CN110597117A - Intelligent anti-falling coat and hat system based on IMU and use method thereof - Google Patents
Intelligent anti-falling coat and hat system based on IMU and use method thereof Download PDFInfo
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- CN110597117A CN110597117A CN201910848509.4A CN201910848509A CN110597117A CN 110597117 A CN110597117 A CN 110597117A CN 201910848509 A CN201910848509 A CN 201910848509A CN 110597117 A CN110597117 A CN 110597117A
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/01—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with reflective or luminous safety means
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- Physical Education & Sports Medicine (AREA)
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- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Helmets And Other Head Coverings (AREA)
Abstract
The invention relates to the technical field of personal safety control, in particular to an intelligent anti-falling coat and hat system based on an IMU (inertial measurement Unit) and a using method thereof, wherein the system comprises an acquisition subsystem, a control subsystem and a protection subsystem; the acquisition subsystem comprises a camera and a plurality of IMU sensors, and the camera acquires images or videos around a human body; the method comprises the following steps that a plurality of IMU sensors respectively acquire IMU data of different parts of a human body; the control subsystem jointly analyzes IMU data of all parts of the human body, judges the state of all parts of the human body, judges the conditions of surrounding road sections according to images or videos and reminds when the conditions are abnormal; the protection subsystem comprises an inflator pump and a gas bearing body, and when the control subsystem judges that the person is about to fall down, the inflator pump of the body part which is about to contact with the ground is controlled to inflate the corresponding gas bearing body. The system can provide integral protection for the landing part of the body in a short time, improve the protection level and the protection range, reduce the damage and remind a user in time when the road section is abnormal.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of personal safety control, in particular to an intelligent anti-falling coat and hat system based on an IMU (inertial measurement Unit) and a using method thereof.
[ background of the invention ]
Personal safety has an incisive relationship with everyone, so the method is always a very important field. With the vigorous construction of infrastructures and the increase of potholes on the road surface, the possibility that the human body is fallen down and injured is increased; in addition, in many scenes, a human body is easy to unbalance, and then falls down and is injured, especially in scenes such as outdoor sports and game experience, accidents are inevitable; for another example, in a house using tiles to lay a floor, once the tile floor is stained with water, the tile floor becomes slippery, which is very likely to cause people in the house, especially the elderly, to fall down on the ground; moreover, most of the old people are easy to be knocked over, and especially the old people are easy to be knocked over in outdoor places such as parks, malls and the like where people flow more densely. In addition, the problem of high medical expense is increasingly obvious to the problem of protection after people fall down, and how to reduce the injury suffered by people after falling down is more and more concerned by people when the risk is reduced to the minimum.
At present, people usually complete the prevention after falling through the protective equipment, for example, the wrist pad, the knee pad, the elbow pad, the helmet and the like of physical protection such as a foam protection pad are filled inside, but the existing protective equipment often has the following problems: the protective clothing can only protect specific parts of the body, and the protection range is too small, so that the landing part of the body is difficult to be effectively protected; the protection force of the protective tool for protecting the landing part of the body is often insufficient, and the protective tool is not suitable for being worn for a long time; the protective clothing can only play the passive protection role, and the protection effect is not good.
In view of the above, it is an urgent problem in the art to overcome the above-mentioned drawbacks of the prior art.
[ summary of the invention ]
The technical problems to be solved by the invention are as follows:
to the human easy fall down injured problem, mainly protect through wearing the protective equipment at present, but the protective equipment protective range undersize is difficult to effectively protect the health and falls to the ground the position, and the protection dynamics is not enough and is unsuitable to dress for a long time, can only play passive protective effect, and the protecting effect is not good.
The invention achieves the above purpose by the following technical scheme:
in a first aspect, the invention provides an intelligent anti-falling coat and hat system based on an IMU (inertial measurement Unit), which comprises an acquisition subsystem, a control subsystem and a protection subsystem, wherein the acquisition subsystem, the control subsystem and the protection subsystem are mutually connected;
the acquisition subsystem comprises one or more cameras and a plurality of IMU sensors, and the one or more cameras are used for acquiring images or videos around a human body and transmitting the images or videos to the control subsystem; the IMU sensors are respectively arranged at different parts of the human body and are used for acquiring IMU data of each part of the human body in real time and transmitting the IMU data to the control subsystem;
the control subsystem is used for carrying out combined analysis on IMU data of each part of the human body, judging the current state of each part of the human body and controlling the protection subsystem according to the judgment result; meanwhile, images or videos around the human body are analyzed, the conditions of surrounding road sections are judged, and a prompt is sent out when the conditions are abnormal;
the protection subsystem includes pump and gas supporting body, works as when control subsystem judges that the human body is about to be in the state of falling down, sends control signal to the pump of the health position that is about to contact with ground, makes the pump of this position aerify for corresponding gas supporting body.
Preferably, the IMU sensor comprises three single axis accelerometers and three single axis gyroscopes, the IMU data comprising acceleration and angular velocity respectively;
the three single-axis accelerometers are used for detecting acceleration signals of three independent axes of corresponding parts of a human body in real time, and the three single-axis gyroscopes are used for detecting angular velocity signals of three independent axes of corresponding parts of the human body in real time.
Preferably, the control subsystem comprises a microcontroller and a driving circuit which are connected with each other, and the driving circuit is connected with an inflator pump in the protection subsystem;
the microcontroller is used for calculating the postures of all parts of the human body according to the angular velocity and the acceleration, and judging whether the human body has a falling tendency or not and the body part which is to be contacted with the ground when the human body has the falling tendency;
when the human body is judged to have the falling tendency, the microcontroller controls the driving circuit to drive the inflator pump at the corresponding part to start working.
Preferably, the protection subsystem further comprises a voice prompt module and/or a light prompt module;
when the situation of the surrounding road sections is abnormal, the voice prompt module is used for sending voice prompt to a user using the intelligent anti-falling clothes and hat system, and the light prompt module is used for sending light early warning to the user using the intelligent anti-falling clothes and hat system.
Preferably, the acquisition subsystem further comprises a wireless communication module, and the wireless communication module is respectively connected with the plurality of IMU sensors and the camera so as to transmit IMU data acquired by the plurality of IMU sensors and image or video data acquired by the camera to the control subsystem; the wireless communication module is used for data transmission through a Bluetooth, a local area network, a ZigBee network or a mesh network.
Preferably, the collecting subsystem further comprises a brightness sensor arranged on the coat and hat body and used for collecting the brightness of the light around the human body in real time and transmitting the brightness to the control subsystem;
the protection subsystem further comprises lighting equipment arranged on the coat and hat body, and when the fact that the brightness of light around a human body is lower than a preset threshold value is detected, the control subsystem controls the lighting equipment to work.
Preferably, the control subsystem and the protection subsystem are both arranged on a coat and hat body, and the coat and hat body comprises a coat, trousers and a hat; the control subsystem and the protection subsystem are in wired connection through buckles among the coat, the trousers and the hat.
In a second aspect, the invention provides a method for using an intelligent drop-proof hat and coat system based on an IMU, which adopts the intelligent drop-proof hat and coat system based on the IMU in the first aspect, and the method comprises the following steps:
the IMU data of each part of the human body are collected in real time through a plurality of IMU sensors respectively arranged at different parts of the human body and are transmitted to the control subsystem;
the control subsystem jointly analyzes the current states of all parts of the human body according to the IMU data, and judges whether the human body has a falling tendency or not and the body part which is about to contact with the ground when the human body has the falling tendency;
when the human body tends to fall down, the control subsystem sends a control signal to the inflator pump of the body part to be in contact with the ground, so that the inflator pump of the body part inflates the corresponding gas bearing body.
Preferably, the using method further comprises:
the camera collects images or video data around the human body in real time and transmits the images or video data to the control subsystem; and the control subsystem analyzes the road section situation around the human body according to the image or video data, judges whether the road section situation is abnormal or not, and sends out a prompt if the road section situation is abnormal.
Preferably, the using method further comprises:
the brightness of the surrounding human body is real-time through a brightness sensor arranged on the coat and hat body and is transmitted to the control subsystem; the control subsystem compares the collected brightness of the human body periphery with a preset threshold value, and if the brightness of the human body periphery is lower than the preset threshold value, the lighting equipment on the coat and hat body is controlled to work.
The invention has the beneficial effects that:
according to the invention, the IMU sensors are respectively arranged at different parts of the human body, and the states of the parts of the human body can be obtained and whether the human body has a falling tendency or not can be judged through real-time detection and linkage analysis of IMU data of the parts of the human body, so that the accuracy and reliability of prejudgment are greatly improved; when a falling tendency exists, the inflation pump at the corresponding part can be controlled to work in time, the clothes and the hat can be quickly filled, the integral protection is effectively provided for the landing part of the body in a short time, the protection level and the protection range are improved, and the injury after injury is reduced; the situation of the surrounding road sections can be judged by analyzing the image or video data collected by the camera, and the user is timely reminded when the road sections are abnormal, so that the possibility of falling injury of the user is reduced.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of an intelligent drop-resistant hat and coat system based on an IMU according to an embodiment of the present invention;
FIG. 2 is a block diagram of an IMU-based intelligent anti-drop system according to an embodiment of the present invention;
fig. 3 is a block diagram of an acquisition subsystem according to an embodiment of the present invention;
FIG. 4 is a block diagram of a control subsystem according to an embodiment of the present invention;
fig. 5 is a block diagram of a protection subsystem according to an embodiment of the present invention;
fig. 6 is a block diagram of another acquisition subsystem according to an embodiment of the present invention;
FIG. 7 is a block diagram of another protection subsystem according to an embodiment of the present invention;
fig. 8 is a flowchart of a method for using an intelligent drop-resistant hat and coat system based on an IMU according to an embodiment of the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the embodiments of the present invention, the symbol "/" indicates the meaning of having both functions, and the symbol "a and/or B" indicates that the combination between the preceding and following objects connected by the symbol includes three cases of "a", "B", "a and B".
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The invention will be described in detail below with reference to the figures and examples.
Example 1:
the embodiment of the invention provides an intelligent anti-falling coat and hat system based on an IMU (inertial measurement Unit), which can effectively prevent falling injuries of human bodies. As shown in fig. 1 and 2, the intelligent anti-falling coat and hat system mainly comprises an acquisition subsystem, a control subsystem and a protection subsystem. The control subsystem and the protection subsystem are usually directly arranged on a coat and hat body, and the acquisition subsystem can be arranged on the coat and hat body or directly arranged on a human body; the coat and hat body is directly worn on a human body and generally comprises a coat, trousers and a hat. The acquisition subsystem is used for acquiring data and sending the data to the control subsystem, the control subsystem receives the data from the acquisition subsystem and analyzes and judges the data, and the protection subsystem protects a human body under the control of the control subsystem. The concrete structure is as follows:
referring to fig. 3, the acquisition subsystem includes a camera and a plurality of Inertial measurement units (IMU sensors), and the camera may be one or more, and is installed outside the coat and hat body and faces different directions, respectively, for acquiring images or videos around the human body in different directions and transmitting the images or videos to the control subsystem. The IMU sensors are respectively arranged at different parts of a human body, such as wrists, ankles, collars, waists, heads and the like, so as to be used for acquiring IMU data of all parts of the human body in real time and transmitting the IMU data to the control subsystem; the IMU sensors can be respectively installed at different parts of a human body such as a wrist, an ankle, a collar, a waist, a head and the like in a magic tape mode, so that the problem of discomfort caused by long-time wearing is solved.
The control subsystem receives IMU data from all parts of a human body on one hand, and then jointly analyzes the IMU data of all parts of the human body to judge the current state of all parts of the human body, mainly judges whether the human body has a falling tendency or not and the part of the human body which is about to contact with the ground when the human body has the falling tendency, namely the landing position of the human body, and controls the protection subsystem according to the judgment result. On the other hand, the method also receives image or video data around the human body, analyzes the image or video data around the human body, judges the situation of the surrounding road section, and sends out a prompt when the road section is abnormal; for example, when it is determined that there is an obstacle in front or a depression in the road surface in front is serious, a warning is given to the user so that the user can decelerate in time, notice the surrounding situation, and further reduce the possibility of falling.
Referring to fig. 5, the protection subsystem includes an inflator pump and a gas carrier, which are connected to each other, and when the control subsystem determines that the human body is about to fall down, a control signal is sent to the inflator pump of the body part about to contact with the ground, so that the inflator pump of the body part inflates the corresponding gas carrier, and the inflator pump fills the corresponding gas carrier, so that the rapid response is achieved, the coat and hat system can be quickly filled in a short time, the ground part of the human body is protected, and the injury is reduced; wherein, the gas carrier can be specifically an air bag, an air cushion or an air pipe.
In the intelligent anti-falling coat and hat system provided by the embodiment of the invention, the IMU sensors are respectively arranged at different parts of the human body, so that the states of all parts of the human body can be intelligently analyzed according to the IMU data of all parts of the human body, the accuracy and the reliability of prejudgment are greatly improved, the inflator pump of the corresponding part can be timely controlled to work when a falling tendency exists, the coat and hat can be quickly filled in a short time, the integral protection is effectively provided for the falling part of the body, the protection level and the protection range are improved, and the injury after injury is reduced; and the condition of the surrounding road sections can be acquired by arranging the camera, and the user is timely reminded when the road sections are abnormal, so that the possibility that the user falls down is further reduced.
Further, the IMU sensor includes three single axis accelerometers and three single axis gyroscopes, the IMU data including acceleration and angular velocity, respectively. The human body is falling down the in-process, and the health can produce certain acceleration towards the ground direction, the accelerometer of three unipolar is used for the independent triaxial acceleration signal of human corresponding site of real-time detection, the gyroscope of three unipolar is used for the independent triaxial angular velocity signal of human corresponding site of real-time detection, the direction of motion information of health promptly.
Referring to fig. 3, the acquisition subsystem further includes a wireless communication module, which is respectively connected to the plurality of IMU sensors and the camera, so as to transmit IMU data acquired by the plurality of IMU sensors and image or video data acquired by the camera to the control subsystem; the wireless communication module may specifically transmit the IMU data and the image or video data to the control subsystem through a bluetooth, a local area network, a ZigBee network, or a mesh network, which is not specifically limited herein. In addition, one wireless communication module can be arranged and is shared by the plurality of IMU sensors and the camera, as shown in fig. 3; the plurality of IMU sensors can be correspondingly connected with the camera respectively, and the IMU sensors are used for transmitting IMU data of corresponding body parts and image or video data to the control subsystem respectively.
Referring to fig. 4, the control subsystem includes a microcontroller and a driver circuit connected to each other, the driver circuit being connected to the inflator in the protection subsystem. The microcontroller receives the angular velocity and acceleration data sent by each IMU sensor through the wireless communication module, and further calculates the postures of all parts of the human body according to the angular velocity and the acceleration to judge whether the human body has a falling tendency or not and the body part which is about to be contacted with the ground when the human body has the falling tendency; when the human body is judged to have the falling tendency, the microcontroller controls the driving circuit to drive the inflator pump at the corresponding part to start working.
Meanwhile, the microcontroller receives the image or video data around the human body sent by the camera through the wireless communication module, analyzes and judges whether the situation of the surrounding road section is abnormal or not through the image or video data, and timely reminds the user when the situation of the surrounding road section is abnormal. Referring to fig. 7, in a specific embodiment, the protection subsystem further includes a voice prompt module and/or a light prompt module, and when the situation of the surrounding road section is abnormal, the microcontroller may send the abnormal road section information to the voice prompt module and/or the light prompt module in a manner of bluetooth, a local area network, a ZigBee network, a mesh network, or the like; the intelligent anti-falling clothes and hat system comprises a voice prompt module, a light prompt module and a lighting early warning module, wherein the voice prompt module is used for sending voice prompt to a user using the intelligent anti-falling clothes and hat system, and the lighting early warning module is used for sending lighting early warning to the user using the intelligent anti-falling clothes and hat system, so that the user can receive the prompt and exercise carefully.
In the protection subsystem, a plurality of inflation pumps can be arranged, each inflation pump is connected with a corresponding gas bearing body through a pipeline, namely the inflation pumps and the gas bearing bodies are arranged in a one-to-one mode; when the human body is about to fall down and a certain part is about to contact with the ground, the inflator pump at the part inflates the gas bearing body at the corresponding part. Of course, the inflator pump can be only provided with one, and is respectively connected with the gas bearing bodies of all parts of the body through a plurality of pipelines, namely, the inflator pump and the gas bearing bodies are arranged in a one-to-many manner, each pipeline is provided with a corresponding valve, and each valve is in a closed state under a normal state; when a human body is about to fall down and a certain part is about to contact with the ground, the valves on the pipelines between the inflator pump and the corresponding gas bearing bodies of the part are opened, and the other valves are still closed, so that the inflator pump can inflate the gas bearing bodies of the part through the corresponding pipelines.
In addition, when a human body falls down, only one part is usually contacted with the ground; for example, the shoulders and the back of the user can touch the ground, and the gas carrying bodies at the two parts need to be controlled to complete inflation filling, so that the maximum protection effect is achieved on the human body. When more than one body part lands on the ground, the landing sequence of different body parts may also be different, and if only one inflator pump is arranged to inflate all the gas bearing bodies together, the passages between the inflator pump and the gas bearing bodies of all the parts on the ground are opened simultaneously (namely, the valves on the corresponding passages are opened simultaneously), so that the inflator pump can inflate the gas bearing bodies of all the parts on the ground simultaneously; on the other hand, the channel between the inflator and the gas carrier of the body part that lands first may also be controlled to open, and then the channel between the inflator and the gas carrier of the body part that lands later may be controlled to open after a preset time (the preset time is shorter, for example, 0.5s, it is required to ensure that the gas carrier of the body part that lands later may also have enough time to inflate, and the body part that lands later may also form effective protection). When only one inflator pump is arranged, if the inflator pump inflates the air bearing bodies of all parts of the ground at the same time, the inflation efficiency may not be high enough; by arranging the sequential inflation sequence, the gas bearing bodies of all the landing parts can be inflated in time while the inflation efficiency is ensured, and all the landing body parts are protected.
Furthermore, the intelligent anti-falling coat and hat system usually further comprises a power supply and a power switch which are arranged on the coat and hat body, wherein the power supply is used for respectively supplying power to the acquisition subsystem, the control subsystem and the protection subsystem; the power switch is connected with the power supply so as to control the on-off of the power supply, and when the power switch is operated to switch on the power supply, power can be supplied to each subsystem.
Furthermore, the control subsystem and the protection subsystem are arranged on the coat and hat body and are in wired connection through buckles among the coat, the trousers and the hat, and therefore the reaction and execution time timeliness of the intelligent anti-falling coat and hat system is guaranteed. In addition, considering that when the user goes out at night for activity, due to insufficient brightness of the surrounding, it may be difficult for the surrounding people to find the user who is moving, in view of the above problems, one or more fluorescent marks may be provided outside the coat and hat body, so as to ensure the safety of the user wearing the intelligent anti-falling coat and hat system during night activity.
In a specific embodiment, an installation schematic diagram of the intelligent anti-falling coat and hat system is shown in fig. 1, wherein 1, 2, 3, 4, 5, 6 and 13 in the drawing correspond to the acquisition subsystems, and 1-6 respectively represent IMU sensors arranged at different parts of a human body, and are used for acquiring IMU data of each part of the human body in real time and transmitting the IMU data to the microcontroller through the wireless communication module; and 13, a camera provided at the upper garment of the cap body. Wherein, IMU sensor 1 and IMU sensor 2 set up respectively at human chest and belly, and IMU sensor 3 and IMU sensor 4 set up respectively in human two wrists department, and IMU sensor 5 and IMU sensor 6 set up respectively in human two ankles department, and each IMU sensor all installs at human corresponding position through the mode that the magic was pasted, and it is convenient to dismantle to can comfortable wearing for a long time.
In the figures, 7, 8 and 9 correspond to the control subsystem, 8 represents a microcontroller, and 7 and 9 represent two driving circuits which are respectively arranged at the positions of the coat and the trousers of the coat and hat body and are further respectively used for driving the inflation pumps at the positions of the coat and the trousers to work. In the figures, 10, 11, 12 respectively show the protection subsystems arranged at different parts of the human body, and each protection subsystem consists of an inflator pump and an air bearing body and is responsible for protecting different parts of the human body. The control subsystem and the protection subsystem are in wired connection through buckles among the coat, the trousers and the hat, and the reaction and execution time and timeliness of the intelligent anti-falling coat and hat system are guaranteed.
Further, in an alternative embodiment, if the user currently using the intelligent anti-falling coat and hat system is denoted as user a, it is considered that if the user a falls and is not found in time, the user a may not be treated in time and his injuries may be delayed. To solve the above problem, the acquisition subsystem may further include a positioning sensor, as shown in fig. 6; the positioning sensor can be arranged at any position on the coat and hat body and used for collecting position information of a human body in real time and transmitting the position information to the control subsystem, and the positioning sensor can be specifically positioned through a GPS (global positioning system) or a network and the like, and is not particularly limited herein. When the control subsystem judges that the human body is about to be in a falling state, the control subsystem sends the human body position information collected by the positioning sensor to the designated intelligent terminal. The designated intelligent terminal is usually carried by other users closely related to the user A, such as family members of the user A; by arranging the positioning sensor and sending the position information to the intelligent terminal (such as a mobile phone) of the family in time, the family can quickly lock the position of the user A, and the family can easily find the fallen user A to win time for the treatment.
In addition, when the user moves at night, if the surrounding illumination is insufficient, the judgment of the user on the surrounding environment is directly influenced, and the user is more likely to fall down. In order to solve the above problem, the collecting subsystem may further include a brightness sensor disposed on the coat and hat body, as shown in fig. 6; the brightness sensor is used for collecting the brightness information around the human body in real time and transmitting the brightness information to the control subsystem. Correspondingly, the protection subsystem further comprises a lighting device arranged on the coat body, as shown in fig. 7. After the brightness information collected by the brightness sensor is transmitted to the control subsystem, the microcontroller can compare the collected brightness with a preset threshold value, and when the brightness around the human body is found to be lower than the preset threshold value, the control subsystem can drive the lighting equipment to work by controlling the corresponding driving circuit, so that a road section in front of the lighting equipment is illuminated for a user, the activity of the user is facilitated, and the possibility that the user falls down is reduced. Further considering that when the user goes out at night, people around the user are possibly difficult to find the user due to insufficient brightness of the surrounding light, one or more fluorescent marks can be arranged outside the coat and hat body, and the safety of the intelligent anti-falling coat and hat system worn by the user during night activities is guaranteed.
In summary, the intelligent anti-falling coat and hat system provided by the embodiment of the invention has the following advantages:
the IMU sensors are respectively arranged at different parts of the human body, and the state and the landing position of the human body are jointly analyzed and judged through IMU data of all parts of the human body, so that the accuracy and the reliability of judgment can be greatly improved; moreover, each IMU sensor adopts a wearing mode of a magic tape, so that the IMU sensor is suitable for being worn comfortably for a long time;
the inflator pump can be triggered locally, the coat and hat system can be filled quickly in a short time, the integral protection is provided for the landing part of the body, the protection level and the protection range are improved, and the later maintenance cost is greatly reduced;
through setting up the camera and to the image or the video data analysis of camera collection, can judge the highway section condition around to remind the user when the highway section is unusual, reduce the possibility that the user tumbles.
Example 2:
on the basis of the above embodiment 1, the embodiment of the present invention further provides a method for using the intelligent IMU-based anti-drop coat and hat system described in embodiment 1. As shown in fig. 8, the using method mainly includes the following steps:
step 201, a plurality of IMU sensors respectively arranged at different parts of a human body are used for collecting IMU data of each part of the human body in real time and transmitting the IMU data to a control subsystem.
As can be seen from embodiment 1, the plurality of IMU sensors are respectively disposed at different parts of the human body, such as the wrist, the ankle, the collar, the waist, and the head, so as to collect IMU data of each part of the human body in real time. Wherein the IMU sensor comprises an accelerometer and a gyroscope, the IMU data comprising acceleration and angular velocity, respectively; the accelerometer can detect acceleration signals of corresponding parts of a human body in real time and transmits acceleration data to the microcontroller through the wireless communication module; the gyroscope can detect the angular velocity signals (namely the movement direction information of the body) of the corresponding part of the human body in real time and transmit the angular velocity data to the microcontroller through the wireless communication module.
Step 202, the control subsystem jointly analyzes the current states of all parts of the human body according to the IMU data, and judges whether the human body has a falling tendency or not and the body part to be in contact with the ground when the human body has the falling tendency.
After the microcontroller receives the angular velocity and the acceleration data sent by each IMU sensor through the wireless communication module, the postures of all parts of the human body can be calculated according to the angular velocity and the acceleration, and then whether the human body has a falling tendency or not and the body part to be in contact with the ground when the human body has the falling tendency are judged. The microcontroller can specifically set corresponding acceleration threshold values and angular velocity threshold values for all parts of the body, and if the acceleration of a certain body part of a user exceeds the corresponding acceleration threshold value and the angular velocity exceeds the corresponding angular velocity threshold value, the human body can be judged to have a falling tendency, and the corresponding body part is the body part to be in contact with the ground.
Step 203, when the human body tends to fall down, the control subsystem sends a control signal to the inflator pump of the body part to be in contact with the ground, so that the inflator pump of the body part inflates the corresponding gas bearing body.
When the human body is judged to have the falling tendency in the step 202, the microcontroller controls the drive circuit to drive the inflator pump at the corresponding part to start working, the inflator pump can quickly respond, the coat and hat system is quickly filled in a short time, the protection is provided for the part of the human body where the human body falls, and the injury is reduced.
To reduce the possibility of the user falling down, in an alternative embodiment, the use method may further include:
firstly, the image or video data around the human body is collected in real time through the camera and transmitted to the control subsystem. The method specifically comprises the following steps: in step 201, while the plurality of IMU sensors collect IMU data in real time, the camera collects image or video data around the human body in real time, and transmits the image or video data to the microcontroller through the wireless communication module.
And then, the control subsystem analyzes the road section situation around the human body according to the image or video data, judges whether the road section situation is abnormal or not, and sends out a prompt if the road section situation is abnormal. The method specifically comprises the following steps: in step 202, the microcontroller receives image or video data sent by the camera through the wireless communication module, and analyzes the road condition around the human body according to the image or video data; when judging that the front part has obstacles and the front road surface has serious potholes and other abnormal conditions, the microcontroller sends the road section abnormal information to the voice prompt module and/or the light prompt module, and the voice prompt module and/or the light prompt module send a prompt to a user so that the user can decelerate in time and pay attention to surrounding conditions, thereby reducing the possibility of falling down.
In order to facilitate the user to move at night, the using method may further comprise:
firstly, the brightness sensor arranged on the coat and hat body collects the brightness of the surrounding of the human body in real time and transmits the brightness to the control subsystem. The method specifically comprises the following steps: in step 201, while the plurality of IMU sensors collect IMU data in real time, the brightness sensor detects brightness of light around a human body in real time, and transmits acceleration data to the microcontroller through the wireless communication module.
Then, the control subsystem compares the collected brightness of the human body periphery with a preset threshold value, and if the brightness of the human body periphery is lower than the preset threshold value, the lighting device on the coat and hat body is controlled to work. The method specifically comprises the following steps: in step 202, after receiving the luminance data transmitted by the luminance sensor through the wireless communication module, the microcontroller compares the luminance data with a preset luminance threshold; when the light brightness is lower than the preset light brightness threshold value, the microcontroller can drive the lighting device to work by controlling the corresponding driving circuit, so that a front road section is illuminated for a user, the night activity of the user is facilitated, and the possibility of falling of the user is reduced.
In order to ensure that the user can be timely found and cured when falling down, the using method can further comprise the following steps:
in step 201, while the plurality of IMU sensors collect IMU data in real time, the positioning sensor collects position information of a human body in real time, and transmits the position information to the microcontroller through the wireless communication module. When the microcontroller judges that the human body has a falling tendency, the human body position information collected by the positioning sensor is sent to the appointed intelligent terminal, so that the position of family, friends and the like of a falling user can be quickly locked, and the falling user can be timely treated.
In addition, if only one inflator pump is provided to inflate the gas carriers together, the passages between the inflator pump and the gas carriers corresponding to the respective portions of the ground are controlled to be opened simultaneously (i.e., the valves on the corresponding passages are opened simultaneously) when more than one body portion is grounded and the grounding sequence is different, so that the inflator pump can inflate the gas carriers corresponding to the respective portions of the ground simultaneously. On the other hand, the channel between the inflator and the gas carrier of the body part that lands first may also be controlled to open, and after a preset time (the preset time is short, for example, 0.5s, it is required to ensure that the gas carrier corresponding to the body part that lands later can also have sufficient time to inflate, and can also form effective protection for the body part that lands later), the channel between the inflator and the gas carrier of the body part that lands later is controlled to open, so that the inflator can inflate the gas carrier corresponding to the body part that lands first, and inflate the gas carrier corresponding to the body part that lands later after the preset time. When only one inflator pump is arranged, if the inflator pump inflates the gas carrying bodies corresponding to all parts of the land at the same time, the inflation efficiency may not be high enough; by arranging the sequential inflation sequence, the gas bearing bodies of all the landing parts can be inflated in time while the inflation efficiency is ensured, and all the landing body parts are protected.
According to the application method of the intelligent anti-falling coat and hat system, the states of all parts of the human body can be intelligently analyzed according to IMU data of all parts of the human body, the accuracy and the reliability of prejudgment are greatly improved, the inflation pump of the corresponding part can be timely controlled to work when a falling tendency exists, the coat and hat can be quickly filled in a short time, the integral protection is effectively provided for the falling part of the body, the protection level and the protection range are improved, and the injury after injury is reduced; and the condition of the surrounding road sections can be acquired by arranging the camera, and the user is timely reminded when the road sections are abnormal, so that the possibility that the user falls down is further reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An intelligent anti-falling coat and hat system based on an IMU is characterized by comprising an acquisition subsystem, a control subsystem and a protection subsystem which are connected with each other;
the acquisition subsystem comprises one or more cameras and a plurality of IMU sensors, and the one or more cameras are used for acquiring images or videos around a human body and transmitting the images or videos to the control subsystem; the IMU sensors are respectively arranged at different parts of the human body and are used for acquiring IMU data of each part of the human body in real time and transmitting the IMU data to the control subsystem;
the control subsystem is used for carrying out combined analysis on IMU data of each part of the human body, judging the current state of each part of the human body and controlling the protection subsystem according to the judgment result; meanwhile, images or videos around the human body are analyzed, the conditions of surrounding road sections are judged, and a prompt is sent out when the conditions are abnormal;
the protection subsystem includes pump and gas supporting body, works as when control subsystem judges that the human body is about to be in the state of falling down, sends control signal to the pump of the health position that is about to contact with ground, makes the pump of this position aerify for corresponding gas supporting body.
2. The IMU-based intelligent fall-resistant hatrack system of claim 1, wherein the IMU sensors comprise three single-axis accelerometers and three single-axis gyroscopes, the IMU data comprising acceleration and angular velocity, respectively;
the three single-axis accelerometers are used for detecting acceleration signals of three independent axes of corresponding parts of a human body in real time, and the three single-axis gyroscopes are used for detecting angular velocity signals of three independent axes of corresponding parts of the human body in real time.
3. The IMU-based intelligent drop-resistant headgear system according to claim 2, wherein the control subsystem comprises an interconnected microcontroller and drive circuitry, the drive circuitry being connected to an inflator in the protection subsystem;
the microcontroller is used for calculating the postures of all parts of the human body according to the angular velocity and the acceleration, and judging whether the human body has a falling tendency or not and the body part which is to be contacted with the ground when the human body has the falling tendency;
when the human body is judged to have the falling tendency, the microcontroller controls the driving circuit to drive the inflator pump at the corresponding part to start working.
4. The IMU-based intelligent fall-resistant hatrack system of claim 1, wherein the protection subsystem further comprises a voice prompt module and/or a light prompt module;
when the situation of the surrounding road sections is abnormal, the voice prompt module is used for sending voice prompt to a user using the intelligent anti-falling clothes and hat system, and the light prompt module is used for sending light early warning to the user using the intelligent anti-falling clothes and hat system.
5. The IMU-based intelligent fall-resistant apparel system of claim 1 wherein the capture subsystem further comprises a wireless communication module connected to the plurality of IMU sensors and the camera, respectively, for transmitting IMU data captured by the plurality of IMU sensors and image or video data captured by the camera to the control subsystem; the wireless communication module is used for data transmission through a Bluetooth, a local area network, a ZigBee network or a mesh network.
6. The IMU-based intelligent anti-drop coat and hat system according to claim 1, wherein the collection subsystem further comprises a brightness sensor disposed on the coat and hat body for collecting brightness of light around the human body in real time and transmitting to the control subsystem;
the protection subsystem further comprises lighting equipment arranged on the coat and hat body, and when the fact that the brightness of light around a human body is lower than a preset threshold value is detected, the control subsystem controls the lighting equipment to work.
7. The IMU-based intelligent crash-proof coat and hat system of any of claims 1-6, wherein the control subsystem and the protection subsystem are both disposed on a coat and hat body, the coat and hat body comprising a coat, pants, and hat; the control subsystem and the protection subsystem are in wired connection through buckles among the coat, the trousers and the hat.
8. A method of using an IMU-based intelligent drop-resistant hat and coat system, the IMU-based intelligent drop-resistant hat and coat system of any one of claims 1 to 7, the method comprising:
the IMU data of each part of the human body are collected in real time through a plurality of IMU sensors respectively arranged at different parts of the human body and are transmitted to the control subsystem;
the control subsystem jointly analyzes the current states of all parts of the human body according to the IMU data, and judges whether the human body has a falling tendency or not and the body part which is about to contact with the ground when the human body has the falling tendency;
when the human body tends to fall down, the control subsystem sends a control signal to the inflator pump of the body part to be in contact with the ground, so that the inflator pump of the body part inflates the corresponding gas bearing body.
9. The method of using an IMU-based intelligent fall-resistant hatrack system of claim 8, further comprising:
the camera collects images or video data around the human body in real time and transmits the images or video data to the control subsystem; and the control subsystem analyzes the road section situation around the human body according to the image or video data, judges whether the road section situation is abnormal or not, and sends out a prompt if the road section situation is abnormal.
10. The method of using an IMU-based intelligent fall-resistant hatrack system of claim 8, further comprising:
the brightness sensor arranged on the coat and hat body is used for collecting the brightness of the surrounding of a human body in real time and transmitting the brightness to the control subsystem; the control subsystem compares the collected brightness of the human body periphery with a preset threshold value, and if the brightness of the human body periphery is lower than the preset threshold value, the lighting equipment on the coat and hat body is controlled to work.
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