Design And Implementation Of Intelligent Robot System For Home Service

At present,a variety of service robots have been used in all walks of life,which greatly facilitates people’s lives,improves work efficiency and quality of life.Although these service robots have the function of preliminary walking and simple movement,they have some problems,such as single function,low intelligence,and they cannot serve human daily life well.In this paper,NAO robot is taken as the research object,aiming at the low intelligent level of NAO serving human beings,the function expansion of NAO robot is carried out,and the intelligent robot system oriented to home service is studied.The main research contents of this paper are as follows:(1)Development of NAO robot service functions.In order to realize natural humancomputer interaction between human and NAO robots,this paper develops functional modules such as face recognition,speech recognition and tactile perception of NAO robots.The voice recognition module provided by the robot has the disadvantages of low recognition rate for Chinese and slow recognition speed,and cannot be used for daily communication.In response to this problem,this paper proposes a solution to invoke third-party services,and comprehensively uses open platforms such as Xunfei Cloud and Turing Robot to provide support for voice interaction to improve the accuracy and recognition speed of speech recognition and improve the ability of intelligent question and answer.(2)Design and implementation of a wireless sensing subsystem.Because the NAO robot itself does not have sensors such as temperature,humidity,gas,etc.,and can not perceive the surrounding environmental information,this paper studies the wireless sensing system to enhance the perception ability of NAO robots.Firstly,the overall design of wireless sensor system is carried out The system consists of single chip microcomputer,gas sensor,smoke sensor,dust sensor,formaldehyde sensor,temperature and humidity sensor,WIFI module and GSM communication module.Using WIFI communication technology to give the sensor system the ability to transmit wireless data,get rid of the constraints of cables;The system adopts the method of imitating the serial port,so that the single-chip microcomputer AT89S51 with only one serial port can communicate with multiple serial devices at the same time and solve the problem of shortage of serial ports.Then,the hardware circuit design and software design are respectively performed for each component module.The upper computer control software is designed and developed based on B/S mode.The front-end uses JSP+CSS to realize clear and neat interface layout,and the back-end adopts Spring Boot framework.Finally,the system realizes real-time monitoring of indoor environmental information.When a gas leak,fire or stranger intrusion occurs in the room,the GSM module is activated in time to send SMS to alarm.(3)Design and implementation of intelligent home appliance control subsystem.Firstly,the overall design of the system is planned and designed,and three types of home appliance control methods are proposed.The first is that the family manually controls the opening and closing of the home appliances through the PC software;the second is that the family controls the home appliances through voice commands;the third is the system automatically controls home appliances based on indoor environmental information.Then,the hardware circuit design and software design are respectively performed for each functional module,and the hardware mainly includes: power conversion,single chip control,WIFI and relay modules.The technology of voltage transformation,rectification,filtering and voltage regulation is used to convert 220 V AC power into low ripple 5V DC voltage for use by single-chip modules,and relay control technology is used to realize on-off control of home appliance.Finally,the function of home appliance intelligent control is realized by considering the current indoor environment information comprehensively.Through the comprehensive test and verification of the developed system,the results show that the system can not only carry out natural human-computer interaction with family members,but also meet their needs In the aspect of wireless sensing system,the indoor environmental information can be accurately monitored,and if there is an abnormal situation in the room,the alarm information can be sent out.In the aspect of home appliance control,the three control methods can effectively control the home appliances,in which the accuracy of manual setting mode is as high as 99%,and the accuracy of voice command mode is 96%,fully meeting the needs of family service.In conclusion,the developed system works stably,achieves the preset functions and achieves the expected goals.