Design Of Bluetooth Lock System Controlled By Intelligent Mobile Phone

Locks are one of the most closely connected items in people’s daily lives.With the social,technological and cultural progress,there is a growing demand for the performance of the lock.Therefore,the traditional mechanical lock has become increasingly unable to meet the need of people.And the intelligent lock is gradually developing and replacing traditional locks.The type of the intelligent lock is rich,such as password locks,fingerprint locks,IC card locks,wireless remote control locks.In this thesis,what we study is the representative of the new intelligent lock: the Bluetooth lock.Today,with the rapid development of modern communication technology,Bluetooth technology has occupied a space.It is based on low-cost,short distance wireless links,which can replace the cable to connect with a certain range of computers and communication equipments,and achieve rapid interconnection between different devices.Therefore,the Bluetooth lock has a wide range of applications and its advantages can not be replaced.Nowadays,we have entered a new era-the Internet age.Information plays an important role in our daily lives,and computers and the Internet are an integral part of our work and life.In this context,we seem to be anytime,anywhere into the network,which is inextricably linked to the popularity and development of smartphones.Although information technology brings us convenience,a variety of network and information system security issues have exposed.Communication relies on information security.Once the security issues,all the communication content will be meaningless.Based on the above considerations,the Bluetooth lock system controlled by intelligent mobile phone is designed in this thesis.The main research and work are as follows:First,design the Bluetooth lock system.Based on the performance of Bluetooth lock,it is necessary to design different working modes according to different situations.The Bluetooth lock system designed in this thesis has three different working modes,which are administrator working mode,fixed users working mode and temporary users working mode.In this thesis,discuss the implementation of the modes in detail and research the different schemes.Besides,decompose function and finish the system design based on the different functional modules.This part is one of the innovations of this thesis.Second,design the data transmission.According to the design requirements,design the way to transmit and store data.Third,design the data encryption.Use the encryption algorithm and “so” dynamic library double encryption ways for data encryption,to ensure communication security.This part is one of the innovations of this thesis.Fourth,design the intelligent control terminal.In this thesis,the smart phone based on Android operating system is used as representative.Therefore,design the top-level software which applies to Android system.Fifth,design the response execution terminal.In this thesis,choose CC2540 Bluetooth chip to develop.The response execution terminal design includes two aspects,software design and hardware design.After all of the functions are accomplished,the function test is carried out for each functional module to ensure that each module can be stable and normal operation.