scholarly journals Development of a Wireless Temperature Sensor Using Polymer-Derived Ceramics

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Ran Zhao ◽  
Gang Shao ◽  
Ni Li ◽  
Chengying Xu ◽  
Linan An
Keyword(s):  
High Temperature ◽  
Power Consumption ◽  
Embedded System ◽  
Real World ◽  
Temperature Sensor ◽  
Wireless Transmission ◽  
Low Power Consumption ◽  
Compact Size ◽  
Real World Applications ◽  
The Embedded System

A temperature sensor has been developed using an embedded system and a sensor head made of polymer-derived SiAlCN ceramics (PDCs). PDC is a promising material for measuring high temperature and the embedded system features low-power consumption, compact size, and wireless transmission. The developed temperature sensor has been experimentally tested to demonstrate the possibility of using such sensors for real world applications.

Micro-Power Wireless CSMA/CA Algorithm Improvement and Simulation Based on the Electric Power Business

2014 ◽  
Vol 494-495 ◽  
pp. 1640-1646
Author(s):  
Yu Lan ◽  
Xin Lu ◽  
Ye Shen He ◽  
Yun Feng Li
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Collision Detection ◽  
Wireless Transmission ◽  
Low Power Consumption ◽  
Mac Layer ◽  
Electric System ◽  
Simulation Based ◽  
Micro Power ◽  
Fixed Power

In the micro-power wireless transmission of the electric system, positions among modes are relatively fixed, power business data is reported at specific time points, and time distribution presents great differences. Key technologies of IEEE802.15.4 MAC layer protocol is expounded, shortages of collision detection and CSMA/CA on power business support, etc. are discussed, self-adaptive low-power consumption CSMA/CA algorithm which is more suitable for business of the electric system are designed and improved, and the algorithm goes through simulation experiment against the business characteristics of micro-power wireless network of the electric system. The simulation result demonstrates the algorithm may be greatly adapted to changes of network traffic under a relatively fixed environment of network topology on the premise of low power consumption.

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 An Autonomous Wireless Sensor Node Based on Hybrid RF Solar Energy Harvesting

2021 ◽  
Vol 2021 ◽  
pp. 1-25
Author(s):  
John Nicot ◽  
Ludivine Fadel ◽  
Thierry Taris
Keyword(s):  
Power Consumption ◽  
Embedded System ◽  
Low Power ◽  
Environmental Data ◽  
Low Power Consumption ◽  
Wireless Sensor Node ◽  
Sleep State ◽  
Total Consumption ◽  
Power Sources ◽  
Solar Energy Harvesting

The widespread deployment of the Internet of Things (IoT) requires the development of new embedded systems, which will provide a diverse array of different intelligent functionalities. However, these devices must also meet environmental, maintenance, and longevity constraints, while maintaining extremely low-power consumption. In this work, a batteryless, low-power consumption, compact embedded system for IoT applications is presented. This system is capable of using a combination of hybrid solar and radiofrequency power sources and operates in the 900 MHz ISM band. It is capable of receiving OOK or ASK modulated data and measuring environmental data and can transmit information back to the requester using GFSK modulated data. The total consumption of the system during its sleep state is 920 nW. Minimum power required to operate is −15.1 dBm or 70 lux, when using only radiofrequency or solar powering, respectively. The system is fully designed with components off the shelf (COTS).

Development of shutter-less SOI diode uncooled IRFPA for compact size and low power consumption

2019 ◽  
Author(s):  
Daisuke Fujisawa ◽  
Yasuhiro Kosasayama ◽  
Takao Takikawa ◽  
Hisatoshi Hata ◽  
Takashi Takenaga ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Low Power Consumption ◽  
Compact Size

Highly Robust Flexible Ferroelectric Field Effect Transistors Operable at High Temperature with Low‐Power Consumption

2019 ◽  
Vol 30 (1) ◽  
pp. 1906131 ◽  
Author(s):  
Chuanlai Ren ◽  
Gaokuo Zhong ◽  
Qun Xiao ◽  
Congbing Tan ◽  
Ming Feng ◽  
...  
Keyword(s):  
High Temperature ◽  
Power Consumption ◽  
Low Power ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Low Power Consumption

scholarly journals Can Frequency Diverse Array Prevent Wireless Eavesdropping_for_techRxiv.pdf

2019 ◽  
Author(s):  
Yuan Ding ◽  
Adam Narbudowicz
Keyword(s):  
Real World ◽  
Free Space ◽  
Critical Issue ◽  
Time Instant ◽  
Physical Layer ◽  
Wireless Security ◽  
Wireless Transmission ◽  
Real World Applications ◽  
Unrealistic Assumption ◽  
Frequency Diverse Array

In this paper, the concept and recent development of exploiting frequency diverse array (FDA) and its variants for the physical-layer wireless security have been revisited and carefully examined. Following rigorous analytical derivation and illustrative simulations, the authors argue that the investigations performed in some recent works did not reveal one critical issue facing the real-world applications, and system models established and used before were based on an unrealistic assumption, i.e. that the legitimate and eavesdropping users at different ranges sample the signal waveforms at the same time instant. This misunderstanding results in conclusions that are misleading. The authors aim to take the first step to divert research efforts and rectify the previous problematic analyses. The authors prove that the FDA cannot secure a free-space wireless transmission in range domain, because the previously claimed ‘secure reception region’ propagates in range domain as time elapses.

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