CN105342624B - For detecting the equipment of motor behavior and method for detecting motor behavior - Google Patents

Abstract

The invention discloses a device for detecting motion behavior and a method for detecting motion behavior. The device includes an air pressure sensor unit, an air pressure difference calculation unit, a comparison unit, and a motion counting unit; the air pressure sensor unit is used to detect the air pressure value in real time following the user's movement and send the air pressure value to the air pressure difference calculation unit; the air pressure difference The calculation unit is used to calculate the absolute value of the difference between each air pressure value and the initial air pressure value between two adjacent initial air pressure values, obtain the maximum absolute value of the difference between two adjacent initial air pressure values and send it to the comparison Unit; comparison unit, for comparing the maximum difference absolute value and difference threshold, if the maximum difference absolute value ≥ difference threshold, then notify the motion counting unit to count; motion counting unit, for receiving the counting of the comparison unit After the notification, the number of exercises will be increased by one. The present invention provides a relatively general solution that can detect various motions.

Description

Device for detecting motor behavior and method for detecting motor behavior

technical field

The present invention relates to electronic equipment, and more particularly, to a device for detecting motion behavior and a method for detecting motion behavior.

Background technique

With the development of smart electronic devices, the detection of human motion behavior has become an important requirement. The existing motion detection methods are to set different detection methods for different motions, such as using proximity sensors or methods of contacting with the mobile phone screen Push-ups are detected and sit-ups are detected by using an accelerometer, but there is currently no general technical solution that can detect multiple movements.

And using the above method for motion detection needs to cooperate with complex algorithms, for example, it is necessary to calculate the change of pitch angle through a more complex algorithm to detect and record sit-ups, while detecting push-ups requires a proximity sensor or a method of contact with the screen. Therefore, the above method is difficult to apply to other small wearable devices such as smart bracelets or watches. In addition, for some motion detection, such as sit-up detection, if the result is to be more accurate, it is also necessary to accurately detect the user's body posture, which requires the use of devices such as gyroscopes, which requires high costs.

Contents of the invention

An object of the present invention is to provide a relatively general technical solution capable of detecting various motions.

According to a first aspect of the present invention, there is provided a device for detecting motion behavior, the device includes an air pressure sensor unit, an air pressure difference calculation unit, a comparison unit, and a motion counting unit; the air pressure sensor unit is used to follow The user's motion action detects the air pressure value in real time and sends the air pressure value to the air pressure difference calculation unit; the air pressure difference calculation unit is used to calculate each air pressure value between two adjacent initial air pressure values and the initial air pressure value The absolute value of the difference between the two adjacent initial air pressure values is obtained and sent to the comparison unit; the comparison unit is used to compare the absolute maximum difference with the difference threshold, If the maximum difference absolute value ≥ the difference threshold, notify the motion counting unit to count; the motion counting unit is configured to add one to the number of motions after receiving the counting notification from the comparison unit.

Preferably, the device is a wearable device.

Preferably, the device further comprises a display screen for displaying the exercise and/or a speaker for reporting the exercise.

Preferably, the device further includes a movement distance calculation unit; the air pressure sensor unit is also used to send the air pressure value to the movement distance calculation unit; the movement distance calculation unit is used to calculate the movement distance according to the movement type and The individual air pressure values calculate the total distance traveled.

Preferably, the device further includes a movement distance calculation unit; the air pressure sensor unit is also used to send the number of movements to the movement distance calculation unit after the measurement; the movement distance calculation unit is used to The number of times of exercise calculates the total distance of exercise.

Preferably, the device further includes a calorie calculation unit; the exercise distance calculation unit is also used to send the total distance of the exercise to the calorie calculation unit; the calorie calculation unit is used to , and the total distance of exercise to calculate the calories consumed during exercise.

Preferably, the device further includes a storage unit for storing the difference threshold, initial air pressure value, exercise type, and user weight.

Preferably, the air pressure sensor unit is also used to detect and obtain an initial air pressure value before counting starts.

Preferably, the device further includes a difference threshold calculation unit; the air pressure sensor unit is further configured to send the air pressure value to the difference threshold calculation unit before counting starts; the difference threshold calculation unit is configured to Before counting starts, calculate and obtain N maximum absolute difference values, and calculate an average value of the N maximum absolute difference values as the difference threshold, where 2≤N≤10.

According to the second aspect of the present invention, a method for detecting exercise behavior is provided, including the following steps: following the user's exercise action to detect the air pressure value in real time; calculating the difference between each air pressure value between two adjacent initial air pressure values The absolute value of the difference between the initial air pressure values, to obtain the absolute maximum difference between two adjacent initial air pressure values; compare the absolute maximum difference with the difference threshold, if the absolute maximum difference ≥ the difference threshold, it is judged that one exercise is completed.

The inventors of the present invention have found that in the prior art, there is no relatively general new technical solution that can detect various motions. Therefore, the technical tasks to be achieved or the technical problems to be solved by the present invention are never thought of or expected by those skilled in the art, so the present invention is a new technical solution.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 shows a block diagram of a first embodiment of the device for detecting motion behavior according to the present invention.

Fig. 2 shows a block diagram of a second embodiment of the device for detecting motion behavior of the present invention.

Fig. 3 shows a flowchart of an embodiment of the method for detecting motion behavior of the present invention.

Explanation of reference signs

Air pressure sensor unit 1, air pressure difference calculation unit 2, comparison unit 3, exercise counting unit 4, difference threshold calculation unit 5, storage unit 6, movement distance calculation unit 7, calorie calculation unit 8, display screen 9, speaker 10.

Detailed ways

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have different values.

It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

Referring to Fig. 1, it is the block diagram of the first embodiment of the device that the present invention is used to detect motion behavior, and this device comprises air pressure sensor unit 1, air pressure difference calculation unit 2, comparison unit 3, motion counting unit 4, difference value threshold Calculation unit 5 , storage unit 6 , motion distance calculation unit 7 , calorie calculation unit 8 , display screen 9 , speaker 10 .

The air pressure sensor unit 1 is used to detect the air pressure value in real time following the user's exercise action and send the air pressure value to the air pressure difference calculation unit 2, and to send the number of movements to the exercise distance calculation unit 7 after the measurement is completed.

The air pressure difference calculation unit 2 is used to calculate the absolute value of the difference between each air pressure value and the initial air pressure value between two adjacent initial air pressure values, and obtain the maximum difference absolute value between two adjacent initial air pressure values value and sent to comparison unit 3;

The comparison unit 3 is used to compare the maximum difference absolute value and the difference threshold, if the maximum difference absolute value ≥ difference threshold, then notify the motion counting unit 4 to count;

The motion counting unit 4 is configured to add one to the number of motions after receiving the counting notification from the comparison unit 3 .

Wherein, the display screen 9 is used for displaying the exercise situation, and the loudspeaker 10 is used for reporting the exercise situation, so as to issue prompts to encourage the user. The storage unit 6 is used to store data such as difference threshold, initial air pressure value, exercise type, user weight, etc. for other units to call. The device is preferably a wearable device, such as a smart watch or a wristband.

The present invention uses a device with a built-in air pressure sensor for motion detection, fixes the device on the user so that the device can move following the user's movement, activates the sensor to obtain the air pressure value during the user's motion, and performs periodic motions such as push-ups and sit-ups Squatting, squatting, pull-ups, etc. will cause the relative position of the user to change in the vertical direction. The air pressure value measured by the sensor changes periodically during the exercise. By detecting this periodic change, the user's exercise can be detected.

The air pressure value of the preparation posture before the exercise starts is the initial air pressure value. Taking sit-ups as an example, the posture when lying flat is the preparation posture. Fix the device on the arm, and first measure the air pressure value when lying flat as the initial air pressure Each time the air pressure sensor detects an initial air pressure value, it represents the start of a sit-up action. When the body sits up, the position of the upper arm will rise compared to the lying position, which will cause the The air pressure value decreases, calculate the absolute value of the difference between each air pressure value before the next initial air pressure value and the initial air pressure value, and then obtain the maximum absolute value of the difference, the maximum absolute value of the difference refers to the difference in the absolute value of Maximum value; compare the absolute value of the maximum difference with the threshold of the difference, if the absolute value of the maximum difference ≥ the threshold of the difference, it is considered that a sit-up is completed, and the exercise counting unit 4 is notified to add one to the number of exercises. Take push-ups as an example. The posture when pushing up is the preparation posture. Fix the device on the upper arm. First, measure the air pressure value when pushing up as the initial air pressure value. Every time the air pressure sensor detects an initial air pressure value, it means the start of a push-up. Action, when the body is propped up, the position of the upper arm will be lower than that of the lying position, which will cause the air pressure value detected by the air pressure sensor to increase, and calculate the air pressure value and the initial air pressure before the next initial air pressure value appears The difference absolute value of value, get maximum difference absolute value and difference threshold value and compare, if maximum difference value absolute value ≥ difference value threshold value, then consider to finish a push-up, notify motion counting unit 4 to add one to the number of times of exercise.

Due to differences in the heights of different users, as well as differences in exercise habits and frequencies during the actual detection process, the difference threshold may need to be dynamically adjusted according to different users. The device can provide a correction mode for correcting the initial air pressure value and the difference threshold. In the correction mode, the initial air pressure value is first measured, and then N times of exercise are performed; for each exercise, the difference between each air pressure value in the exercise and the initial air pressure value is calculated, and the maximum difference between the N exercises is calculated. The average of the values is used as the difference threshold. Among them, 2≤N≤10 is preferable.

The device of the present invention utilizes the existing air pressure sensor unit 1 in the device for motion detection, and can record the number of motions without complicated algorithms. The barometric pressure sensor unit 1 is also used to send the exercise times to the exercise distance calculation unit 7 after the measurement, and the exercise distance calculation unit 7 is used to calculate the total exercise distance according to the exercise type and the exercise times. The calorie calculation unit 8 may further calculate the calories consumed during the exercise process according to the user's body weight, exercise type, and total exercise distance.

Referring to Fig. 2, it is a circuit block diagram of the second embodiment of the device for detecting exercise behavior according to the present invention, the difference from the first embodiment is that the air pressure sensor unit 1 sends the air pressure value to the exercise distance calculation unit 7 , the movement distance calculation unit 7 calculates the total movement distance according to the movement type and each air pressure value after the measurement.

The calculation method of the first embodiment only calculates the movement distance of the action that reaches the difference threshold, and ignores the movement distance caused by some actions that are not in place, so the calculation result is not as accurate as the second embodiment, but the algorithm of the first embodiment will For simplicity, it is only necessary to calculate the distance × times of a single movement.

The invention also discloses a method for detecting motion behavior, comprising the following steps:

1) Real-time detection of air pressure value following the user's movement;

2) Calculate the absolute value of the difference between each air pressure value between two adjacent initial air pressure values and the initial air pressure value, and obtain the maximum difference absolute value between the two adjacent initial air pressure values;

3) Comparing the absolute maximum difference with a difference threshold, and if the absolute maximum difference ≥ the difference threshold, it is determined that one exercise is completed.

Below according to accompanying drawing 3, illustrate the process that the present invention detects motion behavior, comprises the following steps:

Fixing a device with a built-in air pressure sensor on the user's body enables the device to move with the user's movement;

Detect whether the expected number of exercises is set; if the number of exercises is not set, it will prompt that the number of exercises needs to be set, otherwise proceed to the next step;

Detect whether the initial air pressure value has been set, if the initial air pressure value has not been set, then detect the initial air pressure value, otherwise proceed to the next step;

Detect whether the difference threshold has been set, if the difference threshold has been set, motion detection will start, if the difference threshold has not been set, then enter the correction mode and carry out the difference threshold setting step; the difference threshold setting step includes: Perform N times of exercise; for each exercise, calculate the difference between each air pressure value in the exercise and the initial air pressure value, and calculate the average value of the maximum absolute value of the difference in N times of exercise as the difference threshold, preferably 2 ≤N≤10.

Start motion detection: collect sensor data, detect whether the absolute value of the maximum difference is ≥ the threshold of the difference, if the absolute value of the maximum difference is ≥ the threshold of the difference, add one to the number of motions, and return to the next motion detection until the motion The number of times to reach the target number of exercises.

Those skilled in the art should understand that each unit of the present invention can be realized in various ways, including the way of software programs or hardware circuits. When implemented in the way of hardware circuits, each unit can be realized by independent hardware circuits. Or combined and implemented in one hardware circuit.

The present invention can be a system, method and/or computer program product. A computer program product may include a computer readable storage medium having computer readable program instructions thereon for causing a processor to implement various aspects of the present invention.

Aspects of the present invention are described herein with reference to block diagrams and flowchart illustrations of apparatuses and methods according to embodiments of the invention. It should be understood that the blocks of the block diagrams and flowcharts, and combinations of blocks, can be implemented by computer-readable program instructions.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, a portion of a program segment, or an instruction that includes one or more Executable instructions. In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. It should also be noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by a dedicated hardware-based system that performs the specified function or action , or may be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that implementation by means of hardware, implementation by means of software, and implementation by a combination of software and hardware are all equivalent.

Having described various embodiments of the present invention, the foregoing description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and alterations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principle of each embodiment, practical application or technical improvement in the market, or to enable other ordinary skilled in the art to understand each embodiment disclosed herein. The scope of the invention is defined by the appended claims.

Claims (10)

1. a kind of equipment for detecting motor behavior, it is characterised in that the equipment includes baroceptor unit (1), gas Pressure difference computing unit (2), comparing unit (3), movement counting unit (4)；

The baroceptor unit (1), the athletic performance for following user detect atmospheric pressure value and send the air pressure in real time It is worth to air pressure difference computational unit (2)；

The air pressure difference computational unit (2), for calculate each atmospheric pressure value between the adjacent value of initial gas pressure twice with it is described The absolute difference of initial gas pressure value, obtains the maximum difference absolute value between the adjacent value of initial gas pressure twice and is sent to ratio Compared with unit (3)；

The comparing unit (3), for the maximum difference absolute value and difference threshold, if the maximum difference is absolute Value >=the difference threshold, then notify that the movement counting unit (4) is counted；

The movement counting unit (4), for adding times of exercise after the counting notification of the comparing unit (3) is received One.

2. equipment according to claim 1, it is characterised in that the equipment is wearable device.

3. equipment according to claim 1, it is characterised in that the equipment further includes the display for showing motion conditions Shield (9) and/or the loudspeaker (10) for reporting motion conditions.

4. equipment according to claim 1, it is characterised in that the equipment further includes move distance computing unit (7)；

The baroceptor unit (1) is additionally operable to send the atmospheric pressure value to the move distance computing unit (7)；

The move distance computing unit (7) is used to calculate movement according to type of sports and each atmospheric pressure value after measurement Total distance.

5. equipment according to claim 1, it is characterised in that the equipment further includes move distance computing unit (7)；

The baroceptor unit (1), which is additionally operable to send the times of exercise to the move distance after measurement, to be calculated Unit (7)；

The move distance computing unit (7) is used for the total distance that movement is calculated according to type of sports and the times of exercise.

6. according to 4 or 5 any one of them equipment of claim, it is characterised in that the equipment further includes calorie calculation list First (8)；

The move distance computing unit (7) is additionally operable to send the total distance of the movement to the calorie calculation unit (8)；

The calorie calculation unit (8), which is used to be calculated according to the total distance of user's weight, type of sports and movement, to be moved through The calorie of journey consumption.

7. equipment according to claim 6, it is characterised in that the equipment further includes storage unit (6), for storing State difference threshold, initial gas pressure value, type of sports and user's weight.

8. equipment according to claim 1, it is characterised in that the baroceptor unit (1) is additionally operable to open in counting Detection obtains initial gas pressure value before beginning.

9. equipment according to claim 8, it is characterised in that the equipment further includes difference threshold computing unit (5)；

The baroceptor unit (1) is additionally operable to send the atmospheric pressure value before counting starts to difference threshold calculating list First (5)；

The difference threshold computing unit (5), obtains N number of maximum difference absolute value, meter for being calculated before counting starts The average value of N number of maximum difference absolute value is calculated as the difference threshold, wherein 2≤N≤10.

A kind of 10. method for detecting motor behavior, it is characterised in that comprise the following steps：

The athletic performance of user is followed to detect atmospheric pressure value in real time；

The absolute difference of each atmospheric pressure value and the initial gas pressure value between the adjacent value of initial gas pressure twice is calculated, is obtained Maximum difference absolute value between the adjacent value of initial gas pressure twice；

Compare the maximum difference absolute value and difference threshold, if the maximum difference absolute value >=difference threshold, Judge to complete once to move.