Network system of intelligent guest room network management system

The network management system includes two levels. The upper network is an Ethernet-based hotel internal LAN, and the subnet is a fieldbus control network system consisting of intelligent room management server, fieldbus intelligent network switch, room router and intelligent control center hosts distributed in each room.

For advanced networks, use the hotel LAN. Usually, the server is used to access the hotel LAN. This server is also called intelligent room management server. The intelligent room management server is connected with a field bus controller, and the field bus controller collects real-time data of hotel rooms and transmits them to the server. Any computer installed with intelligent room management system software in the local area network can access the server and perform corresponding authorization operations. Generally, lan switches and other network devices are universal products, and the unique network devices in smart rooms are: A, WK604 field bus switch.

Type: Universal Fieldbus Switch

Bus type: enhanced 485 bus

Fan output: 64*4=256 rooms

Data isolation: photoelectric type

Power supply isolation: magnetic isolation

Data refresh rate: 30ms/set

WK604 field bus switch is designed according to the requirements of industrial site, and adopts the full isolation achievement with the highest anti-interference level, that is, the bus branch and branch are fully isolated, and the bus and backplane are fully isolated, which has the ability to resist serious and strong electromagnetic interference in industrial site. The bus protocol adopts enhanced 485, and the system is fully compatible with the standard 485, but it completely overcomes the defects of the traditional 485: the bus will not be locked because of the failure of a certain unit, and the interference inside any unit will not break into the bus, thus ensuring the stable operation of the system.

The field bus system composed of WK604 field bus switch is mature, stable and reliable, which fully meets the technical requirements of hotel intelligent room control. Generally, hotels with less than 200 rooms can choose this product. When the control unit is 100, the data update cycle of the system is 3 seconds.

B.ZWK808 intelligent field bus switch

Type: Intelligent Fieldbus Switch

Bus protocol: oh-hdbus

Maximum fan-out capacity: 256*8

Data isolation: photoelectric type

Power supply isolation: magnetic isolation

Data refresh rate: 2.5 ms/unit

ZWK808 field bus switch is designed in full accordance with the requirements of industrial site, and adopts the full isolation achievement with the highest anti-interference level, that is, the bus branch and branch are fully isolated, and the bus and backplane are fully isolated, which has the ability to resist serious and strong electromagnetic interference in industrial site. The bus will not be locked because of the failure of one unit, and the interference inside any unit will not break into the bus, thus ensuring the stable operation of the system. The bus protocol adopts high-speed oh-hdbus protocol, and the data refresh rate reaches 2.5 ms/ unit.

The fieldbus system composed of ZWK808 fieldbus switch is mature, stable and reliable, which fully meets the technical requirements of hotel intelligent room control. Generally, hotels with rooms above 100 can choose this product. For a hotel with 500 rooms, the data update cycle is 1.25 seconds. Fieldbus router is mainly used for address assignment from bus to guest room, protocol conversion, level conversion, interference blocking, fault isolation and so on. Like all the fieldbus products in Hengdong, this product is completely isolated from the guest room equipment through the fully isolated design bus, and has the function of intelligent fault locking, which ensures that any fault and interference of the guest room equipment will not be transmitted to the bus and will not interfere with other rooms. At the same time, any interference on the bus can not be transmitted to the guest room equipment, ensuring the stable work of the system.

RT 306 1 intelligent fieldbus router

Support bus: RS422/RS485

Room protocol: RS232

Data isolation: photoelectric type

Power isolation: magnetoelectric type

Maximum baud rate: 9600

Power supply voltage: DV 12V.

Power supply current: DC 100mA.

RT 3062 intelligent fieldbus router

Support bus: CANBUS/OHHDBUS

Room protocol: RS232

Data isolation: photoelectric type

Power isolation: magnetoelectric type

Maximum baud rate: 100K.

Power supply voltage: DV 12V.

Power supply current: DC 100mA.