CN109949543A - A kind of multifunctional shoe and the remotely intelligently monitoring method based on pressure sensitive - Google Patents
A kind of multifunctional shoe and the remotely intelligently monitoring method based on pressure sensitive Download PDFInfo
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Abstract
The invention discloses a kind of multifunctional shoe and the remotely intelligently monitoring method based on pressure sensitive, the pressure information of pressure detecting module acquisition both feet inside, fall detection module acquires human body acceleration change information, pedometer module acquires the acceleration information of three dimensions in space, and locating module uses Client/Server mode acquisition position information；The information of acquisition is sent to microprocessor, microprocessor is judged according to the information received；Microprocessor is monitored in real time the cell phone application end that judging result is sent to guardian by communication module, and the information of transmission includes SOS warning message, tumble warning message, step count information and location information.Present invention employs modularized designs, and long-time is used, and have very big advantage in maintenance and updating functional modules.
Description
Technical field
The invention belongs to technical field of living goods, and in particular to a kind of multifunctional shoe of the anti-tumble of locating alarming and be based on
The remotely intelligently monitoring method of pressure sensitive.
Background technique
With the continuous improvement of people's living standards, more and more people no longer pay close attention to basis problem of food and clothing, but to
The safe and healthy aspect of people is invested.Especially with China human mortality aging, can constantly aggravation, the elderly spend remaining years in comfort
Become social hotspots topic.The elderly such as wanders away, falls at the dangerous big problem for becoming puzzlement children.For another example, it walks outside at night
Junior Lady also face many security risks, if be not added with the precautionary measures, many offenders can be made to have an opportunity to take advantage of.It is above-mentioned
Insecurity factor seriously endangers national personal safety, influences social stability, is unfavorable for the raising of people's lives Happiness Index.From city
In terms of, wearable device popularity of the China at present in relation to safety precaution and health series be not high.Commodity matter on the market
Measure it is very different, how to release it is a not only had the function of that locating alarming was anti-and fallen etc., but also can guarantee have in lower price
A intelligent shoe of more obvious protecting effect, becomes the matter of great urgency for needing to solve instantly.
Presently, there are the problem of have: for the elderly, children cannot achieve 24 hours and guard, and old man maltreated by nurse
Event emerges one after another, and along with the elderly's awareness of safety is fuzzy, action edge is poor, is easy to be swindled, gone astray from the group tumble etc.
A kind of custodial care facility for facilitating wearing is badly in need of in danger.For women, night shift and activity of going on business is added always to exist for a long time uneasy
Total factor.When in danger, this kind of obvious equipment of mobile phone bracelet is easy to enrage offender, may lead to more serious
Consequence.If warning device can be implanted into shoes, concealment and safety will be greatly promoted, and rescue victim in time
It helps.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of multifunctional shoe
And the remotely intelligently monitoring method based on pressure sensitive, by being implanted into Implementation of Embedded System in shoes to the real-time of children under guardianship
Precise positioning, and location information is uploaded to guardian's mobile phone terminal APP.
The invention adopts the following technical scheme:
A kind of remotely intelligently monitoring method based on pressure sensitive, comprising the following steps:
Pressure information on the inside of S1, pressure detecting module acquisition both feet, fall detection module acquire human body acceleration variation
Information, pedometer module acquire the acceleration information of three dimensions in space, and locating module acquires position using Client/Server mode
Confidence breath；
S2, the step S1 information acquired is sent to microprocessor, microprocessor is judged according to the information received；
S3, microprocessor are monitored in real time the cell phone application end that judging result is sent to guardian by communication module,
The information of transmission includes SOS warning message, tumble warning message, step count information and location information.
Specifically, pressure detecting module is using the pressure on the inside of array-type flexible pressure sensor acquisition both feet in step S1
Force information, fall detection module acquire human body acceleration change information using 3-axis acceleration sensor, and pedometer module, which uses, to be added
Velocity sensor acquires the acceleration information of three dimensions in space, and locating module carries out position positioning using DTGS-800 module.
Specifically, microprocessor judges whether pressure is more than defined threshold by pressure detecting algorithm in step S2, if
The pressure value detected in 3s is continued above threshold value, then judges that children under guardianship are in emergency risks state.
Specifically, in step S2, angle angle, human body close angle speed av of the microprocessor according to human body relative to ground
Tumble judgement, the decision condition of tumble are carried out with human body resultant acceleration acc are as follows:
Acc (t) < acctAnd av (t) > avtAnd angle (t) > anglet
Wherein, acctFor acceleration rate threshold, avtFor angular speed threshold value, angletFor angle threshold value.
Further, with three axis direction ax、ay、azThe vector mould of upper acceleration characterizes acceleration signature, human body close plus
Speed acc calculates as follows:
Take the mould av of angular speed in three axis directionsx、avy、avzIt is as follows for human body close angle speed av:
Angle angle includes pitch angle β and roll angle γ:
Angle=| β |+| γ |
Specifically, X in acceleration transducer capture space, Y, the acceleration of tri- dimensions of Z utilize micro- place in step S2
The detection data that device reads 3-axis acceleration sensor output is managed, judges whether people steps paces using dynamic threshold dt, adopts
With peak detection pk, x is taken, the maximum axis of acceleration change calculates step number in tri- axis of y, z.
Further, the decision condition that paces step are as follows: when accelerating curve is entered below dynamic threshold, accelerating curve
Slope is negative, specifically:
Sample_new < sample_old
Wherein, sample_new is this moment acceleration sampled value, and sample_old is last moment acceleration sampled value,
That is acceleration tapers off trend, and slope is negative.
Another technical solution of the invention is a kind of multifunctional shoe, comprising:
Pressure detecting module, for detecting foot force and being sent to microprocessor, microprocessor judges whether to send SOS
Warning message and the cell phone application end that guardian is sent to by communication module；
Pedometer module captures the change information of human body acceleration using 3-axis acceleration sensor and is sent to micro process
Device, microprocessor statistics step number and the cell phone application end that guardian is sent to by communication module；
Locating module, is positioned in real time using GPSOne and location information is sent to microprocessor, and microprocessor is true
The cell phone application end of guardian is set and is sent to by communication module in positioning；
Fall detection module detects human body acceleration change information by three axis digital acceleration sensors and is sent to micro-
Processor, information judges whether to fall and be sent to by communication module the cell phone application of guardian microprocessor based on the received
End；
Communication module carries out communication connection by the cell phone application end of virtual eSIM card and guardian；
Power module respectively with pressure detecting module, microprocessor, pedometer module, communication module, locating module and tumble
Detection module is connected for powering.
Specifically, locating module uses DTGS-800 module, it is connect, can will be adopted with microprocessor by RS232 bus
The MPC server that the GPS satellite data and cdma base station chip data collected is sent to telecommunications carries out operation, then with character string
Form return operation result, connected between RS232 bus bus and TTL circuit by SP3232 chip.
Further, power module uses the lithium battery of 3.7V, and respectively microprocessor and pedometer module provides 3.3V's
Operating voltage provides+4.0 ± 10% supply voltage for locating module, provides the operating voltage of 5V for pressure detecting module, micro-
The model MSP430F14 of processor.
Compared with prior art, the present invention at least has the advantages that
A kind of remotely intelligently monitoring method based on pressure sensitive of the present invention can accurately acquire the pressure letter of user's sending
Breath, the variation of real-time detection tumble person's body acceleration accurately position children under guardianship and are presently in address information, and accurate high
Complete step function in effect ground.The effect reached is to receive the warning message or learn Falls Among Old People that victim sends at the first time
Position, and rescue measure is taken in time.
Further, using the array-type flexible pressure sensor of TEKSCAN company, the U.S., size can be according to demand
Customization and flexible comfort, are quite suitable for wearable device；ADXL345 3-axis acceleration sensor can real-time capture human body add
Velocity variations, and whether met using the detection algorithm accurate judgement tumble condition based on threshold value；Step function also uses ADXL345
3-axis acceleration sensor realizes the acquisitions of data.The same sensor completes the function of two modules, both saves sky in this way
Between, conducive to the volume of entire module is reduced, and it can efficiently and accurately be completed at the same time the function of fall detection and step counting.
Further, the long-range monitoring based on pressure sensitive is main innovation of the invention.People, can not when usually movable
It can avoid the power that ground applies different degrees of size to sole.Therefore of the invention that triggering organ is arranged on the inside of both feet two, when
When the pressure that the pressure sensor surveyed in double-legged detects is more than defined threshold, and detected in continuous 3s 4 times and 4 times
Above threshold value overshoot, then meet alert if.Detection algorithm based on threshold value being capable of accurately judging result, and algorithm
The particularity of setting can be avoided false triggering.
Further, fall detection module, with the acceleration of ADXL345 3-axis acceleration sensor real-time detection human body
Data, then collected data are uploaded in single-chip microcontroller, single-chip microcontroller passes through the pre-set detection algorithm based on threshold value
Judged, tumble decision condition is opposite comprehensive with the angle three on ground from human body resultant acceleration, human body close angle speed, human body
Determine, if meet tumble condition, single-chip microcontroller is sent to eSIM card by I/O interface and is instructed, by the location information of tumble person with
Tumble alarm is sent to the mobile phone of guardian together, to guarantee that guardian can be in the situation of first time discovery tumble person.
Further, pedometer module is the X by ADXL345 acceleration transducer, in capture space, tri- dimensions of Y, Z
Acceleration, using microcomputer reads 3-axis acceleration sensor export detection data, algorithm include include dynamic threshold
Value and peak detection.It selects corresponding data to be handled according to human motion state, according to the motion state of user, dynamically cuts
Calculating axis is changed, to realize the measurement of the statistics to step number, mileage of walking, the pedometer module function of Lai Shixian multifunctional shoe.
The invention also discloses a kind of multifunctional shoe, locating module is by the communication module of eSIM card by collected position
Complete positioning in real time in the cell phone application end that information is sent to guardian；Pressure detecting module is based on array-type flexible pressure sensor
When detecting that pressure reaches given threshold, control instruction is issued by single-chip microcontroller, SOS warning message is issued into prison by communication module
Protect people；Fall detection module detects human body acceleration by tri- axis digital acceleration sensor of ADXL345 and changes and acquire data,
Single-chip microcontroller judges whether to fall and by short massage notice guardian by related algorithm；Pedometer module is caught using acceleration transducer
The variation of acceleration is caught to generate data, cell phone application end is presented in by communication module, is realized function such as alarm positioning for the first time
In energy module implantation shoes, for existing Intelligent bracelet, there is bigger practicability.Especially for the elderly, out
Door forgets that a possibility that band bracelet is bigger, but there is no forget the problem of wearing to multifunctional shoe of the invention；For needing for a long time
The women to go out alone, shoes are more hidden compared to bracelet, when encountering criminal, joined using multifunctional shoe to urgent
It is that human hair goes out distress signals and is not easy to enrage offender, danger coefficient can be minimized；People wears bracelet during the motion
Movement effects can be hindered, this multifunctional sport shoe is more able to satisfy the demand of people.
Further, locating module GPSOne combines GPS, CDMAlX, GIS and Internet technology, using Client/
Server mode, it will wirelessly assist A-GPS and advanced forward link AFLT triangulation location technology to organically combine, realize high-precision
The positioning of degree, high availability and fair speed.DTGS-800 module is the main body of positioning terminal, has been internally integrated GPSOne device
Part is positioned using GPSOne solution；The AT command interface of offer standard RS-232 data-interface and standard is data, short
The transmission of the offers such as message quickly, reliable, safe.
Further, for multifunctional sport shoe using MSP430F14 as central processing unit, which not only has 16
Efficient microprocessor system, powerful peripheral circuit resource, it is often more important that it has the characteristics that super low-power consumption, this point
It is highly important for high-performance, portable wearable device.
In conclusion being used for long-time, in maintenance and updating functional modules present invention employs modularized design
With very big advantage.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is general frame figure；
Fig. 2 is master control chip functions module map；
Fig. 3 is circuit diagram；
Fig. 4 is power module schematic diagram；
Fig. 5 is pliable pressure sensor internal circuit diagram.
Wherein: 1. pressure detecting modules；2. microprocessor；3. pedometer module；4. communication module；5. power module；6. fixed
Position module；7. fall detection module.
Specific embodiment
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Please refer to Fig. 1 and Fig. 2, a kind of multifunctional shoe of the present invention, including pressure detecting module 1, microprocessor 2, step counting mould
Block 3, communication module 4, power module 5, locating module 6 and fall detection module 7, pressure detecting module 1, pedometer module 3, communication
Module 4, locating module 6 and fall detection module 7 are attached for I/O mouthfuls corresponding with microprocessor 2 respectively, by microprocessor 2
Control the work of whole system.Collected location information is sent to monitoring by the communication module 4 of eSIM card by locating module 6
Complete positioning in real time in the cell phone application end of people；Pressure detecting module 1 is based on array-type flexible pressure sensor and detects that pressure reaches
When given threshold, control instruction is issued by microprocessor 2, SOS warning message is issued into guardian by communication module 4；It falls and examines
It surveys module 7 and detects human body acceleration variation by three axis digital acceleration sensors, acquisition Data Concurrent gives microprocessor 2,
Microprocessor 2 judges whether to fall and by short massage notice guardian by related algorithm；Pedometer module 3 utilizes 3-axis acceleration
Sensor captures the variation of acceleration to generate data, is sent to cell phone application end by communication module 4, power module 5 is distinguished
Use is connect with pressure detecting module 1, microprocessor 2, pedometer module 3, communication module 4, locating module 6 and fall detection module 7
In power supply.
Referring to Fig. 3, microprocessor 2 uses MSP430F149, MSP430F149 is 16 with super low-power consumption mode
Single-chip microcontroller controls other modules and completes entire function.AVcc the and DVcc pin of MSP430F149 and the output phase of power module
Even, AVss pin and DVss pin ground connection；The P1.2 of MSP430F149 connects the DO pin of array-type flexible pressure sensor；
The P3.4 and P3.6 of MSP430F149 meets the T1IN and T2IN of SPSS3232 respectively；The T1OUT and R1IN of SPSS3232 connects respectively
The TXD and RXD of DTGS-800；DCD, RI, RFR, DTR, CTS pin of DTGS-800 connect respectively MSP430F149 P4.0,
P4.1, P4.2, P4.3, P4.4 pin.
Locating module 6 combines GPS, CDMAlX, GIS and Internet technology, using Client/Server mode, by nothing
Line assists A-GPS and advanced forward link AFLT triangulation location technology to organically combine, and realizes high-precision, high availability and higher speed
The positioning of degree.Locating module 6, as positioning terminal main body, has been internally integrated GPSOne device, adopted using DTGS-800 module
It is positioned with GPSOne solution；The AT command interface of offer standard RS-232 data-interface and standard is data, short message etc.
Quickly, reliable, safe transmission is provided.
Referring to Fig. 3, GPSOne collects geographic position data from cellular network and GPS network network, pass through the group to data
It closes, generates accurately three-dimensional data.Cdma wireless network is the basis of GPSOne technology, and a CDMA hardware module is needed to prop up
Hold location technology.Comprehensively consider demand of the invention, selects in CDMA module product that volume is minimum, fastest, cost is relatively low
DTGS-800 module.Entire position fixing process needs to initiate GPS request by interruption or network, and locating module will be collected
The MPC server that GPS satellite data and cdma base station chip data are sent to telecommunications carries out operation, then in the form of character string
Return to operation result.Communication between DTGS-800 and microprocessor 2 is completed by RS232 bus.RS232 and TTL circuit
Between have to carry out logical relation and transmission level conversion, in the present invention use independent conversion element SP3232 core
Piece.
Pressure detecting module 1 utilizes the fexible film grid of array-type flexible pressure sensor such as U.S. Tekscan company
Sensor detects pressure.When the two panels polyester film of array-type flexible pressure sensor is combined into one, it is a large amount of laterally and
The crosspoint of longitudinal conductor forms pressure sensitive lattice array, and the variation of pressure is reflected with the variation of resistance value, and sensor will
Collected data feedback judges whether pressure is more than regulation threshold by pressure detecting algorithm to microprocessor, then by microprocessor
Value, if threshold value overshoot persistently occurs in 3s, then it represents that children under guardianship are in emergency risks state at this time, and single-chip microcontroller is logical
It crosses I/O interface and sends instruction to eSIM card, to send SOS note of crying for help to guardian in time；
Pressure detecting algorithm based on threshold value is by real-time detection pressure value P (t), with the pressure threshold being set in advance
Pt (pressure threshold) is compared, once be more than, and the duration is 3s or more, then is judged as and endangers
Danger.Determine that victim is in dangerous condition are as follows:
P (t) > pt and duration > 3s
Referring to Fig. 5, array-type flexible pressure sensor inside circuit structure is by the crosspoint of horizontal and vertical conductor
Pressure sensitive array is formd, pressure change is reflected by resistance change, longitudinal array meets test voltage test voltage,
Horizontal array is connected on switch by an operational amplifier, and the output of switch and test voltage is all connected on A/D, defeated by A/D
Electric signal out.
The ADXL345 3-axis acceleration sensor real-time detection human body that fall detection module 7 is released with ADI company adds
Speed data, then collected data are uploaded in microprocessor 2, microprocessor 2 is by pre-set based on threshold value
Detection algorithm judged, if meeting tumble condition, microprocessor 2 by I/O interface to eSIM card send instruction, will fall
The location information of person and tumble alarm are sent to the mobile phone of guardian together, to guarantee that guardian can fall in first time discovery
The situation of person；
Tumble judgement is carried out with based on the detection algorithm of threshold value.The judgement that regulation human body is fallen in this method refers to
It indicates: angle angle of the human body relative to ground；Human body close angle speed av (angular velocity)；Human body resultant acceleration
acc(acceleration)。
Acceleration signature is characterized with the vector mould of the acceleration in three axis directions, i.e. resultant acceleration is as follows:
Since tumble direction is unpredictable, taking the mould of the angular speed in three axis directions is that close angle speed is as follows:
People is divided into front and back when falling and falls and side tumble, therefore angle is defined as follows by pitch angle β and roll angle γ:
Angle=| β |+| γ |
The size of each threshold value is determined by SVM (support vector machines method) again.It is computed acceleration rate threshold: acct=0.65g；Angle
Threshold speed: avt=67.4deg/s；Angle threshold value: anglet=36.7deg.
The decision condition fallen are as follows: acc (t) < acctAnd av (t) > avtAnd angle (t) > anglet。
Pedometer module 3 uses ADXL345 acceleration transducer, passes through the X in acceleration transducer capture space, Y, Z tri-
The acceleration of a dimension, the detection data exported using microcomputer reads 3-axis acceleration sensor, according to human motion shape
State selects corresponding data to be handled, and according to the motion state of user, switching at runtime calculates axis, to realize the system to step number
The measurement of meter, walking mileage, the pedometer module function of Lai Shixian multifunctional shoe；
Foot, leg, arm, waist are all moving people when walking, and can generate certain acceleration, and what is measured from foot adds
Speed is most accurately.
Judge whether people steps paces with dynamic threshold dt (dynamic threshold).The judgement item that paces step
Part are as follows: when accelerating curve is entered below dynamic threshold, accelerating curve slope is negative.That is sample_new < sample_
old。
Step number is calculated with peak detection pk (peak detection), takes x, acceleration change is maximum in tri- axis of y, z
One axis calculates.
Communication module 4 uses cdma wireless network technology, and CDMA module needs to carry out user with eSIM card to identify parallel-connection network,
So that multifunctional shoe is had access to the cdma network of China Telecom, thus using cellular data by the location information of children under guardianship,
Step counting information is sent to mobile phone terminal, and carries out the transmission of SOS alarm message.ESIM card does not need that independent card insertion base is arranged, and is
The virtual SIM card of one kind being embedded in inside master chip, when use, only need backstage to activate；
Power module 5 is energy support of the invention.It is the lithium battery convenient to wear using two section 3.7V to system power supply.
The operating voltage of MSP430F149 and ADXL345 is chosen as 3.3V, and the DTGS-800 supply voltage in CDMA module be+
4.0 ± 10%, the driving circuit section of array-type flexible pressure sensor needs the operating voltage of 5V.Linear voltage regulator is selected
TPS71533, the range of the voltage-stablizer input voltage of the series are 2.5V~24V.
Referring to Fig. 4, the end GND of linear voltage regulator TPS71533 is grounded, VIN terminates the VOUT of RT9701CB,
The VOUT of TPS71533 meets the output V3.3 of entire power module, and the switch of battery BETTERY connects the end VIN of RT9701CB,
The GND of RT9701CB is grounded.
Preferably, power module 5 is additionally added RT9701CB as power management chip, can be when too high or too low for temperature
Stop power supply, to protect circuit.
Microprocessor 2 uses MSP430F149 central processing unit, and microprocessor 2 is 16 lists with super low-power consumption mode
Piece machine, minimum system only need additional power source that can run, and external high speed crystal oscillator and low speed crystal oscillator are stopped if necessary to low-power consumption
It sleeps, high speed crystal oscillator can be closed, only use low speed crystal oscillator, to reduce power consumption.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being described and shown in usually here in attached drawing is real
The component for applying example can be arranged and be designed by a variety of different configurations.Therefore, below to the present invention provided in the accompanying drawings
The detailed description of embodiment be not intended to limit the range of claimed invention, but be merely representative of of the invention selected
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
A kind of remotely intelligently monitoring method based on pressure sensitive, comprising the following steps:
S1, the pressure information that both feet inside is acquired by pressure detecting module, acquire human body by fall detection module and add
Velocity variations information acquires the acceleration information of three dimensions in space by pedometer module, uses Client/ by locating module
Server mode acquisition position information；
Pressure information of the pressure detecting module using array-type flexible pressure sensor acquisition both feet inside, fall detection mould
Block acquires human body acceleration change information using 3-axis acceleration sensor, and pedometer module acquires space using acceleration transducer
The acceleration information of three dimensions is used by locating module and sticks into row information transmission using virtual eSIM.
S2, the step S1 information acquired is sent to microprocessor, microprocessor is judged according to the information received；
S3, microprocessor are carried out the cell phone application end that the judging result of step S2 is sent to guardian by communication module
Real time monitoring, the information of transmission includes SOS warning message, tumble warning message, step count information and location information.
A kind of multifunctional shoe of the present invention, for the first time in use, needing to carry out bindings with mobile phone terminal APP.It is divided into two kinds:
Old money only needs to bind with guardian's mobile phone；Grow up money can simultaneously with oneself mobile phone and the mobile phone of emergency contact into
Row binding.Under non-emergent triggering situation, shoes mainly play step counting, positioning and communication role.In positioning function, as long as shoes
In normal operating conditions, the location information of real-time update can be seen from bound cell phone application.In step function,
When carrying out handset binding operation for the first time, need to input the accurate height of user, weight, age, this step passes acceleration
Sensor data capture and step counting algorithm operation have a significant impact.User opens mobile phone at any time i.e. it can be seen that step counting situation and consumption
Calorie.In communication function, eSIM card is directly embedded on master chip as a kind of virtual SIM card, does not need to purchase
Previous physical SIM card is bought, user need to only complete long-range activation according to the operating instruction in eSIM wechat client；When opening card,
Operator only needs to be commenced business with charge system activating the service from the background.Thus can be completed multifunctional shoe and mobile phone it
Between wireless communication.
When user causes danger, shoes would be at promptly triggering working condition.Be divided into 2 kinds: danger warning triggering and
Alarm of falling triggers.
When user, which encounters criminal, to be needed to alarm to household's secret, user needs another with going to hit on the inside of a foot
The inside of one foot guarantees continuously to crash within the period of 3s 4 times or more, the use of strength is about that user can hear pair
Touch sound.After end of operation, shoes can send short message to emergency contact immediately, and inform specific position locating for victim
It sets, the relief that such victim can obtain household in time is unlikely to be encroached on by criminal, and hazard index is minimized.
When user is the elderly, tumble alarm can be more likely triggered.When the elderly falls accidentally, acceleration transducer
Human motion state exception can be captured, after being judged as tumble, guardian can receive alarm message at once, learn that old man falls rapidly
Location information takes urgent measure at the first time.Each module works independently, but complements each other, and common cooperation makes one
A high-performance, low-power consumption multifunctional shoe.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (10)
1. a kind of remotely intelligently monitoring method based on pressure sensitive, which comprises the following steps:
Pressure information on the inside of S1, pressure detecting module acquisition both feet, fall detection module acquire human body acceleration change information,
Pedometer module acquires the acceleration information of three dimensions in space, and locating module is believed using Client/Server mode acquisition position
Breath；
S2, the step S1 information acquired is sent to microprocessor, microprocessor is judged according to the information received；
S3, microprocessor are monitored in real time the cell phone application end that judging result is sent to guardian by communication module, are sent
Information include SOS warning message, tumble warning message, step count information and location information.
2. monitoring method according to claim 1, which is characterized in that in step S1, pressure detecting module is using flexible battle array
The pressure information of line pressure sensor acquisition both feet inside, fall detection module acquire human body using 3-axis acceleration sensor
Acceleration change information, acceleration information of the pedometer module using acceleration transducer acquisition three dimensions in space, locating module
Position positioning is carried out using DTGS-800 module.
3. monitoring method according to claim 1, which is characterized in that in step S2, microprocessor is calculated by pressure detecting
Method judges whether pressure is more than defined threshold, if the pressure value detected in 3s is continued above threshold value, judges at children under guardianship
In emergency risks state.
4. monitoring method according to claim 1, which is characterized in that in step S2, microprocessor according to human body relative to
Angle angle, human body close angle speed av and the human body resultant acceleration acc on ground carry out tumble judgement, the decision condition of tumble are as follows:
Acc (t) < acctAnd av (t) > avtAnd angle (t) > anglet
Wherein, acctFor acceleration rate threshold, avtFor angular speed threshold value, angletFor angle threshold value.
5. monitoring method according to claim 4, which is characterized in that with three axis direction ax、ay、azUpper acceleration to
Mould is measured to characterize acceleration signature, human body resultant acceleration acc calculates as follows:
Take the mould av of angular speed in three axis directionsx、avy、avzIt is as follows for human body close angle speed av:
Angle angle includes pitch angle β and roll angle γ:
Angle=| β |+| γ |
6. monitoring method according to claim 1, which is characterized in that in step S2, in acceleration transducer capture space
The acceleration of tri- dimensions of X, Y, Z, the detection data exported using microcomputer reads 3-axis acceleration sensor, using dynamic
Threshold value dt judges whether people steps paces, using peak detection pk, takes x, the maximum axis of acceleration change in tri- axis of y, z
Calculate step number.
7. monitoring method according to claim 6, which is characterized in that the decision condition that paces step are as follows: accelerating curve
When below into dynamic threshold, accelerating curve slope is negative, specifically:
Sample_new < sample_old
Wherein, sample_new be this moment acceleration sampled value, sample_old be last moment acceleration sampled value, i.e., plus
Speed tapers off trend, and slope is negative.
8. a kind of multifunctional shoe, which is characterized in that utilize monitoring method described in claim 1, comprising:
Pressure detecting module (1), for detecting foot force and being sent to microprocessor (2), microprocessor (2) judges whether to send out
It send SOS warning message and is sent to the cell phone application end of guardian by communication module (4)；
Pedometer module (3) captures the change information of human body acceleration using 3-axis acceleration sensor and is sent to microprocessor
(2), microprocessor (2) counts step number and is sent to the cell phone application end of guardian by communication module (4)；
Locating module (6) is positioned in real time using GPSOne and location information is sent to microprocessor (2), microprocessor
(2) it determines position and is sent to the cell phone application end of guardian by communication module (4)；
Fall detection module (7) detects human body acceleration change information by three axis digital acceleration sensors and is sent to micro-
Processor (2), information judges whether to fall and is sent to guardian by communication module (4) microprocessor (2) based on the received
Cell phone application end；
Communication module (4) carries out communication connection by the cell phone application end of virtual eSIM card and guardian；
Power module (5) respectively with pressure detecting module (1), microprocessor (2), pedometer module (3), communication module (4), positioning
Module (6) and fall detection module (7) connection are for powering.
9. multifunctional shoe according to claim 8, which is characterized in that locating module (6) uses DTGS-800 module, passes through
RS232 bus is connect with microprocessor (2), can be sent to collected GPS satellite data and cdma base station chip data
The MPC server of telecommunications carries out operation, and operation result, RS232 bus bus and TTL circuit are then returned in the form of character string
Between connected by SP3232 chip.
10. multifunctional shoe according to claim 8 or claim 9, which is characterized in that power module (5) uses the lithium battery of 3.7V,
Respectively microprocessor (2) and pedometer module (3) provide the operating voltage of 3.3V, provide+4.0 ± 10% for locating module (6)
Supply voltage, for pressure detecting module (1) provide 5V operating voltage, the model MSP430F14 of microprocessor (2).
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