CN111458105A - Method, device and equipment for testing optical module - Google Patents
Method, device and equipment for testing optical module Download PDFInfo
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- CN111458105A CN111458105A CN202010317295.0A CN202010317295A CN111458105A CN 111458105 A CN111458105 A CN 111458105A CN 202010317295 A CN202010317295 A CN 202010317295A CN 111458105 A CN111458105 A CN 111458105A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 123
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000006698 induction Effects 0.000 claims description 12
- 238000011109 contamination Methods 0.000 description 5
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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Abstract
The application relates to a method, a device and equipment for testing an optical module. The method comprises the following steps: acquiring data information of a test board and data information of test firmware; acquiring the corresponding relation between the test board and the test firmware according to the data information of the test board and the data information of the test firmware; controlling the test firmware to be burned into the corresponding test board according to the corresponding relation; and controlling the test board to test the optical module to be tested connected with the test board to obtain a test result. According to the method, the host can directly burn the corresponding test firmware into the test board according to the corresponding relation between the test board and the test firmware, and then test the optical module to be tested connected with the test board to obtain a test result, operation of an operator is not needed, the problem of misoperation is avoided, and the test efficiency is effectively improved.
Description
Technical Field
The present disclosure relates to the field of optical module technologies, and in particular, to a method, an apparatus, and a device for testing an optical module.
Background
With the development of the photographing technology, a 3D photographing technology has appeared, the 3D photographing technology can obtain a three-dimensional image of an object by photographing the object by using an optical module, and an existing optical module, such as a TOF (Time of flight) module or a depth camera module, can obtain a depth map of the object during photographing.
However, before the current optical module is produced and delivered from the factory, a series of tests are required to be performed firstly to ensure the performance of the optical module, and the problem of poor shooting effect and the like in the use process is avoided.
Disclosure of Invention
In view of the above, it is desirable to provide a method, an apparatus and a device for testing an optical module, which can improve the testing efficiency, in order to solve the problem of low testing efficiency of the optical module.
A method for testing an optical module. The method comprises the following steps: acquiring data information of a test board and data information of test firmware; acquiring the corresponding relation between the test board and the test firmware according to the data information of the test board and the data information of the test firmware; controlling the test firmware to be burned into the corresponding test board according to the corresponding relation; and controlling the test board to test the optical module to be tested connected with the test board to obtain a test result.
According to the method, the host can directly burn the corresponding test firmware into the test board according to the corresponding relation between the test board and the test firmware, and then test the optical module to be tested connected with the test board to obtain a test result, operation of an operator is not needed, the problem of misoperation is avoided, and the test efficiency is effectively improved.
Preferably, before acquiring the data information of the test board and the data information of the test firmware, the method comprises the following steps:
acquiring induction information in the test station, and judging whether the optical module to be tested is in the test station according to the induction information; if yes, the step of obtaining the data information of the test board and the data information of the test firmware is started. Whether the optical module to be tested is in the testing station is judged through the induction information, so that the subsequent testing steps are prevented from being still executed when the optical module to be tested is not in the testing station, and the resource waste is reduced.
Preferably, after acquiring the data information of the test board and the data information of the test firmware, before acquiring the corresponding relationship between the test board and the test firmware according to the data information of the test board and the data information of the test firmware, the method includes the steps of:
and acquiring a test identifier of the optical module to be tested, and controlling the optical module to be tested to be connected with the corresponding test board according to the test identifier. The optical module to be tested is controlled to be connected with the corresponding test board through the test identification, so that the optical module to be tested is prevented from being confused, and the problem that the test result is disordered due to the connection of the optical module to be tested and other test boards which do not correspond is avoided.
Preferably, after acquiring the data information of the test board and the data information of the test firmware, before acquiring the corresponding relationship between the test board and the test firmware according to the data information of the test board and the data information of the test firmware, the method includes:
judging whether the quantity of the test board and the quantity of the test firmware are two or more according to the data information of the test board and the data information of the test firmware; if yes, acquiring the corresponding relation between the test board and the test firmware according to the data information of the test board and the data information of the test firmware; if not, the step of controlling the test board to test the optical module to be tested connected with the test board to obtain a test result is carried out. The number of the current test lines can be determined by judging the number of the test boards and the test firmware, so that whether the firmware needs to be burned or not is determined according to the test number of the current test lines, unnecessary operation processes are reduced, and the complexity of a processing process is reduced.
Preferably, controlling the test firmware to be burned into the corresponding test board according to the corresponding relationship includes:
and sending a control signal to the corresponding upper computer according to the corresponding relation so as to control the corresponding upper computer to burn the test firmware into the corresponding test board. The burning of the test firmware is completed by controlling the corresponding upper computer, so that the host computer can conveniently control the burning process of the test firmware, the automatic control of the burning process of the test firmware is realized, and the test firmware can be accurately burned into the corresponding test board.
Preferably, the step of controlling the test board to test the optical module to be tested connected to the test board to obtain a test result includes:
and analyzing the test result to obtain an analysis result, and outputting the analysis result to a display interface for displaying. Through analyzing the test result and outputting to the display interface and showing, can make things convenient for the audio-visual problem that knows the optical module and exist of testing personnel, conveniently make statistics of and later maintenance.
A test apparatus for an optical module, the test apparatus comprising:
the information acquisition module is used for acquiring data information of the test board and data information of the test firmware;
the relation acquisition module is used for acquiring the corresponding relation between the test board and the test firmware according to the data information of the test board and the data information of the test firmware;
the burning control module is used for controlling the test firmware to be burned into the corresponding test board according to the corresponding relation;
and the test control module is used for controlling the test board to test the optical module to be tested connected with the test board to obtain a test result.
According to the testing device, the host can directly burn the corresponding testing firmware into the testing board according to the corresponding relation between the testing board and the testing firmware, then the optical module to be tested connected with the testing board is tested, a testing result is obtained, an operator does not need to operate, the problem of misoperation is avoided, and the testing efficiency is effectively improved.
The test equipment of an optical module comprises a test device and a control device; the testing device is used for connecting the optical module to be tested, and the control device is used for controlling the testing device to test the optical module to be tested according to the optical module testing method.
Preferably, the test device includes a test firmware and a test board, the control device is used for controlling the test firmware to be burned into the test board, and the test board is used for being connected with the optical module to be tested. Passing test firmware
Preferably, the test device comprises a sensing means, which is connected to the control means. The induction information is acquired through the induction device and is sent to the control device, so that the control device can judge whether the optical module to be tested is in the test station or not, the subsequent test steps are prevented from being still executed when the optical module to be tested is not in the test station, and the resource waste is reduced.
Drawings
FIG. 1 is a flow chart illustrating a method for testing an optical module according to an embodiment;
FIG. 2 is a flow chart illustrating a method for testing an optical module according to another embodiment;
FIG. 3 is a flow chart illustrating a method for testing an optical module according to another embodiment;
FIG. 4 is a block diagram of a system of test equipment for an optical module according to one embodiment;
FIG. 5 is a block diagram of a system of testing apparatus for an optical module according to another embodiment;
FIG. 6 is a schematic diagram illustrating a testing process of an optical module according to another embodiment;
FIG. 7 is a block diagram of a testing system for an optical module according to one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in FIG. 1, a method of testing an optical module is provided. The method comprises the following steps: step S200, data information of the test board and data information of the test firmware are obtained. Specifically, in order to improve the testing efficiency, a plurality of paths of testing circuits are generally arranged when a large number of optical modules are tested, and a plurality of optical modules are tested at the same time, that is, each optical module occupies one path of testing circuit when testing, the testing circuits at least comprise a testing board, an optical module to be tested and a control device (such as a computer host) for controlling the testing board, the testing board is used as a testing carrier, corresponding testing software or testing algorithm needs to be burned in the testing board, and corresponding testing is performed on the optical module in one path of testing circuit by executing the testing software or testing algorithm. It can be understood that each optical module is independently tested, that is, each optical module corresponds to an independent test line, when testing, different test software or test algorithms need to be identified and distinguished, and the test software or test algorithms are loaded in the test firmware, that is, the test software or test algorithms loaded in the test firmware need to be identified through data information of the test firmware, and further, in order to ensure that the test firmware can be accurately burned into the corresponding test board, the test boards in each test line need to be identified through the data information of the test boards. It should be noted that, in an embodiment, the data information of the test board includes arabic numbers, and the data information of different test boards includes different arabic numbers, and similarly, the data information of the test firmware also includes arabic numbers, and the like, which are not illustrated herein.
Step S400, acquiring the corresponding relation between the test board and the test firmware according to the data information of the test board and the data information of the test firmware. Specifically, the optical modules to be tested in each testing circuit have different testing items, that is, the test firmware needs to be burned into the corresponding test board to enable the test board to execute the corresponding test item through the test firmware, taking four testing circuits as an example to test the optical module to be tested, the first testing circuit includes test board No. 1, the second circuit of test circuit includes a No. 2 test board for executing No. 2 test item to test the optical module, and analogizing the test lines of other paths, wherein the test firmware containing the No. 1 test item needs to correspond to the No. 1 test board according to the corresponding relation, namely the corresponding relation between the No. 1 test board and the test firmware containing the No. 1 test item is established.
Step S500, controlling the test firmware to be burned into the corresponding test board according to the corresponding relationship. Specifically, the control device (e.g., a computer or the like) can identify and distinguish the test firmware according to the corresponding relationship to burn the test firmware into the corresponding test board.
Step S600, the test board is controlled to test the optical module to be tested connected with the test board to obtain a test result. Specifically, the control device (e.g., a host computer) controls the test board to test the optical module to be tested, where the optical module to be tested may be a TOF (Time Of Flight) module, and the test result may be different according to different test software or test algorithms (i.e., burned test firmware), for example, when the optical module to be tested is tested by using precision test software, the precision measurement result Of the optical module to be tested is obtained. For example, the test board performs a contamination test on the lens of the optical module to be tested through the contamination test software to obtain a test result including a plurality of images, and after the test result is sent to the control device (e.g., the computer host), the computer host analyzes the images to determine the position, amount, and the like of the contamination in the images, so as to determine whether the lens of the optical module to be tested has contamination and the position where the contamination is located.
According to the method, the control host can directly burn the corresponding test firmware into the test board according to the corresponding relation between the test board and the test firmware, and then test the optical module to be tested connected with the test board to obtain a test result, operation of an operator is not needed, the problem of misoperation is avoided, and the test efficiency is effectively improved.
In an embodiment, as shown in fig. 2, step S200 further includes step S100, obtaining sensing information in the testing station, and determining whether there is an optical module to be tested in the testing station according to the sensing information; if yes, the step S200 is entered, if not, the induction information in the test station is continuously obtained, and whether the optical module to be tested is in the test station is judged according to the induction information. Specifically, when multiple paths of test circuits are used for testing multiple optical modules to be tested simultaneously, each test circuit has a corresponding test station, and the test circuit corresponding to the test station can execute subsequent test steps only when the optical module to be tested exists in the test station. It is understood that the sensing information may be obtained by an infrared sensor, and the infrared sensor sends the sensing information to the control device for judgment. Whether the optical module to be tested is in the testing station is judged through the induction information, so that the subsequent testing steps are prevented from being still executed when the optical module to be tested is not in the testing station, and the resource waste is reduced.
In another embodiment, as shown in fig. 2, after the step S200 and before the step S400, the method further includes a step S300 of obtaining a test identifier of the optical module to be tested, and controlling the optical module to be tested to connect with the corresponding test board according to the test identifier. Specifically, the test identifier of the optical module to be tested includes a factory number or a test serial number, and the control device can identify which test line the optical module to be tested corresponds to by acquiring the test identifier, so that the optical module to be tested is connected with the test board in the corresponding test line. The optical module to be tested is controlled to be connected with the corresponding test board through the test identification, so that the optical module to be tested is prevented from being confused, and the problem that the test result is disordered due to the connection of the optical module to be tested and other test boards which do not correspond is avoided.
In one embodiment, as shown in fig. 3, after step S200 and before step S400, the method further includes step S310: judging whether the quantity of the test board and the quantity of the test firmware are two or more according to the data information of the test board and the data information of the test firmware; if yes, go to step S400; if not, the process proceeds to step S600. Specifically, under the condition that the efficiency does not need to be improved, the optical module to be tested can be tested only by using the single-path testing circuit through the embodiment, and it can be understood that one optical module to be tested can be tested by using the single-path testing circuit at one time. When the data information of the test board or the test firmware acquired by the control device is less than two, it is not necessary to acquire the corresponding relationship between the test board and the test firmware and burn the test firmware into the test board, and the optical module to be tested is directly tested through the test board. The number of the current test lines can be determined by judging the number of the test boards and the test firmware, so that whether the firmware needs to be burned or not is determined according to the test number of the current test lines, unnecessary operation processes are reduced, and the complexity of a processing process is reduced.
In one embodiment, step S500 includes step S501: and sending a control signal to the corresponding upper computer according to the corresponding relation so as to control the corresponding upper computer to burn the test firmware into the corresponding test board. Specifically, each test line corresponds to at least one upper computer, the upper computers are connected to the test boards in the test lines, it should be noted that each upper computer in all the test lines is connected to the same control device (for example, a computer host), and when the corresponding test firmware needs to be burned into the corresponding test board, the computer host sends a control signal to the corresponding upper computer to complete the burning of the test firmware. The burning of the test firmware is completed by controlling the corresponding upper computer, so that the host computer can conveniently control the burning process of the test firmware, the automatic control of the burning process of the test firmware is realized, and the test firmware can be accurately burned into the corresponding test board.
In one embodiment, as shown in fig. 2, after step S600, step S700 is further included, where the test result is analyzed to obtain an analysis result, and the analysis result is output to a display interface for displaying. Specifically, after the test board tests the optical module to be tested, a corresponding test result can be obtained, the test board uploads the test result to the control device (such as a host computer), the test result is analyzed by the host computer, it can be understood that when different testing software or testing algorithms (loaded in the testing firmware) are used to test the optical module to be tested, the obtained testing results are different, the corresponding analysis results are also different, taking the dirty test as an example of the test software, the test board performs the dirty test on the lens of the optical module to be tested, controls the optical module to be tested to perform image shooting, obtains a plurality of groups of test images as the test result, if the lens of the optical module to be tested is dirty, the computer host can analyze the test image through a dirt point detection algorithm, so as to analyze and obtain the position of dirt in the lens of the optical module to be tested. Through analyzing the test result and outputting to the display interface and showing, can make things convenient for the audio-visual problem that knows the optical module and exist of testing personnel, conveniently make statistics of and later maintenance.
In one embodiment, as shown in fig. 4, there is provided a test apparatus for an optical module, the test apparatus including: the information obtaining module 200 is used for obtaining data information of the test board and data information of the test firmware. The relationship obtaining module 400 is configured to obtain a corresponding relationship between the test board and the test firmware according to the data information of the test board and the data information of the test firmware. The burning control module 500 is used for controlling the test firmware to be burned into the corresponding test board according to the corresponding relationship. And the test control module 600 is used for controlling the test board to test the optical module to be tested connected with the test board to obtain a test result.
According to the testing device, the host can directly burn the corresponding testing firmware into the testing board according to the corresponding relation between the testing board and the testing firmware, then the optical module to be tested connected with the testing board is tested, a testing result is obtained, an operator does not need to operate, the problem of misoperation is avoided, and the testing efficiency is effectively improved.
In an embodiment, as shown in fig. 5, the testing apparatus further includes a sensing module 100, configured to obtain sensing information in a testing station before the information obtaining module 200 obtains data information of the testing board and data information of the testing firmware, and determine whether there is an optical module to be tested in the testing station according to the sensing information; if yes, go to the information obtaining module 200 to obtain the data information of the test board and the data information of the test firmware.
In an embodiment, as shown in fig. 5, the testing apparatus further includes a connection control module 300, configured to, after the information obtaining module 200 obtains the data information of the testing board and the data information of the testing firmware, before the relationship obtaining module 400 obtains the corresponding relationship between the testing board and the testing firmware according to the data information of the testing board and the data information of the testing firmware, obtain a testing identifier of the optical module to be tested, and control the optical module to be tested to be connected to the corresponding testing board according to the testing identifier.
In one embodiment, the testing apparatus further includes a quantity detection module, configured to, after the information obtaining module 200 obtains the data information of the testing board and the data information of the testing firmware, before the relationship obtaining module 400 obtains the corresponding relationship between the testing board and the testing firmware according to the data information of the testing board and the data information of the testing firmware, determine whether the quantity of the testing board and the quantity of the testing firmware are two or more according to the data information of the testing board and the data information of the testing firmware; if yes, go to the relation obtaining module 400 to execute the corresponding relation between the test board and the test firmware according to the data information of the test board and the data information of the test firmware; if not, the test control module 600 is switched to execute the control test board to test the optical module to be tested connected with the test board, so as to obtain the test result.
In one embodiment, the burning control module 500 includes an upper computer control module for sending a control signal to the corresponding upper computer according to the corresponding relationship to control the corresponding upper computer to burn the test firmware into the corresponding test board.
In an embodiment, as shown in fig. 5, the testing apparatus further includes an analysis display module 700, configured to, after the test control module 600 controls the test board to test the optical module to be tested connected to the test board, analyze the test result to obtain an analysis result, and output the analysis result to the display interface for displaying.
For the specific definition of the testing apparatus for the optical module, reference may be made to the above definition of the testing method for the optical module, which is not described herein again. All or part of each module in the testing device of the optical module can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, there is provided a test apparatus for an optical module, the test apparatus comprising a test device and a control device; the testing device is used for connecting the optical module to be tested, and the control device is used for controlling the testing device to test the optical module to be tested according to the method.
In one embodiment, the testing device includes a testing firmware and a testing board, the control device is used for controlling the testing firmware to be burned into the testing board, and the testing board is used for being connected with the optical module to be tested.
In one embodiment, the test apparatus comprises a sensing device, which is connected to the control device. The sensing device is used for sensing the optical module to be tested in the testing station, for example, the sensing device can be an infrared light sensor, sensing information is obtained through the infrared light sensor and is sent to the control device (for example, a computer host), and the computer host analyzes and judges the sensing information to identify whether the optical module to be tested is in the testing station or not, so that whether the method is executed to control the testing device to test the optical module to be tested is deduced. The induction information is acquired through the induction device and is sent to the control device, so that the control device can judge whether the optical module to be tested is in the test station or not, the subsequent test steps are prevented from being still executed when the optical module to be tested is not in the test station, and the resource waste is reduced.
In one embodiment, as shown in fig. 6, a test process of the optical module is provided, which includes an accurate test stage, a test board firmware burning stage and a test stage, wherein the test preparation stage mainly performs an early preparation operation including at least data information of a certain test board and data information of a test firmware, the test board firmware burning stage burns the test firmware into the corresponding test board, and the test stage includes a process of testing the optical module to be tested and analyzing a test result. In an embodiment, as shown in fig. 7, a test system of an optical module is provided, in fig. 7, four test lines are taken as an example, each test line includes a corresponding station (i.e., the above test station), a test board, firmware (i.e., the above test firmware), and an upper computer, the station 1 corresponds to the test board 1 to burn the firmware 1, the station 2 corresponds to the test board 2 to burn the firmware 2, the station 3 corresponds to the test board 3 to burn the firmware 3, the station 4 corresponds to the test board 4 to burn the firmware 4, each firmware and the upper computer correspond to the station 1, i.e., the firmware 1 corresponds to the firmware 2 of the upper computer, and so on.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for testing an optical module, comprising the steps of:
s200, acquiring data information of the test board and data information of the test firmware;
s400, acquiring the corresponding relation between the test board and the test firmware according to the data information of the test board and the data information of the test firmware;
s500, burning the test firmware into the corresponding test board according to the corresponding relation;
s600, controlling the test board to test the optical module to be tested connected with the test board to obtain a test result.
2. The method according to claim 1, wherein the step of obtaining the data information of the test board and the data information of the test firmware comprises the step of S100:
acquiring induction information in a test station, and judging whether an optical module to be tested is in the test station according to the induction information;
if yes, the step of obtaining the data information of the test board and the data information of the test firmware is started.
3. The method according to claim 2, wherein after acquiring the data information of the test board and the data information of the test firmware, before acquiring the corresponding relationship between the test board and the test firmware according to the data information of the test board and the data information of the test firmware, the method comprises step S300:
and acquiring a test identifier of the optical module to be tested, and controlling the optical module to be tested to be connected with the corresponding test board according to the test identifier.
4. A method according to any one of claims 1-3, wherein after acquiring the data information of the test board and the data information of the test firmware, before acquiring the corresponding relationship between the test board and the test firmware according to the data information of the test board and the data information of the test firmware, the method comprises the steps of:
judging whether the number of the test boards and the number of the test firmware are two or more according to the data information of the test boards and the data information of the test firmware;
if so, acquiring the corresponding relation between the test board and the test firmware according to the data information of the test board and the data information of the test firmware;
and if not, controlling the test board to test the optical module to be tested connected with the test board to obtain a test result.
5. The method according to any one of claims 1 to 3, wherein the controlling the test firmware to be burned into the corresponding test board according to the corresponding relationship comprises the step S501:
and sending a control signal to the corresponding upper computer according to the corresponding relation so as to control the corresponding upper computer to burn the test firmware into the corresponding test board.
6. The method according to any one of claims 1 to 3, wherein the controlling the test board to test the optical module under test connected to the test board after obtaining the test result comprises step S700:
and analyzing the test result to obtain an analysis result, and outputting the analysis result to a display interface for displaying.
7. A test apparatus for an optical module, the test apparatus comprising:
the information acquisition module is used for acquiring data information of the test board and data information of the test firmware;
the relation acquisition module is used for acquiring the corresponding relation between the test board and the test firmware according to the data information of the test board and the data information of the test firmware;
the burning control module is used for controlling the test firmware to be burnt into the corresponding test board according to the corresponding relation;
and the test control module is used for controlling the test board to test the optical module to be tested connected with the test board to obtain a test result.
8. The test equipment of the optical module is characterized by comprising a test device and a control device; the testing device is used for connecting an optical module to be tested, and the control device is used for controlling the testing device to test the optical module to be tested according to the method of any one of the claims 1 to 6.
9. The apparatus according to claim 8, wherein the testing device comprises a testing firmware and a testing board, the control device is configured to control the testing firmware to be burned into the testing board, and the testing board is configured to be connected to the optical module under test.
10. Test device according to claim 8 or 9, characterized in that the test device comprises a sensing means, which is connected with the control means.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112099051A (en) * | 2020-08-13 | 2020-12-18 | 欧菲微电子技术有限公司 | TOF ranging method, TOF sensing module, electronic equipment and storage medium |
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