CN208335426U - A kind of Falls in Old People detection device based on MPU6050 - Google Patents

Abstract

The Falls in Old People detection device based on MPU6050 that the utility model discloses a kind of mainly solves the problems, such as that the device sensitivity existing in the prior art for detecting Falls Among Old People is low.The device includes shell, it is mounted on the intracorporal controller of shell, it is mounted in shell and connect with controller and be used to monitor the MPU6050 sensor module of Falls Among Old People, it is mounted in shell and alarm module connected to the controller, it is mounted on shell and key switch connected to the controller, the button cell for being mounted in shell and powering for controller, it is provided with case inside and the rear cover for being convenient for changing button cell, and at least two are vertically arranged in case inside and constitute with shell for the frame across waistband gap.Through the above scheme, the utility model has achieved the purpose that detection accuracy is high, has very high practical value and promotional value.

Description

A kind of Falls in Old People detection device based on MPU6050

Technical field

The utility model relates to alarm field more particularly to a kind of Falls in Old People detection devices based on MPU6050.

Background technique

With aging of population and extend retirement, in more and more solitary families of old man, old man in solitary family increasingly with The growth at age the phenomenon that being easy to appear tumble, Falls Among Old People alarm is protected on domestic and international market at present due in evil case Device is mainly hand, and disadvantage is it is clear that when falling, it is more likely that so that old man is lost consciousness, at this time old man's root Originally it cannot complete to succour by hand warning device.Domestic and foreign scholars have proposed a variety of automation tumble situation detection sides Method can substantially be divided into image fall detection method, sound fall detection method, Multi-sensor Fusion fall detection method, wherein image Fall detection method can only play a role in camera in collected region, and expensive, sound fall detection method It is low that there are accuracy, and the variation of audio when only by Falls Among Old People sense to detect tumble situation be to be grossly inaccurate more Device fusion fall detection method is relatively high relative to image fall detection method, sound fall detection method accuracy, but its result Rate of false alarm can similarly threaten the life of old man in Falls Among Old People, therefore design a detection sensitivity 15% or so Height detection device is necessary.

Utility model content

The Falls in Old People detection device based on MPU6050 that the purpose of this utility model is to provide a kind of, mainly solves The low problem of device sensitivity existing in the prior art for detecting Falls Among Old People.

To achieve the goals above, the technical solution adopted in the utility model is as follows:

A kind of Falls in Old People detection device based on MPU6050, including shell are mounted on the intracorporal controller of shell, peace It is connect in shell and with controller and be used to monitor the MPU6050 sensor module of Falls Among Old People, is mounted in shell simultaneously Alarm module connected to the controller, is mounted on shell and key switch connected to the controller, is mounted in shell and is The button cell of controller power supply is provided with case inside and the rear cover for being convenient for changing button cell, and at least two It is vertically arranged in case inside and constitutes with shell for the frame across waistband gap.

Further, the MPU6050 sensor module includes chip MPU6050, one end with chip MPU6050 the 8th Pin connection, another resistance R49 for terminating VCC, one end is connect with No. 8 pin of chip MPU6050 after parallel connection, the other end is grounded Capacitor C73 and capacitor C74, one end connect with No. 10 pin of chip MPU6050, the capacitor C77 of other end ground connection, one end with The capacitor C76 that chip MPU6050 No. 20 pin connection, the other end are grounded, one end is connect with the 12nd pin of chip MPU6050 Resistance R45, wherein 13 pin of chip MPU6050 is connect with the 8th pin, chip MPU6050 the 1st, 9,11,18 pins ground connection, Chip MPU6050 the 23rd, 24 pins are connect with controller simultaneously.

Further, the controller selects STM32F103C8T6 single-chip microcontroller, wherein the 23rd pin of chip MPU6050 with The connection of the 33rd pin of STM32F103C8T6 single-chip microcontroller, the 24th pin of chip MPU6050 and STM32F103C8T6 single-chip microcontroller the 32nd Pin connection.

Further, the alarm module includes buzzer LS1, three poles that collector is connect with mono- pin of buzzer LS1 Pipe Q1, the resistance R2 that one end is connected with triode Q1 base stage, the other end and the 25th pin of STM32F103C8T6 single-chip microcontroller connect, Wherein another pin of buzzer LS1 connects 5V power supply, triode Q1 emitter ground connection.

Specifically, the VCC is 3.3V.

Compared with prior art, the utility model has the following beneficial effects:

(1) the utility model is arranged by the way that MPU6050 sensor module to be mounted in shell, and in the inside of shell Frame will test the waist that device is mounted on human body to pass through waistband, can be very good to carry out the various bending amplitudes of human body Detection, stability is higher, and sensitivity is higher, and the alarm module being arranged can issue alarm to obtain relief, safety It is higher, while the key switch being arranged can close alarm, it is more reasonable to design.

(2) the utility model is that global the first is integrated with 3 by using digital gyroscope MPU6050, chip MPU6050 6 axis motion sensors of axis MEMS gyroscope, 3 axis mems accelerometers, and digital moving processor DMP is had, it can subtract The load of few complicated data fusion, induction posture etc., can accurately judge according to the deflection of old man's body and acceleration Whether teacher falls, and when being judged as tumble, after controller receives acquisition information, triggering alarm module issues alarm, to mention Show the crowd of surrounding, so that the old man to fall is not in safety problem, detection accuracy is high and has calling function.

(3) the utility model controller uses STM32F103C8T6 single-chip microcontroller, using in ARM-Cortex M3 32 bit processor of core has outstanding processing speed and addressability, a variety of RTOS can be supported, at high rate bioreactor more Business is apparent advantage.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the postrotational structural schematic diagram of Fig. 1.

Fig. 3 is the structural block diagram of the utility model.

Fig. 4 is the circuit diagram of the utility model MPU6050 sensor module.

Fig. 5 is the circuit diagram of the utility model alarm module.

In above-mentioned attached drawing, the corresponding component names of appended drawing reference are as follows:

1- shell, 2- controller, 3-MPU6050 sensor module, 4- alarm module, 5- key switch, 6- button cell, 7- rear cover, 8- frame.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and examples, and the embodiments of the present invention includes But it is not limited to the following example.

Embodiment

A kind of Falls in Old People detection device based on MPU6050 as shown in Figures 1 to 5, before use, be contemplated that by Detection device installs that position of body, since hand and upper limb moving range are larger, if will test device is mounted on hand In portion or upper limb, detection device wrong report will cause, comprehensively considering, which will test device, is mounted on waist, because of waist activity model Enclose smaller with frequency, and the gap that the utility model detection device frame 8 and shell 1 are constituted can satisfy existing various moneys The waistband of formula can pass through the gap that frame 8 and shell 1 are constituted by velcro or rope, then tie up to when not having waistband Loins, this detection device suitable size, therefore be worn on loins and will not cause discomfort to human body.

Under normal condition, people has 6 kinds of basic status of action, is " walking " respectively, " race ", " jump ", " upper/slope of going downstairs ", " sits Under ", " lying down " measure daily behavior total acceleration most value and fall and always add then by simulating daily behavioral experiment on a large scale Speed is most worth respectively as shown in table 1 and table 2,

1 daily behavior total acceleration of table is most worth

2 tumble total acceleration of table is most worth

Then according in table 2 minimum value and maximum value be arranged in the controller human body tumble acceleration range, work as people When body is fallen, when MPU6050 sensor collects the acceleration of human body, do not set in controller 2 when the acceleration detected When in range, controller 2 does not trigger alarm module 4, when the acceleration detected is in the range of controller 2 is set, control Device 2 triggers alarm module 4, and then buzzer issues alarm, when the old man of tumble loses consciousness, the alarm of buzzer sending Sound can be propagated outward,, can in the case where capable of still saving oneself when the old man of tumble does not lose consciousness to have the function that emergency To turn off buzzer automatically by pressing the button switch 5, the utility model it is opposite with the prior art can accurate detection to falling State, and can call for help in time, to overcome the problem that detection accuracy is not high in the prior art.

Wherein controller is using STM32F103C8T6 single-chip microcontroller, the utility model and to change to its structure, function Into, while being well known to those skilled in the art using conventional key switch, working principle and circuit connecting relation, therefore The inside for repeating no more in present utility model application file, and mentioning in the utility model refers to that detection device is fitted in waist The side of band.

Above-described embodiment is only the preferred embodiment of the utility model, is not intended to limit the scope of the present invention, In every case the design principle of the utility model is used, and carries out the non-creative variation worked and made on this basis, it should all Belong within the protection scope of the utility model.

Claims (5)

1. a kind of Falls in Old People detection device based on MPU6050, which is characterized in that including shell (1), be mounted on shell (1) controller (2) in is mounted in shell (1) and connect with controller (2) and be used to monitor the MPU6050 of Falls Among Old People Sensor module (3) is mounted on the alarm module (4) connecting in shell (1) and with controller (2), is mounted on shell (1) simultaneously The key switch (5) connecting with controller (2) is mounted in shell (1) and is the button cell (6) of controller (2) power supply, opens It is located at the rear cover (7) on the inside of shell (1) and for being convenient for changing button cell (6), and at least two are vertically arranged in shell (1) it constitutes on the inside of and with shell (1) for the frame (8) across waistband gap.

2. a kind of Falls in Old People detection device based on MPU6050 according to claim 1, which is characterized in that described MPU6050 sensor module (3) includes chip MPU6050, and one end connect with No. 8 pin of chip MPU6050, another termination The resistance R49 of VCC, the capacitor C73 and capacitor that one end is connect with No. 8 pin of chip MPU6050 after parallel connection, the other end is grounded C74, the capacitor C77 that one end is connect with No. 10 pin of chip MPU6050, the other end is grounded, one end and chip MPU6050 the 20th The connection of number pin, other end ground connection capacitor C76, the resistance R45 that one end is connect with the 12nd pin of chip MPU6050, wherein core 13 pin of piece MPU6050 is connect with the 8th pin, chip MPU6050 the 1st, 9,11,18 pins ground connection, while chip MPU6050 23rd, 24 pins are connect with controller (2).

3. a kind of Falls in Old People detection device based on MPU6050 according to claim 2, which is characterized in that described Controller (2) selects STM32F103C8T6 single-chip microcontroller, wherein the 23rd pin of chip MPU6050 and STM32F103C8T6 monolithic The connection of the 33rd pin of machine, the 24th pin of chip MPU6050 are connect with the 32nd pin of STM32F103C8T6 single-chip microcontroller.

4. a kind of Falls in Old People detection device based on MPU6050 according to claim 3, which is characterized in that described Alarm module (4) includes buzzer LS1, and the triode Q1 that collector is connect with mono- pin of buzzer LS1, one end is with triode Q1 The resistance R2 that base stage connection, the other end and the 25th pin of STM32F103C8T6 single-chip microcontroller connect, wherein buzzer LS1 is another draws Foot connects 5V power supply, triode Q1 emitter ground connection.

5. a kind of Falls in Old People detection device based on MPU6050 according to claim 4, which is characterized in that described VCC is 3.3V.