What does OC VC OD ED VD mean in a hotel? Who can tell me.

OC is a clean room: it refers to the room you stayed in that day and the renewed room that has been cleaned.

VC means to buy a house cleanly.

OD stopped the dirty house, that is, the unfinished house.

VD means going to the guest room (not making the room dirty).

Hu means houses and hotels for personal use.

V is empty, C is clean, O is occupied, D is dirty, oo doesn't serve, and Hu dies.

Extended data:

Professional tips

1.RCU is the room intelligent control host (RCU is the abbreviation of room control unit).

2. Each CAN port can be equipped with 1 10 RCU controllers, which can be expanded by a bridge.

3. It is recommended to use shielded twisted pair with a diameter of at least 0.75 mm as the communication medium of the bus.

4. It is suggested to place a communication equipment management computer to facilitate debugging.

5. After the RCU controller of the guest room is connected to the bus, it is connected to the management computer through the CAN bridge and communication card, and each client computer is connected to the server through the switch.

Structure of 6.6. CAN bus is the same as RS-485.

Baidu Encyclopedia-Hotel Room Management System