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.
Our project team developed the experience learning history acquisition system which can record the actions and behaviors of learners to determine their comprehension and learning process in the experience learning. This system uses iPhone, a mobile terminal with various sensors as the terminal to record the behaviors learners. To measure the effect of the system, we conducted experiments in the Workshop...
Anti-Collision algorithm based on probability can be used to estimate the number of frame slots needed at the next query round in tag identification of RFID. Each tag is equipped with a random counter to save the number that is relevant to whether the tag responds the query of reader or not. For this specific anti-collision algorithm, estimating the number of tags is the most important step in the...
In distance education, students in a remote classroom tend not to sustain their motivation, mainly because of a lack of intensity due to non-physical presence of a lecturer. To address this issue, two software tools were developed for teachers and students, respectively. The tool for teachers is called eRoster. On the teacher's PC, the eRoster can display not only the student's name but also the student's...
Existing e-learning courses are designed to guide users acquire information or to help users undertake specific tasks. User is expected to increase proficiency about the context via the stationary computer. However, such design cannot allow multiple users to access the system simultaneously, thus leading inefficiency and lack of expandability. A framework to support M-learning in RFID system is therefore...
We propose a mobile directory service explicitly devised for pervasive RFID contexts. The registry adopts an OWL-S 1.1 Profile instance annotation of mobile services and resources. Ontology-based metadata are exploited in order to perform a semantic-based service discovery with respect to a given request. A case study to support logistics in RFID environments is presented along with experimental results...
With the wide adoption of radio frequency identification (RFID) system, one of important issues is the anti-collision problem. This means that the reader should be identified all tags within the same range, efficiently, fast. Generally, the tree-based protocols should make the unique ID from the request from the reader and the response from tags. In the result, the traditional methods need the number...
A radio frequency identification (RFID) is an important part in mobile and ubiquitous domain, and brings enormous productivity benefits in applications where objects require automatic identification. However, this pervasive use of RFID tags opens up the possibility of various attacks that violate user privacy and authentication. Security mechanisms for RFID systems are therefore of the utmost important...
This paper analyses the problems deal with the mobile commerce and enterprise information, discusses the key technology and technology the road map of enterprise information.
The RFID (radio frequency identification) is a technology that automatically identifies objects containing the electronic tags by using radio frequency. In RFID system, the reader needs the anti collision algorithm for fast identifying all of the tags in the interrogation zone. This paper proposes the tree based anti collision algorithm using parity bit (ACPB) to arbitrate the tag collision. The proposed...
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.