LwIP Protocol Stack Research Articles

Smart Grid System Architecture over Embedded System using Internet of Things

This paper refers advanced smart Grid architecture executed with the help of internet of things. Internet of things contains a set for Web administrations have highest priority over internet enabled embedded devices. The Web program on computer could go an interface over service provided by this web of things. Those Embedded devices such as ARM Cortex M3 Processor built gadgets with Ethernet abilities. CMSIS Real time embedded systems will be utilized to transform control on each on these electronic gadgets. LwIP Protocol stack may be actualized on highest priority on each of these units along with the IP connectivity. Those Web interfaces gatherings give us constant majority of the data for each of the energy meters that are introduced with respect to webpage and communicate with web units utilizing MODBUS correspondence protocol. Constant real time energy source scheduling and selection, energy association and separation are some of the administrations that would be given with a on-line verifed client. The inserted embedded systems lab framework at the TIFAC center to 3G/4G correspondence toward national institute of science and technology might have been utilized for that equipment testing of the embedded modules. We were mostly helped by the product developers during NIST innovation consultancy administrations over outlining those web provisions and also interface for our Web of things construction modeling.

Design and Implementation of ZigBee Gateway for Ethernet

WSN (Wireless sensor network) using ZigBee has aroused people’s high interest, ZigBee is considered to be a general solution in many fields such as intelligent household, industrial application, security monitoring and medical application. But wireless sensor network can only provide service within a certain range, in order to overcome this limitation and provide remote application capacity, this paper proposes a technological solutions for the interconnection of ZigBee network and the Ethernet, develops a ZigBee gateway based on ARM platform. Based on the analysis of the ZigBee protocol stack and TCP/IP protocol stack, the protocol conversion mechanism of ZigBee and TCP/IP is presented. Through transplantation LwIP protocol stack, this paper achieves the goal of connecting gateway to Internet, and finally realizes the conversion from ZigBee network to TCP/IP network.

Design of Smart Hotel Lighting Control System Based on ARM

The smart hotel lighting control system is the essential feature of every hotel in the future. In order to improve the performance of the system and make it easy to unified manage a large number of rooms, a design of smart hotel lighting control system based on ARM is put forward. The system uses STM32F107 which is an ARM chip based on the Cortex-M3 architecture as the main controller. The system can use switchs to control lighting, it also transplants LwIP protocol stack to achieve Ethernet remote management. This paper will make a detailed introduction of the system through both hardware and software aspects.

Smart Home Design Based on Wireless Transmission Technology

In this article, a design of smart home control system which based on wireless transmission technology was presented. Through WIFI and 3G technology, users can monitor the equipments of their homes in everywhere. With WIFI’s ADHOC characteristics, equipments can be added or reduced easily. The high data transmission speed capability of WIFI and 3G makes the video monitor become possible. Both UDP and TCP protocol are used, thereinto, the UDP protocol is used to transmit video data, while the TCP protocol is used to transmit the data with security requirements. In order to save cost, Lwip protocol stack have been used to implement the requirements of this design.

The Implementation of IEEE 1588-2008 Precision Time Protocol on the STM32F107

High precision clock synchronization is the basis for all applications in network-based distributed motion control system. To solve this problem, the clock synchronization principle is analysed; the initialization process of STM32F107VC PTP(Precision Time Protocol) hardware unit is introduced, and the process of capturing time stamp by PTP hardware unit, as well as clock adjustment mechanism, is in-depth dissected. PTPd v2 clock synchronization is realized in STM32F107VC platform supported by LwIP protocol stack. The results indicate that it is able to achieve an accuracy of less than 260ns clock synchronization based on STM32F107VC PTP hardware unit.

Study of Remote Control of Non-OS Embedded Instrument Based on LXI Bus Technology

A scheme is proposed to realize remote control of embedded instrument without operation system under the mode of B/S structure in view of its self-limitation. Advanced LXI bus technology is usually employed to replace the traditional bus technologies, by which the remote network control can be realized. Due to its, small resource characteristics of embedded instrument, LwIP protocol stack is transplanted into the instrument for realization of the simple TCP/IP protocol function, Web server function is applied to the instrument. The method takes existing low-end instrument as a foundation, combines CGI with the embedded instrument for interactive operation and finally realizes the remote control of embedded instrument through LAN interface.