CN107945469A - A kind of sitting posture monitoring method and system - Google Patents
A kind of sitting posture monitoring method and system Download PDFInfo
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- CN107945469A CN107945469A CN201711424980.8A CN201711424980A CN107945469A CN 107945469 A CN107945469 A CN 107945469A CN 201711424980 A CN201711424980 A CN 201711424980A CN 107945469 A CN107945469 A CN 107945469A
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- G—PHYSICS
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- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
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- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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Abstract
The invention discloses a kind of sitting posture monitoring method and system, the described method includes：Obtain the sitting posture data of the first user；The sitting posture data are handled, generate the angle of sitting posture；The angle and default angle threshold are compared, when the angle is not less than default angle threshold, generate alerting signal, the alerting signal is used to indicate that first user adjusts sitting posture.Thus, user is reminded to adjust sitting posture, so as to avoid triggering further health problem.
Description
Technical field
The present invention relates to field of sensing technologies, and in particular to a kind of sitting posture monitors system.
Background technology
Since most of working clan and student need sitting in routine work and study, and wherein there are a considerable amount of people
It cannot keep good sitting posture.And undesirable sitting posture can then cause a series of problems, such as myopia, cervical spondylosis, lumbar vertebra disease, green grass or young crops is influenced
The body development of juvenile student, endangers health of people.When people feel because the sitting posture problem of oneself triggered it is a series of not
After good reaction, expectant treatment or operative treatment are just carried out.Body bears pain, and economy sustains a loss, but treatment results
Always cannot be fully up to expectations.It can be seen that though sitting posture problem is minor matter, influence huge.
Existing correcting sitting posture product on the market, such as sitting position posture correction belt, correcting sitting posture frame etc..It can only be asked in sitting posture
Topic is, it is necessary to which competence exertion acts on after correcting, and constraint sense is strong, is not easy to daily exercise.And chair for correcting sitting posture, take up space compared with
Greatly, price is higher, and is not easy to move, it is impossible to moves school or company to from family daily.
As it can be seen that in the market is badly in need of a good correcting sitting posture product, when user's sitting posture can receive at once when something goes wrong
Remind, and can be provided according to the sitting posture data of user accurately correction suggest, play and prevent in advance, prevent from source because
Incorrect sitting-pose and the health problem triggered.
The content of the invention
It is an object of the invention to provide a kind of sitting posture monitoring method and system, and sitting posture is adjusted to prompting user in time,
And generate user's sitting posture data sheet, thus in time, be effectively prevented from triggering further health problem.
To achieve the above object, in a first aspect, the present invention provides a kind of sitting posture monitoring method, the described method includes：
A kind of sitting posture monitoring method, it is characterised in that the described method includes：
Obtain the sitting posture data of the first user；
The sitting posture data are handled, generate the angle value of sitting posture；
The angle value and default angle threshold are compared, when the angle value is not less than default angle threshold
When, alerting signal is generated, the alerting signal is used to indicate that first user adjusts sitting posture.
In a kind of possible implementation, the sitting posture data include：
The acceleration of angular speed and X-direction, wherein, the X-axis and gravity direction are perpendicular.
In a kind of possible implementation, the method further includes：
According to time sequencing, the angle value is stored；
The angle value of storage is sent to terminal, so that second user obtains the seat of the first user by the terminal
Appearance state.
In a kind of possible implementation, the alerting signal includes：Audible reminder signal and vibration reminding signal.
Second aspect, the present invention provides a kind of sitting posture to monitor system, and the monitoring system includes：
Sensor, the sensor are used for the sitting posture data for obtaining the first user；
Processor, handles the sitting posture data, generates the angle value of sitting posture；
The processor is additionally operable to, and the angle value and default angle threshold are compared, when the angle value not
During less than default angle threshold, alerting signal is generated, the alerting signal is used to indicate that first user adjusts sitting posture.
In a kind of possible implementation, the sitting posture data include：
The acceleration of angular speed and X-direction, wherein, the X-axis and gravity direction are perpendicular.
In a kind of possible implementation, the sitting posture monitoring system further includes memory and Transmit-Receive Unit：
The memory, for according to time sequencing, being stored to the angle value；
The Transmit-Receive Unit, for the angle value of storage to be sent to terminal, so that second user passes through the end
End obtains the sitting posture state of the first user.
In a kind of possible implementation, the alerting signal includes：Audible reminder signal and vibration reminding signal.
The invention has the advantages that：
User can be reminded to adjust sitting posture in time, so as to avoid triggering further health problem.
The sitting posture data of user can be obtained, using the sitting posture behavior of mass data analysis user, generate user's sitting posture report
Table, preferably to provide user's sitting posture correction function opinion.
When user's sitting posture uploads, server (i.e. Cloud Server etc.) is required no, user mobile phone can be with sitting posture detection system
System is connected directly, and increases the security of data.
Brief description of the drawings
Fig. 1 is sitting posture monitoring method flow chart provided in an embodiment of the present invention；
Fig. 2 is the process chart of processor provided in an embodiment of the present invention；
Fig. 3 is sitting posture monitoring system structure diagram provided in an embodiment of the present invention；
Fig. 4 is a specific embodiment of Fig. 3.
Embodiment
Following embodiments are used to illustrate the present invention, but are not limited to the scope of the present invention.
Embodiment 1
Fig. 1 is sitting posture monitoring method flow chart provided in an embodiment of the present invention.This method can be used for sitting posture monitoring system,
The sitting posture monitoring method is described below.
Step 110, the sitting posture data of the first user are obtained.
The executive agent of this method can be the processor in sitting posture monitoring system.
Step 120, the sitting posture data are handled, generates the angle value of sitting posture.
Sitting posture data can include：Angular speed and the acceleration in X, Y, Z axis direction, wherein, the X-axis and gravity direction phase
Vertically.
The executive agent of this method can be the sensor assembly in sitting posture monitoring system, which can be
MPU6050 modules, MPU6050 modules are six axle sensor modules, including 3-axis acceleration, three axis angular rates.Due to this
MPU6050 modules put together acceleration and angular speed detection, therefore, eliminate combination gyroscope and accelerator time shaft it
The problem of poor, and due to realizing the function of gyroscope and accelerator with six axle sensor modules, the usage amount of component subtracts
It is few, therefore, encapsulated space is decreased, and when in use, its data dimension is larger, easy to monitor and the reality of data accuracy
It is existing, convenient operation.
When sitting posture monitoring system is worn on front, the central point of left chest to right chest is origin, by origin, gravity
Direction is Y-axis, vertical with Y-axis for X-axis by origin, vertical with X-axis and Y-axis for Z axis by origin.By the sitting posture
When monitoring system is worn on front, its can automatic calibrating direction, it is conventional coordinates to be defaulted as above-mentioned coordinate.
The executive agent of the step can be the processor in sitting posture monitoring system, and the model of the processor can be
CC2541 processors, or the processor of the low-power consumption bluetooth chip such as nrf51822, the Bluetooth chip is easy to follow-up and whole
End, such as mobile phone communicate.The equipment (i.e. sitting posture monitoring system) needs client to carry, and power supply uses lithium battery, therefore needs
Low-power chip is selected, communication mode selects bluetooth that can be direct-connected with mobile phone, and speed is enough, of low cost.
Processor is for the acceleration and angular speed that gets, it is necessary to be filtered to it, so that the data obtained are more
Precisely, and it is easily achieved.In filtering, Kalman filtering method can be taken, filters out the noise in acceleration and angular speed data,
Filtered angular speed is integrated and angle value is obtained by acceleration correction.The angle value monitors the wearing of system according to sitting posture
Position and it is different, such as, when which is worn on front, the central point of the position of wearing is origin, left chest to the institute for having chest
Rectilinear direction be X-direction, by origin, (could also say that the direction where vertebra) vertical with X-axis is Y direction.
At this time, the angle value is it can be appreciated that rotation angle around X-axis.Kalman filtering method can carry out the data of collection in worksite
Renewal in real time and processing, it is widely used communication, Navigation, Guidance and Control etc. are multi-field.
Step 130, the angle value and default angle threshold are compared, when the angle value is not less than default
During angle threshold, alerting signal is generated, the alerting signal is used to indicate that the user adjusts sitting posture.
Wherein it is possible to prestore angle threshold in the first memory, which can be set as needed
It is fixed, such as, 20 degree.The numerical value is set by substantial amounts of data analysis.In one embodiment, default angle threshold
It can be 20 degree, during more than 20 degree, generate alerting signal, such as " drop drop " sound, or (can pass through equipment dials key to Rack
Carry out alerting pattern switching), to remind first user's sitting posture lack of standardization, it is necessary to be adjusted.
In another embodiment, default angle threshold can include two, first angle threshold value and second angle threshold
Value, first angle threshold value can be 20 degree, and second angle threshold value can be 70 degree, when sitting posture angle be greater than or equal to 20 degree,
During less than 70 degree, alerting signal is generated, more than 70 degree when (including 70 degree), does not generate alerting signal, can be to avoid general with this
User lies prone to sleep on desk, or pickup of bowing is mistakenly identified as incorrect sitting-pose to article.
Further, the method further includes：
Step 140, according to time sequencing, the angle value is stored.
Step 150, the angle value of storage is sent to terminal, so that second user obtains first by the terminal
The sitting posture state of user.
It should be noted that step 140,150 can be with the execution sequence of step 130 from numbering influence.
There is first memory, which can store the angle value of sitting posture in the processor.Such as
The first memory can store the angle value of sitting posture according to certain cycle, such as, store the angle within 10 minutes
Angle value.
Then, the angle value within 10 minutes of storage is periodically sent to second memory, it is to be understood that
The memory space of second memory is more than first memory, thus, can be to the angle value of certain time by second memory
Stored, easy to follow-up analyzing and processing.
It should be noted that angle value storage in the first memory is to after second memory, first memory can be with
Automatic clear, in order to be stored to the angle value in next cycle.When needing to send the angle value in certain time, processing
Device can directly obtain the angle value in the certain time from second memory, so that, received necessarily easy to subsequent terminal
After angle value in time, sitting posture report is generated using the angle value.
Such as the angle value in first memory, can by Bluetooth transmission to terminal so that second user pass through it is described
Terminal knows the sitting posture state of the first user.Such as generation sitting posture report, it can check that the first user is certain by sitting posture report
The number of alerting signal is received in period, whether can intuitively find out the sitting posture of user improves.Terminal can be mobile phone, IPAD
Deng.
The second user and the first user may be the same or different, such as, the first user can be wearer's sheet
People, second user can be wearer relatives, such as parent etc., and as the first user and different second user, second user can
By the sitting posture report in terminal, to remind the first user to adjust sitting posture etc..
In one example, sitting posture monitoring system app is installed, terminal receives one period of the first user in the terminal
During interior angle value, angle value that can be in the period is handled and generates its sitting posture report, and holding for terminal is reminded with this
The change of person's sitting posture, the holder of terminal, i.e. second user, such as parent, when the holder of terminal is parent, the angle
Curve can intuitively find out whether sitting posture improves, or user can also be reminded to adjust sitting posture by parent.
When terminal and processor communication, Bluetooth communication can be used.In the following, to how to pass through indigo plant between terminal and processor
Tooth communication is specifically described.
First, media access control (Media Access Control, MAC) address of the bluetooth of terminal is set.In order to
Simplify and use, the MAC Address that bluetooth is set can be directly selected, and stored to reach quick connection sitting posture prison
The purpose of examining system.When setting bluetooth MAC, the problem of terminal can automatically detect input address mistake, can simultaneously avoid defeated
Enter mistake.
Then, the bluetooth module with sitting posture monitoring system is connected.The application is attached using BLE4.0 agreements, with indigo plant
Tooth can get the service of bluetooth in the case of normal communication, then by the description for the characteristic value for setting different bluetooths,
So that the different characteristic value of bluetooth have the function of it is different.In this application since bluetooth module has notice authority, set
Put its informing function.
Finally, it is communication between terminal.When terminal is mobile phone, and the mobile phone can lead to for Android (Android)
Cross and directly invoke Android application programming interfaces (Application Programming Interface, API) to obtain
Take including signal strength, reading/writing characteristics method etc., notify to obtain the content of data by reading characteristic value.Then write to writing characteristic value
Enter data to realize the communication with terminal.
In the following, the specific design to bluetooth is described.
Since a bluetooth double-contracting can accommodate the data of 20 bytes, the communication protocol of design causes every number
It can meet the requirement no more than 20 bytes according to bag.Institute is so as to simplify resolve packet processing procedure.It is defined as follows：
Packet header is 0xAA, and bag tail is 0x55, and second is the total amount of byte after this.3rd is instruction code, afterwards
For data content.Such as when angle threshold is set, the angle of depression is could be provided as 20 °, or the elevation angle is -15 °, since instruction code is
0, so being according to protocol data bag：
0xAA 0x04 0x00 0xF1(-15)
0x12(20)0x55
Sitting posture monitor system and cell phone application data sending receive using the agreement carry out communication can effectively improve it is logical
Believe speed.Cell phone application realizes the function of FastData, can automatic packaging Data Concurrent give sitting posture monitoring system.
There is display screen in terminal, the angle value of sitting posture can be shown on the visualization interface of APP, below it is right
This is specifically described.
Visualization interface includes the observation of pitch angle, standard sitting position calibration, and sitting posture abnormal alarm and other data are seen
The function such as examine.The data for monitoring system by receiving sitting posture and communicating, by real-time sitting posture reflection to the interface voluntarily drawn, pass through
Test can accurately react sitting posture information.
Further, the function of calibration sitting posture can be set in sitting posture monitoring system, and keeping correct by wearer sits
Appearance, then clicks on calibration knob and stands 2s, the internal deviation of sitting posture monitoring system progress, which calculates, to be eliminated, then correct sitting posture is uploaded
Function is realized into cell phone application.The application can also record the function of other data observation such as run time.
The sitting posture monitoring method provided using the application, may remind the user that incorrect sitting-pose has occurred, it is possible thereby to avoid
Further health problem.
The processing procedure of processor is specifically described below.
Have an operating system abstract layer (OSAL) inside processor, by set different events and run time come
Control and management process device chip.The core of design is initialization event and timed events and receives to interrupt.Its flow is such as
Shown in Fig. 2, Fig. 2 is the process chart of processor provided in an embodiment of the present invention.As shown in Fig. 2, the process includes following step
Suddenly：
Step 210, start.
Step 220, system initialization.
Step 230, judge whether to receive and interrupt, interrupted if received, jump to step 240.If not receiving interruption, jump
Go to step 250.
Step 240, processing receives data.
Wherein, data refer to sitting posture data.
Step 250, determine whether timer event, if timer event, jump to step 260, if not
Timer event, jumps to step 270.
Step 260, current sitting posture information and other information are sent.
Wherein, sitting posture information is angle.
Step 270, program main thread and other events.
Wherein, initial timing device interval time interval could be provided as 20ms.Program initialization function is Simple BLE
Peripheral_Init, initialization package Bluetooth information containing configuration.
From memory (wherein, which can be the memory module in independent memory or processor)
Middle reading initial pitch angle degree, and I/O port is set.Due to including a small memory module in CC2541 chips, pass through calling
OSAL interfaces are the read-write operation that can be achieved to memory module.The data write to memory module have the standard sitting posture (i.e. default
Angle threshold), some data such as system time.
Timer expiry function is perform Periodic Task, including the sitting posture data of collection and some other numbers
According to transmission and sitting position calibration method realization.The collection of sitting posture is by reading the acceleration in MPU6050 chips and angle speed
Spend the value realization of register.And sending for data can be by using the correlation in the sitting posture monitoring system protocol stack that TI is provided
Interface is realized.
Receiving terminal function is simple Profile ChangeCB, calls carry out execution order line wherein
(processCommand), the data packet of acquisition unpacked and is parsed.First determine whether data packet is correct, that is, determine
Whether packet header and bag tail are correct, judge that command word is how many if correct, enter different processing according to the difference of command word
In function, post analysis data and handle data.
Embodiment 2
Fig. 3 is sitting posture monitoring system structure diagram provided in an embodiment of the present invention, as shown in figure 3, sitting posture monitoring system
System 300 includes：Sensor 310, processor 320.
Sensor 310, for obtaining the sitting posture data of the first user.
Processor 320, handles the sitting posture data, generates the angle of sitting posture, and by the angle and default
Angle threshold is compared, and when the angle is not less than default angle threshold, generates alerting signal, the alerting signal is used
In instruction, first user adjusts sitting posture.
Further, the sitting posture data include：The acceleration of angular speed and X-direction, wherein, the X-axis and gravity
Direction is perpendicular.
Further, the sitting posture monitoring system further includes：Memory 330 and Transmit-Receive Unit 340.330 He of memory
Transmit-Receive Unit 340 can be integrated in processor 320 or independent module.
Memory 330, for according to time sequencing, being stored to the angle value.
Memory 330, for storing the sitting posture data of user, the model of memory can be W25Q16.
Transmit-Receive Unit 340, for the angle value of storage to be sent to terminal, so that second user passes through the terminal
Obtain the sitting posture state of the first user.
Further, the alerting signal includes：Audible reminder signal and vibration reminding signal.
Wherein, the model of sensor and processor may refer to the description in Fig. 1.
It should be noted that the processor 320 further includes bluetooth module (referring to the bluetooth module in Fig. 4).
Further, sitting posture monitoring system can also include：Power supply unit 350.Power supply unit 350 can include two
Module：Lithium battery and USB charging modules.
The lithium battery, can be used for supplying pyroelectric monitor system power supply for this.The lithium battery can be 3.7V lithium batteries.
USB charging modules, for charging for lithium battery.In the application, UN8HX chips can be used to charge for lithium battery.
Although above with general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.
Claims (8)
- A kind of 1. sitting posture monitoring method, it is characterised in that the described method includes：Obtain the sitting posture data of the first user；The sitting posture data are handled, generate the angle value of sitting posture；The angle value and default angle threshold are compared, when the angle value is not less than default angle threshold, Alerting signal is generated, the alerting signal is used to indicate that first user adjusts sitting posture.
- 2. sitting posture monitoring method according to claim 1, it is characterised in that the sitting posture data include：The acceleration of angular speed and X-direction, wherein, the X-axis and gravity direction are perpendicular.
- 3. sitting posture monitoring method according to claim 1, it is characterised in that the method further includes：According to time sequencing, the angle value is stored；The angle value of storage is sent to terminal, so that second user obtains the sitting posture shape of the first user by the terminal State.
- 4. sitting posture monitoring method according to claim 1, it is characterised in that the alerting signal includes：Sound prompting is believed Number and vibration reminding signal.
- 5. a kind of sitting posture monitors system, it is characterised in that the monitoring system includes：Sensor, the sensor are used for the sitting posture data for obtaining the first user；Processor, handles the sitting posture data, generates the angle value of sitting posture；The processor is additionally operable to, and the angle value and default angle threshold are compared, when the angle value is not less than During default angle threshold, alerting signal is generated, the alerting signal is used to indicate that first user adjusts sitting posture.
- 6. sitting posture according to claim 5 monitors system, it is characterised in that the sitting posture data include：The acceleration of angular speed and X-direction, wherein, the X-axis and gravity direction are perpendicular.
- 7. sitting posture according to claim 5 monitors system, it is characterised in that the sitting posture monitoring system further includes memory And Transmit-Receive Unit：The memory, for according to time sequencing, being stored to the angle value；The Transmit-Receive Unit, for the angle value of storage to be sent to terminal, so that second user is obtained by the terminal Take the sitting posture state of the first user.
- 8. sitting posture according to claim 5 monitors system, it is characterised in that the alerting signal includes：Sound prompting is believed Number and vibration reminding signal.
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