Design Of Room Control Unit Based On LPC11C14

The level of China’s economic development has led to the rapid development of tourism.As an important part in the tourism industry, the hotel industry is playing a more and moreimportant role. While at the same time receive the guests, providing them with a comfortableand safe living environment, the hotel management also need to be improved to face theincreasing passenger volume. On the one hand，the hotel needs to solve the needs of theguests in a timely, leave them a good impression and give itself a good reputation; On theother hand, the hotel can save the operation of artificial cost and energy use by improving thehardware and software facilities in the hotel with the increase in passenger volume at the sametime a small increase in hotel staff.Under the precondition of considering the above problem, and also the presentdevelopment situation in China, it’s imperative to afford the hotel managers a high stability,high reliability, high security, high level of hotel room control unit (RCU).The design aims to design a full-featured RCU which can provide the guestsconvenience, and the hotel owners according to their own actual conditions and characteristicsto select some or all of the features to structure their own hotel.This paper introduces the design of room control unit based on LPC11C14, details thefunctions of the RCU, and describes the design of room control unit from three aspects: thehardware design, the software design and the system debugging. Hardware circuit designincludes the main controller LPC11C14and it’s peripheral circuit, the power modules, inputand output module, communication module and so on. The software system can realize thecommunication between PC and RCU, inquire the state of the air controller through theRS485bus. It also can upload the state of the room and the request of customer information tothe PC. After debugging, each module of the system works normally, input signal can carryout the output according the logic relation which has been set up inside the system. All thecommunication modules can also execute the corresponding function.