2.4G Wireless Keyless Door Lock

• Main Authors: Wen Te Hsieh, 謝文德
• Other Authors: 陳德請
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/40185369417959543087

碩士 === 逢甲大學 === 資訊電機工程碩士在職專班 === 103 === The keyless door lock is a mature technology, always used in vehicle. The basic theory is using RFID (Radio Frequency IDentification). If user kept the key, and the car door will unlock automatically when the key near the car door. It is a convenience designing, which decrease time to find out the key to unlock door. The less time we spend on finding key, unlock door, the safer it is. However, such kind of convenient design just used in car, not in the house. The target of this research is to make a low cost and low power consumption keyless system for house door lock. There is a new design for keyless: use infrared to detect people. This new design will let door detect and unlock automatic, without push button. This system include three main parts, a remote control with key, door -lock which includes infrared detector , and small motor to lock or unlock door lock and a small sensor to detect the door locked or not. The remote control will use G-sensor to detect the moving of user, to wake up MCU to do the 2.4G RF detect. The door lock will use infrared to detect anyone in front of the door, then opening 2.4G RF to do communications. The last part is the door lock MCU to control a small motor to lock or unlock door, and a sensor to check the action is done or not. It’s hard to find such kind of product which used keyless lock in a house. Because of the cost and power consume is not good. So this is the reason to do the research, wish to solve these problems, and make a new productive value product. After calculation and some test, when using a 2A-Hr battery, the sample could keep standby 781 days and lock/unlock once a day. The remote control will keep working over 1100 days while using the 2A-Hr battery. This system will keep longer standby and using time, better than most other electronic door locks.