flow injection analysis (FIA) was applied. The variables affecting the signal such as pH reagent concentrations linear relationship was optimized. The novel assay is linear up to 2800 mg Trolox equivalent/L its precision value is lower than 1% RSD and these are no interference from NaOH NaCI and N~C03 The method was applied for determination of three extract fractions of G. sootepensis. The results show the different of antioxidant capacity in each fraction with S I has the most TAC following S2 and S3 respectively. Although a good correlation of the present method was observed between two methods DPPH and Follin Ciocalteu reagent Finally the developed method was easy stable inexpensive environmental friendly and automated measures total antioxidant capacity.
A Design of Flood Monitoring System with Low Rate Wireless Sensor Network Coordinator with Multi-Network Using Single Processor
This article presents a design and development of a low rate wireless sensor network coordinator controller. Wireless sensor networks are cheap and comprised of a small fully autonomous processing communication and sensing devices. In this study develops the system for monitoring and flood warning. This research used small embedded micro controller. The system can expand into multi network and work with single processor. This design will reduce components and power assumption. The research use Propeller Chip by Parrallax Inc. This chip contains eight processors inside. All eight processors can perform tasks simultaneously or with coordination from other processors. A designed of system works together with wireless sensor networks. The first step of the experiment is creating main node and sub node in flooding area and finds transmission of data between them. Experimental results show that we can use single microcontroller work with multi-network. It can monitor result of network directly from Propeller chip by generating computer monitor signal.