CN109646258A - A kind of blind-guiding stick, blind guiding system and blind-guiding method - Google Patents
A kind of blind-guiding stick, blind guiding system and blind-guiding method Download PDFInfo
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- CN109646258A CN109646258A CN201910139730.2A CN201910139730A CN109646258A CN 109646258 A CN109646258 A CN 109646258A CN 201910139730 A CN201910139730 A CN 201910139730A CN 109646258 A CN109646258 A CN 109646258A
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- 230000004379 myopia Effects 0.000 description 2
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- 229920001778 nylon Polymers 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
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- 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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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/48—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
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Abstract
The present invention provides a kind of blind-guiding stick, blind guiding system and blind-guiding methods.The blind-guiding stick includes switch, handle, strut, input unit, master control system, obstacle avoidance system, navigation information acquisition device and tumble guard system.Blind guiding system includes the corresponding label information of RFID tag and satellite-signal geographical location information, the end intelligent subscriber and blind-guiding stick.Blind-guiding method obtains user's current geographic position information including the use of blind-guiding stick and receives user request information；User's current geographic position information and user request information are sent to blind-guiding stick；Blind-guiding stick carries out route planning according to information is received, and generates navigation information and navigates.Blind-guiding stick of the invention can provide more accurate navigation information for user, and covering region is wide；Traffic information constantly can be fed back to user when user goes on a journey and user information is fed back to other people；Blind guiding system is multiple functional, at low cost, and feasibility is high；Blind-guiding method fast response time, safe ready.
Description
Technical Field
The invention relates to the technical field of blind guiding, in particular to a blind guiding stick, a blind guiding system and a blind guiding method.
Background
The government of China always cares about the disabled and pays attention to the development of the disabled. For more than 20 years, China guarantees the rights of the disabled and improves the life quality of the disabled by taking a series of important measures such as politics, economy, laws, administration and the like. Along with the rapid development of Chinese economy and the overall progress of society, the survival and development conditions of the majority of the disabled are obviously improved, the concept of the society on the disabled is deeply changed, and the environments and conditions of the disabled, and the like, which participate in social life, are more and more superior.
According to the statistics of state authority departments, China is the most countries of users in the world, about 500 thousands of users and 1230 thousands of amblyopia groups account for 18 percent of the total number of the users in the world, 600 more than ten thousands of low-vision people and 1000 thousands of children with oblique amblyopia, the myopia rate of teenagers is up to 40 percent on average, and the myopia rate of undergraduates is over 70 percent. Meanwhile, 45 million users are newly added in China every year, and experts point out that if the current trend continues to be unchanged, users in China are expected to increase by 4 times by 2020.
Users lose their vision, which causes inconvenience to their learning, work, life, and the like. Especially, when the person goes out safely, the person cannot accurately and timely avoid obstacles and cannot distinguish the direction of the person, so that inconvenience is caused in going out. Therefore, the user needs assistance from the navigation device when traveling alone. Among the most conventional devices are blind canes, by which the terrain and the danger thereof are judged by striking the ground. Then, an electronic blind stick appears, which utilizes an infrared sensing electronic technology and an ultrasonic technology to prolong the detection range, but the sensing range of the electronic blind stick is limited, and the electronic blind stick cannot play a guiding role. With the development of science and technology, various GPS-based blind guiding sticks come into play. It relies on satellites to determine the current location of the user and to cooperate with corresponding algorithms to give the user the appropriate path. However, the existing digital navigation methods such as GPS positioning have the problems of low navigation accuracy and high user operation difficulty, and the blind guiding stick cannot work normally in places where satellite signals are unstable, such as indoor channels.
Therefore, it is very necessary to design an intelligent voice navigation blind guiding system which is complete in use and functions and meets the requirements of users.
Disclosure of Invention
In view of the deficiencies in the prior art, it is an object of the present invention to address one or more of the problems in the prior art as set forth above. For example, it is an object of the present invention to provide a blind guiding stick used in conjunction with satellite positioning and radio frequency identification technologies.
In order to achieve the above object, an aspect of the present invention provides a blind guiding stick, which may include a switch, a handle, a stay, an input device, a main control system, an obstacle avoidance system, a navigation information acquisition device, and a fall protection system, wherein the switch is disposed on a surface of the handle and is capable of turning on or off the blind guiding stick; one end of the support rod is connected with the handle, and the other end of the support rod is provided with a navigation information acquisition device; the input device is arranged on the surface of the handle and can receive a user instruction and transmit the user instruction to the main control system; the main control system is arranged on the handle or the stay bar, is respectively connected with the input device, the obstacle avoidance system, the navigation information acquisition device and the falling protection system, and can perform route planning and generate corresponding navigation information according to the received user instruction and the read user geographical position information acquired by the navigation information acquisition device; the obstacle avoidance system is arranged on the surface of the support rod, and can measure the distance between a user and an obstacle and transmit the distance to the main control system so as to warn the user to avoid the obstacle; the navigation information acquisition device comprises a radio frequency identification reader reading module and a satellite positioning module which are in wireless connection with a radio frequency identification tag located in the area where the blind road is located, the radio frequency identification reader reading module and the satellite positioning module can be freely switched, and the navigation information acquisition device can acquire user geographical position information and transmit the position information to the main control system to generate navigation information; the fall protection system is arranged on the handle or the stay bar, can collect user action information and orientation information and transmit the user action information to the main control system, and the main control system can judge the walking direction of a user and determine whether the user falls down according to the user action information and send a signal.
In an exemplary embodiment of the blind guiding stick of the present invention, the input device may include a voice input module and operation keys, the voice input module and the operation keys are connected to the main control system, and the operation keys include a navigation mode switching key, an SOS one-key help-seeking key, a taxi key, a current position key, a navigation key, a time-telling key, and a volume adjusting key.
In an exemplary embodiment of the blind guiding stick of the present invention, the main control system may include a processing unit, an output unit, and a storage unit, wherein a signal input end of the processing unit is respectively connected to the input device, the obstacle avoidance system, the navigation information acquisition device, and the fall protection system, and an output end of the processing unit is connected to the output unit; the output unit comprises a voice module, a communication module and a prompt module, and can perform voice broadcast, communication and user prompt according to the received output signal of the processing unit; the storage unit is connected with the processing unit and can store voice information and user position information.
In an exemplary embodiment of the blind guiding stick of the present invention, the obstacle avoidance system may include an ultrasonic ranging module and an infrared ranging module, and the fall protection system includes a multi-axis gyroscope sensor.
In an exemplary embodiment of the blind guiding stick of the present invention, in case of unstable satellite signals, the navigation information obtaining device obtains the user geographical position information by switching to the rfid reader reading module.
In an exemplary embodiment of the blind guiding stick of the present invention, the blind guiding stick further comprises a wired earphone interface and a bluetooth earphone interface, which are located on the surface of the handle and are capable of receiving voice information output by the main control system and transmitting user instructions to the main control system.
Another aspect of the present invention provides a blind guiding system, which may include tag information and satellite signal geographical location information corresponding to a radio frequency identification tag, an intelligent user terminal, and the blind guiding stick as described above, wherein the blind guiding stick is configured to determine user geographical location information according to the tag information and satellite signal geographical location information corresponding to the radio frequency identification tag, receive a user request, and generate navigation information according to the user geographical location information and the user request for navigation; the intelligent user side is connected with the blind guiding stick and comprises a self-using end and an other-using end, the self-using end can provide friends making, image-text recognition and real-time traffic condition query for a user, and the other-using end can be used for sharing real-time position information of other people and the user, electronic fences, voice calls and seeking help information to view.
Yet another aspect of the present invention provides a blind guiding method, which may include the steps of: the method comprises the steps of obtaining current geographical position information of a user by using the blind guiding stick and receiving user request information; transmitting the current geographical position information of the user and the user request information to a blind guiding stick; and the blind guiding stick carries out route planning according to the received information, generates corresponding navigation information and carries out navigation according to the navigation information.
In an exemplary embodiment of the blind guiding method of the present invention, the method may further include that, in a case where an obstacle is detected, the blind guiding stick reminds the user by vibrating or voice and simultaneously gives out voice to remind the obstacle to avoid, and if the obstacle is not actively avoided, the blind guiding stick guides the user to detour.
In an exemplary embodiment of the blind guiding method of the present invention, the blind guiding method may further include that, when the user selects to take a car to a destination, the user inputs a taking request through the blind guiding stick, the blind guiding stick obtains current geographical position information of the user, determines whether a taking point exists at the current position, and if not, guides the user to take the car to the taking point and sends a taking request and the current position to the driver.
Compared with the prior art, the blind guiding stick can acquire position information through an underground Radio Frequency Identification (RFID) tag and a satellite system, so that more accurate navigation information is provided for a user, and the coverage area is wide; the road condition information can be fed back to the user and the user information can be fed back to other people at any time when the user goes out; the blind guiding system has complete functions, low cost and high feasibility; the blind guiding method has high response speed and is safe and convenient.
Drawings
The above and other objects and features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
fig. 1 shows a schematic view of a blind guiding stick according to an exemplary embodiment of the present invention.
Fig. 2 is a schematic diagram of a blind stick main control system according to an exemplary embodiment of the present invention.
Fig. 3 shows a schematic diagram of a blind guiding system according to an exemplary embodiment of the present invention.
Reference numerals:
1. a switch; 2. a handle; 3. an input device; 4. a master control system; 5. an obstacle avoidance system; 6. a stay bar; 7. a navigation information acquisition device; 8. a fall protection system.
Detailed Description
Hereinafter, a blind guiding stick, a blind guiding system and a blind guiding method according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
Fig. 1 shows a schematic view of a blind guiding stick according to an exemplary embodiment of the present invention. Fig. 2 is a schematic diagram of a blind stick main control system according to an exemplary embodiment of the present invention. Fig. 3 shows a schematic diagram of a blind guiding system according to an exemplary embodiment of the present invention.
In one aspect of the invention, a blind guiding stick is provided, which in one exemplary embodiment of the blind guiding stick of the invention, as shown in fig. 1, comprises a switch 1, a handle 2, an input device 3, a main control system 4, an obstacle avoidance system 5, a stay 6, a navigation information acquisition device 7, and a fall protection system 8, wherein,
the switch 1 can be arranged on the surface or the end part of the handle 2 and is used for controlling the power supply of the blind guiding stick to be switched on or off.
One end of the stay bar 6 can be connected with the handle 2, and the other end can be provided with the navigation information acquisition device 7. The supporting rod 6 and the handle 2 can be in a certain radian, so that a user can use the blind guiding stick better.
The input device 3 may be disposed on a surface of the handle 2, and may receive a user's command and transmit the received command to the main control system 4.
The main control system 4 can be respectively connected with the input device 3, the obstacle avoidance system 5, the navigation information acquisition device 7 and the fall protection system 8. The main control system 4 can receive the user instruction output by the input device 3, can receive the warning signal output by the obstacle avoidance system 5 and process the signal to warn the user, can receive the user geographical position information obtained by the navigation information obtaining device 7, generates a corresponding navigation route navigation user according to the user geographical position information and the destination instruction input by the user, and can receive the user action information output by the fall protection system 8 to send out a recourse signal. The main control system 4 may be provided on the handle 2 or the stay 6. For example, the master control system 4 may be provided on the surface of the handle 2 or the stay 6.
The obstacle avoidance system 5 may be disposed on a surface of the stay 6, for example, may be disposed at a middle position of the stay 6. The obstacle avoidance system can measure the distance between a front obstacle and a user in the user traveling process so as to prompt the user to avoid the obstacle or warn the obstacle to avoid the user.
The navigation information acquisition means 7 may be located at the end of the strut 6 remote from the handle. The information-leading type acquiring means 7 may comprise a Radio Frequency Identification (RFID) reader reading module and a satellite positioning module. The RFID reader reading module and the satellite positioning module can be freely switched. The navigation information acquisition device 7 can acquire user geographical position information and transmit the position information to a main control system to generate navigation information. When the user is located in an area with unstable satellite signals, the user can switch the blind stick to the RFID reader reading module, and geographic position information positioning and navigation are carried out by reading the tag information corresponding to the RFID tag at the current position.
The fall protection system 8 may be provided on the handle 2 or the stay 6, for example, inside or on a surface of the handle 2 or the stay 6. The falling protection system 8 can collect the current action and direction information of the user and transmit the information to the processing unit, judge the walking direction of the user and whether the user falls, and feed back prompt and help information.
In this embodiment, the handle 2 may be provided with a housing. The housing may be made of TPE (thermoplastic elastomer). Can set up the spiral strip on the surface of shell, the concave point decorative pattern can play the durable effect of antiskid. The handle 2 may have a motor vibrator and a power module built therein, for example, the motor vibrator may be a 1030 flat motor vibrator. The motor vibrator can provide warning information for a user, for example, when the obstacle avoidance system detects an obstacle in front, the motor vibrator can transmit a signal to the main control system and then feed the signal back to the handle to warn the user. The power module provides power for the whole blind guiding stick, has a self-checking function, and can give an alarm when the electric quantity of the battery is too low to remind a user to charge or replace the battery.
In this embodiment, the stay bar 6 can be made of aluminum alloy, so that the requirements of low density and light height of the blind guiding stick can be met. The stay bar can be arranged into a sectional foldable shape, and the surface of the stay bar can be coated with a reflective material to remind passers-by to avoid. One end of the support rod can be in threaded connection with the handle, and the other end of the support rod can be in threaded connection with the navigation information acquisition device.
In this embodiment, the housing of the navigation information acquiring apparatus 7 may be made of nylon. For example, pa66 nylon can make the navigation information acquisition device have good wear resistance and impact resistance and high strength.
In this embodiment, the navigation information acquiring device 7 includes an RFID reader reading module and a satellite positioning module. The satellite positioning module may be a dual-frequency GPS module. Of course, the GPS satellite signal of the present invention is not limited thereto, and may be, for example, a beidou navigation satellite signal. The RFID reader is mainly applied to the places such as indoor places and basements with unstable satellite signals for acquiring the geographic position information. Before the guide stick is used, the navigation device with the built-in RFID tag can be pre-buried under the ground, a specific target can be identified through a radio signal, and relevant data can be read and written. The satellite positioning module is mainly applied to local navigation with stable satellite signals. Further, the present invention uses a dual frequency GPS system. The dual-frequency GPS system can collect data of two frequency bands of L1+ L5 for fusion operation, the positioning accuracy of daily used scenes can reach 1-2m, and the positioning accuracy is higher. The RFID reader and the dual-frequency GPS module are combined to ensure that the geographical position of the whole region can be acquired, and more accurate navigation information can be provided for a user.
In this embodiment, the switch 1 may be provided at the end of the handle 2, as shown in fig. 1. Of course, it may be provided on the surface of the handle 2. The delivery device 3 may be located in the forward portion of the handle 2. A bracket can be arranged at the front section of the output device 3, and the bracket can be used for arranging and fixing the main control system 4 and the fall protection system 8.
In this embodiment, the input device 3 may include a voice input module and an operation key. The operation keys can comprise a navigation mode switching key, an SOS one-key help-seeking key, a taxi key, a current position key, a navigation key, a time key, a volume adjusting key and the like. Of course, the operation keys of the present invention are not limited thereto, and for example, the operation keys of the present invention may include a WeChat open use key and the like. Furthermore, the operating keys can adopt braille. The navigation mode switching key can be used for freely switching the RFID reader reading module and the satellite positioning module. The RFID reader reading module and the satellite positioning module can work simultaneously or independently. The satellite positioning module monitors the stability of satellite signals, and when the satellite signals are unstable, the main control system can prompt a user to switch the navigation mode and switch the navigation mode to the RFID reader reading module. The navigation mode can also be set for automatic switching, and when the satellite signal is unstable, the navigation mode can be directly and automatically switched to the RFID reader reading module for positioning and navigation, so that the user can be ensured to acquire accurate geographical position information.
In the present embodiment, as shown in fig. 2, the main control system 4 may include a processing unit, an output unit, and a storage unit. The processing unit may receive the external environment information acquired by the obstacle avoidance device 5, may receive a user control instruction output by the input device 3, may receive user position information acquired by the navigation information acquisition device 7, and may receive user motion state information output by the fall protection system 8. The processing unit can realize writing and reading of the storage unit, control of the output unit and other work, and can realize system operation of received information. The processing unit may be an MCU of the ARM architecture. The output unit can receive the signal information processed by the processing unit and send out corresponding instructions. The output unit may include a voice module, a communication module (GSM module), and a prompt module. The output unit can perform related prompting work on the user, including sending out a distress signal, providing information for the user himself or others, and the like. The voice module can send voice prompt information to a user. The communication module can be connected with an intelligent user side of a user or other people through a network, for example, the intelligent user side can be a mobile phone APP of the user or other people. The cueing module may be a flat motor vibrator. The storage unit can be connected with the processing unit and can store voice information and position information. The memory unit may be an EPROM or a flash.
In this embodiment, the obstacle avoidance system 5 may include an ultrasonic ranging module and an infrared ranging module, and can measure the distance between the obstacle and the user, and feed back the measured result to the main control system. The main control system can control the blind guiding stick to send out a warning signal. By combining the ultrasonic and infrared distance measurement modes, the obstacle avoidance accuracy of the user can be realized.
In this embodiment, the fall protection system 8 may comprise multi-axis gyroscope sensors including accelerometers, gyroscopes, magnetometers, barometers, and the like. Of course, the number of axes of the gyro sensor of the present invention is not limited thereto. The falling protection system can collect current action and direction information and transmit the information to the processing unit of the main control system, judge the walking direction of the user and whether the user falls, and feed back prompt and help seeking information.
In this embodiment, the blind guiding stick further includes a wired earphone interface and a bluetooth earphone interface. The wired earphone interface and the Bluetooth earphone interface can be positioned on the surface or the end part of the handle and can receive voice information output by the main control system and transmit user instructions to the main control system so as to meet the use requirements of users.
In another aspect of the present invention, a blind guiding system is provided, and in an exemplary embodiment of the blind guiding system of the present invention, as shown in fig. 3, the blind guiding system includes the blind guiding stick, tag information corresponding to the blind road RFID tag, satellite signal geographical location information, and an intelligent user terminal as described above. Wherein,
and the tag information corresponding to the blind road RFID tag and the satellite signal geographical position information are used for determining the user geographical position information. When satellite signals in an indoor or underground garage and the like are unstable, the blind guiding stick uses the tag information corresponding to the RFID tag to determine the geographic position. The tag information corresponding to the RFID tag may be obtained by embedding a navigation device having the RFID tag in the ground such as an indoor area where satellite signals are unstable. The satellite signal geographical position information may be geographical position information obtained by a dual-frequency GPS system.
The blind guiding stick can determine user geographical position information according to the tag information corresponding to the blind road RFID tag and the satellite signal geographical position information, receive a user instruction and generate a corresponding navigation information navigation user.
The intelligent user side can be connected with the blind guiding stick through a network. The intelligent user side comprises a self-use end and other use ends. The self-using end can provide friend making, image-text recognition and real-time traffic condition query for the user, and the other end can be used for sharing position information, electronic fences, voice calls and seeking help information of other people and the user in real time. For example, the smart client may be a smart phone client. The mobile phone APP at the smart phone end is divided into a Xiaoming assistant (other end) and a Xiaoming peer (self end). The assistant is suitable for family members or friends of the user, the blind stick uploads the state of the user to the assistant at the smart phone end, and the assistant has the functions of real-time geographic position query, electronic fence, voice call and help seeking information sent by the user. The application objects of the Xiaoming colleague are users themselves, and voice interaction is adopted, so that the Xiaoming colleague comprises the functions of friend making, image-text recognition and local traffic condition query for the users. The electronic fence for the user to go out is set, the range can be defaulted to be the distance away from home, and if the distance exceeds the range, the assistant can receive corresponding prompt information to remind the user that the family user will exceed the safe region and please contact with the user in time, and meanwhile, the tactile stick can also give out vibration and language to remind the user. Family members can also use the small and clear assistant to send language information to the user, and the voice information is conveyed to the user through a language module of the blind guiding stick.
Therefore, the user can be directly called by a telephone by using the small and clear assistant, and can directly communicate with family through the blind stick. When the user sends out help seeking information to the family members, the family members of the user can immediately acquire the position information of the user through the small clear assistant. Specifically, the mobile phone APP special for the Xiaoming behavior user adopts natural language recognition, and the functions of the system can be controlled through voice. The user can log in the Xiaoming college entrance by saying to the mobile phone, the Xiaoming college entrance can prompt the user to input a user name and a password by voice, whether the user logs in or not can be prompted after the input is finished, and the user sends out login voice to log in. Furthermore, the user can add friends through voice, directly sends a language message to the friends through voice, and when receiving the friend message, the Xiaoming fellow can remind the user whether to play, and when the mobile phone GPS is started, the Xiaoming fellow can be used for searching nearby users to chat and make friends.
Further, the user can perform online group chat and a circle of friends through the Xiaoming peer to view the latest dynamics of friends.
Furthermore, when the user needs to read the pictures and texts, the Xiaoming peer is opened, the voice sends out an instruction, the picture and text information is obtained through the mobile phone camera and converted into voice information, and the voice information is broadcasted for the user.
Furthermore, the user can also obtain information such as public transport, subway and the like through the small and clear network appointment.
In general, the blind guiding system of the invention is based on a navigation device with an underground built-in RFID tag, identifies a specific target and reads related data through a radio signal, acquires position information and reads related data by combining a satellite positioning technology (dual-frequency GPS positioning technology), and feeds back different position information to a user to realize navigation of the user. Meanwhile, specific road condition information can be fed back to the user, and the state of the user can also be fed back to family members or friends of the user, so that the user can go out more safely and efficiently.
In an exemplary embodiment of the blind guiding method of the present invention, the blind guiding method may include the following steps:
in step S01, the navigation device with the RFID tag built therein is embedded in a place such as indoors where satellite signals are unstable.
In this embodiment, the navigation device with the RFID tag and the satellite signal are stable without pre-embedding the navigation device.
And step S02, setting the user intelligent user terminal.
In this embodiment, for example, an application program may be installed on the mobile phones of the user and others. For example, a little-bright-peer line as described above may be installed for the user, and a little-bright-assistant as described above may be installed for the family of the user.
Step S03, the above-mentioned guide stick is used for guiding blind.
In this embodiment, the user can input the destination by voice, and the blind guiding stick can automatically select an optimal line and guide the user in real time by broadcasting the geographical location information.
In the embodiment, in the traveling process, the front obstacle can be monitored through the ultrasonic ranging module and the infrared ranging module which are contained in the obstacle avoidance system, when the obstacle is monitored, the user is reminded through vibration and voice, meanwhile, voice is played outside to ask the user to avoid, and when the obstacle does not make corresponding action, the user is automatically guided to detour.
In this embodiment, during traveling, current action information may be acquired through a fall protection system, for example, a 10-axis gyroscope sensor, and when a user falls, first help-seeking information is sent to passers around, and meanwhile, position information and help-seeking information are sent to family members of the user, so that the user can conveniently contact the family members at the first time.
In the embodiment, in the traveling process, if a user needs to drive to a destination, a driving button on the handle can be triggered. The blind guiding stick reads a current geographic position through a satellite signal (a dual-frequency GPS), obtains a destination of a user in the row through voice, judges whether the current position is an available taxi taking point, if not, guides the user to go to the taxi taking point firstly, automatically starts to send a taxi taking request after the current position arrives, and prompts the user to wait for time after a person receives a taxi.
In conclusion, the blind guiding stick can acquire position information through an underground Radio Frequency Identification (RFID) tag and a satellite system, so that more accurate navigation information is provided for a user, and the coverage area is wide; the road condition information can be fed back to the user and the user information can be fed back to other people at any time when the user goes out; the blind guiding system has complete functions, low cost and high feasibility; the blind guiding method has high response speed and is safe and convenient.
Although the present invention has been described above in connection with exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A blind guiding stick is characterized in that the blind guiding stick comprises a switch, a handle, a stay bar, an input device, a main control system, an obstacle avoidance system, a navigation information acquisition device and a falling protection system, wherein,
the switch is arranged on the surface of the handle and can start or close the blind guiding stick;
one end of the support rod is connected with the handle, and the other end of the support rod is provided with a navigation information acquisition device;
the input device is arranged on the surface of the handle and can receive a user instruction and transmit the user instruction to the main control system;
the main control system is arranged on the handle or the stay bar, is respectively connected with the input device, the obstacle avoidance system, the navigation information acquisition device and the falling protection system, and can perform route planning and generate corresponding navigation information according to the received user instruction and the read user geographical position information acquired by the navigation information acquisition device;
the obstacle avoidance system is arranged on the surface of the support rod, and can measure the distance between a user and an obstacle and transmit the distance to the main control system so as to warn the user to avoid the obstacle;
the navigation information acquisition device comprises a radio frequency identification reader reading module and a satellite positioning module which are in wireless connection with a radio frequency identification tag located in the area where the blind road is located, the radio frequency identification reader reading module and the satellite positioning module can be freely switched, and the navigation information acquisition device can acquire user geographical position information and transmit the position information to the main control system to generate navigation information;
the falling protection system is arranged on the handle or the support rod, can collect user action information and azimuth information and transmit the user action information and the azimuth information to the main control system, and the main control system can judge the walking direction of a user and judge whether the user falls down according to the user action information and the azimuth information and send signals.
2. The tactile stick of claim 1, wherein the input device comprises a voice input module and operation buttons, the voice input module and the operation buttons are connected to the main control system, and the operation buttons comprise a navigation mode switching button, an SOS one-button help-seeking button, a taxi-taking button, a current position button, a navigation button, a time-telling button and a volume adjusting button.
3. The blind guiding stick of claim 1, wherein the main control system comprises a processing unit, an output unit, and a storage unit, wherein,
the signal input end of the processing unit is respectively connected with the input device, the obstacle avoidance system, the navigation information acquisition device and the falling protection system, and the output end of the processing unit is connected with the output unit;
the output unit comprises a voice module, a communication module and a prompt module, and can perform voice broadcast, communication and user prompt according to the received output signal of the processing unit;
the storage unit is connected with the processing unit and can store voice information and user position information.
4. The blind guiding stick of claim 1, wherein the obstacle avoidance system comprises an ultrasonic ranging module and an infrared ranging module, and the fall protection system comprises a multi-axis gyroscope sensor.
5. The blind guiding stick of claim 1, wherein the navigation information obtaining device obtains the user geographical position information by switching to the rfid reader reading module in case of unstable satellite signals.
6. The blind guiding stick of claim 1, further comprising a wired earphone interface and a bluetooth earphone interface on the surface of the handle, the wired earphone interface and the bluetooth earphone interface being capable of receiving voice information output by the main control system and transmitting user commands to the main control system.
7. A blind guiding system, which comprises tag information corresponding to RFID tags and satellite signal geographical location information, a smart client and the blind guiding stick of any one of claims 1-6,
the blind guiding stick is used for determining user geographical position information according to the tag information corresponding to the radio frequency identification tag and the satellite signal geographical position information, receiving a user request, and generating navigation information according to the user geographical position information and the user request for navigation;
the intelligent user side is connected with the blind guiding stick and comprises a self-using end and an other-using end, the self-using end can provide friends making, image-text recognition and real-time traffic condition query for a user, and the other-using end can be used for sharing real-time position information of other people and the user, electronic fences, voice calls and seeking help information to view.
8. A method for guiding blind, the method comprising the steps of:
the blind guiding stick according to any one of claims 1 to 6 is used for acquiring the current geographical position information of a user and receiving user request information;
transmitting the current geographical position information of the user and the user request information to a blind guiding stick;
and the blind guiding stick carries out route planning according to the received information, generates corresponding navigation information and carries out navigation according to the navigation information.
9. The method of claim 8, further comprising, in the event that an obstacle is detected, the blind guiding wand vibrating or audibly alerting the user and simultaneously audibly alerting the user to avoid the obstacle, wherein the blind guiding wand guides the user around if the obstacle is not actively avoided.
10. The blind guiding method according to claim 8, further comprising the steps that when the user selects to take the vehicle to the destination, the user inputs a vehicle taking request through the blind guiding stick, the blind guiding stick obtains the current geographic position information of the user, judges whether a vehicle taking point exists in the current position, and if not, guides the user to take the vehicle to the vehicle taking point and sends a vehicle taking request and the current position to the driver.
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| CN110812143A (en) * | 2019-12-02 | 2020-02-21 | 姜国宁 | Information reminding method and device based on blind guiding walking stick |
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| CN110595484A (en) * | 2019-10-28 | 2019-12-20 | 陈思然 | Blind person navigator system based on GPS positioning and supporting handwriting input |
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| CN110974639A (en) * | 2019-12-02 | 2020-04-10 | 姜国宁 | Information determination method and device based on blind guide earphone |
| CN111700781A (en) * | 2020-07-23 | 2020-09-25 | 上海工艺美术职业学院 | Portable blind-guiding walking stick |
| CN112353652A (en) * | 2020-10-23 | 2021-02-12 | 复旦大学 | Intelligent blind guiding system |
| WO2022095288A1 (en) * | 2020-11-03 | 2022-05-12 | 深圳技术大学 | Interactive smart white cane and zebra crossing |
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