CN101840647A - Method and device for displaying brailles by deformation of magnetic control silica gel - Google Patents
Method and device for displaying brailles by deformation of magnetic control silica gel Download PDFInfo
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- CN101840647A CN101840647A CN 201010132557 CN201010132557A CN101840647A CN 101840647 A CN101840647 A CN 101840647A CN 201010132557 CN201010132557 CN 201010132557 CN 201010132557 A CN201010132557 A CN 201010132557A CN 101840647 A CN101840647 A CN 101840647A
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Abstract
The invention provides a method and a device for displaying brailles by the deformation of magnetic control silica gel. The device comprises a contact layer, a drive layer and a circuit layer, wherein the contact layer adopts a silicon rubber material as a deformation component, a permanent magnet material is embedded into the contact layer, the direction of the magnetic pole of an electromagnet is controlled by the circuit layer, and a permanent magnet embedded into the silica gel is subject to upward repulsive force or downward attractive force, thereby controlling braille contacts to be switched between two states which are a convex state and a smooth state. The invention has simple structure, low material cost, high durability and easy large-scale production and can be applied to various kinds of blind person equipment which needs to display the brailles.
Description
Technical field
The invention belongs to the Braille reading field of tool, especially the Braille point word display field
Background technology
Along with the develop rapidly of computer and network technologies, the mode of propagating books and periodicals with forms such as e-book has obtained popularizing widely and using.Yet the graphic alphanumeric display of common computing machine and electronic reading equipment only can be used by orthoscopic crowd.How provide reliable Braille point word display just to become a very important research direction with the blind person for visually impaired person.
The key of Braille point word display is to make the braille contact to change between projection and smooth two states, thereby shows different braille texts.
Common Braille display technique mainly is to come control material deformation by magnetic, electricity or temperature, thus the conversion of control braille contact between projection and smooth two states.
Wherein can be divided into again by making the stressed Braille point word display and the Braille point word display that uses intelligent shape-changing material that the traditional mechanical structure of deformation takes place of material.
Patent No. CN03256935.1 and patent No. CN200510105242.8 belong to the former.They all are to utilize the stepped piezoelectric patches that is arranged in parallel to control moving of braille contact.But all there is complicated in mechanical structure in this type of Braille point word display, and movable part is more, and integrally-built intensity is low, the replacing inconvenience of piezoelectric patches, production procedure complexity, the more high deficiency of part cost of manufacture and difficulty of processing.
Patent No. CN00226103.0 and patent No. CN 200810047306.7 adopt the temperature control deformation Braille point word display of SMA (Shape Memory Alloy) marmem as shape-changing material.The both raises the memory alloy material temperature by electric current, makes material that directed deformation take place, thereby makes braille contact projection.Wherein patent No. CN00226103.0 is after energising makes the contact projection, if stop power supply, memorial alloy can't be pulled up a horse and be restored to the original state automatically, and only is softening gradually along with the reduction of temperature, the user needs initiatively the contact to be pressed, and this does not meet the functional requirement of Braille point word display.Patent No. CN200810047306.7, makes the union piece distortion easily and causes parts damages if running for a long time will cause the alloy sheet temperature too high by the heating of driving circuit control round trip memorial alloy sheet, has reduced the durability of equipment.The cost of shape memory alloy material is higher simultaneously, is an impediment to popularizing and promoting of Braille point word display.
Along with the prosperity of national economy, help further developing of blind cause, Braille point word display becomes the indispensable electronic product of the blind person masses under the information age all the more.
Summary of the invention
The present invention proposes a kind of magnetic control deformation Braille display packing and device that uses silica gel as shape-changing material.Big in order to overcome existing Braille display device production difficulty, material cost height, deficiencies such as poor durability, this invention uses chemical property stable, plasticity is good, and the physical strength height is with low cost, the setting silastic material of producing is as deformable member easily, embed permanent magnetic material therein, the pole orientation of the Current Control electromagnet by flowing through coil makes the directed deformation of silica gel, thereby move, move down on the control braille contact, conversion rapidly between projection and smooth two states.
The present invention is achieved through the following technical solutions:
One, display device structure
Fig. 1 is the general structure of this Braille point word display.Wherein 1 is the upper strata watchcase of display.2 is contact holes, and the braille contact will be by rising on this hole or descending.The size of contact holes is arranged with reference to State Standard of the People's Republic of China GB/T15720-1995 Chinese braille standard.3 is layer of silica gel, and the locking pin of evenly being arranged by the layer of silica gel that has contact structure of particular mold production is fixed on the substrate.4 is the contact structure on the layer of silica gel, can be divided into contact head, deformation part and permanent magnet part as shown in Figure 2, and when display moved, contact structure can move up and down under the effect of magnetic force within the specific limits.5 is Drive Layer, and the related electric control parts are arranged above.6 is the solenoid of ribbon core, can be by the magnetic pole of control coil sense of current control electromagnet.7 and 8 are respectively circuit layer and relevant electric-controlled parts.9 is the base plate of display.
This display needs outside braille text signal source and power supply when work
Two, drive principle
When the braille text signal that receives from the outside, the Braille storehouse that embeds on the circuit board at first is converted into the control signal of contact, is sent to relevant contact control module (among Fig. 1 8) via the signal bus of circuit again.
The contact control module will be according to the power supply of corresponding coil on the signal content controlling and driving layer, thus the magnetic pole of control electromagnet.
The permanent magnet that embeds in the layer of silica gel upper contact structure will be subjected to repulsive force upwards or downward attractive force because of electromagnet, thereby switch between projection and formation state.
Silicon rubber is a kind of material that is easy to low production cost, its stable chemical property of while, and outstanding deformability and powerful durability make it become the desirable shape-changing material of Braille point word display.The present invention makes it that directed deformation can take place under the acting force of electromagnet by embed permanent magnet in setting silica gel.Piezoelectric ceramics or higher magnetic control that intellectual material had or the automatically controlled deformability of some other production difficulty have been had with regard to the combiner that makes silica gel and permanent magnet like this.The present invention can reduce the dependence of current Braille display device to expensive material greatly, simplifies the production technology of Braille display device, effectively reduces the cost of Braille display device, for Braille display device universal provides technical support.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural drawing of this Braille point word display.
Fig. 2 is the driving synoptic diagram of this Braille point word display.
Embodiment
In Fig. 2, contact head (1), point of fixity (6), deformation part (7) all are the silica gel materials that fuses.Wherein point of fixity (6) is fixed on the layer of silica gel substrate (5) by locking pin.Permanent magnet (8) is embedded in the silica gel material.Contact head (1) is in contact on the display casing (3) and portals in (2), can guarantee that like this contact is merely able to move up and down.Toll bar (4) is only opened when the display refreshing braille, sets back after braille refreshes finishing, and the protruding place of contact head is fixed on current location.
In embodiment illustrated in fig. 2, when certain contact point unit received land signals, its corresponding coil (10) will be by clockwise electric current, and the magnetic pole of electromagnet is gone down south north on being at this moment, thereby the permanent magnet (8) that is embedded in colloidal silica inside is produced repulsive force, the contact is moved up.For opening, finish to set back after moving in the contact in the process that toll bar (4) moves on the contact.After toll bar sets back, coil (10) will stop energising.
When certain contact point unit received smooth signal, its corresponding coil (10) will be by anticlockwise electric current, and this moment, the magnetic pole of electromagnet was a up north and down south, thereby the permanent magnet (8) that is embedded in colloidal silica inside is produced attractive force, and the contact is moved down.Toll bar (4) is opened in the process that the contact moves down, and finishes setting back after moving in the contact.After toll bar sets back, coil (10) will stop energising.
Claims (2)
1. Braille point word display, comprise contact layer, Drive Layer and circuit layer, it is characterized in that: circuit layer can be converted to control signal with coming from outside braille text signal, the pole orientation of electromagnet on the controlling and driving layer, thus the braille of control contact layer shows.
2. according to right 1 described Braille point word display, it is characterized in that: contact layer adopts silastic material as deformable member, embed permanent magnetic material therein, pole orientation by circuit layer control electromagnet, make the embedded permanent magnet of silica gel be subjected to repulsive force upwards or downward attractive force, thereby switch control braille contact between projection and smooth two states.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010132557 CN101840647A (en) | 2010-03-26 | 2010-03-26 | Method and device for displaying brailles by deformation of magnetic control silica gel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010132557 CN101840647A (en) | 2010-03-26 | 2010-03-26 | Method and device for displaying brailles by deformation of magnetic control silica gel |
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| CN101840647A true CN101840647A (en) | 2010-09-22 |
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| CN 201010132557 Pending CN101840647A (en) | 2010-03-26 | 2010-03-26 | Method and device for displaying brailles by deformation of magnetic control silica gel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176293A (en) * | 2011-03-12 | 2011-09-07 | 张乐 | Dot-matrix magnetic control convex point braille displayer |
| CN104517505A (en) * | 2014-12-11 | 2015-04-15 | 郑遥 | Electronic book for blind person |
| CN106781881A (en) * | 2017-01-18 | 2017-05-31 | 四川大学 | A kind of dragging type braille point shows device and component reusing technology method |
| CN106781880A (en) * | 2016-12-30 | 2017-05-31 | 浙江八瓦文化创意发展有限公司 | A kind of braille changes finger ring |
| CN112166462A (en) * | 2018-04-24 | 2021-01-01 | 华莱士·皮特 | Magnetically programmable actuator for haptic information transfer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1118030C (en) * | 2000-03-17 | 2003-08-13 | 赵宇 | Braille generation method and its reader/typewriter |
| CN1525381A (en) * | 2003-02-24 | 2004-09-01 | 联想(北京)有限公司 | Holding mechanism in braille lattice character displaying and reading apparatus and operating method thereof |
| CN101261775A (en) * | 2008-04-14 | 2008-09-10 | 华中科技大学 | A Braille point word display |
| CN201289693Y (en) * | 2008-09-27 | 2009-08-12 | 浙江科技学院 | Blindman text reader |
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2010
- 2010-03-26 CN CN 201010132557 patent/CN101840647A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1118030C (en) * | 2000-03-17 | 2003-08-13 | 赵宇 | Braille generation method and its reader/typewriter |
| CN1525381A (en) * | 2003-02-24 | 2004-09-01 | 联想(北京)有限公司 | Holding mechanism in braille lattice character displaying and reading apparatus and operating method thereof |
| CN101261775A (en) * | 2008-04-14 | 2008-09-10 | 华中科技大学 | A Braille point word display |
| CN201289693Y (en) * | 2008-09-27 | 2009-08-12 | 浙江科技学院 | Blindman text reader |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176293A (en) * | 2011-03-12 | 2011-09-07 | 张乐 | Dot-matrix magnetic control convex point braille displayer |
| CN102176293B (en) * | 2011-03-12 | 2014-09-10 | 张乐 | Dot-matrix magnetic control convex point braille displayer |
| CN104517505A (en) * | 2014-12-11 | 2015-04-15 | 郑遥 | Electronic book for blind person |
| CN106781880A (en) * | 2016-12-30 | 2017-05-31 | 浙江八瓦文化创意发展有限公司 | A kind of braille changes finger ring |
| CN106781881A (en) * | 2017-01-18 | 2017-05-31 | 四川大学 | A kind of dragging type braille point shows device and component reusing technology method |
| CN112166462A (en) * | 2018-04-24 | 2021-01-01 | 华莱士·皮特 | Magnetically programmable actuator for haptic information transfer |
| JP2021522547A (en) * | 2018-04-24 | 2021-08-30 | ピッツ，ウォレス | Magnetically programmable actuator for tactile transmission of information |
| US11436943B2 (en) | 2018-04-24 | 2022-09-06 | Polymer Braille Inc. | Magnetically programmable actuators for tactile conveyance of information |
| JP7383265B2 (en) | 2018-04-24 | 2023-11-20 | ピッツ，ウォレス | Magnetically programmable actuators for tactile transmission of information |
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Open date: 20100922 |