Research and Design of the DSRC Device Measuring Instrument

2014 ◽  
Vol 556-562 ◽  
pp. 2577-2580
Author(s):  
Xin You Li ◽  
Ze Bin Xu ◽  
Jin Xu Guo
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Radio Frequency ◽  
Low Power Consumption ◽  
Measuring Instrument ◽  
Test Results ◽  
The Core ◽  
Actual Operation ◽  
Design Proposal ◽  
Research And Design

Along with an increasingly wide utilization in the fields of ETC application, it becomes more and more important to measuring quickly and accurately on the key equipment of ETC system, such as OBU and RSU. This article is based on the measuring requirement of ETC system and propose a new design proposal by selecting STR715FR0 chip base on the core of ARM7TDMI series and 5.8GHz radio frequency transceiver circuit, the actual operation and test results show that the DSRC device Measuring Instrument works with stability, reliability and low power consumption, which enables convenient and efficient measuring to ensure the reliability and consistency of the ETC key equipment.

The Research and Design of the Adaptive Pulse Demagnetizer

2012 ◽  
Vol 182-183 ◽  
pp. 427-430
Author(s):  
Li Feng Wei ◽  
Liang Cheng ◽  
Xing Man Yang
Keyword(s):  
Adaptive Control ◽  
Power Consumption ◽  
Low Power ◽  
Control Method ◽  
Experimental Results ◽  
Low Power Consumption ◽  
Reliable Operation ◽  
Charge Current ◽  
Long Life ◽  
Research And Design

A adaptive control method of the pulse demagnetizer was presented, Can adjust the strength of the charge current automatically according to the changes of the magnetic content to ensure the constant of the magnetic field.The experimental results have shown that it has the advantages of low power consumption, strong anti-interference capability, stable and reliable operation, long life and good demagnetizing effect, when compared to the conventional demagnetizers.

Counter System Design According to ATmega16L-8PC on the Machine Production Line

2011 ◽  
Vol 58-60 ◽  
pp. 680-684
Author(s):  
Xiao Li Wang
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
System Design ◽  
Production Line ◽  
Cost Effective ◽  
Low Power Consumption ◽  
Electronic Technology ◽  
Line System ◽  
The Core ◽  
Essential Tool

Along with electronics technique of development rapidly, SCM has become essential tool to the development of modern electronic technology. This paper introduces the core of ATmega16L-8PC microcontroller, and the MAX485 with low-power transceiver for the system of products counting on the production line system. The system is highly integrated, strongly stable and low power consumption, very convenient use and maintenance, with high Cost effective and practical value.

scholarly journals Fully-Differential Opamp Design

2021 ◽  
Author(s):  
Elyes Balti
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Operational Amplifier ◽  
High Performance ◽  
Building Blocks ◽  
High Gain ◽  
Low Power Consumption ◽  
Fully Differential ◽  
The Core ◽  
Design Requirements

Operational amplifier is considered as the core of the analog building blocks. High performance opamp must exhibit high gain, wide bandwidth, low power consumption and rail-to-rail output swings. In this work, we propose to design a fully-differential opamp design to satisfy certain design requirements and specifications.

Low Power Design for Wireless RF Transceiver–An Industrial View

1997 ◽  
Vol 07 (01) ◽  
pp. 1-16
Author(s):  
Nan-Lei Wang ◽  
Douglas Adam
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Radio Frequency ◽  
Cellular Phone ◽  
Low Power Design ◽  
Low Power Consumption ◽  
Great Success ◽  
Rf Transceiver ◽  
Digital Modulation ◽  
Function Block

In recent years, wireless communication in the radio frequency has a rapid growth, most noticeably the cellular phone. Analog FM systems, such as AMPS and TACS, have won a great success. In the 90s, digital systems appear, such as GSM in Europe, IS54/136 and IS95 in US, and PDC in Japan. Most recently, PCS draws the attention; there are many standards proposed around the world and they all use digital modulation schemes. With the ISM bands at 900 MHz and 2.4 MHz, many other innovative application will become possible. Unlike the computer such RF wireless gadgets contain one peculiar subsystem: the RF transceiver. The RF transceiver translates the baseband voice and data to and from a radio frequency signal which is emitted and received by antennae. Each system specifies the operation frequency, the transmit power, the receiver sensitivity, and the signal quality. The RF transceiver must satisfy all these requirements. As technology progresses, portable product becomes the dominant one which relies on the rechargeable battery. To maintain a decent talk time standby time, the completed product must be designed with low power consumption in mind. In the portable cellular phone the RF transceiver faces the greatest challenge in the low power design since it is the most power hungry portion: the transmitter consumes 90% power during transmission in the FM cellular phone nowadays. To achieve low power consumption of the RF transceiver, the designer has to work to: (1) transceiver architecture to reduce parts count and therefore power comsumption. (2) selection/design the lowest power comsumption IC/module for a given function block. (3) maintain competitive pricing and small size. In this article, FM system will be used as the baseline example to illustrate the importance of the RF transceiver in low power application. The RF transceiver architecture is described first, followed by the introduction to each function block. State-of-the-art products for each function block will be referred to. Theorectical limit of power consumption for each block will be discussed. Impact from digital modulation on RF circuit design will be reviewed as well.

Development of a Portable Phosphate Detection System Using Cobalt Based Microelectrodes

2012 ◽  
Vol 503 ◽  
pp. 249-254
Author(s):  
Bei Lei Deng ◽  
Jian Hua Tong ◽  
Yin Bai ◽  
Chao Bian ◽  
Gui Li Yan ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Power Consumption ◽  
Low Power ◽  
Electrochemical Reaction ◽  
Detection System ◽  
Low Power Consumption ◽  
Phosphate Solution ◽  
Test Results ◽  
Portable Detection ◽  
Phosphate Detection

This paper presents a portable phosphate detection system based on electrochemical reaction mechanism using cobalt modified microelectrodes. The microelectrodes were fabricated by MEMS (Micro-electromechanical Systems) technology and modified by electrodeposition of cobalt. The performances of the microsensors were characterized by testing a series of standard phosphate solution. MSP430F4793 microcontroller was applied to control the detection process at low power consumption. Comparing with the test results achieved by using traditional electrochemical workstation method, this portable detection system has similar characteristics with the concentration range from 10-6 to 10-4 mol/L.

Optimal design of a high homogeneous and small-size shim coil for atomic spin gyroscope based on 0-1 linear programming

2020 ◽  
Vol 64 (1-4) ◽  
pp. 165-172
Author(s):  
Dongge Deng ◽  
Mingzhi Zhu ◽  
Qiang Shu ◽  
Baoxu Wang ◽  
Fei Yang
Keyword(s):  
Linear Programming ◽  
Power Consumption ◽  
Low Power ◽  
Optimization Design ◽  
Structural Parameters ◽  
Axial Position ◽  
Low Power Consumption ◽  
Optimal Method ◽  
Atomic Spin ◽  
Shim Coil

It is necessary to develop a high homogeneous, low power consumption, high frequency and small-size shim coil for high precision and low-cost atomic spin gyroscope (ASG). To provide the shim coil, a multi-objective optimization design method is proposed. All structural parameters including the wire diameter are optimized. In addition to the homogeneity, the size of optimized coil, especially the axial position and winding number, is restricted to develop the small-size shim coil with low power consumption. The 0-1 linear programming is adopted in the optimal model to conveniently describe winding distributions. The branch and bound algorithm is used to solve this model. Theoretical optimization results show that the homogeneity of the optimized shim coil is several orders of magnitudes better than the same-size solenoid. A simulation experiment is also conducted. Experimental results show that optimization results are verified, and power consumption of the optimized coil is about half of the solenoid when providing the same uniform magnetic field. This indicates that the proposed optimal method is feasible to develop shim coil for ASG.

An Ultra-low Power Consumption MAC Protocol Complied with IEEE 802.15.4/4e for Wireless Smart Utility Networks

2016 ◽  
Vol 136 (11) ◽  
pp. 1555-1566 ◽  
Author(s):  
Jun Fujiwara ◽  
Hiroshi Harada ◽  
Takuya Kawata ◽  
Kentaro Sakamoto ◽  
Sota Tsuchiya ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Ieee 802.15.4 ◽  
Mac Protocol ◽  
Low Power Consumption ◽  
Ultra Low Power
Sign in / Sign up

Export Citation Format

Share Document