阅读说明：本技术 辅助盲人出行的手环避障导航系统及方法 (Bracelet obstacle avoidance navigation system and method for assisting blind person in going out ) 是由 吴远成 于 2021-08-16 设计创作，主要内容包括：本发明为辅助盲人出行的手环避障导航系统及方法,手环的表头内和手环位于表头的两侧和后方均配置有线性马达和红外传感器,表头还配置有传输模块,手环通过传输模块与移动设备建立连接,获取卫星定位信息和路线信息；根据信息实时判断用户前进方向是否处于正确的路线方向,同时红外传感器检测环境内的障碍物,当红外传感器检测到环境内存在障碍物,对应位置的线性马达以第一振动模式进行振动；通过在手环上设置多个线性马达配合导航信息,根据导航的路线信息控制对应方向的线性马达进行振动从而为盲人进行方向导航,同时设置红外传感器与线性马达进行配合,从而在导航的同时通过线性马达进行避障提示,有效的保证了盲人出行的方向准确性和安全性。(The invention relates to a bracelet obstacle avoidance navigation system and method for assisting a blind person to go out.A linear motor and an infrared sensor are respectively arranged in a watch head of a bracelet and at the two sides and the rear part of the bracelet, the watch head is also provided with a transmission module, and the bracelet is connected with mobile equipment through the transmission module to acquire satellite positioning information and route information; judging whether the advancing direction of a user is in a correct route direction in real time according to the information, simultaneously detecting an obstacle in the environment by using the infrared sensor, and vibrating the linear motor at the corresponding position in a first vibration mode when the infrared sensor detects that the obstacle exists in the environment; through set up a plurality of linear motor cooperation navigation information on the bracelet, thereby the linear motor who corresponds the direction according to the route information control of navigation vibrates for the blind person carries out the direction navigation, sets up infrared sensor and linear motor simultaneously and cooperates to keep away the barrier suggestion through linear motor when navigating, the effectual direction accuracy and the security of guaranteeing the blind person's trip.)

1. The utility model provides a supplementary blind person's trip bracelet navigation of avoiding obstacle which characterized in that, the gauge outfit of bracelet in and bracelet both sides and rear that are located the gauge outfit all dispose linear motor and infrared sensor, the gauge outfit still disposes the transmission module that is used for carrying out data transmission with mobile device, the navigation of avoiding obstacle includes:

the bracelet is connected with the mobile equipment through the transmission module to acquire satellite positioning information and route information from the mobile equipment;

judging whether the advancing direction of a user is in a correct route direction in real time according to the satellite positioning information and the route information, simultaneously, continuously working by the infrared sensor to detect an obstacle in the environment, and vibrating the linear motor at the corresponding position in a first vibration mode when the infrared sensor detects that the obstacle exists in the environment;

and when the judgment result is negative, identifying the direction of the correct route in the advancing direction, and controlling the linear motor at the corresponding direction position to vibrate in a second vibration mode by the bracelet according to the identified direction.

2. The bracelet obstacle avoidance navigation method for assisting the blind in traveling according to claim 1, wherein the vibration intensity and/or the vibration frequency of the first vibration mode is different from the vibration intensity and/or the vibration frequency of the second vibration mode.

3. The bracelet obstacle avoidance navigation method for assisting the blind in traveling according to claim 1, wherein when an infrared sensor detects that an obstacle exists in an environment, a distance from the bracelet to the obstacle is detected at the same time, and a vibration state of the first vibration mode changes according to the detected distance.

4. The bracelet obstacle avoidance navigation method for assisting the blind in traveling according to claim 3, wherein the distance between the infrared sensor and the obstacle is divided into a plurality of preset distance intervals from far to near, the first vibration mode is divided into a plurality of corresponding vibration states according to the plurality of preset distance intervals, and when the distance from the infrared sensor to the obstacle enters one of the preset distance intervals, the linear motor at the corresponding position is controlled to enter the corresponding vibration state.

5. The bracelet obstacle avoidance navigation method for assisting the blind in traveling according to claim 1, wherein when it is determined that the user's forward direction is not in the correct route direction and the infrared sensor detects the presence of an obstacle in the environment, the priority of the first vibration mode is greater than the priority of the second vibration mode.

6. A bracelet obstacle avoidance navigation system for assisting the travel of the blind is characterized in that a linear motor and an infrared sensor are arranged in a watch head of the bracelet and at the two sides and the rear part of the bracelet, the watch head is also provided with a transmission module for data transmission with mobile equipment, and the watch head also comprises a control assembly and a judgment module;

the control component of the bracelet is connected with the mobile equipment through the transmission module to acquire satellite positioning information and route information from the mobile equipment;

the judging module judges whether the advancing direction of the user is in the correct route direction in real time according to the satellite positioning information and the route information, meanwhile, the infrared sensor continuously works to detect obstacles in the environment, and when the infrared sensor detects that the obstacles exist in the environment, the control assembly controls the linear motor at the corresponding position to vibrate in a first vibration mode; when the judgment result of the judgment module is negative, the control component identifies that the correct route direction is located in the direction of the advancing direction, and the control component of the bracelet controls the linear motor in the corresponding direction position to vibrate in the second vibration mode according to the identified direction.

7. The bracelet obstacle avoidance navigation system for assisting the blind in traveling according to claim 6, wherein the linear motor generates a first vibration mode having a vibration intensity and/or a vibration frequency different from a second vibration mode.

8. The bracelet obstacle avoidance navigation system for assisting the blind in traveling according to claim 6, wherein when the infrared sensor detects that an obstacle exists in the environment, the distance from the bracelet to the obstacle is detected at the same time, and the vibration state of the first vibration mode generated by the linear motor changes according to the detected distance.

9. The bracelet obstacle avoidance navigation system for assisting the blind in traveling according to claim 8, wherein the distance from the infrared sensor to the obstacle is divided into a plurality of preset distance intervals from far to near, the first vibration mode generated by the linear motor is divided into a plurality of corresponding vibration states according to the preset distance intervals, and when the distance from the infrared sensor to the obstacle enters one of the preset distance intervals, the control assembly controls the linear motor at the corresponding position to enter the corresponding vibration state.

10. The bracelet obstacle avoidance navigation system for assisting the blind in traveling according to claim 6, wherein when the judgment module judges that the advancing direction of the user is not in the correct route direction and the infrared sensor detects that an obstacle exists in the environment, the control module controls the linear motor to generate the first vibration mode with a priority higher than a priority of the linear motor to generate the second vibration mode.

Technical Field

The invention relates to the field of intelligent wearable equipment, in particular to a bracelet obstacle avoidance navigation system and method for assisting a blind person in going out.

Background

Wearable devices are portable devices that are worn directly on the body or integrated into the clothing or accessories of the user; the wearable device is not only a hardware device, but also realizes strong functions through software support, data interaction and cloud interaction, and the wearable device can bring great changes to life and perception of people; the bracelet should be an ornament originally, but this is just a matter before the intelligence science and technology has pushed its big door open; at present, the method attempts to record a series of relevant data such as body building effect, sleep quality, diet arrangement and habits of a user, and can synchronize the data into the mobile terminal equipment of the user, and the terminal equipment may give relevant suggestions according to the self analysis function, so as to play a role in guiding healthy life through the data; the high-grade pedometer has the functions of general pedometer, distance measurement, heat, fat and the like, and also has the special functions of sleep monitoring, high-grade waterproof, Bluetooth 4.0 data transmission, fatigue reminding and the like.

In the prior art, the intelligent bracelet is more and more abundant in function upgrade for normal users, but the improvement for the blind person is very little, the trip problem of the blind person is the most problem to be solved, some improvement for the blind person appears in the existing bracelet on the market, but few and few to the safety problem of the blind person trip, the biggest problem of the blind person trip mainly lies in the direction and the obstacle avoidance problem, no effective solution exists in the two problems on the market, and a new bracelet navigation obstacle avoidance method is urgently needed to solve the problem of the blind person trip.

Disclosure of Invention

Aiming at the defects in the technology, the invention provides the bracelet obstacle avoidance navigation system and the bracelet obstacle avoidance navigation method for assisting the blind in going out.

In order to achieve the above object, the present invention provides a bracelet obstacle avoidance navigation method for assisting a blind person in traveling, wherein a linear motor and an infrared sensor are respectively arranged in a gauge outfit of a bracelet and at two sides and a rear part of the bracelet, the gauge outfit is also provided with a transmission module for data transmission with a mobile device, and the obstacle avoidance navigation method comprises:

the bracelet is connected with the mobile equipment through the transmission module to acquire satellite positioning information and route information from the mobile equipment;

and judging whether the advancing direction of the user is in the correct route direction in real time according to the satellite positioning information and the route information, continuously working by the infrared sensor to detect the obstacles in the environment, and vibrating the linear motor at the corresponding position in a first vibration mode when the infrared sensor detects that the obstacles exist in the environment.

And when the judgment result is negative, identifying the direction of the correct route in the advancing direction, and controlling the linear motor at the corresponding direction position to vibrate in a second vibration mode by the bracelet according to the identified direction.

Specifically, the method comprises the following steps: the first vibration mode has a different vibration intensity and/or vibration frequency than the second vibration mode.

Specifically, the method comprises the following steps: when infrared sensor detects that there is the barrier in the environment, detect the distance of bracelet to barrier simultaneously, the vibration state of first vibration mode changes according to the distance that detects.

Preferably, the method comprises the following steps: the distance that infrared sensor apart from the barrier is divided into a plurality of predetermined distance intervals by far away and near, and first vibration mode is divided into a plurality of vibration states that correspond according to a plurality of predetermined distance intervals, and when infrared sensor discerned that the distance of bracelet to the barrier got into one of them predetermined distance interval, the linear motor of control corresponding position got into corresponding vibration state.

Preferably, the method comprises the following steps: when the fact that the advancing direction of the user is not in the correct route direction is judged, and the infrared sensor detects that an obstacle exists in the environment, the priority of the first vibration mode is larger than that of the second vibration mode.

A bracelet obstacle avoidance navigation system for assisting the travel of the blind person is characterized in that a linear motor and an infrared sensor are respectively arranged in a watch head of a bracelet and at the two sides and the rear part of the bracelet, the watch head is also provided with a transmission module for carrying out data transmission with mobile equipment, and the watch head also comprises a control assembly and a judgment module;

the control component of the bracelet is connected with the mobile equipment through the transmission module to acquire satellite positioning information and route information from the mobile equipment;

the judging module judges whether the advancing direction of the user is in the correct route direction in real time according to the satellite positioning information and the route information, meanwhile, the infrared sensor continuously works to detect obstacles in the environment, and when the infrared sensor detects that the obstacles exist in the environment, the control assembly controls the linear motor at the corresponding position to vibrate in a first vibration mode.

When the judgment result of the judgment module is negative, the control component identifies that the correct route direction is located in the direction of the advancing direction, and the control component of the bracelet controls the linear motor in the corresponding direction position to vibrate in the second vibration mode according to the identified direction.

Specifically, the method comprises the following steps: the linear motor generates a first vibration mode having a different vibration intensity and/or vibration frequency than the second vibration mode.

Specifically, the method comprises the following steps: when the infrared sensor detects that an obstacle exists in the environment, the distance from the bracelet to the obstacle is detected at the same time, and the vibration state of the first vibration mode generated by the linear motor changes according to the detected distance.

Preferably, the method comprises the following steps: the distance between the infrared sensor and the obstacle is divided into a plurality of preset distance intervals from far to near, a first vibration mode generated by the linear motor is divided into a plurality of corresponding vibration states according to the preset distance intervals, and when the distance between the infrared sensor and the obstacle enters one of the preset distance intervals, the control assembly controls the linear motor at the corresponding position to enter the corresponding vibration state.

Preferably, the method comprises the following steps: when the judging module judges that the advancing direction of the user is not in the correct route direction and the infrared sensor detects that an obstacle exists in the environment, the control module controls the linear motor to generate the first vibration mode with the priority higher than that of the linear motor to generate the second vibration mode.

The invention has the beneficial effects that: compared with the prior art, the bracelet obstacle avoidance navigation system and the bracelet obstacle avoidance navigation method for assisting the blind in going out provided by the invention have the advantages that the linear motor and the infrared sensor are respectively arranged in the watch head of the bracelet and at the two sides and the rear part of the bracelet positioned on the watch head, the watch head is also provided with the transmission module for carrying out data transmission with the mobile equipment, and the bracelet is connected with the mobile equipment through the transmission module to acquire satellite positioning information and route information from the mobile equipment; judging whether the advancing direction of a user is in a correct route direction or not in real time according to the satellite positioning information and the route information, simultaneously continuously working by the infrared sensor to detect obstacles in the environment, and vibrating the linear motor at the corresponding position in a first vibration mode when the infrared sensor detects that the obstacles exist in the environment; when the judgment result is negative, identifying the direction of the correct route direction in the advancing direction, and controlling the linear motor at the corresponding direction position to vibrate in a second vibration mode by the bracelet according to the identified direction; through set up a plurality of linear motor cooperation navigation information on the bracelet, thereby the linear motor who corresponds the direction according to the route information control of navigation vibrates for the blind person carries out the direction navigation, sets up infrared sensor and linear motor simultaneously and cooperates to keep away the barrier suggestion through linear motor when navigating, the effectual direction accuracy and the security of guaranteeing the blind person's trip.

Drawings

FIG. 1 is a flow chart of a method of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic diagram of the system of the present invention.

The main element symbols are as follows:

1. a gauge head; 2. a linear motor; 3. an infrared sensor; 4. a transmission module; 5. a decision module; 6. and a control component.

Detailed Description

In order to more clearly describe the present invention, the present invention will be further described with reference to the accompanying drawings.

In the prior art, the intelligent bracelet is more and more abundant in function upgrade for normal users, but the improvement for the blind person is very little, the trip problem of the blind person is the most problem to be solved, some improvement for the blind person appears in the existing bracelet on the market, but few and few to the safety problem of the blind person trip, the biggest problem of the blind person trip mainly lies in the direction and the obstacle avoidance problem, no effective solution exists in the two problems on the market, and a new bracelet navigation obstacle avoidance method is urgently needed to solve the problem of the blind person trip.

In order to solve the defects and deficiencies in the prior art, the invention specifically provides a bracelet obstacle avoidance navigation system and a bracelet obstacle avoidance navigation method for assisting a blind person to go out, please refer to fig. 1-2, the bracelet obstacle avoidance navigation method for assisting the blind person to go out, a linear motor 2 and an infrared sensor 3 are respectively arranged in a meter head 1 of the bracelet and at two sides and the rear part of the bracelet on the meter head 1, the meter head 1 is also provided with a transmission module 4 for data transmission with a mobile device, and the obstacle avoidance navigation method comprises the following steps:

the bracelet is connected with the mobile equipment through the transmission module 4 to acquire satellite positioning information and route information from the mobile equipment;

and judging whether the advancing direction of the user is in the correct route direction in real time according to the satellite positioning information and the route information, simultaneously, continuously working the infrared sensor 3 to detect the obstacles in the environment, and vibrating the linear motor 2 at the corresponding position in a first vibration mode when the infrared sensor 3 detects that the obstacles exist in the environment.

When the judgment result is negative, identifying the direction of the correct route direction in the advancing direction, and controlling the linear motor 2 at the corresponding direction position to vibrate in a second vibration mode by the bracelet according to the identified direction;

when the judgment result is yes, the user is proved to be in the correct advancing route and direction, and the infrared sensor 3 continuously works at the moment to identify the obstacle;

in practical application, because the watch head 1 is usually located in the back of the hand in an upward direction when a human body wears the bracelet, the user makes the watch head 1 face the forward direction, namely, the direction of the watch head 1 is defaulted to be the forward direction, and the linear motor 2 located in the watch head 1 executes a second vibration mode which is a burst of short vibration to prompt the user to move forward in the direction; when the vehicle moves to an intersection needing to turn, the bracelet identifies the direction of the correct route in the advancing direction according to the originally planned route, and controls the linear motors 2 at the corresponding direction positions to execute a second vibration mode to vibrate according to the identified direction so as to prompt a user to turn in the relative direction, wherein if the direction of the turning route is between the positions and the directions of the two linear motors 2, the two motors are simultaneously controlled to execute the second vibration mode to vibrate so as to prompt the user to turn in the direction; in the process that the linear motor 2 executes the second vibration mode to perform vibration navigation, the infrared sensor 3 is continuously operated to continuously detect whether an obstacle enters the identification range of the infrared sensor 3, when the obstacle is identified to enter the identification range, the linear motor 2 corresponding to the position of the infrared sensor corresponding to the obstacle vibrates in the first vibration mode to prompt a user that the obstacle exists in the direction, and similarly, when the identified obstacle is simultaneously identified by the two infrared sensors 3, the obstacle is located in the direction between the two infrared sensors 3, the two linear motors 2 corresponding to the position of the infrared sensors corresponding to the obstacle are controlled to simultaneously vibrate in the first vibration mode to prompt the user.

In the present embodiment, mention is made of: the vibration intensity and/or the vibration frequency of the first vibration mode are different from those of the second vibration mode; preferably, the first vibration mode is a vibration mode with the frequency changing from slow to fast, the vibration mode is mainly set for adapting to the distance between the obstacle and the human body, when the obstacle is far away from the human body, the vibration mode is vibration with lower frequency, and when the obstacle is closer to the obstacle, the vibration frequency is higher, so that the distance between the obstacle is reasonably prompted to a user; the second vibration mode mainly plays a role in prompting when approaching the intersection, so that the second vibration mode only needs to be distinguished from the first vibration mode, and a short burst of vibration is adopted to prompt a user.

Preferably, the first vibration mode may be a continuous vibration mode, and the first vibration mode is a vibration having a lower intensity when the obstacle is far from the human body and a higher intensity when the obstacle is closer to the obstacle.

In the present embodiment, mention is made of: when the infrared sensor 3 detects that an obstacle exists in the environment, the distance from the bracelet to the obstacle is detected at the same time, and the vibration state of the first vibration mode changes according to the detected distance; because the human body is in a state of constantly changing position, the distance and the direction from the barrier are also constantly changing, the vibration state is set to be a dynamic change mode, and the linear motor 2 in the corresponding direction is called by the direction control component 6 of the barrier to carry out different vibration states corresponding to different distances so as to achieve the effect of prompting the distance of the barrier of a user.

In a preferred embodiment, mention is made of: the distance between the infrared sensor 3 and the obstacle is divided into a plurality of preset distance intervals from far to near, the first vibration mode is divided into a plurality of corresponding vibration states according to the preset distance intervals, and when the infrared sensor 3 recognizes that the distance from the bracelet to the obstacle enters one of the preset distance intervals, the linear motor 2 at the corresponding position is controlled to enter the corresponding vibration state;

example 1: the sensing distance of the infrared sensor 3 is 2m, and the sensing distance of 2m is divided into 3 preset distance intervals: 2m-1m is a first preset interval, 1m-0.5m is a second preset interval, and 0.5m-0.2m is a third preset interval; the intensity of the vibration is sequentially increased from the first preset interval to the third preset interval so as to prompt the user of the distance from the obstacle.

Example 2: the sensing distance of the infrared sensor 3 is 2m, and the sensing distance of 2m is divided into 3 preset distance intervals: 2m-1m is a first preset interval, 1m-0.5m is a second preset interval, and 0.5m-0.2m is a third preset interval; the frequency of vibration is sequentially increased from the first preset interval to the third preset interval, and sufficient prompt effect is known by continuous vibration in the third preset interval so as to ensure the safety of a user; to prompt the user for distance from the obstacle.

Example 3: the sensing distance of the infrared sensor 3 is 2m, and the sensing distance of 2m is divided into 4 preset distance intervals: 2m-1.5m is a first preset interval, 1.5m-1m is a second preset interval, 1m-0.5m is a third preset interval, and 0.5m-0.2m is a fourth preset interval; the intensity of the vibration is sequentially increased from the first preset interval to the fourth preset interval so as to prompt the user of the distance from the obstacle.

In a preferred embodiment, mention is made of: when the fact that the advancing direction of the user is not in the correct route direction is judged, and the infrared sensor 3 detects that an obstacle exists in the environment, the priority of the first vibration mode is larger than that of the second vibration mode; in the priority scheduling, the priority of obstacle avoidance is prior to navigation, when an intersection needs to turn at the same time, the linear motor 2 in the corresponding direction should send out the second vibration mode, but if an obstacle is identified at the position, the first vibration mode is preferentially started to help the user to avoid the obstacle, and the main purpose of the setting is to take the life safety of the user as the main consideration.

Example 1: when a user walks to an intersection needing to turn according to the vibration indication of the first vibration mode of the bracelet, the intersection is a right-turn intersection, and a telegraph pole is arranged in the center of the intersection; the bracelet carries out the second vibration mode through linear motor 2 according to the route of planning, right direction that will turn over to this moment, but because the barrier of wire pole appears on the right side, so infrared sensor 3 discerns the barrier and transmits this information to gauge outfit 1 during this time, and gauge outfit 1 shields the second vibration mode signal originally and forms first vibration mode signal to the linear motor 2 that detects the infrared inductor corresponding position of barrier, makes it produce first vibration mode.

A bracelet obstacle avoidance navigation system for assisting a blind person to go out is disclosed, please refer to fig. 1-3, a linear motor 2 and an infrared sensor 3 are respectively arranged in a meter head 1 of the bracelet and at two sides and the rear part of the bracelet, the meter head 1 is also provided with a transmission module 4 for data transmission with mobile equipment, and the meter head 1 further comprises a control assembly 6 and a judgment module 5;

the control component 6 of the bracelet establishes connection with the mobile equipment through the transmission module 4 to acquire satellite positioning information and route information from the mobile equipment;

the judging module 5 judges whether the advancing direction of the user is in the correct route direction in real time according to the satellite positioning information and the route information, meanwhile, the infrared sensor 3 continuously works to detect obstacles in the environment, and when the infrared sensor 3 detects that the obstacles exist in the environment, the control assembly 6 controls the linear motor 2 at the corresponding position to vibrate in a first vibration mode;

when the judgment result of the judgment module 5 is no, the control component 6 identifies that the correct route direction is located in the direction of the advancing direction, and the control component 6 of the bracelet controls the linear motor 2 at the corresponding direction position to vibrate in the second vibration mode according to the identified direction.

When the judgment result is yes, the user is proved to be in the correct advancing route and direction, and the infrared sensor 3 continuously works at the moment to identify the obstacle;

in practical application, because the watch head 1 is usually located in the back of the hand in an upward direction when a human body wears the bracelet, the user makes the watch head 1 face the forward direction, namely, the direction of the watch head 1 is defaulted to be the forward direction, and the linear motor 2 located in the watch head 1 executes a second vibration mode which is a burst of short vibration to prompt the user to move forward in the direction; when the vehicle moves to an intersection needing to turn, the bracelet identifies the direction of the correct route in the advancing direction according to the originally planned route, and controls the linear motors 2 at the corresponding direction positions to execute a second vibration mode to vibrate according to the identified direction so as to prompt a user to turn in the relative direction, wherein if the direction of the turning route is between the positions and the directions of the two linear motors 2, the two motors are simultaneously controlled to execute the second vibration mode to vibrate so as to prompt the user to turn in the direction; in the process that the linear motor 2 executes the second vibration mode to perform vibration navigation, the infrared sensor 3 is continuously operated to continuously detect whether an obstacle enters the identification range of the infrared sensor 3, when the obstacle is identified to enter the identification range, the linear motor 2 corresponding to the position of the infrared sensor corresponding to the obstacle vibrates in the first vibration mode to prompt a user that the obstacle exists in the direction, and similarly, when the identified obstacle is simultaneously identified by the two infrared sensors 3, the obstacle is located in the direction between the two infrared sensors 3, the two linear motors 2 corresponding to the position of the infrared sensors corresponding to the obstacle are controlled to simultaneously vibrate in the first vibration mode to prompt the user.

In the present embodiment, mention is made of: the vibration intensity and/or vibration frequency of the first vibration mode generated by the linear motor 2 are different from those of the second vibration mode, and because the vibration is adopted as an element for prompting the blind, the vibration modes of the first vibration mode and the second vibration mode are distinguished from each other, and can be distinguished from the intensity and frequency of the vibration, so that wrong navigation and obstacle avoidance caused by recognition errors of a user in use can be avoided.

In the present embodiment, mention is made of: when the infrared sensor 3 detects that an obstacle exists in the environment, the distance from the bracelet to the obstacle is detected at the same time, and the vibration state of the first vibration mode generated by the linear motor 2 changes according to the detected distance; because the human body is in a state of constantly changing position, the distance and the direction from the barrier are also constantly changing, the vibration state is set to be a dynamic change mode, and the linear motor 2 in the corresponding direction is called by the direction control component 6 of the barrier to carry out different vibration states corresponding to different distances so as to achieve the effect of prompting the distance of the barrier of a user.

In a preferred embodiment, mention is made of: the distance between the infrared sensor 3 and the obstacle is divided into a plurality of preset distance intervals from far to near, the first vibration mode generated by the linear motor 2 is divided into a plurality of corresponding vibration states according to the preset distance intervals, and when the infrared sensor 3 detects that the distance between the obstacle enters one of the preset distance intervals, the control component 6 controls the linear motor 2 at the corresponding position to enter the corresponding vibration state.

In a preferred embodiment, mention is made of: when the judging module 5 judges that the advancing direction of the user is not in the correct route direction and the infrared sensor 3 detects that an obstacle exists in the environment, the control component 6 controls the priority of the linear motor 2 for generating the first vibration mode to be larger than the priority of the linear motor 2 for generating the second vibration mode; in the priority scheduling, the priority of obstacle avoidance is prior to navigation, when an intersection needs to turn at the same time, the linear motor 2 in the corresponding direction should send out the second vibration mode, but if an obstacle is identified at the position, the first vibration mode is preferentially started to help the user to avoid the obstacle, and the main purpose of the setting is to take the life safety of the user as the main consideration.

Example 1: when a user walks to an intersection needing to turn according to the vibration indication of the first vibration mode of the bracelet, the intersection is a right-turn intersection, and a telegraph pole is arranged in the center of the intersection; the bracelet carries out the second vibration mode through linear motor 2 according to the route of planning, right direction that will turn over to this moment, but because the barrier of wire pole appears on the right side, so infrared sensor 3 discerns the barrier and transmits this information to gauge outfit 1 during this time, and gauge outfit 1 shields the second vibration mode signal originally and forms first vibration mode signal to the linear motor 2 that detects the infrared inductor corresponding position of barrier, makes it produce first vibration mode.

The invention has the advantages that:

1. the linear motors in the corresponding directions are controlled to vibrate according to the navigation route information, so that the blind person can navigate in the directions.

2. Set up infrared sensor and linear motor simultaneously and cooperate to keep away the barrier suggestion through linear motor when the navigation, the effectual direction accuracy and the security of guaranteeing the blind person's trip.

The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.