CN102117533A - Human falling detection protection and alarming device - Google Patents

Abstract

The invention discloses a human falling detection protection and alarming device, which comprises a falling detection part, a falling detection information transmission part, a falling position detection part and a protective airbag, wherein the falling detection part is sequentially connected with the falling detection information transmission part, the falling position detection part and the protective airbag; and the falling detection part detects a human posture, judges whether a human body falls or not, acquires the geographic position of human falling by the falling position detection part when the human body is judged to fall, controls the falling detection information transmission part to transmit falling alarming information and the geographic position of the human falling to a guardian or a guarding center, and simultaneously controls the inflation of the protective airbag. The human falling detection protection and alarming device has the advantages of positioning the detected falling, giving an alarm at the same time of transmitting the falling information and the position of the falling, and protecting the falling.

Description

Protection of human body fall detection and warning device

Technical field

The present invention relates to protection of human body fall detection and warning device, belong to technical field of medical detection.

Background technology

Enter 21 century, aging population will be more for appearing.Along with exchanging of expanding economy and culture, the flowability of population is quickened greatly, makes a lot of children not the old man not at one's side.Thereby the elderly gets healthy and the medical treatment and nursing problem becomes a significant problem gradually, and most the elderlys' health status can't in time be monitored.When meeting accident,, even can threaten life security if the elderly can not get instant relief.And fall is a kind of unscheduled event that generation is often arranged in the elderly.Falling of old man can cause a lot of safety problems, and 5%～15% fall causes brain injury, soft tissue injury, fracture and dislocation etc., and wherein the most serious is Hip Fracture.

Existing fall detection technology can be divided three classes: based on the fall detection system of video, based on the fall detection system of acoustics, based on the fall detection system of Wearable sensor.

Fall detection system based on video is in certain zone camera to be installed, and takes the picture of physical activity.By image process method, detect the generation of whether falling;

Based on the fall detection system of acoustics is that sound signal when falling by analysis detects;

Based on the fall detection system of Wearable sensor, refer to dress miniature class and dress equipment, as clothes, cap, jewellery etc., the activity of the human body of having a try.

Fall detection system based on video is subjected to region limits; Fall detection system accuracy rate based on acoustics has much room for improvement relatively.Existing fall detection system based on the Wearable sensor, as Int.Cl CN 2168586Y, Int.Cl CN 2249072Y is the detection of adopting mercury cut-off to fall substantially; Int.Cl CN 201127606Y adopts and only carries out fall detection by the acceleration transducer mode.Its shortcoming only can detect falling, and can not protect the human body of falling that takes place.Most of traditional fall detection mode does not have the remote radio communication function, and can not position the position that takes place of falling.

Summary of the invention

The objective of the invention is in order to overcome the deficiencies in the prior art, a kind of human body fall detection protection and warning device are provided.

Human body fall detection protection and warning device comprise fall detection part, fall detection partial message transmission, the position detection part and protect air bag of falling;

The fall detection part connects the fall detection partial message transmission successively, fall position detection part and protection air bag; The fall detection part detects human body attitude; judge whether human body falls; when judging that human body is fallen; the fall detection part is obtained the geographic position that human body is fallen and taken place by the position detection part of falling; fall detection is partly controlled the fall detection partial message transmission and is sent the geographic position that fall warning message and human body are fallen to guardian or monitoring center; simultaneously, fall detection is partly controlled the protection airbag aeration.

The invention has the advantages that:

(1) detected falling positioned;

(2) information of will falling is reported to the police simultaneously with the position that takes place of falling;

(3) can protect falling of generation.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a fall detection part-structure synoptic diagram of the present invention;

Fig. 3 is that acceleration sensor of the present invention and gyroscope are worn synoptic diagram;

Fig. 4 is a protection air bag synoptic diagram of the present invention;

Fig. 5 is that human body is fallen and begun air bag work synoptic diagram in the process of falling down to the ground.

Among the figure:

The 1-fall detection part 2-fall detection partial message transmission 3-position detection part of falling

4-protection air bag 5-microcontroller 6-acceleration transducer

The 7-gyroscope

Embodiment

The present invention is described in further detail below in conjunction with drawings and Examples.

The present invention is protection of a kind of human body fall detection and warning device, as shown in Figure 1, comprises fall detection part 1, fall detection partial message transmission 2, fall position detection part 3 and protection air bag 4.Fall detection part 1 connects fall detection partial message transmission 2 successively, fall position detection part 3 and protection air bag 4.

1 pair of human body attitude of fall detection part detects; judge whether human body falls; when judging that human body is fallen; the position detection part 3 of falling obtains the geographic position that human body is fallen and taken place, and helps guardian or monitoring center that children under guardianship's the position of falling is positioned, and fall detection partial message transmission 2 sends the warning message of falling to guardian or monitoring center; simultaneously; protection air bag 4 inflate rapidly, and human body hip, shoulder and head are protected in the impact when reducing to fall down to the ground.

As shown in Figure 2, fall detection part 1 comprises microcontroller 5, acceleration transducer 6 and gyroscope 7.Acceleration transducer 6 is used for the slotted line acceleration signal, gyroscope 7 is used for the measured angular rate signal, acceleration transducer 6 and gyroscope 7 are worn on the human body waist, as shown in Figure 3, the MSP430F1611 of the MSP430 series monolithic of 16 super low-power consumptions of microcontroller 5 employing TI, the signal of 5 pairs of acceleration transducers 6 of microcontroller and gyroscope 7 is gathered, and obtains signal vector mould SVM and motion angular velocity (being recorded by gyroscope 7).

$\mathrm{SVM}=\sqrt{{a_x}^2+{a_{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HDA0000049769100000011.png"\; state="\{\{state\}\}">y</figure-callout>}}}^2+{a_{\mathrm{<figure-callout\; id="2"\; label="z"\; filenames="HDA0000049769100000011.png"\; state="\{\{state\}\}">z</figure-callout>}}}^2}$

Wherein: a _xa _ya _zRepresent the linear acceleration size on three directions of x y z respectively, wherein the z direction is a vertical direction, the y direction be before and after the human body to, the x direction is a left and right directions.

The threshold value of SVM and motion angular velocity when setting human body safety, the SVM threshold value is 1.8g-2.2g among the present invention, motion angular velocity threshold value is 0.5rad/s-0.55rad/s, and when SVM and human motion angular velocity surpassed setting threshold, microcontroller 5 judged that human bodies fall.Microcontroller 5 control protection air bags 4 fast aeration, protection air bag 4 back ofs the body are placed on the human body back part, and its shape is as shown in Figure 4.Fall position detection part 3 adopts the GPS modules that the position of falling is positioned, and microcontroller 5 is exported in the human body geographic position that takes place of falling, and makes things convenient for guardian or monitoring center that children under guardianship's the position of falling is positioned.Microcontroller 5 control fall detection information transmission portions 2 send the geographic position that fall warning message and human body are fallen to guardian or monitoring center, and fall detection information transmission portion 2 adopts gsm modules to carry out remote radio communication.

As shown in Figure 5, when human body is fallen, and when having tilted to certain angle, as Fig. 5 (b), the variation of the SVM eigenwert of the acceleration that causes thus and the variation of angular velocity can be judged the generation of falling.Protect air bag 4 beginning inflation rapidly under microcontroller 5 controls of fall detection part 1 this moment.Shown in Fig. 5 (c), Fig. 5 (d), protection air bag 4 launches in human body is fallen process gradually, expands rapidly.Shown in figure (e), before human body fell down to the ground, protection air bag 4 launched fully, is that hip, shoulder and the head of human body is protected when falling down to the ground.After human body falls down to the ground, gas is slowly discharged.

Claims (6)

1. human body fall detection protection and warning device is characterized in that, comprise fall detection part, fall detection partial message transmission, the position detection part and protect air bag of falling;

The fall detection part connects the fall detection partial message transmission successively, fall position detection part and protection air bag; The fall detection part detects human body attitude; judge whether human body falls; when judging that human body is fallen; the fall detection part is obtained the geographic position that human body is fallen and taken place by the position detection part of falling; fall detection is partly controlled the fall detection partial message transmission and is sent the geographic position that fall warning message and human body are fallen to guardian or monitoring center; simultaneously, fall detection is partly controlled the protection airbag aeration.

2. human body fall detection protection according to claim 1 and warning device is characterized in that described fall detection partly comprises microcontroller, acceleration transducer and gyroscope; Acceleration transducer is used for the slotted line acceleration signal, gyroscope is used for the measured angular rate signal, acceleration transducer and gyroscope are worn on the human body waist, and microcontroller is gathered acceleration transducer and gyrostatic signal, obtain signal vector mould SVM and motion angular velocity;

$\mathrm{SVM}=\sqrt{{a_x}^2+{a_y}^2+{a_z}^2}$

Wherein: a _xa _ya _zRepresent the linear acceleration size on three directions of x y z respectively, wherein the z direction is a vertical direction, the y direction be before and after the human body to, the x direction is a left and right directions; The threshold value of SVM and motion angular velocity when setting human body safety, when SVM and human motion angular velocity surpassed setting threshold, microcontroller judged that human body falls, microprocessor controls is protected airbag aeration.

3. human body fall detection protection according to claim 2 and warning device is characterized in that, the MSP430F1611 of the MSP430 series monolithic of 16 super low-power consumptions of described microcontroller employing TI.

4. human body fall detection protection according to claim 2 and warning device is characterized in that described SVM threshold value is 1.8g-2.2g, and motion angular velocity threshold value is 0.5rad/s-0.55rad/s.

5. human body fall detection protection according to claim 1 and 2 and warning device; it is characterized in that; the described position detection part of falling adopts the GPS module that the position of falling is positioned, and the microcontroller of fall detection part is exported in the fall geographic position that takes place of human body.

6. human body fall detection according to claim 1 and 2 protection and warning device is characterized in that, described fall detection information transmission portion sends information to guardian or monitoring center, adopts gsm module to carry out remote radio communication.

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