CN209770825U

CN209770825U - Navigation bar for blind person

Info

Publication number: CN209770825U
Application number: CN201821101467.5U
Authority: CN
Inventors: 张爱国
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2018-07-12
Filing date: 2018-07-12
Publication date: 2019-12-13
Anticipated expiration: 2028-07-12

Abstract

The utility model discloses a navigation stick with a Braille point board and a digital input board for the blind, which is also provided with an alarm device based on fingerprint and a ground flatness identification device, and the design can lead the blind to set the destination by oneself and go out alone; the addition of the ground flatness recognition device can provide suggestions for the safe walking of the blind; the alarm device based on the fingerprint is added, so that the blind can send out distress signals to related nursing staff in time when the blind is in danger.

Description

Navigation bar for blind person

Technical Field

The utility model relates to a navigation head, concretely relates to blind person uses navigation stick.

Background

With the continuous maturity and development of the Beidou navigation system in China, the Beidou navigation system gradually covers the global scope, must also be technically popularized in the global scope and provide services such as positioning, speed measurement, time service and the like for the global, and the positioning navigation is taken as the most traditional business module of the navigation system, and must be further developed due to the success of the Beidou navigation system. The existing positioning navigation function is widely applied to daily life of people, and the most common navigation function is the navigation function of a mobile phone, and a travel route can be reasonably planned according to destination information input by a user and the current position of the user. The user can generally input the destination information by means of handwriting, voice, a conventional keyboard, and the like.

However, the navigation function is often designed only for common users, the related details are improved only by considering the use experience of the common users, and no special navigation device for blind people or old people is available in the market. Statistically, the population aged 60 years and older reaches 2.22 hundred million in 2015, accounting for 16.15% of the total population. By the year 2020, the aged population reaches 2.48 hundred million, and the aging level reaches 17.17%, wherein the aged population above 80 years old reaches 3067 ten thousand people; in 2025, the population above sixty years will reach 3 billion, becoming an ultra-old country. As the policy of 'family planning' is implemented in early stage of China, most families are solitary children, and the family members have own work and career, so that the family members cannot accompany the old at home every day. If a nurse or clockwork is asked to take care of the clothes and the living of the old, the cost is high, and the clockwork can take care of the old while eating at daily life, but cannot take over for the old in the aspect of going and the like.

On the other hand, according to the statistics of the national authority department, China is the most blind countries in the world, about 500 ten thousand of China accounts for 18% of blind population in the world. Meanwhile, 45 million blind persons are newly added in China every year, and experts point out that if the current trend is assumed to keep unchanged, the blind persons in China are expected to increase by 4 times in 2020. The statistical data does not include people with visual impairment. At present, the safe trip of the blind is realized by the help of the blind guiding dog, but the training process of the blind guiding dog is as long as 18 months, the comprehensive cost reaches 2.5-3 ten thousand dollars, the working life is only 8-10 years, in the training process, the master and the blind guiding dog still need to carry out a period of adaptation, the factors of the training time, the cost, the working life and the like are comprehensively considered, and the blind guiding dog is not the best scheme for comprehensive popularization in blind people in China.

Obviously, developing a dedicated navigation device for the special needs of the elderly and the blind is one of the feasible solutions to the above problems. The navigation device can improve the autonomy of the outgoing actions of the old and bring various conveniences to the life of the blind. The conventional navigation device is not suitable for the old or the blind and mainly comprises the following points: 1. the input mode of the existing device limits the old and visually impaired people with low cultural degree; 2. the prior navigation device only meets the requirement of route navigation, but for the weak group of the old or the blind, the rights and interests are possibly infringed, and the old or the blind cannot quickly seek help to the surrounding under the infringement condition; 3. for various conditions blocking travel in life, the conventional navigation device cannot provide prompt for the old or the blind in time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a navigation stick suitable for the operation of blind person and can be better assurance blind person or old man go on a journey safety is provided, solve blind person or old man life alone and go out the problem conscientiously.

In order to solve the technical problem, the technical solution of the utility model is that:

A navigation stick for the blind comprises a stick-shaped body, a navigation device, an input device and an output device, wherein the input device and the output device are respectively in signal connection with the navigation device, the input device comprises a voice input device, and the navigation stick is characterized in that: the input device further comprises a Braille point word board and a digital input board, the output device comprises a voice broadcasting device, the Braille point word board and the digital input board can make up the defect that the existing navigation device is single in input mode, and the voice broadcasting device can bring convenience for blind people and old people with insufficient visual ability.

Further, positioner is for possessing the accurate big dipper navigation chip of reporting time, and big dipper navigation chip not only can avoid single channel trouble to influence information issuing as communication media, can fix a point simultaneously regularly to carry out time report to the user.

Further, the body is extending structure or foldable structure for the reducible duty of navigation stick is avoided bringing inconvenience for other people on periphery, body surface coating has fluorescent material, improves the discernment nature of navigation stick.

Further, the output device also comprises a vibration output device which can send vibration signals to a user.

The alarm device comprises a triggering device and an alarm control device based on fingerprint identification, wherein the alarm control device is in signal connection with the navigation device and the triggering device respectively, and the alarm device can timely and accurately send a distress signal to a guardian.

The indoor position recognition device comprises a second camera for collecting image information of an indoor building and a second image recognition device for judging the indoor position.

Further, the body lower extreme is sheet structure, the center of sheet structure one side is equipped with the third camera of gathering ground image information, and sheet structure can avoid the direct contact between third camera and ground.

Further, be equipped with direction identification arch on the body, through direction identification arch, the user can aim at positive article with the camera.

After the scheme is adopted, the utility model designs the prior navigation device into the navigation rod form according to the actual requirements of the blind and the old, and adds the braille input device and the digital input device, so that the blind can set the destination by himself and go out alone; the addition of the ground flatness recognition device can provide suggestions for the safe walking of the blind; the alarm device based on the fingerprint is added, so that the blind can send out distress signals to related nursing staff in time when the blind is in danger.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a back view of the present invention;

FIG. 3 is a side view of the present invention;

Fig. 4 is a schematic circuit diagram of the present invention;

fig. 5 is a schematic circuit diagram of the identification device of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses a navigation stick for the blind person, because the old man is similar to the special requirement of blind person to the navigation stick, consequently this navigation stick is applicable to the old man and uses equally. As shown in fig. 1-5, for the preferred embodiment of the present invention, as shown in fig. 1-3, the navigation stick comprises a rod-shaped body 1, and the navigation stick can be used as a substitute for a walking stick for the old or a blind person using the rod-shaped body 1. The body 1 is of a telescopic structure or a foldable structure, so that the blind or the old can temporarily compress and retract the navigation stick when entering a public transport means, the space occupation is reduced, inconvenience is avoided for others around, and the specific telescopic structure or the foldable structure can refer to the telescopic or foldable design of the existing crutch and the blind guiding stick. The surface of the body 1 is coated with fluorescent materials, and the navigation rod has obvious identification performance at night or in rainy days based on the characteristics of the fluorescent materials so as to remind passers-by to pay attention to the blind and the old. As shown in fig. 4, the body 1 is integrally installed with a navigation device 2, an input device 3 and an output device 4, wherein the navigation device 2 may adopt existing navigation equipment, such as a mobile phone, a car navigator, etc., which often includes hardware and a navigation software system, such as a storage device 21, an arithmetic device 22, a transmission device 23, a positioning device 24, etc., wherein the storage device 21 stores therein commonly used map data and a navigation software system for providing support for function implementation, further, as shown in fig. 1, the body 2 may be further inserted with a memory card 211 to expand the storage capacity of the device, the memory card may be a TF card or an SD card, for example, Sandisk sdxxg-064G-ZN4 IN; the operation device 22 is mainly used for performing effective planning according to the current position and the destination position to form a reasonable navigation route, the operation device 22 is a CPU of a navigation device, and the like, and the operation device 22 realizes route planning in the prior art; as shown in fig. 4, the transmission device 23 may include a wireless transmission device 231 for transmitting signals with the outside and a USB interface 232 disposed on the rod body of the navigation stick, where the wireless transmission device 231 may be a wireless network card, an SIM card 233, or a bluetooth module, and the like, and may implement signal connection between the navigation stick and devices such as a PC end, a mobile phone end, and a pad end, and the USB interface 232 is mainly used for charging and data transmission with other devices; the positioning device 24 mainly realizes obtaining the current position information of the user, and further realizes route navigation.

As shown in fig. 4, the input device 3 and the output device 4 are respectively connected to the navigation device 2 by signals, and the input device 3 includes a conventional voice input device 31, a braille pad 32 and a digitizer pad 33. The specific structure of the braille lettering board 32 is important for non-present protection, and the technical realization can refer to patent application CN 200810116177.2; the numeric input pad 33 facilitates numeric entry, and its structure and function can be referred to an existing keyboard numeric keypad. In order to make up for the deficiency of the ability of the blind and the elderly to view text, the output device 4 is required to include a voice broadcasting device 41, and the voice broadcasting device 41 can provide services such as destination confirmation broadcasting, navigation broadcasting, roadblock broadcasting and the like for the blind and the elderly by storing common instructions and voice synthesis software in the storage device 21 of the navigation device 2 and synthesizing voice through a system. On the other hand, the output device 4 also includes an external device 42 such as a hearing aid, an earphone, etc., and the external device 42 can be in signal connection with the navigation device 2 through a bluetooth module, etc., so that the relevant navigation information can provide a better playing effect for the user through the external device 42. Meanwhile, the output device 4 further includes a vibration output device 43, the vibration output device 43 outputs a vibration signal, the vibration output device 43 may be a motor with an eccentric block fixedly installed on the body 1, which is widely used in mobile phones at present, and detailed description is omitted here, the vibration output device 43 may give a signal to the user in a hand touch sense, for example, when the navigation stick performs vibration for a long time without stopping, the user may be reminded that the navigation stick cannot move forward, but only when the navigation stick performs vibration for a short time, the user is reminded to move forward carefully, and the like. The vibration output device 43 is matched with the voice broadcasting device 41, so that the situation that a user misses a certain voice prompt due to noisy environment can be avoided. The braille pad 32 and the numeric input pad 33 can help a user to conveniently input a navigation destination, and the confirmation of the navigation destination is realized by matching the vibration output device 43 and the voice broadcasting device 41.

Further, to enrich the function of the navigation bar, when the blind or the old encounters an accident or inconvenience, the alarm device 5 of the navigation bar may be activated, as shown in fig. 1 and 4, the alarm device 5 includes a trigger device 51 based on fingerprint identification, and an alarm control device 52, wherein the alarm control device 52 is in signal connection with the navigation device 2 and the trigger device 51, respectively. The triggering device 51 may be a fingerprint recognizer storing fingerprint information of a user of the navigation stick, when the user performs fingerprint verification, the user identity is verified by comparing the stored fingerprint information, and alarm information can be issued externally by the alarm control device 52 if the verification is passed, the fingerprint verification design of the triggering device 51 can effectively prevent a child from mistakenly sending an early warning when playing with the navigation stick, and the fingerprint recognizer is the prior art and is not specifically described herein. After the trigger device 51 confirms that the trigger is triggered, the alarm control device 52 obtains the position information of the current user from the positioning device 24 in the navigation device 2, forms the distress message containing the position information of the person to be rescued, and quickly sends the distress message to the appointed guardian or nursing staff through the transmission device 23 of the navigation device 2, and the equipment generates information based on specific event conditions and sends the information which is generally applied in the mobile phone technology at present, so that the technical details are not discussed here.

Further, positioner 24 can select for possessing the accurate big dipper navigation chip of reporting time, and big dipper navigation chip is the homemade technique, has higher security, simultaneously, as new generation location technique, the big dipper has functions such as communication and target location concurrently, consequently adopts big dipper navigation chip to be favorable to guardian or nursing staff to initiatively fix a position blind person or old man, and blind person or old man send information also can pass through the big dipper satellite as communication media, avoids influencing information issuing because of single channel fault. On the other hand, because big dipper navigation chip possesses accurate function of telling time, can combine voice broadcast device 41 to regularly carry out the time to the user and report.

further, since the indoor space is limited and the blind or the elderly cannot be accurately located based on the compass navigation, the navigation stick further includes an indoor position recognition device 9, as shown in fig. 5, the indoor position recognition device 9 includes a second camera 91 for collecting image information of an indoor building and a second image recognition device 92 for determining the indoor position, the second image recognition device 92 may also be a single chip microcomputer structure loaded with an image recognition program, the single chip microcomputer structure may also be a common STR89C52RC 401 PDIP40 chip, when the blind or the elderly are indoors, the position of the blind or the elderly can be determined based on the indoor position recognition device 9, specifically, a scene in front of the blind or the elderly can be obtained through the second camera 91, the obtained image is sent to the second image recognition device 92 by the second camera 91, the second image recognition device 92 compares the pre-stored indoor image information with the obtained image, because the pre-obtained indoor image information is associated with the indoor position information, the position of the user can be quickly determined through comparison, whether the user is in a living room or a bedroom, whether the door of the bedroom is in an open state or a closed state, and the like. The navigation device 2 can quickly determine a navigation route based on indoor plane map data and current position information of the blind or the old, and realize accurate navigation of the blind or the old in an indoor scene. The navigation device 2 can also remind the user whether to perform door opening and closing operations by triggering vibration of the vibration output device 43 according to the opening and closing state of the bedroom door. Further, in order to save resources, the camera 61 and the second camera 91 may share one camera.

Further, for improving the user to the discernment ability of ground roughness, avoid causing the user to walk inconveniently because of ground pothole is uneven, the body lower extreme can be surveyed the ground situation, and is concrete, and the lower extreme of body 1 is sheet structure 8, as shown in fig. 2 and 3, navigation stick body 1 axis is located on sheet structure 8's the plane, the center of sheet structure 8 one side is equipped with the third camera 81 of gathering ground image information, and sheet structure 8 can avoid the direct contact between third camera 81 and ground, better protection third camera 81. The body 1 is also fixedly provided with a third image recognition device 82 for recognizing ground image information, the third image recognition device 82 can also be a single chip microcomputer structure loaded with an image recognition program, and the single chip microcomputer structure can also adopt a common STR89C52RC 401 PDIP40 chip. When the navigation stick inclines to lead the road in the front direction, a user can make the sheet structure 8 at the lower end of the navigation stick keep the surface where the third camera 81 is located facing the ground all the time through the direction identification protrusion 7 on the body 1, the ground is shot by the third camera 81 at regular time, the shot image information is transmitted to the third image identification device 82, and the information such as the ground flatness and whether the road surface is a blind road is judged based on the ground image identification technology.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that all changes and modifications made according to the claims and the specification of the present invention should fall within the scope covered by the present invention.

Claims

1. A navigation stick for the blind comprises a stick-shaped body, a navigation device, an input device and an output device, wherein the input device and the output device are respectively in signal connection with the navigation device, the input device comprises a voice input device, the navigation device comprises a positioning device, and the navigation stick is characterized in that: the input device further comprises a Braille point word board and a digital input board, and the output device comprises a voice broadcasting device.

2. The navigation stick for the blind as claimed in claim 1, wherein: the positioning device is a Beidou navigation chip with accurate time reporting.

3. The navigation stick for the blind as claimed in claim 1, wherein: the body is of a telescopic structure or a foldable structure, and the surface of the body is coated with a fluorescent material.

4. the navigation stick for the blind as claimed in claim 1, wherein: the output device further comprises a vibration output device.

5. the navigation stick for the blind as claimed in claim 1, wherein: the alarm device comprises a triggering device based on fingerprint identification and an alarm control device, wherein the alarm control device is respectively in signal connection with the navigation device and the triggering device.

6. The navigation stick for the blind as claimed in claim 1, wherein: the indoor position identification device comprises a second camera for collecting image information of an indoor building and a second image identification device for judging the indoor position.

7. The navigation stick for the blind as claimed in claim 1, wherein: the lower extreme of body is sheet structure, the center of sheet structure one side is equipped with the third camera of gathering ground image information.

8. the navigation stick for the blind as claimed in any one of claims 6 to 7, wherein: the body is provided with a direction identification bulge.