scholarly journals Performance of Cell Phone Controlled Model Vehicle

2020 ◽  
pp. 14-20
Author(s):  
János Hegedűs-Kuti ◽  
Mátyás Andó
Keyword(s):  
Power Consumption ◽  
Cell Phone ◽  
Total Weight ◽  
Maximum Speed ◽  
Electronic Components ◽  
Additive Technology

The objective of the project was to construct a model car - using additive technology - which is connected to a phone via cordless communication. PLA was used as a material to print the units. The total weight of the model car is 690 grams including the electronic components. The power consumption and driving properties were measured under given circumstances. Based on our calculations, even in active use at its maximum speed of 5.16 km/h, the system is capable of at least 3.9 hours of operation, while full charging takes only 3 hours. As a result, with two battery units it can be operated continuously.

scholarly journals Pembuatan Prototipe Kursi Roda Inovatif Dengan Akses Suara Menggunakan Smartphone Berbasis Mikrokontroler ATMega 8A

2021 ◽  
Vol 1 (1) ◽  
pp. 32-42
Author(s):  
Akbar Prasetio
Keyword(s):  
Power Consumption ◽  
Voltage Drop ◽  
Sensor Response ◽  
Load Test ◽  
Low Power Consumption ◽  
Maximum Speed ◽  
Test Results ◽  
Motor Speed ◽  
Maximum Weight ◽  
Driver Circuit

This low power consumption microcontroller is able to execute instructions with a maximum speed of 16MIPS at a frequency of 16MHz and the ATmega8 is tested to work at a voltage between 4.5 - 5.5 V. Test results of motor drivers 1 and 2 working at a voltage of 4.99 prove that the driver circuit has worked according to its function, namely controlling the motor in 2 directions according to the input given. Motor speed can be controlled by adjusting the motor voltage, the higher the voltage, the faster the motor rotates. The voltage drop will slow down the motor to the desired speed, The sensor response if it encounters an obstacle in front of the wheelchair will stop 10 cm before hitting the object. Then the load test is added gradually from 0 to 451 grams. The wheelchair will appear to be starting to slow down at its maximum weight, making it less responsive to commands. After testing, it can be concluded that the tool works as desired, namely controlling the motion of the wheelchair with voice commands and it can be declared successful although there are still some weaknesses and shortcomings that must be improved.

scholarly journals Instruments and Methods: Radio-Echo Equipment for Depth Sounding of Temperate Glaciers

1980 ◽  
Vol 25 (93) ◽  
pp. 477-486 ◽  
Author(s):  
Marteinn Sverrisson ◽  
Ævar Jóhannesson ◽  
Helgi Björnsson
Keyword(s):  
Power Consumption ◽  
Frequency Band ◽  
Total Weight ◽  
Range Resolution ◽  
Radio Echo Sounding ◽  
Depth Sounding ◽  
Echo Sounding

AbstractRadio echo-sounding equipment has been designed, and used for depth sounding on temperate glaciers in Iceland. Two devices have been built. Mark I operates in the frequency band 2 to 5 MHz. The overall range is 100 to 1000 m. The arrival of the echo can be timed with an accuracy which corresponds to 20 m resolution. The equipment has been used for routine soundings on Mýrdalsjökull and Vatnajökull for the last two years. Mark II operates at 2 to 10 MHz. The range is from 30 to 400 m and the range resolution is 8 m. The equipment has been used for successful soundings on valley glaciers.The power consumption of the whole system is 18 W plus 72 W for the oscilloscope (Tektronix Model 465). The voltage is supplied from 12 V car batteries. The total weight of the equipment is about 35 kg plus the weight of batteries. The antennae are contained in 16 mm plastic tubes. The equipment is placed on two sledges and towed behind a snowmobile or a skidoo. A continuous sounding record is photographed from the oscilloscope.

scholarly journals Replacement of Analog Automatic Voltage Regulator using Digital Technology

2016 ◽  
Vol 6 (1) ◽  
pp. 53
Author(s):  
Ersalina Werda Mukti ◽  
Sulistyo Wijanarko ◽  
Anwar Muqorobin
Keyword(s):  
Power Consumption ◽  
Digital Technology ◽  
Power Plants ◽  
Alternative Solution ◽  
Voltage Regulator ◽  
Local Market ◽  
Electronic Components ◽  
Current Technology ◽  
Op Amp ◽  
Automatic Voltage Regulator

Before the 90’s, many power plants in Indonesia were equipped with analog controllers and now those power plants are still in operation to produce electricity. One of those controller parts is Automatic Voltage Regulator (AVR). If a failure occurs in the AVR, the economic solution is by replacing the damaged electronic component with new component. However this method will not solve the problem if the components are not available in local market or become obsolete. Purchasing the new AVR that compatible with other controller parts cannot be done again because the analog controllers are no longer produced by the vendor. Furthermore, replacement of all the controllers with the current technology become expensive.  According to this, an alternative solution is proposed in this paper by designing an AVR that compatible with other controller parts and considering the availability of the electronic components in local market. ATmega8 microcontroller is used to implement a digital AVR and employing op amp based as its signal conditioning. The result shows that the digital AVR can reduce hardware size and power consumption. The digital AVR also meets the computation rate of the computation signal.

scholarly journals Short Distance Wireless Power Transfer for Small Devices

10.29007/rkwb ◽  
2018 ◽  
Author(s):  
Parth Panchal ◽  
Abdulsalam Shaikh
Keyword(s):  
Power Consumption ◽  
Short Distance ◽  
Cell Phone ◽  
Power Transmission ◽  
Wireless Power Transfer ◽  
Comfort Level ◽  
Wireless Power ◽  
Large Numbers ◽  
Set Up ◽  
Wiring System

There are many small devices like cell phone, which requires small amount of power for charging their battery. The large numbers of these devices in use has resulted into substantial amount of power consumption. The wiring installation to cater to this demand has becomes complex and inconvenient. Wireless power transmission to such gadgets can relieve the wiring system and increase the comfort level of the user. This paper discusses an experimental set up which was successfully designed and tested for charging of battery of small devices like cell phone.

scholarly journals Power Consumption Improvements in AES Decryption Based on Null Convention Logic

2021 ◽  
Vol 15 ◽  
pp. 254-264
Author(s):  
Toi Le Thanh ◽  
Lac Truong Tri ◽  
Hoang Trang
Keyword(s):  
Integrated Circuits ◽  
Power Consumption ◽  
Circuit Design ◽  
Design Method ◽  
Circuit Model ◽  
Maximum Speed ◽  
Test Model ◽  
Asynchronous Circuit ◽  
Design Models ◽  
Null Convention Logic

In this paper, we propose a new asynchronous method based on a Null Convention Logic (NCL) to improve power consumption for low power integrated circuits. The reason is because the NCL based designs do not use a clock, it eliminates the problems related to the clock and its power consumption reduces significantly. To show the advantages of the selected method, we propose two design models using the synchronous circuit design method, and the NCL based asynchronous circuit design method. To test these two design models conveniently, we also propose an extra automatic test model. In this study, the AES decryption is used as an example to illustrate both methods. The two above proposed AES decryption models are simulated and synthesized at the various corners by VCS and Design Compiler tool using TSMC standard cell libraries in 65nm technology. The synthesis results of the two above mentioned models indicated that the power consumption of the NCL based asynchronous circuit model is 3 times lower than that of the synchronous circuit model, and significantly improves (from 94% to 98%) compared with the results of the other authors. The processing speed of the NCL based asynchronous circuit paradigm is able to achieve a maximum speed.

Ship Hull and Machinery Optimization Using Physics-Based Design Software

2002 ◽  
Vol 39 (02) ◽  
pp. 109-117
Author(s):  
Changben Jiang ◽  
Brian Forstell ◽  
David Lavis ◽  
Owen Ritter
Keyword(s):  
Fuel Consumption ◽  
Gas Turbines ◽  
Operating Cost ◽  
Ship Design ◽  
Total Weight ◽  
Maximum Speed ◽  
Fuel Savings ◽  
Shaft Power ◽  
Prime Movers ◽  
Design Software

Ship design software is applied to the study of improving the design of an existing cruiser. The focus of this paper is on exploring machinery configuration options that could significantly reduce the overall fuel consumption and, consequently, reduce the total weight and operating cost of the ship. The prime movers, most likely gas turbines, of the majority of the naval ships today are usually designed for maximum speed, which is much higher than the ship's cruise speed. In the case of the CG47, the shaft power required at cruise speed is only 16% of that at maximum speed. Consequently, the specific fuel consumption is 64% higher at cruise speed because the gas turbines are delivering only a fraction of their rated power. In this paper, auxiliary engines are introduced and their overall impact on ship design are studied. Four different machinery configurations, namely, CODOG, CODAG, COGOG and COGAG, are examined. Results show that as much as 34% fuel savings could be achieved and the overall reduction in total ship weight could be as high as 9%.

Replacement of Analog Automatic Voltage Regulator using Digital Technology

2016 ◽  
Vol 6 (1) ◽  
pp. 53
Author(s):  
Ersalina Werda Mukti ◽  
Sulistyo Wijanarko ◽  
Anwar Muqorobin
Keyword(s):  
Power Consumption ◽  
Digital Technology ◽  
Power Plants ◽  
Alternative Solution ◽  
Voltage Regulator ◽  
Local Market ◽  
Electronic Components ◽  
Current Technology ◽  
Op Amp ◽  
Automatic Voltage Regulator

Before the 90’s, many power plants in Indonesia were equipped with analog controllers and now those power plants are still in operation to produce electricity. One of those controller parts is Automatic Voltage Regulator (AVR). If a failure occurs in the AVR, the economic solution is by replacing the damaged electronic component with new component. However this method will not solve the problem if the components are not available in local market or become obsolete. Purchasing the new AVR that compatible with other controller parts cannot be done again because the analog controllers are no longer produced by the vendor. Furthermore, replacement of all the controllers with the current technology become expensive.  According to this, an alternative solution is proposed in this paper by designing an AVR that compatible with other controller parts and considering the availability of the electronic components in local market. ATmega8 microcontroller is used to implement a digital AVR and employing op amp based as its signal conditioning. The result shows that the digital AVR can reduce hardware size and power consumption. The digital AVR also meets the computation rate of the computation signal.

scholarly journals Instruments and Methods: Radio-Echo Equipment for Depth Sounding of Temperate Glaciers

1980 ◽  
Vol 25 (93) ◽  
pp. 477-486 ◽  
Author(s):  
Marteinn Sverrisson ◽  
Ævar Jóhannesson ◽  
Helgi Björnsson
Keyword(s):  
Power Consumption ◽  
Frequency Band ◽  
Total Weight ◽  
Range Resolution ◽  
Radio Echo Sounding ◽  
Depth Sounding ◽  
Echo Sounding

Abstract Radio echo-sounding equipment has been designed, and used for depth sounding on temperate glaciers in Iceland. Two devices have been built. Mark I operates in the frequency band 2 to 5 MHz. The overall range is 100 to 1000 m. The arrival of the echo can be timed with an accuracy which corresponds to 20 m resolution. The equipment has been used for routine soundings on Mýrdalsjökull and Vatnajökull for the last two years. Mark II operates at 2 to 10 MHz. The range is from 30 to 400 m and the range resolution is 8 m. The equipment has been used for successful soundings on valley glaciers. The power consumption of the whole system is 18 W plus 72 W for the oscilloscope (Tektronix Model 465). The voltage is supplied from 12 V car batteries. The total weight of the equipment is about 35 kg plus the weight of batteries. The antennae are contained in 16 mm plastic tubes. The equipment is placed on two sledges and towed behind a snowmobile or a skidoo. A continuous sounding record is photographed from the oscilloscope.

FLIGHT PERFORMANCE OF VARIOUS BLENDED WING-BODY SMALL UAV DESIGNS

2015 ◽  
Vol 75 (8) ◽  
Author(s):  
Rizal E. M. Nasir ◽  
Firdaus Mohamed ◽  
Ramzyzan Ramly ◽  
Aman M. I. Mamat ◽  
Wirachman Wisnoe ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Optimal Number ◽  
Total Weight ◽  
Maximum Speed ◽  
Flight Performance ◽  
Endurance Range ◽  
Small Uav ◽  
Flight Envelope ◽  
Blended Wing Body ◽  
Near Future

Currently there are four BWB designs that have been tested in the LST-1 wind tunnel at Flight Technology and Test Centre (FTTC), UiTM since 2005. The objective of this paper is to analyse their flight performance of these four BWB UAVs in terms of airspeed flight envelope, endurance, range and rate of climb as a function of the number of batteries and to determine the optimal number of batteries to be carried for 1-hour endurance mission and 3-hour endurance mission. The targeted cruising-loitering airspeed mission for all these BWBS are around 20 to 40 mph (8.9 m/s to 17.8 m/s) and they are to possess the lowest take off/landing speed and the highest maximum speed possible. This paper also seeks to find the best design of the four to explore its maximum potential in the near future where a prototype will be constructed. Unlike conventionally powered aircraft that uses fuel, which burns out thus reducing total weight of aircraft as it flies for long hours, these four BWB electric-powered vehicles carry batteries and the weight shall remain constant throughout the flight. 

Sign in / Sign up

Export Citation Format

Share Document