Hotel furniture refers to various types of furniture used in hotels, including hotel room furniture, public area furniture, restaurant furniture, etc. According to different functions and usage locations, hotel furniture can be divided into the following categories: Business Chair,Leisure Chairs,Dining Chairs,Banquet Chair Foshan Shengshi Zhihui Technology Co., Ltd. , https://www.sshotelfurniture.com 3.4 System functions
1. Hotel room furniture: Hotel room furniture refers to various furniture used in hotel rooms, including beds, bedside tables, wardrobes, desks, dressing tables, chairs, etc. The design of guest room furniture should focus on comfort and practicality, while also considering aesthetics and environmental friendliness. The material of guest room furniture is usually high-quality wood or board, and finely processed and decorated to enhance the comfort and luxury of the guest room.
2. Public area furniture: Public area furniture refers to various furniture used in hotel public areas, including lobby furniture, conference room furniture, rest area furniture, etc. The design of furniture in public areas should focus on practicality and aesthetics, while also considering pedestrian flow and functional requirements. Durable materials such as metal, glass, and leather are usually chosen for furniture in public areas to improve its lifespan and wear resistance.
3. Restaurant furniture: Restaurant furniture refers to various furniture used in hotel restaurants, including dining tables, chairs, bars, wine cabinets, etc. The design of restaurant furniture should focus on comfort and aesthetics, while also considering the style and atmosphere of the restaurant. Restaurant furniture is usually made of durable materials such as solid wood, stainless steel, and plastic for easy cleaning and maintenance.
Overall, the classification of hotel furniture is based on its function and place of use. Different types of hotel furniture vary in design, material selection, and manufacturing techniques, but they all emphasize comfort, practicality, and aesthetics. The selection of hotel furniture should be based on the hotel's style and needs to enhance customer satisfaction and the hotel's image.
Yantai Education Metropolitan Area Network Streaming Media Application Case • Distance Teaching Observation and Evaluation
1. Demand background
The Education Committee of Yantai City, Shandong Province has been devoting itself to the construction of education informatization for many years.
In the early days, the Education Committee of Yantai City, Shandong Province had built a broadband information network. On the basis of this broadband network, data services such as office automation, document circulation, information publishing, and mail systems are running. Now, with the further expansion of the network foundation, multimedia information such as video conferencing, live teaching, remote class evaluation, live satellite broadcasting, The network occupies an important proportion. The current transmission bandwidth has established a 100-megabit metro network for the Yantai Municipal Education Commission to 13 county education commissions.
Up to now, the previous network application has not met the requirements of the current majority of students. In order to enrich the network application, improve teaching methods, improve the teaching quality of each district and county, and accelerate the teaching observation, discussion and evaluation of each district and county, the Yantai Education Commission has proposed the construction of a new generation The program requirements of the information education platform.
2. demand analysis With Yantai Municipal Education Commission as the center, it serves as a streaming media server for the headquarters; 13 subordinate districts and counties can also establish their own live broadcast systems. The Municipal Education Commission will upload video conference content, live teaching, real-time live broadcast and video recording. At the same time, the self-built live broadcast resources of each sub-county can also be uploaded to the Municipal Education Commission streaming media server, so that 13 districts and counties can access the live broadcast resources each other.
The entire system is centered on the education committee of Yantai City, and a streaming server is set up. 13 subordinate counties set up their own live broadcast system. The live broadcast of teaching and the resources of the city education commission center are interconnected and shared. The conference live broadcast is provided by the streaming media server. The 13 counties in the subordinate use the conference live data stream as their own live broadcast system resource, so that more receiving ends can receive the live broadcast service quickly and conveniently.
3. solution Century Sunflower has comprehensively considered the technological advancement, economic applicability, security stability, scalability and many other aspects, and has developed a complete set of streaming media teaching application solutions for Yantai Education Metropolitan Area Network.
With Yantai Municipal Education Commission as the center, it serves as a streaming media server for the headquarters; 13 subordinate districts and counties can also establish their own live broadcast systems. The Municipal Education Commission will upload video conference content, live teaching, real-time live broadcast and video recording. At the same time, the self-built live broadcast resources of each sub-county can also be uploaded to the Municipal Education Commission streaming media server, so that 13 districts and counties can access the live broadcast resources each other.
The entire system is centered on the education committee of Yantai City, and a streaming server is set up. 13 subordinate counties set up their own live broadcast system. The live broadcast of teaching and the resources of the city education commission center are interconnected and shared. The conference live broadcast is provided by the streaming media server. The 13 counties in the subordinate use the conference live data stream as their own live broadcast system resource, so that more receiving ends can receive the live broadcast service quickly and conveniently.
The integrated live broadcast system LiveONE and KMS streaming media server software are organically combined. In order to avoid the streaming media server of the Municipal Education Commission due to a large number of client connections, occupying a lot of network resources and reducing the load on the server, we have established an integrated live broadcast system in each sub-county unit, and can use the live video content provided by the Municipal Education Commission as the live broadcast of the county Resources, each sub-county will broadcast live internally, so that each sub-county unit only needs to access the local live broadcast system server address to receive the conference live broadcast.
For teaching in an indefinite location, use mobile coding to upload the teaching content to the streaming media server of the Municipal Education Commission. At the same time, the mobile classroom content can also be sent to the county's live broadcast server, regardless of whether it is in the city or county. The teaching content of each sub-county can be sent to the streaming media server of the Municipal Education Commission at the same time. The streaming media server management teacher of the municipal education commission can watch the teaching content of each sub-county at the same time. Any teaching content can be selected to provide online live teaching according to the needs. Switch to other live broadcast resources, such as video conferences or media files on local disks.
3.1 Design principles l Advanced
It is in line with the latest development trend of computer, network communication technology and streaming media video technology, and is a mature application system.
This system is based on video on demand and live broadcast, focusing on video playback, highlighting remote network transmission, adopting integrated design ideas and integrating advanced management ideas, so as to achieve the best application effect, achieve the greatest degree of comprehensive utilization of resources, and ensure Advancement of system application model;
This system adopts B / S network structure, which can not only meet the requirements of rapid application of local area network, but also meet the needs of large-scale concurrent application of wide area network, ensuring the advanced and forward-looking technology;
l Applicability
This system requires design according to the daily work content of the user, combined with advanced management ideas, and can be updated and adjusted as the business scope changes to better meet the needs;
l Reliability
The system adopts a modular and component design to ensure the stable operation of each module, and to ensure that if one of the modules cannot operate normally, the other modules are not affected; in terms of operating environment, high-performance servers and broadband networks are used for long-term operation ;
l Security
In the design of the system, strengthen the authority management function. Everyone can have their own user name and password, and there is a strict password verification mechanism. All personnel can only watch content that they have permission to watch.
l Scalability
The system adopts a componentized design, which is easy to expand and can dynamically set the video stream. The expansion of the system should be fast and convenient, and the additional investment is small. It is suitable for users to increase video services due to the increase in business volume and user access in the future. The future development needs of users.
3.2 System composition l Collection workstation:
Collect encoded audio and video, stream it and upload it to streaming media server to provide live broadcast service.
A. Application method:
Both live TV and conference live broadcast can be collected and coded by LiveONE, and the data is sent to the streaming media server (KMS / WMS). If each sub-county uses LiveONE to send the live broadcast to the streaming server, it also supports the release of the live broadcast. The receiving end can directly divide the address of the live broadcast server of the county, and can also access the address of the server of the headquarters. LiveONE can also use "pull resources" to use the live broadcast resources of the server or other sub-counties as its own live broadcast channel.
B. Performance:
Collect coded multi-channel analog signals with optional coding methods. Video adopts MPEG4, WMV7, WMV9, audio adopts MP3, WMA, can insert subtitles, pictures and other information in real time.
l Streaming media server (KMS / WMS):
Provide live data streaming service release, the system supports push and pull live data streaming. The system integrates database, WEB service, and can be merged appropriately according to the number of concurrent. Can undertake up to 100 channels of live streaming data service.
A. Application method:
Set up four live TV channels. You can add live resources of each county, and you can switch the live content interface of each county to other media information.
B. Performance:
The client can intersperse with other scenes at any time while broadcasting, and the client will not receive continuously when receiving, and there is no black field phenomenon, and it supports the linear broadcast program commonly used for radio and television users. The live broadcast multicast, unicast, and video and audio synchronization of the same stream are very consistent, with a delay of 1 to 3 seconds.
3.3 Network topology l Live video:
A Comprehensive multimedia coding technology and standard support
Adopt advanced and mature MPEG-4 codec technology, while video encoding also supports WMV7, WMV9, audio encoding uses MP3, WMA encoding, to ensure the effect of audio and video.
Support the broadcast of all mainstream media format files (RM, RMVB, DAT, MPG, etc.), and can insert subtitles and add icons at any time.
B Excellent audio and video synchronization
The unique transmission synchronization technology guarantees the consistency of the permanent synchronization of the video and audio of the same stream, and also ensures the synchronization of the receiving pictures of different client terminals.
C Delay time is extremely short
The unique transmission jitter technology adopts zero-buffering technology, which does not require buffering of media content, making the network transmission delay shorter, and the delay generally does not exceed 1 second.
Minimal buffering for certain complex and harsh network environments to ensure the continuity and stability of end users' audio and video.
l Video on demand:
The A system comes with a streaming media network player and supports various international mainstream video and audio formats.
B Video on demand response speed is extremely fast, that is, on demand, no delay, any drag without pause.
C. By controlling and optimizing the video stream, network and hardware resources (such as CPU, memory, disk I / O, etc.) are greatly saved, and the entire system is super stable during use.
D Realize on-demand broadcasting across network segments and routes without any special settings for the network environment.
E supports Oracle, Sybase, SQL Server, MySQL, Access and other databases.
l Resource management:
A Support real-time compression of software and hardware, support multiple video capture cards
Compatible with most of the current popular capture devices on the market (including support for VFW and WDM-driven capture cards, USB, 1394 capture devices, etc.), and support multi-card and multi-card, multi-card, multi-card multi-channel audio and video acquisition ATVaster (AVCaster) 32-channel composite audio and video acquisition and coding on a single machine.
B Supports unicast and multicast protocols, auto-negotiation of unicast and multicast
Support IGMP multicast, TCP, UDP unicast, and unicast forwarding.
The KMS transmission protocol is used to enable the client and the streaming server to automatically negotiate the best transmission protocol to fully and effectively use the network bandwidth. When receiving live broadcasts, first search for multicast data to save bandwidth, users do not need to configure the terminal use protocol, everything is done automatically.
C Support multi-level live content distribution, rebroadcast and rebroadcast
Media content from the same source can be forwarded across network segments. Acquisition, rebroadcast, and recording can be installed separately, and the rebroadcast service can be cascaded arbitrarily, making the resource configuration more reasonable and suitable for various network environments.
D fully supports the new generation network protocol IPv6
On the basis of supporting the current network protocol IPv4, it also fully supports the new generation Internet protocol IPv6, which facilitates a smooth migration to an IPv6 network in the near future.
E Multiple user authorization authentication methods
Provide management methods such as IP address segment restriction, user grouping, and classification.
l System management:
A meticulous remote management
Through the unified management terminal to achieve comprehensive remote management. Upload programs remotely, view users' online status, control recording, set user level permissions, etc.
B Convenient and unified management operation
Streaming media services, databases, and Web services can be managed in a unified interface, greatly reducing management costs and truly achieving unified management.
C Program management is fast and convenient
The user can customize the program classification, the program source is released quickly and conveniently, can process single programs and batch programs, and supports remote program management.
D Simple bandwidth management
The bandwidth used by the system can be limited, so that the total bandwidth occupied by the system to provide live, on-demand or broadcast services will be limited to a certain range and will not affect other data services.
E Detailed and comprehensive system inspection
The server's CPU usage, memory usage, disk I / O, network I / O and other technical indicators can be visually displayed in charts or graphs.
4. Program review Through the implementation of this plan, the Yantai Education Commission has realized distance teaching observation and evaluation, distribution, accumulation, sharing and reuse of educational resources, which has enriched network applications, accelerated information transmission, and improved work efficiency, thereby creating a whole Digital streaming education platform for metropolitan area networks.