Design And Implementation Of Multi-Functional Remote Controller For Smart Set Top Box

With the development of Internet technology and the increasing function of the smart TV,the means of interaction between human and TV has becoming more and more diverse and human friendly,TV has not confined to the function of watching television shows only.Game,music and other media applications which based on the android platform has started to integrate in TV platfrom,the traditional remote controller which controled by button can't satisfy people's growing interaction requirements.Therefore,it is necessary to add man-machine interaction such as the mouse function,gesture-based interactions and speech input to the traditional remote controller.According to the requirements analysis of human-computer interaction,this paper designed and implemented a multi-functional human-computer interaction device using ISD9160 microcontroller and the 2.4G wireless technology.The system contains two parts: the transmiiter and the receiver.The transmiiter part is a handheld device,except for the button module,it still has mouse module,air mouse module,audio module and 2.4GHz RF module.2.4G RF modules based on frequency hopping communication technology,it has a strong anti-interference capability;mouse module can achieve cursor movement through sliding on the touchpad;air mouse module can achieve the gesture recongnition,user can play somatosensory game through accomplished air mouse module;audio module can not only allow user to input voice instruction through the microphone,but also acheive audio play through the speaker,it implements the function of voice interaction.The receiver part,including 2.4G RF module and USB module,connected to the smart Set Top Box(STB) through USB interface.This paper describes the design and implementation of the transmiiter and the receiver respectively.Firstly,it describes the circuit connection and configuration of each handheld device module, the design of frequency hopping communication and the process of sending and receiving data through 2.4G RF module, and the process of data collecting of the interactive device.Then,it introduced how to simulate multiple devices through USB interface,and the workflow of 2.4G RF Module. Based on USB HID specification and USB Audio specification,receiver can simulate three HID device and one Audio device to communicate with the smart Set Top Box.This device fully complies with USB HID and USB Audio specification, so that, it can be identified by the generic driver.Finally,we tested the two core function of remote controller-- voice function and air mouse,and we tested the performance of the 2.4G RF module.