The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
����ince the trend of concentration to the urban population is more and more obvious, the architecture design in the city are more complicated. In a complex design environment, when the fire occurs, although the building has evacuation guidance signs to guide personnel to escape, the guidance effect will vary considerably due to the difference in fire points and the correct indication of the static...
The distributed trigger counting (DTC) problem is a fundamental block for many distributed applications. Particularly, such a problem is to raise an alert while the number of triggers received by the whole system reaches a pre‐defined amount. There have been a few algorithms proposed to solve the DTC problem in the literature. However, these existing algorithms are all under the assumption that each...
Nowadays, in case of an emergency, and because of the more complicated interiors of buildings, people may not be able to easily find a safe escape route within limited time. An immediately available evacuation guide can improve safety in public buildings. In this research paper, we propose an intelligent guidance system that is a combination of image recognition and Digital Signage for conducting...
The Distributed Trigger Counting (DTC) problem is o raise an alert while the number of riggers received by the whole system reaches a pre-defined amount. There have been several algorithms proposed to solve such a problem in the literature. However, these existing algorithms are all under the assumption that here is no even regarding process moving, leaving and joining in the network. In his paper,...
A crystal-less FSK wireless transceiver is proposed for next-generation intelligent intensive care unit (ICU) healthcare systems. The transceiver delivers bidirectional data of the bio-signal collected from a patient and control signal from a centralized station. It features crystal-less design and direct frequency-shift-keying (FSK) modulation and demodulation at 1.4 GHz for low power consumption...
The distributed trigger counting (DTC) problem is to raise an alert while the number of triggers received by the system reaches a pre-specified amount. Particularly, there have been several algorithms proposed to solve the DTC problem in the literature. However, these existing algorithms are all under the assumption that each node knows what kind of topology the whole system is as well as what kind...
In this paper, we design and implement an advanced FPGA (Field-Programmable Gate Array)-based sensor gateway for wireless multimedia sensor networks. We propose a gateway architecture termed “Heterogeneous Gateway”, which provides multiple interfaces to PSTN, GSM, CDMA, Internet, and so on, for supporting various application scenarios. Meanwhile, the gateway accesses to PSTN (Public Switched Telephone...
For self-organized networks that possess highly decentralized and self-organized natures, neither the identity nor the number of processes is known to all participants at the beginning of the computation because no central authority exists to initialize each participant with some context information. Hence, consensus, which is essential to solving the agreement problem, in such networks cannot be...
A packaged wireless multisensor module has been developed and used for monitoring variations of temperature and humidity in reinforced concrete (RC). The multisensor (Sensirion, SHT 75) integrated a microprocessor control unit (MCU) and radio frequency integrated circuits (RFIC) for wireless signal transmission was packaged using poly(methyl methacrylate) (PMMA) to protect the module for avoiding...
With the advance of semiconductor and wireless communications technologies in recent years, the systems of highly integrated high-speed digital circuits and multi-radio modules have paved the way to mobile communications and networking. While notebook computers become more and more powerful in all respects, many RF modules such as Wi-Fi, Bluetooth, WWAN with GSM and WCDMA have been put together inside...
In this paper, an energy efficient MAC protocol based on the finite projective plane (FPP) theory is proposed. Our protocol introduces an adaptive energy-efficient duty cycle for the sensor nodes to reduce the idle listening problem. By assigning each node with an FPP-set, we propose to decrease wake-up time and to determine the sleep or wake-up schedules based on the existing number of neighbors...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.