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There are increasing preferences to employ wireless communication technologies for high mobility, high scalability and low-cost applications in smart city development. This paper gives a brief synopsis of typical wireless technologies in smart city applications and the comparison analysis between them. The trend for smart city wireless technology is also presented. Examples, for several key applications...
This paper details the mechanical and electronic design of a modular snake robot, the Little Red (LR). 3-D printing technology is applied to shorten the manufacturing cycle. With power, sensing, communication and control electronic circuit integrated, each rotation module is independent and full-featured. Additionally, the control system based on Internet of Things (IoT) is more intelligent. The establishment...
Paper proposes a kind of multiple environmental parameters monitoring system for granary that is based on ZigBee network and takes ARM controller as core. With regard to hardware, monitoring circuits for temperature, humidity, CO2 concentration and grain water content are designed. With regard to control program, fuzzy intelligent algorithm is designed and transplanted to ARM controller. The test...
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...
In order to solve the problem of ECG signal detection, wireless sensor network is designed with ZigBee technology. This article describes the details of the system structure, the design of hardware and software and the communication methods. we can realize wireless detection of human ECG signal through the wireless sensor system. Design the host computer software system based on Qt framework can achieve...
This study shows the violation management system in walking races, which judges whether the correct technique is violated or not. Not only judges but also assistant judges who report the judges about the violation are needed in the management of walking races. In addition, a chief judge has to present the violation information which is gathered in advance near finish lines. Such an operation requires...
Mass repartition onboard lightweight aircraft is a crucial problem as it may generate difficulties for the pilot during the landing phase. Being able for the pilot to land the plane properly is of course an important aspect for safety, but also for structure integrity. So the mass repartition monitoring could avoid hard landing occurrences. Hence, it is interesting to develop a mechatronic system...
Internet of Things (IoT) uses the connection between devices to improve their efficiency and user experience, being the communication one of the main elements for a proper IoT network. This paper presents a review of the most common wired and wireless communication protocols, discusses their characteristics, advantages and disadvantages as well as a comparison study to choose the best bidirectional...
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...
An intelligent wireless sensor network based on ZigBee technology with cognitive function is designed in this study. Sensors collect sensed data, include spectral parameters of 2.4G channels. These data are transmitted to coordinator by RF modules. ARM processor in the coordinator receives data. It gets the information of the idle channel and controls the channel conversion after the operation of...
In this paper, we have discussed the application of Zigbee technology. We have shown that a single remote controlled device can control different devices with different application. The experiment performed by us shows the simulation of zigbee within the range of upto 75 meters. The remote controller uses zigbee to control devices like air-conditioner, lights, automatic curtains, garage-shutters,...
Recent advances in information communication technologies will yield new systems/devices for the visually impaired. To realize such systems/devices, location information is essential, especially for indoor application. This paper proposes an indoor location estimation method that uses cost-effective radio frequency nodes. The proposed method uses received signal strength values to estimate the distance...
Embedded healthcare devices are becoming increasingly popular. A device could use a low-power sensor to send data. These low-power sensors typically use ZigBee wireless signals; however, these signals are easily masked by stronger WiFi signals. If a sensor is sending data at the same time as a WiFi-enabled device, the sensor data is lost and needs to be retransmitted. This causes a loss in efficiency...
Water management is an important issue in economics and environment. Recently, amount of water control system has been proposed and developed. For the type of intelligent water control, the related parameters will be the input of the control system. Hence, there is a need of developing a scalable, flexible and reliable sensor network for related parameters monitoring. To install and replace water...
In order to solve the problems of complicated wiring, difficult maintenance and easy line corrosion in traditional greenhouse monitoring system, a greenhouse intelligent information monitoring system based on wireless sensor network was developed. In which ZigBee wireless sensors were used to collect field environmental parameters, such as indoor temperature, indoor humidity, light intensity, carbon...
By analyzing the interference detection and avoidance technology, we find most detection approaches, only according to received signal strength indicator or packet error rate (PER) judge whether the network is interfered by WiFi, which however is not accurate. Therefore, an interference detection approach based on link quality indication and packet error rate(PER) is presented in this paper, which...
This paper from the existing stm32 gateway, pointed out that the existing design of the lack of monitoring the environment to take pictures. Aiming at this problem, this paper presents a set of design and implementation based on stm32f103zet6 wireless gateway. This paper first gives the gateway hardware design, elaborated its working mechanism. In the software design to give the specific process of...
In wireless communication, heterogeneous technologies such as WiFi, ZigBee and BlueTooth operate in the same ISM band.With the exponential growth in the number of wireless devices, the ISM band becomes more and more crowded. These heterogeneous devices have to compete with each other to access spectrum resources, generating cross-technology interference (CTI). Since CTI may destroy wireless communication,...
Internet of Things (IoT) can provide interconnection of things, which can promote the achievement of the remote human health monitoring. In this paper, a human health monitoring platform is designed and developed under the application framework of body sensor network of IoT. The platform can collect the physical information of user by constructing the human state acquisition system. And then the collected...
Internet of Things extends to the objects and the sensors with computing capability and connectivity and affects all our life domains: technical, social or economic. These components are not usually considered computers, however they allow fetching and exchanging data. This paper presents an approach to implement a smart wearable system based on the AT Mega 32U4 microcontroller, which is capable to...
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