CN205007223U - Obstacle avoidance device for blind persons - Google Patents
Obstacle avoidance device for blind persons Download PDFInfo
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- CN205007223U CN205007223U CN201520711830.5U CN201520711830U CN205007223U CN 205007223 U CN205007223 U CN 205007223U CN 201520711830 U CN201520711830 U CN 201520711830U CN 205007223 U CN205007223 U CN 205007223U
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Abstract
The utility model discloses an obstacle avoidance device for blind persons, including MCU and respectively with survey barrier module, reminder module and real -time clock module that MCU connects, its characterized in that survey the barrier module and release human infrared module and ultrasonic module including heat, ultrasonic module include with MCU connects and is used for amplifying the transmission drive module of the square wave that MCU sent and with transmission drive module connects and is used for sending hyperacoustic transmitting probe, still including being used for the receipt hyperacoustic receiving transducer that ultrasonic wave that the transmitting probe sent reflected and one end and receive probe connection's receipt detection module, receive the detection module other end with MCU connects. The utility model provides an obstacle avoidance device for blind persons can give the user through the quick accurate detection barrier of ultrasonic wave and infrared detection technology and human or other animals and feedback information, overall technology simple structure moreover, and manufacturing cost is relatively low, and the facilitate promotion is used.
Description
Technical field
This utility model relates to blind person's guiding device technical field, particularly a kind of blind person's fault avoidnig device.
Background technology
Blind person is due to visual impairment, a subject matter in life is that action is limited, in the process of walking due to cannot sight state before Timeliness coverage body and suitable judgement cannot be made, there is the sight of barrier or pedestrian and other animals in such as front, when lacking initiative information feedback, tend collides or is tripped, and therefore walking safety does not ensure.Understand the problem that direct of travel obstacle information is blind person's first concern, in actual life, blind person finds out obstacle information by common blind man's stick, but this method inefficiency and expend muscle power; And seeing-eye dog cycle of training and the laundering period is longer, cost is higher, use general, be therefore badly in need of a kind of portable blind person's fault avoidnig device of research.
Occurred at present adopting laser, radar, microwave etc. to survey the guide fault avoidnig device of barrier method, although the survey barrier degree of accuracy of this device is high, actualizing technology is complicated, expensive, applies less.
Utility model content
This utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, an object of the present utility model is to propose the attainable blind person's fault avoidnig device of a kind of low cost, can detecting obstacles thing and human body or other animals feed back to user fast and accurately.
For achieving the above object, this utility model on the one hand embodiment proposes a kind of blind person's fault avoidnig device, described blind person's fault avoidnig device comprises MCU and the survey that is connected with described MCU respectively hinders module, reminding module and real-time clock module, it is characterized in that described survey barrier module comprises heat and releases human body infrared module and ultrasonic wave module, described ultrasonic wave module comprises and to be connected with described MCU and for the transmitting driver module that amplifies the square wave that described MCU sends and be connected for sending hyperacoustic transmitting probe with described transmitting driver module, also comprise hyperacoustic receiving transducer that the ultrasonic reflections that sends for receiving described transmitting probe returns and the reception detection module that one end is connected with described receiving transducer, the described reception detection module other end is connected with described MCU.
According to blind person's fault avoidnig device that this utility model embodiment proposes, heat is released human body infrared module and can be detected human body within the scope of certain distance or animal infrared signal and export MCU to, when the infrared signal exported changes, MCU just judges there is row human or animal in the distance range of front, MCU sends hint instructions to reminding module, and reminding module can send the appreciable information of blind person to blind person, MCU can produce square-wave signal and amplify through launching driver module in addition, square-wave signal is excited into after ultrasound wave to spatial emission sinusoidal ultrasound wave signal by transmitting probe, open overtime timer and ultrasonic signal transmitting-receiving time timer by real-time clock module simultaneously, if ultrasonic signal does not run into barrier within the scope of certain distance, then receiving transducer can not receive this ultrasonic signal, overtime timer time-out, then judge front clear, if ultrasonic signal runs into barrier within the scope of certain distance, be reflected back, receiving transducer then receives the ultrasonic signal that reflects and forms square-wave signal after excitation and exports to reception detection module, square-wave signal receives detection module output pulse signal to MCU through ultrasound wave, according to pulse signal, MCU judges that there is barrier in front, then stop overtime timer and ultrasonic signal transmitting-receiving time timer, calculate the ultrasonic signal transmitting-receiving time, again according to ultrasonic velocity dyscalculia thing distance, and command prompt module sends the appreciable information of blind person to blind person, can take measures in time to avoid occurring with other pedestrian impacts or being tripped by barrier by information blind person.
According to this utility model embodiment, described reminding module comprises the sound module for voice message, the shock module for vibration prompt and the light modules for shadow prompting.Voice module can point out blind person's preceding object principle condition by sound, shock module produces vibration can point out blind person's preceding object principle condition information, voice module and light modules allow the front personnel advanced also can know advancing of blind person by information simultaneously, take measures to dodge in time.
Further, described sound module comprises the voice synthetic module be connected with described MCU and the dio Output Modules be connected with described voice synthetic module.
Further, described dio Output Modules comprises outside speaker or earphone.Outside speaker can point out blind person and front personnel simultaneously, and earphone can reduce the interference of external noises to suggestion voice.
Further, described dio Output Modules also can be used for playing real-time time information.In usual situation, even if be not at traveling process or when not having complaint message to point out, dio Output Modules also can to take the time information by playing real time clock information, or plays alarm clock information when setting timer clock.
According to a specific embodiment of the present utility model, described blind person's fault avoidnig device also comprises and to be connected with described MCU and for the temperature measurement module of testing environment temperature.According to temperature measurement module, MCU will detect that ambient temperature corrects ultrasonic velocity value, thus can improve the accuracy of dyscalculia thing distance.
According to a specific embodiment of the present utility model, described ultrasonic wave module is at least 3, and at least 3 described ultrasonic wave module form a face.Hyperacoustic effective search coverage can be improved by the ultrasonic wave module of at least 3 on one face, reduce detection blind area.
According to a specific embodiment of the present utility model, described heat is released human body infrared module and is at least 3, and at least 3 described heat release human body infrared module generation face.Release human body infrared module by the heat of at least 3 on one face can improve heat and release human body infrared effective search coverage, reduce detection blind area.
Blind person's fault avoidnig device that this utility model provides, can conveniently guide blind person in traveling process, find preceding object thing or pedestrian, and by obtaining information to take effective workaround, avoids colliding or being tripped by barrier; In addition this blind person fault avoidnig device adopt ultrasonic listening obstacle distance and adopt heat release human body infrared detection human body or animal infrared signature to judge, point out blind person's correlation detection object information after intelligence automatic decision can be realized.
Accompanying drawing explanation
Fig. 1 is the blind person's fault avoidnig device structural representation according to this utility model embodiment;
Fig. 2 is the workflow diagram of the blind person's fault avoidnig device according to this utility model embodiment.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining this utility model, and can not be interpreted as restriction of the present utility model.
Below with reference to the accompanying drawings blind person's fault avoidnig device that this utility model embodiment proposes is described, as shown in Figure 1, blind person's fault avoidnig device comprises MCU and the survey that is connected with described MCU respectively hinders module, reminding module and real-time clock module, it is characterized in that described survey barrier module comprises heat and releases human body infrared module and ultrasonic wave module, described ultrasonic wave module comprise to be connected with described MCU and for amplify described MCU send the ultrasonic emitting driver module of square wave and be connected for sending hyperacoustic transmitting probe with described transmitting driver module, also comprise hyperacoustic ultrasound wave receiving transducer that the ultrasonic reflections that sends for receiving described transmitting probe returns and the ultrasound wave that one end is connected with described ultrasound wave receiving transducer receives detection module, described ultrasound wave receives the detection module other end and is connected with described MCU.
According to the present embodiment propose blind person's fault avoidnig device work process as shown in Figure 2, after device initializes, whether heat releases human body infrared module detection front human body or animal, if there is human or animal within the scope of certain distance, then the infrared ray of human body or animal radiation is released the absorption of human body infrared module by heat and sends specific voltage signal to MCU, and MCU command prompt module sends cue and blind person or front row human or animal can be pointed out to take measures to dodge, MCU can produce 40KHz square-wave signal and amplify through launching driver module in addition, square-wave signal to be excited into after ultrasound wave to spatial emission 40KHz sinusoidal ultrasound wave signal by ultrasonic emitting probe, open overtime timer and ultrasonic signal transmitting-receiving time timer by real-time clock module simultaneously, if ultrasonic signal does not run into barrier within the scope of certain distance, then ultrasound wave receiving transducer can not receive this ultrasonic signal, overtime timer time-out, then judge front clear, if ultrasonic signal runs into barrier within the scope of certain distance, be reflected back, ultrasound wave receiving transducer then receives the ultrasonic signal that reflects and is excited rear formation 40KHz square-wave signal and exports to reception detection module, 40KHz square-wave signal receives detection module output pulse signal to MCU through ultrasound wave, according to pulse signal, MCU judges that there is barrier in front, then stop overtime timer and ultrasonic signal transmitting-receiving time timer, and calculate the ultrasonic signal transmitting-receiving time, again according to ultrasonic velocity dyscalculia thing distance, and command prompt module sends the appreciable information of blind person to blind person, can take measures in time to avoid occurring with other pedestrian impacts or being tripped by barrier by information blind person.
According to this utility model embodiment, as shown in Figure 1, described reminding module comprises the sound module for voice message, the shock module for vibration prompt and the light modules for shadow prompting.Voice module can point out blind person's preceding object principle condition by sound, shock module produces vibration can point out blind person's preceding object principle condition information, voice module and light modules allow the front personnel advanced also can know advancing of blind person by information simultaneously, take measures to dodge in time.
A specific embodiment, as shown in Figure 1, described sound module comprises the voice synthetic module be connected with described MCU and the dio Output Modules be connected with described voice synthetic module.Concrete, described dio Output Modules comprises outside speaker or earphone.Outside speaker can point out blind person and front personnel simultaneously, and earphone can reduce the interference of external noises to suggestion voice.Concrete, described dio Output Modules also can be used for playing real-time time information.In usual situation, even if be not at traveling process or when not having complaint message to point out, dio Output Modules also can to take the time information by playing real time clock information, or plays alarm clock information when setting timer clock.
A specific embodiment, as shown in Figure 1, described blind person's fault avoidnig device also comprises and to be connected with described MCU and for the temperature measurement module of testing environment temperature.As shown in Figure 2, according to temperature measurement module, MCU will detect that ambient temperature corrects ultrasonic velocity value, thus can improve the accuracy of dyscalculia thing distance.
According to a specific embodiment of the present utility model, described ultrasonic wave module is at least 3, and at least 3 described ultrasonic wave module form a face.Hyperacoustic effective search coverage can be improved by the ultrasonic wave module of at least 3 on one face, reduce detection blind area.
According to a specific embodiment of the present utility model, described heat is released human body infrared module and is at least 3, and at least 3 described heat release human body infrared module generation face.Release human body infrared module by the heat of at least 3 on one face can improve heat and release human body infrared effective search coverage, reduce detection blind area.
Blind person's fault avoidnig device that above embodiment provides can conveniently guide blind person in traveling process, find preceding object thing or pedestrian, and by obtaining information to take effective workaround, avoids colliding or being tripped by barrier; In addition due to this blind person fault avoidnig device adopt ultrasonic listening obstacle distance and adopt heat release human body infrared detection human body or animal infrared signature to judge, blind person's correlation detection object information is pointed out after can realizing intelligence automatic decision, utilize speech synthesis technique, vibrations technology and lighting technology, realize obstacle information feedback and action guide, initiatively can be taken measures to dodge also can send to row human or animal by prompting blind person and point out requirement to dodge.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " one end ", the feature of " other end " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in this utility model can be understood as the case may be.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (8)
1. blind person's fault avoidnig device, comprise MCU and the survey that is connected with described MCU respectively hinders module, reminding module and real-time clock module, it is characterized in that described survey barrier module comprises heat and releases human body infrared module and ultrasonic wave module, described ultrasonic wave module comprises and to be connected with described MCU and for the transmitting driver module that amplifies the square wave that described MCU sends and be connected for sending hyperacoustic transmitting probe with described transmitting driver module, also comprise hyperacoustic receiving transducer that the ultrasonic reflections that sends for receiving described transmitting probe returns and the reception detection module that one end is connected with described receiving transducer, the described reception detection module other end is connected with described MCU.
2. blind person's fault avoidnig device as claimed in claim 1, is characterized in that described reminding module comprises the sound module for voice message, the shock module for vibration prompt and the light modules for shadow prompting.
3. blind person's fault avoidnig device as claimed in claim 2, is characterized in that described sound module comprises the voice synthetic module be connected with described MCU and the dio Output Modules be connected with described voice synthetic module.
4. blind person's fault avoidnig device as claimed in claim 3, is characterized in that described dio Output Modules comprises outside speaker or earphone.
5. blind person's fault avoidnig device as claimed in claim 3, is characterized in that described dio Output Modules can be used for playing real-time time information.
6. the blind person's fault avoidnig device as described in as arbitrary in claim 1 to 5, characterized by further comprising and to be connected with described MCU and for the temperature measurement module of testing environment temperature.
7. blind person's fault avoidnig device as claimed in claim 6, it is characterized in that described ultrasonic wave module is at least 3, at least 3 described ultrasonic wave module form a face.
8. blind person's fault avoidnig device as claimed in claim 6, it is characterized in that described heat is released human body infrared module and is at least 3, at least 3 described heat release human body infrared module generation face.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520711830.5U CN205007223U (en) | 2015-09-15 | 2015-09-15 | Obstacle avoidance device for blind persons |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520711830.5U CN205007223U (en) | 2015-09-15 | 2015-09-15 | Obstacle avoidance device for blind persons |
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| CN205007223U true CN205007223U (en) | 2016-02-03 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030494A (en) * | 2015-09-15 | 2015-11-11 | 桂林电子科技大学 | Blind people obstacle avoiding device and obstacle avoiding prompt method |
| CN105997448A (en) * | 2016-04-30 | 2016-10-12 | 中国海洋大学 | Ultrasonic echo positioning blindness-guiding instrument of frequency-domain projection type |
| CN107049718A (en) * | 2017-05-11 | 2017-08-18 | 英华达（上海）科技有限公司 | Obstacle avoidance apparatus |
| CN107440294A (en) * | 2017-07-24 | 2017-12-08 | 黄宇翔 | Intelligent antitracking hair fastener |
| CN109102718A (en) * | 2018-09-07 | 2018-12-28 | 广东小天才科技有限公司 | Smart watch, and anti-collision reminding method and device based on smart watch |
| CN111190239A (en) * | 2020-03-16 | 2020-05-22 | 深圳市信威电子有限公司 | People number detection sensor and people number detection method |
-
2015
- 2015-09-15 CN CN201520711830.5U patent/CN205007223U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030494A (en) * | 2015-09-15 | 2015-11-11 | 桂林电子科技大学 | Blind people obstacle avoiding device and obstacle avoiding prompt method |
| CN105997448A (en) * | 2016-04-30 | 2016-10-12 | 中国海洋大学 | Ultrasonic echo positioning blindness-guiding instrument of frequency-domain projection type |
| CN107049718A (en) * | 2017-05-11 | 2017-08-18 | 英华达（上海）科技有限公司 | Obstacle avoidance apparatus |
| CN107049718B (en) * | 2017-05-11 | 2020-02-21 | 英华达（上海）科技有限公司 | Obstacle avoidance device |
| CN107440294A (en) * | 2017-07-24 | 2017-12-08 | 黄宇翔 | Intelligent antitracking hair fastener |
| CN109102718A (en) * | 2018-09-07 | 2018-12-28 | 广东小天才科技有限公司 | Smart watch, and anti-collision reminding method and device based on smart watch |
| CN111190239A (en) * | 2020-03-16 | 2020-05-22 | 深圳市信威电子有限公司 | People number detection sensor and people number detection method |
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Granted publication date: 20160203 Termination date: 20160915 |
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| CF01 | Termination of patent right due to non-payment of annual fee |