Participatory Voice Guidance System Design And Related Technology Research

With the aging of our country is becoming increasingly serious,the number of the aged suffering from Alzheimer's disease is becoming larger and larger.At the same time,with the development of urbanization,the aged of coming into new city are not familiar with the road.So the phenomenon of the lose of the aged is also more and more frequent in real life.At the same time,the phenomenon of the lost or abducted children often occurs in our real life.In the meantime,with the rapid development of wireless network,the mobile devices in daily life have faster and faster speed of Internet access.In the meantime,as the popularity of intelligent mobile devices and the stronger computing power of mobile devices,the mobile devices almost comparable to the personal computers and integrate more and more sensors.Without adding more device,the mobile devices have strong computing power and perception in the same time.Therefore,with the help of these technologies,a participatory voice guidance system that was primarily aimed at helping people find missed relatives have been presented and designed.In order to realize the system,the related necessary technologies have been studied.Firstly,to reduce the resource consumption of the client and the server,and the delay between the server and the user client,the technology of the selection of the appropriate participants have been studied.By modifying the traditional way of broadcasting a system-wide broadcast to a directional range,the number of messages of the server and the user's client have been reduced.Secondly,in order to improve the quality of data feedback of user participants,the research have been studied based on the credibility,specifically through the task seekers to provide feedback on the user feedback evaluation to determine the user credibility,and through the negative degree of the credibility evaluation rate to make the evaluation of reputation objective;At the same time,the user incentive mechanism of participatory computing has been studied,which is based on the virtual incentive method,the improvement of the reverse auction model and the user incentive mechanism based on the relationship between supply and demand.Besides,the improved reverse auction mechanism has been combined with the previous reputation rating.Through these user incentive mechanism,the level of user participation has been improved as much as possible,and mission seekers have got more help to find their lost relatives.Finally,the concrete process of the design and implementation of the participatory voice guidance system is introduced.