CN212590740U

CN212590740U - Intelligent walking stick based on raspberry group

Info

Publication number: CN212590740U
Application number: CN202021008376.4U
Authority: CN
Inventors: 余荣川; 郭晓琳; 李峥滢; 周赵康; 张慧敏; 赵心如
Original assignee: Guangxi Science and Technology Normal University
Current assignee: Guangxi Science and Technology Normal University
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-02-26
Anticipated expiration: 2030-06-03

Abstract

The utility model relates to an intelligence walking stick equipment technical field. An intelligent crutch based on a raspberry group comprises a crutch body, and further comprises a raspberry group controller, an ultrasonic ranging module, a power module, a voice module, a GPS (global positioning system) positioning module, a GSM (global system for mobile communications) communication module, a display module and a wireless communication module, wherein the raspberry group controller, the ultrasonic ranging module, the power module, the voice module, the GPS positioning module, the GSM communication module, the display module and the wireless communication module are; the ultrasonic ranging module comprises an ultrasonic transmitting circuit and an ultrasonic receiving circuit; the power supply module is connected with the input end of the raspberry group controller; the voice module, the GPS positioning module, the GSM communication module and the display module are all connected with the output end of the raspberry group controller; the GPS positioning module and the GSM communication module are connected with the wireless communication module, and the wireless communication module is connected with the mobile terminal. The utility model discloses can improve the intelligent degree of walking stick, improve the detection precision of walking stick, promote user experience and feel.

Description

Intelligent walking stick based on raspberry group

Technical Field

The utility model relates to an intelligence walking stick equipment technical field, in particular to intelligence walking stick based on raspberry group.

Background

Along with the improvement of modern living materials and medical conditions, the society aging is more and more serious, the old people group is stronger, the walking safety of the old people is also emphasized, the walking stick is a common safety tool for the old people to go out, meanwhile, due to the improvement of electronic technology and intelligent technology, the walking stick with more functions is needed, and the walking stick can have higher safety and is intelligent and convenient for users.

Although various intelligent walking sticks exist in the market at present, most of the intelligent walking sticks are low in compatibility and running efficiency, and lack of anti-interference characteristics in circuits, so that the intelligent degree is low, the user experience is reduced, the system stability of the walking sticks is poor, and the precision of the walking sticks is reduced when the walking sticks are subjected to obstacle detection; the raspberry pi is a microcomputer mainboard based on an ARM, so that the operating program efficiency is high, the compatibility is high, and the raspberry pi becomes a mainstream controller at present.

SUMMERY OF THE UTILITY MODEL

In view of above, the utility model aims at providing an intelligence walking stick based on raspberry group to solve the compatible lower and the low technical problem of operating efficiency of traditional intelligence walking stick, combine to use raspberry group controller and a plurality of peripheral hardware, and then realize the intelligent degree of intelligence walking stick, improve the detection precision of walking stick, promote user experience and feel.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

an intelligent crutch based on a raspberry group comprises a crutch body, and further comprises a raspberry group controller, an ultrasonic ranging module, a power module, a voice module, a GPS (global positioning system) positioning module, a GSM (global system for mobile communications) communication module, a display module and a wireless communication module, wherein the raspberry group controller, the ultrasonic ranging module, the power module, the voice module, the GPS positioning module, the GSM communication module, the display module and the wireless communication module are; the ultrasonic ranging module comprises an ultrasonic transmitting circuit and an ultrasonic receiving circuit, the ultrasonic transmitting circuit is connected with the output end of the raspberry pi controller, and the input end of the ultrasonic receiving module is connected with the input end of the raspberry pi controller; the power supply module is connected with the input end of the raspberry group controller; the voice module, the GPS positioning module, the GSM communication module and the display module are all connected with the output end of the raspberry group controller; the GPS positioning module and the GSM communication module are connected with the wireless communication module, and the wireless communication module is connected with the mobile terminal.

Further, the ultrasonic transmitting circuit comprises a resistor R1, a resistor R2, a resistor R3, a triode Q1, a triode Q2, a CMOS tube Q3, a capacitor C1, a transformer T and an ultrasonic transducer X; one end of the resistor R1 is respectively connected with the base electrode of the triode Q1 and the base electrode of the triode Q2, the collector electrode of the triode Q1 is connected with a power supply, and the emitter electrode of the triode Q2 is grounded; an emitting electrode of the triode Q1 is connected with a collector electrode of the triode Q2 and then connected with one end of a CMOS tube Q3, and the other end of the CMOS tube Q3 is connected with a transformer; one end of the resistor R2 is connected with a power supply, and the other end of the resistor R2 is grounded through a capacitor C1; the resistor R3 is connected in parallel across the ultrasonic transducer X.

Further, the ultrasonic receiving circuit comprises an ultrasonic sensor TC1, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5 and a chip CX 20106A; the IN pin of the chip CX20106A is connected with the input end of the ultrasonic sensor TC1, and the output end of the ultrasonic sensor TC1 is grounded; the C1 pin of the chip CX20106A is connected with one end of a resistor R4, the other end of the resistor R4 is connected with one end of a capacitor C2, the other end of a capacitor C2 is grounded, the C2 pin of the chip CX20106A is connected with one end of a capacitor C3, the other end of a capacitor C3 is grounded, the GND pin of the chip CX20106A is grounded, the P0 pin of the chip CX20106A is connected with one end of a resistor R5, the other end of the resistor R5 and the VCC pin of the chip CX20106A are connected with a VCC voltage end together, the C3 pin of the chip CX 201A is connected with one end of a capacitor C4, and the other end of the capacitor; the OUT pin of the chip CX20106A is connected with one end of a resistor R6, the other end of the resistor R6 is connected with one end of a capacitor C5, the other end of the capacitor C5 is grounded, the VCC pin of the chip CX20106A is connected with one end of a resistor R7, and the other end of the resistor R7 is connected with the output end of the OUT pin of the chip CX 20106A.

Further, the voice module adopts a SYN6288 Chinese voice chip.

Further, the display module adopts an LCD1602 liquid crystal display.

Further, the mobile terminal is any one of a smart phone and a smart tablet.

Further, the wireless communication module performs communication connection in any one of a bluetooth mode, a WiFi mode and a Zigbee mode.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. the utility model discloses combine together the data exchange of raspberry group with ultrasonic ranging technique, sensing technique and realize the control to the walking stick, effectively utilize the characteristics that the raspberry group has powerful operational performance, open source hardware ease for use, small and low price. The distance detection is carried out on the obstacles on the road in front of the old man by utilizing the ultrasonic ranging principle, the detection echo is processed by the raspberry dispatching controller, if the obstacle exists, the voice module is used for broadcasting and prompting, the old man can avoid the obstacle according to the voice prompt, the life of the old man is greatly facilitated, and the potential safety hazard caused by the inconvenience in walking of the old man is effectively reduced; the utility model has the GPS positioning function by arranging the GPS positioning module, can perform positioning tracking through the mobile terminal, and improves the safety; the position information of the crutch is conveniently sent to the mobile phone of the guardian by arranging the GSM communication module; the display module is used for finishing the display output of the positioning information. The utility model provides a pair of intelligence walking stick based on raspberry group is applicable to the old man, can not look after the people that own health is defective etc. and the application is more extensive.

2. The utility model discloses an ultrasonic ranging module utilizes the ultrasonic wave to survey the barrier, ultrasonic wave transmitting circuit can improve ultrasonic transmitting strength, ultrasonic receiving circuit has higher sensitivity and stronger interference killing feature, and this ultrasonic receiving circuit is based on chip CX20106A, and this chip is ultrasonic wave receiving processing chip, uses this chip not only to simplify the circuit, and the function is comprehensive moreover, has used more filter capacitance to make anti-interference ability stronger in the walking stick system environment for the system is more stable, and the obstacle detection is more accurate.

Drawings

Fig. 1 is a circuit block diagram of the utility model discloses an intelligent crutch based on raspberry group.

Fig. 2 is a schematic circuit diagram of the ultrasonic transmitting circuit of the present invention.

Fig. 3 is a schematic circuit diagram of the ultrasonic receiving circuit of the present invention.

Fig. 4 is a schematic structural view of the crutch body.

Wherein, labeled in the figures: 1-a crutch body; 2-a raspberry pi controller; 3-an ultrasonic ranging module; 4-a power supply module; 5-a voice module; 6-GPS positioning module; 7-GSM communication module; 8-a display module; 9-a wireless communication module; 10-a mobile terminal; 11-piezoelectric ultrasonic sensor.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, an intelligent crutch based on a raspberry group comprises a crutch body 1, and further comprises a raspberry group controller 2, an ultrasonic ranging module 3, a power module 4, a voice module 5, a GPS positioning module 6, a GSM communication module 7, a display module 8 and a wireless communication module 9, which are arranged on the crutch body 1; the output end of the ultrasonic ranging module 3 is connected with the input end of the raspberry pi controller 2; the power supply module 4 is connected with the input end of the raspberry pi controller 2; the voice module 5, the GPS positioning module 6, the GSM communication module 7 and the display module 8 are all connected with the output end of the raspberry pi controller 2; the GPS positioning module 6 and the GSM communication module 7 are connected with the wireless communication module 9, and the wireless communication module 9 is connected with the mobile terminal 10. The mobile terminal 10 is any one of a smart phone and a smart tablet. The wireless communication module 9 performs communication connection in any one of bluetooth, WiFi and Zigbee.

The utility model discloses combine together data exchange and ultrasonic ranging technique, the sensing technology of raspberry group and realize the control to the walking stick, utilize the ultrasonic ranging principle to carry out distance detection to the barrier on the road in old man's place ahead, survey the echo and handle through raspberry group controller 2, if there is the barrier, then broadcast the suggestion through voice module 5, the old man can dodge the barrier according to voice prompt, very big has made things convenient for old man's life, has effectively alleviateed the inconvenient potential safety hazard that brings of old man's walking; the utility model has the GPS positioning function by arranging the GPS positioning module 6, and can perform positioning tracking through the mobile terminal 10, thereby improving the safety; the position information of the crutch is conveniently sent to the mobile phone of the guardian by arranging the GSM communication module 7; the display module 8 is used for finishing the display output of the positioning information.

The ultrasonic transmitting circuit is used for generating an ultrasonic signal, and as shown in fig. 2, the ultrasonic transmitting circuit comprises a resistor R1, a resistor R2, a resistor R3, a triode Q1, a triode Q2, a CMOS transistor Q3, a capacitor C1, a transformer T, and an ultrasonic transducer X; one end of the resistor R1 is respectively connected with the base electrode of the triode Q1 and the base electrode of the triode Q2, the collector electrode of the triode Q1 is connected with the power supply, and the emitter electrode of the triode Q2 is grounded; an emitting electrode of the triode Q1 is connected with a collector electrode of the triode Q2 and then connected with one end of a CMOS tube Q3, and the other end of the CMOS tube Q3 is connected with the transformer; one end of the resistor R2 is connected with a power supply, and the other end is grounded through a capacitor C1; the resistor R3 is connected in parallel across the ultrasonic transducer X. The ultrasonic transmitting circuit sends the received square wave pulse signal to a class B push-pull amplifying circuit, the output signal of the class B push-pull amplifying circuit drives a CMOS tube Q3, then the pulse signal is added to a high-frequency pulse transformer T for power amplification, the amplitude is increased, and finally the amplified pulse square wave signal is added to an ultrasonic transducer X to drive a resonance piece to vibrate, so that ultrasonic waves are generated and transmitted.

As shown in fig. 3, the ultrasonic receiving circuit includes an ultrasonic sensor TC1, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, and a chip CX 20106A; the IN pin of the chip CX20106A is connected with the input end of the ultrasonic sensor TC1, and the output end of the ultrasonic sensor TC1 is grounded; the C1 pin of the chip CX20106A is connected with one end of a resistor R4, the other end of the resistor R4 is connected with one end of a capacitor C2, the other end of a capacitor C2 is grounded, the C2 pin of the chip CX20106A is connected with one end of a capacitor C3, the other end of a capacitor C3 is grounded, the GND pin of the chip CX20106A is grounded, the P0 pin of the chip CX20106A is connected with one end of a resistor R5, the other end of the resistor R5 and the VCC pin of the chip CX20106A are connected with a VCC voltage end together, the C3 pin of the chip CX 201A is connected with one end of a capacitor C4, and the other end of the capacitor; the OUT pin of the chip CX20106A is connected with one end of a resistor R6, the other end of the resistor R6 is connected with one end of a capacitor C5, the other end of the capacitor C5 is grounded, the VCC pin of the chip CX20106A is connected with one end of a resistor R7, and the other end of the resistor R7 is connected with the output end of the OUT pin of the chip CX 20106A. The single-row 8-pin direct-insertion type solar water heater is small in package and powered by +5V, is convenient to use and has strong functions. The center frequency of the chip is about 38kHZ, the resistance value of the adjusting resistor R5 can change the size of the center frequency, the larger the resistance value is, the smaller the center frequency is, the ultrasonic ranging module of the utility model utilizes ultrasonic waves to detect obstacles, the ultrasonic sensor adopts the piezoelectric ultrasonic sensor 11 which is arranged on the crutch body 1, and the installation quantity can be set to one or more according to the actual requirement; ultrasonic wave transmitting circuit can improve ultrasonic transmitting intensity, sends the GPIO interface of controller 2 through the raspberry, produces a stable pulse waveform to through amplifier circuit drive piezoelectric wafer resonance, drive the vibration of resonance piece, thereby produce the ultrasonic wave. After the crutch switch is turned on, the circuit continuously sends ultrasonic waves through the probe.

The ultrasonic receiving circuit has higher sensitivity and stronger anti-jamming capability, is based on a chip CX20106A, is an ultrasonic receiving processing chip, simplifies the circuit by using the chip, has comprehensive functions, and uses more filter capacitors to ensure that the anti-jamming performance in the crutch system environment is stronger, so that the system is more stable and the obstacle detection is more accurate.

The type of the raspberry pi controller 2 is raspberry pi 3 generation B +, and the raspberry pi 3 generation B + is small in size, easy to carry, capable of supporting SD card expansion and high in hearing aid tone quality. In this embodiment, the microprocessor in the raspberry pi 3 generation B + is BCM2837B0, which has better data processing capability, and in use, avoids the loss of voice data, and can work normally under the condition of strong electromagnetic interference (up to 6000 gauss). The voice module 5 adopts a SYN6288 Chinese voice chip. The display module 8 employs an LCD1602 liquid crystal display. The crutch body 1 is embedded with a power module 4, and the power supply voltage is 5V.

In the user walking in-process, can use ultrasonic ranging module 3 in the intelligent walking stick to survey the barrier in user the place ahead and feed back raspberry group controller 2, when the user is close to the barrier soon, then report the suggestion through voice module 5, the user can dodge the barrier according to voice prompt. The GPS positioning module 6 on the crutch of the old man is turned on to position the old man in real time, so that a guardian can position and track the old man through the mobile terminal 10, and the safety is improved; the position information of the crutch is conveniently sent to the mobile phone of the guardian by arranging the GSM communication module 7; the display module 8 is used for finishing the display output of the positioning information.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. The utility model provides an intelligence walking stick based on raspberry group, includes the walking stick body, its characterized in that: the intelligent walking stick is characterized by also comprising a raspberry group controller, an ultrasonic ranging module, a power module, a voice module, a GPS (global positioning system) positioning module, a GSM (global system for mobile communications) communication module, a display module and a wireless communication module, wherein the raspberry group controller, the ultrasonic ranging module, the power module, the voice module, the GPS positioning module, the GSM communication module, the display; the ultrasonic ranging module comprises an ultrasonic transmitting circuit and an ultrasonic receiving circuit, the ultrasonic transmitting circuit is connected with the output end of the raspberry pi controller, and the input end of the ultrasonic receiving module is connected with the input end of the raspberry pi controller; the power supply module is connected with the input end of the raspberry group controller; the voice module, the GPS positioning module, the GSM communication module and the display module are all connected with the output end of the raspberry group controller; the GPS positioning module and the GSM communication module are connected with the wireless communication module, and the wireless communication module is connected with the mobile terminal.

2. The intelligent crutch based on the raspberry pi as recited in claim 1, further comprising: the ultrasonic transmitting circuit comprises a resistor R1, a resistor R2, a resistor R3, a triode Q1, a triode Q2, a CMOS tube Q3, a capacitor C1, a transformer T and an ultrasonic transducer X; one end of the resistor R1 is respectively connected with the base electrode of the triode Q1 and the base electrode of the triode Q2, the collector electrode of the triode Q1 is connected with a power supply, and the emitter electrode of the triode Q2 is grounded; an emitting electrode of the triode Q1 is connected with a collector electrode of the triode Q2 and then connected with one end of a CMOS tube Q3, and the other end of the CMOS tube Q3 is connected with a transformer; one end of the resistor R2 is connected with a power supply, and the other end of the resistor R2 is grounded through a capacitor C1; the resistor R3 is connected in parallel across the ultrasonic transducer X.

3. The intelligent crutch based on the raspberry pi as recited in claim 1, further comprising: the ultrasonic receiving circuit comprises an ultrasonic sensor TC1, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5 and a chip CX 20106A; the IN pin of the chip CX20106A is connected with the input end of the ultrasonic sensor TC1, and the output end of the ultrasonic sensor TC1 is grounded; the C1 pin of the chip CX20106A is connected with one end of a resistor R4, the other end of the resistor R4 is connected with one end of a capacitor C2, the other end of a capacitor C2 is grounded, the C2 pin of the chip CX20106A is connected with one end of a capacitor C3, the other end of a capacitor C3 is grounded, the GND pin of the chip CX20106A is grounded, the P0 pin of the chip CX20106A is connected with one end of a resistor R5, the other end of the resistor R5 and the VCC pin of the chip CX20106A are connected with a VCC voltage end together, the C3 pin of the chip CX 201A is connected with one end of a capacitor C4, and the other end of the capacitor; the OUT pin of the chip CX20106A is connected with one end of a resistor R6, the other end of the resistor R6 is connected with one end of a capacitor C5, the other end of the capacitor C5 is grounded, the VCC pin of the chip CX20106A is connected with one end of a resistor R7, and the other end of the resistor R7 is connected with the output end of the OUT pin of the chip CX 20106A.

4. The intelligent crutch based on the raspberry pi as recited in claim 1, further comprising: the voice module adopts a SYN6288 Chinese voice chip.

5. The intelligent crutch based on the raspberry pi as recited in claim 1, further comprising: the display module adopts an LCD1602 liquid crystal display.

6. The intelligent crutch based on the raspberry pi as recited in claim 1, further comprising: the mobile terminal is any one of a smart phone and a smart tablet.

7. The intelligent crutch based on the raspberry pi as recited in claim 1, further comprising: the wireless communication module is in communication connection in any one mode of Bluetooth, WiFi and Zigbee.