CN110897840B - Intelligent navigation method and device for blind people going out - Google Patents
Intelligent navigation method and device for blind people going out Download PDFInfo
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- CN110897840B CN110897840B CN201911210310.5A CN201911210310A CN110897840B CN 110897840 B CN110897840 B CN 110897840B CN 201911210310 A CN201911210310 A CN 201911210310A CN 110897840 B CN110897840 B CN 110897840B
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- 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
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Abstract
The invention provides an intelligent navigation method and device for the trip of the blind, which relate to the technical field of intelligent navigation and are used for obtaining destination information input by a user; the GPS positioning system obtains the current position information of the user sent by the position induction transmitter, wherein the position induction transmitter is arranged on a blind guiding dog; acquiring real-time traffic condition information sent by the city database by using the information consultation interface; the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information; the first instruction information is obtained according to the first path information, and the guide dog leads the user to go forward according to the first instruction information, so that the blind can obtain external information in time, the intellectualization of the trip route planning of the blind is realized, the life self-care ability of the blind is improved, and the technical effect of facilitating the trip is achieved.
Description
Technical Field
The invention relates to the technical field of intelligent navigation, in particular to an intelligent navigation method and device for the trip of a blind person.
Background
The blind person refers to the visually impaired, and the visually impaired people are mainly divided into two categories, namely full-blind and semi-blind. Blind, i.e., atrophy or calcification of the eyeball, is unresponsive to light. And the second is amblyopia (60% lower than normal vision), and the blind is restricted in movement due to visual disturbance. China is one of the most blind countries in the world, and for the special population, the current travel problem for the blind is mainly limited in the navigation field.
However, the applicant of the present invention finds that the prior art has at least the following technical problems:
at present, many visually impaired people select a guide dog, which is a dog subjected to strict training and is a working dog. The trained guide dog can help the blind to go to schools, shops, laundries, street gardens and the like, can lead the blind to safely walk, and can guide the owner to stop so as to avoid danger when the blind encounters obstacles and needs to turn. However, with the fast urban development and construction speed, roads are continuously updated, and traffic problems are increased, so that when the blind person goes out, the blind person can not obtain an optimal trip route in time by means of completely and effectively navigating and distinguishing directions by the blind person guiding dog, great inconvenience is brought to the blind person, and the blind person still has great potential safety hazards when going out.
Disclosure of Invention
The embodiment of the invention provides an intelligent navigation method and device for the trip of a blind person, and solves the technical problems that the blind person cannot obtain an optimal trip route in time when going out, great inconvenience is brought to the trip of the blind person, and potential safety hazards exist when the blind person goes out in the prior art.
In view of the above problems, the embodiments of the present application are provided to provide an intelligent navigation method and apparatus for the blind to go out.
In a first aspect, the present invention provides an intelligent navigation method for the trip of the blind, which is applied to an intelligent navigation platform, wherein the intelligent navigation platform comprises a GPS positioning system, a community data processing system, a city database, and a position sensing transmitter, wherein the GPS positioning system is in communication connection with the community data processing system and the position sensing transmitter, respectively, and the method comprises: obtaining destination information input by a user; the GPS positioning system obtains the current position information of the user sent by the position induction transmitter, wherein the position induction transmitter is arranged on a blind guiding dog; acquiring real-time traffic condition information sent by the city database by using the information consultation interface; the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information; and obtaining first instruction information according to the first path information, and leading the guide dog to advance the user according to the first instruction information.
Preferably, the method further comprises: acquiring a photoelectric signal of the optical cable according to the optical cable laid under the blind sidewalk; judging whether the photoelectric signal meets a first preset condition or not; when the photoelectric signal does not meet the first preset condition, judging whether an obstacle exists in front of the user or not according to the position sensing transmitter; when the obstacle exists, the danger warning device sends a first warning signal and obtains second instruction information according to the first warning signal, so that the guide dog brings the user to reduce the moving speed according to the second instruction information.
Preferably, when there is an obstacle, the hazard warning device sends a first warning signal, and obtains second instruction information according to the first warning signal, so that the guide dog brings the user to reduce the moving speed according to the second instruction information, and further comprising: obtaining a first distance between the current position information of the user and the obstacle according to the current position information of the user; obtaining a second distance between the position information of the user at a second moment and the obstacle; obtaining first error data according to the first distance and the second distance; judging whether the first error data meets a second preset condition or not; and if the first instruction information does not meet the first instruction information, the danger warning device sends a second warning signal, and third instruction information is obtained according to the second warning signal, so that the guide dog brings the user to stop advancing according to the third instruction information.
Preferably, when the first error data meets the second preset condition, the hazard warning device sends a third warning signal, and obtains fourth instruction information according to the third warning signal, so that the guide dog leads the user to advance according to the fourth instruction information.
Preferably, the method further comprises: obtaining a first event according to the city database; obtaining a first processing time length according to the first event; judging whether the first processing time length meets a third preset condition or not; and when the third preset condition is not met, sending a first adjusting instruction to the community data processing system, wherein the first adjusting instruction is used for adjusting the first path information.
Preferably, the method further comprises: obtaining the color and the display duration of the intersection traffic indicator lamp; obtaining an average moving speed of the user; obtaining pre-judging time according to a third distance of the intersection and the third distance and the average moving speed; and comparing the prejudgment time with the display duration, and when the fourth preset condition is not met, acquiring fifth instruction information to enable the guide dog to lead the user to stop advancing according to the fifth instruction information.
In a second aspect, the present invention provides an intelligent navigation device for the blind to go out, the device comprising:
a first obtaining unit configured to obtain destination information input by a user;
the second obtaining unit is used for the GPS to obtain the current position information of the user sent by the position induction transmitter, wherein the position induction transmitter is arranged on a blind guiding dog;
the third obtaining unit is used for obtaining the real-time traffic condition information sent by the city database by using the information consultation interface;
a fourth obtaining unit, configured to obtain, by the community data processing system, first path information according to the real-time traffic condition information, the destination information, and the current location information;
and the fifth obtaining unit is used for obtaining first instruction information according to the first path information so as to lead the guide dog to lead the user to advance according to the first instruction information.
Preferably, the apparatus further comprises:
the sixth obtaining unit is used for obtaining the photoelectric signal of the optical cable according to the optical cable laid under the blind sidewalk;
the first judging unit is used for judging whether the photoelectric signal meets a first preset condition or not;
a second judging unit, configured to judge whether an obstacle exists in front of the user according to the position sensing transmitter when the photoelectric signal does not satisfy the first preset condition;
and the seventh obtaining unit is used for sending a first warning signal by the danger warning device when an obstacle exists, and obtaining second instruction information according to the first warning signal, so that the guide dog leads the user to reduce the moving speed according to the second instruction information.
Preferably, the apparatus further comprises:
an eighth obtaining unit, configured to obtain, according to the current location information of the user, a first distance between the current location information of the user and the obstacle;
a ninth obtaining unit configured to obtain a second distance between the position information of the user at the second time and the obstacle;
a tenth obtaining unit configured to obtain first error data from the first distance and the second distance;
a third judging unit configured to judge whether the first error data satisfies a second preset condition;
and the eleventh obtaining unit is used for sending a second warning signal by the danger warning device when the condition is not met, and obtaining third instruction information according to the second warning signal so that the guide dog leads the user to stop advancing according to the third instruction information.
Preferably, the apparatus further comprises:
and the twelfth obtaining unit is used for sending a third warning signal by the danger warning device when the first error data meets the second preset condition, and obtaining fourth instruction information according to the third warning signal, so that the guide dog leads the user to advance according to the fourth instruction information.
Preferably, the apparatus further comprises:
a thirteenth obtaining unit, configured to obtain a first event according to the city database;
a fourteenth obtaining unit, configured to obtain a first processing time length according to the first event;
a fourth judging unit, configured to judge whether the first processing time length meets a third preset condition;
and the first sending unit is used for sending a first adjusting instruction to the community data processing system when the third preset condition is not met, wherein the first adjusting instruction is used for adjusting the first path information.
Preferably, the apparatus further comprises:
a fifteenth obtaining unit, configured to obtain a color and a display duration of an intersection traffic indicator;
a sixteenth obtaining unit, configured to obtain an average moving speed of the user;
a seventeenth obtaining unit, configured to obtain a prejudgment time according to a third distance of the intersection and according to the third distance and the average moving speed;
and the eighteenth obtaining unit is used for comparing the prejudgment time with the display duration, and obtaining fifth instruction information when the fourth preset condition is not met, so that the guide dog leads the user to stop advancing according to the fifth instruction information.
In a third aspect, the present invention provides an intelligent navigation device for the blind to go out, including a memory, a processor and a computer program stored in the memory and running on the processor, wherein the processor implements the following steps when executing the program: obtaining destination information input by a user; the GPS positioning system obtains the current position information of the user sent by the position induction transmitter, wherein the position induction transmitter is arranged on a blind guiding dog; acquiring real-time traffic condition information sent by the city database by using the information consultation interface; the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information; and obtaining first instruction information according to the first path information, and leading the guide dog to advance the user according to the first instruction information.
In a fourth aspect, the present invention provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of: obtaining destination information input by a user; the GPS positioning system obtains the current position information of the user sent by the position induction transmitter, wherein the position induction transmitter is arranged on a blind guiding dog; acquiring real-time traffic condition information sent by the city database by using the information consultation interface; the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information; and obtaining first instruction information according to the first path information, and leading the guide dog to advance the user according to the first instruction information.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
the embodiment of the invention provides an intelligent navigation method and device for the travel of the blind, which comprises the steps of obtaining destination information input by a user; the GPS positioning system obtains the current position information of the user sent by the position induction transmitter, wherein the position induction transmitter is arranged on a blind guiding dog; acquiring real-time traffic condition information sent by the city database by using the information consultation interface; the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information; according to the first path information, first instruction information is obtained, the guide dog leads the user to go forward according to the first instruction information, the technical effects that the blind can timely obtain external information, the trip route planning of the blind is intelligentized, the life self-care ability of the blind is improved, and the trip is convenient are achieved, so that the technical problem that in the prior art, the best trip route cannot be timely obtained when the blind goes out, great inconvenience is brought to the trip of the blind, and the trip of the blind has potential safety hazards is caused.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Fig. 1 is a schematic flow chart of an intelligent navigation method for the trip of the blind in the embodiment of the invention;
fig. 2 is a schematic structural diagram of an intelligent navigation device for the blind to go out in the embodiment of the invention;
fig. 3 is a schematic structural diagram of another intelligent navigation device for the blind to go out according to the embodiment of the invention.
Description of reference numerals: a first obtaining unit 11, a second obtaining unit 12, a third obtaining unit 13, a fourth obtaining unit 14, a fifth obtaining unit 15, a bus 300, a receiver 301, a processor 302, a transmitter 303, a memory 304, and a bus interface 306.
Detailed Description
The embodiment of the invention provides an intelligent navigation method and device for the trip of a blind person, which are used for solving the technical problems that the blind person cannot obtain an optimal trip route in time when going out, great inconvenience is brought to the trip of the blind person, and potential safety hazards exist when the blind person goes out in the prior art.
The technical scheme provided by the invention has the following general idea:
obtaining destination information input by a user; the GPS positioning system obtains the current position information of the user sent by the position induction transmitter, wherein the position induction transmitter is arranged on a blind guiding dog; acquiring real-time traffic condition information sent by the city database by using the information consultation interface; the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information; the first instruction information is obtained according to the first path information, and the guide dog leads the user to go forward according to the first instruction information, so that the blind can obtain external information in time, the intellectualization of the trip route planning of the blind is realized, the life self-care ability of the blind is improved, and the technical effect of facilitating the trip is achieved.
The technical solutions of the present invention are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present invention are described in detail in the technical solutions of the present application, and are not limited to the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Example one
Fig. 1 is a schematic flow chart of an intelligent navigation method for the trip of the blind in the embodiment of the invention. As shown in fig. 1, an embodiment of the present invention provides an intelligent navigation method for the travel of the blind, which is applied to an intelligent navigation platform, where the intelligent navigation platform includes a GPS positioning system, an information consultation interface, a community data processing system, a city database, and a location-sensitive transmitter, where the GPS positioning system is in communication connection with the community data processing system and the location-sensitive transmitter, respectively, and the method includes:
step 110: destination information input by a user is obtained.
Specifically, the destination is a place that the user wants to go to, for example, when the user wants to go to a coffee shop, a shopping mall or sit in a public transport, since the user is a visually impaired person, when the user inputs the place to go, the user can input the place to the intelligent navigation platform through voice input or through a touch screen, and after the user sends the place to which the user wants to go to the intelligent navigation platform, the intelligent navigation platform performs the next processing.
Step 120: the GPS positioning system obtains the current position information of the user sent by the position induction transmitter, wherein the position induction transmitter is arranged on a blind guiding dog.
Specifically, GPS is a short for the Global Positioning System (Global Positioning System), and a System that uses GPS Positioning satellites to perform Positioning and navigation in real time in a Global area can provide navigation information such as low-cost and high-precision three-dimensional position, speed, and accurate timing for Global users, which is an application model of satellite communication technology in the navigation field, and greatly improves the informatization level of the Global society, and strongly promotes the development of digital economy. In this embodiment, after the position sensing transmitter is installed on the neck of the blind guiding dog of the user or at other places, when the blind needs to go out, the position of the blind guiding dog can represent the position of the blind, so the current position information of the user can be collected by the position sensing transmitter installed on the blind guiding dog, wherein the current position information is the place where the user is located, the position sensing transmitter is in communication connection with the GPS positioning system, and then the current position information of the user can be received by the GPS positioning system, and the subsequent work processing is performed.
Step 130: and acquiring real-time traffic condition information sent from the city database by using the information consultation interface.
Specifically, the information consultation interface is an intelligent link and consultation system interface connected with the vehicle system, and further, the vehicle system in the embodiment is connected with the city database, when a user needs to obtain related vehicle information or traffic condition information, the user can input an instruction to the information consultation interface, and then the traffic condition information sent from the city database can be obtained after the information consultation interface and the vehicle system perform information interaction. Therefore, the urban traffic condition information can be acquired in real time through the urban data processing system, meanwhile, after the urban traffic condition information is acquired, the urban traffic condition can be timely mastered by analyzing the big data, the real-time traffic information can be sent to the vehicle system, and information interaction is realized through the vehicle system and the information consultation interface. The city database is a place for storing relevant city information, such as traffic information, weather information, population information, travel information and the like of a city, has a large storage space, and can store millions of data, millions of data and hundreds of millions of data. Meanwhile, in the embodiment, the city database can also send real-time traffic information to a community data processing system, or a traffic broadcasting station, a traffic command center and the like, so that information can be timely provided for a needed platform, convenient information is provided for a user, and the user can conveniently arrange own travel route according to actual conditions.
Step 140: and the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information.
Specifically, the community data processing system is a database for storing specific community related information, and the community data processing system is in communication connection with the city database, so that the community data processing system can perform information interaction with the city database, therefore, real-time traffic condition information of a community corresponding to a user can be obtained from the city database through the community data processing system, and after the real-time traffic condition information, destination information and current position information are subjected to optimization analysis processing, first path information can be obtained, wherein the first path information is an optimal travel route for the user to go from a current position to a destination.
Step 150: and obtaining first instruction information according to the first path information, and leading the guide dog to advance the user according to the first instruction information.
Specifically, after the optimal travel route from the current position to the destination of the user is obtained, the intelligent navigation platform obtains first instruction information according to the first route information, and then sends the first instruction information to the guide dog, so that the guide dog can take the user to travel to the destination according to the optimal travel route after receiving the instruction.
Further, the method further comprises: acquiring a photoelectric signal of the optical cable according to the optical cable laid under the blind sidewalk; judging whether the photoelectric signal meets a first preset condition or not; when the photoelectric signal does not meet the first preset condition, judging whether an obstacle exists in front of the user or not according to the position sensing transmitter; when the obstacle exists, the danger warning device sends a first warning signal and obtains second instruction information according to the first warning signal, so that the guide dog brings the user to reduce the moving speed according to the second instruction information.
In particular, blind sidewalks are road facilities that are dedicated to helping blind people walk. The blind sidewalk is generally paved by two types of bricks, one type is a strip-shaped guide brick which is called as a traveling blind sidewalk and guides the blind to walk forward with confidence; one is a prompting brick with round points to prompt the blind to have an obstacle in front of the blind, and the blind turns a corner, which is called as a prompting blind road. In this embodiment, a cable or an optical cable is correspondingly installed below the blind sidewalk, so in actual work, it is necessary to collect a photoelectric signal of the cable or the optical cable below the blind sidewalk where the user is traveling, and then determine whether the photoelectric signal is a continuous signal, and when the photoelectric signal is continuous, it indicates that the road section is a safe road section, and the user can continue traveling. When the photoelectric signal is a discontinuous signal, it indicates that a road in front of which the user runs is broken or is an obstacle, and the like, so as to further determine which type of potential safety hazard in front of the user, the situation in front of the user can be collected by the position sensing transmitter at the moment, and then whether the obstacle exists in front is judged, when the obstacle exists, the danger warning device sends a first warning signal, and then the intelligent navigation platform obtains second instruction information according to the first warning signal, and then sends the second instruction information to the blind guiding dog, so that the blind guiding dog can take the user to reduce the current running speed and slowly move forward after receiving the instruction.
Further, when there is an obstacle, the hazard warning device sends a first warning signal, and obtains second instruction information according to the first warning signal, so that the guide dog brings the user to reduce the moving speed according to the second instruction information, further comprising: obtaining a first distance between the current position information of the user and the obstacle according to the current position information of the user; obtaining a second distance between the position information of the user at a second moment and the obstacle; obtaining first error data according to the first distance and the second distance; judging whether the first error data meets a second preset condition or not; and if the first instruction information does not meet the first instruction information, the danger warning device sends a second warning signal, and third instruction information is obtained according to the second warning signal, so that the guide dog brings the user to stop advancing according to the third instruction information.
Specifically, when the guide dog leads the user to slowly move forward after receiving the instruction, the real-time position information of the user is obtained through the position sensing transmitter, then the first distance between the user and the obstacle is further obtained through the current position of the user and the position of the obstacle, then the real-time position information of the user at the second moment is obtained through the position sensing transmitter at the next moment, and then the second distance between the user and the obstacle is further obtained through the current position of the user at the second moment and the position of the obstacle. Further, according to the first distance at the first moment and the second distance at the second moment, error data can be calculated, whether the error data is approximately the same as the average walking speed of the user after the user slows down is judged, when the difference between the error data and the average walking speed is large, the obstacle in front of the user is a dynamic obstacle, the danger warning device sends a second warning signal, the intelligent navigation platform obtains third instruction information according to the second warning signal, and the third instruction information is sent to the blind guiding dog. For example, when the user and the led guide dog move forward slowly at a speed of 1m/s, at the first moment, the distance between the user and the obstacle is 20m, and after 2s, the distance between the user and the obstacle is 5m, which indicates that the distance between the user and the obstacle is shortened to 5m within two seconds, and the obstacle in front of the user and the user move in the same direction, so that the obstacle in front can be judged to be a dynamic object, possibly a vehicle, an animal and the like, and therefore, the user needs to wait for the obstacle to pass through in place when stopping moving forward, so that any potential safety hazard can be prevented from occurring to the user, and the personal safety of the user can be guaranteed.
Further, when the first error data meets the second preset condition, the danger warning device sends a third warning signal, and obtains fourth instruction information according to the third warning signal, so that the guide dog leads the user to advance according to the fourth instruction information.
Specifically, as described above, when the error data is substantially the same as the average walking speed, it indicates that the obstacle in front of the user is a static obstacle, the hazard warning device sends the third warning signal, the intelligent navigation platform obtains the fourth instruction information according to the third warning signal, and then sends the fourth instruction information to the guide dog, so that the guide dog can take the user to go around the way after receiving the instruction. For example, when the user and the led guide dog move forward slowly at a speed of 1m/s, the distance between the user and the obstacle is 20m at the first moment, and after 2s, the distance between the user and the obstacle is 18m, which indicates that the position of the obstacle in front of the user does not change within two seconds, and the obstacle is a static object, such as a tree, a sign pole, and the like, and can continue to move forward, and the user can detour when passing through the obstacle, thereby further ensuring the personal safety of the user.
Further, the method further comprises: obtaining a first event according to the city database; obtaining a first processing time length according to the first event; judging whether the first processing time length meets a third preset condition or not; and when the third preset condition is not met, sending a first adjusting instruction to the community data processing system, wherein the first adjusting instruction is used for adjusting the first path information.
Specifically, the first event is an emergency occurring in front of a user, then the corresponding processing time length can be obtained according to the type of the emergency, then whether the processing time length of the emergency meets a preset condition or not is judged, namely whether the emergency can be processed by the user before the user is finished or not is judged, and when the processing cannot be finished, the user needs to obtain a route again before the user arrives at the place. For example, a traffic accident suddenly occurs 500m ahead of the first route of the user, the processing time for displaying the traffic accident according to big data is generally 1 hour, and the traffic accident cannot be processed when the user advances to the place of affairs according to the speed of the user, so that the target route of the user needs to be adjusted, thereby saving the time of the user and improving the traveling efficiency of the user.
Further, the method further comprises: obtaining the color and the display duration of the intersection traffic indicator lamp; obtaining an average moving speed of the user; obtaining pre-judging time according to a third distance of the intersection and the third distance and the average moving speed; and comparing the prejudgment time with the display duration, and when the fourth preset condition is not met, acquiring fifth instruction information to enable the guide dog to lead the user to stop advancing according to the fifth instruction information.
Specifically, when a user and a blind guiding dog reach a traffic light intersection, the color and the display time of the traffic light at the intersection can be collected, then the distance of the intersection where the user needs to go forward is further obtained, then the time needed by the user to pass through the intersection is obtained through calculation according to the average moving speed of the user and the distance of the intersection, and the estimated time is compared with the display time of the green light.
Example two
Based on the same inventive concept as the intelligent navigation method for the trip of the blind, the invention also provides an intelligent navigation method and device for the trip of the blind, as shown in fig. 2, the device comprises:
a first obtaining unit 11, wherein the first obtaining unit 11 is used for obtaining destination information input by a user;
a second obtaining unit 12, where the second obtaining unit 12 is configured to obtain, by the GPS positioning system, current location information of the user sent by the location-sensing transmitter, where the location-sensing transmitter is installed on a guide dog;
a third obtaining unit 13, where the third obtaining unit 13 is configured to obtain real-time traffic condition information sent from the city database by using the information consulting interface;
a fourth obtaining unit 14, where the fourth obtaining unit 14 is configured to obtain, by the community data processing system, first path information according to the real-time traffic condition information, the destination information, and the current location information;
a fifth obtaining unit 15, where the fifth obtaining unit 15 is configured to obtain first instruction information according to the first path information, so that the guide dog leads the user to advance according to the first instruction information.
Further, the apparatus further comprises:
the sixth obtaining unit is used for obtaining the photoelectric signal of the optical cable according to the optical cable laid under the blind sidewalk;
the first judging unit is used for judging whether the photoelectric signal meets a first preset condition or not;
a second judging unit, configured to judge whether an obstacle exists in front of the user according to the position sensing transmitter when the photoelectric signal does not satisfy the first preset condition;
and the seventh obtaining unit is used for sending a first warning signal by the danger warning device when an obstacle exists, and obtaining second instruction information according to the first warning signal, so that the guide dog leads the user to reduce the moving speed according to the second instruction information.
Further, the apparatus further comprises:
an eighth obtaining unit, configured to obtain, according to the current location information of the user, a first distance between the current location information of the user and the obstacle;
a ninth obtaining unit configured to obtain a second distance between the position information of the user at the second time and the obstacle;
a tenth obtaining unit configured to obtain first error data from the first distance and the second distance;
a third judging unit configured to judge whether the first error data satisfies a second preset condition;
and the eleventh obtaining unit is used for sending a second warning signal by the danger warning device when the condition is not met, and obtaining third instruction information according to the second warning signal so that the guide dog leads the user to stop advancing according to the third instruction information.
Further, the apparatus further comprises:
and the twelfth obtaining unit is used for sending a third warning signal by the danger warning device when the first error data meets the second preset condition, and obtaining fourth instruction information according to the third warning signal, so that the guide dog leads the user to advance according to the fourth instruction information.
Further, the apparatus further comprises:
a thirteenth obtaining unit, configured to obtain a first event according to the city database;
a fourteenth obtaining unit, configured to obtain a first processing time length according to the first event;
a fourth judging unit, configured to judge whether the first processing time length meets a third preset condition;
and the first sending unit is used for sending a first adjusting instruction to the community data processing system when the third preset condition is not met, wherein the first adjusting instruction is used for adjusting the first path information.
Further, the apparatus further comprises:
a fifteenth obtaining unit, configured to obtain a color and a display duration of an intersection traffic indicator;
a sixteenth obtaining unit, configured to obtain an average moving speed of the user;
a seventeenth obtaining unit, configured to obtain a prejudgment time according to a third distance of the intersection and according to the third distance and the average moving speed;
and the eighteenth obtaining unit is used for comparing the prejudgment time with the display duration, and obtaining fifth instruction information when the fourth preset condition is not met, so that the guide dog leads the user to stop advancing according to the fifth instruction information.
Various changes and specific examples of the intelligent navigation method for the blind person to go out in the first embodiment of fig. 1 are also applicable to the intelligent navigation device for the blind person to go out in the present embodiment, and through the foregoing detailed description of the intelligent navigation method for the blind person to go out, a person skilled in the art can clearly know an implementation method of the intelligent navigation device for the blind person to go out in the present embodiment, so for the sake of brevity of the description, detailed descriptions are not repeated here.
EXAMPLE III
Based on the same inventive concept as the intelligent navigation method for the blind person to go out in the previous embodiment, the invention further provides an intelligent navigation device for the blind person to go out, wherein a computer program is stored on the intelligent navigation device, and when the computer program is executed by a processor, the steps of any one of the methods of the intelligent navigation method for the blind person to go out are realized.
Where in fig. 3 a bus architecture (represented by bus 300), bus 300 may include any number of interconnected buses and bridges, bus 300 linking together various circuits including one or more processors, represented by processor 302, and memory, represented by memory 304. The bus 300 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 306 provides an interface between the bus 300 and the receiver 301 and transmitter 303. The receiver 301 and the transmitter 303 may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium.
The processor 302 is responsible for managing the bus 300 and general processing, and the memory 304 may be used for storing data used by the processor 302 in performing operations.
Example four
Based on the same inventive concept as the intelligent navigation method for the trip of the blind, the invention further provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the following steps: obtaining destination information input by a user; the GPS positioning system obtains the current position information of the user sent by the position induction transmitter, wherein the position induction transmitter is arranged on a blind guiding dog; acquiring real-time traffic condition information sent by the city database by using the information consultation interface; the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information; and obtaining first instruction information according to the first path information, and leading the guide dog to advance the user according to the first instruction information.
In a specific implementation, when the program is executed by a processor, any method step in the first embodiment may be further implemented.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
the embodiment of the invention provides an intelligent navigation method and device for the travel of the blind, which comprises the steps of obtaining destination information input by a user; the GPS positioning system obtains the current position information of the user sent by the position induction transmitter, wherein the position induction transmitter is arranged on a blind guiding dog; acquiring real-time traffic condition information sent by the city database by using the information consultation interface; the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information; according to the first path information, first instruction information is obtained, the guide dog leads the user to go forward according to the first instruction information, the technical effects that the blind can timely obtain external information, the trip route planning of the blind is intelligentized, the life self-care ability of the blind is improved, and the trip is convenient are achieved, so that the technical problem that in the prior art, the best trip route cannot be timely obtained when the blind goes out, great inconvenience is brought to the trip of the blind, and the trip of the blind has potential safety hazards is caused.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. An intelligent navigation method for the trip of the blind is applied to an intelligent navigation platform, the intelligent navigation platform comprises a GPS positioning system, an information consultation interface, a community data processing system, a city database and a position induction transmitter, wherein the GPS positioning system is respectively in communication connection with the community data processing system and the position induction transmitter, and the method is characterized by comprising the following steps:
obtaining destination information input by a user;
the GPS positioning system obtains the current position information of the user sent by the position induction transmitter, wherein the position induction transmitter is arranged on a blind guiding dog;
acquiring real-time traffic condition information sent by the city database by using the information consultation interface;
the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information;
acquiring first instruction information according to the first path information, and leading the guide dog to advance the user according to the first instruction information;
acquiring a photoelectric signal of the optical cable according to the optical cable laid under the blind sidewalk;
judging whether the photoelectric signal meets a first preset condition, wherein the first preset condition is that the photoelectric signal is a continuous signal;
when the photoelectric signal does not meet the first preset condition, judging whether an obstacle exists in front of the user or not according to the position sensing transmitter;
when an obstacle exists, the danger warning device sends a first warning signal and obtains second instruction information according to the first warning signal, so that the guide dog brings the user to reduce the moving speed according to the second instruction information;
obtaining a first distance between the current position information of the user and the obstacle according to the current position information of the user;
obtaining a second distance between the position information of the user at a second moment and the obstacle;
obtaining first error data according to the first distance and the second distance;
judging whether the first error data meet a second preset condition, wherein the second preset condition is that the error data are the same as the average walking speed of the user;
if the first instruction information does not meet the first instruction information, the danger warning device sends a second warning signal, third instruction information is obtained according to the second warning signal, and the guide dog brings the user to stop advancing according to the third instruction information;
and when the first error data meets the second preset condition, the danger warning device sends a third warning signal and obtains fourth instruction information according to the third warning signal, so that the guide dog leads the user to advance according to the fourth instruction information.
2. The method of claim 1, wherein the method further comprises:
obtaining a first event according to the city database;
obtaining a first processing time length according to the first event;
judging whether the first processing time length meets a third preset condition or not;
and when the third preset condition is not met, sending a first adjusting instruction to the community data processing system, wherein the first adjusting instruction is used for adjusting the first path information.
3. The method of claim 1, wherein the method further comprises:
obtaining the color and the display duration of the intersection traffic indicator lamp;
obtaining an average moving speed of the user;
obtaining pre-judging time according to a third distance of the intersection and the third distance and the average moving speed;
and comparing the prejudgment time with the display duration, and when a fourth preset condition is not met, acquiring fifth instruction information to enable the guide dog to lead the user to stop advancing according to the fifth instruction information.
4. An intelligent navigation device for the trip of the blind, characterized in that the device comprises:
a first obtaining unit configured to obtain destination information input by a user;
the second obtaining unit is used for a GPS (global positioning system) to obtain the current position information of the user sent by a position sensing transmitter, wherein the position sensing transmitter is arranged on a guide dog;
the third acquisition unit is used for acquiring real-time traffic condition information sent by the urban database by using the information consultation interface;
the fourth obtaining unit is used for the community data processing system to obtain the first path information according to the real-time traffic condition information, the destination information and the current position information;
a fifth obtaining unit, configured to obtain first instruction information according to the first path information, and enable the guide dog to lead the user to advance according to the first instruction information;
the sixth obtaining unit is used for obtaining the photoelectric signal of the optical cable according to the optical cable laid under the blind sidewalk;
judging whether the photoelectric signal meets a first preset condition, wherein the first preset condition is that the photoelectric signal is a continuous signal;
when the photoelectric signal does not meet the first preset condition, judging whether an obstacle exists in front of the user or not according to the position sensing transmitter;
the seventh obtaining unit is used for sending a first warning signal by the danger warning device when an obstacle exists, obtaining second instruction information according to the first warning signal and leading the guide dog to reduce the moving speed of the user according to the second instruction information;
an eighth obtaining unit, configured to obtain, according to the current location information of the user, a first distance between the current location information of the user and the obstacle;
a ninth obtaining unit configured to obtain a second distance between the position information of the user at the second time and the obstacle;
a tenth obtaining unit configured to obtain first error data from the first distance and the second distance;
judging whether the first error data meet a second preset condition, wherein the second preset condition is that the error data are the same as the average walking speed of the user;
an eleventh obtaining unit, configured to, when the first instruction information does not meet the first instruction information, send a second warning signal to the hazard alarm, and obtain third instruction information according to the second warning signal, so that the guide dog leads the user to stop advancing according to the third instruction information;
and the twelfth obtaining unit is used for sending a third warning signal by the danger warning device when the first error data meets the second preset condition, and obtaining fourth instruction information according to the third warning signal, so that the guide dog leads the user to advance according to the fourth instruction information.
5. An intelligent navigation device for the travel of the blind, comprising a memory, a processor and a computer program stored on the memory and capable of running on the processor, characterized in that the processor implements the following steps when executing the program:
obtaining destination information input by a user;
the GPS positioning system obtains the current position information of the user sent by a position induction transmitter, wherein the position induction transmitter is arranged on a guide dog;
acquiring real-time traffic condition information sent by a city database by using an information consultation interface;
the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information;
acquiring first instruction information according to the first path information, and leading the guide dog to advance the user according to the first instruction information;
acquiring a photoelectric signal of the optical cable according to the optical cable laid under the blind sidewalk;
judging whether the photoelectric signal meets a first preset condition, wherein the first preset condition is that the photoelectric signal is a continuous signal;
when the photoelectric signal does not meet the first preset condition, judging whether an obstacle exists in front of the user or not according to the position sensing transmitter;
when an obstacle exists, the danger warning device sends a first warning signal and obtains second instruction information according to the first warning signal, so that the guide dog brings the user to reduce the moving speed according to the second instruction information;
obtaining a first distance between the current position information of the user and the obstacle according to the current position information of the user;
obtaining a second distance between the position information of the user at a second moment and the obstacle;
obtaining first error data according to the first distance and the second distance;
judging whether the first error data meet a second preset condition, wherein the second preset condition is that the error data are the same as the average walking speed of the user;
if the first instruction information does not meet the first instruction information, the danger warning device sends a second warning signal, third instruction information is obtained according to the second warning signal, and the guide dog brings the user to stop advancing according to the third instruction information;
and when the first error data meets the second preset condition, the danger warning device sends a third warning signal and obtains fourth instruction information according to the third warning signal, so that the guide dog leads the user to advance according to the fourth instruction information.
6. A computer-readable storage medium, on which a computer program is stored, which program, when executed by a processor, carries out the steps of:
obtaining destination information input by a user;
the GPS positioning system obtains the current position information of the user sent by a position induction transmitter, wherein the position induction transmitter is arranged on a guide dog;
acquiring real-time traffic condition information sent by a city database by using an information consultation interface;
the community data processing system acquires first path information according to the real-time traffic condition information, the destination information and the current position information;
acquiring first instruction information according to the first path information, and leading the guide dog to advance the user according to the first instruction information;
acquiring a photoelectric signal of the optical cable according to the optical cable laid under the blind sidewalk;
judging whether the photoelectric signal meets a first preset condition, wherein the first preset condition is that the photoelectric signal is a continuous signal;
when the photoelectric signal does not meet the first preset condition, judging whether an obstacle exists in front of the user or not according to the position sensing transmitter;
when an obstacle exists, the danger warning device sends a first warning signal and obtains second instruction information according to the first warning signal, so that the guide dog brings the user to reduce the moving speed according to the second instruction information;
obtaining a first distance between the current position information of the user and the obstacle according to the current position information of the user;
obtaining a second distance between the position information of the user at a second moment and the obstacle;
obtaining first error data according to the first distance and the second distance;
judging whether the first error data meet a second preset condition, wherein the second preset condition is that the error data are the same as the average walking speed of the user;
if the first instruction information does not meet the first instruction information, the danger warning device sends a second warning signal, third instruction information is obtained according to the second warning signal, and the guide dog brings the user to stop advancing according to the third instruction information;
and when the first error data meets the second preset condition, the danger warning device sends a third warning signal and obtains fourth instruction information according to the third warning signal, so that the guide dog leads the user to advance according to the fourth instruction information.
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| CN113101155A (en) * | 2021-03-31 | 2021-07-13 | 电子科技大学成都学院 | Traffic light intersection blind guiding method and blind guiding device based on machine vision |
| CN116076387B (en) * | 2023-02-09 | 2023-07-28 | 深圳市爱丰达盛科技有限公司 | Guide dog training navigation intelligent management system |
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