Smart phone voice blind person obstacle avoidance system

Abstract

A smart phone voice blind person obstacle avoidance system is a system which installs distance measuring equipment on a toe cap and uses a smart phone to provide obstacle avoidance service for a blind person, comprises a distance measuring terminal module and a main control module, and is characterized in that the main control module refers to the smart phone; comprising a Bluetooth chip 1 sub-module, an obstacle detection sub-module, a voice synthesis sub-module and a voice prompt custom sub-module. The distance measuring terminal module comprises a shoe adhesive tape, a box, a battery sub-module, a Bluetooth chip 2 sub-module and an ultrasonic sensor sub-module; the shoe adhesive tape is adhered to the outer side surface of the box, and the shoe adhesive tape is adhered to the upper surface of a toe cap; the battery sub-module and the Bluetooth chip 2 sub-module are packaged in the box, and the ultrasonic sensor sub-module is installed on the outer side face of the box. The master control module and the distance measuring terminal module are communicated through Bluetooth. The system has the advantages of simple installation and good user experience.

Description

Technical Field

[0001] The utility model relates to the technical field of information processing, in particular to a smart phone voice blind obstacle avoidance system. Background Art

[0002] Although traditional ultrasonic obstacle avoidance equipment can provide obstacle avoidance services for the blind by installing it on the arms, waist, glasses frames and other human positions, it has the disadvantages of difficult installation and poor user experience due to its large size and weight. The ultrasonic sensor is installed on the toe of the shoe, and the smartphone obtains the ultrasonic sensor data through Bluetooth, detects obstacles by detecting the ultrasonic sensor data, and gives the blind voice prompts to avoid obstacles. This can not only provide high-quality obstacle avoidance services for the blind, but also reduce the size and weight of the equipment, and has the advantages of simple installation and good user experience. Summary of the invention

[0003] In view of the problems of difficult installation and poor user experience of traditional ultrasonic obstacle avoidance equipment, the utility model proposes a smart phone voice obstacle avoidance system for the blind. The utility model installs a ranging module on the toe of the shoe, and the ranging module sends the ranging value to the smart phone via Bluetooth. The smart phone plays a customized voice according to the ranging value to provide obstacle avoidance service for the blind. The utility model has the advantages of simple installation and good user experience.

[0004] To achieve the above purpose, the utility model adopts the following scheme.

[0005] A smart phone voice obstacle avoidance system for the blind comprises a ranging terminal module and a main control module, wherein the main control module refers to a smart phone, and comprises a Bluetooth chip 1 submodule, an obstacle detection submodule, a speech synthesis submodule, and a voice prompt customization submodule; the ranging terminal module comprises a shoe adhesive tape, a box, a battery submodule, a Bluetooth chip 2 submodule, and an ultrasonic sensor submodule; the shoe adhesive tape is adhered to the outer side of the box, and the shoe adhesive tape is adhered to the toe of the shoe; the battery submodule and the Bluetooth chip 2 submodule are encapsulated in the box, and the ultrasonic sensor submodule is installed on the outer side of the box; the main control module and the ranging terminal module communicate via Bluetooth.

[0006] The smart phone voice blind obstacle avoidance system is characterized in that the ultrasonic sensor submodule and the Bluetooth chip 2 submodule both support UART communication, the two are connected using UART, and the ultrasonic sensor submodule returns the ranging value to the main control module through the Bluetooth chip 2 submodule.

[0007] The smart phone voice obstacle avoidance system for the blind is characterized in that the battery submodule, the ultrasonic sensor submodule and the Bluetooth chip 2 submodule are connected in parallel, and the battery submodule provides power for the ultrasonic sensor submodule and the Bluetooth chip 2 submodule.

[0008] The smart phone voice obstacle avoidance system for the blind is characterized in that the voice synthesis submodule receives the obstacle warning prompt word transmitted by the obstacle detection submodule, and broadcasts the obstacle warning prompt word by voice.

[0009] The smart phone voice obstacle avoidance system for the blind is characterized in that the voice prompt customization submodule supports predefinition and storage of obstacle alarm prompt words.

[0010] The smart phone voice obstacle avoidance system for the blind is characterized in that the obstacle detection submodule receives the ranging value of the ultrasonic sensor submodule through the Bluetooth chip 1 submodule, and reads the obstacle alarm prompt word from the voice prompt custom submodule according to predefined rules.

[0011] The advantages of the technical solution of the utility model are as follows: the system installs the ranging module on the toe of the shoe, connects to the smart phone via Bluetooth, uses Bluetooth to transmit the ranging value in the ranging module to the smart phone for processing, and the smart phone broadcasts a custom voice according to the ranging value to remind the user to avoid obstacles; the system separates the ranging module from the main control module and replaces the embedded development board with the smart phone, which reduces the development difficulty on the one hand and reduces the volume and weight of the ranging module on the other hand, and has the advantages of simple installation, high intelligence and good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of the ranging terminal module according to an embodiment of the utility model.

[0013] Figure 2 This is a circuit diagram of a ranging terminal module according to an embodiment of the utility model.

[0014] Figure 3 This is a system structure diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0015] In the smart phone voice blind obstacle avoidance system described in this embodiment, the ultrasonic sensor submodule uses an ultrasonic sensor of model US-100, the Bluetooth chip 2 submodule uses a JDY-16 Bluetooth chip, the two are connected using UART, the Bluetooth chip 2 submodule pin 19 is connected to the ultrasonic sensor submodule Pin 2, the Bluetooth chip 2 submodule pin 20 is connected to the ultrasonic sensor submodule Pin 3, as shown in FIG. Figure 2 .

[0016] In the smart phone voice blind obstacle avoidance system described in this embodiment, Pin 1 of the ultrasonic sensor submodule, Pin 1 of the Bluetooth chip 2 submodule and the positive electrode of the battery submodule are connected in parallel, and Pin 4 of the ultrasonic sensor submodule, Pin 24 of the Bluetooth chip 2 submodule and the negative electrode of the battery submodule are connected in parallel, such as Figure 2 .

[0017] In the smart phone voice obstacle avoidance system for the blind described in this embodiment, the Bluetooth chip 2 submodule uses a JDY-16 Bluetooth chip, pin 21 is left floating, and the Bluetooth chip 2 submodule is set to a UART communication mode with a baud rate of 9600.

[0018] In the smart phone voice obstacle avoidance system for the blind described in this embodiment, the battery submodule consists of a battery slot with a power switch and one 18650 lithium battery.

[0019] The specific implementation of the present utility model is as follows.

[0020] The user first turns on the power switch of the battery submodule described in the embodiment of the utility model, and then performs Bluetooth pairing on the main control module and the ranging terminal module.

[0021] The user predefines a set of list values ​​through the voice prompt custom submodule of the main control module, wherein the set of list values ​​is composed of a plurality of list values, and a list value is composed of a minimum ranging value, a maximum ranging value and a broadcast text value.

[0022] The obstacle detection submodule of the main control module first sends a distance measurement request to the ultrasonic sensor submodule via Bluetooth and receives the distance measurement value returned by the ultrasonic sensor submodule; then, the broadcast text is obtained from the voice prompt customization submodule according to the distance measurement value and the predefined rules of the broadcast text. For example, if the distance measurement value falls between the minimum distance measurement value and the maximum distance measurement value in a certain list value, the broadcast text value of the certain list value is read out; finally, the broadcast text is handed over to the speech synthesis submodule for processing, and the speech synthesis submodule uses voice to broadcast the broadcast text. The user can bypass the obstacle to the left or right according to the voice prompt, and the user can also raise his foot to detect the height of the obstacle according to the voice prompt to decide whether to cross the obstacle.

[0023] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable developers to develop new products based on the content of the utility model. Any equivalent changes or modifications made based on the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A smart phone voice obstacle avoidance system for the blind, comprising a ranging terminal module and a main control module, characterized in that: The main control module refers to a smart phone, including a Bluetooth chip 1 submodule, an obstacle detection submodule, a speech synthesis submodule, and a voice prompt customization submodule; the ranging terminal module includes a shoe adhesive tape, a box, a battery submodule, a Bluetooth chip 2 submodule, and an ultrasonic sensor submodule; the shoe adhesive tape is adhered to the outer side of the box, and the shoe adhesive tape is adhered to the toe; the battery submodule and the Bluetooth chip 2 submodule are encapsulated in the box, and the ultrasonic sensor submodule is installed on the outer side of the box; the main control module and the ranging terminal module communicate via Bluetooth.

2. A smart phone voice obstacle avoidance system for the blind according to claim 1, characterized in that: The ultrasonic sensor submodule and the Bluetooth chip 2 submodule both support UART communication, and the two are connected using UART. The ultrasonic sensor submodule returns the distance measurement value to the main control module through the Bluetooth chip 2 submodule.

3. The smart phone voice obstacle avoidance system for the blind according to claim 1, characterized in that: The battery submodule, the ultrasonic sensor submodule and the Bluetooth chip 2 submodule are connected in parallel, and the battery submodule provides power for the ultrasonic sensor submodule and the Bluetooth chip 2 submodule.

4. The smart phone voice blind obstacle avoidance system according to claim 1, characterized in that: The speech synthesis submodule receives the obstacle warning prompt word transmitted by the obstacle detection submodule, and broadcasts the obstacle warning prompt word through speech.

5. The smart phone voice obstacle avoidance system for the blind according to claim 1, characterized in that: The voice prompt customization submodule stores predefined obstacle warning prompt words.

6. The smart phone voice obstacle avoidance system for the blind according to claim 1, characterized in that: The obstacle detection submodule receives the distance measurement value of the ultrasonic sensor submodule through the Bluetooth chip 1 submodule, and reads the obstacle alarm prompt word from the voice prompt custom submodule.

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