Intraocular pressure measurement apparatus, method for identifying left and right eyes, and storage medium

Abstract

Provided in the present application are an intraocular pressure measurement apparatus, a method for identifying left and right eyes, and a storage medium. The intraocular pressure measurement apparatus comprises: a main body base, a transmitter, at least one receiver, and a controller, wherein the main body base comprises a probe; the transmitter is arranged on the main body base, and is used for transmitting a test signal, and the test signal is adjusted to be propagated towards a preset angle range; the receiver is arranged on the main body base, and is used for receiving a reflected signal of the test signal; the controller is connected to both the transmitter and the receiver, and the transmitter and the receiver are located on the same side of the probe; and the controller is configured to determine, according to the signal strength of the reflected signal, whether the eye currently under measurement is a left eye or a right eye, or when the test signal carries a code, the controller is configured to determine, according to the code carried in the reflected signal, whether the eye currently under measurement is a left eye or a right eye.

Description

Intraocular pressure measuring device, left-right eye identification method, and storage medium

[0001] Cross Reference

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on June 16, 2023, with application number 202310723043.1, and invention name “Left and right eye recognition method, device, equipment and medium”, and the Chinese patent application filed with the China Patent Office on July 21, 2023, with application number 202321941786.8, and invention name “Intraocular pressure measurement device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of medical device technology, and in particular to an intraocular pressure measuring device, a left-right eye identification method, and a storage medium. Background Art

[0004] In recent years, due to various factors, eye diseases and unhealthy eye use have led to an increasing number of people suffering from various conditions such as myopia, glaucoma, fundus lesions, and cataracts. Extensive eye examinations have become the norm. Eye examinations require differentiating between the left and right eyes. Traditionally, manual recording is a common practice, which can easily lead to errors in recording results and compromise diagnosis and treatment.

[0005] Summary of the Invention

[0006] The present application provides an intraocular pressure measurement device that can automatically identify the left and right eyes.

[0007] An embodiment of the first aspect of the present application provides an intraocular pressure measuring device, the intraocular pressure measuring device comprising:

[0008] A main body base, the main body base including a probe;

[0009] A transmitter is provided on the main body base and is used to transmit a test signal, wherein the test signal is adjusted to propagate toward a preset angle range;

[0010] at least one receiver, the receiver being disposed on the main body base and configured to receive a reflected signal of the test signal;

[0011] A controller is connected to a transmitter and a receiver, respectively, and the transmitter and the receiver are located on the same side of the probe. The controller is used to determine whether the currently measured eye is the left eye or the right eye based on the signal strength of the reflected signal. Alternatively, when the test signal carries a code, the controller is used to determine whether the currently measured eye is the left eye or the right eye based on the code carried by the reflected signal.

[0012] An embodiment of a second aspect of the present application provides a left-right eye recognition method, which is applied to the aforementioned intraocular pressure measurement device, the intraocular pressure measurement device including a probe, a transmitter, a first receiver, and a second receiver, and the method includes:

[0013] When the probe is opposite to the eye being tested, the test signal emitted by the control transmitter is adjusted to propagate toward a preset angle range, the test signal being a first test signal or a second test signal, the first test signal not carrying a code, and the second test signal having an initial code value;

[0014] Controlling the first receiver to receive a first reflected signal of the test signal, and controlling the second receiver to receive a second reflected signal of the test signal;

[0015] When the transmitter transmits a first test signal, the first signal strength of the first reflected signal is compared with the second signal strength of the second reflected signal, or the difference between the first signal strength of the first reflected signal and the second signal strength of the second reflected signal is compared with a preset threshold value to determine whether the currently measured eye is the left eye or the right eye; or

[0016] When the transmitter transmits the second test signal, the initial code value is compared with the first code value of the first reflection signal and the second code value of the second reflection signal to determine whether the currently measured eye is the left eye or the right eye.

[0017] The embodiment of the third aspect of the present application provides a left-right eye identification method, wherein the intraocular pressure measurement device includes a controller, a transmitter, and a receiver, and the method includes:

[0018] When the probe is opposite to the eye, the test signal emitted by the control transmitter is adjusted or set to be directed toward a preset angle range, the test signal being a first test signal or a second test signal, the first test signal not carrying a code, and the second test signal having an initial code value;

[0019] receiving, by a receiver, a reflected signal generated by the test signal being reflected from the face and / or the environment;

[0020] According to the signal strength or code of the reflected signal, it is determined whether the eye currently being measured is the left eye or the right eye.

[0021] An embodiment of the fourth aspect of the present application provides a computer-readable storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, the left and right eye recognition methods provided in the second and third aspects are implemented.

[0022] An embodiment of a sixth aspect of the present application provides a left-right eye recognition method, which is applied to an intraocular pressure measurement device, the intraocular pressure measurement device including a measurement unit, a transmitter, and a receiver, and the method includes:

[0023] When the measuring part is opposite to the eye, a test signal is emitted at a preset angle by the transmitter, the test signal including a first light signal or a second light signal, the first light signal does not carry a code, and the second light signal carries a code, the preset angle is an angle toward the direction of the first eye, the first eye is one of the left eye and the right eye, and the second eye is the other of the left eye and the right eye;

[0024] receiving, by a receiver, a reflected signal generated by the test signal being reflected from the face and / or the environment;

[0025] According to the signal strength or code of the reflected signal, it is determined whether the eye currently being measured is the left eye or the right eye.

[0026] An embodiment of a seventh aspect of the present application provides an intraocular pressure measuring device, the intraocular pressure measuring device comprising:

[0027] Main base;

[0028] The transmitter is arranged on the main body base and is used to transmit a test signal. The transmission angle of the test signal transmitted by the transmitter is adjustable;

[0029] a first receiver;

[0030] A second receiver, the first receiver and the second receiver are arranged on the main body base, the first receiver and the second receiver are respectively arranged at both ends of the transmitter along the first direction, the first receiver is used to receive a first reflected signal of the test signal, and the second receiver is used to receive a second reflected signal of the test signal;

[0031] A controller is connected to the transmitter, the first receiver and the second receiver respectively, wherein:

[0032] The controller is used to determine whether the currently measured eye is the left eye or the right eye according to the signal strength of the first reflection signal and the second reflection signal.

[0033] In the intraocular pressure measurement device, left-right eye recognition method, and storage medium provided in the embodiments of the present application, the intraocular pressure measurement device includes a main body base, a transmitter, at least one receiver, and a controller. The transmitter transmits a test signal, and the receiver receives a reflected signal from the test signal. By analyzing the reflected signal, the receiver can automatically identify whether the eye being measured is the left or right eye, thereby improving the accuracy and intelligence of left-right eye recognition. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0035] FIG1 is a schematic diagram of the intraocular pressure measurement device for measuring the left eye provided by the embodiments of the first part of the present application;

[0036] FIG2 is a schematic structural diagram of an intraocular pressure measurement device provided in the embodiments of the first part of this application;

[0037] FIG3 is a cross-sectional view of a partial structure of an intraocular pressure measurement device according to an embodiment of the first part of the present application;

[0038] FIG4 is a connection diagram of a controller provided by the embodiments of the first part of this application;

[0039] FIG5 is a waveform diagram of a first reflected signal and a second reflected signal provided by the embodiment of the first part of the present application;

[0040] FIG6 is a waveform diagram of another first reflected signal and a second reflected signal provided by the embodiment of the first part of the present application;

[0041] FIG7 is a schematic structural diagram of an intraocular pressure measurement device provided in accordance with an embodiment of the second part of this application;

[0042] FIG8 is a schematic diagram showing the principle of measuring the left eye using the intraocular pressure measuring device provided in the embodiments of the second part of the present application;

[0043] FIG9 is a schematic diagram showing the principle of measuring the right eye using the intraocular pressure measurement device provided in the embodiments of the second part of the present application;

[0044] FIG10 is a schematic structural diagram of a left-right eye recognition device provided in an embodiment of the present application;

[0045] FIG11 is a flow chart of the left-eye and right-eye recognition method provided in an embodiment of the present application.

[0046] Explanation of the accompanying drawings: X, first direction; Z, second direction; Y, third direction; 1. Main body base; 2. Function button; 3. Receiver; 3a, first receiver; 3b, second receiver; 4. Transmitter; 5. Test signal; 6. Reflection signal; 6a, first reflection signal; 6b, second reflection signal; 7a, nose; 7b, left cheek; 7c, right cheek; 8, left eye; 9, right eye; 10, measurer's head; 11. Controller; 12. Main body; 121, probe; 122, accommodating chamber; 123, probe sleeve; 124, coil; 125, coil bracket; 50, protrusion. DETAILED DESCRIPTION

[0047] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without the need for some of these specific details.

[0048] In order to better understand the present application, the intraocular pressure measurement device, left and right eye recognition method and storage medium of the embodiments of the present application are described in detail below with reference to Figures 1 to 11.

[0049] Embodiments of the first aspect of the present application provide an intraocular pressure measurement device. As shown in Figures 1 to 4, some embodiments of the first aspect of the present application provide an intraocular pressure measurement device, including a main body base 1, a transmitter 4, at least one receiver 3, and a controller 11; the main body base 1 includes a probe 121, and the transmitter 4 and the receiver 3 are both arranged on the main body base 1 and located on the same side of the probe 121; the transmitter 4 is used to transmit a test signal 5, and the test signal 5 is adjusted to propagate toward a preset angle range; the receiver 3 is used to receive a reflected signal of the test signal 5, and the controller 11 is used to determine whether the eye currently being measured is the left eye or the right eye based on the signal strength of the reflected signal;

[0050] Alternatively, in the case where the test signal carries a code, the controller 11 is configured to determine whether the currently measured eye is the left eye or the right eye according to the code carried by the reflected signal.

[0051] In other embodiments of the first aspect of the present application, in the intraocular pressure measurement device provided, as shown in Figures 7 to 9, a transmitter 4 and a receiver 3 are provided. The transmitter 4 is oriented toward a preset angle range and is used to transmit a test signal toward the preset angle range. The eye currently being measured is determined to be the left eye or the right eye based on the signal strength of the reflected signal from the preset angle range received by the receiver 3 or the code carried by the reflected signal. In an alternative embodiment, the transmitter and receiver of Figure 7 are interchanged, in which case the transmitter is located in the middle and is used to transmit the test signal to all angles. The receiver is located on one side of the transmitter and is used to receive the reflected signal of the test signal from the preset angle range.

[0052] Part 1:

[0053] In some embodiments, as shown in Figures 1 to 4, at least one receiver 3 includes a first receiver 3a and a second receiver 3b, and the first receiver 3a and the second receiver 3b are arranged on the main body base 1, and the first receiver 3a and the second receiver 3b are arranged at both ends of the transmitter 4 along the first direction X. The first receiver 3a, the transmitter 4, and the second receiver 3b are all located on the same side of the probe 121, and the test signal 5 emitted by the transmitter 4 is adjusted to be directed toward the first angle range and toward the second angle range. The first receiver 3a is used to receive the first reflected signal 6a of the test signal 5 emitted toward the first angle range, and the second receiver 3b is used to receive the second reflected signal 6b of the test signal 5 emitted toward the second angle range; the controller 11 is connected to the transmitter 4, the first receiver 3a and the second receiver 3b, respectively, and the controller 11 is used to determine whether the currently measured eye is the left eye or the right eye based on the signal strength of the first reflected signal 6a and the second reflected signal 6b.

[0054] Optionally, the first receiver 3a, the transmitter 4, and the second receiver 3b are sequentially spaced apart along the first direction X. The probe 121 can move along a third direction Y, and the first direction X and the third direction Y are intersecting. When using the intraocular pressure measurement device provided by the present application, the third direction Y can be the direction from the intraocular pressure measurement device to the eye to be measured.

[0055] Optionally, in an embodiment of the present application, the main base 1 serves as the main structure of the intraocular pressure measuring device, which has good structural strength and wear resistance. There are many ways to set up the main base 1. For example, the main base 1 can use a base platform to support other components. For example, the main base 1 is the body of the intraocular pressure measuring device. Specifically, the transmitter 4, the first receiver 3a, the second receiver 3b and the controller 11 can all be directly fixed on the base platform. The base platform can have appropriate weight and stability to ensure the stability of the intraocular pressure measuring device. The transmitter 4, the first receiver 3a, and the second receiver 3b are located on the same side of the probe 121. The present application does not limit the specific setting method of the main base 1, as long as other components can be installed on it.

[0056] Optionally, the test signal 5 emitted by the transmitter 4 can be set, adjusted or directed to propagate toward a preset angle range. Under this setting, the transmission propagation angle range of the transmitter 4 is predetermined and cannot be adjusted or changed. Of course, the transmitter 4 can also be equipped with an automatic adjustment function, which can automatically adjust the transmission angle of the transmitter 4 through a built-in motor or drive system according to different measurement requirements and different algorithm controls. Or the transmission angle of the transmitter 4 can be manually adjusted by the user to adapt to different eye structures. For example, in an embodiment of the present application, as shown in Figure 2, a protrusion 50 is provided on the side of the transmitter 4 facing away from the probe 121, and the test signal of the transmitter 4 is guided toward a first angle range between the first receiver 3a and the protrusion 50, and toward a second angle range between the second receiver 3b and the protrusion 50. The preset angle range may include a first angle range and a second angle range.

[0057] Alternatively, in some alternative embodiments, the first receiver 3a and the second receiver 3b may both be configured to receive reflected signals from the test signal 5 within a predetermined angular range; or may be configured to have multiple fixed or adjustable positions. By placing receivers at different positions, multiple reflected signals can be obtained and utilized in combination to perform more accurate measurements, further improving the accuracy of the intraocular pressure measurement device in distinguishing between the left and right eyes. For example, as shown in Figures 1 and 2, the first receiver 3a receives a first reflected signal 6a from a test signal within a first angular range, and the second receiver 3b receives a second reflected signal 6b from a test signal within a second angular range.

[0058] Optionally, the connection between the controller 11 and the transmitter 4, the first receiver 3a and the second receiver 3b may be a communication connection or an electrical connection.

[0059] As shown in Figure 1, in this embodiment of the present application, the first receiver 3a and the second receiver 3b are used to respectively detect infrared light, visible light, or other invisible light reflected from the face or outside the face of the examinee by the test signal 5. This allows the controller 11 to determine whether the left or right eye is currently being measured based on the different characteristics of the received first reflected signal 6a and the second reflected signal 6b. Specifically, the controller 11 can extract information about the reflected signals by measuring parameters such as the intensity, frequency, and phase of the first reflected signal 6a and the second reflected signal 6b, analyze the reflection of the test signal 5, and use this information to identify whether the eye currently being measured is the left or right eye.

[0060] For example, when the intraocular pressure measurement device is placed directly in front of the eye being measured, and the probe 121 is aligned and centered on the cornea of ​​the eye being measured, the alignment of the intraocular pressure measurement device is complete, and the next measurement step can be performed. At this point, left and right eye identification begins. As shown in Figures 1 and 2, assuming the eye being measured is the first eye 9 (left eye), the test signal 5 emitted by the transmitter 4 is directed or adjusted to be directed at a certain angle to the left and right sides of the left eye 9. The test signal in the first angular range directed to the left is mainly emitted from the side of the face (e.g., the ear) and illuminates the back of the face. The test signal in the second angular range directed to the right is emitted toward the face, but is blocked and reflected by the nose 7a, left cheek 7b, and right cheek 7c of the person being measured. The reflected light generated by the test signals in the two preset angular ranges is received by the first receiver 3a and the second receiver 3b, respectively. The controller 11 can determine whether the left or right eye is being measured based on the characteristics and intensity of the received reflected light. Those skilled in the art will understand that the principle of measuring the second eye 8 (right eye) is similar.

[0061] In an embodiment of the present application, the test signal 5 emitted by the transmitter 4 is adjusted to be oriented toward a preset angle range. The preset angle range is designed to adapt to the shape characteristics of the human face, so that the test signal 5 can have different reflection effects when measuring different eyes, thereby being able to determine whether the currently measured eye is the left eye or the right eye based on the different characteristics between the first reflection signal 6a and the second reflection signal 6b. In an embodiment of the present application, the specific value of the preset angle range can be adjusted according to the face shape of the human face. The present application does not limit the method for determining the preset angle range, as long as it can achieve different reflection effects for the test signal 5 when measuring different eyes.

[0062] According to the above description, the first reflected signal 6a and the second reflected signal 6b received by the receiver 3 are the reflected signals of the test signal 5 after being irradiated on the human face or reflected back from the environment, and there is a difference in the signal strength of the two.

[0063] In other embodiments, if the test signal contains coded information, left-eye and right-eye identification can be achieved through decoding analysis. Based on the characteristics of the coding, such as a specific frequency, timing, pattern, or coding value, the received reflected signal is compared with the coding of the test signal to determine the eye currently being measured. For example, in the embodiment of the present application, whether the reflected signal received by the first receiver 3a and the second receiver 3b is a reflection of the test signal 5 can be determined based on the identification information of the test signal 5 itself. Specifically, the identification information can be a coding symbol unique to the test signal 5. By reading this coding symbol, it can be determined whether the reflected signal received by the first receiver 3a and the second receiver 3b is a signal reflected back from the test signal 5.

[0064] Optionally, you can set receiver parameters, including gain and sensitivity, to ensure that the receiver can receive the reflected signal from the face and measure the signal strength. The settings of gain, sensitivity, and other parameters will affect the receiver's ability to receive and analyze the reflected signal.

[0065] In summary, in the above embodiment, the intraocular pressure measurement device includes a main base 1, a transmitter 4, a first receiver 3a, a second receiver 3b, and a controller 11. The test signal 5 emitted by the transmitter 4 is adjusted to be directed toward a preset angle range. Since the first receiver 3a and the second receiver 3b are located at opposite ends of the transmitter 4, the first receiver 3a and the second receiver 3b can respectively receive the first reflected signal 6a and the second reflected signal 6b reflected from the test signal 5 within different angle ranges at different locations. Furthermore, the controller 11 can determine whether the eye currently being measured is the left eye or the right eye based on the difference between the first reflected signal 6a and the second reflected signal 6b, thereby enabling the intraocular pressure measurement device to automatically identify the left and right eyes. By respectively arranging the first receiver 3a and the second receiver 3b at different locations, the reliability and accuracy of the automatic identification of the left and right eyes by the intraocular pressure measurement device are improved.

[0066] In addition to the above, the intraocular pressure measurement device of the embodiment of the first part of this application also includes the following features.

[0067]

Main body

[0068] As shown in Figure 3, the main base 1 includes a main body 12, and the main body 12 includes a probe sleeve 123 extending along the third direction Y. The probe sleeve 123 has a accommodating cavity 122. The probe 121 is movably arranged in the accommodating cavity 122. Part of the probe 121 extends out of the probe sleeve 123 along the third direction Y. The probe 121 is used to measure the intraocular pressure of the eye.

[0069] Optionally, the accommodating cavity 122 is a cavity or space, and its shape can be designed according to the size and shape of the probe 121. The accommodating cavity 122 can be cylindrical, conical or other shapes. This application does not limit the specific shape of the accommodating cavity 122 as long as it can accommodate the probe 121.

[0070] The main body 12 is provided with an opening, specifically, a probe sleeve 123. When intraocular pressure is to be measured, a probe 121 can be extended from the opening. When the measurement is complete, the probe 121 is housed within a receiving cavity 122 formed by the probe sleeve 123. The probe 121 can be configured in a suitable shape for contact with the eye to ensure accurate intraocular pressure measurement, such as a cone, cylinder, or ellipse. The end of the probe 121 closest to the eye is made of an elastic material, which is harmless to the eye.

[0071] The main body 12 further includes a coil support 125 and a coil 124 . The coil support 125 is sleeved on the outside of the probe sleeve 123 . The coil 124 is wound on the coil support 125 and extends along the third direction Y. The coil 124 is used to drive the probe 121 to move along the third direction Y to measure the intraocular pressure of the user's eye.

[0072] In these alternative embodiments, by placing the probe 121 within the housing chamber 122, a more stable measurement environment can be provided. The housing chamber 122 can reduce the impact of external environmental interference factors on the probe 121, such as wind, vibration, or light changes. This helps ensure the stability and accuracy of the probe 121 during the measurement process.

[0073]

Function buttons

[0074] The intraocular pressure measuring device further includes a function button 2 , which is disposed on the main body base 1 . The function button 2 is used to trigger the transmitter 4 to transmit a test signal 5 .

[0075] Optionally, the main body 12 is used to mount and drive the probe 121. The transmitter 4, first receiver 3a, and second receiver 3b are all mounted on the main base 1, located on the same side of the main body 12. The main body 12 is the core component of the intraocular pressure measurement device, providing stable support and positioning for the probe 121.

[0076] The main body base 1 can be connected to the transmitter 4 via an interface to ensure stable installation of the transmitter 4. For example, a rigid circuit board is provided within the main body base 1, and the main body 12, transmitter 4, first receiver 3a, and second receiver 3b are all fixedly or detachably connected to the rigid circuit board. Alternatively, the transmitter 4 can be secured to the main body base 1 using screws, a fixing clamp, or welding, specifically to the circuit board. This provides a secure connection and ensures the stability of the transmitter 4 during use.

[0077] There are many ways to set up the function button 2. For example, the function button 2 can be a physical button, which is provided on the outer surface of the main body base 1 of the intraocular pressure measurement device. The user triggers the transmitter 4 to transmit the test signal 5 by pressing the corresponding button. Optionally, the function button 2 can also be a touch-sensitive button, which is provided on the outer surface of the main body base 1. The user only needs to touch the button surface to trigger the transmitter 4 to transmit the test signal 5, thereby improving the sensitivity of the function button 2. In other embodiments, the function button 2 can also be a virtual button, which is implemented by touching the graphical interface on the screen or display panel. The function button 2 can also be triggered by voice control. By integrating voice recognition technology, the user can trigger the transmitter 4 to transmit the test signal 5 by using a predefined password or instruction. This setting method allows the user to operate through voice commands without touching the device.

[0078] The triggering of the function button 2 to the transmitter 4 to transmit the test signal 5 can be direct or indirect. For example, after the function button 2 is pressed, the intraocular pressure is measured first, and then the transmitter 4 is emitted after the measurement is completed, automatically completing the detection of the left and right eyes.

[0079]

Modulation parts

[0080] During the test, when the first and second receivers 3a and 3b receive the first and second reflected signals 6a and 6b, they may also receive ambient light. This ambient light is typically a DC signal and can be directly filtered out through filtering, such as by using a high-pass filter or a low-pass filter for electronic filtering to remove the DC signal. However, in actual measurement environments, some modulated light may also be present, which cannot be filtered out through the aforementioned DC signal filtering methods. This modulated light often has a different frequency than the test signal 5. Therefore, in some embodiments of the present application, the modulated light is filtered through a configuration.

[0081] Specifically, in some optional embodiments, the intraocular pressure measuring device further includes a modulator (not shown), which is disposed on the receiver 3 and is used to filter the modulated light in the reflected signal.

[0082] For example, in some embodiments, the modulator is disposed on the first receiver 3 a and the second receiver 3 b , respectively, and the modulator is used to filter the modulated light in the first reflected signal 6 a and the second reflected signal 6 b .

[0083] Alternatively, the modulation element can be embedded in a specific location within the first and second receivers 3a, 3b. For example, the modulation element can be directly integrated into the receivers, tightly integrating them and achieving modulation and filtering of the optical signal. The modulation element can also be clamped to the first and second receivers 3a, 3b using a clamping mechanism or bracket. Alternatively, the modulation element can be fixed to the first and second receivers 3a, 3b using a suitable adhesive or viscous material.

[0084] Specifically, the modulator can be an optical filter, which filters signals by selectively passing or blocking signals of specific frequencies. For example, a bandpass filter can be used to pass light of a desired frequency, while a blocking filter can be used to block light of a different frequency. More specifically, interference filters, prism filters, or refractive filters can also be used to filter optical signals.

[0085]

Adjustment status

[0086] In some optional embodiments, the intraocular pressure measuring device has an adjustment state, that is, the first receiver 3a and the second receiver 3b include an adjustment state; in the adjustment state, the receiver 3 collects multiple ambient lights of the initial ambient light of the environment in which the face of the person being measured is located at multiple positions, that is, when the first receiver 3a and the second receiver 3b are provided, the first receiver 3a and the second receiver 3b both collect multiple ambient lights of the initial ambient light of the environment in which the face of the person being measured is located at multiple positions, so that the controller 11 determines the signal reference intensity according to the ambient light parameters of the multiple ambient lights.

[0087] Optionally, in the embodiment of the present application, the adjustment state is the adjustment stage before the intraocular pressure measurement device performs measurement.

[0088] The ambient light may specifically be the ambient light of the current measurement environment. Specifically, the ambient intensity may be the light intensity of the current ambient light. The signal reference intensity is then obtained by analyzing the characteristics of the ambient light. It should be noted that there may be interference signals such as cluttered radio waves that interfere with the transmitter 4 transmitting the test signal 5 in the ambient light. Therefore, before determining the signal reference intensity, these interference signals may be filtered to improve the reliability of the signal reference intensity and further improve the accuracy of left and right eye recognition. The filtering method for the interference source can refer to the description of the above-mentioned modulation component, and this application will not repeat them here.

[0089] A first receiver 3a and a second receiver 3b are arranged to measure and record ambient light parameters at each location. These parameters may include light intensity, interference signal strength, and the like. The obtained ambient light parameters are then stored or recorded for subsequent use. In these optional embodiments, multiple ambient light parameters of the initial ambient light in the environment surrounding the measured face are collected, providing a comprehensive understanding of the ambient light, thereby comprehensively understanding the lighting conditions in the environment surrounding the face, and improving the accuracy and reliability of the measurement.

[0090] Furthermore, in an embodiment of the present application, the collected ambient light parameters can be collated and analyzed. For example, the average value, variance, or other statistical indicators of the light intensity and interference signal can be calculated to obtain a comprehensive assessment of the ambient lighting conditions and interference level. Based on the results of the analysis and a preset algorithm or rule, the signal baseline strength is determined. For example, linear fitting, curve fitting, grayscale calibration, and other methods can be used to determine the signal baseline strength. Subsequently, tests can be performed under different environmental conditions, and the measured results can be compared with the expected results to verify the accuracy and stability of the signal baseline strength.

[0091] In these optional embodiments, during the adjustment stage of the first receiver 3a and the second receiver 3b, by analyzing multiple ambient light parameters and comprehensively considering the influence of various environmental factors such as light intensity and interference signals on the measurement, the signal reference strength suitable for the current environment is determined, thereby improving the consistency and reliability of the measurement of the intraocular pressure measurement device.

[0092] In the above adjustment state, the controller 11 is used to determine the transmission signal strength of the test signal 5 according to the signal reference strength, and control the transmitter 4 to transmit the test signal 5 with the transmission signal strength.

[0093] In an embodiment of the present application, as shown in Figure 4, the controller 11 is the central component responsible for controlling the entire intraocular pressure measurement device. The controller 11 can be composed of a microprocessor or an embedded system, and has signal processing and control functions. The transmitter 4 is used to transmit the test signal 5, and can be composed of a light source, a transmitting optical element and a transmitting circuit. The first receiver 3a and the second receiver 3b are photosensitive elements for receiving the first reflected signal 6a and the second reflected signal 6b of the test signal 5, respectively, and have a photoelectric conversion function to convert the received light signal into an electrical signal. When in the adjustment state, the controller 11 can calculate based on the signal reference strength and generate a corresponding control signal, and transmit the control signal to the transmitter 4 through a circuit or a communication line, for adjusting the parameters such as the transmitting current, power or pulse width of the transmitter 4 to achieve the required transmission signal strength.

[0094] For example, when the measurement environment is dark, the emission signal strength needs to be reduced to ensure that the measurement can be carried out correctly and the measurement stability is guaranteed; when the measurement environment is bright, the emission signal strength needs to be increased to prevent the ambient light from being too strong, resulting in inaccurate measurement. This setting of adjusting the emission signal strength as the measurement environment changes further enhances the stability of the measurement.

[0095] Optionally, in an embodiment of the present application, in order to improve the anti-interference ability during detection, a filter can be set on the transmitter 4, which can perform pulse width modulation on the test signal 5 emitted by the transmitter 4 to increase the stability of the measurement of the intraocular pressure measurement device.

[0096] In these optional embodiments, by adjusting the transmitted signal strength according to the signal reference strength, the test signal 5 can reach a suitable strength under different environmental conditions to ensure reliable measurement results.

[0097] In one embodiment, the intraocular pressure measuring device also includes a correction component, which is arranged on the receiver 3, that is, when a first receiver 3a and a second receiver 3b are provided, the correction component is respectively arranged on the first receiver 3a and the second receiver 3b, and the correction component is used to correct the signal strength of the first reflected signal 6a and the second reflected signal 6b.

[0098] Optionally, a correction component is provided on the first receiver 3a and the second receiver 3b, respectively, so as to correct the optical signals received by the first receiver 3a and the second receiver 3b. The correction component can be a transparent or translucent optical element, such as a filter, an attenuator, a reflector, etc. The specific shape can match the photosensitive area of ​​the receiver to ensure that the correction component can accurately correct the first reflected signal 6a and the second reflected signal 6b received by the first receiver 3a and the second receiver 3b. The correction component can be made of specific optical materials with appropriate optical properties to achieve the desired signal correction effect. The correction component can also be fixed to the first receiver 3a and the second receiver 3b using a clamping mechanism, adhesive or other appropriate fixing methods. Ensure a stable connection between the correction component and the receiver and accurately correct the optical signal.

[0099] Optionally, in one embodiment of the present application, the signal strength of the first reflected signal 6a and the second reflected signal 6b can be first measured and recorded under preset conditions as a preset signal reference strength. The controller 11 then uses the first receiver 3a and the second receiver 3b to receive the first reflected signal 6a and the second reflected signal 6b reflected from the face of the person being measured. By comparing the signal strengths of the received first reflected signal 6a and the second reflected signal 6b with the signal reference strengths, a correction value is calculated. The received first reflected signal 6a and the second reflected signal 6b are then added to or subtracted from the correction value to obtain the corrected first reflected signal 6a and the corrected second reflected signal 6b. The purpose of the correction is to correct the influence of environmental factors on the reflected signal to improve the accuracy and stability of the measurement results.

[0100] Optionally, in another feasible embodiment of the present application, the intraocular pressure measurement device will enter an adjustment state before starting to work, and the controller 11 will first analyze the ambient light characteristics collected by the first receiver 3a and the second receiver 3b (including but not limited to intensity, interference source, etc.) to obtain the ambient light parameters of the initial ambient light as a reference baseline value for subsequent measurements. The role of this reference baseline is to: (1) when the test signal 5 emitted by the transmitter 4 illuminates the face and is reflected by the face, the signal intensity of the first reflected signal 6a and the second reflected signal 6b received by the first receiver 3a and the second receiver 3b during normal measurement can be corrected to obtain a signal increment; (2) the emission intensity of the transmitter 4 can be adjusted in real time according to the ambient light characteristics, so that the signal increments of the first reflected signal 6a and the second reflected signal 6b received by the first receiver 3a and the second receiver 3b tend to be stable, which is convenient for stable measurement.

[0101]

First measurement state

[0102] In one embodiment, the intraocular pressure measuring device has a first measurement state, that is, the transmitter 4 also includes a first measurement state. In the first measurement state, the transmitter 4 transmits a first test signal so that the first receiver 3a receives the first reflected signal 6a of the first test signal, and the second receiver 3b receives the second reflected signal 6b of the first test signal; in the first measurement state, the controller 11 is used to determine whether the currently measured eye is the left eye or the right eye based on the difference between the first signal strength of the first reflected signal 6a and the second signal strength of the second reflected signal 6b. For example, in some embodiments, the controller 11 is used to compare the difference with a preset threshold value.

[0103] Optionally, in an embodiment of the present application, the first test signal is a first optical signal, and the first test signal is visible light, such as light with a wavelength range of 0.77 to 0.39 microns. In other embodiments, the first test signal is infrared light, such as electromagnetic waves in the infrared band with a wavelength range of 0.76 to 1000 microns.

[0104] Optionally, when the transmitter 4 is in the first measurement state, the specific process of the intraocular pressure measurement device performing left-eye recognition is described. The first receiver 3a and the second receiver 3b are used to detect visible or invisible light reflected from the subject's face. Based on the different characteristics of the received first reflected signal 6a and the second reflected signal 6b, the left or right eye is determined to be the one currently being measured. For example, when the intraocular pressure measurement device is aimed at the left eye, the test signal 5 emitted by the transmitter 4 is adjusted to be directed toward the left side of the subject's face and the face of the subject within a predetermined angle range. Due to the difference in occlusion of the face (including the subject's nose 7a, left cheek 7b, and right cheek 7c), the first reflected signal 6a and the second reflected signal 6b are received by the first receiver 3a and the second receiver 3b, respectively. The difference in the characteristics and intensity of the received first reflected signal 6a and the second reflected signal 6b is then used to determine whether the left or right eye is being measured. Specifically, the controller 11 can compare the difference between the first signal intensity of the first reflected signal 6a and the second signal intensity of the second reflected signal 6b with a preset threshold to determine whether the left or right eye is being measured. Those skilled in the art can set a preset threshold of an appropriate size as needed.

[0105] In another embodiment, the controller 11 is configured to compare the first signal strength of the first reflection signal 6a with the second signal strength of the second reflection signal 6b to determine whether the currently measured eye is the left eye or the right eye.

[0106]

Second measurement state

[0107] In one embodiment, the intraocular pressure measuring device has a second measurement state, that is, the transmitter 4 also includes a second measurement state. In the second measurement state, the transmitter 4 transmits a second test signal with an initial coding value, so that the first receiver 3a receives the first reflected signal 6a of the second test signal, and the second receiver 3b receives the second reflected signal 6b of the second test signal; in the second measurement state, the controller 11 is used to compare the initial coding value with the first coding value of the first reflected signal 6a and the second coding value of the second reflected signal 6b, respectively, to determine whether the eye currently being measured is the left eye or the right eye.

[0108] In the embodiment of the present application, the second test signal may be a second optical signal. The second test signal is a coded signal. For example, the second test signal may carry data via an analog signal or digital coding. Specifically, the second test signal may encode logic "1" and logic "0." It will be readily understood that the second test signal may also carry information via frequency and phase modulation, and the present application is not limited thereto.

[0109] The following describes the specific process of left-right eye recognition in the intraocular pressure measurement device when transmitter 4 is in the second measurement state. First receiver 3a and second receiver 3b receive first and second reflected signals 6a and 6b reflected from the face and convert them into electrical signals or digital data. Controller 11 then extracts coded signals from the received first and second reflected signals 6a and 6b using a signal processing algorithm and a decoder. This extraction may involve filtering, noise reduction, demodulation, and decoding. The extracted coded signals are then analyzed and interpreted based on the coding scheme and a pre-set decoding algorithm to extract the first coded value of first reflected signal 6a and the second coded value of the second transmitted signal. For example, if the second test signal is coded "1," if the transmitted second test signal is effectively blocked, the decoded value of the reflected coded signal is "1." If it is not effectively blocked, the decoded value is not "1." Controller 11 compares the first bit error rate between the first coded value and the initial coded value, and the second bit error rate between the second coded value and the initial coded value, to determine whether the currently measured eye is the left or right eye.

[0110] Specifically, the first and second code values ​​are compared with the initial code value of the second test signal, bit by bit, and their values ​​are compared. Specifically, the first and second code values ​​are each subjected to a bit-by-bit exclusive-OR operation with the initial code value to produce a result sequence. For example, in one embodiment, based on the exclusive-OR operation, if the code value differs from the initial code value, the result is 1; if the code value is the same as the initial code value, the result is 0. The number of bit errors in the result sequence is then counted, and a first bit error rate corresponding to the first reflected signal 6a and a second bit error rate corresponding to the second reflected signal 6b are calculated based on the number of bit errors and the total number of codes. The bit error rate is typically expressed as a percentage or decimal, indicating the degree of difference between the code values ​​of the first reflected signal 6a and the second reflected signal 6b and the initial code value.

[0111] Alternatively, in another embodiment of the present application, when performing left-eye and right-eye recognition, the light beam emitted by the transmitter 4 is reflected by facial features (the subject's nose 7a, the subject's left cheek 7b, and the subject's right cheek 7c) and then received by the first receiver 3a and the second receiver 3b. The signal strength received by the first receiver 3a is v2, as shown by the dotted waveform in FIG5 , and the signal strength received by the second receiver 3b is v1, as shown by the solid waveform in FIG5 . When the difference between v1 and v2 reaches a certain value, or when the signal strength of v1 is greater than the signal strength of v2, as shown in FIG5 , it is considered that the left eye is currently being tested. When the difference between v1 and v2 reaches a certain value, or when the signal strength of the solid line v1 is less than the signal strength of the dotted line v2, as shown in FIG6 , it is considered that the right eye is currently being tested. In actual measurement, in order to improve stability, n (n ≥ 2) measurements can be used to identify the absolute signal strength as the logic "1" and logic "0" of the digital signal. Through digital coding, the bit error rate is used for identification. When the correct recognition rate in a single direction is significantly higher than that on the other side, the other side is the eye currently being measured.

[0112] In some specific embodiments, as shown in FIG1 , the intraocular pressure measuring device is placed directly in front of the determined measuring eye and aligned and centered on the corneal center of the measured eye, maintaining an appropriate distance between the probe 121 and the cornea of ​​the measured eye. When the function button 2 is pressed, the end of the probe 121 will hit the center of the measuring eye and rebound. When the probe 121 rebounds into the accommodating cavity 122, the intraocular pressure measuring device starts the first receiver 3a and the second receiver 3b through the controller 11 to calibrate the ambient light as the signal reference intensity before each test, and then transmits the test signal 5 through the transmitter 4. The first receiver 3a and the second receiver 3b respectively receive the light beam reflected in the preset angle range. Through software settings, the characteristics of the first reflection signal 6a and the second reflection signal 6b received by the first receiver 3a and the second receiver 3b are compared to determine the left and right positions of the measured eye. In this example, the test signal 5 emitted by the transmitter 4 is reflected by the face (the nose 7a, left cheek 7b, and right cheek 7c of the person being measured) and received by the second receiver 3b as a signal v1, as shown by the solid waveforms in Figures 5 and 6 . The test signal 5 received by the first receiver 3a is a signal v2, as shown by the dotted waveforms in Figures 5 and 6 . Due to the obstruction of facial features, there is a difference between the first reflected signal 6a and the second reflected signal 6b received by the first receiver 3a and the second receiver 3b. When the solid signal v1 is greater than the dotted signal v2, it is determined to be the left eye; otherwise, it is determined to be the right eye.

[0113] Part II:

[0114] In some embodiments of the present application, as shown in Figures 7 to 10, the intraocular pressure measurement device includes a main base 1, a controller (not shown), a transmitter 4 and a receiver 3. The main base 1 includes a probe 121. The transmitter 4 and the receiver 3 are both arranged on the main base 1 and on the same side of the probe 121. The number of transmitters 4 is one. The first of the transmitter 4 and the receiver 3 is arranged along the second direction Z with the probe 121. The second of the transmitter 4 and the receiver 3 is arranged on one side of the first along the first direction X. The test signal emitted by the transmitter 4 is set to propagate in a direction away from the receiver 3 within a preset angle range. The first direction X, the second direction Z and the third direction Y can be arranged to intersect. Optionally, the first direction X, the second direction Z and the third direction Y are perpendicular to each other.

[0115] In some embodiments, the receiver 3 and probe 121 are arranged along the second direction Z, the transmitter 4 is arranged on one side of the receiver 3 along the first direction X, the probe 121 is movable along the third direction Y, and the receiver 3 is arranged on a central axis perpendicular to the third direction Y and the first direction X, respectively, and the central axis extends along the second direction Z. The receiver 3 is arranged adjacent to the main body 12. The intraocular pressure measurement device may also include a main body (the structure of the main body is the same as the main body 12 of the first part shown in Figure 3).

[0116] In other embodiments, the transmitter 4 and the probe 121 are arranged along the second direction Z, the receiver 3 is arranged on one side of the transmitter 4 along the first direction X, the probe 121 is movable along the third direction Y, and the transmitter 4 is arranged on a central axis perpendicular to the third direction Y and the first direction X, respectively, and the central axis extends along the second direction Z. The transmitter 4 is arranged adjacent to the main body 12. The intraocular pressure measurement device may also include a main body (the structure of the main body is the same as the main body 12 of the first part shown in Figure 3).

[0117] The following describes the working state of the intraocular pressure measurement device by taking the example that the receiver 3 and the probe 121 are arranged along the second direction Z and the transmitter 4 is arranged on one side of the receiver 3 along the first direction X.

[0118] In the first measurement state, the test signal emitted by transmitter 4 is directed away from receiver 3 within a preset angular range. Controller 11, connected to both transmitter 4 and receiver 3, determines whether the eye being measured is the left or right eye based on the strength of the reflected signal. Probe 121 is the measuring unit of the intraocular pressure measurement device.

[0119] Specifically, due to the particularity of human facial features and the function of the intraocular pressure measurement device itself, when testing the position of the left eye / right eye, the signal emitted by the transmitter 4 will produce a deviation in the reflected signal intensity. The controller 11 determines whether the left eye or the right eye is currently being tested based on the comparison of the reflected signal intensity received by the receiver 3 with a preset threshold. For example, taking Figure 7 as an example, the receiver 3 is located on the central axis along the Z direction, and the transmitter 4 is located to the right of the receiver 3. When testing the left eye, the signal emitted by the transmitter 4 is mainly directed toward the tester's face (nose, left cheek, right cheek), and is basically reflected back to the receiver 3, with a higher reflected signal intensity. When testing the right eye, the signal emitted by the transmitter 4 is mainly directed outside the tester's face, and the reflected signal intensity reflected back to the receiver 3 is lower.

[0120] In other embodiments, when the intraocular pressure measurement device is in the second measurement state, the transmitter 4 is used to transmit a test signal with an initial coding value, and the receiver 3 is used to receive a reflected signal of the test signal, where the reflected signal includes a reflected coding signal; the controller is used to decode the reflected coding signal, and determine whether the currently measured eye is the left eye or the right eye based on the bit error rate between the obtained decoded value and the initial coding value of the test coding signal.

[0121] Taking Figure 7 as an example, a test signal with an initial code value is transmitted outwardly through a transmitter 4. Alternatively, taking the above test signal as coded "1" as an example, if the transmitted test signal is effectively blocked, then the decoded value of the reflected signal is 1; if it is not effectively blocked, then it is not 1. It is easy to understand that the present application can obtain the decoded value corresponding to the reflected coded signal by filtering and demodulating the reflected signal.

[0122] Alternatively, in one possible implementation of the present application, the decoded value can be compared with the encoded value of the test signal, and their values ​​can be compared bit by bit, that is, the decoded value and the encoded value are XORed bit by bit to obtain a result sequence. The number of bit errors in the result sequence is then counted, and the bit error rate is calculated based on the number of bit errors and the total number of codes. The bit error rate is usually expressed as a percentage or decimal, indicating the degree of difference between the decoded value and the encoded value.

[0123] Alternatively, using the aforementioned test signal coded "1" as an example, the bit error rate can be used to identify whether the currently measured eye is the left or right eye through digital coding. When the transmitter transmits 1, the receiver receives the corresponding reflected coded signal, which is then filtered and demodulated to obtain a decoded value corresponding to the reflected coded signal. If there is strong occlusion, transmitting 1 will result in receiving 1, and transmitting 0 will result in receiving 0. If there is no effective occlusion, a bit error rate may occur, allowing left and right eye identification based on the bit error rate.

[0124] In these optional embodiments, by transmitting the test signal, the measurement results are made more intuitive, no complex algorithms are required, the cost of left and right eye identification is saved, and the intraocular pressure measurement device is simplified.

[0125] Those skilled in the art will appreciate that the filters, modulators, function buttons, filters, correction elements, and adjustment states, first measurement states, and second measurement states described in the first section are analogously applicable to the second section. Those skilled in the art will also appreciate that, with respect to the transmitter 4 and receiver 3 shown in FIG7 , in an alternative embodiment, the transmitter 4 and receiver 3 can be swapped, with the transmitter 4 configured to transmit at all angles and the receiver configured to receive only reflected signals within a predetermined angle range, thereby still achieving the objectives of the second section.

[0126] The second aspect of the present application provides a left-right eye recognition method.

[0127] Part III:

[0128] FIG11 is a flow chart of a left-right eye recognition method provided by one embodiment of the present application. The method is applied to the intraocular pressure measurement device of the second part of the first aspect of the present application, which includes a probe 121, a transmitter 4, and a receiver 3, as shown in FIG7. The method specifically includes the following steps:

[0129] S100: With the probe 121 facing the eye under test, the test signal transmitted by the transmitter 4 is adjusted or set to be oriented within a preset angular range. The test signal is either a first test signal or a second test signal. The first test signal does not carry a code, and the second test signal carries a code. For example, the preset angular range is diagonally below the left side or diagonally below the right side of the position of the eye under test, and the eye under test is either the left eye or the right eye. For example, as shown in FIG7 , the transmitter 4 is located to the right of the receiver 3, and the preset angular range is diagonally below the right side of the position of the eye under test. Those skilled in the art will appreciate that, in another embodiment, the transmitter 4 is located to the left of the receiver 3, and the preset angular range is diagonally below the left side of the position of the eye under test.

[0130] As shown in Figures 7 to 9 , the test signal emitted by transmitter 4 of the intraocular pressure measurement device is adjusted or set to be directed toward a preset angle range, and receiver 3 is used to receive ambient light and signals reflected from the emitted test signal. The intraocular pressure measurement device may also include the aforementioned main body 12, the structure of which is shown in Figure 3 . The probe 121 is the measuring portion of the intraocular pressure measurement device, which is used to measure intraocular pressure.

[0131] In an embodiment of the present application, the first test signal is visible light, such as light with a wavelength range of 0.77 to 0.39 microns. In other embodiments, the first test signal is infrared light, such as electromagnetic waves in the infrared band with a wavelength range of 0.76 to 1000 microns.

[0132] In other embodiments of the present application, the second test signal is a coded signal, such as an optical signal carrying data via analog or digital coding. Specifically, the signal may encode logical "1" and logical "0." It will be readily understood that optical signals may also carry information by modulating frequency and phase, and the present application is not limited thereto.

[0133] Alternatively, in an embodiment of the present application, the preset angle range is to adapt to the shape characteristics of the human face so that the test signal has different reflection effects when measuring different eyes. Assuming that the transmitter 4 is arranged on the right side of the receiver 3 as shown in Figure 7, when the intraocular pressure measuring device is measuring the right eye, since the adjusted test signal is directed toward the preset angle range, it is diagonally downward to the right side of the position of the eye being tested (in this case, the right eye), so the test signal will be emitted from the side of the right side of the face, for example, from the ear of the face, irradiating the back of the face. When measuring the left eye with the intraocular pressure measuring device as shown in Figure 7, since the preset angle range is diagonally downward to the right side of the position of the eye being tested (in this case, the left eye), the test signal will be mostly blocked by the face (nose, left cheek, right cheek), thereby producing different reflection effects. Those skilled in the art will understand that the principle is similar when the transmitter 4 is located on the left side of the receiver 3.

[0134] It is easy to understand that the present application does not limit the method of determining the preset angle range. The preset angle range can be adjusted according to the face shape, for example, obtained through model training, or obtained through manual adjustment during measurement, as long as the test signal can have different reflection effects when measuring different eyes.

[0135] Optionally, the probe of the intraocular pressure measuring device is opposite to the eye, that is, the intraocular pressure measuring device is placed directly in front of the eye being tested and aligned and centered on the center of the cornea of ​​the eye being tested. At this time, it means that the alignment operation of the test device is completed and the next measurement can be carried out. At this time, the identification of the left and right eyes begins.

[0136] Specifically, the device is first configured based on the device design and measurement requirements, determining a preset angle range. The test signal type is then selected based on the requirements, for example, selecting either the first or second test signal for measurement. Adjustment is performed based on the preset angle range, allowing the test signal emitted by the transmitter to be oriented within the preset angle range. The selected test signal is then transmitted from the transmitter within the set angle range, aligning the signal toward the specific location.

[0137] S200 , receiving, via the receiver 3 , a reflected signal of the test signal after it is irradiated onto the face and / or onto the environment.

[0138] In the embodiment of the present application, the reflected signal is the reflected signal of the test signal after it is irradiated on the human face or reflected by the environment. It should be noted that due to the setting of the preset angle range, the signal strength of the reflected signal received by the receiver 3 will vary when the test signal is measured in different eyes.

[0139] In an embodiment of the present application, a reflected signal can be received by a receiver of the aforementioned intraocular pressure measurement device. In one possible implementation of the present application, whether the received reflected signal is a reflection signal of the test signal can be determined based on identification information of the test signal itself. Specifically, the identification information can be a coding symbol unique to the test signal, and by reading the coding symbol, it can be determined whether the received reflected signal is a signal reflected from the test signal.

[0140] In another possible implementation of the present application, it is also possible to identify whether the received reflected signal belongs to the signal reflected back by the test signal based on the emission frequency of the test signal. In an embodiment of the present application, while receiving the reflected signal, ambient light (usually a DC signal) may be received. With reference to the description in the first part, a high-pass filter or a low-pass filter can be used for electronic filtering. In the actual measurement environment, there may also be some modulated light that cannot be filtered out by the above-mentioned DC signal filtering method. The modulated light can be filtered by setting an optical filter, for example, a bandpass filter, a blocking filter, an interference filter, a prism filter or a refraction filter to achieve optical signal filtering, with reference to the first part.

[0141] Optionally, in this embodiment of the present application, the receiver parameters, including gain and sensitivity, can be set based on the measurement requirements and device specifications to ensure that the receiver can receive the reflected signal from the face and measure the signal strength of the reflected signal. Please refer to the relevant description in the first part of this application for details.

[0142] S300: Determine whether the currently measured eye is the left eye or the right eye according to the signal strength or code of the reflected signal.

[0143] Optionally, in one possible implementation of the present application, assuming the test signal is a first test signal, the eye currently being measured can be determined to be the left eye or the right eye by comparing the signal strength of the reflected signal. In another possible implementation of the present application, assuming the test signal is a second test signal, the eye currently being measured can be determined to be the left eye or the right eye by reading and analyzing the specific code value carried in the reflected signal.

[0144] Optionally, in an embodiment of the present application, a transmitter is used to emit light toward a preset angle range. The light may be blocked by the face or emitted from the side of the face into the environment. The receiver then receives the intensity of the reflected light and determines whether the eye being tested is the left eye or the right eye by comparing it with the initial value of the light intensity or a preset threshold. In other embodiments, if the test signal contains coded information, the measurement of the eye can be determined through decoding analysis. Based on the characteristics of the code, such as a specific frequency, timing, pattern, or code value, the received reflected signal is compared with the initial code to determine the eye being tested.

[0145] Optionally, in one possible implementation of the present application, a reference standard can be first established to determine the signal strength or code range for the left and right eyes. This reference standard can be implemented by pre-calibration or by using a preset threshold value set based on experience. The signal strength or code of the received reflected signal is then compared with the reference standard. If the signal strength or code falls within the reference range for the left eye, the eye currently being measured can be determined to be the left eye; if the signal strength or code falls within the reference range for the right eye, the eye currently being measured can be determined to be the right eye.

[0146] In one embodiment, the above step 300 may specifically perform the following steps:

[0147] S310: When the test signal is a first test signal, obtain a first signal strength of a reflected signal.

[0148] Optionally, in an embodiment of the present application, a first test signal transmitted by a transmitter is adjusted to be directed toward a preset angle range, and then a signal reflected from the face is received by a receiver. The strength of the reflected signal is measured and analyzed using a built-in function of the receiver or an external device to obtain a first signal strength value. Specifically, the signal strength of the reflected signal can be obtained by directly reading the signal structure of the reflected signal; alternatively, the signal strength of the reflected signal can be detected using a signal strength detector.

[0149] In these optional embodiments, by acquiring the first signal strength, a quantized value of the reflected signal can be obtained for subsequent analysis and judgment.

[0150] S320 , determining whether the eye currently being measured is the left eye or the right eye by comparing the first signal strength with a first preset threshold.

[0151] Optionally, in the embodiment of the present application, a first preset threshold may be set as a reference standard for judgment based on actual needs and characteristics of the measurement system. The measured first signal strength is then compared with the set first preset threshold to determine the eye currently being measured.

[0152] Optionally, in other embodiments of the present application, the intraocular pressure measuring device includes a transmitter 4 that can emit infrared or visible light, and at least one receiver 3, for detecting visible light reflected from the face of the examinee (i.e., reflected signal), and judging the eye 8 currently performing the measurement operation based on the different intensities of the received reflected light 7.

[0153] Specifically, assuming that transmitter 4 is located to the right of receiver 3, with receiver 3 centered, as shown in Figure 8, a schematic diagram of left-eye detection is shown. When the intraocular pressure measurement device is aimed at eye 8, transmitter 4 transmits test signal 5, which is adjusted to face away from receiver 3. Most of the light from test signal 5 strikes the right side of the face and near the nasal bone, where it is obscured by the face, producing diffuse reflection. Most of the reflected signal 6 strikes receiver 3. At this point, the first signal strength of the reflected signal detected by receiver 3 is greater than a first preset threshold, indicating that the left eye is being measured.

[0154] When measuring the right eye using the same intraocular pressure measurement device, Figure 9 shows a schematic diagram of right eye detection. Most of the light from test signal 5 is directed to the area around the right ear and beyond, producing very weak reflections on the face. At this point, receiver 3 can detect a slight signal change, or even no change, indicating that the first signal strength is less than a first preset threshold. This indicates that the current measurement is for the right eye.

[0155] To summarize the above embodiment, assuming that the transmitter 4 is located in the direction of the first side of the receiver 3, when the test signal is the first test signal, the first test signal is not encoded, and by comparing the first signal strength with a first preset threshold, when the first signal strength is greater than the first preset threshold, it is determined that the tested eye is the eye on the first side; when the first signal strength is less than the first preset threshold, it is determined that the tested eye is the eye opposite to the first side.

[0156] It should be noted that the emitter 4 in the above embodiment is located on the left side of the device. Of course, it can also be located on the right side of the device. Based on the position of the emitter 4, it is determined whether the intensity change of the reflected light corresponds to the left eye or the right eye.

[0157] The following describes a left-eye and right-eye recognition method taking into account the initial ambient light.

[0158] In one embodiment, before step 100, the method may further specifically perform the following steps:

[0159] S400 , when the test signal is a first test signal, obtaining the initial ambient light intensity of the initial ambient light of the environment where the face of the person being tested is located.

[0160] Optionally, in an embodiment of the present application, the ambient light may specifically be the ambient light of the current measurement environment, and specifically, the ambient light intensity may be the light intensity of the current initial ambient light detected. For example, in the absence of a face, the intensity data of the initial ambient light of the environment in which the face is located is received by a receiver. The collected test ambient light data is then processed and analyzed. For example, a statistical method (such as mean value, median, etc.) may be used to calculate the intensity of the test ambient light. Finally, the obtained test ambient light intensity is used as the initial ambient light intensity of the initial ambient light.

[0161] In these optional embodiments, the initial ambient light intensity of the environment in which the measured face is located is obtained, providing a reference value of the initial ambient light intensity of the environment in which the face is located, which is used as a benchmark standard for subsequent measurements.

[0162] In one embodiment, the above step 200 may specifically perform the following steps:

[0163] S210, obtaining the test ambient light intensity of the test ambient light in the environment where the face of the person being tested is located, where the test ambient light includes a reflection signal.

[0164] Optionally, in the embodiment of the present application, the test ambient light is all the light in the environment of the human face received by the receiver after the test signal is emitted, i.e., the test ambient light. Therefore, the test ambient light should include the reflected signal of the test signal reflected from the human face. The receiver receives information about the test ambient light to obtain the intensity of the test ambient light.

[0165] In these optional embodiments, the left and right eyes can be accurately identified by analyzing the intensity of the test ambient light and the intensity of the initial ambient light, making the measurement results more accurate and reliable.

[0166] In one embodiment, the above step 300 may specifically perform the following steps:

[0167] S330 , determining whether the eye currently being measured is the left eye or the right eye by comparing the difference between the initial ambient light intensity and the test ambient light intensity with a second preset threshold.

[0168] In a possible implementation of the present application, as shown in Figure 8, since the transmitter 4 is located on the right side of the receiver 3, the test signal is adjusted to be emitted toward the right side of the human face. Therefore, when testing the left eye, most of the light of the test signal is irradiated on the right side of the human face and near the nasal bone, and forms diffuse reflection under the obstruction of the face. At this time, the receiver 3 can receive more reflected signals. Therefore, compared with the initial ambient light, the test ambient light at this time is bound to include more reflected signals, which means that the difference between the initial ambient light intensity and the test ambient light intensity at this time is greater than the second preset threshold value, and it can be judged that the eye currently measured is the left eye.

[0169] Taking Figure 9 as an example, since the test signal is emitted toward the right eye, when testing the right eye, most of the test signal light will illuminate the right ear and other areas of the human body, and the reflection that can be generated on the face is very weak. At this time, the receiver 3 can only receive a small amount of reflected signals reflected from the face, or even no reflected signals reflected from the face. All received signals are reflected signals reflected from the environment. Compared with the reflected signals reflected from the face, the reflected signals reflected from the environment have a longer reflection path. Therefore, the signal strength of the reflected signals reflected from the environment is smaller than that of the reflected signals reflected from the face. Therefore, the difference in signal strength between the test ambient light and the initial ambient light is smaller at this time, which means that the difference in initial ambient light intensity and test ambient light intensity is smaller than the second preset threshold value, and it can be determined that the currently measured eye is the right eye.

[0170] In these optional embodiments, by judging the change in ambient light intensity, the measurement results of different eyes can be distinguished, providing a basis for eye recognition and ensuring that the measurement results correspond to the measured eyes.

[0171] In one embodiment, before step 100, the method may further specifically perform the following steps:

[0172] S500 , collecting a plurality of ambient light parameters of the initial ambient light of the environment where the face of the measured person is located at a plurality of positions, where the ambient light parameters include at least one of light intensity and signal intensity of an interference signal.

[0173] The signal baseline strength is then obtained by analyzing the characteristics of the ambient light. It should be noted that the ambient light may also contain interference signals such as cluttered radio waves that interfere with the test signal emitted by the transmitter. Therefore, before determining the signal baseline strength, these interference signals can be filtered to improve the reliability of the signal baseline strength and further improve the accuracy of left and right eye recognition. The filtering method for interference sources can be referred to the description in step 200 and will not be repeated here in this application.

[0174] Optionally, in embodiments of the present application, sensors or receivers can be placed at multiple locations to cover the entire facial area. Ambient light parameters at each location can then be measured and recorded using a light sensor, photodiode, or other suitable sensor. These parameters may include light intensity, signal strength of interference signals, and the like. The obtained ambient light parameters are then stored or recorded for subsequent use.

[0175] In these optional embodiments, multiple ambient light parameters are collected from the initial ambient light environment of the measured face, providing a comprehensive understanding of the ambient light. By collecting ambient light parameters at multiple locations, information such as light intensity and interference signal strength at different locations can be obtained, thereby fully understanding the lighting conditions of the face environment. By collecting multiple ambient light parameters, variations in ambient light at different locations can be taken into account, thereby improving the accuracy and reliability of the measurement.

[0176] S600: Determine a signal baseline strength based on multiple ambient light parameters.

[0177] Optionally, in an embodiment of the present application, the collected multiple ambient light parameters can be sorted and analyzed. For example, the mean, variance, or other statistical indicators of the light intensity and the interference signal can be calculated to obtain a comprehensive assessment of the ambient lighting conditions and the interference level. Based on the results of the analysis and a preset algorithm or rule, the signal baseline strength is determined. This may involve modeling and calibrating the relationship between the light intensity and the interference signal strength. Specifically, linear fitting, curve fitting, grayscale calibration, and other methods can be used to determine the signal baseline strength. Subsequently, tests can be performed under different environmental conditions, and the measurement results can be compared with the expected results to verify the accuracy and stability of the signal baseline strength.

[0178] Optionally, in these optional embodiments, a signal baseline strength is obtained, which can be used as a reference value for subsequent measurements. This reference serves the purpose of, on the one hand, correcting the reflected signal strength received by the receiver during normal measurement after the transmitter illuminates the face and reflects the face, thereby obtaining a signal increment or decrement; and, on the other hand, adjusting the transmitter's emission intensity in real time based on ambient light characteristics, thereby stabilizing the reflected signal increment or decrement received by the receiver, thereby facilitating stable measurement.

[0179] In these optional embodiments, by analyzing multiple ambient light parameters, the impact of various environmental factors on the measurement, such as light intensity and interference signals, can be comprehensively considered to determine a signal baseline strength appropriate for the current environment. By establishing a signal baseline strength, the measurement signal remains stable under different environmental conditions, reducing the impact of environmental changes on the measurement results and improving measurement consistency and reliability.

[0180] S700: Determine the transmission signal strength of the test signal according to the signal reference strength.

[0181] In one embodiment, based on steps S500, S600, and S700, the above step 100 may specifically perform the following steps:

[0182] S110 , using the signal reference strength as a reference, calculating the appropriate transmission signal strength of the test signal in the current environment, and transmitting the test signal within a preset angle range and transmission signal strength.

[0183] In one possible implementation of the present application, an adjustment model is established based on the signal baseline strength and the characteristics of the test signal using linear fitting, curve fitting, or other appropriate mathematical models. This model describes the relationship between the transmit signal strength and the signal baseline strength. Subsequently, based on the established adjustment model, the transmit signal strength of the appropriate test signal can be calculated using the signal baseline strength as a reference. It should be noted that the transmit signal strength is adjusted based on the current environment.

[0184] For example, when the measurement environment is dark, it is necessary to reduce the emission signal strength to ensure that the measurement can be carried out correctly and to ensure the stability of the measurement; when the measurement environment is bright, it is necessary to increase the emission signal strength to prevent the ambient light from being too strong, resulting in inaccurate measurement, thereby further enhancing the stability of the measurement.

[0185] Optionally, in an embodiment of the present application, to improve the anti-interference capability during detection, the test signal emitted by the transmitter may be pulse width modulated (PWM), and the signal may be filtered and demodulated at the receiving end that receives the reflected signal. PWM modulation and demodulation may be implemented through software, hardware, or a combination of software and hardware. Multiple sets of PWM modulations of different frequencies may be intermittently used throughout the detection process to increase stability.

[0186] In these optional embodiments, by adjusting the transmitted signal intensity based on the signal reference intensity, the test signal can be adjusted to achieve an appropriate intensity under different environmental conditions to ensure reliable measurement results. Preferably, adjusting the transmitted signal intensity based on the signal reference intensity can minimize the difference between the signal and ambient light, improving the quality and stability of signal transmission.

[0187] In one embodiment, based on steps S500, S600, and S700, step 300 may specifically perform the following steps:

[0188] S360 , using a preset signal reference standard as a reference, and using a signal reference strength, correcting the received reflected signal to obtain a corrected reflected signal of the reflected signal, wherein the preset signal reference standard is the signal strength of the reflected signal under preset conditions.

[0189] Optionally, in an embodiment of the present application, the signal strength of the reflected signal can first be measured and recorded under preset conditions as a preset signal reference standard. A receiver is then used to receive the signal reflected from the face of the person being measured. A correction value is calculated by comparing the signal strength of the received reflected signal with the signal reference strength. The correction value is then added to or subtracted from the received reflected signal to obtain a corrected reflected signal. The purpose of this correction is to compensate for the effects of environmental factors on the reflected signal, thereby improving the accuracy and stability of the measurement results.

[0190] S370: Determine whether the eye currently being measured is the left eye or the right eye according to the corrected reflection signal.

[0191] Optionally, in a possible implementation of the present application, when the transmitter illuminates the face and after reflection from the face, the reflected signal strength received by the receiver during normal measurement can be corrected to obtain a signal increment or signal decrement, so as to make the obtained measurement result more accurate and ensure the stability of the measurement.

[0192] In these optional embodiments, the received reflected signal is corrected to account for environmental factors affecting signal strength. This includes interference from ambient light, variations in surface reflectivity, and other factors that can cause signal strength disturbances. Furthermore, by comparing the signal with a preset signal reference, the effects of systematic errors and environmental variations on signal strength can be eliminated, resulting in more stable and reliable measurement results.

[0193] The following is a case where the test signal in the third part of this application is the second test signal, and the second test signal is coded.

[0194] In one embodiment, the test signal is a second test signal, and the above step 100 may specifically perform the following steps:

[0195] S120, sending a test coded signal and adjusting it to a direction within a preset angle range, where the test signal includes a test coded signal.

[0196] Optionally, in a possible implementation of the present application, in actual measurement, in order to improve stability, n (n ≥ 2) measurements can be used, and the second test signal can be set to the logic "1" and logic "0" of the digital signal. The test signal is encoded by digital coding. For example, the test coding signal can be coded "1". It should be noted that the specific value of the code can be set according to user needs, and this application is only explained as an example.

[0197] In one embodiment, the test signal is a second test signal, and the above step 200 may specifically perform the following steps:

[0198] S210 , receiving a reflected signal reflected from a second test signal, where the reflected signal includes a reflected coded signal.

[0199] Optionally, in an embodiment of the present application, a receiver is used to record and detect the light signal reflected from the face and convert it into an electrical or digital signal. A coded signal can then be extracted from the received signal using a signal processing algorithm and a decoder. It should be noted that extracting the coded signal may involve steps such as filtering, noise reduction, demodulation, and decoding. The extracted coded signal is then analyzed and interpreted according to the coding scheme and a pre-set decoding algorithm to extract the coded value of the reflected coded signal.

[0200] In one embodiment, the above step 300 may specifically perform the following steps:

[0201] S301, obtaining a decoded value of a reflected coded signal;

[0202] S302 , comparing the decoded value and the coding value of the test coding signal / the second test signal to obtain a bit error rate of the reflected coding signal, where the bit error rate indicates the degree of difference between the decoded value and the coding value.

[0203] Optionally, taking the above-mentioned test coded signal as coded "1" as an example for explanation, if the transmitted test coded signal is effectively blocked, then the decoded value of the reflected reflected coded signal is 1. If it is not effectively blocked, then it is not 1. It is easy to understand that the present application can obtain the decoded value corresponding to the reflected coded signal by filtering and demodulating the reflected coded signal.

[0204] Optionally, in an embodiment of the present application, a decoding operation is required to obtain a decoded value of the reflected coded signal. The specific decoding method depends on the encoding scheme used. For example, a decoding method such as a decoding algorithm, a lookup in a coding table, or a related decoder can be used to convert the reflected coded signal into a corresponding decoded value.

[0205] Alternatively, in one possible implementation of the present application, the decoded value can be compared with the encoded value of the test coded signal, and their values ​​can be compared bit by bit. That is, the decoded value and the encoded value are XORed bit by bit to obtain a result sequence. The number of bit errors in the result sequence is then counted. The bit error rate is calculated based on the number of bit errors and the total number of codes. The bit error rate is usually expressed as a percentage or decimal, indicating the degree of difference between the decoded value and the encoded value.

[0206] S303 , determining whether the currently measured eye is the left eye or the right eye by comparing the bit error rate with a third preset threshold.

[0207] For example, in a possible implementation of the present application, the above-mentioned test coding signal is coded "1" as an example for explanation, and the bit error rate is used through digital coding to identify whether the currently measured eye is the left eye or the right eye.

[0208] In the embodiment of the present application, the transmitter transmits 1 in a coded manner, and the corresponding reflected coded signal is obtained at the receiving end, and the corresponding reflected coded signal is filtered and demodulated to obtain the decoding value of the corresponding reflected coded signal. If there is a relatively strong occlusion, 1 can be received when 1 is transmitted, and 0 can be received when 0 is transmitted. However, if the occlusion is not effective, a bit error rate may occur, and the left and right eyes can be identified by the bit error rate.

[0209] For example, in an embodiment of the present application, as shown in Figure 8, if the bit error rate is less than the third preset threshold, it means that the second decoded value of the reflected coded signal is the coding value of the test coded signal, that is, the test coded signal is effectively blocked, indicating that the test coded signal is blocked by the human face. Since the test coded signal is adjusted to face the preset angle range, that is, the right side of the receiver 3, most of it is reflected toward the human face and received by the receiver 3. Therefore, it can be determined that the eye currently being measured is the left eye.

[0210] For another example, in an embodiment of the present application, as shown in FIG9 , if the bit error rate is greater than the third preset threshold, it means that the decoded value of the reflected coded signal is not the coded value of the test coded signal, that is, the test coded signal is not effectively blocked, indicating that the first coded signal is emitted through the side of the human face. Since the test coded signal is adjusted to face the preset angle range, that is, the right side of the receiver 3, it can be determined that the eye currently being measured is the right eye.

[0211] To summarize the above embodiments, assuming that transmitter 4 is located toward the first side of receiver 3, when the test signal is the second test signal, the second test signal is coded. By comparing the bit error rate with a third preset threshold, if the bit error rate exceeds the third preset threshold, the eye being tested is determined to be the eye on the first side; if the bit error rate is less than the third preset threshold, the eye being tested is determined to be the eye on the opposite side from the first side. In these optional embodiments, by providing a coded signal, the measurement results are more intuitive, eliminating the need for complex algorithms and reducing the cost of left-right eye recognition.

[0212] Optionally, in an embodiment of the present application, a preset angle for the transmitter to transmit a test signal can be obtained based on a head shape training model, wherein the head shape training model can be obtained based on a training set, and the training set includes multiple human head shape sample images. By continuously training with the training set, the transmission angle of the test signal can be obtained.

[0213] Optionally, as shown in Figures 8 and 9, in a possible implementation of the present application, the intraocular pressure measuring device is placed directly in front of the determined measuring eye 8 / 9 and aligned and centered on the corneal center of the measured eye 8a / 8b, and the distance between the probe 121 and the cornea of ​​the measured eye 8a / 8b is maintained at 4-10mm. When the measurement key 2 is pressed, the probe 121 will hit the center of the measuring eye 8a / 8b and bounce back, and then the probe 121 bounces back into the device, and then the receiver 3 is started to calibrate the ambient light as a benchmark parameter calibration before each test, and then the transmitter 4 sequentially transmits a 5-30ms time test signal 5, and the receiver 3 receives the amount of light of each reflected signal 6, and the software sets the size of the reflected light of the test signal 5 emitted by the transmitter 4 to determine the left and right positions of the measured eye.

[0214] Part 4:

[0215] Some embodiments of the fourth part of the present application further provide a left-right eye recognition method, which is applied to the intraocular pressure measurement device of the first part. As shown in Figures 1 to 4, the intraocular pressure measurement device includes a controller 11, a transmitter 4, a first receiver 3a and a second receiver 3b, and a probe 121. In the intraocular pressure measurement device of the first part, the transmitter 4 is arranged between the first receiver 3a and the second receiver 3b. The method includes:

[0216] S10, when the probe 121 is opposite to the eye to be tested, controlling the transmitter 4 to transmit a test signal and adjusting the test signal to be directed toward a preset angle range, the test signal including a first test signal and / or a second test signal, the first test signal having no coding and the second test signal having an initial coding value;

[0217] S20, controlling the first receiver 3a to receive the first reflected signal of the test signal, and controlling the second receiver 3b to receive the second reflected signal of the test signal;

[0218] S30, when the transmitter transmits the first test signal, determining whether the currently measured eye is the left eye or the right eye by comparing a first signal strength of the first reflected signal with a second signal strength of the second reflected signal, or by comparing a difference between the first signal strength of the first reflected signal and the second signal strength of the second reflected signal with a preset threshold; or

[0219] When the transmitter transmits the second test signal, the initial code value is compared with the first code value of the first reflection signal and the second code value of the second reflection signal to determine whether the currently measured eye is the left eye or the right eye.

[0220] Through the first receiver 3a and the second receiver 3b, the first reflected signal and the second reflected signal reflected back by the test signal can be received at different positions respectively, so that the controller 11 can determine whether the eye currently being measured is the left eye or the right eye based on the difference between the first reflected signal and the second reflected signal, thereby enabling the intraocular pressure measurement device to automatically identify the left and right eyes, thereby improving the reliability and accuracy of the intraocular pressure measurement device in automatically identifying the left and right eyes.

[0221] In some embodiments, the detected eye is determined to be the left eye or the right eye based on a difference between the signal strength of the first reflected signal and the signal strength of the second reflected signal and by comparing the difference with a preset threshold.

[0222] In other embodiments, it is determined whether the eye being measured is the left eye or the right eye based on a comparison of the signal strength of the first reflected signal and the signal strength of the second reflected signal.

[0223] In some embodiments, the first code value of the first reflected signal and the second code value of the second reflected signal are compared with the initial code value to determine whether the detected eye is the left eye or the right eye.

[0224] In some other embodiments, the left eye and the right eye are determined based on the bit error rate of the first reflected signal and the second code value of the second reflected signal, which are compared with the bit error rate threshold of the code.

[0225] The third aspect of this application:

[0226] The left-eye and right-eye recognition methods of the third and fourth parts of the second aspect of the present application are implemented through a hardware structure. Figure 10 shows a schematic diagram of the hardware structure of the intraocular pressure measurement device provided in an embodiment of the present application. This hardware structure is applicable to the intraocular pressure measurement devices of the first and second parts, and includes a processor 501 and a memory 502 storing program instructions.

[0227] When the processor 501 executes the program, the steps in any of the above method embodiments are implemented.

[0228] For example, the program may be divided into one or more modules / units, one or more modules / units being stored in the memory 502 and executed by the processor 501 to complete the present application. One or more modules / units may be a series of program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the program in the device.

[0229] Specifically, the processor 501 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application. The memory 502 may include a large-capacity memory for data or instructions. By way of example and not limitation, the memory 502 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 502 may include a removable or non-removable (or fixed) medium. Where appropriate, the memory 502 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 502 is a non-volatile solid-state memory. The memory may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk storage medium device, an optical storage medium device, a flash memory device, an electrical, optical, or other physical / tangible memory storage device. Therefore, typically, the memory includes one or more tangible (non-transitory) readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to one aspect of the present disclosure. The processor 501 implements any one of the methods in the above-mentioned embodiments by reading and executing program instructions stored in the memory 502. In one example, the electronic device may further include a communication interface 503 and a bus 510. Among them, the processor 501, the memory 502, and the communication interface 503 are connected via the bus 510 and complete communication with each other. The communication interface 503 is mainly used to implement communication between the modules, devices, units and / or devices in the embodiments of the present application. The bus 510 includes hardware, software, or both, coupling the components of the online data traffic billing device to each other. For example, and not limitation, bus can comprise accelerated graphics port (AGP) or other graphics bus, enhanced industry standard architecture (EISA) bus, front side bus (FSB), hypertransport (HT) interconnection, industry standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnect (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. Where appropriate, bus 510 can comprise one or more buses. Although the present application embodiment describes and shows specific bus, the application considers any suitable bus or interconnection.

[0230] The embodiments of the present application may be implemented by providing a storage medium having program instructions stored thereon; when the program instructions are executed by a processor, any one of the methods in the above embodiments is implemented.

[0231] The present application also provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute programs or instructions to implement the various processes of the above-described method embodiments, and to achieve the same technical effects. To avoid repetition, these are not described here. It should be understood that the chip mentioned in the present application can also be referred to as a system-on-chip, a system-on-chip, a chip system, or a system-on-chip chip.

[0232] An embodiment of the present application provides a computer program product, which is stored in a storage medium. The program product is executed by at least one processor to implement the various processes of the above-mentioned method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0233] It should be understood that the present application is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and illustrated as examples. However, the method process of the present application is not limited to the specific steps described and illustrated. Those skilled in the art can make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present application.

[0234] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0235] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. An intraocular pressure measuring device, in, The intraocular pressure measuring device comprises: A main body base, the main body base including a probe; A transmitter, the transmitter is arranged on the main body base, the transmitter is used to transmit a test signal, and the test signal is adjusted to propagate toward a preset angle range; at least one receiver, the receiver being disposed on the main body base and being used to receive a reflected signal of the test signal; A controller, wherein the controller is connected to the transmitter and the receiver respectively, and the transmitter and the receiver are located on the same side of the probe; the controller is used to determine whether the eye currently measured is the left eye or the right eye according to the signal strength of the reflected signal; or, in the case where the test signal carries a code, the controller is used to determine whether the eye currently measured is the left eye or the right eye according to the code carried by the reflected signal.

2. The intraocular pressure measuring device according to claim 1, in, The at least one receiver includes a first receiver and a second receiver, the first receiver and the second receiver are arranged on the main body base, the first receiver and the second receiver are arranged at two ends of the transmitter along a first direction, the first receiver is used to receive a first reflected signal of the test signal, and the second receiver is used to receive a second reflected signal of the test signal; The controller is used to determine whether the eye currently being measured is the left eye or the right eye according to the signal strengths of the first reflection signal and the second reflection signal.

3. The intraocular pressure measuring device according to claim 1, in, The number of the transmitter is 1, the first of the transmitter and the receiver is arranged along the second direction with the probe, the second of the transmitter and the receiver is arranged on one side of the first along the first direction, and the test signal emitted by the transmitter is arranged to propagate in a preset angle range toward a direction away from the receiver; The controller is used to determine whether the currently measured eye is the left eye or the right eye according to the signal strength of the reflected signal, and the first direction intersects with the second direction.

4. The intraocular pressure measuring device according to claim 2 or 3, in, One of the receiver and the transmitter is disposed along the second direction with the probe, the probe is movably disposed along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

5. The intraocular pressure measuring device according to claim 4, in, The main body base comprises a main body portion, the main body portion comprises a probe sleeve extending along the third direction, and the probe sleeve has a receiving cavity; The probe is movably disposed in the accommodating cavity, a portion of the probe extends out of the probe sleeve along the third direction, and the probe is used to measure intraocular pressure of the eye.

6. The intraocular pressure measuring device according to any one of claims 1 to 3 and 5, in, The intraocular pressure measuring device has an adjustment state; when the intraocular pressure measuring device is in the adjustment state, the receiver is used to collect multiple ambient lights of the initial ambient light of the environment where the face of the measured person is located at multiple positions; The controller is used to determine a signal reference strength according to the ambient light parameters of the multiple ambient lights, determine a transmission signal strength of the test signal according to the signal reference strength, and control the transmitter to transmit the test signal with the transmission signal strength.

7. The intraocular pressure measuring device according to claim 6, in, The intraocular pressure measuring device also has one or more of the following features: The intraocular pressure measuring device comprises a correction component, which is arranged on the receiver and is used to correct the signal strength of the reflected signal; The intraocular pressure measuring device comprises a filter, which is arranged on the transmitter and is used to perform pulse width modulation on the test signal transmitted by the transmitter; The intraocular pressure measuring device further comprises a modulator, which is arranged on the receiver and is used for filtering the modulated light in the reflected signal.

8. The intraocular pressure measuring device according to claim 2, in, The intraocular pressure measurement device has a first measurement state. When the intraocular pressure measurement device is in the first measurement state, the transmitter transmits a first test signal, the first receiver is used to receive a first reflection signal of the first test signal, and the second receiver is used to receive a second reflection signal of the first test signal; The controller is used to determine whether the currently measured eye is the left eye or the right eye according to the difference between the first signal strength of the first reflected signal and the second signal strength of the second reflected signal; or, the controller is used to compare the first signal strength of the first reflected signal The signal strength and the second signal strength of the second reflected signal are used to determine whether the currently measured eye is the left eye or the right eye.

9. The intraocular pressure measuring device according to claim 2, in, The intraocular pressure measurement device has a second measurement state. When the intraocular pressure measurement device is in the second measurement state, the transmitter is used to transmit a second test signal with an initial coding value, the first receiver is used to receive a first reflection signal of the second test signal, and the second receiver is used to receive a second reflection signal of the second test signal; In the second measurement state, the controller is used to compare the initial coding value with the first coding value of the first reflection signal and the second coding value of the second reflection signal respectively to determine whether the currently measured eye is the left eye or the right eye.

10. The intraocular pressure measuring device according to claim 3, in, When the intraocular pressure measuring device is in the first measuring state, the controller determines whether the left eye or the right eye is currently being tested based on a comparison between the strength of the reflected signal received by the receiver and a preset threshold.

11. The intraocular pressure measuring device according to claim 3, in, When the intraocular pressure measuring device is in the second measuring state, the transmitter is used to transmit a test signal having an initial coding value, and the receiver is used to receive a reflection signal of the test signal, wherein the reflection signal includes a reflection coding signal; The controller is used to decode the reflected coded signal, and determine whether the currently measured eye is the left eye or the right eye according to the bit error rate between the obtained decoded value and the initial coded value of the test signal.

12. A left-right eye recognition method, in, The method is applied to an intraocular pressure measuring device according to any one of claims 1, 2, and 4-9, wherein the intraocular pressure measuring device comprises a probe, a transmitter, a first receiver, and a second receiver, and the method comprises: When the probe is opposite to the eye to be tested, the test signal emitted by the transmitter is controlled to be adjusted to propagate toward a preset angle range, the test signal being a first test signal or a second test signal, the first test signal not carrying a code, and the second test signal having an initial code value; Controlling the first receiver to receive the first reflected signal of the test signal, and controlling the second receiver to receive the second reflected signal of the test signal; In the case where the transmitter transmits the first test signal, comparing a first signal strength of the first reflected signal with a second signal strength of the second reflected signal, or determining whether the currently measured eye is a left eye or a right eye according to a difference between the first signal strength of the first reflected signal and the second signal strength of the second reflected signal and a preset threshold; or When the transmitter transmits the second test signal, the initial coding value is compared with the first coding value of the first reflected signal and the second coding value of the second reflected signal to determine whether the eye currently being measured is the left eye or the right eye.

13. A left-right eye recognition method, in, The method is applied to the intraocular pressure measuring device according to any one of claims 1, 3-7, 10-11, wherein the intraocular pressure measuring device comprises a controller, a transmitter and a receiver, and the method comprises: When the probe of the intraocular pressure measuring device is opposite to the eye, the test signal emitted by the transmitter is controlled to be adjusted or set to be oriented toward a preset angle range, the test signal being a first test signal or a second test signal, the first test signal not carrying a code, and the second test signal having an initial code value; Receiving, by the receiver, a reflected signal of the test signal after the test signal is irradiated onto the face and / or the environment; It is determined whether the eye currently being measured is the left eye or the right eye according to the signal strength or the encoding of the reflected signal.

14. The method according to claim 13, in, The step of determining whether the currently measured eye is a left eye or a right eye according to the signal strength or encoding of the reflected signal comprises: When the test signal is a first test signal, obtaining a first signal strength of the reflected signal; The first signal strength is compared with a first preset threshold to determine whether the eye currently being measured is the left eye or the right eye.

15. The method according to claim 14, in, When the probe is opposite to the eye and the test signal is a first test signal, the method further includes: Before the transmitter transmits the test signal, the initial ambient light intensity of the initial ambient light of the environment where the face of the person being tested is located is obtained; Controlling the transmitter to transmit a test signal, receiving, through the receiver, a reflected signal reflected back from the test signal after being irradiated onto the face, and obtaining the test environment light intensity of the test environment light in the environment where the face of the tested person is located, wherein the test environment light includes the reflected signal; The difference between the test ambient light intensity and the initial ambient light intensity is calculated and compared with the second preset threshold to determine whether the eye currently being measured is the left eye or the right eye.

16. The method according to claim 15, in, The method further comprises: Before the transmitter transmits the test signal, a plurality of ambient light parameters of the initial ambient light of the environment where the face of the person being tested is located at a plurality of positions are collected, wherein the ambient light parameters include at least one of the light intensity and the signal intensity of the interference signal; determining a signal baseline strength based on the plurality of ambient light parameters; Determining, according to the signal reference strength, a transmission signal strength that matches the test signal in the current environment; Transmitting the test signal at the preset angle and the transmission signal strength; Taking a preset signal reference standard as a reference, the received reflected signal is corrected by the signal reference strength to obtain a corrected reflected signal of the reflected signal, wherein the preset signal reference standard is the signal strength of the reflected signal under preset conditions; According to the corrected reflection signal, it is determined whether the eye currently being measured is the left eye or the right eye.

17. The method according to claim 13, in, The test signal is a second test signal, the second test signal is encoded and propagates toward a preset angle range, and the method includes: receiving a reflected signal reflected from the second test signal, wherein the reflected signal includes a reflected coded signal; Obtaining a decoded value of the reflected coded signal; Comparing the similarities and differences between the decoded value and the coded value of the second test signal to obtain a bit error rate of the reflected coded signal, wherein the bit error rate is used to indicate the degree of difference between the decoded value and the coded value; By comparing the bit error rate with a third preset threshold, it is determined whether the eye currently being measured is the left eye or the right eye.

18. A computer-readable storage medium, in, The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the left-right eye recognition method according to any one of claims 12 to 17 is implemented.

19. A left-right eye recognition method, in, The method is applied to an intraocular pressure measuring device, the intraocular pressure measuring device includes a measuring part, a transmitter and a receiver, and the method includes: When the measuring part is opposite to the eye, the transmitter transmits a test signal at a preset angle, wherein the test signal includes a first light signal or a second light signal, wherein the first light signal does not carry a code, and the second light signal carries a code, and the preset angle is an angle toward the position of the first eye, wherein the first eye is one of the left eye and the right eye, and the second eye is the other of the left eye and the right eye; Receiving, by the receiver, a reflected signal of the test signal after the test signal is irradiated onto the face and / or the environment; It is determined whether the eye currently being measured is the left eye or the right eye according to the signal strength or the encoding of the reflected signal.

20. An intraocular pressure measuring device, in, The intraocular pressure measuring device comprises: Main base; A transmitter, the transmitter is arranged on the main body base, the transmitter is used to transmit a test signal, and the transmission angle of the test signal transmitted by the transmitter is adjustable; a first receiver; a second receiver, wherein the first receiver and the second receiver are arranged on the main body base, and the first receiver and the second receiver are arranged at two ends of the transmitter along a first direction, the first receiver is used to receive a first reflected signal of the test signal, and the second receiver is used to receive a second reflected signal of the test signal; A controller, the controller is connected to the transmitter, the first receiver and the second receiver respectively, wherein: The controller is used to determine whether the eye currently being measured is the left eye or the right eye according to the signal strengths of the first reflection signal and the second reflection signal.

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