CN203576859U

CN203576859U - Intelligent blind guider

Info

Publication number: CN203576859U
Application number: CN201320665053.6U
Authority: CN
Inventors: 陈庆玲; 张俊武
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2013-10-28
Filing date: 2013-10-28
Publication date: 2014-05-07
Anticipated expiration: 2023-10-28

Abstract

The utility model discloses an intelligent blind guider which comprises an ABS (acrylonitrile butadiene styrene) housing, wherein rope hanging holes are formed in two sides of the housing; a battery box, a micro Arduino control board, an ultrasonic sensor and a vibration motor are mounted in the housing; a plurality of general batteries are mounted in the battery box to form an external direct-current power supply; a power supply lead-out wire of the battery box is connected with a VIN pin of the micro Arduino control board; a D5 pin of the micro Arduino control board is connected with the vibration motor; a D2 pin of the micro Arduino control board is connected with an SIG-marked pin of the ultrasonic sensor; a 5 V pin of the micro Arduino control board is connected with a power supply pin of the ultrasonic sensor; the grounding pins of the micro Arduino control board and the ultrasonic sensor and a ground wire of the vibration motor are all grounded. The intelligent blind guider is simple in structure and small in volume, can be independently powered, can be tied on a general blind guide stick or the wrist of a blind person, or even put into a coat pocket by enabling an elastic rope to penetrate through the rope hanging holes, and is convenient and flexible to use.

Description

A kind of intelligent blind-guiding device

Technical field

This utility model relates to blind person's aid of walking, the intelligent blind-guiding device that especially relates to a kind of detectable trade barrier and give a warning.

Background technology

Blind person need to rely on blind-guide device guided path and detecting obstacles thing when walking alone.The most conventional blind-guide device is walking stick, knock ground with walking stick, can help blind person to find that 0.5 meter with interior barrier, cheap relying of blind guiding stick, is used, easy to use, thereby be most widely used, but its defect is also very obvious, its major defect is initiatively to find distant barrier and aerial outstanding barrier.For example, head, chest level position hang or outstanding object just can not be detected by blind guiding stick being equivalent to.In addition, blind person can also utilize seeing-eye dog to lead the way, but seeing-eye dog is difficult for training and cost is higher; On market, also there are various electronics blind-guide devices, but mostly expensive.In reality, a lot of sidewalk for visually impaired people situation is around not good, often can see and have that car is parked on sidewalk for visually impaired people, branch hangs in overhead, sidewalk for visually impaired people etc., at this moment the result of use of blind guiding stick is just quite limited, and common blind person family is difficult to bear the high seeing-eye dog of price, electronics blind-guide device, therefore it is very necessary, developing a kind of blind-guide device with low cost and that guide effect is good.

Summary of the invention

Technical problem to be solved in the utility model is to provide that a kind of volume is little, cost is low, and the intelligent blind-guiding device of accurate detection barrier.

This utility model adopts following technical scheme: comprise ABS shell, it is characterized in that: shell both sides arrange lanyard hole, and battery case, miniature Arduino panel, ultrasonic sensor, vibration motor are housed in shell; Some joint common batteries are housed in battery case and form external direct current power supply, battery case power supply is derived line and is connected with the VIN pin of miniature Arduino panel, and the D5 pin of miniature Arduino panel is connected with vibration motor; The D2 pin of miniature Arduino panel is connected with the pin of the SIG labelling of ultrasonic sensor; The 5V pin of miniature Arduino panel is connected with the power pins of ultrasonic sensor, miniature Arduino panel, the grounding pin of ultrasonic sensor and the equal ground connection of the ground wire of vibration motor.

Good effect of the present utility model is as follows:

The miniature Arduino panel that this utility model adopts is base and the extra small Simple i/o platform of opening source code, highly integrated, can directly utilize miniature Arduino panel USB interface to be connected communication with PC computer, and debugging maintenance is simple.This utility model circuit structure is simplified, volume is little and have independently-powered, by lanyard hole cross-under one stretch cord, can tie up on common blind-guiding stick, or tie up in blind person's wrist, even be placed in coat pocket, easy to use and flexible, when ultrasonic sensor detects barrier and is less than the safe distance setting in advance, vibration motor starts vibrations, plays prompting warning function, and ultrasonic sensor is not affected by light, applicable equally during detecting obstacles thing in the dark.

Accompanying drawing explanation

Accompanying drawing 1 is structural representation of the present utility model.

Accompanying drawing 2 is circuit connection diagram of the present utility model.

the specific embodiment

As shown in accompanying drawing 1 and Fig. 2, this utility model comprises ABS shell 1, and shell 1 both sides arrange lanyard hole 2, and battery case, miniature Arduino panel 3, ultrasonic sensor 4, vibration motor 5 are housed in shell; Some joint common batteries are housed in battery case and form external direct current power supply 6, battery case power supply is derived line and is connected with the VIN pin of miniature Arduino panel 3, and the D5 pin of miniature Arduino panel 3 is connected with vibration motor 5; The D2 pin of miniature Arduino panel 3 is connected with the pin of the SIG labelling of ultrasonic sensor 4; The 5V pin of miniature Arduino panel 3 is connected with the power pins of ultrasonic sensor 4, the equal ground connection of ground wire of the grounding pin of miniature Arduino panel 3, ultrasonic sensor 4 and vibration motor 5.

Preferably, miniature Arduino panel 3 adopts Arduino Nano 3.0 ATmega328 development boards, in battery case, can fill No. 7 common batteries of 6 joint, form 9V external direct current power supply 6, ultrasonic sensor 4 can adopt HY-SRF06 ultrasonic sensor, detection range: 2cm-450cm, precision can reach 1mm.Arduino Nano 3.0 ATmega328 development boards adopt Atmel Atmega328P-AU single-chip microcomputer, base and the extra small Simple i/o platform of opening source code, highly integrated, be beneficial to and dwindle machine volume, USB interface by miniature Arduino panel 3 is connected communication with PC computer, can on PC computer, adjust the interior default critical distance value of miniature Arduino panel 3.

The D2 pin of miniature Arduino panel 3 is connected with the pin of the SIG labelling of ultrasonic sensor 4, the 5V pin of miniature Arduino panel 3 is connected with the power pins of ultrasonic sensor 4, make miniature Arduino panel 3 can receive the signal that ultrasonic sensor 4 transmits, and realize and control ultrasonic sensor 4.Miniature Arduino panel 3 is controlled ultrasonic sensor 4 and is sent a pulse signal, and receive the pulse signal that returns, utilize the principle that the signal backspace time is directly proportional to the distance of ultrasonic sensor 4 to object, miniature Arduino panel 3 calculate ultrasonic sensor 4 in its measuring range hithermost object apart from the distance of sensor.When the distance of the barrier detecting and ultrasonic sensor 4 is less than the predefined critical distance of miniature Arduino panel 3 control sequence, the D5 pin output high level of miniature Arduino panel 3, drive the vibration motor 5 being connected with the D5 pin of miniature Arduino panel 3, make it continue to rotate, play prompting warning function.

This utility model circuit structure is simplified, and volume is little and have independently-poweredly, can tie up on common blind-guiding stick, or tie up in blind person's wrist by lanyard hole 2 cross-under one stretch cords, is even placed in coat pocket, and easy to use and flexible, is easy to apply.

Claims

1. an intelligent blind-guiding device, comprises ABS shell, it is characterized in that: shell both sides arrange lanyard hole, and battery case, miniature Arduino panel, ultrasonic sensor, vibration motor are housed in shell; Some joint common batteries are housed in battery case and form external direct current power supply, battery case power supply is derived line and is connected with the VIN pin of miniature Arduino panel, and the D5 pin of miniature Arduino panel is connected with vibration motor; The D2 pin of miniature Arduino panel is connected with the pin of the SIG labelling of ultrasonic sensor; The 5V pin of miniature Arduino panel is connected with the power pins of ultrasonic sensor, miniature Arduino panel, the grounding pin of ultrasonic sensor and the equal ground connection of the ground wire of vibration motor.

2. a kind of intelligent blind-guiding device according to claim 1, is characterized in that described miniature Arduino panel adopts Arduino Nano 3.0 ATmega328 development boards.

3. a kind of intelligent blind-guiding device according to claim 1, is characterized in that can filling No. 7 common batteries of 6 joint in battery case, forms 9V external direct current power supply.