CN101770711A

CN101770711A - Device for replacing sign language to carry out teaching and exchanging

Info

Publication number: CN101770711A
Application number: CN200810187466A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-30
Filing date: 2008-12-30
Publication date: 2010-07-07

Abstract

The invention provides a short-distance (about 10m) wireless text communication device which has certain function of networking and can be applied in the teaching activity of a school for deaf-mutes to replace the sign language exchanging among the deaf-mutes. The limitation of sign language is particularly obvious in the teaching of the school for the deaf-mutes. With a microprocessor as a core, the wireless text communication device is externally connected with a radio communication module, a word bank information storage module, a USB interface, a display module and a keyboard input module. When exchanging thoughts, the deaf-mutes first need to input information contents on the input module and display the information contents on the display module at the same time; after finishing inputting information, the deaf-mutes can launch the information onto another device of the same kind and display the information at the same time. After a USB module is added, the wireless text communication device can be connected with a PC to form a network with the PC as a control center, thereby helping the school for the deaf-mutes to carry out more convenient and accurate teaching.

Description

A kind of device of replacing sign language to impart knowledge to students and exchange of being used to

Affiliated technical field

The present invention relates to the wire-less character communicator of a kind of short distance (about 10 meters), its technical field belongs to the communication technology and Chinese characters in computer input technology.This device is used for imparting knowledge to students in school for deaf-mutes, and replaces the sign language between the deaf-mute to exchange.

Background technology

Thought of the present invention is based on: when closely exchanging, use sign language between the deaf-mute, this can bring some problems more, and for example: can cause other people's attention, this is that the deaf-mute wants to avoid; Sign language exchanges accurate inadequately after all.In the teaching process of school for deaf-mutes, limitation of sign language has showed more significantly.The scheme of short distance literal radio communication is very ripe; The Chinese characters in computer stroke input method is widely-used, and it is suitable for being ignorant of substantially deaf-mute's application of phonetic especially.Therefore can realize a kind of short-range text communication device, be used to replace the sign language between the deaf-mute to exchange; And make this device have the ability of certain networking so that in the teaching process of school for deaf-mutes, by teacher by this device organize the student carry out more effective, more accurate learning activities.

Present fundamental purpose is to help the deaf-mute to carry out the invention of information interchange, concentrates on utilization and improvement to mobile phone, as CN101132436, and CN101115088, CN101145807.Obviously, mobile phone, particularly SMS can help deaf-mute and deaf-mute, the information interchange between deaf-mute and the normal person widely.But the deaf-mute carries out aspectant the interchange with the deaf-mute, particularly in education activities, by being unpractical with mobile phone.Therefore be necessary to design a kind of liftoff text communication device that carries out information interchange of only confession deaf-mute's short distance that does not need third party's (as cellular base station) to carry out relaying fully.This device needn't be pursued small and exquisite as mobile phone, and its enter key and display surface can be done more greatly, but requires the literal input convenient and swift, and clear display is generous, and has the function of certain networking.

Summary of the invention

The invention provides the wire-less character communicator of a kind of short distance (about 10 meters), the information interchange that is used to help the deaf-mute is to substitute deaf-mute's sign language.

The technical solution adopted in the present invention is: with the microprocessor core, and external radio communication module, character library information storage module, LCD MODULE, USB module, LED display lamp and keyboard load module; When the deaf-mute will carry out thoughts communication, can adopt the mode that sends Word message, input information content on load module at first, these contents are simultaneously displayed on the display module, after the information input finishes, click the button of control emission, these information are just passed through wireless communication module, be transmitted on another same device, and on the display module of another same device, show, can also remind the arrival of fresh information with the flicker of the LED display lamp on the device, so just can avoid using sign language and carry out complicated thoughts communication.Adding USB module is the teaching for school for deaf-mutes, makes the teacher of school for deaf-mutes can pass through USB interface, and apparatus of the present invention and PC are coupled together, and forming one is the network of control center by PC.PC is connected by apparatus of the present invention of USB interface and teacher, be connected with student's apparatus of the present invention on hand by Radio Link then, teacher just can pass the content of courses on the PC and be dealt on the display screen of student's apparatus of the present invention on hand, and can finish enquirement, the student such as replys at education activities.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the panel synoptic diagram of apparatus of the present invention, and wherein 1 is the LED lamp, and 2 is key groups, and 3 is USB interface, and 4 is built-in 2.4Ghz wireless aerial, and 5 is LCDs.

Fig. 2 is the circuit theory diagrams of embodiment 2.

Fig. 3 is the circuit theory diagrams of embodiment 3.

Embodiment

Choosing of embodiment 1 microprocessor and some modules

Available microprocessor mainly contains 8 single-chip microcomputer and arm processor, and the main aspect of considering is price and performance.As being target with the low price, should select 8 single-chip microcomputer for use, for the device among the present invention, its speed and memory capacity all are enough.Can select arm processor at some for use to the insensitive user of price, arm processor has very strong graphics capability.Available display module has black and white lattice Liquid Crystal Module and color graphics Liquid Crystal Module, is the price factor equally.Arm processor collocation color graphics Liquid Crystal Module can make the present invention in the function with basic text communication, also can increase some other function, as recreation.Available load module can be a key-press module, or touch-screen, and also still price is considered, we can say that the button input is the most cheap a kind of selection, but the touch-screen input also has its distinct characteristic.Available wireless communication module has: 315MHZ or 433MHZ radio communication module, 2.4GHZ radio communication module, bluetooth module.It is preferred option that the present invention recommends the 2.4GHZ radio communication module, and reason is: the part in the 2.4GHZ frequency range is the free frequency range of global general-use, and the commercial module of available maturation is arranged, and than being all global general-use, the bluetooth module that frequency range is free wants cheap; Though 2.4GHZ radio communication module is more expensive than 315MHZ wireless communication mould and 433MHZ radio communication module, institute is expensive few, and 315MHZ wireless communication mould and 433MHZ radio communication module are not global general-uses.

The design and the function declaration of embodiment 2 button input keyboards are referring to Fig. 2.

Used three 74HC165 chips in Fig. 2, the circuit diagram label is SN1, SN2 and SN3.The function of 74HC165 is to transfer parallel input to serial input, the I/O mouth resource that can save microprocessor greatly.Each 74HC165 can connect 8 inputs, can handle 24 inputs after three serial connections.But each input of 74HC165 needs external pull-up resistor, Here it is pull-up resistor row PAI1, PAI2, the effect of PAI3.Through actual measurement, it is appropriate that the resistance of exclusion is selected 10K ohm.The button of two pins, a ground connection, another is connected on INX, on IN0, just can finish being electrically connected of button.

The function of 24 keys can be arranged like this among Fig. 2: the four direction key is used for controlling the position of the present invention's display highlighting, comprises and moving, and moves down, and moves to left, and moves to right.A Menu key is used for Control-Menu.An acknowledgement key is used to confirm certain selection, and especially, when pinning acknowledgement key after one second, transmitter module begins emission information.A cancel key is used for cancellation and deletes some input.

The information input of apparatus of the present invention has two kinds input method: stroke input method and spelling input method, and select for use which kind of input method in menu, to determine.Information interchange stroke input method between the deaf-mute, deaf-mute and non-deaf-mute, as relative, friend exchanges with teacher's etc., and non-deaf-mute can select spelling input method for use.Phonetic is input as all-phonetic input method.5 stroke input methods are adopted in the stroke input.The realization of these two kinds of input methods can be arranged on 13 buttons, and these 13 keys are designated respectively, the 0/a/b key, and the 1/c/d key, the 2/e/f key, the 3/g/h key, the 4/i/j key, the 5/k/l key, the 6/m/n key, the 7/o/p key, the 8/q/r key, the 9/s/t key, the ./u/v key,! / w/x key,? / y/z key.

The sign of 0/a/b is represented the multiplexing of key, under the menu option of numeral, clicks expression 0, connects to double-click expression a, connects by three times expression b, circulations then.After having pressed key, or pressed other key (except the cancel key), or in official hour, for example 0.2 second, actuation of keys does not appear again, and afterwards, the button chosen content is determined.Only used three punctuation marks in the key, ". ", "! ", "? ",,, just much of that with these three symbols as general talk because in experiment, feel

Under the menu option of all-phonetic input method, click expression a, connect to double-click and represent b, circulation then.After having pressed key, or pressed other key (except the cancel key), or in official hour, for example 0.2 second, actuation of keys does not appear again, and afterwards, the button chosen content is determined.

Under the menu option of stroke input method, the 1/c/d key table shows from left to right (one) horizontal stroke, the 2/e/f key table shows that from top to bottom (Shu) is perpendicular, the 3/g/h key table shows from upper right (Pie) left-falling stroke to the lower-left, the 4/i/j key table shows (Dian) point (comprising " right-falling stroke ") from left to bottom right, and the 5/k/l key table shows stroke (second) folding of all band turnover crotches.

Four shortcuts are used to store common-use words, as " goodbye " etc., as long as one press, with regard to emission information.

3 one whole implementation examples of embodiment are referring to Fig. 3.

Among Fig. 3, MCU is a microprocessor, uses the STC89LE58 single-chip microcomputer, and resistance R S1 and electric capacity ES1 constitute its reset circuit, and crystal oscillator CR1 and capacitor C 1 and C2 constitute its oscillatory circuit, and R_LA is the pull-up resistor row of 10K.

2.4GHZ radio module part drawn together with square frame, chip is selected nrf2401 for use, though wherein element is few, the frequency of 2.4GHZ is very high, the own relatively difficulty of implementing advises selecting for use the commercial module of maturation.

LCD is a LCD interface, and the interface of the liquid crystal display of present most different dot matrix numbers is general.Liquid crystal is the 128*64 dot matrix, and Hanzi font library 16*16 dot matrix word library so just can show 4 row, 8 Chinese characters of every row, and this is appropriate for general talk communication.

W25Q16 is the serial storage of 16Mbit, is used to deposit Hanzi font library.

24C00 is the low capacity FALSH of 128bit, is used to store string number, and each device of the present invention all has with it corresponding unique string number to be stored on the circuit board, and being similar to each PC all has a unique mainboard number.

The S_PORT of S_PORT mouth and Fig. 2 can directly be electrically connected, and finishes the control of microprocessor to button.

LAMP is a light emitting diode, is used in the use of apparatus of the present invention the deaf-mute being reminded, and R_LED is the current-limiting resistance of LAMP.

Usb segment has been drawn together with square frame, and the chip model is CH374, and the USB connecting line of available standards is connected with PC.USB_E1 is the filter capacitor of USB power supply, and CTU is a decoupling capacitor, and crystal oscillator CR3 and capacitor C 5 and C6 constitute the oscillatory circuit of CH374.This part only is used for apparatus of the present invention that teacher uses, and the student does not add.Apparatus of the present invention of the band USB interface that teacher uses have the right of priority of communication, and the may command student use not with apparatus of the present invention of USB interface.This right of priority and control are worked out in the software of STC89LE58.

The 3V voltage that entire circuit is provided by battery is as power supply.

Embodiment 4 uses high-end module to implement.

Embodiment 3 has illustrated the situation that Application Example 1 low and middle-end module is implemented.Understanding some in the deaf-mute colony has desired people to functions of use, then can select for use high-end module to implement.For example microprocessor uses the ARM9 processor, and it has stronger graphics processing function; Display module adopts the color LCD screen of band touch function, enforcement of the present invention so just can possess two functions of great use, the one, can use handwritten form identification mode input characters, the 2nd, can increase game function, to in the visiting of the Association for the Handicapped, recognize that some deaf-mutes like playing Hand type video game player; Can on circuit board, increase gsm module, just can make apparatus of the present invention in the function described in finishing this instructions, also possess the function of SMS.

Claims

1. short-range literal radio communications set, it is characterized in that: in hand-holdable shell circuit board is installed, circuit board is battery-powered.

2. according to claim 1, it is characterized in that: on circuit board, a microprocessor is arranged as main control module, preferred kind is 8 a single-chip microcomputer.

3. according to claim 1, it is characterized in that: on circuit board, the radio transceiver chip that miniwatt short distance (about 10 meters) are arranged that links to each other with microprocessor as main logic unit, preferred radio band is the 2.4GHZ frequency range.

4. according to claim 1, it is characterized in that: on circuit board, what link to each other with microprocessor as main logic unit has a LCD MODULE, and preferred kind is a black-white point configuration Liquid Crystal Module, and the one side of the demonstration of module is exposed to outside the shell by the hole on the shell.

5. according to claim 1, it is characterized in that: on circuit board, the FLASH chip that is useful on storage Hanzi font library data that links to each other with microprocessor as main logic unit.

6. according to claim 1, it is characterized in that: on circuit board, what link to each other with microprocessor as main logic unit has a load module, and preferred kind is the button load module, but the pressing part of keyboard input module is exposed to outside the shell by the hole on the shell.

7. according to claim 1, it is characterized in that: on circuit board, what link to each other with microprocessor as main logic unit has a LED display lamp, and its luminous component is exposed to outside the shell by the hole on the shell.

8. according to claim 1, it is characterized in that: on circuit board, what link to each other with microprocessor as main logic unit has a usb interface module, and the USB interface of its standard is exposed to outside the shell by the hole on the shell.

9. according to claim 1, it is characterized in that: on circuit board, what link to each other with microprocessor as main logic unit has a low capacity FLASH storer of marked effect together.

10. short-range literal radio communications set that the present invention explained; be applicable to communicating by letter of Chinese character information and English letter; but can be transformed into the information communication of the literal that is applicable to other Languages apparently; as Japanese character; Arabic literal etc.; therefore in this statement: the literal with different language is difference, and needs only whole principal character and the described identical short-range literal radio communication device of these claims, belongs to the protection category of this patent.