Papers by Keyword: RFID

Abstract: Nowadays the vehicle networking technology which is to solve the transportation problems such as traffic safety, efficiency, environment, has gained tremendous progress. This paper introduces the basic concept of vehicle networking, then gives a comparison of development of vehicle networking at home and abroad, also takes a look into industry pace, industry development situation and scale of the domestic and foreign vehicle networking, prospects the future and trend of vehicle networking and puts forward some suggestions for the development the vehicle networking industry.

Abstract: This paper presents a collision algorithm based on frame slots RFID tag identification and prevention, algorithms on performance is more stable, less total cost of the number of time slots. For the anti-collision algorithm for the simulation, the average number of searches were simulated contrast of the number of tags and the number of slots and different algorithms collision situations relations, research results show that this type of algorithm is effective in reducing the identification number of the reader's request to reduce the energy consumed by the reader, particularly suitable for applications in handheld reader today.

Abstract: Improving the efficiency of RFID data storage and ensuring communication security is an effective way to improve the efficiency and safety of the identifying and authenticating process between charging stations and electric vehicles. Considering structure of electric vehicle charging station (EVCS) and the components of RFID system, this paper presents a charging station security authentication system model based on lightweight RFID security protocol using hybrid encryption technology. This protocol participates in the computation and storage through a reader-writer, so that it can store more data than other protocols using the same storage, meanwhile keeping lightweight. To enhance security, a hybrid encryption for RFID is proposed, which is based on public key signature encryption algorithm, hash function and symmetric key algorithm. Analysis demonstrates that this system has great calculating storage performance and security. In addition, it has the ability to resist several typical attacks. Moreover, gate circuits needed to achieve such encryption algorithm is far less than the one used in conventional SHA-256 algorithm.

Abstract: This paper deals with securing radioactive source by continuously monitoring system, which is made of RFID (Radio Frequency Identification) reader and tags respectively. The RFID tags that are attached to the transport packages can send information at preset interval, to reader mounted in the cargo bay of the transport vehicle. When an alarm state is encountered by any of the sensors in the tag, the location information of the item using GPS is promptly sent to the monitoring center via the GPRS network. The experiments show that the real-time tracking system is an important prerequisite for ensuring safety of radioactive source in transport.

Abstract: The article focused on tropical agricultural products and summarized the electronic information elements. RFID was used as information carrier. The research explored the smart identification method realization technologies for the internet of things of tropical agriculture. In the research, we set up a base information database platform of tropical agricultural products and realized the smart tag’s reading and writing operation. The smart identification of electronic information system based on RFID is designed. The system can realize functions of RFID code automatically generating and improving the tag read rate.

Abstract: In RFID system, when multiple tags transmit information in the same wireless channel simultaneously, data collisions usually occur which will reduce the identifying efficiency of RFID systems. To resolve this problem, several Dynamic Frame-Slotted ALOHA (DFSA) methods have been proposed. However, these methods are generally not capable of achieving expected performance when the number of tags is much larger or smaller than the initial frame size. Aiming to this problem, a Rapid DFSAI (RDFSAI) method was put forward based on the DFSA with interrupt (DFSAI) in this paper. Firstly, whether the frame size is adjusted or not is judged by comparing the system efficiency with the reference system efficiency. Secondly, the multiple factor of the frame size is determined by the ratio between the collision and empty slots, which leads to a seriels of different multiple factors or. As a result, the proposed RDFSAI elevates the adjustment speed of frame size and reduces the unnecessary empty and collision slots effectively. Simulation results indicate that the RDFSAI method appears better performance than the conventional methods even the tag number is increased up to 1600.

Abstract: Zigbee technology and RFID technology are combined to design the system that can do real-time positioning and tracking on foreign visitors. The system locates and identifies the visitors who wear RFID card via locater and the locater transmits the ID information of RFID card and position information to the coordinator through Zigbee network and then the coordinator will pass the data after redundancy processing to the monitoring center via Ethernet. This system has advantages in low power consumption, wide deployment range, stable signal transmission and good recognization ability and it is applicable to important places such as high-grade residential area, park, warehouse and research institute, etc.

Abstract: In view of current network RFID reader, a solution is given based on LWIP and FreeRTOS in this paper. FreeRTOS is chosen as its operating system . LWIP is chosen as its network protocol, which can upload the RFID card number to the server as soon as getting the new RFID card number. LWIP and FreeRTOS are free and open source code so that we need not consider the use of copyright issues.Also,STM32F107VC based on the framework of Cortex-M3 is selected as the RFID reader processor and DP83848 chip produced by TI is used as the network card in the hardware solution.

Abstract: With the rapid growth of China's economy, and the gradually improvement of the people's living standard, the car has become an indispensable means of transportation in our lives, and its number is increasing. So, the demand for the quality and scale is also growing. In order to meet the needs of daily parking management, this paper designed a kind of efficient embedded parking lot management system based on RFID. The system takes the Micro2440 embedded development board as the hardware platform and the Linux operating system as the software platform. It can gather vehicle information from RFID electronic tag cyclically to control the switch of the gate and broadcast the received information. After running and testing, the system has completed the initial design goals stable, and the operation is very. It has a certain application value.

Abstract: With the development of the Internet of Things (IOT), its application in the field of health care has become more and more widely. Based on the introduction of the IOT system architecture, key technology and existing problems and the three layer general framework, combined with the actual characteristics of the hospital, an IOT-based medical equipment management system architecture, and application of Internet technology, sensing technology, communication technology and software information technology, analyzes the related key technologies of building in, including intelligent gateway, middleware, information management platform etc. in order to achieve intensive, digital and informatized medical equipment management mode.