CN114578971B - Infrared induction detection system and method - Google Patents
Infrared induction detection system and method Download PDFInfo
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Abstract
The application relates to an infrared induction detection system and method. The infrared sensing detection system includes: an infrared reflection module; at least two infrared sensing modules; each infrared sensing module is arranged on a panel of the equipment; a controller; the controller is respectively connected with each infrared sensing module; each infrared induction module is used for emitting infrared signals with preset duration and receiving infrared reflection signals reflected by the infrared reflection modules; the controller is used for obtaining the duration of each infrared reflection signal, obtaining the discrete degree according to each duration, and determining the infrared induction consistency detection result based on the discrete degree. The quantitative module induction consistency test method provided by the application has the advantages of high accuracy, effective improvement of test efficiency, reflection of consistency differences of all infrared induction modules and convenience in verifying and controlling incoming materials or assembly consistency.
Description
Technical Field
The application relates to the technical field of quality detection, in particular to an infrared induction detection system and method.
Background
The range hood on the market generally adopts a left infrared sensing module and a right infrared sensing module to realize the gesture recognition function, wherein the infrared sensing module comprises an infrared transmitting unit and an infrared receiving unit, and the gesture recognition function can be realized by detecting the sequence of hands of a user passing through the left side and the right side; the left and right infrared sensing modules are arranged on the range hood, and the sensing sensitivity is influenced by errors of the infrared transmitting and receiving units, assembly errors, glass transmittance errors and the like, so that the problem that the sensitivity of infrared signals sensed by the left and right infrared sensing modules is inconsistent is easily caused, and misjudgment conditions such as false triggering or non-triggering are caused; aiming at the problem, most of the existing solutions are used for controlling consistency of incoming materials or assembly processes, after the whole machine is assembled, whether gesture recognition is normal or not is detected by hands, a quantitative module induction consistency detection method is lacked, consistency differences of left and right induction modules are not convenient to reflect well, and effects of controlling the incoming materials or the assembly consistency are not convenient to verify.
In the implementation process, the inventor finds that at least the following problems exist in the conventional technology: the existing infrared induction consistency detection method is poor in detection effect and low in accuracy.
Disclosure of Invention
In view of the foregoing, it is desirable to provide an infrared sensing detection system and method.
An infrared sensing detection system comprising:
an infrared reflection module;
at least two infrared sensing modules; each infrared sensing module is arranged on a panel of the equipment;
a controller; the controller is respectively connected with each infrared sensing module;
each infrared induction module is used for emitting infrared signals with preset duration and receiving infrared reflection signals reflected by the infrared reflection modules; the controller is used for obtaining the duration of each infrared reflection signal, obtaining the discrete degree according to each duration, and determining the infrared induction consistency detection result based on the discrete degree.
In one embodiment, the infrared sensing module comprises an infrared emission unit and an infrared receiving unit; the infrared emission unit and the infrared receiving unit are connected with the controller;
the controller is used for controlling the infrared emission unit to emit infrared signals with preset duration;
the infrared receiving unit receives the infrared reflection signal and converts the infrared reflection signal into an electric signal; the infrared receiving unit sends the electric signal to the controller;
The controller receives the electric signal and obtains the effective duration of the electric signal; the controller confirms the effective duration of the electrical signal as the duration of the infrared reflected signal.
In one embodiment, the controller processes each duration based on a standard deviation formula to obtain a standard deviation as a discrete degree, and determines an infrared induction consistency detection result according to a magnitude relation between a preset discrete error value and the discrete degree.
In one of the embodiments of the present invention,
the controller compares the discrete degree with a preset discrete error value to obtain a comparison result;
under the condition that the discrete degree is larger than a preset discrete error value as a comparison result, the controller determines that the infrared sensing consistency detection result is unqualified;
and under the condition that the comparison result is that the discrete degree is smaller than or equal to a preset discrete error value, the controller determines that the infrared sensing consistency detection result is qualified.
In one embodiment, each infrared sensing module is arranged on one side surface of the panel to form a sensing area on the panel;
the infrared reflection module is arranged at the test position; the number of the test positions is a plurality of; the test position is determined based on the sensing area; the infrared reflection surface of the infrared reflection module faces one side surface of the panel, and the projection of the infrared reflection module on the panel covers the sensing area.
In one embodiment, the method comprises the steps of:
the controller obtains each time length of the infrared reflection module when the number of the infrared induction modules is 2 and is arranged at different test positions, and obtains the difference value of the two time lengths of the infrared reflection module when the infrared reflection module is arranged at different test positions and the average value of all the difference values according to each time length of the infrared reflection module when the infrared reflection module is arranged at different test positions;
the controller processes the average value and each difference value based on a standard deviation formula to obtain a first standard deviation as a degree of dispersion.
In one embodiment, the controller obtains each duration of the infrared reflection module when the number of the infrared sensing modules is greater than 2 and obtains a first average value of all durations of the infrared reflection module when the infrared reflection module is located at a certain test position according to each duration of the infrared reflection module when the infrared reflection module is located at the certain test position;
the controller processes the first average value and each time length under the condition that the infrared reflection module is arranged at a certain test position based on a standard deviation formula, and a second standard deviation is obtained as the discrete degree.
In one embodiment, if the controller confirms that the infrared sensing consistency detection results are all qualified when the infrared reflection module is arranged at any test position, the controller obtains a second average value according to the first average value when the infrared reflection module is arranged at each test position;
The controller processes the second average value and each first average value based on a standard deviation formula to obtain a third standard deviation as a degree of dispersion.
In one embodiment, the display is connected with the controller;
the display is used for displaying the infrared induction consistency detection result.
An infrared sensing detection method is applied to the infrared sensing detection system, and comprises the following steps:
acquiring the duration of infrared reflection signals received by at least two infrared sensing modules arranged on a panel of the equipment; the infrared reflection signal is a signal reflected by the infrared reflection module under the condition that the infrared induction module emits infrared signals with preset time length;
and obtaining the discrete degree according to each time length, and determining the infrared induction consistency detection result based on the discrete degree.
One of the above technical solutions has at least the following advantages and beneficial effects:
according to the application, at least two infrared sensing modules arranged on a panel of the equipment respectively transmit infrared signals with preset time length, and receive infrared reflection signals reflected by the infrared reflection modules, and a controller acquires the time length of each infrared reflection signal and obtains the discrete degree according to each time length, so that the controller determines the consistency detection result of the infrared sensing modules based on the discrete degree. The application provides a quantitative module induction consistency test method, which is characterized in that the infrared induction consistency test result of each infrared induction module is determined according to the discrete degree obtained by the time length of each infrared reflection signal reflected by the infrared reflection module, the accuracy is high, the test efficiency is effectively improved, the consistency difference of each infrared induction module is reflected, and the effect of managing the incoming material or assembling consistency is conveniently verified.
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In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a block diagram of an infrared sensing detection system in one embodiment;
FIG. 2 is a block diagram of an infrared sensing system according to another embodiment;
FIG. 3 is a schematic diagram of an infrared sensing detection flow of the controller in the case of confirming that the number of infrared sensing modules is 2 according to an embodiment;
FIG. 4 is a flow chart of an infrared sensing method according to an embodiment;
fig. 5 is a block diagram of an infrared sensing device according to an embodiment.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Embodiments of the application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that the terms first, second, etc. as used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element.
Spatially relative terms, such as "under", "below", "beneath", "under", "above", "over" and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "below" and "under" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments should be understood as "electrical connection", "communication connection", and the like if there is transmission of electrical signals or data between objects to be connected.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
In one embodiment, as shown in fig. 1, an infrared sensing detection system is provided, which may include:
an infrared reflection module;
at least two infrared sensing modules; each infrared sensing module is arranged on a panel of the equipment;
a controller; the controller is respectively connected with each infrared sensing module;
Each infrared induction module is used for emitting infrared signals with preset duration and receiving infrared reflection signals reflected by the infrared reflection modules; the controller is used for obtaining the duration of each infrared reflection signal, obtaining the discrete degree according to each duration, and determining the infrared induction consistency detection result based on the discrete degree.
The infrared sensing module can be arranged on a panel of each type of equipment with an infrared gesture sensing function, and the equipment can be a range hood, a gas water heater, an air conditioner and the like; for example, the infrared sensing module can be arranged on a panel of the range hood; the infrared sensing module is used for transmitting and receiving infrared signals; the infrared reflection module can be a baffle plate or other objects for simulating the hand to reflect infrared signals; the preset time length can be set according to actual conditions, for example, the preset time length can be 1 second; the controller may be a single-chip microcomputer.
Specifically, the number of the infrared sensing modules arranged on the panel of the equipment is at least two, and the sensing consistency of each infrared sensing module is quantitatively tested before the equipment leaves the factory. The infrared signals with preset time length are emitted through the infrared sensing modules, the infrared signals emitted to the infrared reflecting modules are reflected to the infrared sensing modules, the errors of the infrared sensing modules are considered, the assembly errors, the transmittance errors of glass panels arranged on the infrared sensing modules of some devices and the like are influenced, the infrared signals emitted by the infrared sensing modules are possibly weakened to different degrees, so that the time length of the infrared reflection signals received by the infrared sensing modules is different, the controller can obtain the time length of the infrared reflection signals by acquiring the time length of the infrared reflection signals, the discrete degrees reflect the difference degrees among various values of the variables, namely the difference degrees among the time lengths, the discrete degrees can effectively reflect the tiny deviation of the sensing consistence among the infrared sensing modules, the controller can further determine the infrared sensing consistence detection results of the infrared sensing modules based on the discrete degrees obtained according to the time lengths, the more discrete degrees indicate that the sensing consistence of the infrared sensing modules is worse, the incoming materials or the assembly consistence effect is poorer, the more discrete degrees indicate that the infrared sensing consistence of the infrared sensing modules is better, and the infrared sensing modules are more or the consistence is better, and the infrared sensing module is more or the infrared sensing module is more consistent, the infrared sensing module is better, and the infrared sensing module is better in the consistence is better.
According to the application, the infrared sensing module arranged on the panel of the equipment emits infrared signals with preset time length, the infrared reflecting module reflected by the infrared reflecting module is received, the controller obtains the time length of each infrared reflecting signal, the discrete degree is obtained according to each time length, and the infrared sensing consistency detection result among the infrared sensing modules is determined based on the discrete degree. The quantitative module induction consistency test method provided by the application has the advantages that the test efficiency is high, the discrete degree obtained according to the time length of each infrared reflection signal effectively reflects the infrared induction difference caused by the influences of the errors of each infrared induction module, the assembly errors or the glass transmittance errors and the like, and the micro difference can be effectively reflected, so that the infrared induction consistency result is determined according to the discrete degree obtained according to the time length of each infrared reflection signal, the accuracy is high, the effect of managing and controlling incoming materials or the assembly consistency is convenient to verify, the gesture false touch risk is effectively reduced, the product stability is improved, and the product quality is ensured.
In one embodiment, as shown in fig. 2, the infrared sensing module may include an infrared emitting unit and an infrared receiving unit; the infrared emission unit and the infrared receiving unit are connected with the controller;
The controller is used for controlling the infrared emission unit to emit infrared signals with preset duration;
the infrared receiving unit receives the infrared reflection signal and converts the infrared reflection signal into an electric signal; the infrared receiving unit sends the electric signal to the controller;
the controller receives the electric signal and obtains the effective duration of the electric signal; the controller confirms the effective duration of the electrical signal as the duration of the infrared reflected signal.
The infrared receiving unit of the infrared sensing module can be used for converting the received optical signals into electric signals.
In one example, the infrared sensing detection system may further include a display coupled to the controller;
the display is used for displaying the infrared induction consistency detection result.
Specifically, after the infrared sensing detection system is powered on, the controller can control the infrared emission units in each infrared sensing module to emit periodic infrared signals with preset time length according to set program logic under the condition of receiving a self-checking instruction, the infrared signals are reflected to the infrared receiving units of the corresponding infrared sensing modules through the infrared reflection modules, and each infrared receiving unit converts the received infrared reflection signals into electric signals and sends the electric signals to the controller; the controller receives the electric signals sent by the infrared receiving units and obtains effective time lengths of the electric signals, the effective time lengths of the electric signals are the time lengths of the infrared reflection signals, the controller can judge the induction consistency difference of the infrared sensing modules according to the difference of the effective time lengths of the electric signals, namely, the controller can determine the infrared induction consistency detection results of the infrared sensing modules according to the discrete degree of the effective time lengths of the electric signals, and the infrared induction consistency detection results can be intuitively displayed through the display.
In one embodiment, the controller processes each duration based on a standard deviation formula to obtain a standard deviation as a discrete degree, and determines an infrared induction consistency detection result according to a magnitude relation between a preset discrete error value and the discrete degree.
Wherein, the standard deviation is a measurement concept of the degree of a group of values scattered from the average value, and can reflect the discrete degree of the data set; standard deviation formulas may be used to process the values to obtain standard deviations.
Specifically, when the controller receives the electric signals sent by each infrared receiving unit and obtains the effective duration of each electric signal to confirm the duration of each infrared reflection signal, the controller can process the duration of each infrared reflection signal based on a standard deviation formula to obtain the standard deviation as the discrete degree, and then the controller determines the infrared induction consistency detection result between each infrared induction module according to the magnitude relation between the discrete degree confirmed by the standard deviation and the preset discrete error value, so as to judge whether the fluctuation of response change between each infrared induction module is within a reasonable range. Under normal conditions, the fact that the discrete degree of the duration of each infrared reflection signal is located in a certain range can be regarded as qualified infrared induction consistency of each infrared induction module, and otherwise, the infrared induction consistency of each infrared induction module is unqualified.
In one of the embodiments of the present invention,
the controller compares the discrete degree with a preset discrete error value to obtain a comparison result;
under the condition that the discrete degree is larger than a preset discrete error value as a comparison result, the controller determines that the infrared sensing consistency detection result is unqualified;
and under the condition that the comparison result is that the discrete degree is smaller than or equal to a preset discrete error value, the controller determines that the infrared sensing consistency detection result is qualified.
Specifically, the controller may compare the discrete degree obtained according to the duration of each infrared reflection signal with a preset discrete error value, and determine an infrared induction consistency detection result according to the obtained comparison result; under the condition that the discrete degree is larger than the preset discrete error value as a comparison result, the fact that the induction difference of each infrared induction module is larger is indicated, so that the controller determines that the infrared induction consistency detection result of each infrared induction module is unqualified; when the comparison result is that the degree of dispersion is smaller than or equal to the preset discrete error value, the fact that the infrared induction difference of each infrared induction module is smaller is indicated, and therefore the controller determines that the infrared induction consistency detection result of each infrared induction module is qualified. For example, the controller processes each duration based on a standard deviation formula to obtain a standard deviation value s, then compares the standard deviation value s with a preset discrete error value K, if the comparison result is that s is greater than K, then the controller confirms that the infrared induction consistency is not qualified, if the comparison result is that s is less than or equal to K, then confirms that the infrared induction consistency is qualified in a rest period, and for equipment provided with an infrared induction module with the infrared induction consistency not qualified, the infrared induction module can be correspondingly adjusted or subjected to other maintenance processing, so that the product stability is ensured, and the product quality is ensured.
According to the infrared sensing device, the infrared transmitting unit transmits infrared signals with preset time length, the infrared receiving unit receives infrared reflection signals reflected by the infrared reflecting modules and converts the infrared reflection signals into electric signals, so that the controller can determine the time length of the infrared reflection signals according to the effective time length of the electric signals, and under the condition that the time length of each infrared reflection signal is determined, the controller processes each time length based on a standard deviation formula to obtain standard deviation as a discrete degree, and determines the infrared sensing consistency detection result of each infrared sensing module according to the size relation between the discrete degree and the preset discrete error value. Therefore, the quantitative infrared sensing consistency detection method provided by the application can effectively detect the sensing difference of each infrared detection module, has high test efficiency and accuracy, and is convenient for controlling the feeding or assembling consistency.
In one embodiment, each infrared sensing module is arranged on one side surface of the panel to form a sensing area on the panel;
the infrared reflection module is arranged at the test position; the number of the test positions is a plurality of; the test position is determined based on the sensing area; the infrared reflection surface of the infrared reflection module faces one side surface of the panel, and the projection of the infrared reflection module on the panel covers the sensing area.
Specifically, the infrared reflection surface of the infrared reflection module faces one side surface of the panel, the projection of the infrared reflection module on the panel covers the sensing area, the distance from the position of each infrared reflection module on the panel to the infrared reflection surface of the infrared reflection module is the same, so that the testing conditions of each infrared reflection module on the panel are the same, no additional detection error can be brought to the infrared sensing detection system, and the accuracy of the infrared sensing consistency detection result is guaranteed.
Each infrared sensing module forms an induction area on a panel of the device, and the test position is determined based on the induction area, so that infrared signals emitted by the infrared sensing modules can reach the infrared reflecting modules to be reflected. The number of the test positions can be a plurality of, and in order to improve the accuracy of the infrared sensing consistency detection result, a plurality of test positions can be set for testing, for example, the test positions can be 10 cm away from the panel or 20 cm away from the panel, and each test position can be set according to actual conditions.
In one embodiment, an infrared sensing detection system may include:
the controller obtains each time length of the infrared reflection module when the number of the infrared induction modules is 2 and is arranged at different test positions, and obtains the difference value of the two time lengths of the infrared reflection module when the infrared reflection module is arranged at different test positions and the average value of all the difference values according to each time length of the infrared reflection module when the infrared reflection module is arranged at different test positions;
The controller processes the average value and each difference value based on a standard deviation formula to obtain a first standard deviation as a degree of dispersion.
Specifically, if the number of infrared sensing modules arranged on the panel of the equipment is 2, for example, the left and right sides of the control panel of the range hood are respectively provided with the infrared sensing modules; the controller respectively obtains the time length of each infrared reflection signal under the condition that the infrared reflection module is arranged at different test positions, obtains the difference value of the time lengths of the infrared reflection signals received by the two infrared induction modules under the condition that the infrared reflection module is arranged at different test positions according to the time length of each infrared reflection signal under the different test positions, calculates the average value of all the difference values, and then processes the average value and each difference value based on a standard deviation formula, so that a first standard deviation is obtained, namely the degree of dispersion. The controller can confirm the infrared sensing consistency detection results of the two infrared sensing modules by comparing the discrete degree with the magnitude relation of the preset discrete error value.
For example, as shown in fig. 3, the test positions are set to be 5 cm, 10 cm and 15 cm from the panel of the apparatus, respectively; when receiving the test position of the infrared reflection module which is 5 cm away from the panel, the singlechip receives a self-checking instruction Under the condition of (1), controlling the co-workers of the infrared emission units on the left side and the right side to generate infrared signals which are started for 1 second and stopped for 1 second, receiving infrared reflection signals reflected by the infrared reflection modules by the infrared receiving units on the left side, converting the infrared reflection signals into electric signals, and measuring the effective duration of the electric signals to be T1 by the singlechip 1 The right infrared receiving unit receives the infrared reflection signal reflected by the infrared reflection module, converts the infrared reflection signal into an electric signal, and then the singlechip measures the effective duration of the electric signal to be T1 2 Thereby obtaining the difference delta T1= |T1 of each time length when the infrared reflection module is arranged at the test position 5 cm away from the panel 1 -T1 2 |。
When the infrared reflection module is arranged at a test position 10 cm away from the panel, the singlechip controls the infrared emission units on the left side and the right side to simultaneously generate infrared signals which are started for 1 second and stopped for 1 second; the infrared receiving unit on the left receives the infrared reflection signal reflected by the infrared reflection module, converts the infrared reflection signal into an electric signal, and then measures the effective duration of the electric signal to be T2 by the singlechip 1 The method comprises the steps of carrying out a first treatment on the surface of the The right infrared receiving unit receives the infrared reflection signal reflected by the infrared reflection module, converts the infrared reflection signal into an electric signal, and then the singlechip measures the effective duration of the electric signal to be T2 2 The method comprises the steps of carrying out a first treatment on the surface of the Obtaining a difference delta T2= |T2 of each time length when the infrared reflection module is arranged at a test position 10 cm away from the panel 1 -T2 2 |。
When the infrared reflection module is arranged at a test position 15 cm away from the panel, the singlechip controls the infrared emission units on the left side and the right side to simultaneously generate infrared signals which are started for 1 second and stopped for 1 second; the infrared receiving unit on the left receives the infrared reflection signal reflected by the infrared reflection module, converts the infrared reflection signal into an electric signal, and then measures the effective duration of the electric signal to be T3 by the singlechip 1 The method comprises the steps of carrying out a first treatment on the surface of the The right infrared receiving unit receives the infrared reflection signal reflected by the infrared reflection module, converts the infrared reflection signal into an electric signal, and then the singlechip measures the effective duration of the electric signal to be T3 2 The method comprises the steps of carrying out a first treatment on the surface of the Obtaining a difference delta T3= |T3 of each time length when the infrared reflection module is arranged at a test position 15 cm away from the panel 1 -T3 2 |。
The controller calculates the average value of the three differences, delta t avg = (Δt1+ Δt2+ +Δt3)/3, and the standard deviation s=sqrt (((Δt1- Δt) of the 3-order difference is calculated based on the standard deviation formula avg )^2+(△t2-△t avg )^2+(△t3-△t avg ) 2)/3); the controller judges whether the standard deviation s is larger than a preset discrete error value K, if the standard deviation s is larger than the preset discrete error value K, the infrared sensing consistency detection results of the two infrared sensing modules are confirmed to be unqualified, and unqualified prompts and the standard deviation detected at the time are displayed through the display; if the standard deviation s is smaller than or equal to the preset discrete error value K, confirming that the infrared sensing consistency detection results of the two infrared sensing modules are qualified, and displaying a qualified prompt and the standard deviation value of the detection.
In one embodiment, the controller obtains each duration of the infrared reflection module when the number of the infrared sensing modules is greater than 2 and obtains a first average value of all durations of the infrared reflection module when the infrared reflection module is located at a certain test position according to each duration of the infrared reflection module when the infrared reflection module is located at the certain test position;
the controller processes the first average value and each time length under the condition that the infrared reflection module is arranged at a certain test position based on a standard deviation formula, and a second standard deviation is obtained as the discrete degree.
Specifically, if the number of the infrared sensing modules arranged on the panel of the equipment is greater than 2, for example, a plurality of infrared sensing modules are arranged on the control panel of the range hood; the controller respectively obtains the duration of each infrared reflection signal when the infrared reflection module is arranged at a certain test position, and obtains a first average value of the duration of the infrared reflection signals received by the plurality of infrared induction modules when the infrared reflection module is arranged at the test position according to the duration of each infrared reflection signal at the test position; the controller processes the first average value and the time length of each infrared reflection signal of the infrared reflection module arranged at the test position based on a standard deviation formula, so that a second standard deviation, namely the discrete degree, is obtained. The controller can confirm the infrared sensing consistency detection results of the plurality of infrared sensing modules by comparing the discrete degree with the magnitude relation of the preset discrete error value.
In one embodiment, if the controller confirms that the infrared sensing consistency detection results are all qualified when the infrared reflection module is arranged at any test position, the controller obtains a second average value according to the first average value when the infrared reflection module is arranged at each test position;
the controller processes the second average value and each first average value based on a standard deviation formula to obtain a third standard deviation as a degree of dispersion.
Specifically, when the controller confirms that the infrared sensing consistency detection results of the infrared reflecting modules in any test position are qualified, in order to further ensure the accuracy of the infrared sensing consistency detection results of the plurality of infrared sensing modules, the controller may obtain a second average value according to a first average value of the infrared reflecting modules in each test position, and process the second average value and each first average value based on a standard deviation formula, thereby obtaining a third standard deviation, that is, a discrete degree. The controller can further confirm the infrared sensing consistency detection results of the plurality of infrared sensing modules by comparing the discrete degree with the magnitude relation of the preset discrete error value.
For example, if the number of test positions is three, the test positions are respectively 5 cm, 10 cm and 15 cm from the panel; when the infrared reflection module is arranged at a test position 5 cm away from the panel, the controller obtains the time length of the infrared reflection signals received by each infrared receiving unit to be T1 respectively 1 、T1 2 …T1 n Calculate a first average T1 of n durations avg ＝(T1 1 +T1 2 +……+T1 n ) And processing the first average value and the time length of each infrared reflection signal when the infrared reflection module is arranged at the test position 5 cm away from the panel based on the standard deviation formula to obtain standard deviation s1=sqrt of n time lengths (((T1) 1 -T1 avg )^2+(T1 2 -T1 avg )^2+……+(T1 n -T1 avg ) 2)/n), judging an infrared induction consistency detection result according to the magnitude relation between the standard deviation s1 and a preset discrete error value K, and if the infrared induction consistency detection result is unqualified, displaying the unqualified infrared induction consistency detection result through a displayLattice prompting, a distance value between the current test position and the panel and a standard deviation value of current detection. If the infrared sensing consistency detection result is qualified, entering the next stage.
The next stage may be that when the infrared reflection module is located at a test position 10 cm away from the panel, the controller obtains the duration of the infrared reflection signals received by each infrared receiving unit to be T2 respectively 1 、T2 2 …T2 n Calculate a first average T2 of n durations avg ＝(T2 1 +T2 2 +……+T2 n ) And processing the first average value and the time length of each infrared reflection signal when the infrared reflection module is arranged at the test position 10 cm away from the panel based on the standard deviation formula to obtain standard deviation s2=sqrt of n time lengths (((T2) 1 –T2 avg )^2+(T2 2 -T2 avg )^2+……+(T2 n -T2 avg ) And 2)/n), judging an infrared induction consistency detection result according to the relation between the standard deviation s2 and a preset discrete error value K, and if the infrared induction consistency detection result is unqualified, displaying an unqualified prompt, an unqualified stage, a distance value between the current test position and the panel and the standard deviation value detected at the time through a display. If the infrared sensing consistency detection result is qualified, entering the next stage.
The next stage may be that when the infrared reflection module is located at a test position 15 cm away from the panel, the controller obtains the duration of the infrared reflection signals received by each infrared receiving unit to be T3 respectively 1 、T3 2 …T3 n Calculate a first average T3 of n durations avg ＝(T3 1 +T3 2 +……+T3 n ) And processing the first average value and the time length of each infrared reflection signal when the infrared reflection module is arranged at the test position 15 cm away from the panel based on the standard deviation formula to obtain standard deviation s3=sqrt of n time lengths (((T3) 1 –T3 avg )^2+(T3 2 -T3 avg )^2+……+(T3 n -T3 avg ) 2)/n), judging an infrared induction consistency detection result according to the relation between the standard deviation s3 and a preset discrete error value K, and if the infrared induction consistency detection result is unqualified, passing through a displayAnd displaying the unqualified prompt, the unqualified stage, the distance value between the current test position and the panel and the standard deviation value of the current detection. If the infrared sensing consistency detection result is qualified, the next stage is entered.
The next stage is to: the controller calculates the average value of the first average value, namely the second average value T, under 3 different test positions avg ＝(T1 avg +T2 avg +T3 avg ) And/3, and processing the second average value and each first average value based on a standard deviation formula to obtain a third standard deviation s=sqrt (((T1) avg –T avg )^2+(T2 avg -T avg )^2+(T3 avg -T avg ) And 2)/3), finally confirming an infrared induction consistency detection result according to the magnitude relation between the standard deviation s and the preset discrete error value K, and displaying a disqualification prompt, a disqualification stage and the standard deviation value detected at the time through a display if the final infrared induction consistency detection result is disqualification. And if the infrared sensing consistency detection result is qualified, displaying a qualified prompt and a standard deviation value of the detection through a display.
The controller is used for controlling the infrared transmitting units in at least two infrared sensing modules arranged on the panel of the equipment to transmit infrared signals with preset time periods, the infrared receiving units in the infrared sensing modules receive infrared reflection signals reflected by the infrared reflecting modules and convert the infrared reflection signals into the electric signal transmitting value controller, so that the controller obtains the effective time periods of the electric signals and confirms the effective time periods of the electric signals as the time periods of the infrared reflection signals, and the controller can also select the time periods when the infrared reflecting modules are positioned at a certain test position or the time periods when the infrared reflecting modules are positioned at different test positions based on the standard deviation formula according to the number of the infrared sensing modules, so that corresponding discrete degrees are obtained, and the infrared sensing consistency detection results are determined based on the discrete degrees. Thereby ensuring the accuracy of the infrared induction consistency result. The quantitative infrared sensing consistency detection method provided by the application can reflect the tiny sensing difference of each infrared sensing module, has high test efficiency and high accuracy, is convenient for verifying and controlling the effect of feeding or assembling consistency, further reduces the risk of false touch of infrared gestures, improves the stability of products and ensures the quality of the products.
In one embodiment, as shown in fig. 4, an infrared sensing detection method is provided, which is applied to the above-mentioned infrared sensing detection system, and may include:
step 202, acquiring the duration of infrared reflection signals received by at least two infrared sensing modules arranged on a panel of equipment; the infrared reflection signal is a signal reflected by the infrared reflection module under the condition that the infrared induction module emits infrared signals with preset time length;
and 204, obtaining the discrete degree according to each duration, and determining an infrared induction consistency detection result based on the discrete degree.
In one embodiment, the step 202 of obtaining the duration of the infrared reflection signals received by at least two infrared sensing modules disposed on the panel of the device may include:
controlling an infrared emission unit of the infrared induction module to emit infrared signals with preset time length;
receiving an electric signal sent by an infrared receiving unit of the infrared sensing module, obtaining the effective duration of the electric signal,
the effective duration of the electrical signal is identified as the duration of the infrared reflected signal.
In one embodiment, the step 204 of obtaining the discrete degree according to each duration and determining the infrared sensing consistency detection result based on the discrete degree may include:
And processing each time length based on a standard deviation formula to obtain a standard deviation as a discrete degree, and determining an infrared induction consistency detection result according to the magnitude relation between a preset discrete error value and the discrete degree.
In one embodiment, the step of determining the infrared sensing consistency detection result according to the magnitude relation between the preset discrete error value and the discrete degree may include:
comparing the discrete degree with a preset discrete error value to obtain a comparison result;
under the condition that the discrete degree is larger than a preset discrete error value as a comparison result, determining that the infrared sensing consistency detection result is unqualified;
and under the condition that the discrete degree is smaller than or equal to the preset discrete error value as a comparison result, determining that the infrared induction consistency detection result is qualified.
In one embodiment, the step of obtaining the discrete degree according to each duration may include:
under the condition that the number of the infrared sensing modules is confirmed to be 2, acquiring each time length of the infrared reflecting modules under the condition of being arranged at different testing positions, and obtaining the difference value of the two time lengths of the infrared reflecting modules under the condition of being arranged at different testing positions and the average value of all the difference values according to each time length of the infrared reflecting modules under the condition of being arranged at different testing positions;
And processing the average value and each difference value based on a standard deviation formula to obtain a first standard deviation as a discrete degree.
In one embodiment, the step of obtaining the discrete degree according to each duration may further include:
under the condition that the number of the infrared sensing modules is larger than 2, acquiring each time length of the infrared reflecting modules arranged at a certain test position, and obtaining a first average value of all time lengths of the infrared reflecting modules arranged at the certain test position according to each time length of the infrared reflecting modules arranged at the certain test position;
and processing each time length under the condition that the first average value and the infrared reflection module are arranged at a certain test position based on a standard deviation formula to obtain a second standard deviation as a discrete degree.
In one embodiment, the step of obtaining the discrete degree according to each duration may further include:
if the infrared sensing consistency detection results are qualified when the infrared reflection module is arranged at any test position, obtaining a second average value according to the first average value when the infrared reflection module is arranged at each test position;
and processing the second average value and each first average value based on a standard deviation formula to obtain a third standard deviation as the discrete degree.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides an infrared induction detection device for realizing the above related infrared induction detection method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation of the embodiment of the infrared sensing device or devices provided below may be referred to the limitation of the infrared sensing method hereinabove, and will not be repeated herein.
In one embodiment, as shown in fig. 5, an infrared sensing detection device is provided, which is applied to the above-mentioned infrared sensing detection system, and may include:
a data acquisition module 110, configured to acquire durations of infrared reflection signals received by at least two infrared sensing modules disposed on a panel of the device; the infrared reflection signal is a signal reflected by the infrared reflection module under the condition that the infrared induction module emits infrared signals with preset time length;
the result determining module 120 is configured to obtain a degree of dispersion according to each duration, and determine an infrared induction consistency detection result based on the degree of dispersion.
In one embodiment, the data acquisition module 110 is further configured to control the infrared transmitting unit of the infrared sensing module to transmit an infrared signal for a preset duration; the method comprises the steps of receiving an electric signal sent by an infrared receiving unit of an infrared sensing module, obtaining effective duration of the electric signal, and confirming the effective duration of the electric signal as duration of an infrared reflected signal.
In one embodiment, the result determining module 120 is further configured to process each duration based on a standard deviation formula, obtain a standard deviation as a discrete degree, and determine an infrared sensing consistency detection result according to a magnitude relation between a preset discrete error value and the discrete degree.
In one embodiment, the result determining module 120 is further configured to compare the discrete degree with a preset discrete error value to obtain a comparison result; under the condition that the discrete degree is larger than a preset discrete error value as a comparison result, determining that the infrared sensing consistency detection result is unqualified; and under the condition that the discrete degree is smaller than or equal to the preset discrete error value as a comparison result, determining that the infrared induction consistency detection result is qualified.
In one embodiment, the result determining module 120 is further configured to obtain, when the number of infrared sensing modules is determined to be 2, each duration of time when the infrared reflecting module is located at a different test position, and obtain, according to each duration of time when the infrared reflecting module is located at a different test position, a difference value between two durations of time when the infrared reflecting module is located at a different test position, and an average value of all the difference values; and processing the average value and each difference value based on a standard deviation formula to obtain a first standard deviation as a discrete degree.
In one embodiment, the result determining module 120 is further configured to obtain, when it is determined that the number of infrared sensing modules is greater than 2, each duration of time when the infrared reflecting module is located at a certain test position, and obtain, according to each duration of time when the infrared reflecting module is located at a certain test position, a first average value of all durations of time when the infrared reflecting module is located at a certain test position; and processing each time length under the condition that the first average value and the infrared reflection module are arranged at a certain test position based on a standard deviation formula to obtain a second standard deviation as a discrete degree.
In one embodiment, the result determining module 120 is further configured to, if it is determined that the infrared sensing consistency detection results of the infrared reflecting modules in the case of being set at any test position are all qualified, obtain a second average value according to the first average value of the infrared reflecting modules in the case of being set at each test position; and processing the second average value and each first average value based on a standard deviation formula to obtain a third standard deviation as the discrete degree.
The above-described respective modules in the infrared sensing device may be implemented in whole or in part by software, hardware, or a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method embodiments described above.
In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.
In the description of the present specification, reference to the terms "some embodiments," "other embodiments," "desired embodiments," and 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 descriptions of the above terms do not necessarily refer to the same embodiment or example.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (9)
1. An infrared sensing detection system, comprising:
an infrared reflection module;
at least two infrared sensing modules; each infrared sensing module is used for being arranged on a panel of the equipment;
a controller; the controller is respectively connected with each infrared sensing module;
each infrared induction module is used for emitting periodic infrared signals with preset time length and receiving infrared reflection signals reflected by the infrared reflection modules; the controller is used for acquiring the duration of each infrared reflection signal, obtaining the discrete degree according to each duration, and determining an infrared induction consistency detection result based on the discrete degree; the controller processes each time length based on a standard deviation formula to obtain a standard deviation as the discrete degree, and determines the infrared induction consistency detection result according to the magnitude relation between a preset discrete error value and the discrete degree.
2. The infrared sensing detection system of claim 1, wherein the infrared sensing module comprises an infrared emission unit and an infrared receiving unit; the infrared emission unit and the infrared receiving unit are connected with the controller;
The controller is used for controlling the infrared emission unit to emit infrared signals with the preset duration;
the infrared receiving unit receives the infrared reflection signal and converts the infrared reflection signal into an electric signal; the infrared receiving unit sends the electric signal to the controller;
the controller receives the electric signal and obtains the effective duration of the electric signal; the controller confirms the effective duration of the electrical signal as the duration of the infrared reflected signal.
3. The infrared sensing detection system of claim 1, wherein,
the controller compares the discrete degree with the preset discrete error value to obtain a comparison result;
when the comparison result is that the discrete degree is larger than the preset discrete error value, the controller determines that the infrared sensing consistency detection result is unqualified;
and under the condition that the discrete degree is smaller than or equal to the preset discrete error value as the comparison result, the controller determines that the infrared sensing consistency detection result is qualified.
4. The infrared sensing detection system of claim 1, wherein each of the infrared sensing modules is disposed on a side of the panel to form a sensing region on the panel;
The infrared reflection module is arranged at the test position; the number of the test positions is a plurality of; the test position is determined based on the sensing region; the infrared reflection surface of the infrared reflection module is opposite to one side surface of the panel, and the projection of the infrared reflection module on the panel covers the sensing area.
5. The infrared induction detection system according to claim 4, comprising:
the controller obtains the time lengths of the infrared reflection modules in the case of confirming that the number of the infrared induction modules is 2 and obtains the difference value of the two time lengths of the infrared reflection modules in the case of confirming that the infrared reflection modules are arranged in different test positions and the average value of all the difference values according to the time lengths of the infrared reflection modules in the case of confirming that the infrared reflection modules are arranged in different test positions;
the controller processes the average value and each of the difference values based on the standard deviation formula to obtain a first standard deviation as the degree of dispersion.
6. The infrared sensing detection system according to claim 4, wherein the controller obtains each of the time periods when the infrared reflection module is located at a certain one of the test positions, and obtains a first average value of all the time periods when the infrared reflection module is located at a certain one of the test positions, based on each of the time periods when the infrared reflection module is located at a certain one of the test positions, when it is confirmed that the number of the infrared sensing modules is greater than 2;
And the controller processes each time length under the condition that the first average value and the infrared reflection module are arranged at a certain test position based on the standard deviation formula, and obtains a second standard deviation as the discrete degree.
7. The infrared sensing detection system according to claim 6, wherein if the controller confirms that the infrared sensing consistency detection results of the infrared reflection modules in the case of being arranged at any one of the test positions are all qualified, the controller obtains a second average value according to a first average value of the infrared reflection modules in the case of being arranged at each of the test positions;
the controller processes the second average value and each first average value based on the standard deviation formula to obtain a third standard deviation as the discrete degree.
8. The infrared sensing detection system of any one of claims 1 to 7, further comprising a display coupled to the controller;
the display is used for displaying the infrared induction consistency detection result.
9. An infrared induction detection method, characterized by being applied to the infrared induction detection system according to any one of claims 1 to 8, comprising:
Acquiring the duration of infrared reflection signals received by at least two infrared sensing modules arranged on a panel of the equipment; the infrared reflection signal is a signal reflected by the infrared reflection module under the condition that the infrared induction module emits infrared signals with preset periodicity and set time length;
obtaining discrete degrees according to the time periods, and determining an infrared induction consistency detection result based on the discrete degrees, wherein the time periods are processed based on a standard deviation formula to obtain standard deviations as the discrete degrees, and the infrared induction consistency detection result is determined according to the magnitude relation between a preset discrete error value and the discrete degrees.
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