CN109498383B - Intelligent blind guiding crutch - Google Patents
Intelligent blind guiding crutch Download PDFInfo
- Publication number
- CN109498383B CN109498383B CN201811589372.7A CN201811589372A CN109498383B CN 109498383 B CN109498383 B CN 109498383B CN 201811589372 A CN201811589372 A CN 201811589372A CN 109498383 B CN109498383 B CN 109498383B
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- crutch
- sensor
- rod body
- intelligent blind
- blind guiding
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- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 241001166076 Diapheromera femorata Species 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/06—Walking aids for blind persons
- A61H3/061—Walking aids for blind persons with electronic detecting or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/06—Walking aids for blind persons
- A61H3/068—Sticks for blind persons
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention discloses an intelligent blind guiding crutch 100, which comprises: the intelligent blind guiding crutch comprises a handle 1 and a crutch body 5, and further comprises a hinge four-bar mechanism 10, a sensor 3 and an alarm processing system 2, wherein the hinge four-bar mechanism 10 is arranged in the crutch body 5, the sensor 3 is used for detecting obstacles, and the alarm processing system 2 is electrically connected with the sensor; the hinge four-bar mechanism 10 is provided with an upper bar body 10a, a lower bar body 10b, a left bar body 10c and a right bar body 10d which are mutually hinged into a parallelogram; the left rod body 10c or the right rod body 10d is fixed on the crutch body 5, and the sensor 3 is arranged on the upper rod body 10 a; the lower rod body 10b is positioned at the tail end of the intelligent blind guiding crutch 100 and is parallel to the ground, and the invention is beneficial to enabling the sensor 3 to be parallel to the ground all the time and to perform obstacle detection in the advancing direction.
Description
[ technical field ]
The invention relates to an intelligent blind guiding crutch, in particular to an intelligent blind guiding crutch with an obstacle detection function.
[ background Art ]
A blind guiding crutch is used for guiding the blind on the road, and is generally provided with an obstacle detection sensor and an alarm system.
Referring to Chinese patent publication No. CN103637901A, a blind guiding crutch based on ultrasonic ranging is disclosed, which comprises a crutch rod, an ultrasonic ranging module, a singlechip and an alarm circuit, wherein the ultrasonic ranging module, the singlechip and the alarm circuit are all fixed on the crutch rod, the ultrasonic ranging module is fixed at the front part of the crutch rod and is 160-220 mm away from the tail end of the lower part of the crutch rod, and a part for identifying the direction is arranged at the top of the upper end of the crutch rod; the signal end of the ultrasonic ranging module is connected with the distance detection signal end of the singlechip, and the alarm signal output end of the singlechip is connected with the alarm control signal input end of the alarm circuit. The invention is suitable for reminding the passers-by and the blind when the blind walks.
However, the above-mentioned ultrasonic ranging module of leading blind crutch is fixed on the crutch rod, and this structure has very big defect, for example, the difference of blind person's height and the difference of using leading blind crutch inclination angle custom all probably cause ultrasonic ranging module's detection direction slant sky or ground to can't detect the place ahead and get the barrier.
Thus, there is a need for an improvement over existing intelligent blind-guiding crutches such that the detection module detects obstacles parallel to the ground in the direction of travel.
[ summary of the invention ]
In order to solve the problems, the invention provides an intelligent blind guiding crutch capable of accurately detecting obstacles.
In order to solve the technical problems, the invention adopts the following technical scheme: an intelligent blind-guiding crutch 100 includes: the intelligent blind guiding crutch comprises a handle 1 and a crutch body 5, and further comprises a hinge four-bar mechanism 10, a sensor 3 and an alarm processing system 2, wherein the hinge four-bar mechanism 10 is arranged in the crutch body 5, the sensor 3 is used for detecting obstacles, and the alarm processing system 2 is electrically connected with the sensor; the hinge four-bar mechanism 10 is provided with an upper bar body 10a, a lower bar body 10b, a left bar body 10c and a right bar body 10d which are mutually hinged; the left rod body 10c or the right rod body 10d is fixed on the crutch body 5, and the left rod body 10c, the right rod body 10d, the upper rod body 10a and the lower rod body 10b form a movable parallelogram structure, and the sensor 3 is arranged on the upper rod body 10 a; lower shaft 10b is positioned at the end of intelligent blind guiding crutch 100 and is parallel to the ground.
The further improvement scheme is as follows: the left rod body 10c is fixedly arranged on the crutch body 5, at least one torsion spring 6 is fixedly arranged in the crutch body 5, one end of the torsion spring 6 is abutted against the inner wall of the crutch body 5 or the left rod body 10c, and the other end is abutted against the lower rod body 10b.
The further improvement scheme is as follows: the tail end of the crutch body 5 is provided with a boss 5a, the boss 5a is 90-120 degrees with the crutch body 5, and the hinge connection point of the lower rod body 10b and the left rod body 10c is fixed at the boss 5 a.
The further improvement scheme is as follows: the lower rod body 10b is provided with an elastic pad 4.
The further improvement scheme is as follows: the length of the left rod body is 20-30cm.
The further improvement scheme is as follows: the crutch body 5 is also provided with a hole 5b, the upper rod body 10a protrudes from the hole 5b, and the sensor 3 is fixed on the protruding part of the upper rod body 10 a.
The further improvement scheme is as follows: when the sensor 3 detects an obstacle signal for the first time, the alarm processing system 2 stores the signal, and when the sensor 3 detects the obstacle signal again after 2 to 10 seconds of the crutch body 5 has elapsed without moving, the alarm processing system sends an alarm signal.
The further improvement scheme is as follows: the sensor 3 is a distance sensor, and the alarm processing system 2 receives the feedback signal of the sensor 3 and calculates the distance to the obstacle.
The further improvement scheme is as follows: the alarm processing system 2 is provided with a voice prompt device 4, and the voice prompt device 4 is used for broadcasting the distance between the obstacle and the user.
According to the intelligent blind guiding crutch, the four-bar mechanism is arranged in the crutch body, and the sensor is fixed on the protruding part of the upper rod body, so that compared with the prior art, when a blind person with different heights and different inclination angles of the crutch is used for the intelligent blind guiding crutch, the detection direction of the sensor is always parallel to the ground under the driving of the four-bar mechanism 10, the stability and the reliability of the detection of the sensor obstacle are greatly improved, and the obstacle state is accurately judged; in addition, the twice signal detection mode of the invention has the beneficial function of shielding unnecessary alarms for the blind.
[ description of the drawings ]
FIG. 1 is a schematic perspective view of an intelligent blind guiding crutch of the present invention;
FIG. 2 is a schematic diagram of a four-bar mechanism of the present invention;
FIG. 3 is a partial view of the intelligent blind guiding crutch of the present invention;
FIG. 4 is a schematic view of the operation of the intelligent blind guiding crutch of the present invention;
meaning of reference numerals in the drawings:
100. 1, a handle, 2, a switch, 3, a sensor, 4, an elastic pad, 5, a crutch body, 5a, a boss, 5b and a hole, 6, torsion springs, 10, four-bar mechanisms, 10a, upper bar body, 10b, lower bar body, 10c, left bar body, 10d, right bar body, 20, barrier
Detailed description of the preferred embodiments
Referring to fig. 1, an intelligent blind guiding crutch 100 includes: the walking stick comprises a handle 1 and a walking stick body 5, wherein a sensor 3 for detecting obstacles and an alarm processing system 2 electrically connected with the sensor are arranged in the walking stick body 5, and a switch 2 is arranged on the handle 1. Before the blind person is ready to walk, the switch 2 is turned on, the sensor 3 detects the obstacle in front during the traveling process of the blind person, and the alarm system 2 alarms when receiving the obstacle signal which the blind person cannot pass.
Referring to fig. 2 and 3, the intelligent blind guiding crutch 100 further includes a hinge four-bar mechanism 10 disposed inside the crutch body (5), wherein the hinge four-bar mechanism 10 includes an upper bar body 10a, a lower bar body 10b, a left bar body 10c and a right bar body 10d that are hinged to each other; the left rod body 10c is fixed on the crutch body 5, the left rod body 10c, the right rod body 10d, the upper rod body 10a and the lower rod body 10b form a movable parallelogram structure, the crutch body 5 is further provided with a hole 5b, the upper rod body 10a protrudes from the hole 5b, and the sensor 3 is fixed on the protruding part of the upper rod body 10 a. The lower rod 10b is positioned at the end of the intelligent blind guiding crutch 100 and is parallel to the ground, and the lower rod 10b is provided with an elastic pad 4. Of course, in the embodiment of the present invention, the right rod 10d may be fixed to the crutch body 5, and the left rod 10c may be movable relative to the crutch body 5.
The length of the left rod body 10c in the embodiment of the invention can be in accordance with the spanable height of the blind person, the length is preferably 5-10cm, the left rod body 10c is fixedly arranged on the crutch body 5, a torsion spring 6 is fixedly arranged in the crutch body 5, one end of the torsion spring 6 is abutted against the inner wall of the crutch body 5 or the left rod body 10c, the other end of the torsion spring is abutted against the lower rod body 10b, the tail end of the crutch body 5 is provided with a boss 5a, the boss 5a forms 90-120 degrees with the crutch body 5, and the hinge connection point of the lower rod body 10b and the left rod body 10c is fixed at the boss 5 a. In the embodiment of the invention, the lower rod body 10b is preloaded on the boss 5a by the torsion spring 6, so that the lower rod body 10b is prevented from shaking relative to the crutch body 5.
Referring to fig. 4, the sensor 3 is a distance sensor, and the alarm processing system 2 receives a feedback signal from the sensor 3 and calculates a distance from the obstacle 20. The alarm processing system 2 is provided with voice prompt means for broadcasting the distance of the obstacle 20 from the user.
When the sensor 3 detects the obstacle 20 signal for the first time, the alarm processing system 2 stores the signal, and when the sensor 3 detects the obstacle signal again after 2 to 10 seconds after the crutch body 5 does not move, the alarm processing system sends an alarm signal. In the normal walking process, if objects moving in front of the blind, such as moving pets, automobiles and the like, are usually in a moving state and cannot block the road on which the blind moves, the intelligent blind guiding crutch 100 can effectively reduce the number of alarming times by the implementation of twice signal detection, and can shield unnecessary alarming disturbance for the blind.
According to the intelligent blind guiding crutch 100, the four-bar mechanism 10 is arranged in the crutch body 5, and the sensor 3 is fixed on the protruding part of the upper rod body 10a, so that compared with the prior art, when blind persons with different heights and different inclination angles use the crutch, the detection direction of the sensor 3 is always parallel to the ground under the driving of the four-bar mechanism 10, and the stability and reliability of the detection of the sensor obstacle are greatly improved, so that the obstacle state is accurately judged; in addition, the twice signal detection mode of the invention shields unnecessary alarm for the blind.
Claims (8)
1. An intelligent blind-guiding crutch (100), comprising: handle (1) and walking stick body (5), its characterized in that: the intelligent blind guiding crutch further comprises a hinge four-bar mechanism (10) arranged in the crutch body (5), a sensor (3) for detecting obstacles and an alarm processing system (2) electrically connected with the sensor; the hinge four-bar mechanism (10) is provided with an upper bar body (10 a), a lower bar body (10 b), a left bar body (10 c) and a right bar body (10 d) which are hinged with each other; the left rod body (10 c) is fixedly arranged on the crutch body (5), the left rod body (10 c), the right rod body (10 d), the upper rod body (10 a) and the lower rod body (10 b) form a movable parallelogram structure, and the sensor (3) is arranged on the upper rod body (10 a); the lower rod body (10 b) is positioned at the tail end of the intelligent blind guiding crutch (100) and is parallel to the ground; at least one torsion spring (6) is fixedly arranged in the crutch body (5), one end of the torsion spring (6) is abutted against the inner wall of the crutch body (5) or the left rod body (10 c), and the other end is abutted against the lower rod body (10 b).
2. The intelligent blind guiding crutch (100) of claim 1, characterized in that: the tail end of the crutch body (5) is provided with a boss (5 a), the boss (5 a) is 90-120 degrees with the crutch body (5), and the hinge connection point of the lower rod body (10 b) and the left rod body (10 c) is fixed at the boss (5 a).
3. The intelligent blind guiding crutch (100) of claim 2, characterized in that: the lower rod body (10 b) is provided with an elastic pad (4).
4. The intelligent blind guiding crutch (100) of claim 3, characterized in that: the length of the left rod body is 20-30cm.
5. The intelligent blind guiding crutch (100) of claim 4, characterized in that: the crutch body (5) is also provided with a hole (5 b), the upper rod body (10 a) protrudes from the hole (5 b), and the sensor (3) is fixed on the protruding part of the upper rod body (10 a).
6. The intelligent blind guiding crutch (100) of any of claims 1-5 characterized in that: when the sensor (3) detects the obstacle signal for the first time, the alarm processing system (2) stores the obstacle signal, and when the crutch body (5) does not move and 2 to 10 seconds elapse, the sensor (3) detects the obstacle signal again, the alarm processing system sends an alarm signal.
7. The intelligent blind guiding crutch (100) of any of claims 1-5 characterized in that: the sensor (3) is a distance sensor, and the alarm processing system (2) receives a feedback signal of the sensor (3) and calculates the distance between the sensor and an obstacle.
8. The intelligent blind guiding crutch (100) of claim 7 wherein the alarm processing system (2) is provided with a voice prompt for broadcasting the distance of an obstacle from the user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811589372.7A CN109498383B (en) | 2018-12-25 | 2018-12-25 | Intelligent blind guiding crutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811589372.7A CN109498383B (en) | 2018-12-25 | 2018-12-25 | Intelligent blind guiding crutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109498383A CN109498383A (en) | 2019-03-22 |
| CN109498383B true CN109498383B (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811589372.7A Active CN109498383B (en) | 2018-12-25 | 2018-12-25 | Intelligent blind guiding crutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109498383B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829006A (en) * | 2010-05-21 | 2010-09-15 | 上海市七宝中学 | Blind guiding stick |
| CN103637901A (en) * | 2013-12-27 | 2014-03-19 | 哈尔滨工业大学 | Blind guide crutch based on ultrasonic ranging |
| CN204599623U (en) * | 2015-05-06 | 2015-09-02 | 哈尔滨理工大学 | Be applicable to the Intelligent crutch of the elderly's trip |
| CN210673726U (en) * | 2018-12-25 | 2020-06-05 | 汪紫涵 | Intelligent blind guiding crutch |
-
2018
- 2018-12-25 CN CN201811589372.7A patent/CN109498383B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829006A (en) * | 2010-05-21 | 2010-09-15 | 上海市七宝中学 | Blind guiding stick |
| CN103637901A (en) * | 2013-12-27 | 2014-03-19 | 哈尔滨工业大学 | Blind guide crutch based on ultrasonic ranging |
| CN204599623U (en) * | 2015-05-06 | 2015-09-02 | 哈尔滨理工大学 | Be applicable to the Intelligent crutch of the elderly's trip |
| CN210673726U (en) * | 2018-12-25 | 2020-06-05 | 汪紫涵 | Intelligent blind guiding crutch |
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| Publication number | Publication date |
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| CN109498383A (en) | 2019-03-22 |
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