CN114504207A

CN114504207A - Intelligent seat and method for detecting sitting posture of user

Info

Publication number: CN114504207A
Application number: CN202210366827.9A
Authority: CN
Inventors: 何彪胜
Original assignee: Chipsea Technologies Shenzhen Co Ltd
Current assignee: Chipsea Technologies Shenzhen Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-05-17

Abstract

The application provides a method of intelligence seat and detection user position of sitting, wherein, intelligence seat, including seat support and chair frame, intelligence seat still includes: the sitting posture detection device is fixedly arranged on the chair frame and comprises a plurality of distance sensors which are arranged at intervals in the same horizontal direction of the chair frame, and the distance sensors are configured to measure the distance between the distance sensors and a user so as to obtain a plurality of distance values; the processor is electrically connected with the sitting posture detection device and is configured to acquire a difference value between any two distance values, and if the difference value is within a first preset range, the posture of the user is determined to be correct; and if the difference value is not within the first preset range, determining that the posture of the user is incorrect. This application embodiment judges through a plurality of distance sensor's difference whether the user is towards dead ahead, and then can monitor user's position of sitting.

Description

Intelligent seat and method for detecting sitting posture of user

Technical Field

The application relates to the technical field of electronics, in particular to an intelligent seat and a method for detecting sitting posture of a user.

Background

When children and teenagers write homework or have a class, the sitting posture has great influence on the body development of the children and the teenagers; long term, unreasonable sitting postures can cause physical development deformities, such as spinal curvature, kyphosis, myopia and the like, which slightly affect the personal image of adults and may cause disability, so that monitoring and correcting the sitting postures of children and teenagers are very necessary.

However, current sitting posture monitoring techniques include embedding a flexible pressure, piezoelectric or optical fiber pressure sensor on a cushion of a seat, recognizing a sitting posture through pressure distribution, and the like; or the elastic sheet is arranged at a proper position below the seat cushion, and after the sitting posture is deviated, the elastic sheet is disconnected to cause the buzzer to alarm for reminding, and the like. The sensor in the method has high cost and complex installation structure, the signal processing circuit and algorithm are more complex, and the accuracy is easily influenced by the structure; the latter is too simple to continuously monitor sitting posture changes.

Disclosure of Invention

The application provides an intelligent seat and a method for detecting the sitting posture of a user.

In a first aspect, the present application provides a smart chair, including a chair seat and a chair frame, the smart chair further includes:

a sitting posture detection device fixedly mounted to the chair frame, the sitting posture detection device comprising a plurality of distance sensors arranged at intervals in the same horizontal direction, the plurality of distance sensors being configured to measure distances to users to obtain a plurality of distance values;

a processor electrically connected to the sitting posture detection device and configured to obtain a difference between any two of the distance values, and determine that the posture of the user is correct if the difference is within a first preset range; and if the difference value is not within the first preset range, determining that the posture of the user is incorrect.

In some embodiments, the plurality of distance sensors includes at least a first distance sensor and a second distance sensor, the first and second distance sensors configured to measure the same body part of the user, the first distance sensor measuring a first distance, the second distance sensor measuring a second distance;

the processor is further configured to obtain a difference between the first distance and the second distance, and determine that the posture of the user is correct if the difference between the first distance and the second distance is within the first preset range; and if the difference value of the first distance and the second distance is not within the first preset range, determining that the posture of the user is incorrect.

In some embodiments, the sitting posture detection device further comprises a third distance sensor, the third distance sensor not being in the same horizontal direction as the first distance sensor, the third distance sensor measuring a third distance;

the processor is further configured to obtain a difference between the third distance and the first distance, and determine that the user's posture is incorrect if the difference between the third distance and the first distance is not within a second preset range.

In some embodiments, the sitting posture detection device further comprises a fourth distance sensor and a fifth distance sensor arranged in the same vertical direction, the fourth distance sensor being configured to measure a fourth distance to the user, the fifth distance sensor being configured to measure a fifth distance to the user;

the processor is further configured to obtain a difference between the fifth distance and the fourth distance, and determine that the user's posture is incorrect if the difference between the fifth distance and the fourth distance is not within a third preset range; otherwise, the posture of the user is determined to be correct.

In some embodiments, the sitting posture detection device further comprises a sixth distance sensor disposed along the vertical direction, wherein the fourth distance sensor is configured to measure a fourth distance from the first body part of the user, the fifth distance sensor is configured to measure a fifth distance from the second body part of the user, and the sixth distance sensor is configured to measure a sixth distance from the third body part of the user;

the processor is further configured to determine that the user's posture is correct if the fourth distance is greater than the fifth distance and the sixth distance, respectively, and to determine that the user's posture is incorrect otherwise.

In some embodiments, the smart chair further comprises a pressure sensor disposed at the seat for measuring a pressure value;

the processor is further configured to determine whether a user is on the smart seat according to the pressure value, turn on the sitting posture detection device if the user is determined to be on the smart seat, and turn off the sitting posture detection device if not.

In some embodiments, the sitting posture detecting device comprises a reminder alarm electrically connected with the processor, and the reminder alarm is controlled to give out a reminder when the processor determines that the posture of the user is incorrect.

In a second aspect, the present application provides a method for detecting a sitting posture of a user, applied to an intelligent seat, the intelligent seat includes a seat, a seat frame and a sitting posture detection device, the sitting posture detection device is fixedly installed on the seat frame, the sitting posture detection device includes a plurality of distance sensors arranged at intervals in the same horizontal direction of the seat frame, and the method includes:

measuring the distances between a plurality of distance sensors and a user to obtain a plurality of distance values;

obtaining a difference value between any two distance values, and if the difference value is within a first preset range, determining that the posture of the user is correct; and if the difference value is not within the first preset range, determining that the posture of the user is incorrect.

In some embodiments, the plurality of distance sensors includes at least a first distance sensor and a second distance sensor, the first and second distance sensors configured to measure the same body part of a user; measuring in real time the distances of a plurality of said distance sensors from a user's body part to obtain a plurality of distance values comprises:

measuring a first distance between the first distance sensor and a user;

measuring a second distance between the second distance sensor and the user;

obtaining a difference value between the first distance and the second distance, and if the difference value between the first distance and the second distance is within the first preset range, determining that the posture of the user is correct;

and if the difference value of the first distance and the second distance is not within the first preset range, determining that the posture of the user is incorrect.

In some embodiments, the sitting posture detection device further comprises a third distance sensor that is not in the same horizontal direction as the first distance sensor, the method further comprising:

measuring a third distance between the third distance sensor and the user;

and acquiring a difference value between the third distance and the first distance, and determining that the posture of the user is incorrect if the difference value between the third distance and the first distance is not within a second preset range.

In some embodiments, the method further comprises:

whether the intelligent seat has a user is detected through the sitting posture detection device, if the sitting posture detection device does not detect the user within a first preset time, the distance sensor detects whether the user exists at a second preset time interval.

The utility model provides an intelligent seat and method of detecting user's position of sitting, intelligent seat includes seat support and chair frame, still includes position of sitting detection device and treater, wherein, position of sitting detection device fixed mounting is in the chair frame, position of sitting detection device includes a plurality of distance sensor that the interval set up on the same horizontal direction of chair frame, a plurality of distance sensor are configured as the distance of real-time measurement and user's health position to obtain a plurality of distance values, whether the treater judges user's posture correctly according to a plurality of distance values. Based on this, the processor in the intelligent seat of this application can judge according to the distance value that the distance sensor measurement in same horizontal direction obtained, and when the difference of arbitrary two distance values is in first preset range, then the posture of user is correct, otherwise, then incorrect. The intelligent seat of this application embodiment is located preset within range through the difference of comparing a plurality of distance sensor to judge whether the user is in the gesture towards dead ahead, and then can monitor user's position of sitting. In addition, the detection method and the detection device of the intelligent seat are simple and reliable.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a first structural schematic diagram of a smart seat provided in an embodiment of the present application.

Fig. 2 is a second structural schematic diagram of the smart seat provided in the embodiment of the present application.

Fig. 3 is a scene schematic diagram of the smart seat provided in the embodiment of the present application.

Fig. 4 is a third structural schematic diagram of a smart seat provided in an embodiment of the present application.

Fig. 5 is a fourth structural schematic diagram of the smart seat provided in the embodiment of the present application.

Fig. 6 is a flowchart illustrating a method for detecting a sitting posture of a user according to an embodiment of the present application.

Fig. 7 is a schematic flow chart illustrating a first procedure of determining a sitting posture in the method for detecting a sitting posture of a user provided in fig. 6.

Fig. 8 is a schematic diagram illustrating a second flow of determining a sitting posture in the method for detecting a sitting posture of a user provided in fig. 6.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The existing sitting posture monitoring method has the problems that the cost of a sensor is high and the installation structure is complex, or the sitting posture monitoring method is too simple to continuously monitor the sitting posture change.

Therefore, in order to solve the above problems, the present application provides a smart seat and a method for detecting a sitting posture of a user. The present application will be further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1, fig. 1 is a schematic view of a first structure of an intelligent seat according to an embodiment of the present disclosure. The embodiment of the present application provides a smart chair 100, the smart chair 100 includes a chair seat 40 and a chair frame 30, and further includes a sitting posture detecting device 10 and a processor 20, wherein the sitting posture detecting device 10 is fixedly installed on the chair frame 30, the sitting posture detecting device 10 includes a plurality of distance sensors spaced apart in the same horizontal direction of the chair frame 30, and the plurality of distance sensors are configured to measure a distance from a body part of a user to obtain a plurality of distance values. The processor 20 is electrically connected to the sitting posture detecting device 10, and is configured to determine whether the posture of the user is correct according to the plurality of distance values, for example, the processor 20 obtains the distance values measured by the plurality of distance sensors, performs difference processing on the distance values measured by any two distance sensors to obtain a difference value, determines whether the posture of the user is correct according to the difference value, and determines that the posture of the user is correct if the difference value is within a first preset range; and if the difference value is not within the first preset range, determining that the posture of the user is incorrect. The embodiment of the application judges whether the posture of the user is correct or not by comparing the difference value between the distance values measured by any two distance sensors and is positioned in a first preset range, is simple and reliable, and can judge that the posture of the user is incorrect as long as the posture of the user, which is not towards the front, appears in any scene, so that the sitting posture of the user can be monitored, and the user is prevented from being influenced by body development under the condition that the posture of the user is incorrect for a long time.

The first preset range can be set according to the difference value of the distance values measured by any two distance sensors when the user consciously keeps a standard sitting posture.

Further, the processor can also perform difference processing on the obtained distance values respectively to obtain a plurality of difference values, and then judge whether the posture of the user is correct according to the difference values. If the plurality of difference values are all within a first preset range, determining that the posture of the user is correct; and if the at least one difference value is not within the first preset range, determining that the posture of the user is incorrect.

In some embodiments, considering that even if the user is in a correct sitting posture, because the same body part has a curve, the distance values measured by the adjacent distant distance sensors in the same horizontal direction are not the same, in order to make the determination result more accurate, the processor 20 performs difference processing on the distance values measured by any two adjacent distance sensors to obtain a difference value, and then determines whether the posture of the user is correct according to the difference value, and if the difference value is within a first preset range, determines that the posture of the user is correct; and if the difference value is not within the first preset range, determining that the posture of the user is incorrect. Therefore, the wrong judgment of two distance sensors with too far distance caused by the body curve of a person can be avoided.

Further, the distance values measured by any two distance sensors are subjected to difference processing to obtain a difference value, it can be understood that when the number of the distance sensors is greater than 2, the difference value between the distance values measured by any two distance sensors needs to be within a first preset range to determine that the posture of the user is correct, and if one difference value is not within the preset range, the posture of the user is determined to be incorrect.

In some embodiments, the plurality of distance sensors includes a first distance sensor 110 and a second distance sensor 120, the first distance sensor 110 and the second distance sensor 120 configured to measure the same body part of the user in real time, the first distance sensor 110 measuring a first distance D1 and the second distance sensor 120 measuring a second distance D2. If the difference value between the first distance D1 and the second distance D2 is within a first preset range, determining that the posture of the user is correct; if the difference between the first distance D1 and the second distance D2 is not within the first preset range, the posture of the user is determined to be incorrect.

For example, if the first distance sensor 110 and the second distance sensor 120 are used for measuring the shoulders of the user, the first distance sensor 110 may measure the left shoulder of the user, and the second distance sensor 120 may measure the right shoulder of the user. It is understood that the body parts measured by the first distance sensor 110 and the second distance sensor 120 may be set according to actual conditions, and are not particularly limited herein.

The position where the plurality of distance sensors are arranged in the same horizontal direction may be arbitrary, and for example, in some embodiments, the first distance sensor 110 and the second distance sensor 120 may be symmetrically arranged along the center line of the chair back. In some embodiments, the first distance sensor 110 and the second distance sensor 120 are disposed on either side of a centerline of the chair back, and the distance from the first distance sensor 110 to the centerline is less than the distance from the second distance sensor 120 to the centerline. In other embodiments, the first distance sensor 110 and the second distance sensor 120 are disposed on the same side of the centerline of the chair back. It should be noted that the positions of the plurality of distance sensors in the same horizontal direction may be set according to actual conditions, and it is only necessary to satisfy that the plurality of distance sensors are in the same horizontal direction.

Furthermore, in order to improve the accuracy of posture detection and better identify the current posture of a user, a plurality of distance sensors can be respectively arranged in a plurality of horizontal directions. For example, if a plurality of distance sensors are arranged in a first horizontal direction to measure the waist of the user and a plurality of distance sensors are additionally arranged in a second horizontal direction to measure the shoulders of the user, if the difference between the measured distance values of any two distance sensors arranged in the first horizontal direction is smaller than that of any two distance sensors arranged in the second horizontal direction, it can be determined that the user is not sitting right ahead and the body deviation degree is large.

With continuing reference to fig. 2 and 3, fig. 2 is a schematic diagram illustrating a second structure of the smart seat according to the embodiment of the present disclosure. Fig. 3 is a scene schematic diagram of the smart seat provided in the embodiment of the present application. The smart seat 100 provided in the embodiment of the present application may further include a third distance sensor 130, where the third distance sensor 130 is not in the same horizontal direction as the first distance sensor 110 or the second distance sensor 120, and the third distance sensor 130 measures a third distance D3. If the third distance sensor 130 and the first distance sensor 110 are arranged in different horizontal directions and the difference between the third distance D3 and the first distance D1 is not within the second preset range, it is determined that the posture of the user is incorrect. If the third distance sensor 130 and the second distance sensor 120 are arranged in different horizontal directions and the difference between the third distance D3 and the second distance D2 is not within the second preset range, it is determined that the posture of the user is incorrect.

Taking the example where the first distance sensor 110 and the second distance sensor 120 are configured to detect the shoulders of the user, and the third distance sensor 130 is configured to measure the waist of the user, if the third distance D3 is smaller than the first distance D1, that is, the difference between the third distance D3 and the first distance D1 is not within the second preset range, it is determined that the posture of the user is incorrect; if the third distance D3 is greater than the first distance D1 or the third distance D3 is equal to the first distance D1, it is determined that the user is in a correct posture, because the user's waist protrudes backward and the user's shoulder advances when the user's waist is bent or tilted forward, and it is determined that the user is bent or tilted forward when the distance from the user's waist to the smart seat is less than the distance from the user's shoulder to the smart seat.

Wherein, the second preset range is set by the difference between the distance values measured by the third distance sensor 130 and the first distance sensor 110 when the user consciously maintains the standard sitting posture. And judging through the second preset range to judge whether the user has the adverse condition of forward leaning or bow.

In this embodiment, after the difference between the first distance measured by the first distance sensor 110 and the second distance measured by the second distance sensor 120 is obtained and the posture of the user is determined, the difference between the third distance measured by the third distance sensor 130 and the first distance measured by the first distance sensor 110, or the difference between the third distance measured by the third distance sensor 130 and the second distance measured by the second distance sensor 120 may be further obtained to further determine the posture of the user. If the measurement results are all within the corresponding preset ranges, the posture of the user can be considered to be correct.

Referring to fig. 4, fig. 4 is a schematic view of a third structure of the smart seat according to the embodiment of the present disclosure. The smart seat 100 provided in the embodiment of the present application further includes a fourth distance sensor 140 and a fifth distance sensor 150, and the fourth distance sensor 140 and the fifth distance sensor 150 are arranged at intervals in the same vertical direction. The fourth distance sensor 140 is configured to measure a fourth distance to the user, and the fifth distance sensor 150 is configured to measure a fifth distance to the user in real time; if the difference value of the fifth distance and the fourth distance acquired by the processor is not within a third preset range, determining that the posture of the user is incorrect; otherwise, the posture of the user is determined to be correct. When the user has incorrect postures such as bow and waist, the distances from the body parts of the user to the chair frame in the vertical direction are different, and the trend that the body parts are farther away from the chair frame from the hip to the shoulder is basically presented, so that the posture of the user can be judged according to the fourth distance and the fifth distance measured in the same vertical direction.

The fourth distance sensor 140 is configured to measure a fourth distance to the upper back of the user, and the fifth distance sensor 150 is configured to measure a fifth distance to the shoulders of the user; if the difference value between the fifth distance and the fourth distance is not within the third preset range, determining that the posture of the user is incorrect, namely when the distance from the upper back of the user to the intelligent seat is smaller than the distance from the shoulder of the user to the intelligent seat, determining that the user has the condition of bowing or leaning forward; on the contrary, if the difference between the fifth distance and the fourth distance is within the third preset range, that is, the distance from the upper back of the user to the smart seat is greater than or equal to the distance from the shoulder of the user to the smart seat, it is determined that the posture of the user is correct. Whether the user bends over or humpback is judged according to the difference between the distance values detected by the fourth distance sensor 140 and the fifth distance sensor 150, and then whether the posture of the user is correct can be judged. On the basis, in some embodiments, the plurality of distance sensors arranged in the same horizontal direction can judge whether the user has a posture which is not directed to the right front, and judge whether the user has a forward tilt through the distance values detected by the fourth distance sensor 140 and the fifth distance sensor 150 arranged in the same vertical direction, so that whether the posture of the user is correct can be comprehensively detected.

Wherein, the third preset range is set by the difference between the distance values measured by the fourth distance sensor 140 and the fifth distance sensor 150 when the user consciously keeps the standard sitting posture. And the user can be more accurately judged whether the adverse conditions of forward leaning or bow waist occur or not by judging through the third preset range.

The plurality of distance sensors, the fourth distance sensor 140, and the fifth distance sensor 150, which are disposed in the same horizontal line, may detect any portion of the user, and are not limited to the above example.

In this embodiment, after obtaining the difference between the measured distance values of any two distance sensors in the same horizontal direction, the difference between the measured distance values of the fourth distance sensor and the fifth distance sensor arranged in the same vertical direction may be further obtained, so as to further determine the posture of the user. If the measurement results are all within the corresponding preset ranges, the posture of the user can be considered to be correct.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a fourth structure of the smart seat according to the embodiment of the present application. The sitting posture detecting device 10 in the smart seat 100 provided by the embodiment of the present application further includes a sixth distance sensor 160. The sixth distance sensor 160 may be disposed in the same vertical direction as the fourth and

fifth distance sensors

140 and 150, or may be disposed in a different vertical direction. Wherein the fourth distance sensor 140 is configured to measure a fourth distance to the first body part of the user in real time, the fifth distance sensor 150 is configured to measure a fifth distance to the second body part of the user in real time, and the sixth distance sensor 160 is configured to measure a sixth distance to the third body part of the user in real time. Further, the first body part may be a waist portion, and the second body part and the third body part may be body parts of the user other than the waist portion, respectively, wherein the second body part and the third body part are not the same body part. If the fourth distance is greater than the fifth distance and the sixth distance, the posture of the user is correct; otherwise, the user's posture is incorrect. When the user keeps the correct sitting posture, the waist part is farthest away from the chair frame compared with other body parts, so that whether the user keeps the correct sitting posture can be judged.

By respectively providing the fourth distance sensor 140, the fifth distance sensor 150, and the sixth distance sensor 160 in the vertical direction, different body parts of the user are respectively detected, different distance values are obtained, and by performing multi-position measurement, the sitting posture detection can be made more accurate. The embodiment of the application can rapidly judge whether the posture of the user is correct or not by comparing the relationship between the distance values, and the intelligent seat 100 is intelligent, simple and easy to implement.

On the basis, in order to improve the accuracy of posture detection and better identify the current posture of the user, any one of the distance sensors disposed in the same vertical direction may be disposed in the same horizontal direction as the plurality of distance sensors disposed in the horizontal direction, see fig. 5, for example, the fourth distance sensor 140, the fifth distance sensor 150, and the sixth distance sensor 160 are disposed in the same vertical direction, and meanwhile, the fourth distance sensor 140 is disposed in the same horizontal direction as the first distance sensor 110 and the second distance sensor 120. The distances to the same body part of the user are measured by the fourth distance sensor 140, the first distance sensor 110 and the second distance sensor 120 disposed in the same horizontal direction to obtain corresponding fourth distance, first distance and second distance, respectively. And different body parts of the user are measured by the fourth distance sensor 140 being disposed in the same vertical direction as the fifth and

sixth distance sensors

150 and 160 to obtain corresponding fourth, fifth and sixth distances, respectively. The fourth distance sensor can be arranged on the waist of the user, any two of the fourth distance, the first distance and the second distance are subjected to difference processing to obtain a first difference value, whether the posture of the user is correct or not is judged according to the first difference value, and if the first difference value is not within a first preset range, the posture of the user is determined to be incorrect; if the first difference is within the first preset range, further judgment is needed, that is, the fourth distance is compared with the fifth distance and the sixth distance, and if the fourth distance is greater than the fifth distance and the sixth distance, the posture of the user is determined to be correct. Whether the user has a posture which is not towards the right front can be judged by the fourth distance sensor 140, the first distance sensor 110 and the second distance sensor 120 which are arranged in the same horizontal direction, and whether the user has a bow or a humpback can be judged by the fourth distance sensor 140, the fifth distance sensor 150 and the sixth distance sensor 160 which are arranged in the same vertical direction, so that whether the posture of the user is correct can be detected in all directions.

In some embodiments, referring to fig. 2 again, the smart chair 100 may further include a pressure sensor 50, the pressure sensor 50 is disposed on the chair seat 40, the pressure sensor 50 is used for detecting whether the user is on the smart chair 100, if the user is detected to be on the smart chair 100, the sitting posture detecting device 10 is turned on, and if not, the sitting posture detecting device 10 is turned off.

In some embodiments, the sitting posture detecting apparatus 10 of the smart chair 100 detects whether there is a user in the smart chair, and if there is no user in the first preset time, any one of the distance sensors is allowed to detect at a second preset time interval, and the other distance sensors are in a standby state to reduce power consumption. When the distance sensor detects that the user is present for the second preset time, other components of the sitting posture detecting device 10 are turned on. When the distance sensor does not detect the user for a second preset time, the sitting posture detecting device 10 is turned off. The first preset time and the second preset time may be preset.

The smart seat 100 may further include a reminder alarm 60, the reminder alarm 60 is electrically connected to the processor 20, and when the processor 20 determines that the posture of the user is incorrect, the reminder alarm 60 issues a reminder. Reminding the user sitting on the chair to adjust the sitting posture until the sitting posture is correct. The reminder may also be turned off if the user does not want to be disturbed by the reminder. The reminder alarm 60 may be implemented as a speaker, the speaker being voice-set to select either voice or music alert signals according to personal preference. The loudspeaker and the plurality of reminding modes are arranged, so that a user can conveniently perform operation as required.

In some embodiments, the distance sensors may include infrared distance measuring sensors, ultrasonic distance sensors, optical distance sensors, and the like, which may be used for distance measurement. Taking the distance sensor as an infrared distance measuring sensor as an example, the infrared distance measuring sensor measures distance by using an infrared signal. When a user sits on the intelligent seat 100, infrared signals with specific frequency sent by the infrared signal emitting diodes of the infrared distance measuring sensors reach the neck and shoulders of the user, and then are reflected back to the infrared signal receiving diodes of the infrared distance measuring sensors, so that distance data of three positions are obtained after data calculation processing is carried out.

Referring to fig. 6, fig. 6 is a schematic flowchart illustrating a method for detecting a sitting posture of a user according to an embodiment of the present disclosure. The embodiment of the application provides a method for detecting sitting posture of a user, which is applied to an intelligent chair 100, wherein the intelligent chair 100 comprises a chair seat 40, a chair frame 30 and a sitting posture detection device 10, the sitting posture detection device 10 is fixedly installed on the chair frame 30, a plurality of distance sensors are arranged on the same horizontal direction of the chair frame 30 at intervals, and the specific flow of the method is as follows:

101. the distances between the distance sensors and the user are measured to obtain a plurality of distance values.

In the present embodiment, a plurality of distance sensors disposed in the same horizontal direction are used to measure the distance between the user and himself, i.e., the distance value.

102. Obtaining a difference value between any two distance values, and if the difference value is within a first preset range, determining that the posture of the user is correct; and if the difference value is not within the first preset range, determining that the posture of the user is incorrect.

In this embodiment, the first preset range may be set according to a difference between distance values measured by any two distance sensors when the user consciously maintains the standard sitting posture.

And judging whether the posture of the user is correct or not according to the plurality of distance values, wherein the obtained plurality of distance values are subjected to difference processing respectively to obtain a plurality of differences, and then judging whether the posture of the user is correct or not according to the plurality of differences. If the plurality of difference values are all within a first preset range, determining that the posture of the user is correct; and if the at least one difference value is not within the first preset range, determining that the posture of the user is incorrect.

In some embodiments, considering that even if a user is in a correct sitting posture, because the same body part has a curve, the distance values measured by adjacent distant distance sensors in the same horizontal direction are not the same, in order to make the determination result more accurate, the distance values measured by any two adjacent distance sensors may be subjected to difference processing to obtain a difference value, and then it is determined whether the posture of the user is correct according to the difference value, and if the difference value is within a first preset range, the posture of the user is determined to be correct; and if the difference value is not within the first preset range, determining that the posture of the user is incorrect. Therefore, the wrong judgment of two distance sensors with too far distance caused by the body curve of a person can be avoided.

Referring to fig. 7, a specific determination method can be continued, and fig. 7 is a schematic diagram illustrating a first flow of determining a sitting posture in the method for detecting a sitting posture of a user provided in fig. 6. When the plurality of distance sensors includes the first distance sensor 110 and the second distance sensor 120, the first distance sensor 110 and the second distance sensor 120 are configured to measure the same body part of the user in real time, wherein the same body part may be the shoulder, the waist or the hip, or may be other parts of the user, for example, if the first distance sensor 110 and the second distance sensor 120 are used to measure the shoulder of the user, the first distance sensor 110 may measure the left shoulder of the user, and the second distance sensor 120 may measure the right shoulder of the user. The specific requirement is set according to the actual situation, and is not specifically limited herein, wherein the specific process of obtaining the plurality of distance sensors to measure the distances to the body parts of the user in real time to obtain the plurality of distance values is as follows:

201. a first distance between the first distance sensor and the user is measured.

202. A second distance between the second distance sensor and the user is measured.

203. And acquiring a difference value between the first distance and the second distance, and determining that the posture of the user is correct if the difference value between the first distance and the second distance is within a first preset range.

204. And if the difference value of the first distance and the second distance is not within the first preset range, determining that the posture of the user is incorrect.

Referring to fig. 8, fig. 8 is a schematic diagram illustrating a second flow chart of determining a sitting posture in the method for detecting a sitting posture of a user provided in fig. 6. In some embodiments, the smart seat 100 further includes a third distance sensor 130, the third distance sensor 130 is not in the same horizontal direction as the first distance sensor 110 or the second distance sensor 120, and the specific flow of the method is as follows:

301. a third distance is measured between the third distance sensor and the user.

The third distance sensor 130 may be used to measure other parts of the user, different locations than the first distance sensor 110 or the second distance sensor 120.

302. And acquiring a difference value between the third distance and the first distance, and determining that the posture of the user is incorrect if the difference value between the third distance and the first distance is not within a second preset range.

In this embodiment, if the third distance sensor 130 and the first distance sensor 110 are arranged in different horizontal directions and the difference between the third distance and the first distance is not within the second preset range, it is determined that the posture of the user is incorrect.

Taking the example that the first distance sensor 110 and the second distance sensor 120 are configured to detect the shoulders of the user, and the third distance sensor 130 is configured to measure the waist of the user, when the third distance sensor 130 is vertically spaced apart from the first distance sensor 110, if the third distance is smaller than the first distance, that is, the difference between the third distance and the first distance is not within the second preset range, it is determined that the posture of the user is incorrect; if the third distance is greater than the first distance or the third distance is equal to the first distance, the posture of the user is determined to be correct, because the waist of the user protrudes backwards and the shoulder of the user advances when the user bows or leans forwards, the user can be determined to bow or lean forwards when the distance from the waist of the user to the intelligent seat is less than the distance from the shoulder of the user to the intelligent seat.

When the second preset range is needed to be maintained in the standard sitting posture consciously by the user, the third distance sensor 130 and the second distance sensor 120 respectively perform pre-measurement to obtain a difference value of the distance values to set calibration data, and store the calibration data in advance. And judging through the second preset range to judge whether the user has the bad conditions of forward leaning or backward bending of the waist.

In this embodiment, after the difference between the first distance measured by the first distance sensor 110 and the second distance measured by the second distance sensor 120 is obtained and the posture of the user is determined, the difference between the third distance measured by the third distance sensor 130 and the first distance measured by the first distance sensor 110, or the difference between the third distance measured by the third distance sensor 130 and the second distance measured by the second distance sensor 120 may be further obtained, so as to further determine the posture of the user. If the measurement results are all within the corresponding preset ranges, the posture of the user can be considered to be correct. In addition, in the above embodiments, the descriptions of the embodiments are focused on, and parts that are not described in detail in a certain embodiment may refer to the above detailed description for the smart seat 100, and are not described again here.

It should be noted that the method for detecting the sitting posture of the user provided in the embodiment of the present application and the smart seat 100 in the above embodiment belong to the same concept, and the method for detecting the sitting posture of the user can be applied to any embodiment provided in the embodiment of the smart seat 100, and the specific implementation process thereof is described in detail in the embodiment of the smart seat 100, and is not described herein again.

The method for detecting the sitting posture of the user further comprises the following steps of judging whether the user is in the intelligent seat 100: whether a user exists in the intelligent seat 100 is detected through the sitting posture detection device 10, if the sitting posture detection device 10 does not detect the user within a first preset time, any one of the distance sensors detects whether the user exists at a second preset time interval, and other devices are in a standby state. In this embodiment, when the distance sensor detects the user at the second preset time, other devices of the sitting posture detecting device 10 are turned on. When the distance sensor does not detect the user for a second preset time, the sitting posture detecting device 10 is turned off. The first preset time and the second preset time may be preset.

The method for detecting the sitting posture of the user can also judge whether the user is on the smart chair 100 through a pressure sensor in the smart chair 100, wherein the pressure sensor is arranged on the chair seat and used for measuring a pressure value.

The specific judgment method is as follows:

the pressure value measured by the pressure sensor is obtained, whether the user is on the intelligent seat 100 or not is judged according to the pressure value, namely whether the pressure value is within a fourth preset range or not is judged, if the pressure value is within the fourth preset range, the user is determined to be on the intelligent seat 100, the sitting posture detection device is started, and if the pressure value is not within the fourth preset range, the user is determined not to be on the intelligent seat 100, and the sitting posture detection device is closed. When the user sits on the smart seat 100 and the user does not sit on the smart seat 100, the pressure sensor measures the pressure value in advance to obtain calibration data, and stores the calibration data in advance.

It should be noted that the terms "first" and "second" in the description of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The intelligent seat and the method for detecting the sitting posture of the user provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. The utility model provides an intelligent seat, includes seat support and chair frame, its characterized in that, intelligent seat still includes:

2. The smart seat of claim 1, wherein the plurality of distance sensors includes at least a first distance sensor and a second distance sensor, the first and second distance sensors configured to measure a same body part of a user, the first distance sensor measuring a first distance, the second distance sensor measuring a second distance;

3. The smart seat of claim 2, wherein the sitting posture detection device further comprises a third distance sensor, the third distance sensor not being in the same horizontal direction as the first distance sensor, the third distance sensor measuring a third distance;

4. The smart seat of claim 1, wherein the sitting posture detection device further comprises a fourth distance sensor and a fifth distance sensor disposed along a same vertical direction, the fourth distance sensor configured to measure a fourth distance from the user, the fifth distance sensor configured to measure a fifth distance from the user;

5. The smart seat of claim 4, wherein the sitting posture detection device further comprises a sixth distance sensor disposed along the vertical direction, wherein the fourth distance sensor is configured to measure a fourth distance from the first body part of the user, the fifth distance sensor is configured to measure a fifth distance from the second body part of the user, and the sixth distance sensor is configured to measure a sixth distance from the third body part of the user;

6. The smart seat according to any one of claims 1 to 5, further comprising a pressure sensor disposed at the seat for measuring a pressure value;

7. A smart seat according to any one of claims 1 to 5, wherein the sitting posture detection means includes a reminder alarm, the reminder alarm being electrically connected to the processor and being controlled to issue a reminder when the processor determines that the user is not in the correct posture.

8. A method for detecting the sitting posture of a user is applied to an intelligent seat, and is characterized in that the intelligent seat comprises a seat, a seat frame and a sitting posture detection device, the sitting posture detection device is fixedly installed on the seat frame, the sitting posture detection device comprises a plurality of distance sensors which are arranged at intervals in the same horizontal direction of the seat frame, and the method comprises the following steps:

9. The method of claim 8, wherein the plurality of distance sensors includes at least a first distance sensor and a second distance sensor, the first and second distance sensors configured to measure a same body part of a user; measuring in real time the distances of a plurality of said distance sensors from a user's body part to obtain a plurality of distance values comprises:

measuring a first distance between the first distance sensor and a user;

measuring a second distance between the second distance sensor and the user;

10. The method of claim 9, wherein the sitting posture detection device further comprises a third distance sensor that is not in the same horizontal direction as the first distance sensor, the method further comprising:

measuring a third distance between the third distance sensor and the user;

11. The method according to any one of claims 8-10, further comprising: