The Design of Portable Electromyograph and Induced Instrument

2012 ◽  
Vol 482-484 ◽  
pp. 439-443
Author(s):  
Gang Qin ◽  
Han Li ◽  
Xiao Gang Feng
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
High Performance ◽  
Low Power Consumption ◽  
Price Ratio ◽  
Semg Signal ◽  
Main Processor ◽  
Complete Functions ◽  
Low Performance ◽  
And Storage

Aiming at the complex operation , low performance-to-price ratio and the weak adaptability of the like products at present, this paper designs one type of portable electromyograph and induced instrument, The detector uses S3C2440, low power consumption but high performance ,as its main processor. it designs sEMG signal detection module by itself, and proceed electromyography collection, display and storage in time. The practical use shows that the instrument is chiefly featured by complete functions, low power consumption, simple portable, low price, and extensive application etc.

scholarly journals Ultracompact and low-power-consumption silicon thermo-optic switch for high-speed data

Nanophotonics ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 937-945
Author(s):  
Ruihuan Zhang ◽  
Yu He ◽  
Yong Zhang ◽  
Shaohua An ◽  
Qingming Zhu ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
High Speed ◽  
High Performance ◽  
Pulse Amplitude ◽  
Telecommunication Networks ◽  
Low Power Consumption ◽  
Power Efficient ◽  
High Speed Data ◽  
On Chip

AbstractUltracompact and low-power-consumption optical switches are desired for high-performance telecommunication networks and data centers. Here, we demonstrate an on-chip power-efficient 2 × 2 thermo-optic switch unit by using a suspended photonic crystal nanobeam structure. A submilliwatt switching power of 0.15 mW is obtained with a tuning efficiency of 7.71 nm/mW in a compact footprint of 60 μm × 16 μm. The bandwidth of the switch is properly designed for a four-level pulse amplitude modulation signal with a 124 Gb/s raw data rate. To the best of our knowledge, the proposed switch is the most power-efficient resonator-based thermo-optic switch unit with the highest tuning efficiency and data ever reported.

Development of New Type Centralized Engineering Seismograph

2013 ◽  
Vol 333-335 ◽  
pp. 2412-2416
Author(s):  
Jin Feng Yan ◽  
Ming Deng ◽  
Yan Jun Li ◽  
Qi Sheng Zhang
Keyword(s):  
Power Consumption ◽  
Embedded System ◽  
Low Power ◽  
Program Implementation ◽  
High Performance ◽  
Hardware Design ◽  
Low Power Consumption ◽  
System Solution ◽  
Software Program ◽  
New Type

SoPC technology is a high-performance, low-power consumption embedded system solution based on embedded microprocessor, providing a new way for developing new type centralized engineering seismograph. The paper presents the development of a new type centralized engineering seismograph based on SoPC technology, which adopts FPGA design based on SoPC technology for the hardware design and embedded software program development of the 48-channel engineering seismograph. According to actual needs of currently available centralized engineering seismograph, combining the actual characteristics of SoPC embedded technology, a portable, low-power consumption and high-performance new type centralized engineering seismograph is constructed. The paper describes the hardware design and software program implementation of the centralized engineering seismograph in detail.

scholarly journals Multi-Channel Data Acquisition System Based on FPGA and STM32

2020 ◽  
Vol 38 (2) ◽  
pp. 351-358
Author(s):  
Yue Zhang ◽  
Linwei Tao
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Dynamic Range ◽  
Sampling Rate ◽  
High Capacity ◽  
Acquisition System ◽  
Total Power ◽  
Low Power Consumption ◽  
Signal Acquisition ◽  
And Storage

In order to realize the acquisition and storage of underwater acoustic signals for aiming at the requirements of multi-channel, low power consumption and small volume for underwater receiver extension of sonar system, a multi-channel signal acquisition and storage system based on FPGA and STM32 with variable number of working channels and sampling frequency is designed, in which the system is consisted of 8 pieces, 8 channel and 24 bits high dynamic range Δ-Σ ADS1278 ADC chip to synchronous multi-channel analog signal acquisition. FPGA, as the acquisition sequence and logic control, reads and collates the ADC chip data and writes it into the internal high-capacity FIFO, and adds corresponding operations according to the characteristics of FIFO in an application. SMT32 single-chip microcomputer reads the FIFO data through the high-speed SPI interface with FPGA and writes the multi-channel data into the high-capacity SD card. The testing results have verified that the system has characteristics such as stable and reliable, easy configuration, low power consumption, can guarantee the multichannel data serial transmission, storage, accurate, up to 64 analog signals at the same time the real-time collection and storage, top 20 kHz sampling rate, the system total power of the system of about 3W, data rates up to 100 Mb/s, fully meet the needs of underwater sound acquisition system.

Low-power consumption seamless wireless and wired links using transparent waveform transfer

2014 ◽  
Vol 3 (5-6) ◽  
Author(s):  
Tetsuya Kawanishi
Keyword(s):  
Power Consumption ◽  
Optical Fiber ◽  
Low Power ◽  
Millimeter Wave ◽  
Optical Fibers ◽  
High Speed ◽  
High Performance ◽  
Digital Signal ◽  
Low Power Consumption ◽  
Wireless Links

AbstractThis paper describes wired and wireless seamless networks consisting of radiowave and optical fiber links. Digital coherent technology developed for high-speed optical fiber transmission can mitigate signal deformation in radiowave links in the air as well as in optical fibers. Radio-over-fiber (RoF) technique, which transmits radio waveforms on intensity envelops of optical signals, can provide direct waveform transfer between optical and radio signals by using optical-to-electric or electric-to-optical conversion devices. Combination of RoF in millimeter-wave bands and digital coherent with high-performance digital signal processing (DSP) can provide wired and wireless seamless links where bit rate of wireless links would be close to 100 Gb/s. Millimeter-wave transmission distance would be shorter than a few kilometers due to large atmospheric attenuation, so that many moderate distance wireless links, which are seamlessly connected to optical fiber networks should be required to provide high-speed mobile-capable networks. In such systems, reduction of power consumption at media converters connecting wired and wireless links would be very important to pursue both low-power consumption and large capacity.

Design of Velocity Measuring System of Car Based on MCU

2013 ◽  
Vol 373-375 ◽  
pp. 363-366
Author(s):  
Jing Sheng Yu ◽  
Hong Qiang Sun
Keyword(s):  
Mathematical Model ◽  
Power Consumption ◽  
Low Power ◽  
Control Systems ◽  
Basic Principle ◽  
High Performance ◽  
Low Cost ◽  
Measuring System ◽  
Low Power Consumption ◽  
Velocity Measuring

It describes the basic principle of velocity parameters measuring of car in operation, establishes the related mathematical model. It disigns an intelligent, integrated digital solutions to combination instrumentation of the car based on MC9S12DP256B. This system has advantages of high performance, high precision, low cost, low power consumption, good stability, sensitive respond and expandability. The system measures and shows online velocity parameters of the car. It has fuction such as safety alarm. The system reserves bus interface such as SCI and CAN, correspondences easily with other electronic engine control systems of the car.

The Application of Programmable Controller to Chip Design

2013 ◽  
Vol 273 ◽  
pp. 722-725
Author(s):  
Shi Hong Lan ◽  
Jian Zhang
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Automatic Control ◽  
High Performance ◽  
Low Power Consumption ◽  
System Software ◽  
Semiconductor Technology ◽  
Industrial Control ◽  
Chip Design ◽  
Chip Technology

In the field of modern industrial control, PLC has become the important equipment in automatic control. With the development of semiconductor technology, chip technology, the embedded PLC chipset emerged. The chipset microcontroller cores, PLC system software is loaded with high-performance, low power consumption, small size and other characteristics. User to flexibly customize according to their needs, using chipsets embedded PLC. This paper described the PLC chip design and application.

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