CN112057057B

CN112057057B - Method and apparatus for adjusting pulse measurement device and measuring pulse signal

Info

Publication number: CN112057057B
Application number: CN202010802953.5A
Authority: CN
Inventors: 邓超
Original assignee: Shanghai Zhangmen Science and Technology Co Ltd
Current assignee: Shanghai Zhangmen Science and Technology Co Ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2022-04-26
Anticipated expiration: 2040-08-11
Also published as: CN112057057A

Abstract

The application aims to provide a method for adjusting a pulse measuring device and measuring a pulse signal, which comprises the following steps: shooting first image information under the condition that a reference point light source is turned on; driving the measuring unit or the cavity to enable the measuring unit and the cavity to generate relative displacement on a horizontal plane, then shooting second image information when the reference point light source is in an open state, and shooting third image information when the reference point light source is in a closed state; determining a displacement mapping relation between image coordinate displacement and actual physical displacement in the pulse measuring device according to first coordinate information of a first reference point in first image information, second coordinate information of a second reference point in second image information and physical position change information corresponding to the relative displacement; and determining second target displacement information for vertically aligning the measuring unit with the pulse point of the wrist of the user according to the second coordinate information, third coordinate information of the third reference point in the third image information and the displacement mapping relation.

Description

Method and apparatus for adjusting pulse measurement device and measuring pulse signal

Technical Field

The present application relates to the field of communications, and in particular, to a technique for adjusting a pulse measurement device and measuring a pulse signal.

Background

Pulse diagnosis is a palpation method to examine the changes of pulse conditions by touching the pulse at different parts of the body. The traditional pulse feeling is realized by the sensitive touch of the fingers of the doctor. With the development of technology, pulse measurement devices have emerged. The existing pulse measuring device mainly collects the pulse signal information of a human body through a sensor and analyzes and processes the pulse signal information so as to achieve the purpose of pulse diagnosis.

Disclosure of Invention

An object of the present application is to provide a method and apparatus for measuring a pulse signal using a pulse measuring device.

According to an aspect of the present application, there is provided a method of adjusting a pulse measurement device, wherein the pulse measurement device includes a cavity for receiving a wrist of a user, a camera unit for photographing the wrist of the user, and a measurement unit mounted with a pulse pressure sensor and a reference point light source, the method including:

shooting first image information of the wrist of the user through the camera unit when the reference point light source is in an on state, wherein the reference point light source is imaged on a first reference point in the first image information;

driving the measuring unit or the cavity to enable the measuring unit and the cavity to generate relative displacement on a horizontal plane, then shooting second image information of the wrist of the user through the camera unit when the reference point light source is in an on state, and shooting third image information of the wrist of the user through the camera unit when the reference point light source is in an off state, wherein the reference point light source is imaged on a second reference point in the second image information, and a pulse point of the wrist of the user is imaged on a third reference point in the third image information;

determining a displacement mapping relation between image coordinate displacement and actual physical displacement in the pulse measuring device according to first coordinate information of the first reference point in the first image information, second coordinate information of the second reference point in the second image information and physical position change information corresponding to the relative displacement;

and determining second target displacement information of the pulse point of the measuring unit and the wrist of the user on a horizontal plane according to the second coordinate information, the third coordinate information of the third reference point in the third image information and the displacement mapping relation, so that the measuring unit is vertically aligned with the pulse point of the wrist of the user after passing through the second target displacement information.

According to an aspect of the present application, there is provided a method of measuring a pulse signal using a pulse measuring device, wherein the pulse measuring device includes a cavity for receiving a wrist of a user, a camera unit for photographing the wrist of the user, and a measuring unit mounted with a pulse pressure sensor and a reference point light source, the method including:

and driving the measuring unit or the cavity to enable the measuring unit to align to a pulse point of the wrist of the user according to first coordinate information of the first reference point in the first image information, second coordinate information of the second reference point in the second image information, third coordinate information of the third reference point in the third image information, and physical position change information corresponding to the relative displacement, and acquiring a pulse signal of the wrist of the user through the pulse pressure sensor.

According to an aspect of the present application, there is provided a pulse measurement device, comprising a cavity for accommodating a wrist of a user, a camera unit for photographing the wrist of the user, and a measurement unit having a pulse pressure sensor and a reference point light source mounted thereon, the pulse measurement device comprising:

a processor; and

a memory arranged to store computer executable instructions that, when executed, cause the processor to:

a processor; and

driving the measuring unit or the cavity to enable the measuring unit to align with a pulse point of the wrist of the user according to first coordinate information of the first reference point in the first image information, second coordinate information of the second reference point in the second image information, third coordinate information of the third reference point in the third image information and physical position change information corresponding to the relative displacement, and acquiring a pulse signal of the wrist of the user through the pulse pressure sensor

According to one aspect of the application, there is provided a computer-readable medium storing instructions that, when executed, cause a system to:

According to another aspect of the present application, there is provided a pulse measurement device, wherein the pulse measurement device includes a cavity for accommodating a wrist of a user, a camera unit for photographing the wrist of the user, and a measurement unit in which a pulse pressure sensor and a reference point light source are installed, the pulse measurement device including:

a module, configured to capture first image information of the wrist of the user through the camera unit when the reference point light source is in an on state, where the reference point light source is imaged at a first reference point in the first image information;

the second module and the second module are used for driving the measuring unit or the cavity to enable the measuring unit and the cavity to generate relative displacement on a horizontal plane, then shooting second image information of the wrist of the user through the camera unit when the reference point light source is in an on state, and shooting third image information of the wrist of the user through the camera unit when the reference point light source is in an off state, wherein the reference point light source is imaged on a second reference point in the second image information, and a pulse point of the wrist of the user is imaged on a third reference point in the third image information;

a third module, configured to determine a displacement mapping relationship between image coordinate displacement and actual physical displacement in the pulse measurement device according to first coordinate information of the first reference point in the first image information, second coordinate information of the second reference point in the second image information, and physical position change information corresponding to the relative displacement;

and the fourth module is used for determining second target displacement information of the pulse point of the measuring unit and the wrist of the user on a horizontal plane according to the second coordinate information, the third coordinate information of the third reference point in the third image information and the displacement mapping relation, so that the measuring unit is vertically aligned with the pulse point of the wrist of the user after passing through the second target displacement information.

According to another aspect of the present application, there is provided a pulse measuring device measuring a pulse signal, wherein the pulse measuring device includes a cavity for accommodating a wrist of a user, a camera unit for photographing the wrist of the user, and a measuring unit mounted with a pulse pressure sensor and a reference point light source, the pulse measuring device including:

the camera unit is used for shooting first image information of the wrist of the user when the reference point light source is in an on state, wherein the reference point light source is imaged on a first reference point in the first image information;

the second module is used for driving the measuring unit or the cavity to enable the measuring unit and the cavity to generate relative displacement on a horizontal plane, then shooting second image information of the wrist of the user through the camera shooting unit when the reference point light source is in an open state, and shooting third image information of the wrist of the user through the camera shooting unit when the reference point light source is in a closed state, wherein the reference point light source is imaged on a second reference point in the second image information, and a pulse point of the wrist of the user is imaged on a third reference point in the third image information;

and the second and third modules are used for driving the measuring unit or the cavity to enable the measuring unit to align to the pulse point of the wrist of the user according to the first coordinate information of the first reference point in the first image information, the second coordinate information of the second reference point in the second image information, the third coordinate information of the third reference point in the third image information and the physical position change information corresponding to the relative displacement, and acquiring the pulse signal of the wrist of the user through the pulse pressure sensor.

Compared with the prior art, the image pickup unit is used for shooting the first image information of the wrist of the user in the opening state of the reference point light source, the measuring unit or the cavity is driven to enable the measuring unit and the cavity to generate relative displacement on the horizontal plane, and the second image information and the third image information of the wrist of the user are shot by the image pickup unit when the reference point light source is in the opening and closing state. And determining a displacement mapping relation between image coordinate displacement and actual physical displacement in the pulse measurement device according to coordinate information of imaging points of the reference point light source in the first image information and the second image information and physical position change information corresponding to the relative displacement, determining displacement information for enabling a measurement unit of the pulse measurement device to be vertically aligned with the pulse point of the wrist of the user according to the coordinate information of the imaging point of the reference point light source in the second image information, the imaging coordinate information of the pulse point of the wrist of the user in the third image information and the displacement mapping relation, driving the measurement unit or the cavity to enable the measurement unit to be aligned with the pulse point of the wrist of the user, and acquiring pulse signals of the wrist of the user through the pulse pressure sensor to enable the pulse pressure sensor to be aligned with the pulse point of the wrist of the user.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 shows a schematic structural diagram of a pulse measurement device according to an embodiment of the present application;

FIG. 2 illustrates a flow chart of a method of adjusting a pulse measurement device according to one embodiment of the present application;

FIG. 3 illustrates a specific application of an apparatus for adjusting pulse measurements according to an embodiment of the present application;

FIG. 4 illustrates a specific application of an apparatus for adjusting pulse measurement according to an embodiment of the present application;

FIG. 5 illustrates a specific application of an apparatus for adjusting pulse measurement according to an embodiment of the present application;

FIG. 6 illustrates a flow chart of a method for measuring pulse signals using a pulse measurement device according to one embodiment of the present application;

FIG. 7 illustrates a diagram of a pulse measurement device according to one embodiment of the present application;

FIG. 8 is a diagram illustrating a structure of a pulse measuring device for measuring a pulse signal according to an embodiment of the present application;

FIG. 9 illustrates an exemplary system that can be used to implement the various embodiments described in this application.

The same or similar reference numbers in the drawings identify the same or similar elements.

Reference numerals

101 chamber

102 image pickup unit

103 measuring unit

Detailed Description

The present application is described in further detail below with reference to the attached figures.

In a typical configuration of the present application, the terminal, the device serving the network, and the trusted party each include one or more processors (e.g., Central Processing Units (CPUs)), input/output interfaces, network interfaces, and memory.

The Memory may include forms of volatile Memory, Random Access Memory (RAM), and/or non-volatile Memory in a computer-readable medium, such as Read Only Memory (ROM) or Flash Memory. Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, Phase-Change Memory (PCM), Programmable Random Access Memory (PRAM), Static Random-Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), electrically Erasable Programmable Read-Only Memory (EEPROM), flash Memory or other Memory technology, Compact Disc Read-Only Memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device.

The device referred to in this application includes, but is not limited to, a user device, a network device, or a device formed by integrating a user device and a network device through a network. The user equipment includes, but is not limited to, any mobile electronic product, such as a smart phone, a tablet computer, etc., capable of performing human-computer interaction with a user (e.g., human-computer interaction through a touch panel), and the mobile electronic product may employ any operating system, such as an Android operating system, an iOS operating system, etc. The network Device includes an electronic Device capable of automatically performing numerical calculation and information processing according to a preset or stored instruction, and the hardware includes, but is not limited to, a microprocessor, an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a Digital Signal Processor (DSP), an embedded Device, and the like. The network device includes but is not limited to a computer, a network host, a single network server, a plurality of network server sets or a cloud of a plurality of servers; here, the Cloud is composed of a large number of computers or web servers based on Cloud Computing (Cloud Computing), which is a kind of distributed Computing, one virtual supercomputer consisting of a collection of loosely coupled computers. Including, but not limited to, the internet, a wide area network, a metropolitan area network, a local area network, a VPN network, a wireless Ad Hoc network (Ad Hoc network), etc. Preferably, the device may also be a program running on the user device, the network device, or a device formed by integrating the user device and the network device, the touch terminal, or the network device and the touch terminal through a network.

Of course, those skilled in the art will appreciate that the foregoing is by way of example only, and that other existing or future devices, which may be suitable for use in the present application, are also encompassed within the scope of the present application and are hereby incorporated by reference.

In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Fig. 1 shows a schematic structural diagram of a pulse measurement device according to an embodiment of the present application. The pulse measuring device comprises a cavity 101 for accommodating the wrist of a user, a camera unit 102 for shooting the wrist of the user, and a measuring unit 103 provided with a pulse pressure sensor and a reference point light source. In some embodiments, the cavity 101 and/or the measurement unit 103 may be movable in a horizontal direction and/or a vertical direction. In the following embodiments, unless otherwise specified, the present application will explain each embodiment by taking the movement of the measurement unit 103 as an example; it will be appreciated by those skilled in the art that the following embodiments may also be implemented by movement of the chamber 101, or by coordinated movement of the chamber 101 and the measurement unit 103.

It should be understood by those skilled in the art that the above-described pulse measurement device structure is merely exemplary, and other existing or later-occurring pulse measurement device structures may be applied to this embodiment and are included within the scope of the present invention and are herein incorporated by reference.

Fig. 2 shows a flowchart of a method of adjusting a pulse measuring device according to an embodiment of the present application, the method comprising steps S11, S12, S13, S14. In step S11, the pulse measurement apparatus captures first image information of the wrist of the user through the camera unit with the reference point light source being in an on state, wherein the reference point light source is imaged on a first reference point in the first image information; in step S12, the pulse measurement device drives the measurement unit or the cavity to generate a relative displacement between the measurement unit and the cavity on a horizontal plane, and then the camera unit captures a second image of the wrist of the user when the reference point light source is in an on state, and the camera unit captures a third image of the wrist of the user when the reference point light source is in an off state, wherein the reference point light source is imaged on a second reference point in the second image, and the pulse point of the wrist of the user is imaged on a third reference point in the third image; in step S13, the pulse measurement device determines a displacement mapping relationship between the image coordinate displacement and the actual physical displacement in the pulse measurement device according to the first coordinate information of the first reference point in the first image information, the second coordinate information of the second reference point in the second image information, and the physical position change information corresponding to the relative displacement; in step S14, the pulse measurement apparatus determines second target displacement information of the measurement unit and the pulse point of the wrist of the user on a horizontal plane according to the second coordinate information, the third coordinate information of the third reference point in the third image information, and the displacement mapping relationship, so that the measurement unit is vertically aligned with the pulse point of the wrist of the user after passing through the second target displacement information.

In step S11, the pulse measurement apparatus captures first image information of the wrist of the user through the camera unit with the reference point light source in an on state, wherein the reference point light source is imaged on a first reference point in the first image information. In some embodiments, the reference point light source includes, but is not limited to, a light source such as a laser that can emit light in a directional manner. In some embodiments, the application diagram shown in fig. 3 is first image information of the user's wrist captured by the image capturing unit 102 in a state where the reference point light source is on. The position indicated by "+" in fig. 3 is the imaging position of the reference point light source in the first image information, i.e. the position of the first reference point. In some embodiments, the pulse measurement device may image process the captured first image information to determine the first reference point. For example, luminance threshold value information is determined from the luminance difference between the first reference point and the other regions, and the first image information is binarized based on the luminance threshold value information, and the first reference point is determined from the binarized image.

It will be understood by those skilled in the art that the above-mentioned manner of determining the first reference point is merely an example, and other existing or later-occurring manners for determining the first reference point, such as applicable to this embodiment, are also included within the scope of protection of this embodiment and are herein incorporated by reference.

In step S12, the pulse measurement device drives the measurement unit or the cavity to generate a relative displacement between the measurement unit and the cavity on a horizontal plane, and then the camera unit captures a second image of the wrist of the user when the reference point light source is turned on, and the camera unit captures a third image of the wrist of the user when the reference point light source is turned off, wherein the reference point light source is imaged on a second reference point in the second image, and the pulse point of the wrist of the user is imaged on a third reference point in the third image. In some embodiments, the three-dimensional coordinate system may be predetermined. For example, the imaging unit is used as the origin of coordinates, the rightward direction parallel to the horizontal plane is used as the x-axis forward direction, the downward direction parallel to the horizontal plane is used as the y-axis forward direction, and the downward direction perpendicular to the horizontal plane is used as the z-axis forward direction. The pulse measuring device can drive the measuring unit 103 or the cavity 101 or the measuring unit 103 and the cavity 101 to displace in the x-axis and/or y-axis direction, so that the measuring unit 103 and the cavity 101 generate relative displacement in the horizontal plane. The driving manner includes, but is not limited to, the pulse measurement device drives the measurement unit 103 or the cavity 101 to displace in the x-axis and/or y-axis direction through the stepping motor. During the movement of the measurement unit 103 or the chamber 101, the height of the measurement unit 103 and the chamber 101 in the z-axis direction is kept constant, or the height difference between the measurement unit 103 and the chamber 101 before and after the movement in the vertical direction is substantially zero. In the process of shooting the second image information and the third image information by the camera unit 102, the relative position of the measurement unit 103 and the cavity 101 is kept unchanged. In some embodiments, the image sizes of the first image information, the second image information and the third image information, the shooting parameters of the camera unit 102, and the like are all the same. In some embodiments, if the pulse measurement device can drive the cavity to displace in the x-axis and/or y-axis direction, the camera unit and the cavity maintain a fixed relative position, and the camera unit can displace correspondingly with the cavity in the x-axis and/or y-axis direction, so that the position of the second reference point in the second image information is changed relative to the position of the first reference point in the first image information.

In some embodiments, the application diagram shown in fig. 4 is second image information of the user's wrist captured by the image capturing unit 102 in a state where the reference point light source is on. The position indicated by "+" in fig. 4 is the imaging position of the reference point light source in the second image information, i.e. the position of the second reference point. Here, the determination method of the second reference point is the same as or similar to the determination method of the first reference point, and therefore, the detailed description is omitted, and the determination method is incorporated herein by reference.

In some embodiments, the application diagram shown in fig. 5 is third image information of the user's wrist captured by the imaging unit 102 with the reference point light source in an off state. The position indicated by "good" in fig. 5 is the imaging position of the wrist pulse point of the user in the third image information, i.e., the position of the third reference point. In some embodiments, the pulse measurement device may determine the third reference point according to a pulse position recognition model, for example, the third image information is input into the pulse position recognition model, and the pulse position recognition model outputs the position information of the third reference point in the third image information. The pulse position recognition model is obtained by training a large number of sample pictures containing the pulse points of the human wrist, wherein the specific positions of the pulse points of the human wrist are marked in each sample picture.

It will be understood by those skilled in the art that the above-mentioned manner of determining the third reference point is merely an example, and other existing or later-occurring manners for determining the third reference point, such as applicable to this embodiment, are also included within the scope of protection of this embodiment and are herein incorporated by reference.

In step S13, the pulse measurement device determines a displacement mapping relationship between the image coordinate displacement and the actual physical displacement in the pulse measurement device according to the first coordinate information of the first reference point in the first image information, the second coordinate information of the second reference point in the second image information, and the physical position change information corresponding to the relative displacement. In some embodiments, the pixel coordinate systems of the first image information, the second image information, and the third image information are established in the same manner. For example, with reference to the application diagrams shown in fig. 3, 4, and 5, pixel coordinate systems of the first image information, the second image information, and the third image information are respectively established with the upper image boundary as the X axis and the left image boundary as the Y axis, pixel coordinates of the first reference point, the second reference point, and the third reference point in the image are calculated, and the first coordinate information (Xa, Ya), the second coordinate information (Xb, Yb), and the third coordinate information (Xm, Ym) are determined. In some embodiments, the pulse measurement device determines physical position change information (Δ x, Δ y) corresponding to the relative displacement in a predetermined three-dimensional coordinate system. The pulse measuring device determines a displacement mapping relation between image coordinate displacement and actual physical displacement in the pulse measuring device according to the first coordinate information (Xa, Ya), the second coordinate information (Xb, Yb) and the physical position change information (delta x, delta y) corresponding to the relative displacement, wherein:

the displacement mapping relation between the displacement in the X-axis direction of the image and the displacement in the actual X-axis direction is as follows: rx ═ (Xb-Xa)/Δ x;

the displacement mapping relation between the displacement in the Y-axis direction of the image and the displacement in the actual Y-axis direction is as follows: ry is (Yb-Ya)/Δ y.

In step S14, the pulse measurement apparatus determines second target displacement information of the measurement unit and the pulse point of the wrist of the user on a horizontal plane according to the second coordinate information, the third coordinate information of the third reference point in the third image information, and the displacement mapping relationship, so that the measurement unit is vertically aligned with the pulse point of the wrist of the user after passing through the second target displacement information. In some embodiments, the pulse measurement device determines, based on the second coordinate information (Xb, Yb), the third coordinate information (Xm, Ym), and the displacement mapping relationship Rx between the image X-axis directional displacement and the actual X-axis directional displacement, and the displacement mapping relationship Ry between the image Y-axis directional displacement and the actual Y-axis directional displacement, the distance information Lx in the X-axis direction between the measurement unit and the pulse point on the wrist of the user is (Xm-Xb)/Rx, the distance information Ly in the Y-axis direction is (Ym-Yb)/Ry, and determines the second target displacement information based on the distance information Lx in the X-axis direction and the distance information Ly in the Y-axis direction, respectively, in a predetermined three-dimensional coordinate system.

In some embodiments, the method further comprises: step S15 (not shown), the pulse measurement device drives the measurement unit and/or the cavity according to the second target displacement information, so that the measurement unit is aligned with the pulse point of the user' S wrist; and acquiring the pulse signal of the wrist of the user through the pulse pressure sensor. In some embodiments, the pulse measurement device may drive the measurement unit and/or the cavity according to the second target displacement information and the information of the vertical distance between the measurement unit and the pulse point of the wrist of the user, so that the measurement unit is aligned with the pulse point of the wrist of the user. In some embodiments, the camera unit uses a depth camera, and the camera unit and the measuring unit have the same initial height, that is, the camera unit and the measuring unit are at the same initial horizontal plane when the camera unit takes the first image information and the second image information. The pulse measuring device determines horizontal plane vertical distance information of an initial horizontal plane where the camera unit is located and a horizontal plane where the user wrist is located according to first depth information corresponding to the first reference point in the first image information and second depth information corresponding to the second reference point in the second image information, and determines vertical distance information of pulse points of the measuring unit and the user wrist according to the horizontal plane vertical distance information and the distance information corresponding to the relative displacement.

In some embodiments, the method further comprises: step S16 (not shown), the pulse measurement device identifies the first reference point in the first image information and determines first coordinate information of the first reference point in the first image information. In some embodiments, after the imaging unit captures first image information of the wrist of the user, the pulse measurement device identifies the first reference point according to the first image information, and determines first coordinate information of the first reference point in the first image information. The identification method of the first reference point and the determination method of the first coordinate information are the same as or similar to the determination methods of the first reference point and the first coordinate information in the foregoing steps S11 and S13, respectively, and therefore, the description is omitted and the determination methods are incorporated herein by reference.

In some embodiments, the method further comprises: step S17 (not shown), the pulse measurement device determines first target displacement information of the measurement unit or the cavity on the horizontal plane according to the first coordinate information; wherein the step S12 includes: and driving the measuring unit or the cavity according to the first target displacement information to enable the measuring unit and the cavity to generate relative displacement matched with the first target displacement information on the horizontal plane, then shooting second image information of the wrist of the user through the camera unit when the reference point light source is in an on state, and shooting third image information of the wrist of the user through the camera unit when the reference point light source is in an off state, wherein the reference point light source is imaged on a second reference point in the second image information, and a pulse point of the wrist of the user is imaged on a third reference point in the third image information. In some embodiments, the pulse measurement device may determine the first target displacement information according to whether the first coordinate information (Xa, Ya) satisfies the preset coordinate condition information. For example, if the X-axis direction coordinate Xa corresponding to the first coordinate information is less than or equal to the preset X-axis minimum coordinate threshold information, the pulse measurement device determines that the measurement unit should move towards the positive direction of the X-axis or the cavity should move towards the negative direction of the X-axis by a preset displacement value; if the X-axis direction coordinate Xa corresponding to the first coordinate information is larger than or equal to the preset X-axis maximum coordinate threshold information, the pulse measuring device determines that the measuring unit should move towards the negative direction of the X-axis or the cavity should move towards the positive direction of the X-axis by a preset displacement value; if the X-axis direction coordinate Xa corresponding to the first coordinate information is greater than or equal to the X-axis minimum coordinate threshold information and less than or equal to the preset X-axis maximum coordinate threshold information, the pulse measurement device may determine the displacement information of the measurement unit or the cavity in the X-axis direction according to the preset direction or the randomly determined direction and the preset displacement value. The determination method of the displacement information of the measurement unit or the cavity in the y-axis direction is the same as or similar to the determination method of the displacement information in the x-axis direction, and therefore, the detailed description is omitted, and the description is incorporated herein by reference. The pulse measuring device determines the first target displacement information according to the displacement information in the x-axis direction and the displacement information in the y-axis direction so as to ensure that the measuring unit or the cavity has proper displacement in the horizontal direction and enable the reference point light source to always form an image in the image shot by the camera unit. Here, if the pulse measurement device can drive the cavity to move, the camera unit is fixed with the cavity, and the camera unit can displace along with the cavity in the x-axis and/or y-axis direction, so that the position of the second reference point in the second image information changes relative to the position of the first reference point in the first image information.

In some embodiments, the step S17 includes: step S171 (not shown), determining, by the pulse measurement device, a moving direction of the measurement unit or the cavity on the horizontal plane according to the first coordinate information and the first image information; step S172 (not shown), determining first target displacement information of the measurement unit or the cavity on the horizontal plane according to the moving direction and the displacement distance information. In some embodiments, the pulse measurement device determines a moving direction of the measurement unit or the cavity on the horizontal plane according to the first coordinate information and the image boundary information corresponding to the first image information, so as to ensure that the reference point light source can always form an image in the image captured by the image capturing unit. In some embodiments, the displacement distance information may be predetermined or determined according to the first coordinate information and the first image information.

In some embodiments, the step S171 includes: determining boundary distance information of the first reference point in the first image information by the pulse measuring device according to the first coordinate information and the first image information; if the boundary distance information is greater than or equal to a predetermined boundary distance threshold, determining that the moving direction of the measurement unit or the cavity on the horizontal plane includes a direction toward a boundary corresponding to the boundary distance information, for example, the direction is perpendicular to the boundary and points to the boundary from a first reference point. In some embodiments, the pulse measurement device may determine the boundary distance information of the first reference point in the first image information from the coordinate information (Xmax, Ymax) of the first coordinate information (Xa, Ya) corresponding to the maximum point of pixel coordinates in the first image information. For example, the boundary distance information corresponding to the first reference point and the left boundary of the first image information is a Y-axis distance | Xa | from the first reference point to the first image information, and the boundary distance information corresponding to the first reference point and the right boundary of the first image information is a difference | Xmax | - | Xa | between the maximum point of the pixel coordinate in the first image information and the Y-axis distance from the first reference point to the Y-axis. The determining method of the boundary distance information corresponding to the upper and lower boundaries of the first image information is the same as or similar to the determining method of the boundary distance information corresponding to the left and right boundaries, and therefore, the description is omitted, and the determining method is included herein by reference. If the boundary distance information | Xa | corresponding to the left boundary is greater than or equal to the predetermined boundary distance threshold, the pulse measurement device may determine that the moving direction of the measurement unit or the cavity on the horizontal plane may include a direction in which the imaging point of the reference point light source moves toward the left boundary, that is, the measurement unit may move in the negative direction of the x-axis, and the cavity may move in the positive direction of the x-axis. In some embodiments, if the pulse measurement device determines a plurality of movable directions, it may be determined from the corresponding boundary distance information that one or more boundary distance information having larger boundary distance information correspond to the movable direction as the moving direction of the measurement unit or the cavity on the horizontal plane.

In some embodiments, the step S172 includes: the pulse measuring device determines the maximum forward movement distance information of the first reference point in the first image information along the movement direction and the maximum reverse movement distance information of the first reference point in the first image information along the direction opposite to the movement direction according to the first coordinate information; determining displacement distance information of the measuring unit or the cavity on the horizontal plane along the moving direction according to ratio information of the maximum forward moving distance information and the maximum reverse moving distance information and preset minimum displacement distance information; and determining first target displacement information of the measuring unit or the cavity on the horizontal plane according to the moving direction and the displacement distance information. In some embodiments, the pulse measurement device determines, from the first coordinate information and the movement direction, maximum forward movement distance information in a direction in which the first reference point moves in the first image information, and maximum reverse movement distance information in a direction opposite to the direction in which the first reference point moves in the first image information. For example, if the pulse measurement device determines that the moving direction of the measurement unit or the cavity on the horizontal plane includes a direction in which the imaging point of the reference point light source moves toward the left boundary and along the vertical direction thereof, the maximum forward moving distance information may be determined to be | Xa | and the maximum reverse moving distance information | Xmax | - | Xa | according to the first coordinate information (Xa, Ya) and the coordinate information (Xmax, Ymax) corresponding to the maximum point of the pixel coordinate in the first image information. And the pulse measuring device determines that the displacement distance information of the measuring unit and the cavity in the moving direction is delta d x Xa |/(| Xmax | - | Xa |) according to the ratio information of the maximum forward moving distance information and the maximum reverse moving distance information and the preset minimum displacement distance information delta d, so that the pulse measuring device drives the measuring unit or the cavity to generate relative displacement on a horizontal plane according to the displacement distance information determined by the first coordinate information, and the reference point light source can finally form an image in the image shot by the camera unit.

In some embodiments, the method further comprises: step S18 (not shown), the pulse measuring device identifies the third reference point in the third image information and determines third coordinate information of the third reference point in the third image information. In some embodiments, the pulse measurement device identifies a third reference point according to a pulse position identification model, and calculates third coordinate information of the third reference point in the third image information. The identification method of the third reference point and the determination method of the third coordinate information are the same as or similar to the determination methods of the third reference point and the third coordinate information in the foregoing steps S12 and S13, respectively, and therefore, the description thereof is omitted, and the determination methods are incorporated herein by reference.

Fig. 6 shows a flowchart of a method for measuring a pulse signal using a pulse measuring device according to an embodiment of the present application, the method including steps S21, S22, and S23. In step S21, the pulse measurement apparatus captures first image information of the wrist of the user through the camera unit with the reference point light source being in an on state, wherein the reference point light source is imaged on a first reference point in the first image information; in step S22, the pulse measurement device drives the measurement unit or the cavity to generate a relative displacement between the measurement unit and the cavity on a horizontal plane, and then the camera unit captures a second image of the wrist of the user when the reference point light source is in an on state, and the camera unit captures a third image of the wrist of the user when the reference point light source is in an off state, wherein the reference point light source is imaged on a second reference point in the second image, and the pulse point of the wrist of the user is imaged on a third reference point in the third image; in step S13, the pulse measurement device drives the measurement unit or the cavity to align the measurement unit with a pulse point of the wrist of the user according to first coordinate information of the first reference point in the first image information, second coordinate information of the second reference point in the second image information, third coordinate information of the third reference point in the third image information, and physical position change information corresponding to the relative displacement, and acquires a pulse signal of the wrist of the user through the pulse pressure sensor.

The specific implementation manners of the steps S21 and S22 are the same or substantially the same as the steps S11 and S12 in the foregoing embodiments, and therefore are not described herein again and are incorporated herein by reference,

in step S23, the pulse measurement device drives the measurement unit or the cavity to align the measurement unit with a pulse point of the wrist of the user according to first coordinate information of the first reference point in the first image information, second coordinate information of the second reference point in the second image information, third coordinate information of the third reference point in the third image information, and physical position change information corresponding to the relative displacement, and acquires a pulse signal of the wrist of the user through the pulse pressure sensor. In some embodiments, the pixel coordinate systems of the first image information, the second image information, and the third image information are established in the same manner. For example, with reference to the application diagrams shown in fig. 3, 4, and 5, pixel coordinate systems of the first image information, the second image information, and the third image information are respectively established with the upper image boundary as the X axis and the left image boundary as the Y axis, pixel coordinates of the first reference point, the second reference point, and the third reference point in the image are calculated, and the first coordinate information (Xa, Ya), the second coordinate information (Xb, Yb), and the third coordinate information (Xm, Ym) are determined. In some embodiments, the pulse measurement device may drive the measurement unit or the cavity to move in the x-axis and/or y-axis direction according to the first coordinate information (Xa, Ya), the second coordinate information (Xb, Yb), the third coordinate information (Xm, Ym), and the physical position change information (Δ x, Δ y) corresponding to the relative displacement, so that the measurement unit is aligned with the pulse point of the wrist of the user in the z-axis direction, and then drive the measurement unit or the cavity to move in the z-axis direction, so that the measurement unit is aligned with the pulse point of the wrist of the user, and acquire the pulse signal of the wrist of the user through the pulse pressure sensor mounted on the measurement unit.

In some embodiments, the step S23 includes: step S231 (not shown), determining, by the pulse measurement device, a displacement mapping relationship between the image coordinate displacement and the actual physical displacement in the pulse measurement device according to first coordinate information of the first reference point in the first image information, second coordinate information of the second reference point in the second image information, and physical position change information corresponding to the relative displacement; step S232 (not shown), the pulse measurement device drives the measurement unit or the cavity to align the measurement unit to the pulse point of the wrist of the user according to the second coordinate information, the third coordinate information of the third reference point in the third image information, and the displacement mapping relationship, and acquires the pulse signal of the wrist of the user through the pulse pressure sensor. In some embodiments, the pulse measurement device determines the physical position change information (Δ x, Δ y) of the measurement unit corresponding to the relative displacement of the cavity in the horizontal plane according to the first target displacement information of the measurement unit or the cavity in the horizontal plane. In some embodiments, a displacement mapping relationship Rx between image X-axis directional displacement and actual X-axis directional displacement in the pulse measurement device is determined as (Xb-Xa)/Δ X, and a displacement mapping relationship Ry between image Y-axis directional displacement and actual Y-axis directional displacement is determined as (Yb-Ya)/Δ Y according to the first coordinate information (Xa, Ya), the second coordinate information (Xb, Yb), and the physical position change information (Δ X, Δ Y) corresponding to the relative displacement. And the pulse measuring device drives the measuring unit or the cavity to enable the measuring unit to be aligned to the pulse point of the wrist of the user according to the second coordinate information (Xb, Yb), the third coordinate information (Xm, Ym) and the displacement mapping relation Rx and Ry.

In some embodiments, the step S232 includes: step S2321 (not shown), the pulse measurement apparatus determines second target displacement information of the pulse point of the measurement unit and the user' S wrist on the horizontal plane according to the second coordinate information, the third coordinate information and the displacement mapping relationship; step S2322 (not shown), the pulse measurement device drives the measurement unit and/or the cavity according to the second target displacement information, so that the measurement unit is aligned with the pulse point of the wrist of the user; step S2323 (not shown), the pulse measuring device collects a pulse signal of the wrist of the user through the pulse pressure sensor. In some embodiments, the pulse measurement device determines, based on the second coordinate information (Xb, Yb), the third coordinate information (Xm, Ym), and the displacement mapping relations Rx and Ry, distance information Lx in the x-axis direction between the measurement unit and the pulse point of the user's wrist as (Xm-Xb)/Rx, distance information Ly in the y-axis direction as (Ym-Yb)/Ry, and determines the second target displacement information based on the distance information Lx in the x-axis direction and the distance information Ly in the y-axis direction, respectively. The pulse measuring device drives the measuring unit and/or the cavity according to the second target displacement information, so that the measuring unit is aligned to the wrist pulse point of the user and collects wrist pulse signals of the user through the pulse pressure sensor.

In some embodiments, the step S2322 includes: and the pulse measuring device drives the measuring unit and/or the cavity according to the second target displacement information and by combining the vertical distance information of the measuring unit and the pulse point of the wrist of the user, so that the measuring unit is aligned to the pulse point of the wrist of the user. In some embodiments, the second target displacement information is displacement information of the pulse measurement device driving the measurement unit or the cavity to move in the horizontal direction. The pulse measuring device drives the measuring unit and/or the cavity according to the second target displacement information and the vertical distance information between the measuring unit and the pulse point of the wrist of the user, so that the measuring unit is aligned with the pulse point of the wrist of the user.

In some embodiments, the step S2322 includes: the pulse measuring device determines target coordinate information of the measuring unit in a three-dimensional coordinate formed by the horizontal plane and the vertical direction of the measuring unit according to the second target displacement information and by combining the vertical distance information of the measuring unit and the pulse point of the wrist of the user; and driving the measuring unit according to the target coordinate information so as to enable the measuring unit to be aligned with the pulse point of the wrist of the user. In some embodiments, the target coordinate information includes coordinate information of the wrist pulse point of the user in the three-dimensional coordinate system. The pulse measuring device can determine the target coordinate information according to the second target displacement information and the vertical distance information delta z between the measuring unit and the wrist pulse point of the user. The pulse measuring device determines displacement information required to be executed by the measuring unit according to the target coordinate information, and directly drives the measuring unit to move the measuring unit from the current position of the measuring unit through a certain horizontal plane and a certain vertical direction until the measuring unit is aligned with a wrist pulse point of a user; or directly driving the measuring unit to make the measuring unit linearly move to the target coordinate information from the current position of the measuring unit, so that the measuring unit is aligned with the wrist pulse point of the user.

In some embodiments, the step S2322 includes: the pulse measuring device drives the measuring unit and/or the cavity to move on the horizontal plane according to the second target displacement information so as to enable the measuring unit to be aligned to a pulse point of the wrist of the user in the vertical direction; and driving the measuring unit and/or the cavity to move in the vertical direction of the horizontal plane according to the vertical distance information between the measuring unit and the pulse point of the wrist of the user, so that the measuring unit is aligned with the pulse point of the wrist of the user. In some embodiments, the pulse measurement device drives the measurement unit and/or the cavity to move on a horizontal plane according to the second target displacement information, so that the measurement unit is aligned with the pulse point of the wrist of the user in a vertical direction. The driving of the measurement unit and/or the chamber to move in the horizontal plane includes, but is not limited to, only driving the measurement unit or the chamber to move in the horizontal plane, driving the measurement unit to move in one direction (e.g., x-axis direction) in the horizontal plane and driving the chamber to move in another direction (e.g., y-axis direction) in the horizontal plane. The pulse measuring device drives the measuring unit and/or the cavity to move in the vertical direction of the horizontal plane according to the vertical distance information, so that the measuring unit is aligned with the wrist pulse point of the user.

In some embodiments, the step S2322 includes: the pulse measuring device drives the cavity to move on the horizontal plane according to the second target displacement information, so that the measuring unit is aligned to a pulse point of the wrist of the user in the vertical direction; and driving the measuring unit to move in the vertical direction of the horizontal plane according to the vertical distance information between the measuring unit and the pulse point of the wrist of the user, so that the measuring unit is aligned with the pulse point of the wrist of the user. In some embodiments, the chamber moves only in the horizontal plane and the measurement unit moves only in the vertical direction, thereby reducing the complexity of the apparatus and maintaining a certain driving accuracy. The driving sequence of the cavity and the measuring unit includes, but is not limited to, driving the cavity to move first and then driving the measuring unit to move, and driving the cavity and the measuring unit to move at the same time.

In some embodiments, the camera unit uses a depth camera; the method further comprises the following steps: step S24 (not shown), the pulse measurement apparatus determines vertical distance information between the measurement unit and the pulse point of the user' S wrist according to first depth information corresponding to the first reference point in the first image information and distance information between the position where the measurement unit is located and the camera unit when the first image information is captured. In some embodiments, the initial height of the image capturing unit is the same as the initial height of the measuring unit, that is, the image capturing unit and the measuring unit are at the same initial level when the image capturing unit captures the first image information and the second image information. The pulse measuring device is used for measuring the corresponding first depth information z of the first reference point in the first image information and the position of the measuring unit when the first image information is shotDetermining the vertical distance information between the measuring unit and the pulse point of the wrist of the user according to the distance information d between the measuring unit and the camera unit

In some embodiments, when the measurement unit is aligned with the pulse point of the user's wrist, the pulse pressure sensor physically contacts the pulse point of the user's wrist. In some embodiments, the measuring unit is aligned with the pulse point of the wrist of the user, and the pulse pressure sensor can acquire the pulse signal of the wrist of the user.

In some embodiments, the method further comprises: step S25 (not shown), the pulse measurement apparatus obtains the pressure signal of the pulse point of the user ' S wrist through the pulse pressure sensor, and adjusts the measurement unit and/or the cavity to move in the vertical direction of the horizontal plane according to the magnitude relationship between the amplitude information of the pressure signal and the threshold information of the pulse pressure signal, so that when the measurement unit is aligned with the pulse point of the user ' S wrist, the pulse pressure sensor physically contacts the pulse point of the user ' S wrist. In some embodiments, if the pulse measurement device drives the measurement unit or the cavity to align the measurement unit with the pulse point of the wrist of the user, the pulse pressure sensor may acquire a pressure signal of the pulse point of the wrist of the user, and adjust the measurement unit and/or the cavity to move in the vertical direction of the horizontal plane according to a magnitude relationship between amplitude information of the pressure signal and threshold information of the pulse pressure signal. For example, if the amplitude information of the pressure signal is less than or equal to the minimum pulse pressure signal threshold information, the pulse measurement device drives the measurement unit to move downwards in the vertical direction of the horizontal plane or drives the cavity to move upwards in the vertical direction of the horizontal plane according to a preset vertical direction displacement value; if the amplitude information of the pressure signal is larger than or equal to the maximum pulse pressure signal threshold value information, the pulse measuring device drives the measuring unit to move upwards in the vertical direction of the horizontal plane or the cavity to move downwards in the vertical direction of the horizontal plane according to a preset vertical direction displacement value, so that the measuring unit is more accurately aligned with the wrist pulse point of the user.

Fig. 7 shows a structure diagram of a pulse measurement device according to an embodiment of the present application, wherein the pulse measurement device includes a cavity for accommodating the wrist of the user, a camera unit for shooting the wrist of the user, and a measurement unit installed with a pulse pressure sensor and a reference point light source, and the pulse measurement device further includes a module 11, a module 12, a module 13, and a module 14. A module 11, when the reference point light source is in an on state, shooting first image information of the wrist of the user through the camera unit, wherein the reference point light source is imaged on a first reference point in the first image information; a second module 12 drives the measurement unit or the cavity to enable the measurement unit and the cavity to generate relative displacement on a horizontal plane, then the reference point light source is in an on state, the camera unit is used for shooting second image information of the wrist of the user, and the reference point light source is in an off state, the camera unit is used for shooting third image information of the wrist of the user, wherein the reference point light source is imaged on a second reference point in the second image information, and a pulse point of the wrist of the user is imaged on a third reference point in the third image information; a third module 13 determines a displacement mapping relationship between image coordinate displacement and actual physical displacement in the pulse measurement device according to first coordinate information of the first reference point in the first image information, second coordinate information of the second reference point in the second image information, and physical position change information corresponding to the relative displacement; a fourth module 14 determines second target displacement information of the pulse point of the measuring unit and the wrist of the user on a horizontal plane according to the second coordinate information, third coordinate information of the third reference point in the third image information, and the displacement mapping relation, so that the measuring unit is vertically aligned with the pulse point of the wrist of the user after passing through the second target displacement information. Here, the specific embodiments of the one-to-one module 11, the two-to-two module 12, the three-to-three module 13, and the four-to-four module 14 shown in fig. 7 are the same as or similar to the specific embodiments of the step S11, the step S12, the step S13, and the step S14, respectively, and therefore are not repeated herein and are included by reference.

In some embodiments, the pulse measurement device further comprises a five module 15 (not shown). The first-fifth module 15 drives the measuring unit and/or the cavity according to the second target displacement information so as to enable the measuring unit to be aligned with the pulse point of the wrist of the user; and acquiring the pulse signal of the wrist of the user through the pulse pressure sensor. Here, the specific implementation manner of the one-five module 15 is the same as or similar to that of the step S15, and therefore, the detailed description thereof is omitted, and the detailed description is incorporated herein by reference.

In some embodiments, the pulse measurement device further includes a six-module 16 (not shown). The sixth module 16 identifies the first reference point in the first image information and determines first coordinate information of the first reference point in the first image information. Here, the specific implementation of the sixth module 16 is the same as or similar to the foregoing step S16, and therefore, the detailed description thereof is omitted, and the detailed description is incorporated herein by reference.

In some embodiments, the pulse measurement device further comprises a seven module 17 (not shown). The seventeenth module 17 determines first target displacement information of the measuring unit or the cavity on the horizontal plane according to the first coordinate information; the secondary module 12 drives the measurement unit or the cavity according to the first target displacement information to enable the measurement unit and the cavity to generate a relative displacement matched with the first target displacement information on the horizontal plane, then the camera unit shoots second image information of the wrist of the user when the reference point light source is in an on state, and the camera unit shoots third image information of the wrist of the user when the reference point light source is in an off state, wherein the reference point light source is imaged on a second reference point in the second image information, and a pulse point of the wrist of the user is imaged on a third reference point in the third image information. Here, the specific implementation manners of the seventh module 17 and the second module 12 are the same as or similar to those of the foregoing steps S17 and S12, and therefore, the detailed descriptions thereof are omitted and are incorporated herein by reference.

In some embodiments, the seventy-one module 17 includes a seventy-one unit 171 (not shown), a seventy-two unit 172 (not shown). The seventy-one unit 171 determines a moving direction of the measuring unit or the cavity on the horizontal plane according to the first coordinate information and the first image information; the one-seven-two unit 172 determines the first target displacement information of the measuring unit or the cavity on the horizontal plane according to the moving direction and the displacement distance information. Here, the specific implementation manners of the one-seven-unit 171 and the one-seven-unit 172 are the same as or similar to those of the foregoing steps S171 and S172, and therefore, the detailed descriptions thereof are omitted, and the detailed descriptions thereof are incorporated herein by reference.

In some embodiments, the pulse measurement device further includes an eight module 18 (not shown). The eighth module 18 identifies the third reference point in the third image information and determines third coordinate information of the third reference point in the third image information. Here, the specific implementation manner of the eight module 18 is the same as or similar to that of the step S18, and therefore, the detailed description thereof is omitted and is incorporated herein by reference.

Fig. 8 is a structural view of a pulse measurement device for measuring a pulse signal according to an embodiment of the present application, wherein the pulse measurement device includes a cavity for accommodating a wrist of a user, a camera unit for photographing the wrist of the user, and a measurement unit having a pulse pressure sensor and a reference point light source, and the pulse measurement device further includes two modules 21, two modules 22, and two modules 23. The two-in-one module 21 shoots first image information of the wrist of the user through the camera unit when the reference point light source is in an on state, wherein the reference point light source is imaged on a first reference point in the first image information; the second module 22 drives the measurement unit or the cavity to make the measurement unit and the cavity generate relative displacement on a horizontal plane, then the reference point light source is in an on state, the camera unit is used for shooting second image information of the wrist of the user, and the reference point light source is in an off state, the camera unit is used for shooting third image information of the wrist of the user, wherein the reference point light source is imaged on a second reference point in the second image information, and a pulse point of the wrist of the user is imaged on a third reference point in the third image information; the second-third module 23 drives the measuring unit or the cavity to align the measuring unit to a pulse point of the wrist of the user according to first coordinate information of the first reference point in the first image information, second coordinate information of the second reference point in the second image information, third coordinate information of the third reference point in the third image information, and physical position change information corresponding to the relative displacement, and acquires a pulse signal of the wrist of the user through the pulse pressure sensor. Here, the embodiments corresponding to the two-in-one module 21, the two-in-two module 22, and the two-in-three module 23 shown in fig. 8 are the same as or similar to the embodiments of the step S21, the step S22, and the step S23, respectively, and therefore are not repeated herein and are included by reference.

In some embodiments, the two-three module 23 includes two-three-one unit 231 (not shown), two-three-two unit 232 (not shown). The two-three-one unit 231 determines a displacement mapping relationship between image coordinate displacement and actual physical displacement in the pulse measurement device according to first coordinate information of the first reference point in the first image information, second coordinate information of the second reference point in the second image information, and physical position change information corresponding to the relative displacement; the two-three-two unit 232 drives the measurement unit or the cavity to align the measurement unit to the pulse point of the wrist of the user according to the second coordinate information, the third coordinate information of the third reference point in the third image information, and the displacement mapping relationship, and acquires the pulse signal of the wrist of the user through the pulse pressure sensor. Here, the specific implementation manners of the two-three-one unit 231 and the two-three-two unit 232 are the same as or similar to the foregoing steps S231 and S232, and therefore, the detailed descriptions thereof are omitted and are incorporated herein by reference.

In some embodiments, the two-three-two unit 232 includes two-three-two-one subunit 2321 (not shown), two-three-two subunit 2322 (not shown), and two-three-two-three subunit 2323 (not shown). The second-third-first subunit 2321 determines second target displacement information of the pulse point of the measurement unit and the user's wrist on the horizontal plane according to the second coordinate information, the third coordinate information and the displacement mapping relationship; the second, third, second and second subunits 2322 drive the measuring unit and/or the cavity according to the second target displacement information, so that the measuring unit is aligned with the pulse point of the wrist of the user; the two-three-two-three subunit 2323 acquires the pulse signal of the wrist of the user through the pulse pressure sensor. Here, the specific implementation manners of the two-three-two-one subunit 2321, the two-three-two subunit 2322 and the two-three-two subunit 2323 are the same as or similar to the foregoing steps S2321, S2322 and S2323, and therefore, the detailed descriptions are omitted and are included herein by way of reference.

In some embodiments, the pulse measurement device further includes two or four modules 24 (not shown). The camera unit uses a depth camera; the second-fourth module 24 determines vertical distance information between the measuring unit and the pulse point of the wrist of the user according to first depth information corresponding to the first reference point in the first image information and distance information between the position of the measuring unit and the camera unit when the first image information is shot. Here, the specific implementation manner of the two-four module 24 is the same as or similar to that of the step S24, and therefore, the detailed description thereof is omitted and is incorporated herein by reference.

In some embodiments, the pulse measurement device further includes a twenty-five module 25 (not shown). The twenty-five module 25 obtains the pressure signal of the pulse point of the wrist of the user through the pulse pressure sensor, and adjusts the measuring unit and/or the cavity to move in the vertical direction of the horizontal plane according to the magnitude relation between the amplitude information of the pressure signal and the threshold information of the pulse pressure signal, so that when the measuring unit is aligned with the pulse point of the wrist of the user, the pulse pressure sensor physically contacts the pulse point of the wrist of the user. Here, the specific implementation manner of the twenty-five modules 25 is the same as or similar to that of the step S25, and therefore, the detailed description thereof is omitted, and the detailed description is incorporated herein by reference.

FIG. 9 illustrates an exemplary system that can be used to implement the various embodiments described herein;

in some embodiments, as shown in FIG. 9, the system 300 can be implemented as any of the devices in the various embodiments described. In some embodiments, system 300 may include one or more computer-readable media (e.g., system memory or NVM/storage 320) having instructions and one or more processors (e.g., processor(s) 305) coupled with the one or more computer-readable media and configured to execute the instructions to implement modules to perform the actions described herein.

For one embodiment, system control module 310 may include any suitable interface controllers to provide any suitable interface to at least one of processor(s) 305 and/or any suitable device or component in communication with system control module 310.

The system control module 310 may include a memory controller module 330 to provide an interface to the system memory 315. Memory controller module 330 may be a hardware module, a software module, and/or a firmware module.

System memory 315 may be used, for example, to load and store data and/or instructions for system 300. For one embodiment, system memory 315 may include any suitable volatile memory, such as suitable DRAM. In some embodiments, the system memory 315 may include a double data rate type four synchronous dynamic random access memory (DDR4 SDRAM).

For one embodiment, system control module 310 may include one or more input/output (I/O) controllers to provide an interface to NVM/storage 320 and communication interface(s) 325.

For example, NVM/storage 320 may be used to store data and/or instructions. NVM/storage 320 may include any suitable non-volatile memory (e.g., flash memory) and/or may include any suitable non-volatile storage device(s) (e.g., one or more Hard Disk Drives (HDDs), one or more Compact Disc (CD) drives, and/or one or more Digital Versatile Disc (DVD) drives).

NVM/storage 320 may include storage resources that are physically part of the device on which system 300 is installed or may be accessed by the device and not necessarily part of the device. For example, NVM/storage 320 may be accessible over a network via communication interface(s) 325.

Communication interface(s) 325 may provide an interface for system 300 to communicate over one or more networks and/or with any other suitable device. System 300 may wirelessly communicate with one or more components of a wireless network according to any of one or more wireless network standards and/or protocols.

For one embodiment, at least one of the processor(s) 305 may be packaged together with logic for one or more controller(s) (e.g., memory controller module 330) of the system control module 310. For one embodiment, at least one of the processor(s) 305 may be packaged together with logic for one or more controller(s) of the system control module 310 to form a System In Package (SiP). For one embodiment, at least one of the processor(s) 305 may be integrated on the same die with logic for one or more controller(s) of the system control module 310. For one embodiment, at least one of the processor(s) 305 may be integrated on the same die with logic for one or more controller(s) of the system control module 310 to form a system on a chip (SoC).

In various embodiments, system 300 may be, but is not limited to being: a server, a workstation, a desktop computing device, or a mobile computing device (e.g., a laptop computing device, a handheld computing device, a tablet, a netbook, etc.). In various embodiments, system 300 may have more or fewer components and/or different architectures. For example, in some embodiments, system 300 includes one or more cameras, a keyboard, a Liquid Crystal Display (LCD) screen (including a touch screen display), a non-volatile memory port, multiple antennas, a graphics chip, an Application Specific Integrated Circuit (ASIC), and speakers.

In addition to the methods and apparatus described in the embodiments above, the present application also provides a computer readable storage medium storing computer code that, when executed, performs the method as described in any of the preceding claims.

The present application also provides a computer program product, which when executed by a computer device, performs the method of any of the preceding claims.

The present application further provides a computer device, comprising:

one or more processors;

a memory for storing one or more computer programs;

the one or more computer programs, when executed by the one or more processors, cause the one or more processors to implement the method of any preceding claim.

It should be noted that the present application may be implemented in software and/or a combination of software and hardware, for example, implemented using Application Specific Integrated Circuits (ASICs), general purpose computers or any other similar hardware devices. In one embodiment, the software programs of the present application may be executed by a processor to implement the steps or functions described above. Likewise, the software programs (including associated data structures) of the present application may be stored in a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. Additionally, some of the steps or functions of the present application may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.

In addition, some of the present application may be implemented as a computer program product, such as computer program instructions, which when executed by a computer, may invoke or provide methods and/or techniques in accordance with the present application through the operation of the computer. Those skilled in the art will appreciate that the form in which the computer program instructions reside on a computer-readable medium includes, but is not limited to, source files, executable files, installation package files, and the like, and that the manner in which the computer program instructions are executed by a computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Computer-readable media herein can be any available computer-readable storage media or communication media that can be accessed by a computer.

Communication media includes media by which communication signals, including, for example, computer readable instructions, data structures, program modules, or other data, are transmitted from one system to another. Communication media may include conductive transmission media such as cables and wires (e.g., fiber optics, coaxial, etc.) and wireless (non-conductive transmission) media capable of propagating energy waves such as acoustic, electromagnetic, RF, microwave, and infrared. Computer readable instructions, data structures, program modules, or other data may be embodied in a modulated data signal, for example, in a wireless medium such as a carrier wave or similar mechanism such as is embodied as part of spread spectrum techniques. The term "modulated data signal" means a signal that has one or more of its characteristics set or changed in such a manner as to encode information in the signal. The modulation may be analog, digital or hybrid modulation techniques.

By way of example, and not limitation, computer-readable storage media may include volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules or other data. For example, computer-readable storage media include, but are not limited to, volatile memory such as random access memory (RAM, DRAM, SRAM); and non-volatile memory such as flash memory, various read-only memories (ROM, PROM, EPROM, EEPROM), magnetic and ferromagnetic/ferroelectric memories (MRAM, FeRAM); and magnetic and optical storage devices (hard disk, tape, CD, DVD); or other now known media or later developed that can store computer-readable information/data for use by a computer system.

An embodiment according to the present application comprises an apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform a method and/or a solution according to the aforementioned embodiments of the present application.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.

Claims

1. A method of adjusting a pulse measuring device, wherein the pulse measuring device comprises a cavity for receiving a wrist of a user, a camera unit for photographing the wrist of the user, and a measuring unit mounted with a pulse pressure sensor and a reference point light source, the method comprising:

2. The method of claim 1, wherein the method further comprises:

driving the measuring unit and/or the cavity according to the second target displacement information so as to enable the measuring unit to be aligned with a pulse point of the wrist of the user;

and acquiring the pulse signal of the wrist of the user through the pulse pressure sensor.

3. The method of claim 1, wherein the method further comprises:

the first reference point is identified in the first image information, and first coordinate information of the first reference point in the first image information is determined.

4. The method of claim 3, wherein the method further comprises:

determining first target displacement information of the measuring unit or the cavity on the horizontal plane according to the first coordinate information;

wherein the driving the measurement unit or the cavity causes the measurement unit and the cavity to generate a relative displacement on a horizontal plane, then the camera unit shoots a second image information of the wrist of the user when the reference point light source is in an on state, and the camera unit shoots a third image information of the wrist of the user when the reference point light source is in an off state, wherein the reference point light source is imaged on a second reference point in the second image information, and the imaging of the pulse point of the wrist of the user on the third reference point in the third image information comprises:

and driving the measuring unit or the cavity according to the first target displacement information to enable the measuring unit and the cavity to generate relative displacement matched with the first target displacement information on the horizontal plane, then shooting second image information of the wrist of the user through the camera unit when the reference point light source is in an on state, and shooting third image information of the wrist of the user through the camera unit when the reference point light source is in an off state, wherein the reference point light source is imaged on a second reference point in the second image information, and a pulse point of the wrist of the user is imaged on a third reference point in the third image information.

5. The method of claim 4, wherein said determining first target displacement information of the measurement unit or the cavity on the horizontal plane from the first coordinate information comprises:

determining the moving direction of the measuring unit or the cavity on the horizontal plane according to the first coordinate information and the first image information;

and determining first target displacement information of the measuring unit or the cavity on the horizontal plane according to the moving direction and the displacement distance information.

6. The method of claim 5, wherein the determining, from the first coordinate information and the first image information, a direction of movement of the measurement unit or the cavity in the horizontal plane comprises:

determining boundary distance information of the first reference point in the first image information according to the first coordinate information and the first image information;

if the boundary distance information is greater than or equal to a predetermined boundary distance threshold, determining that the moving direction of the measurement unit or the cavity on the horizontal plane includes a direction towards a boundary corresponding to the boundary distance information.

7. The method of claim 5, wherein the determining first target displacement information of the measurement unit or the cavity on the horizontal plane according to the moving direction and displacement distance information comprises:

determining, according to the first coordinate information, maximum forward movement distance information of the first reference point in the first image information along the movement direction, and maximum reverse movement distance information of the first reference point in the first image information along a direction opposite to the movement direction;

determining displacement distance information of the measuring unit or the cavity on the horizontal plane along the moving direction according to ratio information of the maximum forward moving distance information and the maximum reverse moving distance information and preset minimum displacement distance information;

8. The method of claim 1, wherein the method further comprises:

and identifying the third reference point in the third image information, and determining third coordinate information of the third reference point in the third image information.

9. A method of measuring a pulse signal using a pulse measuring device, wherein the pulse measuring device includes a cavity for receiving a wrist of a user, a camera unit for photographing the wrist of the user, and a measuring unit mounted with a pulse pressure sensor and a reference point light source, the method comprising:

10. The method of claim 9, wherein the driving the measurement unit or the cavity to align the measurement unit to a pulse point of the wrist of the user according to the first coordinate information of the first reference point in the first image information, the second coordinate information of the second reference point in the second image information, the third coordinate information of the third reference point in the third image information, and the physical position change information corresponding to the relative displacement, and acquiring the pulse signal of the wrist of the user by the pulse pressure sensor comprises:

and driving the measuring unit or the cavity to enable the measuring unit to align to a pulse point of the wrist of the user according to the second coordinate information, third coordinate information of the third reference point in the third image information and the displacement mapping relation, and acquiring a pulse signal of the wrist of the user through the pulse pressure sensor.

11. The method according to claim 10, wherein the driving the measurement unit or the cavity to align the measurement unit with a pulse point of the wrist of the user according to the second coordinate information, third coordinate information of the third reference point in the third image information, and the displacement mapping relationship, and acquiring the pulse signal of the wrist of the user through the pulse pressure sensor comprises:

determining second target displacement information of the pulse points of the measuring unit and the wrist of the user on the horizontal plane according to the second coordinate information, the third coordinate information and the displacement mapping relation;

12. The method as recited in claim 11, wherein said driving the measurement unit and/or the cavity to align the measurement unit to a pulse point of the wrist of the user according to the second target displacement information comprises:

and driving the measuring unit and/or the cavity according to the second target displacement information and by combining the vertical distance information of the measuring unit and the pulse point of the wrist of the user, so that the measuring unit is aligned with the pulse point of the wrist of the user.

13. The method of claim 12, wherein the driving the measurement unit and/or the cavity to align the measurement unit with a pulse point of the wrist of the user according to the second target displacement information comprises:

determining target coordinate information of the measuring unit in a three-dimensional coordinate formed by the horizontal plane and the vertical direction of the measuring unit according to the second target displacement information and by combining the vertical distance information of the measuring unit and the pulse point of the wrist of the user;

and driving the measuring unit according to the target coordinate information so as to enable the measuring unit to be aligned with the pulse point of the wrist of the user.

14. The method of claim 12, wherein the driving the measurement unit and/or the cavity to align the measurement unit with a pulse point of the wrist of the user according to the second target displacement information comprises:

according to the second target displacement information, driving the measuring unit and/or the cavity to move on the horizontal plane, so that the measuring unit is aligned with the pulse point of the wrist of the user in the vertical direction;

and driving the measuring unit and/or the cavity to move in the vertical direction of the horizontal plane according to the vertical distance information between the measuring unit and the pulse point of the wrist of the user, so that the measuring unit is aligned with the pulse point of the wrist of the user.

15. The method of claim 14, wherein the driving the measurement unit and/or the cavity to align the measurement unit with a pulse point of the wrist of the user according to the second target displacement information comprises:

driving the cavity to move on the horizontal plane according to the second target displacement information so as to enable the measuring unit to be aligned to a pulse point of the wrist of the user in the vertical direction;

and driving the measuring unit to move in the vertical direction of the horizontal plane according to the vertical distance information between the measuring unit and the pulse point of the wrist of the user, so that the measuring unit is aligned with the pulse point of the wrist of the user.

16. The method of any of claims 11 to 15, wherein the camera unit uses a depth camera;

the method further comprises the following steps:

and determining the vertical distance information between the measuring unit and the pulse point of the wrist of the user according to the first depth information corresponding to the first reference point in the first image information and the distance information between the position of the measuring unit and the camera unit when the first image information is shot.

17. The method of claim 9, wherein the pulse pressure sensor physically contacts the pulse point of the user's wrist when the measurement unit is aligned with the pulse point of the user's wrist.

18. The method of claim 9, wherein the method further comprises:

the pulse pressure sensor is used for acquiring a pressure signal of a pulse point of the wrist of the user, and adjusting the measuring unit and/or the cavity to move in the vertical direction of the horizontal plane according to the magnitude relation between the amplitude information of the pressure signal and the threshold information of the pulse pressure signal, so that when the measuring unit is aligned with the pulse point of the wrist of the user, the pulse pressure sensor is in physical contact with the pulse point of the wrist of the user.

19. The utility model provides a pulse measuring device, its characterized in that, pulse measuring device is including the cavity that is used for holding user's wrist, be used for shooing user's wrist's the unit of making a video recording to and install the measuring element of pulse pressure sensor and reference pointolite, pulse measuring device still includes:

a processor; and

a memory arranged to store computer executable instructions that, when executed, cause the processor to perform the method of any of claims 1 to 18.

20. A computer-readable medium storing instructions that, when executed by a computer, cause the computer to perform operations of any of the methods of claims 1-18.