CN110967685B - Method and system for evaluating interference signal, electronic device and storage medium - Google Patents
Method and system for evaluating interference signal, electronic device and storage medium Download PDFInfo
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- CN110967685B CN110967685B CN201911253046.3A CN201911253046A CN110967685B CN 110967685 B CN110967685 B CN 110967685B CN 201911253046 A CN201911253046 A CN 201911253046A CN 110967685 B CN110967685 B CN 110967685B
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Abstract
Disclosed are a method of evaluating an interference signal, a system of evaluating an interference signal, an electronic device, and a computer-readable storage medium. The method for evaluating the interference signal comprises the following steps: obtaining a standard critical energy value; substituting the evaluation parameters of the depth detection assembly to be evaluated into a preset evaluation model to obtain an actual output energy value; and evaluating whether the interference signal of the depth detection component to be evaluated influences the effective signal or not according to the actual output energy value and the standard critical energy value. According to the method for evaluating the interference signal, the system for evaluating the interference signal, the electronic device and the computer readable storage medium, whether the interference signal of the depth detection component to be evaluated in a certain design state influences an effective signal can be judged without manufacturing and measuring a corresponding real object of the depth detection component to be evaluated in the certain design state, so that the research and development period can be shortened, and the research and development cost can be reduced.
Description
Technical Field
The present disclosure relates to the field of depth detection technologies, and in particular, to a method for evaluating an interference signal, a system for evaluating an interference signal, an electronic device, and a computer-readable storage medium.
Background
A depth detection component, such as a Time of Flight (TOF) component, calculates the distance from the Time of Flight of the light. The basic principle of the time-of-flight module is to transmit modulated light pulses by an infrared transmitter, receive the reflected light pulses by an infrared receiver after the light pulses encounter an object, and calculate the distance between the infrared receiver and the object according to the round trip time of the light pulses.
Based on the waterproof dustproof requirement of the whole mobile phone and the aesthetic property of the appearance. The outside of the infrared receiver and the infrared transmitter is usually encapsulated by a transparent glass plate. Because the transmittance of the transparent glass plate cannot realize 100% transmission, most of laser emitted by the infrared emitter is transmitted through the transparent cover plate and then projected onto a measured target; but still a portion of the laser light is reflected multiple times within the glass cover plate and is ultimately incident directly on the infrared receiver. The signal that infrared receiver received this moment has two parts, and partly is the useful signal that reflects back through the target object, and partly is the interference signal who comes through cover plate glass multiple reflection, when interference signal intensity to a certain extent, then can influence useful signal, and then influences TOF test accuracy and effect.
If the energy which is crosstalked to the infrared receiver through the cover plate glass in a certain design state needs to be accurately measured, the real object needs to be made according to the specific value of each parameter in the design state to carry out crosstalk energy detection; if one or more parameter values are changed in the design state, a real object needs to be made again and then crosstalk energy detection is carried out; and finally, judging whether the interference signal in the design state meets the working requirement of TOF according to the crosstalk energy detection result. The production of the object requires a long cycle time and is expensive.
Disclosure of Invention
The embodiment of the application provides a method for evaluating interference signals, a system for evaluating interference signals, an electronic device and a computer readable storage medium.
The method for evaluating the interference signal comprises the following steps: obtaining a standard critical energy value; substituting the evaluation parameters of the depth detection assembly to be evaluated into a preset evaluation model to obtain an actual output energy value; and evaluating whether the interference signal of the depth detection component to be evaluated influences the effective signal or not according to the actual output energy value and the standard critical energy value.
The system for evaluating the interference signal comprises a depth detection component to be evaluated and a processor, wherein the processor is used for: obtaining a standard critical energy value; substituting the evaluation parameters of the depth detection assembly to be evaluated into a preset evaluation model to obtain an actual output energy value; and evaluating whether the interference signal of the depth detection component to be evaluated influences the effective signal or not according to the actual output energy value and the standard critical energy value.
The electronic device of the embodiment of the application comprises a depth detection component to be evaluated and a processor. The processor is configured to perform the following method of evaluating an interfering signal: obtaining a standard critical energy value; substituting the evaluation parameters of the depth detection assembly to be evaluated into a preset evaluation model to obtain an actual output energy value; and evaluating whether the interference signal of the depth detection component to be evaluated influences the effective signal or not according to the actual output energy value and the standard critical energy value.
The computer-readable storage medium of the embodiments of the present application, on which a computer program is stored. The computer program, when being executed by a processor, implements the following method of evaluating an interfering signal: obtaining a standard critical energy value; substituting the evaluation parameters of the depth detection assembly to be evaluated into a preset evaluation model to obtain an actual output energy value; and evaluating whether the interference signal of the depth detection component to be evaluated influences the effective signal or not according to the actual output energy value and the standard critical energy value.
The method for evaluating an interference signal, the system for evaluating an interference signal, the electronic device and the computer-readable storage medium according to the embodiments of the present application obtain an actual output energy value by substituting an evaluation parameter of a depth detection module to be evaluated into a preset evaluation model, evaluate the depth detection module to be evaluated according to the actual output energy value and an obtained standard critical energy value, and output a conclusion as to whether the interference signal of the depth detection module to be evaluated affects an effective signal, so that whether the interference signal of the depth detection module to be evaluated in a design state affects the effective signal can be determined without manufacturing and measuring a corresponding object for the depth detection module to be evaluated in the design state, a development cycle can be shortened, development cost can be reduced, and one or more evaluation parameters in the design state of the depth detection module can be changed, and whether the corresponding interference signal influences the corresponding effective signal is evaluated, so that the method is very convenient and fast, and the flexibility of the research and development process can be improved.
Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow chart diagram of a method of evaluating an interfering signal according to some embodiments of the present application;
FIG. 2 is a schematic diagram of a system for evaluating an interfering signal according to some embodiments of the present application;
FIG. 3 is a schematic structural view of a depth detection assembly under evaluation or a depth detection assembly in a critical energy state according to certain embodiments of the present disclosure;
fig. 4 is a schematic diagram of an actual output energy value and distribution thereof obtained by substituting a depth detection module to be evaluated or a depth detection module in a critical energy state into a preset evaluation model according to some embodiments of the present disclosure;
FIG. 5 is a schematic flow chart diagram of a method of evaluating an interfering signal according to some embodiments of the present application;
FIG. 6 is a schematic diagram of a system for evaluating an interfering signal according to certain embodiments of the present application;
FIG. 7 is a schematic flow chart diagram of a method of evaluating an interfering signal according to some embodiments of the present application;
FIG. 8 is a schematic flow chart diagram of a method of evaluating an interfering signal according to some embodiments of the present application;
FIG. 9 is a schematic flow chart diagram of a method of evaluating an interfering signal according to some embodiments of the present application;
FIG. 10 is a schematic structural diagram of an electronic device according to some embodiments of the present application;
fig. 11 is a schematic diagram illustrating a connection state of a computer-readable storage medium and an electronic device according to some embodiments of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
Referring to fig. 1 and 2, a method for evaluating an interference signal is provided in an embodiment of the present disclosure. The method for evaluating the interference signal comprises the following steps:
01: obtaining a standard critical energy value;
02: substituting the evaluation parameters of the depth detection assembly 100 to be evaluated into a preset evaluation model to obtain an actual output energy value; and
03: and evaluating whether the interference signal of the depth detection component 100 to be evaluated influences the effective signal or not according to the actual output energy value and the standard critical energy value.
Referring to fig. 2, a system 1000 for evaluating an interference signal is also provided in the present embodiment. The system 1000 for evaluating an interference signal comprises a depth detection component 100 to be evaluated and a processor 200. The method for evaluating an interference signal according to the embodiment of the present application can be implemented by the system 1000 for evaluating an interference signal according to the embodiment of the present application. For example, the processor 200 may be used to execute the methods in 01, 02, and 03.
That is, processor 200 may be configured to: obtaining a standard critical energy value; substituting the evaluation parameters of the depth detection assembly 100 to be evaluated into a preset evaluation model to obtain an actual output energy value; and evaluating whether the interference signal of the depth detection assembly 100 to be evaluated influences the effective signal according to the actual output energy value and the standard critical energy value.
The method for evaluating an interference signal and the system 1000 for evaluating an interference signal according to the embodiments of the present application obtain an actual output energy value by substituting an evaluation parameter of a depth detection assembly 100 to be evaluated into a preset evaluation model, evaluate the depth detection assembly 100 to be evaluated according to the actual output energy value and an obtained standard critical energy value, and output a conclusion whether an interference signal of the depth detection assembly 100 to be evaluated affects an effective signal, so that whether the interference signal of the depth detection assembly 100 to be evaluated in a design state affects the effective signal can be determined without manufacturing and measuring a corresponding real object to the depth detection assembly 100 to be evaluated in a certain design state, a research and development period can be shortened, research and development costs can be reduced, one or several evaluation parameters in the design state of the depth detection assembly can be changed, and it becomes very convenient and fast to evaluate whether the corresponding interference signal affects the corresponding effective signal, the flexibility of the research and development process can be improved.
Specifically, the manner of obtaining the standard critical energy value may be: firstly, the processor 200 detects to obtain a standard critical energy value; secondly, other components are detected to obtain a standard critical energy value, and the processor 200 reads the standard critical energy value.
Referring to fig. 3, the depth detection assembly 100 to be evaluated may include a light emitter 10, a light receiver 20, and a cover plate 30. The cover plate 30 includes opposing inner and outer surfaces 31, 32, with the optical transmitter 10 and the optical receiver 20 both disposed on the side of the inner surface 31. When the depth detection assembly 100 is in operation, the laser emitted by the light emitter 10 sequentially passes through the inner surface 31 and the outer surface 32 to reach the object to be measured, and the laser reflected by the object to be measured sequentially passes through the outer surface 32 and the inner surface 31 and is received by the light receiver 20. The cover plate 30 may be made of a material with high transmittance, such as glass. The evaluation parameters of the depth detection assembly 100 to be evaluated include any one or more of: the distance x between the edges of the optical transmitter 10 and the optical receiver 20, the angle of view α (not shown) of the optical transmitter 10, the angle of view β (not shown) of the optical receiver 20, the thickness y of the cover 30, the refractive index e of the cover 30, the transmittance f1 of the inner surface 31, the transmittance f2 of the outer surface 32, the end face distance z1 between the inner surface 31 and the optical transmitter 10, and the end face distance z2 between the inner surface 31 and the optical receiver 20. For example, the evaluation parameters of the depth detection assembly 100 to be evaluated include the edge interval x of the light emitter 10 and the light receiver 20; alternatively, the evaluation parameter of the depth detection assembly 100 to be evaluated includes the field angle α of the light emitter 10; alternatively, the evaluation parameters of the depth detection assembly 100 to be evaluated include the edge distance x between the phototransmitter 10 and the photoreceiver 20, the field angle α of the phototransmitter 10, the field angle β of the photoreceiver 20, the thickness y of the cover 30, the refractive index e of the cover 30, the transmittance f1 of the inner surface 31, the transmittance f2 of the outer surface 32, the end-face distance z1 between the inner surface 31 and the phototransmitter 10, the end-face distance z2 between the inner surface 31 and the photoreceiver 20, and so on, which are not necessarily described herein.
It should be noted that the evaluation parameter of the depth detection assembly 100 to be evaluated is not limited to the above example, and may further include some other evaluation parameter, or some variation of the above evaluation parameter, for example, the evaluation parameter of the depth detection assembly 100 to be evaluated may further include a left edge interval m between the optical transmitter 10 and the optical receiver 20, a right edge interval n between the optical transmitter 10 and the optical receiver 20, and the like, which is not limited herein.
The light receiver 20 may include a filter 21, a lens group 22, and an image sensor 23. Because the transmittance of the cover plate 30 cannot achieve 100%, most of the laser emitted by the light emitter 10 is transmitted through the cover plate 30 and then projected onto the object to be measured; however, after a part of the laser light reaches the cover 30, the laser light may be reflected multiple times on the inner surface 31 and/or the outer surface 32, and directly enter the light receiver 20 (specifically, reach the image sensor 23 after passing through the optical filter 21 and the lens group 22), and the detection accuracy and the imaging performance of the depth detection assembly 100 to be evaluated are disturbed, and the disturbed light may be referred to as disturbance light. In this process, the edge distance x between the optical transmitter 10 and the optical receiver 20, the field angle α of the optical transmitter 10, the field angle β of the optical receiver 20, the thickness y of the cover 30, the refractive index e of the cover 30, the transmittance f1 of the inner surface 31, the transmittance f2 of the outer surface 32, the end face distance z1 between the inner surface 31 and the optical transmitter 10, and the end face distance z2 between the inner surface 31 and the optical receiver 20 all affect the energy value of the interfering light. For example, when the distance x between the edges of the light emitter 10 and the light receiver 20 is larger, after the laser light emitted by the light emitter 10 reaches the cover 30, the number of times of reflection of the light beam passing through the inner surface 31 and/or the outer surface 32 is increased in the process of entering the light receiver 20 after multiple reflections occur, the light beam is absorbed by the cover 30 or refracted out of the outer surface 32 of the cover 30 during the multiple reflections, and thus the amount of the interfering light energy finally entering the light receiver 20 is smaller, and therefore the interfering signal of the depth detection assembly 100 to be evaluated is smaller. In other words, the interference light energy value of the depth detection assembly 100 to be evaluated and the edge separation x of the light emitter 10 and the light receiver 20 may be in a negative correlation.
The evaluation parameters of the depth detection assembly 100 to be evaluated are substituted into a preset evaluation model to obtain an actual output energy value. The preset evaluation model may be, for example, a mathematical function, a statistical data set, or an optical simulation model, and the preset evaluation model may be set in advance by a human.
Referring to fig. 4, in one example, the aspect ratio of the image sensor 23 is 4: 3. the energy power of the laser emitted by the light emitter 10 is 1 w. The evaluation parameters of the depth detection assembly 100 to be evaluated are: the actual output energy value and the distribution thereof shown in fig. 4 can be obtained by substituting 3mm of the edge distance between the light emitter 10 and the light receiver 20, 20 ° of the angle of view of the light emitter 10, 45 ° of the angle of view of the light receiver 20, 2mm of the thickness of the cover plate 30, 1.6 of the refractive index of the cover plate 30, 96% of the transmittance of the inner surface 31, 95% of the transmittance of the outer surface 32, 1.5mm of the end surface distance between the inner surface 31 and the light emitter 10, and 1.8mm of the end surface distance between the inner surface 31 and the light receiver 20 into the optical simulation model, wherein the actual output energy value is the energy value of the laser light emitted by the light emitter 10 in the depth detection assembly 100 in the optical simulation model, and the laser light finally reaches the image sensor 23 after being reflected for multiple times by the cover plate 30. The distribution corresponding to the actual output energy values is shown in fig. 4, where the energy points are concentrated in the middle of the edge of the image sensor 23 in the lateral direction (the abscissa value is in the range of [ -0.5, +0.5], and the ordinate value is in the range of [ -2.0, -1.4 ]). The energy value of each energy point is the energy value detected by each pixel point in the image sensor 23 in the optical simulation model. In the example of fig. 4, the maximum value of the energy values detected by the pixels in the image sensor 23 is 5.25, and the minimum value is 0. The energy values corresponding to all the energy points in fig. 4 are added to obtain an actual output energy value of 5621.4.
After obtaining the actual output energy value, the processor 200 may determine whether the interference signal of the depth detection component 100 to be evaluated affects the effective signal according to a magnitude relationship between the actual output energy value and the standard critical energy value.
Referring to fig. 5 and 6, in some embodiments, obtaining the standard critical energy value (i.e. 01) includes:
011: detecting an evaluation parameter of the depth detection assembly 300 in a critical energy state;
012: substituting the evaluation parameters of the depth detection assembly 300 in the critical energy state into a preset evaluation model to obtain a critical output energy value; and
013: and calculating a standard critical energy value according to the critical output energy value.
Referring to fig. 6, in some embodiments, the system 1000 for evaluating an interference signal further includes a depth detection module 300 in a critical energy state. Processor 200 may also be used to perform the methods of 011, 012, and 013.
That is, processor 200 may also be configured to: detecting an evaluation parameter of the depth detection assembly 300 in a critical energy state; substituting the evaluation parameters of the depth detection assembly 300 in the critical energy state into a preset evaluation model to obtain a critical output energy value; and calculating a standard critical energy value from the critical output energy value.
Referring to fig. 3, similar to the structure of the depth detection assembly 100 to be evaluated, the depth detection assembly 300 in the critical energy state may also include a light emitter 10, a light receiver 20, and a cover plate 30. The cover plate 30 includes opposing inner and outer surfaces 31, 32, with the optical transmitter 10 and the optical receiver 20 both disposed on the side of the inner surface 31. The evaluation parameters of the depth detection assembly 300 in the critical energy state include any one or more of: the distance between the edges of the optical transmitter 10 and the optical receiver 20, the angle of view of the optical transmitter 10, the angle of view of the optical receiver 20, the thickness of the cover 30, the refractive index of the cover 30, the transmittance of the inner surface 31, the transmittance of the outer surface 32, the end face distance between the inner surface 31 and the optical transmitter 10, and the end face distance between the inner surface 31 and the optical receiver 20. In addition, the evaluation parameters of the depth detection assembly 300 in the critical energy state may further include a left edge interval m between the optical transmitter 10 and the optical receiver 20 and a right edge interval n between the optical transmitter 10 and the optical receiver 20.
It should be noted that the explanation of the structure and evaluation parameters of the depth detection module 100 to be evaluated in the foregoing embodiment is also applicable to the depth detection module 300 in the critical energy state in the embodiment of the present application, and the explanation is not repeated here.
In obtaining the standard threshold energy value, the depth detection element 300 in the threshold energy state may be selected. For example, there are a total of multiple sets (e.g., 10 sets) of depth detection components in different design states. The calibration device detects the energy value of the interference light received by the light receiver in the depth detection assemblies, and then selects the depth detection assembly in the critical energy state as the depth detection assembly 300. The critical energy state may be a state in which the disturbing light energy value is equal to the predetermined light energy value. The critical energy state is defined as that the interference light energy value is lower than the preset light energy value, so that the effective signal is not interfered, and the test precision and the performance of the depth detection assembly are not influenced; if the interference light energy value exceeds the predetermined light energy value, the effective signal is interfered, and the testing precision and the performance of the depth detection assembly are further influenced. The predetermined light energy value may be an empirical value.
For example, 10 design states are designed for the depth detection assembly, one set for each design state. 10 groups of depth detection assemblies in different design states, and each group comprises 50 depth detection assembly objects. The calibration device detects the interference light energy values received by the light receiver in the 50 × 10 — 500 depth detection assembly entities, and then selects the depth detection assembly in the critical energy state as the depth detection assembly 300.
After the depth detection module 300 in the critical energy state is selected, the processor 200 detects the evaluation parameters of the depth detection module 300, substitutes the detected evaluation parameters into a preset evaluation model to obtain a critical output energy value, and calculates a standard critical energy value according to the critical output energy value.
In some embodiments, the depth detection assembly 100 to be evaluated and the depth detection assembly 300 in the critical energy state may be a time-of-flight assembly or a structured light assembly. When the depth detection module 100 to be evaluated is a time-of-flight module, the depth detection module 300 in the critical energy state is also a time-of-flight module; when the depth detection element 100 to be evaluated is a structured light element, the depth detection element 300 in the critical energy state is also a structured light element.
Specifically, the time-of-flight component emits near-infrared light through the light emitter 10. The laser light emitted from the light emitter 10 is reflected by the object to be measured and received by the image sensor 23 in the light receiver 20. The depth detection assembly 100 to be evaluated calculates the depth information of the object to be detected in the target scene according to the time difference or the phase difference between the light signal received by the image sensor 23 and the light signal emitted by the light emitter 10.
The structured light assembly projects a laser pattern outwards through the light emitter 10, and the laser pattern projected by the light emitter 10 is reflected by the object to be measured and then received by the image sensor 23 in the light receiver 20. The depth detection assembly 100 to be evaluated obtains the laser pattern reflected by the object to be detected according to the light signal received by the image sensor 23. The depth detection component 100 to be evaluated calculates the deviation value of each pixel point in the laser pattern and each corresponding pixel point in the reference pattern by adopting an image matching algorithm, and further obtains the depth information of the object to be detected in the target scene according to the deviation value. The Image matching algorithm may be a Digital Image Correlation (DIC) algorithm. Of course, other image matching algorithms may be employed instead of the DIC algorithm.
Referring to fig. 6 and 7, in some embodiments, detecting the evaluation parameter of the depth detection module 300 in the critical energy state (i.e., 011) includes:
0111: detecting evaluation parameters of a plurality of depth detection assemblies 300 in critical energy states;
substituting the evaluation parameters of the depth detection assembly 300 in the critical energy state into a preset evaluation model to obtain a critical output energy value (i.e., 012), including:
0121: substituting the evaluation parameters of the depth detection assemblies 300 in the critical energy state into a preset evaluation model to obtain a plurality of critical output energy values;
calculating a standard critical energy value (i.e., 013) from the critical output energy value, including:
0131: and calculating a standard critical energy value according to the plurality of critical output energy values.
Referring to fig. 6, in some embodiments, processor 200 may also be used to perform the methods of 0111, 0121, and 0131.
That is, processor 200 may also be configured to: detecting evaluation parameters of a plurality of depth detection assemblies 300 in critical energy states; substituting the evaluation parameters of the depth detection assemblies 300 in the critical energy state into a preset evaluation model to obtain a plurality of critical output energy values; and calculating a standard critical energy value from the plurality of critical output energy values.
Specifically, detecting the evaluation parameters of the plurality of depth detection assemblies 300 in the critical energy state (i.e., 0111) may be measuring the evaluation parameters of the plurality of depth detection assemblies 300 in the critical energy state in different design states. Taking the thickness of the cover plate 30 as an example, the evaluation parameters of 5 depth detection modules 300 in critical energy states in different design states can be detected. For example, the depth detection module 300 in the critical energy state is designed to have thicknesses of 0.8mm, 1.0mm, 1.2mm, 1.5mm, and 2.0mm for 5 cover plates 30, and the measured values of the thicknesses are 0.85mm, 0.95mm, 1.16mm, 1.45mm, and 2.09mm, respectively.
The detection of the evaluation parameters of a plurality of depth detection modules 300 in the critical energy state (i.e. 0111) may also be a measurement of the evaluation parameters of a plurality of depth detection modules 300 in the critical energy state in the same design state. Taking the thickness of the cover plate 30 as an example, the evaluation parameters of 5 depth detection modules 300 in the critical energy state in the same design state may be detected. For example, the depth detection module 300 in the critical energy state, in which the thicknesses of 5 cover plates 30 are all designed to be 1.0mm, is tested, and the measured values of the thicknesses are 0.85mm, 0.98mm, 1.23mm, 1.09mm, and 0.92mm, respectively.
The detection of the evaluation parameters of the depth detection assemblies 300 in the critical energy state (i.e. 0111) may also be the measurement of the evaluation parameters of a plurality of sets of depth detection assemblies 300 in the critical energy state in different design states, wherein the design states of the depth detection assemblies 300 in the critical energy state in each set are the same. Taking the thickness of the cover plate 30 as an example, the evaluation parameters of 5 sets of the depth detection assemblies 300 in the critical energy state in different design states may be detected, wherein the design states of the depth detection assemblies 300 in the critical energy state in each set are the same. For example, the depth detection modules 300 in the critical energy state are designed to have thicknesses of 0.8mm, 1.0mm, 1.2mm, 1.5mm and 2.0mm for 5 groups of cover plates 30, each group includes 3 depth detection modules 300 in the critical energy state having the same design state, and the measured values of the thicknesses are 0.85mm, 0.83mm, 0.75mm, 0.95mm, 0.88mm, 0.90mm, 1.16mm, 1.02mm, 0.99mm, 1.45mm, 1.52mm, 1.1.48mm, 2.02mm, 1.95mm and 2.09mm, respectively.
In one example, first, a design of 5 design states is made for the depth detection component; secondly, 50 corresponding objects are correspondingly manufactured in each design state; then, all the objects with the interference light energy value in a small interval near the preset light energy value in each design state are selected; then, substituting the evaluation parameters of the real objects into a preset evaluation model to obtain a plurality of critical output energy values; and finally, carrying out averaging operation on the plurality of critical output energy values, and carrying out averaging operation or median operation after the maximum value and the minimum value are removed to obtain the standard critical energy value. For example, the resulting plurality of critical output energy values are 5740.4, 5689.2, 5690.8, 5543.6, 5680.3, 5723.9, and 5704.0, respectively. The processor 200 may perform an averaging operation according to the plurality of critical output energy values to obtain the reference output energy value 5681.4. And calculating the standard critical energy value according to the average value of the plurality of critical output energy values, so that the standard critical energy value is more accurate and reasonable.
Referring to fig. 8, in some embodiments, calculating a standard threshold energy value (i.e. 013) according to the threshold output energy value includes:
0132: calculating a reference output energy value according to the critical output energy value; and
0133: and calculating the standard critical energy value according to the reference output energy value and a preset safety margin.
Referring to FIG. 6, in some embodiments, processor 200 may also be used to perform the methods of 0132 and 0133.
That is, processor 200 may also be configured to: calculating a reference output energy value according to the critical output energy value; and calculating the standard critical energy value according to the reference output energy value and a preset safety margin.
Specifically, in one example, processor 200 obtains a critical output energy value of 5726.2. Assume that the reference output energy value obtained from the critical output energy value is also 5726.2. The preset safety margin may be a coefficient (e.g., 10%), and the standard critical energy value is calculated according to the reference output energy value and the preset safety margin, and may be obtained by multiplying the reference output energy value by the preset safety margin. For example, the standard critical energy value is 5726.2 × 5153.63 (1-10%). Secondly, the preset safety margin can be an energy value (such as 500), then the standard critical energy value is calculated according to the reference output energy value and the preset safety margin, and the preset safety margin can be subtracted on the basis of the reference output energy value. For example, the standard critical energy value is 5726.2-500 ═ 5226.2.
In the embodiment of the present application, by setting the preset safety margin, the depth detection component 100 slightly lower than the standard critical energy value but higher than the standard critical energy value added with the preset safety margin is also evaluated as affecting the effective signal, so that the method for evaluating the interference signal and the system 1000 for evaluating the interference signal have a suitable fault tolerance range, and the actual reliability of the method for evaluating the interference signal and the system 1000 for evaluating the interference signal can be improved.
It should be noted that, in the foregoing embodiment, when the standard critical energy value is calculated according to a plurality of critical output energy values, the preset safety margin may also be increased to further improve the practical reliability of the method for evaluating an interference signal and the system 1000 for evaluating an interference signal.
Referring to fig. 9, in some embodiments, evaluating whether the interference signal of the depth detection module 100 to be evaluated affects the effective signal (i.e. 03) according to the actual output energy value and the standard threshold energy value includes:
031: when the actual output energy value is smaller than the standard critical energy value, evaluating that the interference signal does not influence the effective signal; and
032: when the actual output energy value is larger than the standard critical energy value, the effective signal is influenced by the evaluation interference signal.
Referring to fig. 6, in some embodiments, processor 200 may also be used to perform the methods of 022 and 023.
That is, processor 200 may also be configured to: when the actual output energy value is smaller than the standard critical energy value, evaluating that the interference signal does not influence the effective signal; and evaluating that the interference signal affects the effective signal when the actual output energy value is greater than the standard critical energy value.
It can be understood that the actual output energy value is in positive correlation with the energy value of the interference light, and when the energy value of the interference light is larger, the actual output energy value is larger; when the energy value of the disturbance light is smaller, the actual output energy value is smaller. Therefore, when the actual output energy value is larger, it indicates that the more interference signals are received by the optical receiver 20, the more easily the interference signals affect the effective signal; when the actual output energy value is smaller, it indicates that the optical receiver 20 receives fewer interference signals, and the interference signals affect the effective signal more easily.
Specifically, taking the standard critical energy value of 5113.6 as an example, if the actual output energy value obtained by the processor 200 is 5110.4, and the actual output energy value is smaller than the standard critical energy value, then the following are evaluated: the interfering signal does not affect the desired signal. If the actual output energy value obtained by the processor 200 is 5623.0, the actual output energy value is greater than the standard critical energy value, and then the following is evaluated: the interfering signal may affect the desired signal.
It should be noted that, when the actual output energy value is equal to the standard threshold energy value, it may be evaluated that the interference signal does not affect the effective signal, and it may also be evaluated that the interference signal affects the effective signal, which is not limited herein.
Referring to fig. 10, an electronic device 2000 is further provided in the present disclosure. The electronic device 1000 may be a mobile phone, a tablet computer, a notebook computer, an intelligent wearable device (such as an intelligent watch, an intelligent bracelet, an intelligent glasses, an intelligent helmet, etc.), a head display device, a virtual reality device, etc., without limitation. The electronic device 2000 includes a depth detection assembly 100 to be evaluated and a processor 200. The processor 200 is configured to execute the method for evaluating an interference signal according to any of the above embodiments.
For example, the processor 200 may be configured to perform the following method of evaluating an interfering signal:
01: obtaining a standard critical energy value;
02: substituting the evaluation parameters of the depth detection assembly 100 to be evaluated into a preset evaluation model to obtain an actual output energy value; and
03: and evaluating whether the interference signal of the depth detection component 100 to be evaluated influences the effective signal or not according to the actual output energy value and the standard critical energy value.
For another example, the processor 200 may be configured to perform the following method of evaluating an interfering signal:
011: detecting an evaluation parameter of the depth detection assembly 300 in a critical energy state;
012: substituting the evaluation parameters of the depth detection assembly 300 in the critical energy state into a preset evaluation model to obtain a critical output energy value; and
013: and calculating a standard critical energy value according to the critical output energy value.
Referring to fig. 11, the present embodiment further provides a computer readable storage medium 3000 on which a computer program is stored. The computer program, when executed by the processor 200, implements the method of evaluating an interfering signal of any of the embodiments described above.
For example, the computer program, when executed by the processor 200, implements the following method of evaluating an interfering signal:
01: obtaining a standard critical energy value;
02: substituting the evaluation parameters of the depth detection assembly 100 to be evaluated into a preset evaluation model to obtain an actual output energy value; and
03: and evaluating whether the interference signal of the depth detection component 100 to be evaluated influences the effective signal or not according to the actual output energy value and the standard critical energy value.
As another example, the computer program when executed by the processor 200 implements the following method of evaluating an interfering signal:
011: detecting an evaluation parameter of the depth detection assembly 300 in a critical energy state;
012: substituting the evaluation parameters of the depth detection assembly 300 in the critical energy state into a preset evaluation model to obtain a critical output energy value; and
013: and calculating a standard critical energy value according to the critical output energy value.
In summary, the method for evaluating an interference signal, the system 1000 for evaluating an interference signal, the electronic device 2000 and the computer-readable storage medium 3000 according to the embodiments of the present application obtain an actual output energy value by substituting an evaluation parameter of the depth detection module 100 to be evaluated into a preset evaluation model, evaluate the depth detection module 100 to be evaluated according to the actual output energy value and the obtained standard critical energy value, and output a conclusion whether the interference signal of the depth detection module 100 to be evaluated affects an effective signal, so that whether the interference signal of the depth detection module 100 to be evaluated in a design state affects the effective signal can be determined without manufacturing and measuring a corresponding real object for the depth detection module 100 to be evaluated in the design state, a development cycle can be shortened, development cost can be reduced, and one or more evaluation parameters in the design state of the depth detection module can be changed, and whether the corresponding interference signal influences the corresponding effective signal is evaluated, so that the method is very convenient and fast, and the flexibility of the research and development process can be improved.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
Although embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present application, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (9)
1. A method for evaluating an interfering signal, comprising:
obtaining a standard critical energy value;
substituting the evaluation parameters of the depth detection assembly to be evaluated into a preset evaluation model to obtain an actual output energy value; and
evaluating whether the interference signal of the depth detection component to be evaluated influences an effective signal or not according to the actual output energy value and the standard critical energy value;
the obtaining of the standard critical energy value comprises:
detecting evaluation parameters of the depth detection assembly in the critical energy state;
substituting the evaluation parameters of the depth detection assembly in the critical energy state into the preset evaluation model to obtain a critical output energy value; and
and calculating the standard critical energy value according to the critical output energy value.
2. The method of claim 1, wherein the detecting the evaluation parameter of the depth detection component in the critical energy state comprises:
detecting evaluation parameters of a plurality of depth detection assemblies in the critical energy state;
the substituting the evaluation parameter of the depth detection assembly in the critical energy state into the preset evaluation model to obtain a critical output energy value includes:
substituting the evaluation parameters of the depth detection assemblies in the critical energy state into the preset evaluation model to obtain a plurality of critical output energy values;
said calculating said standard critical energy value from said critical output energy value comprises:
and calculating the standard critical energy value according to a plurality of critical output energy values.
3. The method of claim 1, wherein said calculating the standard critical energy value from the critical output energy value comprises:
calculating a reference output energy value according to the critical output energy value; and
and calculating the standard critical energy value according to the reference output energy value and a preset safety margin.
4. The method according to claim 1, wherein the evaluating whether the interference signal of the depth detection module to be evaluated affects the effective signal according to the actual output energy value and the standard critical energy value comprises:
when the actual output energy value is smaller than the standard critical energy value, evaluating that the interference signal does not influence the effective signal; and
evaluating that the interference signal affects the valid signal when the actual output energy value is greater than the standard critical energy value.
5. The method of claim 1, wherein the depth detection assembly to be evaluated and the depth detection assembly in the critical energy state each comprise a light emitter, a light receiver, and a cover plate, the cover plate comprising opposing inner and outer surfaces, the light emitter and the light receiver each being disposed on a side of the inner surface; the evaluation parameters of the depth detection assembly to be evaluated and the evaluation parameters of the depth detection assembly in the critical energy state both comprise any one or more of the following:
the optical transmitter is spaced from the edge of the optical receiver;
a field angle of the light emitter;
a field angle of the optical receiver;
the thickness of the cover plate;
the refractive index of the cover plate;
a transmittance of the inner surface;
a transmittance of the outer surface;
the distance between the inner surface and the end face of the light emitter;
the inner surface is spaced from an end surface of the light receiver.
6. The method of evaluating an interference signal according to claim 1, wherein the depth detection module to be evaluated and the depth detection module in the critical energy state are time-of-flight modules or structured light modules.
7. A system for evaluating an interference signal, comprising a depth detection component to be evaluated and a processor for performing the method for evaluating an interference signal according to any one of claims 1 to 6.
8. An electronic device, characterized in that the electronic device comprises a depth detection component to be evaluated and a processor for performing the method of evaluating an interference signal according to any of claims 1-6.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of evaluating an interference signal according to any one of claims 1 to 6.
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