What Does a Room Service Server Do?

The whole system includes computer network communication management software and guest room network control components / equipment system. It adopts mature Ethernet TCP / IP communication protocol. All guest room control information accesses large SQL Server database in C / S (client / server) mode To ensure the stability and reliability of the entire system operation, to overcome the current hotel room control system based on RS-485 bus commonly used by other domestic companies, the method of networking is slow, the reliability is poor, and a variety of network wiring is complex, Various issues such as duplicate construction.

Guest room intelligent service control system

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The entire system includes computer network communication management software and guest rooms

1 System Introduction 4

1.1 System Overview 4

1.2 System Network 4

1.2.1 Room Network 4

1.2.2 Hotel Network 5

1.3 System Features 6

2 Equipment and components 6

2.1 Equipment in the room 6

2.1.1 Networked Smart Room Controller 6

2.1.2 Guest Master Control (Control Input)

Beijing Oriental World

Beijing Dongfang Shibang Real-time Room Information Management Software

Beijing Oriental Shibang Hotel's guest room real-time information management software provides centralized management of hotel guest room status and various control information.

Provide your hotel for free with the working principles, simple maintenance,

8.1 Guest room intelligent service control system 8.1 Annex I

Part of the project performance

Consulate General of the People's Republic of China in New York (USA) () China Reception Office at the United Nations Geneva (Switzerland) ()

Central Office No. 10 () Central Office No. 6 ()

Oriental Jinjiang Hotel () Anhui New Jinjiang Hotel ()

Central Security Bureau Sanatorium () Guomen Road Hotel ()

Dafang Hotel () Baoyue Hotel ()

Zhongyu Century Hotel () Beijing Mangshan Resort ()

Beijing Convention Center () Zhengming Jinjiang Hotel ()

Xinwencai International Hotel () Beijing Pengrun Building ( +)

Beijing Shengdiyuan Hotel () Fudan Pacific Finance Institute ()

Boya Hotel (Jiaxing, Zhejiang) () Boya Hotel (Shanghai) ()

Beijing Shihao International Hotel () China International Chamber of Commerce ()

Oriental Cultural Exchange Center () Crowne Plaza Hotel Zhongjiang ()

Xinbeiwei Hotel () Shanxi Yingze Hotel ()

Beijing Fengshan Hot Spring Resort () Chengde Hotel ()

Beijing Mingyuan Conference Center () Reignwood Manor ( +)

Hanming Hotel () Ordos Hotel ()

Beiyou Technology Building () Beijing Holiday Garden Hotel ()

Chengde Tower Hotel () Novotel Peace Hotel Beijing ()

Radisson Hotel Shanghai Expo ()

8.2 Guest room intelligent service control system 8.2 Annex II

Comparison list of various products

RS485 bus CAN-BUS bus Ethernet Ethernet

Era and background proposed by EIA in 1983 developed by the German BOSHC company in the late 1980s developed by Xerox in 1973

The main applications are mainly for the field of industrial control. At first it was mainly for automotive applications. Now it has been used in the field of industrial control. It was mainly for data network communication. It has been widely used in various industrial and civil fields.

Data transmission rate: Under normal circumstances, the maximum transmission speed of 100 meters twisted pair is 100K. In practical applications, the maximum transmission speed is generally not greater than 10K. In general, the maximum transmission speed of 100 meters twisted pair is 1M. In actual applications, it is generally not greater than 100K. In general, 100 meters The maximum transmission speed of twisted pair is 100M. Generally, 10M or 100M is used in practical applications.

Working mode 1 * master / slave half-duplex non-master / slave half-duplex non-master / slave full-duplex

The wiring method uses twisted-pair wires, a linear network requires a dedicated network, and a non-fault detection mechanism uses a twisted pair. The linear network requires a dedicated network. A fault detection mechanism uses a standard 8-core twisted pair, star-shaped For the existing LAN environment, no separate network is required.

Network structure security 2 *

Anti-interference ability

System compatibility 3 *

Stability

Scalability 4 *

Cost

Low node cost Low node cost, strong anti-interference ability, stable system, short data transmission time Strong anti-interference ability, stable system, high data transmission speed, short data transmission time, good system compatibility

Disadvantages General stability, poor scalability, poor compatibility, expandable lines, poor compatibility, high node cost

Note 1 *:

ü Master / slave mode: one master searches all the slaves in order, and the slaves can upload data only when they are found by the master

ü Non-master / slave mode: any device on the network can send data to other devices

ü Half-duplex mode: The device performs data reception and transmission in a time-sharing manner, and cannot be performed simultaneously.

ü Full-duplex mode: The device can send and receive data at the same time

Note 2 *:

ü For a linear network, when any one node on the network fails, communication failure may occur between that node and the nodes below that node (away from the network exit).

ü For a star network, when any node on the network fails, only that node will be affected, and other nodes will not have communication failures.

Note 3 *:

ü RS485 bus and CAN bus networking need to connect the server by special equipment, and such special equipment will be responsible for the communication between the server and all the nodes below it. This will not only cause a bottleneck in the communication speed, but also cause an unstable factor that causes a large area of network paralysis. The above problems are difficult to solve by setting up a backup line

ü Ethernet (Ethernet) networking uses mature universal network switching equipment, no special equipment is required to connect to the server, and there is no network bottleneck problem. It is easy to solve possible line failures through standby lines.

Note 4 *:

ü The network structure of RS485 bus and CAN bus is special. Each network has a limit on the number of nodes (RS485 maximum 256 nodes, CAN maximum 1024 nodes), which restricts the network expansion. Moreover, even if nodes are added within the number limit, it may cause changes in the physical characteristics of the network, leading to the occurrence of instability factors.

ü Ethernet network has almost no limit on the number of nodes, and adding nodes will not cause physical characteristics of the network