CN113096367A

CN113096367A - Sitting posture reminding method

Info

Publication number: CN113096367A
Application number: CN202010619804.5A
Authority: CN
Inventors: 任超
Original assignee: Suzhou Zhengtian Meijia Electronic Technology Co ltd
Current assignee: Suzhou Zhengtian Meijia Electronic Technology Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-07-09

Abstract

The embodiment of the specification provides a sitting posture reminding method. The method comprises the following steps: the processing circuit sends out a first measuring signal and records a first sending moment; the processing circuit records a first receiving moment when the first measuring signal is received; the processing circuit determines the alarm distance between the sitting posture reminding device and the target user according to the first sending time and the first receiving time and stores the alarm distance to the memory; the processing circuit controls to send a second measuring signal and records a second sending moment; the processing circuit records a second receiving moment when the second measuring signal is received; the processing circuit determines the real-time distance between the sitting posture reminding device and the target user according to the second sending time and the second receiving time; if the real-time distance is smaller than the warning distance, the processing circuit controls to send sitting posture reminding information. According to the method, the user does not need to manually set the alarm distance, the accuracy and the objectivity of the acquired alarm distance are ensured, and the correction of the wrong sitting posture of the user is realized.

Description

Sitting posture reminding method

Technical Field

The embodiment of the specification relates to the technical field of sitting posture correction, in particular to a sitting posture reminding method.

Background

In today's society, whether adults or adolescents, the length of time during which a sitting position is maintained throughout the day is increasing. Incorrect sitting posture can cause soreness and backache of the waist, affect mental conditions and even bone development for teenagers. In view of the importance of a correct sitting posture, it is often necessary to correct the user's sitting posture by means of other means.

Currently, there is a class of devices that correct the user's sitting posture without making physical contact with the user's body. In the device, after the user sets the alarm distance, the distance between the device and the user is detected in real time when the user keeps sitting, and the user is reminded that the current sitting posture is incorrect when the detected distance is smaller than the alarm distance. However, in the above-mentioned apparatus, the set alarm distance is manually set by the user according to self-feeling, and the user may not be able to accurately convert the distance between the apparatus and the user in the correct sitting posture into a specific value, so that the alarm distance has a certain difference from the distance between the apparatus and the user in the normal sitting posture in practical application. The device can not accurately judge whether the user is in a normal sitting posture or not based on the wrong alarm distance, and can not realize the effect of correcting the sitting posture of the user. Therefore, a method for reminding a user of a wrong sitting posture is needed.

Disclosure of Invention

The purpose of the embodiments of the present specification is to provide a sitting posture reminding method, so as to solve the problem of how to remind a user of a wrong sitting posture.

In order to solve the above technical problem, an embodiment of the present disclosure provides a sitting posture reminding method, where an execution subject of the method is a sitting posture reminding device; the sitting posture reminding device comprises a shell, and a measuring signal transmitter, a measuring signal receiver, a memory, a warning module and a processing circuit which are arranged in the shell; the method comprises the following steps:

the processing circuit controls the measuring signal transmitter to transmit a first measuring signal and records a first transmitting moment of the first measuring signal;

the processing circuit records a first receiving moment when the measuring signal receiver receives the reflected first measuring signal;

the processing circuit determines an alarm distance between the sitting posture reminding device and a target user according to the first sending time and the first receiving time;

the processing circuit stores the alert distance to the memory;

the processing circuit controls the measuring signal transmitter to send a second measuring signal and records a second sending moment of sending the second measuring signal;

the processing circuit records a second receiving moment when the measuring signal receiver receives the reflected second measuring signal;

the processing circuit determines the real-time distance between the sitting posture reminding device and the target user according to the second sending time and the second receiving time;

if the real-time distance is smaller than the warning distance, the processing circuit controls the warning module to send sitting posture reminding information to the target user; the sitting posture reminding information is used for reminding the target user that the target user is not in a normal sitting posture.

The embodiment of the specification also provides a sitting posture reminding device, which comprises a shell, a measuring signal transmitter, a measuring signal receiver, a memory, a warning module and a processing circuit, wherein the measuring signal transmitter, the measuring signal receiver, the memory, the warning module and the processing circuit are arranged in the shell; the measuring signal transmitter is used for transmitting a measuring signal; the measuring signal receiver is used for receiving the reflected measuring signal; the memory is used for storing the alarm distance, the time of sending the measuring signal and the time of receiving the reflected measuring signal; the warning module is used for sending sitting posture reminding information to the target user; the sitting posture reminding information is used for reminding the target user that the target user is not in a normal sitting posture; the processing circuit is used for controlling the measuring signal transmitter to transmit a measuring signal and recording a first transmission moment of transmitting the first measuring signal, recording a moment of receiving a reflected measuring signal by the measuring signal receiver, determining an alarm distance and/or a real-time distance between the sitting posture reminding device and a target user according to the moment of transmitting the measuring signal and the moment of receiving the reflected measuring signal, storing the alarm distance, the moment of transmitting the measuring signal and the moment of receiving the reflected measuring signal in a memory, comparing the real-time distance with the alarm distance, and controlling the warning module to transmit sitting posture reminding information to the target user when the real-time distance is smaller than the alarm distance.

According to the technical scheme provided by the embodiment of the specification, the alarm distance between the target user and the user when the target user keeps the normal sitting posture is obtained in advance, and therefore the alarm distance can be used as a standard for judging whether the user keeps the normal sitting posture. If the real-time distance between the user and the second measurement signal is smaller than the warning distance in the subsequent measurement process, the user may have the situations of head lowering, shoulder collapse and the like, and therefore the warning module can be used for sending sitting posture reminding information to the user, and the user sitting posture can be corrected. By the method, the user does not need to manually set the alarm distance, and the accuracy and objectivity of the acquired alarm distance are ensured by directly acquiring the distance between the user and the user in the normal sitting posture, so that the wrong sitting posture of the user can be accurately identified, and the sitting posture of the user can be corrected.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the specification, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a block diagram of a sitting posture reminder according to an embodiment of the present disclosure;

FIG. 2 is a flowchart illustrating a sitting posture reminding method according to an embodiment of the present disclosure;

FIG. 3 is a diagram illustrating an exemplary method for obtaining an alert distance according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram illustrating a user being reminded according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present specification without any creative effort shall fall within the protection scope of the present specification.

In order to better understand the sitting posture reminding method in the embodiment of the present specification, a sitting posture reminding device in the embodiment of the present specification will be described first. As shown in fig. 1, the sitting posture reminding device 100 includes a housing, and a measuring signal transmitter 110, a measuring signal receiver 120, a memory 130, an alarm module 140 and a processing circuit 150 disposed in the housing.

The measurement signal transmitter 110 may transmit a measurement signal. The measurement signal may be at least one of ultrasonic or infrared. The measuring signal can be contacted with an object and reflected after being transmitted, so that the distance between the object contacted with the measuring signal and the sitting posture reminding device can be determined according to the time of receiving the transmitted measuring signal and the time of sending the measuring signal.

The measurement signal receiver 120 may be configured to receive the reflected measurement signal. When the measurement signal is at least one of ultrasonic waves or infrared rays, the measurement signal receiver 120 may also be at least one of an ultrasonic receiver and an infrared receiver, respectively. The measurement signal receiver, upon receiving the reflected measurement signal, may generate a corresponding electrical signal, so that the processing circuit 150 may obtain a time when the measurement signal receiver receives the reflected measurement signal.

It should be noted that, in practical applications, the measurement signal transmitter 110 and the measurement signal receiver 120 may be different components or may be the same component. In the case where the measurement signal transmitter 110 and the measurement signal receiver 120 are the same component, the component may receive the measurement signal sent by itself after transmitting the measurement signal. The existence of the measuring signal transmitter 110 and the measuring signal receiver 120 is not limited in practical applications.

The memory 130, the memory 130 may be implemented in any suitable manner. The memory 130 may be a read-only memory 130, a mechanical hard disk, a solid state disk, a usb flash disk, or the like, and preferably, the memory may be an EEPROM (electrically erasable and programmable read only memory). The memory 130 may be used to store the alert distance, the time at which the measurement signal was sent and the time at which the reflected measurement signal was received.

The warning module 140 may include at least one of a speaker, a light generator, a vibrator, and a display. The warning module 140 may be configured to send a sitting posture reminding message, where the sitting posture reminding message is used to remind the target user that the target user is not in a normal sitting posture. Correspondingly, the sitting posture reminding information can be at least one of voice reminding information, light reminding information, vibration reminding information, character reminding information and image reminding information.

The processing circuit 150 may be implemented in any suitable manner. For example, the processing Circuit 150 may take the form of, for example, a microprocessor or processor and a computer-readable medium that stores computer-readable program code (e.g., software or firmware) executable by the (micro) processor, logic gates, switches, an Application Specific Integrated Circuit (ASIC), a programmable logic controller, an embedded microcontroller, and so forth.

The processing circuit 150 may be configured to control the measurement signal transmitter 110 to transmit a measurement signal and record a time when the measurement signal is transmitted, further be configured to record a time when the measurement signal receiver 120 receives a reflected measurement signal, further be configured to determine an alarm distance and/or a real-time distance between the sitting posture reminding device and a target user according to the time when the measurement signal is transmitted and the time when the reflected measurement signal is received, further be configured to store the alarm distance, the time when the measurement signal is transmitted, and the time when the reflected measurement signal is received in the memory 130, further be configured to compare the real-time distance with the alarm distance, and control the alarm module 140 to transmit sitting posture reminding information to the target user when the real-time distance is smaller than the alarm distance.

Based on the sitting posture reminding device 100, an embodiment of a sitting posture reminding method in the embodiment of the present disclosure is described below with reference to fig. 2. The main execution body of the method is the sitting posture reminding device 100. The sitting posture reminding method comprises the following specific steps.

S210: the processing circuit controls the measuring signal transmitter to transmit a first measuring signal and records a first transmitting moment when the first measuring signal is transmitted.

The first measurement signal may be a signal having a reflective property, that is, the first measurement signal may be reflected after contacting the object, so that the distance between the measurement signal emitter and the object can be obtained according to the transmission time of the first measurement signal. In some embodiments, the first measurement signal is a signal directed to the target user and can thus be used to measure the distance between the sitting posture reminder and the target user. Specifically, the first measurement signal may be a signal transmitted to the target user while the target user is kept in a normal sitting posture.

The target user is the object aimed at by the sitting posture reminding device, namely the user needing to keep the normal sitting posture. For example, in a specific application scenario, when the sitting posture reminding device is placed on a desktop, the target user is a user sitting in front of a desk. The sitting posture reminding device can remind and correct the sitting posture of the user by collecting and analyzing the distance between the sitting posture reminding device and the target user.

The normal sitting posture is a sitting posture which does not cause harm to the health of people. Generally, when the target user is in a normal sitting posture, the upper half of the body needs to be kept straight, that is, the neck, the chest and the waist need to be kept straight, and the sitting posture of the user is kept fixed, that is, the target user has a fixed distance from the sitting posture reminding device.

When the processing circuit controls the measurement signal transmitter to transmit the first measurement signal, a first transmission time at which the first measurement signal is transmitted is recorded at the same time, and specifically, the first transmission time can be stored in the memory. When the time for receiving the reflected first measurement signal is obtained subsequently, the transmission time of the first measurement signal can be calculated, so that the transmission distance of the first measurement signal is determined, and half of the distance is the distance between the sitting posture reminding device and the target user.

The first measurement signal may be at least one of ultrasonic waves and infrared rays. Because ultrasonic waves and infrared rays can emit after meeting objects, the distance between the sitting posture reminding device and a target user can be measured by utilizing the property.

The distance to the target user may be measured using ultrasound waves generated and emitted by an ultrasound generating component inside the sitting posture reminder device. The ultrasonic wave is reflected after contacting the target user and is received by an ultrasonic wave receiving component of the content of the sitting posture reminding device. The sitting posture reminding device determines the ultrasonic wave propagation time according to the ultrasonic wave transmitting time and the ultrasonic wave receiving time, and further can determine the distance between the sitting posture reminding device and a target user according to the propagation speed of the ultrasonic waves in the air.

The distance to the target user measured by infrared light may be generated by an infrared light emitting component of the sitting posture reminder device and emitting infrared light directed at the target user. The infrared ray has non-diffusibility during transmission, so that the infrared ray is not easy to refract in the transmission process, can be transmitted to the target user along a straight line, is reflected to the sitting posture reminding device along a transmission route after contacting the target user, and is received by the infrared ray receiving component in the sitting posture reminding device. The time of infrared ray transmission can be determined according to the time of transmitting the infrared ray and the time of receiving the infrared ray, and the distance between the sitting posture reminding device and a target user can be calculated by combining the speed of infrared ray transmission.

In practical applications, the distance may be measured by using one of ultrasonic waves and infrared rays, or the distance may be measured by using both the ultrasonic waves and the infrared rays to ensure the accuracy of the measurement result. In practical application, the measurement of the warning distance may also be completed in other manners according to the needs of practical situations, which are not described herein.

In some embodiments, the sitting posture reminder includes a measurement order detection module. The processing circuit controls the measuring signal transmitter to send out a first measuring signal, and the processing circuit controls the measuring signal transmitter to send out the first measuring signal under the condition that the measuring instruction detection module detects the alarm distance measuring instruction.

The warning distance measurement instruction is an instruction instructing the sitting posture prompting device to start measuring the warning distance to the target user. And after receiving the alarm distance measurement instruction, the sitting posture reminding device starts to measure the alarm distance between the sitting posture reminding device and the target user.

In some specific examples, the alert distance measurement instruction may be an instruction generated based on a preset measurement gesture. The preset measurement gesture may be a fixed gesture such as hand waving, fist making, etc. In the embodiment, the sitting posture reminding device is provided with a shooting component capable of acquiring gestures of a user, so that an image corresponding to a target user can be acquired in real time, whether the preset measurement gesture exists in the image is analyzed, if the preset measurement gesture is detected in the image, it is indicated that an alarm distance needs to be acquired, and an instruction for measuring the alarm distance between the target user and the sitting posture reminding device is executed.

In some specific examples, the alert distance measurement instruction may be an instruction generated based on a preset measurement voice. The sitting posture reminding device is characterized in that a voice acquisition module can be preset, and when the device is in an open state and the alarm distance is not stored, the voice acquisition module acquires external voice information in real time and judges whether preset measurement voice exists in the acquired voice information. For example, when the preset measurement voice is "start detection", after the user speaks "start detection", the reminding device judges that the preset measurement voice exists in the collected voices, and the alarm distance between the target user and the reminding device can be started to be measured.

In some specific examples, the alarm distance measurement instruction may also be generated based on a preset electrical signal. The preset electrical signal may be an electrical signal generated by a component inside the sitting posture prompting device, for example, a button is arranged on the sitting posture prompting device, and when the button is pressed, a fixed electrical signal is generated and transmitted to a chip of the sitting posture prompting device, and the chip starts to measure the alarm distance to the target user when receiving the fixed electrical signal. The preset electric signal may also be an electric signal automatically generated based on a program written in a chip of the sitting posture reminding device, for example, after the device is started, an instruction for generating the preset electric signal may be triggered, an alarm distance measuring instruction may be generated according to the preset electric signal, and an alarm distance between the target user and the device may be started to be measured.

It should be noted that the alarm distance measurement instruction may be an instruction generated by a single type of implementation manner, or may be generated in any of a plurality of different manners, which is not limited to this. The above examples are only for better illustration of the warning distance measurement command, and the warning distance measurement command is not limited. In practical application, the alarm distance measurement instruction may be generated in other corresponding manners according to specific situations, which are not described herein again.

In the practical application process, if the user does not know whether the device measures the warning distance when the sitting posture reminding device measures the warning distance, the user may still be in the wrong sitting posture at the moment, and the measured warning distance does not accord with the distance between the device and the target user when the target user maintains the normal sitting posture, or the target user does not maintain a fixed sitting posture, so that the warning distance cannot be obtained.

Thus, in some embodiments, the sitting posture reminder device may include a reminder module. After the sitting posture reminding device receives the alarm distance measurement instruction, the reminding module can be used for sending normal sitting posture reminding information to a user. The normal sitting posture prompt message can be used for prompting a user to maintain a normal sitting posture. The sitting posture prompting message may be a voice message prompting the user to maintain the sitting posture, for example, a sound of "start measurement, please keep the sitting posture" is sent to the user through a speaker of the sitting posture prompting device; the normal sitting posture prompting information can also be an image or a character for displaying 'start measuring and please keep normal sitting posture' on a display screen of the sitting posture prompting device. The specific method for reminding the user of keeping the normal sitting posture is not limited to the above examples, and is not described herein again.

The user is reminded by using the normal sitting posture prompt information, so that the user is ensured to be in the normal sitting posture state when the alarm distance is measured, the measured alarm distance is the distance between the sitting posture reminding device and the target user keeping the normal sitting posture, the progress of measuring the alarm distance is accelerated, and the use experience of the user is improved.

In some embodiments, the sitting posture reminder may include an angle adjustment module. The sitting posture reminding device can adjust the orientation angle of the sitting posture reminding device based on the angle adjusting module, and specifically, the orientation angle can be an included angle between a measuring signal sent by the sitting posture reminding device and a horizontal plane. For example, the sitting posture reminding device can comprise a main body and a base, and the main body and the base of the sitting posture reminding device can be connected through the angle adjusting module, so that when the sitting posture reminding device is placed on a desktop isoplanar based on the base, the angle between the main body and the base can be adjusted, and the main body has different orientation angles.

In the embodiment, the angle adjusting module can be adjusted to enable the sitting posture reminding device to measure the alarm distance between the sitting posture reminding device and the target user based on the detected angle. The detection angle may be directed to a detection location of a target user. The detection part is the part for determining the distance between the target user and the sitting posture reminding device. For example, when it is necessary to remind a target user of a poor posture such as a low head or a shoulder collapse, the head of the target user is largely deviated from the head position in a normal sitting posture. In this example, the detection site may be determined to be the head of the target user. When the warning distance is measured, the distance between the sitting posture prompting device and the head of the target user can be measured as the warning distance based on the detection angle.

Through adjusting the detection angle of the sitting posture reminding device during detection, the detection of the distance of the specific part of the target user can be realized, so that the requirement for the warning distance in practical application is met, and the use experience of the user is improved.

In some embodiments, the sitting posture reminder has an active state and an inactive state. The sitting posture reminding device in the non-working state is in a dormant state in order to save electric quantity, does not send out a measuring signal, and cannot receive an alarm distance measuring instruction. Therefore, a device switch can be arranged in the sitting posture reminding device, and the device switch can generate a device starting signal. And in a non-working state, if the sitting posture reminding device detects that a device switch generates a device starting signal, the sitting posture reminding device is converted into a working state. In the working state, the sitting posture prompting device can receive an alarm distance measuring instruction, so that the alarm distance between the sitting posture prompting device and the target user is measured.

The device activation signal may be an electrical signal generated by pressing a button after the button is provided on the device. By aiming at the working state and the non-working state of the sitting posture reminding device, the sitting posture reminding device can be in a dormant state when the sitting posture reminding device is not needed, so that the electric quantity consumption of the sitting posture reminding device is saved, and the standby time of the sitting posture reminding device is prolonged.

S220: the processing circuit records a first receiving moment when the measuring signal receiver receives the reflected first measuring signal.

The first measuring signal has a reflection property, so that the first measuring signal can be reflected after contacting an object, and part of the first measuring signal can return along the original path, so that the first measuring signal can be detected and received by the signal receiver, and further the first measuring signal is used for completing the measurement of the alarm distance in the subsequent step.

After the reflected first measurement signal is received by the measurement signal receiver, a specific electrical signal may be generated and transmitted to the processing circuitry. The processing circuit may use the time at which the electrical signal is generated as the first reception time at which the reflected first measurement signal is received, so that the calculation of the alert distance can be realized in a subsequent step.

Specifically, in the case that the first measurement signal is directed to the target user, the signal received by the measurement signal receiver may be a signal reflected by the first measurement signal after contacting the target user.

S230: and the processing circuit determines the alarm distance between the sitting posture reminding device and the target user according to the first sending time and the first receiving time.

The alarm distance is the distance between the target user who keeps the normal sitting posture and the distance measured by the sitting posture reminding device. In order to avoid the lack of objectivity and accuracy when the user manually sets the warning distance, the distance between the sitting posture prompting device and the target user when the user keeps the normal sitting posture can be automatically measured by the sitting posture prompting device as the warning distance.

The specific method for calculating the alarm distance may refer to the description in step S210, and is not described herein again.

In some embodiments, to ensure that the measured alarm distance is the distance between the sitting posture reminding device and the target user keeping the sitting posture, the processing circuit may control the measurement signal transmitter to send out the first measurement signal every preset measurement period, for example, to obtain the distance between the sitting posture reminding device and the target user at a frequency of obtaining the distance 10 times per second, and determine the distance corresponding to each preset measurement period as the candidate alarm distance according to the reflected first measurement signal received by the measurement signal receiver. After the candidate alarm distances corresponding to the measurement time periods are obtained, if it is detected that the candidate alarm distances of the continuous preset measurement number are the same, indicating that the current posture of the user does not change, the user is currently in a fixed sitting posture, and the candidate alarm distances can be used as alarm distances.

If the candidate alarm distances of the continuous preset measurement number are different from each other, it is indicated that the target user does not maintain a fixed posture, and one of the candidate alarm distances cannot be directly used as the alarm distance. In this case, the time length for measuring the candidate warning distances may be extended, and the comparison process may be continuously maintained until the candidate warning distances of the preset number of consecutive measurements are the same. To illustrate with a specific example, assume that the preset measurement period is 0.1 second and the preset number of measurements is 25. After the sitting posture reminding device receives the alarm distance measuring instruction, the candidate alarm distance between the sitting posture reminding device and the target user is measured to be 35 cm, and then the distance between the sitting posture reminding device and the target user is continuously obtained according to the preset measuring frequency. However, in the second, the obtained distance between the sitting posture prompting device and the target user is 40 centimeters, the difference exists between the obtained distance and the previous candidate alarm distance, the number of the continuous same candidate alarm distances is only 20, and the requirement of the preset measurement number is not met. However, the distance between the sitting posture reminding device and the target user is 40 cm from the second to the fourth fifth second, which indicates that the user may not be adjusted to be in a normal sitting posture before, and the distance between the reminding device and the user should be 40 cm when the user keeps in the normal sitting posture, so that the alarm distance can be determined more accurately.

In the embodiment, in order to avoid that the measured distance is different from the candidate warning distance due to slight jitter of the user during the measurement process, a distance maintaining range may be preset, and the measured distance is considered to maintain the candidate warning distance when the difference between the measured distance and the candidate warning distance is not greater than the distance maintaining range.

For example, under the condition that the measured candidate alarm distance is 35 centimeters and the distance maintaining range is 2 centimeters, if it is detected that the distance between the sitting posture prompting device and the target user is 33 centimeters within the preset measurement period, the influence may be caused by slight shake of the user, and it can still be considered that the user still keeps a normal sitting posture currently, and the candidate alarm distance does not need to be determined again, so that the requirement in practical application is met better, and the use experience of the user is improved.

In some embodiments, the processing circuit may further control the measurement signal transmitter to emit the first measurement signal every preset measurement period during the alert distance acquisition period. The preset alarm distance acquisition time period is a time period for measuring an alarm distance. And taking the distance between the user and the distance acquired by transmitting the first measurement signal each time in the alarm distance acquisition time period as a candidate alarm distance, and acquiring a plurality of candidate alarm distances after the alarm distance acquisition time period is finished. The average value of the acquired candidate alert distances may be found as the alert distance.

To illustrate with a specific example, the alert distance acquisition period may be 6 seconds, and correspondingly, the preset measurement period may be 0.1 second, within the 6 seconds, the first measurement signal is transmitted every 0.1 second and the corresponding candidate alert distance is acquired, and 60 candidate alert distances are acquired in total. Assuming that 20 of the 60 candidate alert distances are 34 cm, 20 are 38 cm and 20 are 39 cm, the average value of the candidate alert distances is 37 cm, i.e. the alert distance is determined to be 37 cm.

In some embodiments, if the measurement signal receiver does not receive the reflected first measurement signal within a preset measurement time period after the measurement signal transmitter sends the first measurement signal, the target user or other obstruction may not be present in front of the measurement signal transmitter, and it may be determined that there is no object in front of the sitting posture reminding device, and there is no candidate alarm distance corresponding to the preset measurement time period.

In order to prevent the user from shaking and the influence of other obstacles on the warning distance, in the above embodiment, if the reflected first measurement signal is not received within a certain preset measurement period, and after the reflected first measurement signal is received within a plurality of subsequent preset measurement periods, the reflected first measurement signal is not received within the preset measurement periods again, the validity of the first measurement signal received within the middle plurality of preset measurement periods needs to be determined. For example, the number of valid signals may be preset, and if the number of the plurality of preset measurement periods is not less than the number of valid signals, it is determined that the candidate alarm distances respectively acquired in the plurality of preset measurement periods are valid; in contrast, if the number of the preset measurement periods is less than the number of the valid signals, the reflected first measurement signals received in the preset measurement periods may be the first measurement signals received due to the influence of other obstacles, may not be valid signals for determining the alert distance to the user, and the candidate alert distances corresponding to the preset measurement periods may not be considered in calculating the alert distance.

In some embodiments, the sitting posture reminding device can store a limit distance value. If the candidate warning distance cannot be acquired by the sitting posture reminding device within the warning distance acquisition time period, or the average value obtained by using the acquired candidate warning distance is larger than the limit distance value, the limit distance value can be used as the warning distance.

For example, the limit value may be set to 50 cm, and when the user is not sitting in front of the sitting posture prompting device, the measured warning distance may be the distance between the sitting posture prompting device and the wall in front of the sitting posture prompting device, so that the distance between the sitting posture prompting device and the user is necessarily larger than the warning distance after the user sits. Therefore, the warning distance can be set to 50 cm according to the limit value, thereby reducing the influence of the sitting user on the user.

In some embodiments, after the alarm distance is measured, the target user may be informed of the alarm distance, so that the target user specifies a specific alarm distance. The specific way of informing the target user may be, for example, informing through voice broadcasting, display screen displaying, and the like, which is not described herein in detail.

In real life, even if the user keeps a normal sitting posture, the body inevitably swings back and forth with small amplitude. If the sitting posture reminding information is sent to the target user strictly when the real-time distance is smaller than the warning distance, the user may receive the sitting posture reminding information if the user moves forward slightly, so that great interference is caused to the user. Therefore, the alarm distance can be adjusted according to the requirements of actual conditions.

In some embodiments, the sitting posture prompting device has a preset sensitivity stored therein. The preset sensitivity may be a specific ratio or a specific distance value. The processing circuit is capable of adjusting an alert distance to an actual alert distance based on the preset sensitivity such that the actual alert distance is less than the alert distance. The magnitude of the preset sensitivity determines the magnitude of the reduction of the alert distance. And after the actual alarm distance is obtained, comparing the detected real-time distance with the actual alarm distance, and sending sitting posture reminding information to a target user under the condition that the real-time distance is smaller than the actual alarm distance.

To illustrate with a specific example, when the preset sensitivity is a specific ratio, it is assumed that the preset sensitivity is 10%. After the alarm distance is measured to be 40 cm, the alarm distance may be reduced by 10%, that is, the alarm distance is adjusted to an actual alarm distance of 36 cm by using the preset sensitivity. When the user is in a sitting posture, if the real-time distance measured by the sitting posture reminding device is 37 centimeters, namely the real-time distance is smaller than the alarm distance but larger than the actual alarm distance, the user is not sent sitting posture reminding information. Because the amplitude change of the real-time distance is smaller than the alarm distance, the real-time distance is probably caused by slight swing of the body of the user, the normal sitting posture is not greatly influenced, and the sitting posture reminding information can not be sent to the target user.

In another specific example, when the preset sensitivity is a specific distance value, the magnitude of the preset sensitivity does not change due to the magnitude of the alarm distance. And if the preset sensitivity is 5 cm, when the alarm distance is measured to be 40 cm, adjusting the alarm distance by using the preset sensitivity to obtain an actual alarm distance of 35 cm. And when the measured alarm distance is 30 cm, adjusting the alarm distance by using the preset sensitivity to obtain an actual alarm distance of 25 cm.

The application of the sensitivity is not limited to the above examples, and other ways for those skilled in the art to realize the sensitivity based on the embodiments of the present specification are within the scope of the present specification.

The alarm distance is reduced to the actual alarm distance by utilizing the sensitivity, so that the sitting posture reminding device takes the error caused by the normal swinging of the body of the user in the actual application into consideration, avoids the interference to the user when the user keeps the normal sitting posture, and improves the use experience of the user.

S240: the processing circuit stores the alert distance to a memory.

After the processing circuit obtains the alarm distance, the processing circuit can store the alarm distance into a memory, so that the real-time distance and the alarm distance can be compared conveniently after the real-time distance is obtained subsequently.

S250: the processing circuit controls the measuring signal transmitter to send out a second measuring signal and records a second sending moment of sending the second measuring signal.

The second measurement signal is used for measuring the real-time distance between the sitting posture reminding device and the target user in real time in the subsequent process, so that whether the user keeps a normal sitting posture or not is determined. The description that the processing circuit controls the measurement signal transmitter to send out the second measurement signal may refer to the description of sending out the first measurement signal in step S210, and is not repeated herein.

When the measuring signal transmitter emits a second measuring signal, a second emission time of the second measuring signal can likewise be recorded by the processing circuit. The specific method for recording the second sending time may refer to the description in step S210, and is not described herein again.

In some embodiments, the processing circuit may control the measurement signal emitter to emit a second measurement signal every preset detection period, and determine a real-time distance between the sitting posture prompting device and the target user corresponding to each preset detection period according to the reflected second measurement signal and the second measurement signal. The preset detection period may be an interval of acquiring the real-time distance stored in the memory in advance. For example, when the preset detection time interval is 0.1 second, the sitting posture reminding device detects the real-time distance between the sitting posture reminding device and the target user once every 0.1 second, so that the real-time monitoring of the sitting posture of the target user is ensured, and the effect of detecting the sitting posture of the user is improved.

In some embodiments, the sitting posture reminder may detect the real-time distance to the target user using ultrasound and/or infrared. The specific measurement method may refer to the description in step S210, and is not described herein again.

In some embodiments, the sitting posture prompting device can detect the real-time distance between the sitting posture prompting device and the target user based on the detection angle set when the alarm distance is detected. For a specific manner of detecting the real-time distance between the target user and the angle detection device, reference may be made to the description in step S210, and details are not repeated here.

S260: the processing circuit records a second receiving moment when the measuring signal receiver receives the reflected second measuring signal.

The second measuring signal has a reflection property, so that the second measuring signal can be reflected after contacting an object, and part of the second measuring signal can return along the original path, so that the second measuring signal can be detected and received by the signal receiver, and further the second measuring signal is used for completing the measurement of the real-time distance in the subsequent step.

After the reflected second measurement signal is received by the measurement signal receiver, a specific electrical signal may be generated and transmitted to the processing circuitry. The processing circuit may use the time at which the electrical signal is generated as a second reception time at which the reflected second measurement signal is received, thereby enabling calculation of the real-time distance in a subsequent step.

In particular, in case the second measurement signal is directed to the target user, the signal received by the measurement signal receiver may be a signal reflected by the second measurement signal after contacting the target user.

S270: and the processing circuit determines the real-time distance between the sitting posture reminding device and the target user according to the second sending time and the second receiving time.

The real-time distance is the distance between the target user and the measured sitting posture reminding device after the alarm distance is determined. The alarm distance determines the distance between the sitting posture reminding device and the target user when the target user keeps a normal sitting posture, so that whether the sitting posture of the user is deviated from the normal sitting posture or not can be judged by detecting the distance between the target user and the alarm distance in real time and comparing the distance with the alarm distance, and further whether the sitting posture of the user is normal or not can be judged, and the user is reminded when the sitting posture of the user is abnormal, so that the function of correcting the sitting posture is achieved.

For a specific method for determining the real-time distance by using the second sending time and the second receiving time, reference may be made to the description in step S210, and details are not repeated here.

If the processing circuit controls the measuring signal transmitter to transmit the second measuring signal every preset detection time interval, the processing circuit may receive the reflected second measuring signal according to the signal receiver in each preset detection time interval, and respectively determine the real-time distance corresponding to each preset detection time interval. And comparing the obtained real-time distance with the alarm distance in each preset detection period so as to determine whether the user continuously keeps a normal sitting posture state.

S280: and if the real-time distance is smaller than the warning distance, the processing circuit controls the warning module to send sitting posture reminding information to the target user.

If the real-time distance is smaller than the warning distance, the fact that the distance between the sitting posture reminding device and the target user is reduced is indicated, the user may have bad sitting postures of lowering head, bending down, leaning forward and the like, so that the body, particularly a detection part in the body, is close to the sitting posture reminding device, and the real-time distance measured by the sitting posture reminding device is smaller than the warning distance. In this case, it is necessary to remind the user that the user is not currently in a normal sitting position.

Since the real-time distance is greater than the warning distance, which may be caused by the user leaning back to relax or getting out of the seat, the user is generally not in the wrong sitting posture when the real-time distance is greater than the warning distance, and no sitting posture reminding information needs to be sent to the user.

The method for reminding the user that the user is not in the normal sitting posture can be that the processing circuit controls the warning module to send a sitting posture reminding message to the target user. The sitting posture reminding information is used for reminding the target user that the target user is not in a normal sitting posture.

When the warning module includes a speaker, the sitting posture prompting information may be voice prompting information, for example, the speaker component arranged in the sitting posture prompting device generates corresponding voice prompting information, so as to broadcast a voice signal similar to "please notice, not in normal sitting posture" to the user. If the alarm distance is reported to the user in the previous step, when the measured real-time distance is smaller than the alarm distance, the alarm distance can be directly reported to the user in a voice mode to remind the user that the user is not in a normal sitting posture currently, and therefore the sitting posture of the target user can be corrected.

When the warning module comprises the light generator, the sitting posture reminding information can also be light reminding information. Specifically, a light emitting component can be arranged in the sitting posture reminding device, and when the detected real-time distance is smaller than the warning distance, the light emitting component is powered to enable the light emitting component to generate light so as to achieve a warning effect. After the user looks up that the sitting posture reminding device shines, the user can easily understand that the current sitting posture is incorrect, so that the user can adjust the self sitting posture in time, and further the correction of the sitting posture of the target user is realized.

When the warning module comprises a vibrator, the sitting posture reminding information can also be vibration reminding information. The vibrator can be, for example, a vibration motor arranged in the sitting posture reminding device, and when the detected real-time distance is smaller than the alarm distance, the vibration motor is started to vibrate the sitting posture reminding device at a certain frequency. After the user feels that the sitting posture reminding device shakes, the user can understand that the current sitting posture is incorrect, and needs to adjust the self-sitting posture to realize the correction of the sitting posture.

When the warning module comprises a display, the sitting posture reminding information can also be character reminding information or image reminding information displayed on the display, for example, characters which please notice that the user is not in a normal sitting posture at present or images with incorrect sitting postures displayed on the display are directly displayed on the display, so that the user can understand that the user is not in the normal sitting posture after seeing the information on the display, and then the sitting posture of the user can be timely adjusted, and the sitting posture can be corrected.

In practical applications, the warning module may include only one of the speaker, the light generator, the vibrator and the display, or may be combined with any of the speaker, the light generator and the display, which is not limited thereto. Other warning manners implemented by those skilled in the art based on the sitting posture reminding method in the embodiments of the present disclosure are also within the scope of the present application, and are not described herein again.

A specific scenario example is used for illustration, and as shown in fig. 3, a schematic diagram of measuring an alarm distance by using the sitting posture prompting device is shown. The sitting posture reminding device is a device which is placed on a table top and has a certain orientation angle. In the corresponding example of fig. 3, the sitting posture prompting device is directed to the head of the user, i.e. the distance to the head of the user is detected. In fig. 3, the user maintains the normal sitting posture, so that the sitting posture reminding device can obtain the warning distance between the user and the user when the user keeps the normal sitting posture, namely the distance indicated by the dotted line in fig. 2. As shown in fig. 4, after the alarm distance is determined, the sitting posture prompting device detects the distance between the user and the sitting posture prompting device in real time, when the user has a poor sitting posture of bending down, the sitting posture prompting device detects that the distance between the user and the head of the user is smaller than the alarm distance, and then the user is judged not to be in the normal sitting posture at the moment, so that voice prompting information is sent to prompt the user not to be in the normal sitting posture at present, and therefore the sitting posture of the user is corrected.

According to the reminding method based on the user sitting posture and the introduction of the method embodiment and the scene example, under the condition that the reminding method based on the user sitting posture does not physically contact with the body of the user, the distance between the user and the user is monitored in real time after the warning distance between the user and the user is measured by the sitting posture reminding device, and warning is given to the user when the monitored distance is smaller than the warning distance, so that the user can keep the sitting posture. According to the method, the user does not need to manually set the alarm distance, the accuracy and the objectivity of the acquired alarm distance are ensured, the wrong sitting posture of the user can be accurately identified, and the sitting posture of the user can be corrected.

The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. From the above description of the embodiments, it is clear to those skilled in the art that the present specification can be implemented by software plus a necessary general hardware platform. Based on this understanding, the technical solutions of the present specification may be embodied in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a device to perform the methods described in the embodiments or some parts of the embodiments of the present specification.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

While the specification has been described with examples, those skilled in the art will appreciate that there are numerous variations and permutations of the specification that do not depart from the spirit of the specification, and it is intended that the appended claims include such variations and modifications that do not depart from the spirit of the specification.

Claims

1. A sitting posture reminding method is characterized in that the method is applied to a sitting posture reminding device; the sitting posture reminding device comprises a shell, and a measuring signal transmitter, a measuring signal receiver, a memory, a warning module and a processing circuit which are arranged in the shell; the method comprises the following steps:

the processing circuit stores the alert distance to the memory;

2. The method of claim 1, wherein the sitting posture reminder comprises a measurement order detection module; the processing circuit controls the measuring signal transmitter to send a first measuring signal and records a first sending moment of sending the first measuring signal, and the processing circuit comprises:

after the measurement instruction detection module detects an alarm distance measurement instruction, the processing circuit controls the measurement signal transmitter to transmit a first measurement signal and records a first transmission moment of the first measurement signal; the alert distance measurement instruction includes at least one of: the command generated based on the preset measurement gesture, the command generated based on the preset measurement voice, and the command realized based on the preset electric signal.

3. The method of claim 1, wherein the measurement signal transmitter comprises at least one of an ultrasonic transmitter and an infrared transmitter;

correspondingly, the measuring signal receiver comprises at least one of an ultrasonic transmitter and an infrared transmitter.

4. The method of claim 1, wherein the processing circuit controls the measurement signal transmitter to emit a first measurement signal, comprising:

the processing circuit controls the measuring signal transmitter to transmit a first measuring signal every preset measuring time interval and records a first transmitting moment corresponding to each preset measuring time interval;

correspondingly, the processing circuit records a first receiving time when the measurement signal receiver receives the reflected first measurement signal, and includes:

the processing circuit records a first receiving moment of a first measuring signal after the measuring signal receiver receives the reflection in each preset measuring time interval respectively;

the processing circuit determines an alarm distance between the sitting posture reminding device and a target user according to the first sending time and the first receiving time, and the method comprises the following steps:

the processing circuit respectively determines candidate alarm distances corresponding to each preset measurement time period according to a first sending time and a first receiving time corresponding to each preset measurement time period;

and if the candidate alarm distances of the continuous preset measurement number are the same, acquiring the candidate alarm distances as alarm distances.

5. The method of claim 1, wherein the sitting posture reminder device further comprises a reminder module; before the processing circuit controls the measurement signal transmitter to send out the first measurement signal, the method further includes:

the processing circuit sends normal sitting posture prompting information to the target user by using the prompting module; and the normal sitting posture prompt message is used for prompting the target user to maintain the normal sitting posture.

6. The method of claim 1, wherein said controlling said measurement signal transmitter to emit a second measurement signal and recording a second emission time at which the second measurement signal is emitted comprises:

the processing circuit controls the measuring signal transmitter to transmit a second measuring signal every preset detection time interval and records a second transmitting time of the second measuring signal;

correspondingly, the processing circuit records a second receiving time when the measurement signal receiver receives the reflected second measurement signal, and includes:

the processing circuit records a second receiving moment when the signal receiver receives the reflected second measuring signal in each preset detection time period respectively;

the processing circuit determines a real-time distance between the sitting posture prompting device and the target user according to the second sending time and the second receiving time, and the method comprises the following steps:

and the processing circuit determines the real-time distance between the sitting posture reminding device and the target user corresponding to each preset detection time interval according to the second sending time and the second receiving time.

7. The method of claim 1, wherein the sitting posture reminder comprises an angle adjustment module; the angle adjusting module is used for adjusting the orientation angles of the measuring signal transmitter and the measuring signal receiver; the processing circuit controls the measuring signal transmitter to send a first measuring signal and records a first sending moment of sending the first measuring signal, and the processing circuit comprises:

the processing circuit controls the measuring signal emitter to emit a first measuring signal corresponding to the detection angle and records a first emitting moment of the first measuring signal; the detection angle comprises an orientation angle pointing to a detection part of the target user;

correspondingly, the controlling the measurement signal transmitter to transmit the second measurement signal and record a second transmission time at which the second measurement signal is transmitted includes:

and controlling the measuring signal transmitter to transmit a second measuring signal corresponding to the detection angle and recording a second transmission moment of the second measuring signal.

8. The method of claim 1, wherein after determining the alert distance between the sitting posture reminder and the target user, further comprising:

the processing circuit adjusts the alarm distance to an actual alarm distance based on preset sensitivity; the actual alarm distance is smaller than the alarm distance;

the processing circuit controls the measuring signal transmitter to send a second measuring signal and records a second sending moment of sending the second measuring signal after storing the actual alarm distance into the memory;

if the real-time distance is smaller than the actual alarm distance, the processing circuit controls the warning module to send sitting posture reminding information to the target user; the sitting posture reminding information is used for reminding the target user that the target user is not in a normal sitting posture.

9. The method of claim 1, wherein the alert module comprises at least one of a speaker, a light generator, a vibrator, and a display; correspondingly, the sitting posture reminding information comprises at least one of voice reminding information, light reminding information, vibration reminding information, character reminding information and image reminding information.

10. The method of claim 1, wherein the sitting posture reminder device comprises a device switch; the processing circuit controls the measuring signal transmitter to send a first measuring signal and records a first sending moment of sending the first measuring signal, and the processing circuit comprises:

after the device switch generates a device start signal, the processing circuit controls the measuring signal transmitter to transmit a first measuring signal and records a first transmitting moment when the first measuring signal is transmitted.