Reply to "Too large power consumption and no explicit explanation for the small structure size"

Fast Fourier transform (FFT) is widely used in digital signal processing and telecommunications, particularly in orthogonal frequency division multiplexing systems, to overcome the problems associated with orthogonal subcarriers. A new algorithm of radix-3 FFT has been introduced in this work. The DFT of length N can be realized from three DFT sequences; each of length N/3.Radix-3 algorithm reduces the number of multiplications required for realizing DFT.A novel design of Radix-3pipelined Single path Delay Feedback (R3SDF) FFT using MCSLA has been proposed in this paper. First, the pipelined radix-3 SDF FFT method has been designed. It has less area and large power consumption and delay. In order to overcome these problems, modified carry select adder structure is used to perform the adder operation for reducing the power consumption and delay. Finally, the MCSLA is integrated into radix-3 SDF FFT processor. The hardware complexity and execution time for implementing radix-3 FFT algorithm can be reduced than other FFTs.

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Application of PVStorage System in Typical Industrial Users

E3S Web of Conferences ◽

10.1051/e3sconf/201911802068 ◽

2019 ◽

Vol 118 ◽

pp. 02068

Author(s):

Haiwen Wang ◽

Daoyuan Wen ◽

Qunyin Gu ◽

Fangqin Li ◽

Weijun Gao ◽

...

Keyword(s):

Power Consumption ◽

High Reliability ◽

Electricity Consumption ◽

Optical Storage ◽

Large Power ◽

Storage Model ◽

Industrial Enterprises ◽

Photovoltaic Power ◽

Roof Area ◽

The Cost

The power consumption of industrial enterprises is characterized by large power consumption and high reliability requirement, so the cost of electricity consumption is relatively high. Distributed photovoltaic power generation is clean and environmentally friendly, making full use of the roof area to generate electricity. Based on the characteristics of distributed photovoltaic and energy storage, this paper constructs the distributed optical storage model and operation strategy. In addition, this paper takes an industry as an example to carry out relevant verification and analysis.

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An Intrusion Tolerance Method Based on Energy Attack for Wireless Sensor Network

International Journal of Distributed Sensor Networks ◽

10.1155/2015/848636 ◽

2015 ◽

Vol 2015 ◽

pp. 1-9 ◽

Cited By ~ 1

Author(s):

Yu Jiang ◽

Jie Huang

Keyword(s):

Wireless Sensor Network ◽

Power Consumption ◽

Sensor Network ◽

Wireless Sensor ◽

Intrusion Tolerance ◽

Malicious Nodes ◽

Large Power ◽

Protection Method ◽

Active Protection ◽

Tolerance Method

Wireless sensor network is vulnerable to malicious attacks because of the broadcast nature of wireless signal. In order to overcome the shortcomings of existing methods, this paper presents an intrusion tolerance method against malicious nodes. Different from the traditional intrusion tolerance methods based on encryption, authentication, and multirouting, the proposed method uses active protection to achieve intrusion tolerance. Small power consumption of many normal nodes is exchanged for large power consumption of relatively small number of malicious nodes to decrease the lifetime of malicious nodes. Theoretical analysis and test results show that the proposed methods not only prolong the lifetime of the sensor network but also achieve the effective protection against malicious nodes. The active protection method provides new ideas for the security in WSN.

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Low-Power GPS-Disciplined Oscillator Module for Distributed Wireless Sensor Nodes

Electronics ◽

10.3390/electronics10060716 ◽

2021 ◽

Vol 10 (6) ◽

pp. 716

Author(s):

Tyler Boehmer ◽

Sven Bilén

Keyword(s):

Power Consumption ◽

Low Power ◽

Average Power ◽

Sensor Arrays ◽

Extended Period ◽

Sensor Nodes ◽

Wireless Sensor ◽

Operational Environment ◽

Large Power ◽

Crystal Oscillators

Many sensor systems, such as distributed wireless sensor arrays, require high-accuracy timing while maintaining low power consumption. Although the capabilities of chip-scale atomic clocks have advanced significantly, their cost continues to be prohibitive for many applications. GPS signals are commonly used to discipline local oscillators in order to inherit the long-term stability of GPS timing; however, commercially available GPS-disciplined oscillators typically use temperature-controlled oscillators and take an extended period of time to reach their stated accuracy, resulting in a large power consumption, usually over a watt. This has subsequently limited their adoption in low-power applications. Modern temperature-compensated crystal oscillators now have stabilities that enable the possibility of duty cycling a GPS receiver and intermittently correcting the oscillator for drift. Based on this principle, a design for a GPS-disciplined oscillator is presented that achieves an accuracy of 5 μs rms in its operational environment, while consuming only 45 mW of average power. The circuit is implemented in a system called geoPebble, which uses a large grid of wireless sensors to perform glacial reflectometry.

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Research and Design of Range Positioning System Based on Ultrasonic Sensor for Intelligent Mobile Robot

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.201-203.1886 ◽

2011 ◽

Vol 201-203 ◽

pp. 1886-1890 ◽

Cited By ~ 1

Author(s):

Jun Han ◽

Rui Li Chang

Keyword(s):

Power Consumption ◽

Mobile Robot ◽

Obstacle Avoidance ◽

Intelligent Control ◽

Autonomous Navigation ◽

Ultrasonic Sensor ◽

Positioning System ◽

Large Power ◽

Research And Design ◽

Important Branch

The technology of mobile robot is an important branch in robot research. In order to endow robot with capacity of intelligent control and autonomous navigation, and solve the problems such as high cost and large power consumption, a range positioning system based on ultrasonic sensor for intelligent mobile robot is designed in this paper. The system makes robot achieve some functions such as alarming, obstacle avoidance and the positioning.

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Efficient energy consumption for indoor mobile robot prototype under illumination

MATEC Web of Conferences ◽

10.1051/matecconf/201819711016 ◽

2018 ◽

Vol 197 ◽

pp. 11016

Author(s):

Seilla Angelina ◽

Shofuro Afifah ◽

Paramadina Susamti ◽

Rizki Ardianto Priramadhi ◽

Denny Darlis

Keyword(s):

Energy Efficiency ◽

Energy Consumption ◽

Power Consumption ◽

Mobile Robot ◽

Robot Navigation ◽

Visible Light Communication ◽

Mobile Robot Navigation ◽

Energy Crisis ◽

Lighting System ◽

Large Power

In the next 20 years, energy consumption is expected to increase up to 30% and it will affect energy crisis. Energy crisis can be resolved by energy efficiency. The context of this paper is about the energy efficiency of a mobile robot in the industrial warehouse. Communications media which commonly used in mobile robot navigation such as Laser need large power consumption. In order to reduce power consumption, the system of this paper is designed to use visible light communication (VLC) for mobile robot navigation because VLC only utilize lights as the transmitter. Method of this paper is sending the data contained navigation coordinates which modulated on the lighting system, then data will be received by the photodetector and processed as mobile robot's navigation. From above system, by using 5,68-watt power on lighting system can be used to transmit navigation data with the range up to 2 meters. In the receiver side, a photodetector which uses as receiver generate maximum power 4,14 watt at 10 cm of height between transmitter and receiver while minimum generated power is 3,21 watt at 250 cm of height. The conclusion of this paper is generated power by a photodetector in navigation process mobile robot is affected by angle and distance between transmitter and receiver.

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A SELECTIVE REPLACEMENT METHOD FOR TIMING-ERROR-PREDICTING FLIP-FLOPS

Journal of Circuits System and Computers ◽

10.1142/s0218126612400130 ◽

2012 ◽

Vol 21 (06) ◽

pp. 1240013 ◽

Cited By ~ 1

Author(s):

YUJI KUNITAKE ◽

TOSHINORI SATO ◽

HIROTO YASUURA ◽

TAKANORI HAYASHIDA

Keyword(s):

Power Consumption ◽

Supply Voltage ◽

Large Area ◽

Power Supply Voltage ◽

Timing Error ◽

Large Power ◽

Technology Scaling ◽

Replacement Method ◽

Area Overhead ◽

Spatial Redundancy

The aggressive technology scaling brings us new challenges, such as parameter variations, soft errors, and device wearout. They increase unreliability of transistors and thus will become a serious problem in SoC designs. The design margin in the supply voltage will be overestimated, which results in large power consumption. To eliminate the waste power consumption due to the overestimated power supply voltage, spatial redundancy is commonly utilized. Based on the spatial redundancy, a lot of dual-sensing flip-flops (FFs) are proposed. These FFs require additional circuits consisting of a redundant FF and a comparator. Thus, they suffer large area overhead. In order to reduce the area overhead, this paper proposes a selective replacement method. We focus our attention on a timing-error-predicting FF, named Canary FF and evaluate the selective replacement method. We apply it to two commercial processors, Toshiba's MeP and Renesas Electronics's M32R. In the case of MeP, the area overhead is reduced from 55% to 11%.

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Experimental Study on the Crushing Properties of Corn Stalks in Square Bales

Processes ◽

10.3390/pr10010168 ◽

2022 ◽

Vol 10 (1) ◽

pp. 168

Author(s):

Jie Zhang ◽

Bin Feng ◽

Xiuzhen Yu ◽

Chao Zhao ◽

Hao Li ◽

...

Keyword(s):

Moisture Content ◽

Power Consumption ◽

Water Content ◽

Inclination Angle ◽

Interaction Effect ◽

Test Machine ◽

Hammer Mill ◽

Blade Angle ◽

Large Power ◽

Crushing Force

With the development of straw baling mechanization technology, straw is stored in the form of square baling or round baling. At present, hammer mill or the guilt-cutting and rubbing combined mill is widely used to crush square bales of straw. These two kinds of crushing equipment have disadvantages such as low productivity, large power consumption, and poor crushing effect. This paper aims to study and analyze the crushing characteristics of square baled straw after unbaling, and lay a theoretical foundation for the later research and development of a special square baled straw crusher with high productivity, low power consumption, good crushing effect, and the simulation of the square baled corn straw crushing process. For this purpose, this study carried out a corn bale crushing experiment on the Instron 8801 fatigue test machine, and studied the effects of blade angle, water content and loading speed on corn bale crushing force through the response surface method. Test results showed that the crushing process includes the compression stage and shearing stage; in terms of single factor effect, with the increase in water content and blade angle, the crushing force of the corn bale increased, but the loading speed had no significant effect on the crushing force of the corn bale. In terms of interaction effect, there was interaction effect between moisture content and blade inclination angle, when moisture content was 10%, with the increase in blade inclination angle, the incremental speed of the crushing force also increased gradually. When the blade inclination angle was 10°, with the increase in moisture content, the incremental speed of the crushing force also increased, and the interaction effect of them jointly acted on the crushing force of the corn bales.

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Study of Power Generation System Based on Black Smokers

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.535.185 ◽

2014 ◽

Vol 535 ◽

pp. 185-191

Author(s):

Ze De Liang ◽

Shu Jie Wang

Keyword(s):

Water Vapor ◽

Power Consumption ◽

Hot Water ◽

Working Fluid ◽

Large Power ◽

Heat Exchanger Design ◽

Closed Circle ◽

Open Circle ◽

Black Smokers ◽

Closed Circle System

The OTEC system of the paper studying is different with the traditional OTEC system, which takes the marine geothermal energy (black smokers) as the heat source, takes cold seawater of deep sea as the cold source. The paper analyzes and calculates some parameters of open-circle system which uses water vapor as the working fluid and the closed-circle system which uses pure ammonia as the working fluid, those parameters include thermal efficiency, heat load of condenser and evaporator, pump power consumption, and the net power output. The results show that: with the closed-circle system which uses pure ammonia as the working fluid, the large power consumption of hot water pump is the biggest problem for the open-circle system, besides reducing the temperature of hot fluid and increasing the flash pressure are disadvantageous for open-circle system; but water vapor as the working fluid helps to reduce the load of condenser and evaporator, which is very advantageous for heat exchanger design.

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