CN204303137U - A kind of body posture monitoring terminal and system - Google Patents

Abstract

The utility model provides a body posture monitoring terminal and a system. The body posture monitoring terminal includes: a sensor, a micro-control chip, a vibrator, a wireless communication module, a power supply and a power selection switch; the sensor, the vibrator, the wireless The communication module and the power selection switch are respectively connected to the micro-control chip, and the power selection switch is connected to the power supply; the sensor measures the human body posture data, and sends the human body posture data to the The micro-control chip, the micro-control chip sends the posture angle data obtained according to the human body posture data to the base station and the service terminal through the wireless communication module; the vibrator receives the micro-control According to the alarm command of the chip, a vibration prompt is performed according to the alarm command. The body posture monitoring terminal of the utility model has the advantages of low cost, small size, low power consumption, and portability, and can independently realize posture monitoring and reminding without being attached to an intelligent mobile terminal.

Description

A body posture monitoring terminal and system

technical field

The utility model relates to a body posture monitoring technology, in particular to a body posture monitoring terminal and system.

Background technique

The ancients said: "Stand like a pine tree, sit like a clock", but this principle is a bit difficult for modern people. In daily work, study and life, few people care about their sitting or walking posture, most of them care about how comfortable they are. A survey on sitting posture showed that only 18.2% of the respondents actually sat upright. Poor sitting or walking posture is not only unsightly, but also seriously affects our health. It is not difficult to see that many elementary school students are short-sighted or hunchbacked at a young age; many office workers are suffering from occupational diseases caused by prolonged sitting and improper sitting posture: shoulder and back muscle strain, shoulder and back pain or stiffness and other discomfort symptoms, waist muscle strain, There may even be dizziness and, in severe cases, the inability to stand normally. In addition, bad sitting posture can cause problems such as hunchback and chest. Bad walking postures such as hunchback, chest in the chest, and bending over will prevent the muscles of the whole body from relaxing, and the brain and body will not receive proper oxygen supply.

In view of the above problems, the Chinese patent application number 201220696942.4 discloses a sitting posture reminder, which adopts a vacuum-sealed mercury switch (gravity induction switch) and a diaphragm pressure sensor as a detection sensor, and the measurement accuracy and accuracy are not It is very high, and the three sensors are placed on the ear, back and waist respectively, so it is not very convenient to wear; the Chinese patent application number 201220523425.7 discloses a U-shaped sitting posture reminder based on infrared induction. The screw is connected with the desktop, and when the user lowers his head is sensed by infrared rays, a reminder sound will be issued to remind the user of the sitting position. From a structural point of view, the scope of application is limited; from a functional point of view, when the sitting posture is correct and the head is lowered, misjudgment will occur; the Chinese patent application number 201220151692.6 discloses a camera sitting posture correction device, and the image recognition technology of this device is accurate. Locate the positions and relative distances of eyes, books, and desktops, remind you to pay attention to your sitting posture if you are close, and remind you to change your posture or rest after a long time in the correct posture; the Chinese patent application number 201220378175.2 discloses a Structurally designed pole-type sitting posture reminder, which is inconvenient to use and has limited scope of application; Chinese patent application number 201220162238.0 discloses a backpack-type sitting posture reminder device, which judges the sitting posture according to the left and right swings of mercury beads Bad, the accuracy is not high, and this kind of piggyback is unsightly and inconvenient. The Chinese patent with application number 201410019465.1 discloses a sedentary reminder and sitting posture detection device based on smart mobile devices. The device collects data through pressure sensors, and transmits the data to smart terminals through Bluetooth, and the smart mobile terminals perform data analysis. Processing and sedentary reminder, by analyzing the pressure difference of the sensors distributed in different positions to detect the user's body posture, on the one hand, using the pressure difference of multiple sensors to detect the body posture is not very accurate, limited by the number of sensors, but also makes the The function of the cover device is only limited to the monitoring of the sitting posture, and the monitoring of the walking posture cannot be realized, so the scope of application is limited. In addition, there are other sitting posture reminders to correct seats, desk lamps, etc., but these are not suitable for office workers.

At present, most of the ear-mounted sitting posture reminders sold in the domestic market are hung on the ears. Through the built-in gravity sensor and the principle of electronic balance, when the head is tilted back and forth, an alarm will sound immediately. It is a bit heavy on the ears, and if the head is slightly angled, it will alarm, causing the user to pay attention to the posture of his head at all times, which is easy to cause distraction. The giraffe posture reminder in the prior art detects the body posture through a built-in gyroscope, and transmits the body posture data to the mobile phone for processing and analysis through Bluetooth. After detecting a bad sitting posture, the mobile phone controls the posture reminder to emit vibrations. Because the gyroscope will drift with the increase of working hours, resulting in inaccurate measurement; and it is only for users with mobile phones, not suitable for elementary school students who basically do not use mobile phones.

Although the LUMOback and Lumo Lift sitting posture reminders launched in foreign markets can detect bad postures of users, they are relatively expensive, and the applications of the two are only compatible with the iOS operating system, so it is difficult to fully promote them.

Through the above analysis, it can be seen that the existing sitting position reminder device also has the following disadvantages:

1) The accuracy of sitting posture detection is not very high, and it is inconvenient to wear and use;

2) The scope of use and objects of use are limited;

3) Most of the voice reminders are used when the sitting posture is bad. When students are in a quiet classroom or office workers are in a quiet office, the sitting posture reminder sound will appear very abrupt;

4) The price is more expensive;

5) Most of them are attached to smart mobile terminals to realize body posture data processing and analysis and reminders when sitting posture is bad.

Utility model content

The utility model provides a body posture monitoring terminal and system, which can reduce the cost, reduce the size, reduce power consumption, and independently realize the posture monitoring and reminding function without being attached to an intelligent mobile terminal.

In order to achieve the above object, the utility model provides a body posture monitoring terminal, which is connected to a base station and a service terminal. The body posture monitoring terminal includes: a sensor, a micro-control chip, a vibrator, a wireless communication module, a power supply and power selection switch;

The sensor, vibrator, wireless communication module and power selection switch are respectively connected to the micro-control chip, and the power selection switch is connected to the power supply;

The sensor measures the human body posture data, and sends the human body posture data to the micro-control chip, and the micro-control chip sends the posture angle data obtained according to the human body posture data through the wireless communication module For the base station and the service terminal; the vibrator receives an alarm command from the micro-control chip to perform vibration prompts, that is, the vibrator performs vibration prompts according to the control of the micro-control chip.

In one embodiment, the power selection switch includes: USB power supply gear, lithium battery power supply gear and power off gear, the USB power supply gear is connected to the first USB interface, and the lithium battery power supply gear bit to connect a rechargeable lithium battery.

In one embodiment, the body posture monitoring terminal further includes: an LED light for displaying the status of the terminal, connected to the micro control chip.

In one embodiment, the wireless communication module includes: a GPRS module and a radio frequency transmission module; the GPRS is connected to the service terminal through TCP to send attitude angle data to the service terminal; the radio frequency transmission module is connected to The radio frequency receiving module of the base station is used to send attitude angle data to the base station.

In one embodiment, the sensor is a MEMS nine-axis inertial sensor, which is connected to the micro-control chip through an IIC bus.

In one embodiment, the GPRS module is cross-connected with the RXD and TXD of the microcontroller chip through its own RXD and TXD.

In an embodiment, the body posture monitoring terminal can be installed on the chest, neck, back or shoulder of the human body.

In one embodiment, the first USB interface is a mini USB interface.

In order to achieve the above purpose, the utility model provides a body posture monitoring system, the body posture monitoring system includes: a service terminal, a base station and the above-mentioned body posture monitoring terminal;

The base station includes: a microcontroller, a radio frequency receiving module, a serial port to USB module, and a second USB interface. The radio frequency receiving module and the serial port to USB module are respectively connected to the microcontroller, and the second USB The interface is connected to the serial port to USB module;

The radio frequency sending module of the body posture monitoring terminal is connected to the radio frequency receiving module for sending attitude angle data to the base station;

The base station is connected to the service terminal through the second USB interface; the GPRS module of the body posture monitoring terminal is connected to the service terminal.

The beneficial effects of the utility model are:

The body posture monitoring terminal of the utility model has the advantages of low cost, small size, low power consumption, and portability, and can independently realize posture monitoring and reminding without being attached to an intelligent mobile terminal.

The body posture monitoring terminal of the utility model adopts a nine-axis inertial sensor to realize the complementary advantages of acceleration, angular velocity and magnetometer. Regardless of static or dynamic, a more accurate posture angle can be obtained, thereby laying a good foundation for monitoring bad sitting or walking postures. Foundation.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the structural representation of the body attitude monitoring terminal of the present utility model;

FIG. 2 is a schematic structural diagram of a base station of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in FIG. 1 , the present invention provides a body posture monitoring terminal, which is connected to a base station and a service terminal. The body posture monitoring terminal includes: a sensor, a micro-control chip, a vibrator, a wireless communication module, a power supply and a power selection switch.

The sensor, vibrator, wireless communication module and power selection switch are respectively connected to the micro-control chip, the power selection switch is connected to the power supply, and the power supply supplies power to the body posture monitoring terminal through the power selection switch.

The sensor can obtain human body posture data (raw sensor data information, including: the user's raw acceleration, angular velocity and magnetometer data, etc.), and send the human body posture data to the micro control chip (Micro Control UnitMCU). In one embodiment, the sensor is a MEMS nine-axis inertial sensor, which is connected to the micro-control chip through the IIC bus.

After the micro-control chip corrects the human body posture data, filters and preprocesses it, and then uses the posture calculation algorithm to process and analyze to obtain stable posture angle data information.

The micro-control chip can compare the attitude angle data obtained above with the preset threshold, and when it detects that the user's body attitude angle data exceeds the preset threshold, it will send an alarm command to the vibrator, and the vibrator receives the alarm command , and remind the user to correct their bad sitting or walking posture through vibration.

When the micro-control chip detects that the user has been sitting for a long time or the posture angle has not changed or changed very little for a long time, it will also send an alarm command to the vibrator. The vibrator receives the alarm command and reminds the user to get up and move or change the current situation pose.

The micro-control chip obtains the attitude angle data information according to the human body attitude data, compares the attitude angle data with the preset threshold, and detects the length of time when the user is sitting or the attitude angle is a well-known technology in the art, and will not be repeated here. The models of micro-control chips that can realize the above-mentioned data processing include STM32F407, etc., and the utility model is not limited thereto.

The micro-control chip can also send the attitude angle data information obtained above to the base station and the service terminal respectively through the wireless communication module.

In one embodiment, the power selection switch includes three gears: a USB power supply gear, a lithium battery power supply gear and a power-off gear, the USB power supply gear is connected to a first USB interface, and the lithium battery power supply gear is connected to a first USB interface. Rechargeable lithium battery. The power supply can be cut off through the power-off gear, and the power supply can be supplied through the USB interface through the first USB interface. The first USB interface can be a mini USB interface, and the rechargeable lithium battery uses a custom-made small-volume battery. To obtain the 3.3v voltage required by the microcontroller, it is necessary to perform voltage processing on the usb5v power supply voltage or the voltage of the lithium battery. When the battery voltage is detected to be too low, the lithium battery can be charged through the USB interface.

In one embodiment, the wireless communication module in FIG. 1 includes: a GPRS module and a radio frequency sending module. GPRS module connects service terminal by TCP mode, is used for sending attitude angle data to service terminal; The radio frequency receiving module (the wireless radio frequency sending module of described body posture monitoring terminal can be used supportingly with described radio frequency receiving module of radio frequency sending module connection base station ) for sending attitude angle data to the base station. The GPRS module with TCP/IP protocol stack can be selected to avoid the complexity of system debugging and testing.

Since the serial port level of the GPRS module and the level of the micro-control chip are both TTL levels, there is no need to go through level conversion, and the RXD, TXD of the GPRS module and the RXD, TXD of the micro-control chip can be directly cross-connected. The connection with the service terminal can be realized by sending a series of AT commands to the GPRS module through the serial port of the micro-control chip. After the communication link is established, the body posture monitoring terminal and the service terminal can communicate with each other. The body posture monitoring terminal is equipped with a radio frequency sending module, which communicates with the radio frequency receiving module inserted in the base station on the computer, and realizes interactive man-machine control by sending the user's motion information collected by the body posture monitoring terminal.

In one embodiment, the body posture monitoring terminal further includes: an LED light for displaying the status of the terminal, connected to a micro-control chip.

The body posture monitoring terminal can be placed on the chest, neck, back or shoulders, and is structurally designed to be close to the above-mentioned parts of the user, so that the measured posture angle data can truly and accurately reflect the posture of the user. When the body posture is improper and the body posture angle exceeds the set threshold, the micro vibrator vibrates to remind, and the set reminder threshold is different depending on the placement position.

It should be noted that before using the body posture monitoring terminal, the user needs to stand still or sit for a certain period of time to initialize and calibrate the body posture monitoring terminal. The computer judges the position of the sensor according to the received posture information within a certain period of time position, and write the corresponding threshold to the terminal. According to the characteristics of the acceleration and angular velocity data of the sensor at the moment of standing, sitting, changing from sitting to standing, and the moment of changing from standing to sitting, it can distinguish between sitting and standing and the switching between the two actions. When it is judged that the user is in a sitting state, it will open Timing, when more than two hours, the user's posture is still sitting, then drive the vibrator to remind the user to get up and move. When it is detected that the user's posture angle does not change or changes very little within half an hour, the vibrator is also driven to remind the user to change the sitting posture. The above initialization calibration is a commonly used technical means in the field, and will not be repeated here.

An embodiment of the present invention provides a body posture monitoring system, which includes: a service terminal, a base station, and the body posture monitoring terminal shown in FIG. 1 .

As shown in FIG. 2 , the base station includes: a microcontroller, a radio frequency receiving module, a serial port to USB module, and a second USB interface. The radio frequency receiving module and the serial port to USB module are respectively connected to the microcontroller, and the second USB interface is connected to the serial port to USB module.

The radio frequency sending module of the body posture monitoring terminal is connected to the radio frequency receiving module of the base station, and through the radio frequency sending module, the body posture monitoring terminal can send posture angle data to the base station.

The base station is connected to the service terminal through the second USB interface, and can send the posture angle data obtained from the body posture monitoring terminal to the service terminal. The GPRS module of the body attitude monitoring terminal can also be connected to the service terminal, and directly send attitude angle data to the service terminal.

The service terminal can store posture angle data, and can also display the user's sitting, standing, walking, exercise time and the number of bad posture occurrences within a certain period of time in the form of bar charts and pie charts.

The body posture monitoring system composed of the body posture monitoring terminal, the base station and the service terminal can realize close-range monitoring and remote monitoring.

In the utility model, specific examples have been applied to explain the principle and implementation of the utility model, and the explanations of the above examples are only used to help understand the method of the utility model and its core idea; meanwhile, for those of ordinary skill in the art According to the idea of the present utility model, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be construed as a limitation of the present utility model.

Claims (9)

1. a body posture monitoring terminal, connects a base station and a service terminal, it is characterized in that, described body posture monitoring terminal comprises: sensor, microcontroller chip, vibrator, wireless communication module, power supply and power selection switch;

Described sensor, vibrator, wireless communication module and power selection switch are connected to described microcontroller chip respectively, and described power selection switch is connected to described power supply;

Described sensor measurement human body attitude data, and described human body attitude data are sent to described microcontroller chip, the attitude angle data obtained according to described human body attitude data is sent to described base station and described service terminal by described wireless communication module by described microcontroller chip; The alarm command that described vibrator receives described microcontroller chip carries out vibration prompt.

2. body posture monitoring terminal according to claim 1, it is characterized in that, described power selection switch comprises, and: USB powers gear, lithium battery power supply gear and power-off gear, described USB power gear connect one first USB interface, described lithium battery power supply gear connects a chargeable lithium cell.

3. body posture monitoring terminal according to claim 1, is characterized in that, described body posture monitoring terminal also comprises: for the LED of display terminal state, the microcontroller chip described in connection.

4. body posture monitoring terminal according to claim 1, is characterized in that, described wireless communication module comprises: GPRS module and radio frequency sending module; Described GPRS Connection Service terminal, for sending attitude angle data to described service terminal; Described radio frequency sending module connects the Receiver Module of described base station, for sending attitude angle data to described base station.

5. body posture monitoring terminal according to claim 1, is characterized in that, described sensor is MEMS nine axle inertial sensor, the microcontroller chip described in being connected by iic bus.

6. body posture monitoring terminal according to claim 4, is characterized in that, described GPRS module is by RXD and TXD of self and RXD, TXD interconnection of described microcontroller chip.

7. body posture monitoring terminal according to claim 1, is characterized in that, described body posture monitoring terminal is arranged on the chest of human body, neck, back or shoulder.

8. body posture monitoring terminal according to claim 2, is characterized in that, the first described USB interface adopts mini USB interface.

9. a body posture monitoring system, described body posture monitoring system comprises: the body posture monitoring terminal according to any one of service terminal, base station and claim 1-8;

Described base station comprises: microcontroller, Receiver Module, serial port transform USB module, secondary USB interface, described Receiver Module and serial port transform USB module connect described microcontroller respectively, the serial port transform USB module described in described secondary USB interface connects;

The Receiver Module described in the connection of radio frequency sending module of described body posture monitoring terminal, for sending attitude angle data to described base station;

Described base station connects described service terminal by described secondary USB interface; The GPRS module of described body posture monitoring terminal connects described service terminal.