CN212569546U

CN212569546U - Intelligent accompanying trolley

Info

Publication number: CN212569546U
Application number: CN202021301977.4U
Authority: CN
Inventors: 唐建宇; 叶雪军; 许玲丽; 覃燕冰
Original assignee: HUBEI UNIVERSITY OF ECONOMICS
Current assignee: HUBEI UNIVERSITY OF ECONOMICS
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-02-19
Anticipated expiration: 2030-07-06

Abstract

The utility model relates to an intelligent traveling trolley, which comprises an intelligent traveling trolley and an external intelligent terminal, wherein the intelligent traveling trolley comprises a trolley body, and a power supply, a camera, a plurality of wheels, a wheel driving module and a control module which are arranged on the trolley body; the camera is rotatably arranged at the top of the vehicle body and is used for acquiring the accompanying target and surrounding image information; the wheel driving module is connected with a plurality of wheels and is used for controlling the movement of the wheels; the control module is respectively electrically connected with the power supply, the camera and the wheel driving module and is in wireless communication connection with an external intelligent terminal. The utility model provides an intelligent walking trolley, which can effectively solve the problem of daily outdoor walking safety of the old, children, the disabled and other groups, and improve the safety factor of travel; the system can be used by combining the functions of heart rate monitoring, step counting and the like in the mobile phone app to assist people in healthy traveling.

Description

Intelligent accompanying trolley

Technical Field

The utility model relates to an intelligent vehicle field, concretely relates to intelligence retinue dolly.

Background

According to population data released by the national statistical bureau, 25388 million people in 60 years old and over in 2019 in China account for 18.1 percent of the total population. With the gradual progress of China into the aging society, the safety of the elderly people in going out becomes an important topic which is generally concerned by the society. In addition, the current traffic environment is more and more complex, and the traveling safety of the old people should be paid sufficient attention. The old people have aging phenomena due to physical functions, slow limb reaction and poor flexibility, and are easy to have accidents such as falling, bumping, sprain and the like, and if the old people fall down once, the old people cannot be rescued in time, more serious consequences are often caused. Different from the exuberance of blood and qi of young people, the old people are easy to fatigue, and the excessive activity can cause dizziness, shortness of breath, accelerated heartbeat and the like.

For the old, children, disabled people and other people with potential safety hazards or travel obstacles, if they fall down or suffer from other accidents, they cannot get help in time, which often causes more serious consequences. Therefore, there is a need to develop an intelligent trolley to reduce the risk of the special people going out.

SUMMERY OF THE UTILITY MODEL

To the problem in the background art, the utility model aims to provide an intelligence retinue dolly.

In order to solve the technical problem, the utility model discloses the technical scheme who takes does:

an intelligent traveling trolley comprises a trolley body, a power supply, a camera, a plurality of wheels, a wheel driving module and a control module, wherein the power supply, the camera, the wheels, the wheel driving module and the control module are mounted on the trolley body;

the camera is rotatably arranged at the top of the vehicle body and is used for acquiring the accompanying target and surrounding image information;

the wheel driving module is connected with a plurality of wheels and is used for controlling the movement of the wheels;

the control module is respectively electrically connected with the power supply, the camera and the wheel driving module and is in wireless communication connection with an external intelligent terminal;

the camera is used for acquiring image information of a traveler;

the control module is used for managing a power supply, sending image information acquired by the camera to an external intelligent terminal for processing, receiving a control signal sent back by the external intelligent terminal after the image information acquired by the camera is processed, and controlling the rotation of the camera and the work of the wheel driving module according to the control signal.

In some embodiments, the vehicle body is further provided with an ultrasonic ranging module electrically connected with the control module, and the ultrasonic ranging module is arranged at the front end of the intelligent trolley and used for transmitting ultrasonic waves forward and receiving reflected ultrasonic waves so as to obtain distance information between the intelligent trolley and a front obstacle; the control module is also used for automatically controlling the intelligent traveling trolley to avoid the obstacle according to the distance information between the intelligent traveling trolley and the obstacle in front.

In some embodiments, the vehicle body is further provided with a voice alarm module electrically connected with the control module, and the voice alarm module is used for giving a voice alarm when the image information of the traveler shot by the camera is abnormal.

In some embodiments, the wheel drive module comprises a wheel drive motor and a wheel steering engine.

Compared with the prior art, the utility model has the advantages that: the utility model provides an intelligent walking trolley, which can effectively solve the problem of daily outdoor walking safety of the old, children, the disabled and other groups, and improve the safety factor of travel; the system can be used by combining the functions of heart rate monitoring, step counting and the like in the mobile phone app to assist people in healthy traveling.

Drawings

Other objects and advantages of the present invention will become apparent from the following description of the invention, which is made with reference to the accompanying drawings, and can help to provide a thorough understanding of the present invention.

Fig. 1 is an appearance schematic diagram of the intelligent traveling trolley provided by the utility model;

fig. 2 is a schematic diagram of module connection of the intelligent traveling trolley provided by the present invention;

description of reference numerals:

1. a vehicle body; 2. a power source; 3. a camera; 4. a wheel; 5. a wheel drive module; 6. a control module; 7. an ultrasonic ranging module; 8. and a voice alarm module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs.

Referring to fig. 1 and 2, the utility model provides an intelligence retinue dolly, including automobile body 1 and install power 2, camera 3, a plurality of wheel 4, wheel drive module 5 and control module 6 on automobile body 1.

The camera 3 is rotatably arranged at the top of the vehicle body 1 and is used for acquiring the image information of the accompanying target and the periphery; the wheel drive module 5 is connected to a plurality of wheels 4 for controlling the movement of the wheels 4.

As shown in fig. 2, the control module 6 is electrically connected to the power supply 2, the camera 3 and the wheel driving module 5, and is in wireless communication connection with an external intelligent terminal (such as a smart phone or a computer).

Further, when the intelligent traveling trolley works, the camera 3 is used for acquiring image information of a traveler. The control module 6 is used for managing the power supply 2, sending the image information acquired by the camera 3 to an external intelligent terminal for processing, receiving a control signal sent back by the external intelligent terminal after the image information acquired by the camera 3 is processed, and controlling the rotation of the camera 3 and the work of the wheel driving module 5 according to the control signal. The external intelligent terminal can be used for processing target image information shot by the camera 3 to generate a control signal to control the intelligent traveling trolley to realize the traveling tracking of the target.

Preferably, the vehicle body 1 is further provided with an ultrasonic ranging module 7 electrically connected with the control module 6, and the ultrasonic ranging module 7 is arranged at the front end of the intelligent trolley and used for transmitting ultrasonic waves forward and receiving reflected ultrasonic waves so as to obtain distance information between the intelligent trolley and a front obstacle; the control module 6 is also used for automatically controlling the intelligent trolley to avoid the obstacle according to the distance information between the intelligent trolley and the obstacle in front.

Preferably, the vehicle body 1 is further provided with a voice alarm module 8 electrically connected with the control module 6, and the voice alarm module 8 is used for giving a voice alarm when the image information of the traveler shot by the camera is abnormal.

The intelligent trolley can be used by people with potential safety hazards or travel obstacles such as old people, children and disabled people, people needing to be followed are taken as targets before traveling, the intelligent trolley moves along with the targets and continuously takes pictures, and the pictures are sent to an external intelligent terminal through the control module 6; when the abnormal change of the image of the target is detected, such as the position and the posture of the target in the picture are greatly changed in a short time, such as an accidental fall or other accidental situations, the intelligent accompanying trolley can send out a voice alarm through the voice alarm module 8 at the moment so as to ask for help for people nearby; meanwhile, a prompt signal can be sent to relatives of the traveler through an external intelligent terminal (an intelligent mobile phone), for example, the prompt signal can automatically dial a system pre-stored relative mobile phone number or automatically send a short message to the system pre-stored relative mobile phone to prompt the relatives to rescue; if the accident is caused by the responsibility of other people, the video image information instantly shot by the intelligent accompanying trolley can be used as the evidence for judging the responsibility.

Further, the wheel driving module 5 comprises a wheel driving motor and a wheel steering engine.

In a specific embodiment, the control module 6 can be constructed based on a raspberry pi 4b mainboard, is electrically connected with modules such as the camera 3, the wheel driving module 5, the ultrasonic ranging module 7, the voice alarm module 8 and the like through an I/O port of the control module, and is in wireless communication connection with an external intelligent terminal through a Bluetooth chip, a WIFI chip or a 4G/5G network; the wheel driving motor in the wheel driving module 5 can be controlled by an L293D motor driving chip, and the wheel steering engine can be SG90 steering engine.

Specifically, the intelligent traveling trolley realizes target traveling tracking according to the following steps: s1, before tracking, acquiring video image information of a plurality of groups of tracked targets (namely travelers) through the camera 3 of the intelligent trolley, and training by using the video image information to obtain a tracking model of the tracked targets; s2, after tracking is started, a camera of the intelligent trolley detects a tracked target by using the current tracking model, and image information of the tracked target is continuously obtained in real time; s3, adjusting the motion of the intelligent trolley and the orientation of the camera 3 according to the change of the image information of the tracked target; and S4, repeating the steps S2 and S3 to realize the visual tracking of the intelligent pallet on the target.

In step S2, the image information of each frame acquired in real time is stored in the training set, and a new tracking model is trained by using the image information in the training set, when the number of frames of the image information stored in the training set reaches a preset threshold, the new tracking model is used to replace the original tracking model as the current tracking model, and the image information in the training set is emptied.

Further, in step S1, a tracking model of the tracked target is obtained through Single Shot multi-box Detector (SSD) algorithm training; in step S2, the camera 3 of the intelligent traveling trolley detects the tracked target through the SSD algorithm, and trains a new tracking model through the SSD algorithm. When the SSD algorithm is used for target detection, firstly, a plurality of rectangular assumed target frames with different scales and different length-width ratios are generated; then, applying a plurality of different convolution filters to each convolution layer so as to obtain the value and the position offset of each assumed target frame and determine a series of candidate target frames; and then determining a final detection result from the candidate target frames by a non-maximum suppression strategy, namely obtaining the optimal rectangular target frame.

Specifically, in step S1, before tracking is started, a training set (which may be implemented based on Python) is created in the external intelligent terminal, multiple sets of image information are stored in the training set, and then each frame of image information in the training set is processed by a Single Shot multi-box Detector (SSD) algorithm, and a tracking model is obtained after comprehensive consideration. In step S2, the image information collected in real time is processed by the SSD algorithm and compared with the tracking model, so that the camera 3 of the intelligent cart detects the tracked target, and meanwhile, a new training set is created in the external intelligent terminal, the image information of each frame obtained in real time is stored in the new training set, and the new tracking model is trained by the SSD algorithm using the image information in the new training set, when the number of frames of the image information stored in the new training set reaches a preset threshold, that is, the new tracking model is used to replace the original tracking model to serve as the current tracking model, and the image information in the training set is emptied. In step S3, processing the image information of the latest frame by SSD algorithm, comparing with the current tracking model, and if the rectangular target frame corresponding to the frame image becomes smaller or larger, that is, the target distance becomes farther or closer to the intelligent cart, sending a control signal to control the intelligent cart to move forward or backward with respect to the tracked target; if the position of the rectangular target frame corresponding to the frame of image deviates leftwards or rightwards, that is, the position of the tracked target changes, if the deviation amplitude is smaller than a preset threshold value, only the camera 3 is controlled to rotate, the orientation of the camera 3 is changed, and if the deviation amplitude is larger than the preset threshold value, the intelligent traveling trolley is controlled to steer, so that the rectangular target frame corresponding to the tracked target is close to be unchanged. In addition, if the change degree of the rectangular target frame exceeds a preset maximum threshold value, it indicates that an accident (such as a fall) may occur, and then alarm information is sent out.

In addition, pedestrians, vehicles and the like around the tracked target in the picture shot by the camera 3 can be detected through the SSD algorithm, and voice prompts such as 'people ahead', 'people nearby', 'vehicles ahead', 'vehicles nearby' and the like can be sent out through the voice alarm module 8, so that the user can walk more safely.

In addition, when the ultrasonic ranging module 7 detects that an obstacle appears in front of the intelligent traveling trolley, the control module 6 automatically controls the wheel driving module 5 to work, changes the movement direction of the trolley to bypass the obstacle, and controls the camera 3 to rotate in the direction opposite to the turning direction of the trolley so as to avoid losing a tracking target.

In conclusion, the intelligent walking trolley provided by the utility model can effectively solve the problem of daily outdoor walking safety of the old, children, the disabled and other groups, and improve the safety coefficient of traveling; the system can be used by combining the functions of heart rate monitoring, step counting and the like in the mobile phone app to assist people in healthy traveling.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An intelligent accompanying trolley is characterized by comprising a trolley body (1), a power supply (2), a camera (3), a plurality of wheels (4), a wheel driving module (5) and a control module (6), wherein the power supply (2), the camera (3), the wheels (4), the wheel driving module (5) and the control module (6) are mounted on the trolley body (1);

the camera (3) is rotatably arranged at the top of the vehicle body (1) and is used for acquiring the accompanying target and surrounding image information;

the wheel driving module (5) is connected with a plurality of wheels (4) and is used for controlling the movement of the wheels (4);

the control module (6) is respectively electrically connected with the power supply (2), the camera (3) and the wheel driving module (5) and is in wireless communication connection with an external intelligent terminal;

the camera (3) is used for acquiring image information of a traveler;

the control module (6) is used for managing the power supply (2), sending the image information acquired by the camera (3) to an external intelligent terminal for processing, receiving a control signal sent back by the external intelligent terminal after the image information acquired by the camera (3) is processed, and controlling the rotation of the camera (3) and the work of the wheel driving module (5) according to the control signal.

2. The intelligent trolley according to claim 1, wherein the body (1) is further provided with an ultrasonic ranging module (7) electrically connected with the control module (6), and the ultrasonic ranging module (7) is arranged at the front end of the intelligent trolley and used for transmitting ultrasonic waves forward and receiving reflected ultrasonic waves so as to obtain distance information between the intelligent trolley and an obstacle ahead; the control module (6) is also used for automatically controlling the intelligent trolley to avoid the obstacle according to the distance information between the intelligent trolley and the obstacle in front.

3. The intelligent trolley according to claim 1, wherein the trolley body (1) is further provided with a voice alarm module (8) electrically connected with the control module (6), and the voice alarm module (8) is used for giving a voice alarm when image information of a traveler shot by the camera is abnormal.

4. The intelligent trolley according to claim 1, wherein the wheel driving module (5) comprises a wheel driving motor and a wheel steering engine.