CN204204266U - A kind of portable braille point of high continuation of the journey low cost shows device - Google Patents
A kind of portable braille point of high continuation of the journey low cost shows device Download PDFInfo
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- CN204204266U CN204204266U CN201420330353.3U CN201420330353U CN204204266U CN 204204266 U CN204204266 U CN 204204266U CN 201420330353 U CN201420330353 U CN 201420330353U CN 204204266 U CN204204266 U CN 204204266U
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Abstract
The portable braille point that the utility model discloses a kind of high continuation of the journey low cost shows device, and it comprises: the main process equipment connected successively, lattice driver module, blind spot display module and touch sounding module; Wherein, described blind spot display module comprises concavo-convex dot matrix, and each sags and crests includes: first and second insulate block set, first and second memory alloy spring and hollow block set; Described first insulation block set is placed in bottom, and described second insulation block set is fixed on above described first insulation block set, and described hollow sleeve cover for seat is on the upper end stylolitic part of described second insulation block set; Described first memory alloy spring one end is fixed on the screw thread place of described first insulation block set, and the other end is fixed on the screw thread place of described second insulation block set; One end of described second memory alloy spring is fixed on the screw thread place of described second insulation block set, and the other end is fixed on the screw thread place of described hollow block set.By adopting braille point disclosed in the utility model to show device, improve flying power, reduce cost and being convenient to daily carrying.
Description
Technical field
The utility model relates to a little aobvious device technical field, and the portable braille point particularly relating to a kind of high continuation of the journey low cost shows device.
Background technology
The aobvious device of point has another name called blind person's display or some word machine, and referring to can by the information braille simultaneous display on computing machine, is convenient to blind person and touches and read, by with read shield software with the use of, the word reading to shield software reading can be shown to a little on aobvious device by braille.Braille on the aobvious device of point can be protruding automatically by point, and blind person experiences word by sense of touch.
At present, on domestic and international market, braille point shows device is all based on based on electromagnetism and piezoelectric type, makes the mode of its volume change control the concavo-convex conversion of braille point by amplification piezoelectric pottery, therefore bulky, and price is high.To also have laboratory to pass overtime acoustic wave array and EPA design of material in research in addition abroad, but price is high is difficult to commercialization, not yet show-and-tell.
Such as, the product of Tsing-Hua University's development & production: novel braille point shows device V4.This braille point shows device and is made up of 40 side's automatic braille unit, Word message on computer can be shown automatically by reading to shield after software translation becomes braille, blind person can touch with hand the Braille that braille unit changes and obtain the information that computer screen shows.
But, because its method for designing is based on piezoelectric type, control to realize the concavo-convex conversion of braille point by the change of piezoelectric ceramics volume, therefore make its volume excessive; In addition, the New concave-convex point array sensor that itself and Japan cooperate has the electroluminescent material of very big deformation to make, and driving voltage is high, and driving circuit is complicated, so driving circuit volume is large, whole product is comparatively not easy to carry, and price is high.On the other hand, cost is higher, can not meet the service condition of common blind person family, mostly is the buying of blind person educational institution at present.
Utility model content
The portable braille point that the purpose of this utility model is to provide a kind of high continuation of the journey low cost shows device, improves flying power, reduces cost and is convenient to daily carrying.
The purpose of this utility model is achieved through the following technical solutions:
The portable braille point of high continuation of the journey low cost shows a device, and this braille point shows device and comprises: the main process equipment connected successively, lattice driver module, blind spot display module and touch sounding module;
Wherein, described blind spot display module comprises concavo-convex dot matrix, and each sags and crests includes: first and second insulate block set, first and second memory alloy spring and hollow block set; First and second insulation block set described forms by big top and small bottom two stylolitic parts, and screw thread is carved with on the surface of the stylolitic part of lower end;
Described first insulation block set is placed in bottom, and described second insulation block set is fixed on above described first insulation block set, and described hollow sleeve cover for seat is on the upper end stylolitic part of described second insulation block set; Described first memory alloy spring one end is fixed on the screw thread place of described first insulation block set, and the other end is fixed on the screw thread place of described second insulation block set; One end of described second memory alloy spring is fixed on the screw thread place of described second insulation block set, and the other end is fixed on the screw thread place of described hollow block set.
Further, described lattice driver module comprises: the on-site programmable gate array FPGA connected successively and Darlington transistor array, and wherein, each memory alloy spring is all connected with the I/O I/O interface of in Darlington transistor array.
Further, when described first memory alloy spring energising post shrinkage, the stylolitic part of described second insulation block set upper end is recessed in the hole of described hollow block set;
When described second memory alloy spring energising post shrinkage, the stylolitic part of described second insulation block set upper end protrudes into outside the hole of described hollow block set.
Further, described touch sounding module comprises:
Interconnective infrared touch frame and voice synthetic module;
Wherein, described infrared touch frame comprises: the Infrared emitting and receiving sensing element on touch-screen housing.
The technical scheme provided as can be seen from above-mentioned the utility model, utilizes the design of memorial alloy to realize projection and the depression of braille dot matrix, greatly can save cost of products; And this structure can make braille point show device is tending towards less more thinning, is convenient for carrying; In addition, due to the memorial alloy adopted, so after driving deformation produces, being automatically keep, when not having driving condition to change, only having the chip consumed power on circuit, and there is not the persistent current kept needed for blind spot, so low in energy consumption, thus improve flying power.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The portable braille point of a kind of high continuation of the journey low cost that Fig. 1 provides for the utility model embodiment one shows the schematic diagram of device;
The portable braille point of a kind of high continuation of the journey low cost that Fig. 2 provides for the utility model embodiment one shows device principle of work schematic diagram;
The element schematic diagram of a kind of blind spot display module that Fig. 3 provides for the utility model embodiment one;
The composition structural representation of a kind of blind spot display module that Fig. 4 provides for the utility model embodiment one;
The schematic diagram of the drive interface of the single character side that Fig. 5 provides for the utility model embodiment one;
The principle schematic of the driving blind spot display module work that Fig. 6 provides for the utility model embodiment one.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection domain of the present utility model.
There have been ten thousand blind person patients more than more than 1300 in current China, has wherein both comprised developmental disability personage, has again increasing people to become the blindage personage day after tomorrow.
Normal Chinese character is translated to the ASCII character of blind spot by the utility model embodiment by character library, the driving video card write by adopting FPGA (field programmable gate array) and external host join, then FPGA drives the memorial alloy on wherein each Braille under the Controlling model function set up by the inner Darlington transistor array of bridge joint, thus realizes Chinese character and translate to the idea braille that can identify for blind person.Blind person is made to carry out normal Braille reading.Due to the one-way memory alloy adopted, so after driving deformation produces, be automatically keep.When not having driving condition to change, only have the chip consumed power on circuit, and there is not the persistent current kept needed for blind spot, so low in energy consumption, be similar to the electronics ink screen effect in electronic display.Panel surface adopts infrared scan array can detect the position that blind person's hand touches.Therefore user can be allowed to select whether sounding while touch, and reach the object of braille teaching with this, this, to hearing or the normal blind person of linguistic function, can play certain study or the effect of exercise.
Embodiment one
The portable braille point of a kind of high continuation of the journey low cost that Fig. 1 provides for the utility model embodiment one shows device.As shown in Figure 1, it mainly comprises: the main process equipment connected successively, lattice driver module, blind spot display module and touch sounding module;
Wherein, described blind spot display module comprises concavo-convex dot matrix, and each sags and crests includes: first and second insulate block set, first and second memory alloy spring and hollow block set; First and second insulation block set described forms by big top and small bottom two stylolitic parts, and screw thread is carved with on the surface of the stylolitic part of lower end;
Described first insulation block set is placed in bottom, and described second insulation block set is fixed on above described first insulation block set, and described hollow sleeve cover for seat is on the upper end stylolitic part of described second insulation block set; Described first memory alloy spring one end is fixed on the screw thread place of described first insulation block set, and the other end is fixed on the screw thread place of described second insulation block set; One end of described second memory alloy spring is fixed on the screw thread place of described second insulation block set, and the other end is fixed on the screw thread place of described hollow block set.
Further, described lattice driver module comprises: the on-site programmable gate array FPGA connected successively and Darlington transistor array, and wherein, each memory alloy spring is all connected with the I/O I/O interface of in Darlington transistor array.
Further, when described first memory alloy spring energising post shrinkage, the stylolitic part of described second insulation block set upper end is recessed in the hole of described hollow block set by described first memory alloy spring contraction;
When described second memory alloy spring energising post shrinkage, the stylolitic part of described second insulation block set upper end is protruded into outside the hole of described hollow block set by described second memory alloy spring contraction.
Further, described FPGA comprises: control function module, for storing the control function model under different temperatures environment;
When described FPGA is after the blind spot to display receiving main process equipment transmission, obtain current environment temperature, and select corresponding control function from described control function module, carry out the conversion of electric energy to mechanical energy.
Further, described touch sounding module comprises: interconnective infrared touch frame and voice synthetic module;
Wherein, described infrared touch frame comprises: the Infrared emitting and receiving sensing element on touch-screen housing.
For the ease of understanding the utility model, below in conjunction with accompanying drawing 2-6, device being shown to this portable braille point and being described further.
As shown in Figure 2, in the utility model embodiment, normal Chinese character can be translated to the ASCII character of blind spot by the main process equipment that this braille point shows device by character library, be sent to lattice driver module by SPI interface again, drive blind spot display module to carry out the concavo-convex display of braille by described lattice driver module.
In the utility model embodiment, blind spot display module mainly comprises 5 parts, concrete see Fig. 3: first and second insulation block set (31-32), first and second memory alloy spring (33-34) and hollow block set 35; First and second insulation block set described forms by big top and small bottom two stylolitic parts, and screw thread is carved with on the surface of the stylolitic part of lower end.
Schematic diagram after assembling can see Fig. 4, and described first insulation block set 31 is placed in bottom, and described second insulation block set 32 is fixed on above described first insulation block set 31, and described hollow sleeve cover for seat 35 is on the upper end stylolitic part of described second insulation block set 32; Described first memory alloy spring 33 one end is fixed on the screw thread place of described first insulation block set 31, and the other end is fixed on the screw thread place of described second insulation block set 32; One end of described second memory alloy spring 34 is fixed on the screw thread place of described second insulation block set 32, and the other end is fixed on the screw thread place of described hollow block set 35.It should be noted that, in described first and second insulate block set and hollow block set, the number of turns of screw thread can set according to the actual requirements, and the screw thread in described second insulation block set 32 can guarantee that first and second memory alloy spring is fixed.
The utility model embodiment employs the memorial alloy (can be one-way memory alloy) being designed to spring.Be designed to the life-span that first spring shape ensure that material, obtain through material test: remember deformation in 500 ten thousand times and be about 2%; Secondly, under cooling state, act on while two stable state springs, the point of projection can be made to maintain, and decline can not be produced because of artificial compressing.Memory effect due to memorial alloy is thermal deformation, and electric current is directly added in alloy two ends by us, in order to circuit can scale, devises corresponding digital driver circuitry.Driving voltage is 5V, and phase transition temperature is 45 degree completely.
When carrying out concavo-convex display, mainly being undertaken moving up and down by the second insulation block set 32 realizes, and the first insulation block set 31 remains stationary state with hollow block set 35.When described first memory alloy spring energising post shrinkage, the stylolitic part of described second insulation block set upper end is recessed in the hole of described hollow block set by described first memory alloy spring contraction, simulates the projection of braille point with this; When described second memory alloy spring energising post shrinkage, the stylolitic part of described second insulation block set upper end is protruded into outside the hole of described hollow block set by described second memory alloy spring contraction, simulates the depression of braille point with this.By such design, realize the stable motion of upper and lower both direction, the motion of each point also can be made separate and unaffected.
In the utility model embodiment, lattice driver module is used for driving the work of blind spot display module, it mainly comprises: the on-site programmable gate array FPGA connected successively and Darlington transistor array, wherein, each memory alloy spring is all connected with the I/O I/O interface of in Darlington transistor array.
The schematic diagram of the drive interface of single character side as shown in Figure 5.
Darlington array is made up of ULN2803, antenna array control adopts FPGA, described FPGA comprises: control function module, for store control function model under different temperatures environment (function model wherein for by iterative learning, artificial participate in semi-automatic under the parameter tuning that completes); When FPGA is at the blind spot to display receiving main frame transmission, then current environment temperature is recorded with temperature sensor communication, thus selected corresponding control function (driving that function exports is the PWM ripple of different proportion dutycycle in the unit time), thus make most of electric energy dress be changed to mechanical energy, reduce thermal losses and realize dot matrix and drive (its principle can see Fig. 6).In the utility model embodiment, by whole module generation driving circuit, the video card of Braille display can be encapsulated as improving integrated level.
In the utility model embodiment, described touch sounding module comprises: interconnective infrared touch frame and voice synthetic module;
Wherein, described infrared touch frame comprises: the Infrared emitting and receiving sensing element on touch-screen housing.When practical application, in screen surface, form infra-red detection net, any touching object can change the infrared ray on contact and realize touch screen operation.Infrared-type touch screen to realize principle similar to surface acoustic wave type touch-control, it uses Infrared emitting and receiving sensing element.These elements form infra-red detection net in screen surface, and the object (such as pointing) of touch control operation can change the infrared ray of electric shock, and then the response that the coordinate position and realizing being converted to touch-control operates.On infrared-type touch screen, the circuit board arrangement of four limit arrangements of screen has infrared transmitting tube and infrared receiving tube, the infrared ray matrix that corresponding formation intersects anyhow.
Voice synthetic module, can use University of Science and Technology to interrogate the voice synthetic module flown and realize.
In the utility model embodiment, utilize the design of memorial alloy to realize projection and the depression of braille dot matrix, greatly can save cost of products; And this structure can make braille point show device is tending towards less more thinning, is convenient for carrying; In addition, due to the memorial alloy adopted, so after driving deformation produces, being automatically keep, when not having driving condition to change, only having the chip consumed power on circuit, and there is not the persistent current kept needed for blind spot, so low in energy consumption, thus improve flying power.
Those skilled in the art can be well understood to, for convenience and simplicity of description, only be illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, inner structure by device is divided into different functional modules, to complete all or part of function described above.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (4)
1. the portable braille point of high continuation of the journey low cost shows a device, it is characterized in that, this braille point shows device and comprises: the main process equipment connected successively, lattice driver module, blind spot display module and touch sounding module;
Wherein, described blind spot display module comprises concavo-convex dot matrix, and each sags and crests includes: first and second insulate block set, first and second memory alloy spring and hollow block set; First and second insulation block set described forms by big top and small bottom two stylolitic parts, and screw thread is carved with on the surface of the stylolitic part of lower end;
Described first insulation block set is placed in bottom, and described second insulation block set is fixed on above described first insulation block set, and described hollow sleeve cover for seat is on the upper end stylolitic part of described second insulation block set; Described first memory alloy spring one end is fixed on the screw thread place of described first insulation block set, and the other end is fixed on the screw thread place of described second insulation block set; One end of described second memory alloy spring is fixed on the screw thread place of described second insulation block set, and the other end is fixed on the screw thread place of described hollow block set.
2. braille point according to claim 1 shows device, it is characterized in that, described lattice driver module comprises: the on-site programmable gate array FPGA connected successively and Darlington transistor array, and wherein, each memory alloy spring is all connected with the I/O I/O interface of in Darlington transistor array.
3. braille point according to claim 1 and 2 shows device, it is characterized in that,
When described first memory alloy spring energising post shrinkage, the stylolitic part of described second insulation block set upper end is recessed in the hole of described hollow block set;
When described second memory alloy spring energising post shrinkage, the stylolitic part of described second insulation block set upper end protrudes into outside the hole of described hollow block set.
4. braille point according to claim 1 shows device, it is characterized in that, described touch sounding module comprises:
Interconnective infrared touch frame and voice synthetic module;
Wherein, described infrared touch frame comprises: the Infrared emitting and receiving sensing element on touch-screen housing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420330353.3U CN204204266U (en) | 2014-06-19 | 2014-06-19 | A kind of portable braille point of high continuation of the journey low cost shows device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420330353.3U CN204204266U (en) | 2014-06-19 | 2014-06-19 | A kind of portable braille point of high continuation of the journey low cost shows device |
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| CN204204266U true CN204204266U (en) | 2015-03-11 |
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| CN201420330353.3U Expired - Fee Related CN204204266U (en) | 2014-06-19 | 2014-06-19 | A kind of portable braille point of high continuation of the journey low cost shows device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104036672A (en) * | 2014-06-19 | 2014-09-10 | 游启麟 | Portable braille alphabet touch-pronouncing device with long battery life and low cost |
| WO2016197928A1 (en) * | 2015-06-11 | 2016-12-15 | 中国盲文出版社 | Braille display |
| CN106445187A (en) * | 2016-10-09 | 2017-02-22 | 刘咏灏 | Braille electronic inputting device |
| WO2022110237A1 (en) * | 2020-11-30 | 2022-06-02 | 华为技术有限公司 | Sensing apparatus, electronic device and control method for electronic device |
-
2014
- 2014-06-19 CN CN201420330353.3U patent/CN204204266U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104036672A (en) * | 2014-06-19 | 2014-09-10 | 游启麟 | Portable braille alphabet touch-pronouncing device with long battery life and low cost |
| WO2016197928A1 (en) * | 2015-06-11 | 2016-12-15 | 中国盲文出版社 | Braille display |
| US10733907B2 (en) | 2015-06-11 | 2020-08-04 | China Braille Press | Braille display |
| CN106445187A (en) * | 2016-10-09 | 2017-02-22 | 刘咏灏 | Braille electronic inputting device |
| CN106445187B (en) * | 2016-10-09 | 2018-11-27 | 石美秀 | A kind of braille electronics input device |
| WO2022110237A1 (en) * | 2020-11-30 | 2022-06-02 | 华为技术有限公司 | Sensing apparatus, electronic device and control method for electronic device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20160619 |
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| CF01 | Termination of patent right due to non-payment of annual fee |