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The development of mobile internet and semiconductor technology making the people getting strong demand for the home life of the network, intelligence and energy saving. Now a days, energy saving is becoming more vital role as the energy conservation and environmental protection are taking more and more attentions. We can detect environmental condition through intelligent control using Wireless Sensor...
This paper focuses on the implementation of a modified lightweight version of the MODBUS protocol optimized for wireless sensor networks. Here, the master and slave arrangement is made wireless using low cost and multi-featured RF modules (nRF24L01P). The modified MODBUS Packet Data Unit is sent in the data frame of the nRF24L01P. As part of the implementation in this paper the nRF24L01P's feature...
In the future Internet of Things, many common household devices will have communications interfaces added. We investigate energy-efficient design options for such communications interfaces in the Internet of Things through the example of a simple stock control application that may be commercially implemented. We have measured the power consumption of several popular wireless interfaces - 433 MHz module...
Today, coal mines are very dangerous work places and accidents can still occur. In such situations, remote monitoring of the health conditions of miners can better aid search-and-rescue efforts after accidents. In this context, the use of wireless sensor networks can be highly advantageous. In this work, the development of a coal mine safety system based on ZigBee technology is described.
Wireless Sensor Networks (WSNs) consist of multiple unassisted embedded devices which process and transmit data collected from different on-board physical sensors (temperature, humidity, pressure, etc.,). There are several applications in WSN such as agriculture, industrial monitoring, etc.,. In agriculture, plant diseases are regularly monitored by WSN. This survey paper explains about the existing...
Researchers throughout the years have been searching for methods to improve the available technologies to ease the users worldwide. In medical industries, researchers have made many improvements and development in medical equipment's to ease the medical professionals in serving patients. This work is the continuation of the previous research work in providing complete set of data for analysis on human...
In this paper, we develop the base-station platform for in-vehicle wireless sensor network system. The base-station platform is a component of in-vehicle wireless sensor network system which includes wireless sensor nodes platforms, an OBD (On-Board Diagnostics) module, and a user device (e.g., smart-phone, head-unit, and navigation). The in-vehicle wireless sensor network system applies wireless...
Vibration analysis provides relevant information about abnormal working condition of machine parts. Vibration measurement is prerequisite for vibration analysis which is used for condition monitoring of machinery. Also, wireless vibration monitoring has many advantages over wired monitoring. This Paper presents, implementation of a reliable and low cost wireless vibration monitoring system. Vibration...
The low-power wireless data acquisition and transmission system based on ZigBee is designed.The main work include the following aspects: 1)The circuit design and the software design of the system. 2)The multi-channel sensor data acquisition interface and the software of the system design. 3)Low-power design method for the node software. 4)The system based on ZigBee is build and debugged. The results...
This paper presents a wireless biosignal acquisition system-on-a-chip (WBSA-SoC) specialized for electrocardiogram (ECG) monitoring. The proposed system consists of three subsystems, namely, 1) the ECG acquisition node, 2) the protocol for standard IEEE 802.15.4 ZigBee system, and 3) the RF transmitter circuits. The ZigBee protocol is adopted for wireless communication to achieve high integration,...
According to the present situation of the wireless communication technology in the mine underground, the article makes a compare and analysis of the present of widely use of IrDA, RFID, Bluetooth, UWB and ZigBee etc. Short distance wireless communication, and designs the mine underground personnel positioning system using RFID technology based on the research of transmission characteristics of radio...
Researchers throughout the years have been searching for methods to improve the available technologies to ease the users worldwide. In medical industries, researchers have made many improvements and development in medical equipment's to ease the medical professionals in serving patients. This work is the continuation of the previous research work in providing complete set of data for analysis on human...
Monitoring applications have been deployed throughout the years using either wired or short and long distance wireless technology. The wireless technologies itself have been developing and on increasing trends throughout the years. This study discusses on the comparison on two types of wireless technologies to be deployed in the healthcare industries for monitoring patient's vital signs, which are,...
This paper presents an advanced network system for Wireless Body Area Network (WBAN) using different types of transmission media and wireless technologies to satisfy the needs of WBAN. Based on current research and surveys, this network architecture constitutes an innovative plug and play sensor network for WBAN by using Human Body Communication (HBC), Zigbee and Near Field Communication (NFC).
This paper presents a general firmware for controlling microfluidic operations using wireless communication. The firmware is data driven, thus, offers a great deal of flexibility in design and testing of Electro-wetting on dielectrics (EWOD) chips. The control is executed with the help of structured commands that holds actuation information for each electrode. A serial communication link between the...
This paper presents the design and characterization of an Intelligent Wall Unit (IWU) for use in in-building WLAN applications. The IWU comprises of a pair of patch antennas connected via a wirelessly controlled RF switching circuit. The antennas are placed either side of a semi-shielded wall to allow Wi-Fi signals to be “switched” on or off depending on wireless network traffic. The prototype system...
This work investigates whether a contactless, wireless underwater coupling could be developed for underwater sensor networks. This requires the wireless transmission of power from the sensor hub to the transducer module, and the two-way wireless data communication between hub and transducer. Results from a trial deployment of systems with conventional waterproof couplings show that these are a major...
This paper is intended to guide developers of wireless systems who are puzzled by the vast number of radio configuration parameters and options. We provide experimental data comparing power consumption of Bluetooth Low Energy (BLE), ZigBee and ANT protocols for a cyclic sleep scenario, in which a short-range and low-power wireless sensor node periodically sends a data packet to a remote ‘hub’ with...
Power distribution system is one of the important parts of smart grid. Due to its large scale, only a small part in power distribution system employs optical fiber infrastructure. In this paper, we propose an architecture of hybrid short distance RF and wide band communication. We analyze why these two technologies complementary well in power distribution level. We summarized three short distance...
Nursery sheds have the characteristics of staying closely, quantity, parameter changing slowly, a small amount of data, so the article presents a distributed centralized monitoring system based on a short-range radio transceiver IA4421 chip. The front-end system circuit choose single-chip STC89LE52RC as the control of the core, complete a humidity sensor HS1101, the temperature sensor DS18B20 circuit...
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