CN102972905B - Tumble alarming shoes - Google Patents
Tumble alarming shoes Download PDFInfo
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- CN102972905B CN102972905B CN201210481361.3A CN201210481361A CN102972905B CN 102972905 B CN102972905 B CN 102972905B CN 201210481361 A CN201210481361 A CN 201210481361A CN 102972905 B CN102972905 B CN 102972905B
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- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000013501 data transformation Methods 0.000 description 2
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- 208000010040 Sprains and Strains Diseases 0.000 description 1
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Abstract
The invention discloses a pair of tumble alarming shoes. The structure of each of the tumble alarming shoes comprises a U1 main control chip, a U3 sensor module, a buzzer, three function buttons and a U2 Bluetooth chip, wherein the U1 main control chip and the U3 sensor module are connected by an I2C1 port communication way; the U1 main control chip and the U2 Bluetooth chip are connected by a serial port USART1 communication way; one ends of the three function buttons are connected with the U1 main control chip by a pull-up resistor; the other ends of the three function buttons are connected with the ground; one is a reset button; and the buzzer is connected with a 0 ohm resistor in series by a sink current way to be connected with the U1 main control chip. The tumble alarming shoes has the advantages as follows: by the adjustment setting of the three buttons, through data sent by an I2C1 receiving sensor, the data is converted into an angle relation, and if a user tumbles is judged. The tumble buzzer alarms by sounding, and sends commands to the Bluetooth chip by a universal asynchronous receiver/transmitter (UART) series port, so as to automatically dial by a cellphone. By gathering the analysis judgment of triaxial data of the sensor at real time, automatic Bluetooth dialing alarming is achieved when the user tumbles.
Description
Technical field
What the present invention relates to is that one falls down alarm footwear, can monitor and falls down and realize automatic bluetooth dialing alarm, belong to electronic technology field.
Background technology
Along with the development of economic society, Empty nest elderly gets more and more, and old man often there will be when meeting accident and falling down cannot self-situation of succouring.Now just need a can Real-Time Monitoring geriatric state the product of automatic alarm.
Siren of falling down on market generally only has waistband wrist strap etc., and this series products has the trouble of wearing, and its situation about detecting complicated easily appearance misses alarm.Its dialing uses chip for cell phone, and cost is higher, brings the defect that price is higher.In shoes, general shoes only have the function of anti-skidding anti-sprain, cannot carry out real-time monitoring and auto dialing alarm.
Summary of the invention
What the present invention proposed is that one falls down alarm footwear, its object is intended to the deficiency overcoming existing product, the present invention by shoes with fall down siren and combine, each components and parts are connected by the wiring board of self, and realize carrying out real-time monitoring to wearer by self-contained program, and the mobile phone realizing automatic bluetooth connection wearer when it is fallen down and cannot self-ly succour carries out dialing alarm.
Technical solution of the present invention: it is characterized in that structure comprises U1 main control chip STM32F103-48, U3 sensor MMA8452Q module, buzzer, 3 function paster buttons and U2 Bluetooth chip MMBC05-0B, wherein U1 main control chip STM32F103-48 is connected with U3 sensor MMA8452Q module I2C1 mouth communication modes; U1 main control chip STM32F103-48 is connected with U2 Bluetooth chip MMBC05-0B serial ports USART1 communication modes; One end of 3 function paster buttons is connected with the pin (33,32,28) of U1 main control chip STM32F103-48 by pull-up resistor, the other end ground connection of 3 function paster buttons; Reset key S2, a ground connection after the electric capacity of a 0.1uf in parallel, the other end is connected with the RESET pin of U1 main control chip STM32F103-48 by upper resistance; Buzzer to be connected 0 Europe resistance access U1 main control chip STM32F103-48 to fill with current system.
This product is regulated by three buttons and arranges, and through the data that I2C1 receiving sensor transmits, by angled for data transformations relation, differentiates whether user falls down.When judging to fall down, buzzer sounding alarm, and send order by UART serial ports to bluetooth, make it pass through cell phone automatic dialing.
Beneficial effect of the present invention: regulated by three function paster buttons and arrange, through the data that I2C1 receiving sensor transmits, by angled for data transformations relation, differentiates whether user falls down.When judging to fall down, buzzer sounding alarm, and send order by UART serial ports to bluetooth, make it pass through cell phone automatic dialing.The present invention by three number of axle certificates of Real-time Collection sensor, and by judging the analysis of data, realizes falling down carrying out automatic bluetooth dialing alarm.
Accompanying drawing explanation
Fig. 1 is the wiring diagram such as U1 main control chip STM32F103-48 and button, buzzer, reset circuit.
Fig. 2 is U2 Bluetooth chip MMBC05-0B wiring diagram.
Fig. 3 is U3 sensor assembly MMA8452Q wiring diagram.
Fig. 4 is power module circuitry figure.
Fig. 5 is wiring diagram of the present invention.
Detailed description of the invention
Contrast accompanying drawing, its structure comprises U1 main control chip STM32F103-48, U3 sensor MMA8452Q module, buzzer, (wherein paster button S5 is end replay key to 3 function paster buttons, paster button S4, S6 are telephone number options buttons, S2 is reset key) and U2 Bluetooth chip MMBC05-0B, wherein U1 main control chip STM32F103-48 is connected with U3 sensor MMA8452Q module I2C1 mouth communication modes; U1 main control chip STM32F103-48 is connected with U2 Bluetooth chip MMBC05-0B serial ports USART1 communication modes; One end of 3 function paster buttons is connected with U1 main control chip STM32F103-48 by pull-up resistor, the other end ground connection of 3 function buttons; A ground connection after the electric capacity of a wherein reset key S2 0.1uf in parallel, the other end of reset key S2 is connected with the RESET pin of U1 main control chip STM32F103-48 by upper resistance; Buzzer to be connected 0 Europe resistance access U1 main control chip STM32F103-48 to fill with current system.
Described U1 main control chip STM32F103-48 (as Fig. 1) uses I2C communication modes with U3 sensor assembly MMA8452Q(as Fig. 3) communicate, obtain three 8 A/D values, actual accekeration is converted to according to the acceleration range of setting, in original state, with the vertical downward direction of footwear be X-axis, horizontal line is Y-axis, vertical XY plane sets up coordinate system for Z axis, when shoes have inclination time, reference axis tilts thereupon, then gravity vertical and X-axis can produce an angle a.Just be equivalent to the change in location of acceleration of gravity in reference axis, three component accekerations in X, Y, Z axis can be resolved into sciagraphy.According to the accekeration of X, Y, Z axis and the value of acceleration of gravity, calculate the accekeration/acceleration of gravity of the angle a=Arccos(X axle of footwear and vertical direction X-axis).Detailed process is: be placed in variable MMA8452q_x by the A/D value of the X-direction obtained, and its variable MMA8452q_x number range 0 ~ 255, if variable MMA8452q_x is <128, is positioned at X-axis positive direction,
?cos value MMA8452q_x_cos=(float) MMA8452q_x/128*2 of the angle a of its X-axis and gravity vertical; If variable MMA8452q_x>=128, be positioned at X-axis negative direction, MMA8452q_x=~ MMA8452q_x+1, MMA8452q_x_cos=(float) MMA8452q_x/128*2.Namely judge whether user falls down by the change (MMA8452q_x_cos is worth changing) of the angle beta of shoes bottom surface and level ground, and instantaneous acceleration change time is on foot excluded; When to be greater than 60 degree be MMA8452q_x_cos<0.5 to angle beta; within 7 ~ 8 seconds, be judged as that shoes posture is unusual if continue, now U1 main control chip STM32F103-48 serial ports USART1 passes through AT instruction to U2 Bluetooth chip MMBC05-0B(as Fig. 2) Sending dialled number instruction; The mobile phone dialing phone of U2 Bluetooth chip MMBC05-0B control connection.
contrast accompanying drawing 5:
The clock signal SCL end of U3 sensor MMA8452Q module (Fig. 3) and U1 main control chip STM32F103-48(Fig. 1) clock signal SCL(PB10) hold and connect;
The data-signal SDA of U3 sensor MMA8452Q module holds and U1 main control chip STM32F103-48(Fig. 1) data-signal SDA(PB11) hold and connect;
By SCL clock signal and SDA data-signal, U3 sensor MMA8452Q module is to U1 main control chip STM32F103-48 transmission acceleration A/D;
Rs 232 serial interface signal TX and U1 main control chip STM32F103-48(Fig. 1 of U2 Bluetooth chip MMBC05-0B (Fig. 2)) serial ports USART1 signal end RX(PA9) be connected;
Rs 232 serial interface signal RX and U1 main control chip STM32F103-48 (Fig. 1) the serial ports USART1 signal end TX(PA10 of U2 Bluetooth chip MMBC05-0B (Fig. 2)) be connected.
By the TX port of USART1, U1 main control chip STM32F103-48 sends AT instruction to U2 Bluetooth chip MMBC05-0B, and by the RX port of USART1, U1 main control chip STM32F103-48 reads U2 Bluetooth chip MMBC05-0B feedack;
VCC port in power module (Fig. 4) is connected with the VCC port in U1 main control chip STM32F103-48 (Fig. 1), U2 Bluetooth chip MMBC05-0B (Fig. 2), U3 sensor MMA8452Q module (Fig. 3), is its power supply.
Contrast accompanying drawing 1:
Electric capacity C11=0.1uF, electric capacity C12=0.1uF, electric capacity C14=0.1uF are filter capacitor, and two ends connect positive source negative pole and are connected with U1 main control chip STM32F103-48 power positive cathode end respectively, and effect is power filter;
Electric capacity C3=0.1uF, paster button S2(and reset key), resistance R3=10k and power supply constitute reset circuit (low level reset).Resistance R3 mono-termination positive source, another termination RESET, the electric capacity C3 of resistance R3 and reset key S2, the other end of electric capacity C3 is connected with the other end of button and ground connection.Under normal circumstances, electric capacity C3 is equivalent to open circuit RESET and holds level for high, resets when pressing paster button S2 level step-down.Effect is system reset.
U1 main control chip STM32F103-48(Fig. 1) I/O mouth PA12 connect paster button S4 by pull-up resistor R=10k; I/O mouth PA11 connects paster button S5 by pull-up resistor R=10k; I/O mouth PB15 connects paster button S6 by pull-up resistor R=10k.The effect of paster button S4, S5, S6 arranges system, and paster button S4 is telephone number options button, and paster button S6 is telephone number options button, and paster button S5 is end replay key.
Contrast Fig. 2:
Our department is divided into U2 Bluetooth chip MMBC05-0B, and VBAT, 3V3, POWER connect 3.3V positive source, and 22,35,57 ~ 59,61 ~ No. 65 pins of U2 Bluetooth chip MMBC05-0B are GND earth terminal; Electric capacity CL1, CL2 one end earth, the other end of CL2 another termination signal antenna RF and inductance L L1, inductance L L1 and the other end earth of CL1, wherein electric capacity CL1=100pF, CL2=100pF, inductance L L1=10uH play signal filtering Anti-Jamming; Rs 232 serial interface signal TX and U1 main control chip STM32F103-48(Fig. 1 of U2 Bluetooth chip MMBC05-0B) serial ports USART1 signal end RX(PA9) be connected; Rs 232 serial interface signal RX and U1 main control chip STM32F103-48 (Fig. 1) the serial ports USART1 signal end TX(PA10 of U2 Bluetooth chip MMBC05-0B) be connected.
The effect of this part: U1 main control chip STM32F103-48 carries out auto dialing by sending the connection of AT instruction control U2 Bluetooth chip MMBC05-0B and Bluetooth of mobile phone, disconnection, dialing and then the mobile phone with Bluetooth control wearer.
Contrast Fig. 3:
Our department is divided into U3 sensor MMA8452Q module.Electric capacity C32=100pF, C31=100pF, C33=100pF are filter action, C32 mono-termination positive source and VDDIO, another termination power cathode; C33 mono-termination BYP, other end ground connection; Electric capacity C32 mono-termination positive source and VDD, another termination power cathode of electric capacity C32; The output of I2C interface is open-drain or open collector, so resistance R32=1K, R31=1K are the pull-up resistor of I2C; R32 one end is connected with VCC, the other end connection module I2C clock bus SCL of R32; Resistance R33 one end is connected with VCC, the other end connection module I2C data/address bus SDA of resistance R33, and module I 2C address of devices selects port SA0 ground connection.
U3 module and U1 main control chip STM32F103-48(Fig. 1) be connected by I2C communication modes, the clock signal SCL of module end and U1 main control chip STM32F103-48(Fig. 1) clock signal SCL(PB10) hold and connect; The data-signal SDA of U3 sensor MMA8452Q module holds and U1 main control chip STM32F103-48(Fig. 1) data-signal SDA(PB11) hold and connect.
The effect of this part: accelerometer is fixed on shoes, user wears and puts on this shoes.During work, accelerometer will move with pin; U1 main control chip STM32F103-48 is read and write U3 sensor MMA8452Q module by I2C communication modes, and U3 sensor MMA8452Q module returns with 8 A/D values of the XYZ positive direction acceleration of the coordinate system that the vertical downward direction of footwear is X-axis, horizontal line is Y-axis, vertical XY plane is set up for Z axis to U1 main control chip STM32F103-48.
Contrast accompanying drawing 4:
Power supply is 3.7V lithium battery, and No. 1, No. 2 pin negative poles connecting POWER connect; POWER1 pin connects Header toggle switch 1; Header toggle switch 2 connects buck diode D21 one end; The other end of buck diode D21 receives VCC, L1 and C21=4.7uF; The other end of L1 receives VCC33A, another termination GND of electric capacity C12 and another termination GNDA of L2, L2.Inductance L 1, L2 have Anti-Jamming, electric capacity C21 plays power supply filter action.
This part acts on: for system provides stable power supply.
Concrete operation step:
1) stir header3, buzzer sends prompting sound;
2) mobile phone carries out bluetooth connection;
3) after connecting, press paster button S4 for first time, then the number 1 stored in option program during dialing is dialed; Press other keys again can not reset;
4) if press paster button S5 for first time, then the number end number finally dialed in wearer mobile phone is selected during dialing; Press other keys again can not reset;
5) if press paster button S6 for first time, then the number 2 stored in option program during dialing is dialed; Press other keys again can not reset;
6) selected rear buzzer to ring, equipment enters normal monitoring state; Just automatically auto dialing can be realized by the mobile phone of bluetooth connection wearer when detecting and falling down situation;
7) toggle switch shutdown.
Claims (1)
1. fall down alarm footwear, it is characterized in that structure comprises U1 main control chip STM32F103-48, U3 sensor MMA8452Q module, buzzer, 3 function paster buttons and U2 Bluetooth chip MMBC05-0B, wherein U1 main control chip STM32F103-48 is connected with U3 sensor MMA8452Q module I2C1 mouth communication modes; U1 main control chip STM32F103-48 is connected with U2 Bluetooth chip MMBC05-0B serial ports USART1 communication modes; One end of 3 function paster buttons is connected with the pin (33,32,28) of U1 main control chip STM32F103-48 by pull-up resistor, the other end ground connection of 3 function paster buttons; Reset key S2, a ground connection after the electric capacity of a 0.1uf in parallel, the other end is connected with the RESET pin of U1 main control chip STM32F103-48 by upper resistance; Buzzer to be connected 0 Europe resistance access U1 main control chip STM32F103-48 to fill with current system; Described U1 main control chip STM32F103-48 I2C communication modes communicates with U3 sensor assembly MMA8452Q, obtain three 8 A/D values, actual accekeration is converted to according to the acceleration range of setting, in original state, with the vertical downward direction of footwear be X-axis, horizontal line is Y-axis, vertical XY plane sets up coordinate system for Z axis, when shoes have inclination time, reference axis tilts thereupon, then gravity vertical and X-axis can produce an angle a; Just be equivalent to the change in location of acceleration of gravity in reference axis, resolve into three component accekerations in X, Y, Z axis with sciagraphy; According to the accekeration of X, Y, Z axis and the value of acceleration of gravity, calculate the angle a of footwear and vertical direction X-axis, detailed process is: be placed in variable MMA8452q_x by the A/D value of the X-direction obtained, its variable MMA8452q_x number range 0 ~ 255, if variable MMA8452q_x is <128, be positioned at X-axis positive direction
?cos value MMA8452q_x_cos=(float) MMA8452q_x/128*2 of the angle a of its X-axis and gravity vertical; If variable MMA8452q_x>=128; be positioned at X-axis negative direction; MMA8452q_x=~ MMA8452q_x+1; MMA8452q_x_cos=(float) MMA8452q_x/128*2; by the change of the angle beta of shoes bottom surface and level ground; namely judge whether user falls down, and instantaneous acceleration change when walking is excluded; When to be greater than 60 degree be MMA8452q_x_cos<0.5 to angle beta; within 7 ~ 8 seconds, be judged as that shoes posture is unusual if continue, now U1 main control chip STM32F103-48 serial ports USART1 passes through AT instruction to the instruction of U2 Bluetooth chip MMBC05-0B Sending dialled number; The mobile phone dialing phone of U2 Bluetooth chip MMBC05-0B control connection; The clock signal SCL end of described U3 sensor MMA8452Q module and the clock signal SCL(PB10 of U1 main control chip STM32F103-48) hold and connect; The data-signal SDA of U3 sensor MMA8452Q module holds and the data-signal SDA(PB11 of U1 main control chip STM32F103-48) hold and connect; By SCL clock signal and SDA data-signal, U3 sensor MMA8452Q module is to U1 main control chip STM32F103-48 transmission acceleration A/D; Rs 232 serial interface signal TX and the U1 main control chip STM32F103-48 serial ports USART1 signal end RX(PA9 of described U2 Bluetooth chip MMBC05-0B) be connected; Rs 232 serial interface signal RX and the U1 main control chip STM32F103-48 serial ports USART1 signal end TX(PA10 of U2 Bluetooth chip MMBC05-0B) be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210481361.3A CN102972905B (en) | 2012-11-23 | 2012-11-23 | Tumble alarming shoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210481361.3A CN102972905B (en) | 2012-11-23 | 2012-11-23 | Tumble alarming shoes |
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| CN102972905A CN102972905A (en) | 2013-03-20 |
| CN102972905B true CN102972905B (en) | 2015-01-14 |
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| CN201210481361.3A Expired - Fee Related CN102972905B (en) | 2012-11-23 | 2012-11-23 | Tumble alarming shoes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108140295A (en) * | 2015-09-15 | 2018-06-08 | 皇家飞利浦有限公司 | Motion detection device and corresponding method |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103405001B (en) * | 2013-08-30 | 2016-01-13 | 广东乐源数字技术有限公司 | A kind of bluetooth is fallen warning shoe-pad |
| CN104282115B (en) * | 2014-10-10 | 2017-08-25 | 大连乾函科技有限公司 | Detection alarm shoe-pad and alarm method are fallen down based on obliquity sensor |
| CN104821062A (en) * | 2015-04-28 | 2015-08-05 | 深圳市福溢长者科技有限公司 | Bluetooth communication-based falling-off alarm system and alarm method thereof |
| CN104983118B (en) * | 2015-07-10 | 2017-01-25 | 陈胜洁 | Shoes for old man |
| CN106683341A (en) * | 2016-12-26 | 2017-05-17 | 吴中区穹窿山倪源交通器材经营部 | Intelligent reminding method for preventing tumble |
| CN108664129A (en) * | 2018-07-04 | 2018-10-16 | 北京工业大学 | It is a kind of based on gesture identification gloves can learning data acquisition system and implementation method |
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| CN102972905A (en) | 2013-03-20 |
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Granted publication date: 20150114 Termination date: 20151123 |