Low power and low cost tide gauge sensor node using a long distance communication technology -MAD-SS-

2014 ◽  
Author(s):  
Norihisa Segawa ◽  
Jun Sawamoto ◽  
Masaaki Gokan ◽  
Masato Yazawa
Keyword(s):  
Low Power ◽  
Communication Technology ◽  
Sensor Node ◽  
Tide Gauge ◽  
Low Cost ◽  
Long Distance ◽  
Distance Communication

scholarly journals Accurate Indoor Sound Level Measurement on a Low-Power and Low-Cost Wireless Sensor Node

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2351 ◽  
Author(s):  
Vladimir Risojević ◽  
Robert Rozman ◽  
Ratko Pilipović ◽  
Rok Češnovar ◽  
Patricio Bulić
Keyword(s):  
Low Power ◽  
Sensor Node ◽  
Ambient Noise ◽  
Ieee 802.15.4 ◽  
Low Cost ◽  
Sound Level ◽  
Wireless Sensor ◽  
Sound Level Meter ◽  
Hardware Platform ◽  
Level Meter

Wireless sensor networks can provide a cheap and flexible infrastructure to support the measurement of noise pollution. However, the processing of the gathered data is challenging to implement on resource-constrained nodes, because each node has its own limited power supply, low-performance and low-power micro-controller unit and other limited processing resources, as well as limited amount of memory. We propose a sensor node for monitoring of indoor ambient noise. The sensor node is based on a hardware platform with limited computational resources and utilizes several simplifications to approximate more complex and costly signal processing stage. Furthermore, to reduce the communication between the sensor node and a sink node, as well as the power consumed by the IEEE 802.15.4 (ZigBee) transceiver, we perform digital A-weighting filtering and non-calibrated calculation of the sound pressure level on the node. According to experimental results, the proposed sound level meter can accurately measure the noise levels of up to 100 dB, with the mean difference of less than 2 dB compared to Class 1 sound level meter. The proposed device can continuously monitor indoor noise for several days. Despite the limitations of the used hardware platform, the presented node is a promising low-cost and low-power solution for indoor ambient noise monitoring.

scholarly journals Strategies for Deploying a Sensor Network to Explore Planetary Lava Tubes

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6203
Author(s):  
Himangshu Kalita ◽  
Jekan Thangavelautham
Keyword(s):  
Low Cost ◽  
Line Of Sight ◽  
Communication Link ◽  
Wireless Power ◽  
Lava Tube ◽  
Long Distance ◽  
Lava Tubes ◽  
Distance Communication ◽  
High Resolution Images ◽  
Exploration Mission

Recently discovered pits on the surface of the Moon and Mars are theorized to be remnants of lava tubes, and their interior may be in pristine condition. Current landers and rovers are unable to access these areas of high interest. However, multiple small, low-cost robots that can utilize unconventional mobility through ballistic hopping can work as a team to explore these environments. In this work, we propose strategies for exploring these newly discovered Lunar and Martian pits with the help of a mother-daughter architecture for exploration. In this architecture, a highly capable rover or lander would tactically deploy several spherical robots (SphereX) that would hop into the rugged pit environments without risking the rover or lander. The SphereX robots would operate autonomously and perform science tasks, such as getting inside the pit entrance, obtaining high-resolution images, and generating 3D maps of the environment. The SphereX robot utilizes the rover or lander’s resources, including the power to recharge and a long-distance communication link to Earth. Multiple SphereX robots would be placed along the theorized caves/lava tube to maintain a direct line-of-sight connection link from the rover/lander to the team of robots inside. This direct line-of-sight connection link can be used for multi-hop communication and wireless power transfer to sustain the exploration mission for longer durations and even lay a foundation for future high-risk missions.

LoRaWAN for an IoT-based environmental monitoring application in Tirana city

2021 ◽  
Author(s):  
Evjola Spaho ◽  
Aleksandër Biberaj ◽  
Ares Tahiraga
Keyword(s):  
Low Power ◽  
Environmental Monitoring ◽  
Long Range ◽  
Low Cost ◽  
Wide Area ◽  
Wide Area Networks ◽  
Area Network ◽  
Wide Area Network ◽  
Long Distance ◽  
Monitoring Application

AbstractRecently, low power wide area networks are attracting a lot of attention by the research community. They are wireless technologies characterized by large coverage area, low bandwidth and long battery life. One of these low power wide area networks technologies, the long range wide area network, can be used for different monitoring applications for health, agriculture, traffic, smart city.In this paper, different simulations and experiments are conducted to implement a low-cost long-range wide area network environmental monitoring application for Tirana city in Albania. Simulation and experimental data are compared and similar results were obtained. In the low-cost implemented system, the gateway can communicate with the sensors placed in strategic positions with long distance covered also using Radio Mobile software.

Research of Zero-Cross Modulation Technology

2010 ◽  
Vol 40-41 ◽  
pp. 473-477
Author(s):  
Yong Li Chu ◽  
Yong Li Chen
Keyword(s):  
Communication Technology ◽  
Signal Transmission ◽  
Distribution Network ◽  
Signal Frequency ◽  
Fundamental Wave ◽  
Long Distance ◽  
Cross Modulation ◽  
Power Line Carrier Communication ◽  
Distance Communication ◽  
Modulation Signal

The zero-cross modulation technology is a communication technology for distribution network, different from the traditional distribution network power line carrier communication technology. Its basic principle is to use the TWACS of the power frequency voltage fundamental wave to realize the signal transmission, and the modulation signal frequency is low It can be long-distance communication across the transformer. The data reliability and data through rate are high. It has broad application prospects in real-time communication less demanding situations. This paper first introduces the principle of the zero-cross modulation technology, and then details the generation and the identification of the voltage modulation signal. Practice shows that the transmission success rate of zero-cross modulation signal is up to100%. Meet the actual needs.

scholarly journals A proposal of low-cost and low-power embedded wireless image sensor node for IoT applications

2018 ◽  
Vol 134 ◽  
pp. 99-106 ◽  
Author(s):  
M. Tresanchez ◽  
A. Pujol ◽  
T. Pallejà ◽  
D. Martínez ◽  
E. Clotet ◽  
...  
Keyword(s):  
Low Power ◽  
Sensor Node ◽  
Low Cost ◽  
Image Sensor ◽  
Iot Applications

The Design of a Voice Control System for Smart House

2014 ◽  
Vol 644-650 ◽  
pp. 741-745
Author(s):  
Wei Zhang ◽  
Yu Huai Liu
Keyword(s):  
Control System ◽  
Power Consumption ◽  
Low Power ◽  
Wireless Network ◽  
Sensor Node ◽  
Low Cost ◽  
Low Power Consumption ◽  
Zigbee Technology ◽  
Voice Control ◽  
Smart House

A method to design a voice control system for smart house is proposed and implemented. Since smart house has the characteristics of low power consumption, low cost and easy operability, ZigBee technology is adopted as a wireless network standard and CC2530 is selected as a sensor node. In the designed system, electric appliances can be controlled by voice.

Design and Implementation of Electronic Bus Stop Boards System Based on Wireless Communication Module

2014 ◽  
Vol 651-653 ◽  
pp. 2441-2444
Author(s):  
Cai Rong Zhang ◽  
Guo Liang Liu ◽  
Bin Wei
Keyword(s):  
Wireless Communication ◽  
Short Range ◽  
High Reliability ◽  
Low Cost ◽  
Long Distance ◽  
Current Time ◽  
Bus Stop ◽  
Passenger Travel ◽  
Communication Module ◽  
Distance Communication

To the convenience of passenger travel, a kind of electronic bus stop boards system is discussed in this paper, which can be considered as intelligent equipment based on wireless communication technology. The combination between short-range wireless and long-distance communication module, together with the microcontroller composes the electronic bus stop boards system. The electronic bus stop boards system indicates the number of stations away from passengers’ station board on different nearest buses, current time and real-time humiture. The test results showed that the system could realize short-range and long-distance communication function and display the necessary information. With the advantages of high reliability and efficiency at low cost, the electronic bus stop boards system has more practical popularized value to replace traditional intelligent station boards with GPS and GPRS by cheap wireless communication module.

scholarly journals Towards an ultra-low-power low-cost wireless visual sensor node for fine-grain detection of forest fires

2014 ◽  
pp. 1571-1581
Author(s):  
J. Fernández-Berni ◽  
R. Carmona-Galán ◽  
Juan A. Leñero-Bardallo ◽  
R. Kleihorst ◽  
Á. Rodríguez-Vázquez
Keyword(s):  
Low Power ◽  
Forest Fires ◽  
Sensor Node ◽  
Low Cost ◽  
Visual Sensor ◽  
Ultra Low Power ◽  
Fine Grain

Comparison and Analysis of ONU Sleep Mechanism Based on OPNET for Green Fiber-Wireless Access Network

2014 ◽  
Vol 700 ◽  
pp. 181-184
Author(s):  
Xu Zhang ◽  
Peng Chao Han ◽  
Yin Peng Yu ◽  
Yu Fang Zhou ◽  
Ya Min Xie
Keyword(s):  
Energy Consumption ◽  
Low Power ◽  
Low Cost ◽  
Optical Network ◽  
Access Network ◽  
High Capacity ◽  
Passive Optical Network ◽  
Sleep State ◽  
Long Distance ◽  
Save Energy

As one of promising "last mile" scheme for broadband access network, Fiber-Wireless (FiWi) access network has the advantages of high capacity, long distance, low cost etc because it is the integration of optical back-end and wireless front-end. At the same time, energy consumption of FiWi access network is an important factor that limits the development of networks. A number of ONU sleep states such as ONU power shedding state, ONU doze state, ONU deep sleep state and ONU fast sleep state have been proposed to obtain low-power ONU state, which indirectly reduce energy consumption of networks. However, these low-power states of ONU are born to coordinate to green Passive Optical Network (PON), of which the function of ONU is different from FiWi. In this paper, two low power ONU sleep mechanisms called Static ONU Sleep (SOS) mechanism and Dynamic ONU Sleep (DOS) mechanism, respectively, are proposed and embedded into FiWi access network. By simulation and analysis based on OPNET 14.5, this paper shows that the DOS mechanism has a better performance than SOS, and both of them can save energy of FiWi access network.

Research on Wells Monitoring Background Management Software Based on Labview

2013 ◽  
Vol 760-762 ◽  
pp. 836-840
Author(s):  
Ting Xu ◽  
Wen Bing Lu ◽  
Miao Xin Zhang
Keyword(s):  
Data Collection ◽  
Communication Technology ◽  
Low Cost ◽  
Long Distance ◽  
Management Software ◽  
Remote Areas ◽  
Blind Area ◽  
Power Frequency ◽  
Collection And Management ◽  
Transmission Information

Well monitoring system based on power line transmission information has low cost, can realize to span transformers through the area of long distance, as well as in remote areas does not exist blind area, the paper designs a kind of wells monitoring background management software based on the Labview. Due to the characteristics of well monitoring and power frequency communication technology, the labview reaches not only the data management, but also realizes to collect data for simulation and analysis of the channel. Wells monitoring background software based on labview not only realize data collection and management, but also realize the system equipment monitoring and debugging.

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