Relying on CMPP (China Mobile Peer to Peer) protocol,we propose and design SMS (Short Message Service) gateway interface for early warning plan based on real-time meteorological database application,in order to form t...Relying on CMPP (China Mobile Peer to Peer) protocol,we propose and design SMS (Short Message Service) gateway interface for early warning plan based on real-time meteorological database application,in order to form the meteorological mobile internet service system which is 'One point connect,service the whole province' for short.Accessing interface system to each city's SMG (Short Message Gateway) through standard protocol,we establish the information transmitting channel of short message platform and mobile SMG to realize the store-forward and flow control of short message.In addition,the stable and dependable communication connect of interface system and mobile SMG should be ensure,and the connect could be reconstructed while encountering any error,as well as committing short message would be stopped due to interruption of connect.展开更多
Brain computer interface(BCI)systems permit individuals with motor disorders to utilize their thoughts as a mean to control external devices.BCI is a promising interdisciplinary field that gained the attention of many...Brain computer interface(BCI)systems permit individuals with motor disorders to utilize their thoughts as a mean to control external devices.BCI is a promising interdisciplinary field that gained the attention of many researchers.Yet,the development of BCI systems is facing several challenges,such as network lifetime.The Medium Access Control(MAC)Protocol is the bottle-neck of network reliability.There are many MAC protocols that can be utilized for dependable transmission in BCI applications by altering their control parameters.However,modifying these parameters is another source of concern due to the scarcity in knowledge about the effect of modification.Also,there is still no instrument that can receive and actualize these parameters on transmitters embedded inside the cerebrum.In this paper,we propose two novel MAC protocols using passive UHF-RFID,the proposed protocols provide efficient and reliable communication between the transmitters and the receiver.The UHF-RFID transmitters were used because they are energy efficient which makes them compatible with BCI application.The first protocol is designed for the EEG signals.While the second protocol was designed for the ECoG signals.The evaluation results showed the validity of the proposed protocols in terms of network performance.The results also proved that the protocols are suitable and reliable for designing efficient BCI applications.展开更多
This paper presents a multi-interface embedded server architecture for remote real-time monitoring system and distributed monitoring applications. In the scheme,an embedded microprocessor( LPC3250 from NXP) is chosen ...This paper presents a multi-interface embedded server architecture for remote real-time monitoring system and distributed monitoring applications. In the scheme,an embedded microprocessor( LPC3250 from NXP) is chosen as the CPU of the embedded server with a linux operation system( OS) environment. The embedded server provides multiple interfaces for supporting various application scenarios. The whole network is based on local area network and adopts the Browser / Server( B / S) model. The monitoring and control node is as a browser endpoint and the remote node with an embedded server is as a server endpoint. Users can easily acquire various sensors information through writing Internet protocol address of remote node on the computer browser. Compared with client / server( C / S) mode,B / S model needs less maintain and can be applicable to large user group. In addition,a simple network management protocol( SNMP) is used for management of devices in Internet protocol( IP) networks. The results of the demonstration experiment show that the proposed system gives good support to manage the network from different user terminals and allows the users to better interact with the ambient environment.展开更多
在广播电视行业,4K、8K超高清技术的快速发展,对于信号传输产生了更高的要求,需要更高的带宽和更低的延迟。在这种情况下,传统的串行数字接口(Serial Digital Interface,SDI)技术已经不能满足,需要向网际互连协议(Internet Protocol,IP...在广播电视行业,4K、8K超高清技术的快速发展,对于信号传输产生了更高的要求,需要更高的带宽和更低的延迟。在这种情况下,传统的串行数字接口(Serial Digital Interface,SDI)技术已经不能满足,需要向网际互连协议(Internet Protocol,IP)化转化。针对SDI技术的局限性以及IP技术的优势进行阐述,发现IP化不仅可以提升传输效率、降低传输成本,还可以促进广播电视行业的创新和发展。展开更多
随着基于电影和电视工程师协会(The Society of Motion Picture and Television Engineers,SMPTE)ST 2110标准的网际互连协议(Internet Protocol,IP)化电视系统越来越多,传统串行数字接口(Serial Digital Interface,SDI)架构电视系统测...随着基于电影和电视工程师协会(The Society of Motion Picture and Television Engineers,SMPTE)ST 2110标准的网际互连协议(Internet Protocol,IP)化电视系统越来越多,传统串行数字接口(Serial Digital Interface,SDI)架构电视系统测量方法在IP化电视系统中已不再适用。对此,详细介绍IP测量与SDI测量的区别与联系,以及IP架构电视系统测量的内容、方法及相关指标,以期在IP化电视系统出现问题时,能够通过相关测量,快速定位、解决系统故障。展开更多
近年来,广播电视技术转型向网际互连协议(Internet Protocol,IP)化发展的进程逐渐加快,基于IP架构的电视技术系统必将取代传统串行数字接口(Serial Digital Interface,SDI)架构,成为未来电视技术的发展方向。对以互联网协议网关(Interne...近年来,广播电视技术转型向网际互连协议(Internet Protocol,IP)化发展的进程逐渐加快,基于IP架构的电视技术系统必将取代传统串行数字接口(Serial Digital Interface,SDI)架构,成为未来电视技术的发展方向。对以互联网协议网关(Internet Protocol Gateway,IPG)作为关键设备搭建“SDI+IP”混合架构系统的设计方案进行深入分析,阐述电视技术系统从SDI向IP技术转型过程中尽可能实现平稳过渡的思路。展开更多
文摘Relying on CMPP (China Mobile Peer to Peer) protocol,we propose and design SMS (Short Message Service) gateway interface for early warning plan based on real-time meteorological database application,in order to form the meteorological mobile internet service system which is 'One point connect,service the whole province' for short.Accessing interface system to each city's SMG (Short Message Gateway) through standard protocol,we establish the information transmitting channel of short message platform and mobile SMG to realize the store-forward and flow control of short message.In addition,the stable and dependable communication connect of interface system and mobile SMG should be ensure,and the connect could be reconstructed while encountering any error,as well as committing short message would be stopped due to interruption of connect.
文摘Brain computer interface(BCI)systems permit individuals with motor disorders to utilize their thoughts as a mean to control external devices.BCI is a promising interdisciplinary field that gained the attention of many researchers.Yet,the development of BCI systems is facing several challenges,such as network lifetime.The Medium Access Control(MAC)Protocol is the bottle-neck of network reliability.There are many MAC protocols that can be utilized for dependable transmission in BCI applications by altering their control parameters.However,modifying these parameters is another source of concern due to the scarcity in knowledge about the effect of modification.Also,there is still no instrument that can receive and actualize these parameters on transmitters embedded inside the cerebrum.In this paper,we propose two novel MAC protocols using passive UHF-RFID,the proposed protocols provide efficient and reliable communication between the transmitters and the receiver.The UHF-RFID transmitters were used because they are energy efficient which makes them compatible with BCI application.The first protocol is designed for the EEG signals.While the second protocol was designed for the ECoG signals.The evaluation results showed the validity of the proposed protocols in terms of network performance.The results also proved that the protocols are suitable and reliable for designing efficient BCI applications.
基金Sponsored by the National High Technology Research and Development Program(Grant No.2012AA02A604)
文摘This paper presents a multi-interface embedded server architecture for remote real-time monitoring system and distributed monitoring applications. In the scheme,an embedded microprocessor( LPC3250 from NXP) is chosen as the CPU of the embedded server with a linux operation system( OS) environment. The embedded server provides multiple interfaces for supporting various application scenarios. The whole network is based on local area network and adopts the Browser / Server( B / S) model. The monitoring and control node is as a browser endpoint and the remote node with an embedded server is as a server endpoint. Users can easily acquire various sensors information through writing Internet protocol address of remote node on the computer browser. Compared with client / server( C / S) mode,B / S model needs less maintain and can be applicable to large user group. In addition,a simple network management protocol( SNMP) is used for management of devices in Internet protocol( IP) networks. The results of the demonstration experiment show that the proposed system gives good support to manage the network from different user terminals and allows the users to better interact with the ambient environment.
文摘在广播电视行业,4K、8K超高清技术的快速发展,对于信号传输产生了更高的要求,需要更高的带宽和更低的延迟。在这种情况下,传统的串行数字接口(Serial Digital Interface,SDI)技术已经不能满足,需要向网际互连协议(Internet Protocol,IP)化转化。针对SDI技术的局限性以及IP技术的优势进行阐述,发现IP化不仅可以提升传输效率、降低传输成本,还可以促进广播电视行业的创新和发展。
文摘随着基于电影和电视工程师协会(The Society of Motion Picture and Television Engineers,SMPTE)ST 2110标准的网际互连协议(Internet Protocol,IP)化电视系统越来越多,传统串行数字接口(Serial Digital Interface,SDI)架构电视系统测量方法在IP化电视系统中已不再适用。对此,详细介绍IP测量与SDI测量的区别与联系,以及IP架构电视系统测量的内容、方法及相关指标,以期在IP化电视系统出现问题时,能够通过相关测量,快速定位、解决系统故障。
