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1. Overview of the Internet of Things
In the era of rapid development of information technology, the Internet of Things has become a trend. The Internet of Things is not only a technical hotspot, it is the ultimate development direction of the information age, and it is the inevitable way for mankind to move from informatization and automation to intelligence. As a cutting-edge technology, the Internet of Things is the future development trend of the global home appliance industry and an important technological trend for the development of smart switches.
From the perspective of technological evolution, the development of switches from pull-wire switches to traditional key switches and then to smart switches has made the use of switches in life more convenient. Intelligent switches are not only convenient to use, but also promote energy saving and environmental protection. , Downsizing and increasing efficiency have improved people’s quality of life. The application of the Internet of Things technology to smart switches has once again opened the door to future smart life for people.
2. Power line carrier communication technology
The power line carrier communication technology uses the existing AC power line as the communication line, eliminating the need for traditional wiring engineering. Power lines are reachable everywhere in homes, companies and various places. They are more widely used than cables or even fixed telephone networks and have obvious advantages.
In the rapid development of low-carbon economy and energy conservation, energy management service solutions based on the LonWorks control network technology invented by Echelon in the United States are being used more and more widely. In the world, there are about 90 million terminal devices with built-in Echelon’s intelligent network chip connected by the LonWorks control network, and the intelligent energy management control server is remotely monitored, controlled, diagnosed and managed via the Internet, such as street lights, electric meters, Actuators, sensors, etc. Its application areas involve buildings, factories, transportation systems, homes, public facilities, smart grids, green cities, etc.
In the Zhongling Internet of Things hotel guest room intelligent system (hereinafter referred to as the Zhongling Guest Control System), the communication between the equipment in the guest room is the most advanced power carrier communication technology, which replaces all the strong electric loads in the past by the host The control form enables each switch (or air conditioner controller) to be directly connected to the light (or fan coil), which not only realizes the real modularization, but also can be unified with the most traditional indoor switch wiring, which greatly reduces the installation and Trouble with maintenance.
Third, the external network composition of the system
The main line of the system (between the guest room and the monitoring PC) adopts the mature TCP/IP Ethernet communication protocol, so that the information in the guest room can be accurately and quickly transferred to the central server within 1 second, which overcomes the use of RS-485 bus The disadvantages of slow speed and poor reliability. Each room contains a TCP/IP gateway, and several hubs and a computer server are set up according to the number of rooms.
Fourth, the composition of the guest room network
Guest room control equipment mainly includes a wave trap, several lighting control panels, several air conditioning control panels, a comprehensive service display panel, a Roule doorbell and a power switch.You can decide whether to add the following accessories according to actual needs: a TCP/IP gateway, one or more dimming control panels, one or more magnetic switches, one or more infrared sensors, one or more emergency button panels, one Or multiple weak current input modules, one or more high-power drive modules
Five, the embodiment of humanity
1. Open the door and the corridor lights will automatically light up for one minute.
2. Insert the key card to get power, the backlight of all the panels in the room will be automatically lit, at this time the guest can freely set the indoor temperature and light on the corresponding control panel. Pull out the key card, the system will automatically turn off all lights and air conditioning after 15 seconds.
3. Press the sleep mode switch, all lamps will be turned off, the night light will automatically turn on, or the night light can be turned off separately. Press any button on the panel again to exit the sleep mode, and the bed lamp will automatically turn on at 20% brightness.
4. When the key card is not inserted in the power switch, the doorbell button indicator on the integrated service display panel outside the door does not light up, and pressing the doorbell button at this time is also invalid. The waiter can know whether there is anyone in the room through the doorbell indicator light.
5. When the guest presses the clean room button before leaving the room, even if the card is removed, the room cleaning information will still be automatically retained until the service staff arrives, and the card will be automatically cancelled after the card is inserted.
6. The human body infrared detector can be installed in the toilet, and when someone enters, the light and exhaust fan of the toilet are automatically turned on.
Six, network management functions
The server is connected to the computers of the front desk, floor, guest room center, engineering department, security department and other departments through the switch/hub to form an internal Ethernet. Through fast information exchange and data processing, computer system management is realized. Hotel managers can log in to the guest room management system with corresponding identities on each computer, and according to their different permissions, can view relevant information in the guest room and implement control. The system functions are as follows:
1. It can display real-time information such as key card insertion/removal, identity of the person inserting the card, please clean up, door opening and closing, room temperature and other real-time information, and the user can customize the display of the state information concerned.
2. View the event records of a certain floor, a certain room or a certain device in a period of time.
3. Add an execution task for all guest rooms, a certain floor, a certain room type, or a certain guest room. This task can be executed periodically or only once.
4. It can roughly count the energy consumption of the entire hotel, a certain floor, a certain room, and a certain equipment over a period of time.
7. Energy saving and emission reduction
1. When the infrared detector in the toilet does not detect a signal of movement within 20 minutes, the light and exhaust fan will be automatically turned off.
2. When the guest opens the door or window, the air-conditioning (or heating) output is automatically turned off, and you can choose whether to keep the fan running according to your needs. After the doors and windows are closed, the supply of air-conditioning (or heating) will be automatically restored.
3. In the summer, the system administrator can add daily tasks through the management computer to increase the air-conditioning temperature in the guest room to a certain limit within a specified time period (such as 2 am to 5 am), which not only achieves the purpose of energy saving, but also It is not easy to let guests catch cold.
4. The system administrator can view the load with the largest monthly energy consumption in the guest room through the management computer, so as to consider whether to replace other models with lower power.
8. Engineering case
1. Eaststar Hanyong Hotel Shenzhen
Shenzhen Dongxing Hanyong Hotel is the second four-star business hotel invested and constructed by Shenzhen Hanyong Industrial Co., Ltd. It is located in the Shajing business district of Shenzhen. It has more than 200 suites for entertainment, leisure, food, shopping, business travel, conferences, A large-scale hotel integrating vacations, officially opened in January 2007.
2. Shenzhen Yifeng Business Hotel
Yifeng Business Hotel is a business hotel decorated in accordance with international four-star standards in Shenzhen, integrating accommodation, dining and entertainment. The main building is 15 floors high, with 150 rooms/sets of various types, a pleasing accommodation environment, a full range of business meeting and recreational facilities and an intelligent control system.
3. Xiamen International Trade Golden Gate Bay Hotel
Xiamen Guomao Jinmenwan Hotel is located on Dadeng Island, one of the three heroic islands with beautiful scenery. It is close to downtown Xiamen and only one sea away from Kinmen County, Taiwan Province. It has a unique geographical location. The hotel has 96 luxurious rooms, all equipped with high-speed broadband Internet access, spacious and comfortable, warm and demure.
4. Suzhou Yangcheng Lake Landmark Resort
Located on the picturesque Yangcheng Peninsula of Suzhou, Yangcheng Lake Land Resort Hotel is the first five-star hotel in Suzhou Industrial Park. Class-class resort hotel, 190 luxurious lake-view guest rooms and suites are equipped with comfortable hotel intelligent equipment and indoor facilities.
5. Ningbo Nanyuan Universal Hotel
The Ningbo Nanyuan Universal Hotel, built with platinum five-star standards, is located in the golden area of Ningbo’s investment and commerce-Yinzhou New City, adjacent to Wanda Plaza and Yinzhou District Government. The main building of the hotel is 170 meters high and has 53 floors. It was ingeniously conceived by the well-known American ARQ design firm. The sail shape with strong visual impact echoes the grandeur of the Oriental Port of Ningbo, which means “Sailing Sail”. It is the current city of Ningbo. One of the top ten fashion landmarks.
The hotel has nearly 400 luxurious and elegantly decorated guest rooms with oversized areas, which provide guests with comfortable and private space to the utmost extent. Equipped with advanced guest room intelligent management system, unique four-pipe air conditioner, satellite TV, wired + wireless broadband network, exclusive ladies’ floor, and thoughtful and personal “Emperor Golden Butler” service, showing the delicate and noble quality, full of rich oriental charm.
Dongguan Zhongling Electronic Technology Co., Ltd. is a modern high-tech enterprise integrating R&D, production and sales.
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