共查询到19条相似文献,搜索用时 125 毫秒
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主要内容是对FSK智能公话用户呼叫使用集团彩铃业务引发的一起故障的分析与处理,并借此提出了集团彩铃业务开放时应充分考虑规避双音多频信号所带来的负面影响,从而避免由此导致的各种疑难故障引发的用户投诉. 相似文献
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随着公用电话市场的开放,公话业务成为各个电信运营商业务和利润增长点,同时也成为竞争的焦点.本文分析了公用电话市场现有状况和若干实现方式的不足,提出用综合智能公话平台优化和拓展公话业务.重点介绍了综合智能公话平台中的FSK信息承载方式. 相似文献
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随着公用电话市场的开放,公话业务成为各个电信运营商业务和利润增长点,同时也成为竞争的焦点。本文分析了公用电话市场现有状况和若干实现方式的不足,提出用综合智能公话平台优化和拓展公话业务。重点介绍了综合智能公话平台中的FSK信息承载方式。 相似文献
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本文设计实现了一种针对数字家庭不同终端、多种业务统一管理的平台,面向省公司提供完善的端到端数字家庭管理功能.主要介绍了平台的系统总体设计,包括了它的功能结构和系统架构.特别是介绍了平台的核心功能设计,主要包括终端管理系统(RMS)、网关插件管理、业务运营管理、软探针——业务质量保障系统和智能家居管理.省级数字家庭管理平台大量投入生产应用,有助于汇聚用户,以用户感知为出发点从而进一步提用户粘性,最终形成差异化竞争的家庭智能生态. 相似文献
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201智能IC公话业务是建立在智能网平台上的一项智能语音业务。相对于传统的离线式公用电话,智能公话有着计费准确,终端话机结构简单、故障少、易维护的特点。系统采用独立接人码,可在智能网平台上定制专用流程,并且易于实现对业务的统一管理。 相似文献
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随着公用电话市场的开放,公话业务成为各个电信运营商业务和利润增长点,同时也成为竞争的焦点。本分析了公用电话市场现有状况和若干实现方式的不足,提出用综合智能公话平台优化和拓展公话业务。重点介绍了综合智能公话平台中的FSK信息承载方式。 相似文献
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本文通过对孤寡老人居家养老服务的分析与研究,设计出一套基于"孤寡老人看护站平台"和"智能呼叫终端"组成的孤寡老人看护系统。通过构建孤寡老人看护站平台,为集中化管理和信息分类处理提供一个高效可靠的后台处理软件。通过对智能呼叫终端的信息接收和处理,完成对不同设备地址管理,终端用户信息,终端呼叫分类处理,处理进度管理等功能的操作。 相似文献
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利用媒体网的电话系统相当于一个机顶盒,留有电话接口和网口,家用电话插上后可以利用MP网拨打电话.在拓扑上处于 Medianet 骨干网与用户的连接处,属于接入网部分.整个系统由电话控制芯片,编解码芯片和FPGA整体控制组成,遵循8 kbyte/s的速率对语音信号采样并在下行用100 M网口(RJ45)与MP设备(M-BOX)连接.基于MP网络的电话系统数据不做存储,而是直接打包成协议格式发送出去保证实时性.由于不使用IP网络,故未采用TCP/IP协议,而用FPGA按MP网专用协议组包.系统测试比对传输前后数据,仿真图正确. 相似文献
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When it was first approved by the CCITT in the 1980 Yellow Book, Signaling System No. 7 was described as "an internationally standardized general purpose Common Channel Signalling (CCS) system:bullet optimized for operation in digital telecommunications networks in conjunction with stored program controlled exchanges;bullet that can meet present and future requirements of information transfer (circuit and non-circuit related) for inter-processor transactions within telecommunications networks for call control, remote control, network data base access, and management and maintenance signalling;bullet that provides a reliable means of information transfer in correct sequence, without loss or duplication." It then consisted of a three-level message transfer part (MTP-for connectionless message transfer), a telephone user part (for analog call setup and control), a data user part (for analog circuit switched data), and a four-level architectural model with a "fuzzy" relation to the OSI seven-layer model. By 1984, in the Red Book, the MTP had matured considerably (especially in the area of congestion control), a new level had been added to provide additional transport functionality (the signaling connection control part or SCCP), an ISDN user part provided call control for digital facilities, and the architectural model had been "adjusted." Future efforts are focusing on cod-to-end ISDN signaling compatibility (harmonization of SS7 andD -channel procedures), non-circuit-related transaction capabilities (e.g., for network database interactions), a complete operations and maintenance application part (OMAP), and a more formal architectural relationship with the OSI model. 相似文献
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介绍了一种基于ARM平台、以太网和GPRS无线通信技术的智能家居远程监控系统,给出了系统的组成及工作原理,着重阐述了系统主要硬件和软件的设计。智能家居远程监控系统的核心是嵌入式W eb服务器。通过该嵌入式W eb服务器,在用户端只需要通过W eb浏览器就可以对家用电器设备进行远程控制。该智能家居远程监控系统还实现了对家庭环境的实时监视和自动报警的功能。 相似文献
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Iera A. Molinaro A. Pace P. Marano S. 《Vehicular Technology, IEEE Transactions on》2005,54(2):550-567
The deployment of highly powerful and sophisticated new-generation satellite broadband systems implies that a large portion of their bandwidth on the radio interface has to be devoted to conveying signalling information. Adequately dimensioning such a signalling bandwidth is an important design objective allowing the effective exploitation of the overall system resources and the cost-effective provision of a target quality of service to multimedia traffic. The performance of two basic techniques for accessing the signalling channels in a reference multimedia geostationary platform is investigated in this paper: random (slotted Aloha) and dedicated access. It is demonstrated here that dedicated access, despite rational appearances, allows 50% saving of signalling bandwidth while satisfying both the system and user constraints in terms of grade and quality of service respectively. This is accomplished by providing a statistical centralized connection admission control on Earth and an intelligent scheduling of the resource requests on board the satellite. 相似文献
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本文提出了一种基于Cortex-M3和Android的智能家居控制系统解决方案。方案采用Contex-M3为内核的ARM处理器,通过移植μC/OS-II操作系统和LwIP协议栈搭建智能家居嵌入式服务器。系统采用智能手机作为控制终端,设计基于Android的客户端应用程序。智能家居内部网络采用ZigBee无线传感网络技术进行搭建,最终实现通过手机对家居内部设备进行远程实时监控的目的。实验表明,该系统成本低廉,运行稳定,用户界面良好,能够满足一些家居对智能化的需求。 相似文献
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The problem of optimizing access and bandwidth sharing among transmission control protocol (TCP) connections in the mobile digital video broadcasting return channel via satellite (DVB-RCS) is tackled in this paper. After sketching the general system architecture, we explicitly deal with the dynamic assignment of bandwidth to TCP connections on the return link, which is accomplished by a network control center (NCC) placed onboard the satellite. Mobile users access the satellite in multifrequency time-division multiple access (MF-TDMA), whereas they receive data from the NCC in time-division multiplexing (TDM). Two different techniques, based on deterministic and random access, are compared in terms of bandwidth usage and average completion time per connection, when the mobile user acts as both server and client. In the server case, to increase the TCP throughput, both packet-level forward error correction (FEC) on data sent by mobile users and a duplicated and delayed acknowledgment technique for TCP acknowledgment traffic from the NCC to the mobile users are applied. An analysis of the packet losses and a simulation campaign of file transfers by employing a realistic channel model has been carried out. The results of the analysis show the convenience of adopting a technique, in addition to the optimal data redundancy in different cases, such as the server or client role of users, their willingness to pay, the file size, and the environment type. 相似文献
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介绍了一种基于ISDN的多媒体通信系统。在该系统中,ISDN用户一网络接口的S接口是通过数字话机来实现的。数字话机提供2B D的接入能力.具备呼叫控制的功能.既可以传输简单的语音,也可以同时传输语音、图像和数据等多媒体信息。 相似文献