CN103892992A - Wireless area blind guiding system - Google Patents
Wireless area blind guiding system Download PDFInfo
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- CN103892992A CN103892992A CN201210567174.7A CN201210567174A CN103892992A CN 103892992 A CN103892992 A CN 103892992A CN 201210567174 A CN201210567174 A CN 201210567174A CN 103892992 A CN103892992 A CN 103892992A
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- blind
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- electronic label
- passive rfid
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Abstract
The invention relates to the field of blind guidance, discloses a wireless area blind guiding system which overcomes defects of traditional blind sidewalks and is composed of passive RFIDs and an intelligent blind guiding terminal, and provides a wireless intelligent area disabled assisting and blind guiding system capable of meeting demands of the blind. The wireless area blind guiding system is characterized in that the passive RFIDs are pre-buried on a road to form a radio frequency electric blind sidewalk which can be not seen from the surface of the road. Collected radio frequency blind sidewalk information can be processed through the intelligent blind guiding terminal carried by the blind; the position where the blind is located can be judged according to logic relations. The wireless area blind guiding system can remind the blind of the position and the surroundings where the blind is located through a synthesized voice broadcast form according to data information, guide the advancing direction and guarantee personal safety of the blind in the walking process. Meanwhile, the wireless area blind guiding system has the advantages of being low in device cost and convenient to use.
Description
Technical field
The present invention relates to guide field, especially a kind of intelligent wireless region blind guiding system of helping the disabled.
Background technology
Present stage, crossing guide facility mainly kept straight on by the bar shaped that is layered on road surface and some shape shunting blind way brick forms, and sidewalk for visually impaired people exists problems: build lack of standardization; Damage; The barriers such as middle live wire bar, guideboard, news-stand; Bicycle, goods etc. take seriously; Sidewalk for visually impaired people does not connect.Just because of there is so numerous problem, blind person dare not use sidewalk for visually impaired people, still uses blind rod spy to strike footpath by conventional approach and walks bicycle lane, bring very large personal safety problem like this to them.
Some novel guide facilities, as still under test in satellite positioning device, infrared blind guiding device etc., exist technology immature, the problems such as equipment cost height, fail to be used widely.Passive RFID radio-frequency technique has been a comparatively ripe technology through development for many years, along with the universal of RFID radio-frequency technique and constantly there is the release of the technical scheme of advanced function, make the miniaturization of RFID radio-frequency technique, the realization that refreshes of high-speed data become possibility, RFID wireless radiofrequency label information is abundant simultaneously, uses extensively reliable.
Summary of the invention
The object of the invention is to propose one and can realize the intelligent wireless region blind guiding system of helping the disabled, overcome the shortcoming of traditional sidewalk for visually impaired people and people and be interrupted and guide information poor of the sidewalk for visually impaired people facility causing, use electronic technology means to providing multi-functional guide depending on residual walking along the street person, build a set of low cost, high efficiency intelligent blind path system.
Wireless zone blind guiding system of the present invention can be applied in the large-scale public places such as community, park, exhibition center, scenic spot, fair, is made up of passive RFID electronic label and intelligent blind-guiding terminal.On road, bury in advance passive RFID electronic label, as buried Information sign thing, form an invisible less radio-frequency electronic blind way.The instrument of the exploration sidewalk for visually impaired people that intelligent blind-guiding terminal is carried as blind person, the electronic blind way that coordinates passive RFID to form has formed the basic intelligent wireless region blind guiding system of helping the disabled.Intelligent blind-guiding terminal comprises passive RFID electronic label reader, can resolve the content of passive electronic label in sidewalk for visually impaired people, in order to judge coordinate and the direction of blind person position, by voice messages such as internal algorithm synthesising position, directions, lead blind person to walk in correct direction, blind person is guided to destination.Its workflow is as follows:
1) passive RFID electronic label of activation sidewalk for visually impaired people;
2) judge that whether passive RFID electronic label content is effective, if effective information carries out next step, otherwise to the 9th step;
3) read the information of passive RFID electronic label;
4) information of parsing passive RFID electronic label;
5) judge whether to comprise positional information, be, carry out next step; No, to the 7th step;
6) information of resolving is positional information, according to prompting search data base synthesising position suggestion voice;
7) judge whether to comprise directional information, be, carry out next step; No, to the 9th step;
8) information of resolving is directional information, according to prompting search data base compound direction suggestion voice;
9) working cycle finishes.
Intelligent blind-guiding terminal is made up of processor unit, radio circuit unit, radio-frequency (RF) power amplification unit, radio-frequency antenna unit, speech chip unit, voice power amplifier and loudspeaker unit, battery etc.
The intelligent blind-guiding terminal of the exploration sidewalk for visually impaired people that applicable blind person carries, surface structure can be straight-bar type blind man's stick (is applicable to club of common museum and leases application), folding blind man's stick (be applicable to individual and be convenient for carrying use), can be also handset structure, and the walking along the street guiding that offers blind person is used.Intelligent blind-guiding terminal uses less radio-frequency to echo technology, searches sidewalk for visually impaired people radio frequency mark, and obtains relevant information, after fast processing, converts corresponding loudness, tone or voice signal to, informs end user by earphone and speaker, realizes guide function.The phonetic code that intelligent blind-guiding terminal also can be obtained by scene is converted to and is informed accordingly voice by chip, and notifies end user by portable sound equipment.Adopt topologies to design its working cycle and state, can make the Energy Intensity Reduction of intelligent blind-guiding terminal to very low level, extend the service time of battery of intelligent blind-guiding terminal, reduce blind person's use cost.
Intelligent blind-guiding terminal possesses following feature:
1) there is the function to passive RFID electronic label decoding, can decode to the passive RFID electronic label condition code being obtained by LF communication demodulation, to obtain the data of normal format, solve in blind person's daily life position and direction impalpable, the problem that zone of action is limited, offers friend's blind person " electronic eye " function.
2) by the direction difference of blind person's walking, send different messages; By the different speeds of travel and demand, the repetition giving out information or ignore; Listen to custom according to blind person and select ear type or clipping; Realize Chinese, the different languages prompt tones such as English.
3) according to the information requirement of different venues, road, the internal memory of intelligent blind-guiding terminal is realized to real-time update by specific wireless apparatus at the scene, guarantee that same intelligent blind-guiding terminal can be applied in various occasions.
4) have external communication function, can communicate by letter with chipspeech by interface, the synthetic information of voice prompt needing also plays to blind person's use.
5) have electric quantity detection function, the battery that can use system power supply carries out electric weight detection, and in the time of low electric weight, synthetic low electric weight alarm voice, prompting user charges in time.
When passive RFID electronic label uses, need not power, anti-electromagnetic interference capability is strong, and environmental change is little on its impact, can possess the feature such as anti-rainwater, silt covering, is particularly suitable for being embedded in underground formation wireless electron sidewalk for visually impaired people.It is shorter that common passive RFID electronic label information is transmitted distance, but by strengthening the power of intelligent blind-guiding terminal and selecting suitable electronic devices and components, can realize the transmission range of 2-3 rice, meets actual needs.
The sequence of different RF ID radio frequency sidewalk for visually impaired people, by the vector correlation establishment voice messaging code of its received code.Use systems soft ware scene to be realized to the topological calculation process of different scenes, export the voice messaging of informing of hommization.Use nearly electric field transmission technology to realize on-the-spot interchange to the data in different application field.
The invention has the advantages that: the intelligent wireless region that provides a set of blind person of meeting the to require blind guiding system of helping the disabled, lays an invisible electronic blind way, guarantee blind person personal safety in the process of walking.Meanwhile, it is low that this cover system has equipment cost, and construction can be laid in the process of paving the way simultaneously, advantage easy to use.
Accompanying drawing explanation
Fig. 1 is intelligent wireless guide terminal hardware structure chart
Fig. 2 is wireless zone blind guiding system workflow diagram
The specific embodiment
Describe the present invention in detail below with reference to accompanying drawing.
The intelligent wireless of the present invention region blind guiding system of helping the disabled forms by being embedded in electronic blind way and intelligent blind-guiding terminal two parts that underground passive RFID electronic label forms.Passive RFID radio-frequency (RF) tag, as buried information navigation mark, forms an invisible electronic blind way, and each passive label has comprised specific position and directional information, by intelligent blind-guiding terminal activation work.Intelligent blind-guiding terminal is each passive electronic label information in reading on the way, passes through internal algorithm synthetic speech information according to position and directional information wherein, by earphone or loudspeaker output, leads blind person to advance.
With reference to figure 1, intelligent blind-guiding terminal is made up of processor unit (17), radio circuit unit (11), radio-frequency (RF) power amplification unit (12), radio-frequency antenna unit (13), speech chip unit (14), voice power amplifier and loudspeaker unit (15), battery (16) etc.Processor adopting be the ATMEGA32L single-chip microcomputer of atmel corp, this chip has 32K byte FLASH, the RAM of 2K byte, the EEPROM of 1K byte; The size of software code should be controlled at 32K, and variable used and storehouse should be less than 2K.
With reference to figure 2, wireless zone blind guiding system workflow is as follows:
1) passive RFID electronic label of activation sidewalk for visually impaired people;
2) judge that whether passive RFID electronic label content is effective, if effective information carries out next step, otherwise to the 9th step;
3) read the information of passive RFID electronic label;
4) information of parsing passive RFID electronic label;
5) judge whether to comprise positional information, be, carry out next step; No, to the 7th step;
6) information of resolving is positional information, according to prompting search data base synthesising position suggestion voice;
7) judge whether to comprise directional information, be, carry out next step; No, to the 9th step;
8) information of resolving is directional information, according to prompting search data base compound direction suggestion voice;
9) working cycle finishes.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improves etc., within all should being included in protection scope of the present invention.
Claims (5)
1. wireless zone blind guiding system, is made up of passive RFID electronic label and intelligent blind-guiding terminal, and its workflow is as follows:
1) passive RFID electronic label of activation sidewalk for visually impaired people;
2) judge that whether passive RFID electronic label content is effective, if effective information carries out next step, otherwise to the 9th step;
3) read the information of passive RFID electronic label;
4) information of parsing passive RFID electronic label;
5) judge whether to comprise positional information, be, carry out next step; No, to the 7th step;
6) information of resolving is positional information, according to prompting search data base synthesising position suggestion voice;
7) judge whether to comprise directional information, be, carry out next step; No, to the 9th step;
8) information of resolving is directional information, according to prompting search data base compound direction suggestion voice;
9) working cycle finishes.
2. intelligent blind-guiding terminal according to claim 1 is made up of processor unit (17), radio circuit unit (11), radio-frequency (RF) power amplification unit (12), radio-frequency antenna unit (13), speech chip unit (14), voice power amplifier and loudspeaker unit (15), battery (16).
3. according to claim 1 or intelligent blind-guiding terminal claimed in claim 2, its surface structure can be straight-bar type blind man's stick, folding blind man's stick, can be also handset structure.
4. according to claim 1 or claim 2 or intelligent blind-guiding terminal claimed in claim 3, it is characterized in that:
1) there is the function to passive RFID electronic label decoding;
2) by the direction difference of blind person's walking, send different messages; By the different speeds of travel and demand, the repetition giving out information or ignore; Listen to custom according to blind person and select ear type or clipping; Realize Chinese, the different languages prompt tones such as English;
3) according to the information requirement of different venues, road, the internal memory of intelligent blind-guiding terminal is realized to real-time update by specific wireless apparatus at the scene;
4) have external communication function, can communicate by letter with chipspeech by interface, the synthetic information of voice prompt needing also plays to blind person's use;
5) there is electric quantity detection function, and in the time of low electric weight, synthetic low electric weight alarm voice, prompting user charges in time.
5. the RFID radio frequency sidewalk for visually impaired people that passive RFID electronic label according to claim 1 is laid, is characterized in that the sequence of different RF ID radio frequency sidewalk for visually impaired people, by the vector correlation establishment voice messaging code of its received code.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210567174.7A CN103892992A (en) | 2012-12-25 | 2012-12-25 | Wireless area blind guiding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210567174.7A CN103892992A (en) | 2012-12-25 | 2012-12-25 | Wireless area blind guiding system |
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| CN103892992A true CN103892992A (en) | 2014-07-02 |
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| CN201210567174.7A Pending CN103892992A (en) | 2012-12-25 | 2012-12-25 | Wireless area blind guiding system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016112557A1 (en) * | 2015-01-16 | 2016-07-21 | 深圳市前海安测信息技术有限公司 | Electronic tag-based indoor guidance system for the blind, and method therefor |
| CN107883960A (en) * | 2017-10-31 | 2018-04-06 | 西安科锐盛创新科技有限公司 | Blind-guiding method |
-
2012
- 2012-12-25 CN CN201210567174.7A patent/CN103892992A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016112557A1 (en) * | 2015-01-16 | 2016-07-21 | 深圳市前海安测信息技术有限公司 | Electronic tag-based indoor guidance system for the blind, and method therefor |
| CN107883960A (en) * | 2017-10-31 | 2018-04-06 | 西安科锐盛创新科技有限公司 | Blind-guiding method |
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Application publication date: 20140702 |