CN110448437B - Blind guiding stick capable of controlling lifting column of crosswalk safety island - Google Patents

Blind guiding stick capable of controlling lifting column of crosswalk safety island Download PDF

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Publication number
CN110448437B
CN110448437B CN201910848588.9A CN201910848588A CN110448437B CN 110448437 B CN110448437 B CN 110448437B CN 201910848588 A CN201910848588 A CN 201910848588A CN 110448437 B CN110448437 B CN 110448437B
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lifting column
module
voice
data
blind
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CN110448437A (en
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马昌喜
李麒年
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Lanzhou Jiaotong University
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Lanzhou Jiaotong University
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL 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
    • A61H3/00Appliances for aiding patients or disabled persons to walk about
    • A61H3/06Walking aids for blind persons
    • A61H3/061Walking aids for blind persons with electronic detecting or guiding means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL 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
    • A61H3/00Appliances for aiding patients or disabled persons to walk about
    • A61H3/06Walking aids for blind persons
    • A61H3/068Sticks for blind persons
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F13/00Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/04Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
    • E01F13/044Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface
    • E01F13/046Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface the obstructing members moving up in a translatory motion, e.g. telescopic barrier posts
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/02Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL 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
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50Control means thereof
    • A61H2201/5007Control means thereof computer controlled
    • A61H2201/501Control means thereof computer controlled connected to external computer devices or networks
    • A61H2201/5012Control means thereof computer controlled connected to external computer devices or networks using the internet
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL 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
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50Control means thereof
    • A61H2201/5023Interfaces to the user
    • A61H2201/5048Audio interfaces, e.g. voice or music controlled

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Public Health (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Signal Processing (AREA)
  • Traffic Control Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

The invention relates to the technical field of intelligent traffic, in particular to a blind guiding stick capable of controlling a lifting column of a crosswalk safety island; the system comprises a central processing system, a data acquisition part, a wireless transmission part and a positioning part; the central processing system is used for receiving positioning information sent by the positioning part at the same time, analyzing and processing the data, and then utilizing the wireless transmission part to realize interaction with the intelligent lifting column to control the lifting of the lifting column; the invention can control the lifting column to realize automatic lifting when the blind passes through the crosswalk, is convenient for the blind to safely pass through the crosswalk, and has good market application prospect.

Description

Blind guiding stick capable of controlling lifting column of crosswalk safety island
Technical Field
The invention relates to the technical field of intelligent traffic, in particular to a blind guiding stick capable of controlling a lifting column of a crosswalk safety island.
Background
In order to prevent vehicles from turning around randomly to influence traffic and prevent traffic accidents, people in China are provided with pedestrian crossing posts at the center of safety islands and pedestrian crossings of many pedestrian crossings. The crosswalk column effectively avoids the occurrence of such events. The travelator column does not cause an obstacle to walking for normal pedestrians, but is an obstacle for disabled persons, especially blind persons who cannot see anything and disabled persons who need to travel with a wheelchair. The blind person can be collided by the crosswalk column when the crosswalk column is not seen, if the blind person has other diseases, the blind person can cause irrecoverable results, and life can be endangered in serious cases; therefore, the blind guiding stick capable of controlling the lifting of the intelligent lifting column is particularly important, and not only is the road tolerance shown, but also the care of the disabled by the road is shown.
Zigbee technology: zigbee, wireless communication technology (Zigbee bees), zigbee is a wireless network protocol for low-speed short-range transmission. The advantages are that: short-range transmission, low power consumption, low cost, low complexity, and all the advantages specified by the radio physical layer. The bottom layer adopts the media access layer and the physical layer of IEEE802.15.4 standard specification, and is very suitable for the fields of automatic control and remote control.
Magnetic coupling resonance technology: the resonance coupling between two coils with the same resonance frequency is used to transfer energy from a source to a load with a transceiver antenna, thereby realizing connectionless wireless charging.
Disclosure of Invention
Aiming at the defects of the prior art, the invention discloses a blind guiding stick capable of controlling a lifting column of a crosswalk safety island, which can perform non-contact interaction with the lifting column of the crosswalk safety island, can control the lifting column to realize automatic lifting when a blind person passes through the crosswalk, and is convenient for the blind person to safely pass through the crosswalk.
The invention is realized by the following technical scheme:
the blind guiding stick capable of controlling the lifting column of the crosswalk safety island comprises a blind guiding stick, a central processing system, a data acquisition part, a wireless transmission part and a positioning part; the system comprises a central processing system, a data acquisition part, a wireless transmission part and a positioning part, wherein the central processing system, the data acquisition part, the wireless transmission part and the positioning part are arranged in the blind guiding stick, the data acquisition part acquires and identifies user and real scene data and sends the acquired data to the central processing system, the central processing system simultaneously receives positioning information sent by the positioning part, and the wireless transmission part is used for realizing interaction with an intelligent lifting column after the data are analyzed and processed to control the lifting of the lifting column.
Furthermore, the central processing system integrates a storage unit, a central processing unit, a voice prompt unit, a battery unit, an accident automatic alarm unit and a wireless charging module and is used for data processing analysis and control signal transmission;
the data acquisition part comprises a voice recognition unit, a miniature camera, a fingerprint recognition module and a pressure sensing device, and is used for acquiring live-action data, voice data, fingerprint data and pressure data;
the wireless transmission part integrates a ZigBee chip, a SIM card reading module and a network signal access unit and is used for interacting with the intelligent lifting column;
the positioning part is a GPS positioning module and is used for updating the position information of the blind guiding stick user in real time.
Furthermore, the fingerprint identification module and the pressure sensing device are used for controlling the Zigbee chip to be started, and when the fingerprint identification is successful and reaches a preset pressure value, the central processing system controls the Zigbee chip to start to interact with the intelligent lifting column.
Furthermore, the SIM card reading module and the network access unit are used for reading the SIM card installed in the blind stick and accessing the operator network to realize interaction with the mobile terminal.
Further, the storage unit stores the temporary file and identity information of the blind person, and the voice recognition unit is used for recognizing a voice instruction for guiding the blind person; the voice prompt unit is used for guiding the blind person to the road, and the accident automatic alarm unit automatically alarms to the traffic police department and transmits on-site information when the blind person is detected to be damaged.
Further, the ZigBee chip integrates a sensor module, a processor module, a wireless communication module and an energy supply module; the sensor module monitors the collection of relevant equipment data in the area and performs A/D conversion on the collected data;
the processor module controls the action of the whole sensor node, and stores and processes the collected data and the received data;
the wireless communication module receives and transmits related data and exchanges control information with other nodes, so that wireless communication of other sensor nodes in the same network is realized.
Further, after receiving the input of the analog signal of the voice, the voice recognition unit converts the analog signal into a digital signal, then starts to acquire a voice characteristic value based on a voice-on method to form a voice mode to be matched, starts to match the voice digital signal to be matched with a trained voice template in the system, and after the matching is finished, the system feeds back the closest matching result to the central processing unit.
Furthermore, the fingerprint sensing device reads the fingerprint image of the human body through the fingerprint reading equipment, performs original image input, preprocessing, fingerprint feature extraction and fingerprint identification, and finally outputs the identification result.
Furthermore, the matching process of fingerprint identification comprises primary matching of matching by constructing local feature vectors of feature points, coordinate calibration of feature point sets based on the primary matching result, secondary matching of the calibrated point sets and final tertiary matching of judging the matching result.
Further, the miniature camera comprises a camera, a main control MCU chip, a storage module, a motor, a color filter and a communication module; when the identification is needed, the MCU sends out a signal, an optical filter is selected and photographed, after photographing, the main control MCU chip performs identification, the identified reading is sent to the central processing system through the communication module, the color optical filter is covered on an LED of the camera, light emitted by the LED irradiates a metering display area through the optical filter, the color is changed due to the effect of the optical filter, and the color is stored in the storage module as identified comparison data.
The beneficial effects of the invention are as follows:
the invention processes and synthesizes information by the central processing unit, the voice prompt unit prompts the blind person by voice to guide the blind person on a proper road, the battery unit supplies electric quantity for the normal use of the blind guiding stick, the wireless receiver is used for receiving electric energy to carry out wireless charging, the situation that the blind guiding stick stops working because of no electricity and can not continuously guide the blind person is avoided, and the lifting column can be controlled to realize automatic lifting when the blind person passes through the crosswalk, thereby facilitating the blind person to safely pass through the crosswalk.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a blind guiding stick according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an intelligent lifting column according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the principle of the ZigBee chip of the present invention;
FIG. 4 is a schematic diagram of a speech recognition unit of the present invention;
reference numerals in the drawings represent respectively:
1. a miniature camera; 2. a fingerprint identification module; 3. a pressure sensing device; 4. a ZigBee chip; 5. a GPS positioning module; 6. a SIM card reading module; 7. a battery unit; 8. lifting columns; 9. ZigBee node; 10. a ZigBee module; 11. a wireless communication module; 12. a signal processing device; 13. an automatic lifting device; 14. an electric storage device; 15. a vibration energy induction conversion device; 16. a protective material; 17. solar photovoltaic panels.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The embodiment discloses a blind guiding stick capable of controlling a lifting column of a crosswalk safety island, which is shown in fig. 1, and comprises a blind guiding stick, a central processing system, a data acquisition part, a wireless transmission part and a positioning part; the system comprises a central processing system, a data acquisition part, a wireless transmission part and a positioning part, wherein the central processing system, the data acquisition part, the wireless transmission part and the positioning part are arranged in the blind guiding stick, the data acquisition part acquires and identifies user and real scene data and sends the acquired data to the central processing system, the central processing system simultaneously receives positioning information sent by the positioning part, and the wireless transmission part is used for realizing interaction with an intelligent lifting column after the data are analyzed and processed to control the lifting of the lifting column.
The central processing system integrates a storage unit, a central processing unit, a voice prompt unit, a battery unit, an accident automatic alarm unit and a wireless charging module and is used for data processing analysis and control signal transmission;
the data acquisition part comprises a voice recognition unit, a miniature camera, a fingerprint recognition module and a pressure sensing device, and is used for acquiring live-action data, voice data, fingerprint data and pressure data;
the wireless transmission part integrates a ZigBee chip, a SIM card reading module and a network signal access unit and is used for interacting with the intelligent lifting column;
the positioning part is a GPS positioning module and is used for updating the position information of the blind guiding stick user in real time.
The fingerprint identification module and the pressure sensing device are used for controlling the start of the Zigbee chip, and when the fingerprint identification is successful and reaches a preset pressure value, the central processing system controls the Zigbee chip to start to interact with the intelligent lifting column.
The SIM card reading module and the network access unit are used for reading the SIM card installed in the blind stick and accessing the operator network, so that interaction with the mobile terminal is realized.
The storage unit stores the temporary file and identity information of the blind person, and the voice recognition unit is used for recognizing a voice instruction for guiding the blind person; the voice prompt unit is used for guiding the blind person to the road, and the accident automatic alarm unit automatically alarms to the traffic police department and transmits on-site information when the blind person is detected to be damaged.
As shown in fig. 3, the ZigBee chip integrates a sensor module, a processor module, a wireless communication module, and an energy supply module;
the sensor module monitors the collection of relevant equipment data in the area and performs A/D conversion on the collected data;
the processor module controls the action of the whole sensor node, and stores and processes the collected data and the received data;
the wireless communication module receives and transmits related data and exchanges control information with other nodes, so that wireless communication of other sensor nodes in the same network is realized.
As shown in fig. 4, after receiving the input of the analog signal of the voice, the voice recognition unit converts the analog signal into a digital signal, then starts to acquire the voice characteristic value based on the voice-on method to form a voice mode to be matched, matches the voice digital signal to be matched with the trained voice template in the system, and after the matching is finished, the system feeds back the closest matching result to the central processing unit.
The fingerprint sensing device reads the fingerprint image of the human body through the fingerprint reading equipment, performs original image input, preprocessing, fingerprint feature extraction and fingerprint identification, and finally outputs the identification result.
The fingerprint identification matching process comprises the steps of carrying out primary matching of matching by constructing local feature vectors of feature points, carrying out coordinate calibration of a feature point set based on the primary matching result, carrying out secondary matching of matching on the calibrated point set, and finally carrying out tertiary matching of judging on the matching result.
The miniature camera comprises a camera, a main control MCU chip, a storage module, a stepping motor, a color filter and a communication module; when the identification is needed, the MCU sends out a signal, an optical filter is selected and photographed, after photographing, the main control MCU chip performs identification, the identified reading is sent to the central processing system through the communication module, the color optical filter is covered on an LED of the camera, light emitted by the LED irradiates a metering display area through the optical filter, the color is changed due to the effect of the optical filter, and the color is stored in the storage module as identified comparison data.
Example 2
The embodiment discloses a blind guiding stick with a function of controlling a lifting column of a crosswalk safety island as shown in fig. 2, which mainly comprises a GPS chip and a miniature camera, wherein the GPS chip and the miniature camera are used for positioning road conditions and monitoring road condition information, the miniature camera can acquire the color of an intersection signal lamp, a voice prompt unit carries out a series of voice prompts after the miniature camera acquires the color of a signal lamp, and when the lifting function of the lifting column is controlled to be started, the ZigBee chip and a ZigBee protocol of the lifting column are used for carrying out association control on the lifting of the lifting column. The central processing unit processes and synthesizes information, the voice prompt unit carries out voice prompt to guide the blind person on a proper road, the battery unit supplies electric quantity for normal use of the blind guiding stick, the wireless receiver is used for receiving electric energy to carry out wireless charging, and the situation that the blind guiding stick stops working due to no electricity and cannot continue guiding the blind person is avoided.
ZigBee network nodes are arranged in the range of the radius of 5m around the intelligent lifting column to establish a ZigBee network for interacting with the blind guiding stick, an object with a Zigbee chip is positioned according to Zigbee interaction information to transmit and analyze data and is transmitted to a data processing device, the data processing device transmits signals to an automatic lifting device, and the automatic lifting device realizes automatic lifting of the intelligent lifting column. And the wireless communication module arranged in the lifting column transmits signals with the intersection signal lamp Jining to realize the reading of signal lamp timing and the residual time length of the intersection.
The following requirements are met when the ZigBee network is interconnected with the blind guiding stick: first case: when the blind person arrives at the crosswalk, the color of the signal lamp at the intersection is red light, the miniature camera captures the red light information of the signal lamp, the GPS positioning module in the blind person is positioned in the area where the blind person is located, the blind person waits for a green light in the safety area through the voice prompt unit, after hearing the voice prompt waiting for the green light, the blind person presses the fingerprint sensing device by using the fingerprint which is input into the fingerprint system and uses the pressure which is larger than the limiting minimum pressure, the Zigbee chip arranged in the blind person guiding stick is activated, the blind person is immediately connected with the Zigbee network in the intelligent lifting column through the secret key, the ZigBee network in the automatic lifting column is connected to confirm the information of the blind person arranged in the blind person, the signal processing device is used for transmitting a signal command to the automatic lifting device to prepare to control the lifting of the lifting column, meanwhile, the Zigbee chip in the blind person guiding stick is connected to the ZigBee network to read the color and the countdown time duration of the signal lamp associated with the intelligent lifting column, when the red light is converted into the green light, the signal which can pass through the central processing unit is transmitted to the voice prompt unit, and the blind person can lift the lifting device through the automatic lifting device in the crosswalk through the voice prompt. The intelligent lifting column is used for positioning the position of the blind guiding stick by the ZigBee network in the lifting process, and the moving speed of the blind is judged according to the moving information of the blind guiding stick, so that the lifting speed of the lifting column is calculated, and the lifting column can be completely lowered to be level with the ground before the blind reaches the lifting column. After the blind person passes through the lifting column, the ZigBee network in the lifting column detects that the blind guiding stick passes through the lifting column, automatically sends a signal to the signal processing device, and the signal processing device sends a command to the automatic lifting device to finish the lifting command of the lifting column, at the moment, the blind guiding stick cannot cut off the contact with the ZigBee network immediately, the ZigBee chip embedded in the blind guiding stick is connected in the ZigBee network of the lifting column to read the residual green light time length, and the blind person is prompted whether to change speed by the voice prompt unit according to the blind person position information positioned by the GPS.
When the blind person arrives at the crosswalk and the signal lamp is just green, the miniature camera in the blind guiding stick acquires the color of the signal lamp, the voice prompt unit prompts the blind person to open a switch for controlling the lifting column to lift, the mode of opening the switch is consistent with that described above, the blind person places the finger with the input fingerprint on the fingerprint identification device and presses the finger with the strength exceeding the minimum limit, when the device is started, the ZigBee network in the lifting column is connected with the ZigBee chip in the blind guiding stick, the ZigBee chip in the blind guiding stick reads the green light residual duration of the signal lamp in the ZigBee network of the lifting column, and if the green light residual duration is less than 5s, the voice prompt unit of the blind guiding stick prompts to wait for the next green light; if the green light duration is more than 10s, the voice prompt unit in the blind guiding stick prompts the blind person to pass through the crosswalk, and when the blind person receives the green light waiting for the next time, the lifting column is still in a rising state, and the lifting function can be realized only when the ZigBee network monitors that the ZigBee chip in the blind guiding stick starts to move.
The blind guiding stick realizes a wireless charging function, wherein a wireless charging receiver in the blind guiding stick and a wireless charging device in a lifting column are in a working state in the whole process that a blind person passes through a crosswalk, when the blind person passes through the crosswalk, a ZigBee network in the lifting column can be automatically disconnected with a ZigBee chip in the blind guiding stick, a central processing unit in the blind guiding stick can automatically detect the residual electric quantity in the blind guiding stick at the moment, if the electric quantity is less than 20%, a prompting unit prompts that the residual electric quantity of a blind person battery is low, and a GPS chip is matched with the central processing unit to find a safe waiting place to perform infinite charging for the blind person, and when the electric quantity reaches 50%, the voice prompting unit prompts the electric quantity, and the blind person can automatically determine whether to continue charging.
Example 3
The embodiment discloses a wide tolerance type crosswalk safety island intelligent lifting column for blind people, which comprises a ZigBee network, a wireless communication module, a signal processing device, an automatic lifting device, a wireless charging module, a solar photovoltaic panel, a vibration energy induction conversion device, an electric storage device, an anti-stepping material, an anti-skid material, an anti-abrasion material and an anti-collision material.
The Zigbee network uses specific secret keys to interact with Zigbee chips in the blind guide poles for information transmission. The wireless communication module is used for being connected with the intersection signal lamp and synchronizing the color change and the duration of the signal lamp. The signal processing device is used for converting Zigbee signals and controlling the automatic lifting device. The automatic lifting device can realize the automatic lifting of the intelligent lifting column. The wireless charging module can realize the wireless charging function of the blind guiding stick.
The solar photovoltaic panel is used for absorbing solar energy and converting the solar energy into electric energy; the vibration energy induction conversion device is used for absorbing the vibration energy generated when pedestrians walk on the roadbed surface and converting the vibration energy into electric energy. The power storage device is used for supplying electric power required by the operation of the automatic lifting column and storing solar energy and electric energy converted by vibration energy. The anti-stepping material, the anti-skid material, the anti-wear material and the anti-collision material are used for protecting the safety of the intelligent lifting column and prolonging the service life.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. The utility model provides a steerable crosswalk safety island lift post guide cane, includes guide cane, its characterized in that: the system comprises a central processing system, a data acquisition part, a wireless transmission part and a positioning part; the central processing system is used for receiving positioning information sent by the positioning part at the same time, analyzing and processing the data, and then utilizing the wireless transmission part to realize interaction with the intelligent lifting column to control the lifting of the lifting column;
the central processing system integrates a storage unit, a central processing unit, a voice prompt unit, a battery unit, an accident automatic alarm unit and a wireless charging module and is used for data processing analysis and control signal transmission;
the data acquisition part comprises a voice recognition unit, a miniature camera, a fingerprint recognition module and a pressure sensing device, and is used for acquiring live-action data, voice data, fingerprint data and pressure data;
the wireless transmission part integrates a ZigBee chip, a SIM card reading module and a network signal access unit and is used for interacting with the intelligent lifting column;
the positioning part is a GPS positioning module and is used for updating the position information of the blind guiding stick user in real time;
the fingerprint identification module and the pressure sensing device are used for controlling the start of the Zigbee chip, and when the fingerprint identification is successful and reaches a preset pressure value, the central processing system controls the Zigbee chip to start to interact with the intelligent lifting column;
the ZigBee chip integrates a sensor module, a processor module, a wireless communication module and an energy supply module;
the sensor module monitors the collection of relevant equipment data in the area and performs A/D conversion on the collected data;
the processor module controls the action of the whole sensor node, and stores and processes the collected data and the received data;
the wireless communication module receives and transmits related data and exchanges control information with other nodes, so that wireless communication of other sensor nodes in the same network is realized.
2. The blind guiding stick capable of controlling a lifting column of a crosswalk safety island according to claim 1, wherein the SIM card reading module and the network access unit are used for reading a SIM card installed in the blind guiding stick and for accessing an operator network to realize interaction with a mobile terminal.
3. The blind guiding stick capable of controlling the lifting column of the crosswalk safety island according to claim 1, wherein the storage unit stores temporary files and identity information of the blind person, and the voice recognition unit is used for recognizing voice instructions for guiding the blind person; the voice prompt unit is used for guiding the blind person to the road, and the accident automatic alarm unit automatically alarms to the traffic police department and transmits on-site information when the blind person is detected to be damaged.
4. The blind guiding stick capable of controlling the lifting column of the crosswalk safety island according to claim 1, wherein the voice recognition unit receives the analog signal input of the voice, converts the analog signal input of the voice into a digital signal, starts to acquire a voice characteristic value based on a voice-on method, forms a voice mode to be matched, matches the voice digital signal to be matched with a trained voice template in the system, and feeds back the closest matching result to the central processing unit after the matching is finished.
5. The blind guiding stick capable of controlling the lifting column of the crosswalk safety island according to claim 1, wherein the fingerprint identification module reads a fingerprint image of a human body through fingerprint reading equipment, performs original image input, preprocessing, fingerprint feature extraction and fingerprint identification, and finally outputs an identification result.
6. The blind guiding stick for controlling the lifting column of the crosswalk safety island according to claim 5, wherein the fingerprint identification process comprises initial matching of matching by constructing local feature vectors of feature points, coordinate calibration of feature point sets based on the initial matching result, secondary matching of the calibrated point sets and final three-time matching of judging the matching result.
7. The blind guiding stick capable of controlling the lifting column of the crosswalk safety island according to claim 1, wherein the miniature camera comprises a camera, a main control MCU chip, a storage module, a stepping motor, a color filter and a communication module; when the identification is needed, the MCU sends out a signal, an optical filter is selected and photographed, after photographing, the main control MCU chip performs identification, the identified reading is sent to the central processing system through the communication module, the color optical filter is covered on an LED of the camera, light emitted by the LED irradiates a metering display area through the optical filter, the color is changed due to the effect of the optical filter, and the color is stored in the storage module as identified comparison data.
CN201910848588.9A 2019-09-09 2019-09-09 Blind guiding stick capable of controlling lifting column of crosswalk safety island Active CN110448437B (en)

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CN112120899A (en) * 2020-09-22 2020-12-25 江苏安全技术职业学院 Intelligent walking stick for blind based on computer vision
CN112641609A (en) * 2021-01-14 2021-04-13 新疆大学 Intelligent travel auxiliary system and method for blind in social space

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