Patent ID: 9171483
Filing Date: 2015-10-27
Classification: A61B,G09B

Abstract:
1. A system for providing learning information for visually impaired people based on a haptic electronic board, the system comprising: a first information output device which is a PC for people with low vision for accessing to a learning information server in conjunction with a lecturing and authoring program to receive learning information for people with low vision, wherein said first information output device includes a LAN or WLAN communication unit and having a viewer program for people with low vision installed therein and provides functions of information enlarging, reducing and shifting, color adjusting and brightness adjusting; and a second information output device which is a haptic electronic board for blind people for accessing to the learning information server through a local wireless network using a unique device ID assigned thereto, receiving learning information for blind people from the learning information server, converting the learning information for blind people into haptic information, controlling probes of a plurality of Tiny Ultrasonic Linear Actuators disposed in a multi-arrangement, outputting the haptic information to a graphic output module, and transferring the haptic information to visually impaired people, wherein the lecturing and authoring program and the learning information server are installed in a learning information server PC equipped with a network connection unit using LAN or WLAN and a wireless communication interface unit using the local wireless network, and the learning information server converts learning information into learning information for people with low vision including character, equation, symbol, figure, graph, and image information produced, or learning information for blind people, which may be transferred in a form of haptic information by using an automatic haptic information conversion technology, and transmits the learning information for people with low vision or the learning information for blind people, which can be transferred as haptic information, to one or more information output devices through LAN or WLAN or a local wireless network in a 1:N or a 1:1 transmission mode, or synchronize with a learning page by transmitting information of a current page from the learning information server in accordance with the lecturing and authoring program, wherein said second information output device includes a communication unit for receiving the learning information for blind people from the learning information server through the local wireless communication; a master board for receiving the learning information for blind people from the communication unit to provide a control command, and including an MCU; at least one slave board for receiving the control command from the master board, and controlling ultrasonic actuators arranged in a multi-arrangement, and being connected with the master board through an SPI bus; a plurality of Tiny Ultrasonic Linear Actuators disposed in a multi-arrangement; and a step down DC-DC converter for being supplied with a power supply, converting a DC-DC voltage, and providing the converted DC-DC voltage to the master board and the slave board, wherein a distance between probes of the TULA of the graphic output module of said second information output device is set to a value lower than 2.7 mm, and wherein a module of an array type piezoelectric actuator is manufactured such that it has a multi-structure of TULA and is configured in a multi-arrangement of actuators of TULAs wherein said second information output device includes a graphic information function or a brail scroll function by using user input buttons including top, bottom, left, right, front and rear buttons and is configured so that its screen can be moved to a next screen or a previous screen.