CN113079370B - Camera module testing system and method - Google Patents
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- CN113079370B CN113079370B CN202110347238.1A CN202110347238A CN113079370B CN 113079370 B CN113079370 B CN 113079370B CN 202110347238 A CN202110347238 A CN 202110347238A CN 113079370 B CN113079370 B CN 113079370B
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Abstract
The invention relates to the technical field of camera module testing, and particularly discloses a camera module testing system and a camera module testing method, wherein the system comprises a plurality of testing stations and a plurality of testing main boards for carrying camera modules, the testing stations are provided with data connectors, and the testing main boards are provided with data interfaces for connecting the data connectors; the device also comprises an interface reading module, an interface judging module, a testing module and an alarming module which are arranged corresponding to the testing station; the interface reading module is used for reading data interface information accessed to the test station; the interface judging module is used for judging whether the current data interface is bound with the current testing module according to the data interface information and preset interface binding information to generate a judging result; the test module is used for starting a test item when the judgment result is that the test item is bound; and the alarm module is used for generating alarm information when the judgment result is that the binding is not available. By adopting the technical scheme of the invention, the camera module can be prevented from being misplaced in detection.
Description
Technical Field
The invention relates to the technical field of camera testing, in particular to a camera module testing system and method.
Background
The camera module is widely applied to the fields of vehicle-mounted equipment, intelligent household appliances, intelligent mobile phones, monitoring devices, computers and the like. After the camera module is assembled, the camera module needs to be tested for items such as OS (product internal line on-off test), auto focus far (product definition test), POG (product imaging dark cluster test), POD (product imaging dark spot and bright spot test), AWB (product optical correction), MTF (modulation transfer function) and the like.
During testing, the camera module is required to be fixed on the test circuit board, and then the test circuit board is placed on the test station. In order to improve the efficiency, the test mode of multistation is often adopted at present, and test equipment predetermines a plurality of test stations promptly, and a plurality of test stations carry out a plurality of camera modules simultaneously and test.
In order to ensure that the test data correspond to the camera modules one to one, the camera modules need to correspond to the test stations, however, errors that the camera modules do not correspond to the test stations easily occur in a traditional manual placement mode, for example, in a double-station test, the station 1 performs an AWB test on the camera module A, and the station 2 performs an AWB test on the camera module B; after the test, recording the corresponding adjustment parameters into the camera modules according to the condition test of each camera module; if the worker wrongly places the A camera module on the No. 2 station and the B camera module on the No. 1 station during testing, the adjustment parameters corresponding to the A camera module can be burnt into the B camera module by subsequent burning, errors are caused, and the product quality is influenced.
Therefore, a system and a method for testing a camera module capable of preventing the camera module from being misplaced during detection are needed.
Disclosure of Invention
The invention provides a camera module testing system and method, which can avoid dislocation of a camera module in detection.
In order to solve the technical problem, the present application provides the following technical solutions:
a camera module testing system comprises a plurality of testing stations and a plurality of testing main boards for carrying camera modules, wherein data connectors are arranged on the testing stations, and data interfaces for connecting the data connectors are arranged on the testing main boards;
the device also comprises an interface reading module, an interface judging module, a testing module and an alarming module which are arranged corresponding to the testing station;
the interface reading module is used for reading data interface information accessed to the test station;
the interface judging module is used for judging whether the current data interface is bound with the current testing module according to the data interface information and preset interface binding information and generating a judging result;
the test module is used for starting a test item when the judgment result is that the test item is bound;
and the alarm module is used for generating alarm information when the judgment result is that the binding is not available.
The basic scheme principle and the beneficial effects are as follows:
in this scheme, when carrying out the test of camera module, be fixed in the test mainboard with the camera module earlier on, then place the test mainboard on the test station, make the data interface of test mainboard and the data connection on the test station be connected. When the test is started, the interface judgment module judges whether the current data interface is bound with the current test module according to the data interface information and the preset interface binding information, if a worker misplaces the position of the test mainboard, the current data interface is not bound with the current test module, alarm information is generated, the effect of reminding the worker can be played, and the condition that the camera module is misplaced in the detection can be quickly found.
Further, the interface judgment module is used for judging whether the current data interface is bound with other test modules when judging that the current data interface is not bound with the current test module, and generating a binding prompt if the current data interface is not bound with other test modules; the interface judgment module is also used for binding the current data interface with the current test module after receiving the information of the binding confirmation, and adding the current data interface and the current test module into the preset interface binding information.
When the test mainboard is used for the first time, the binding is performed quickly.
Further, the test items comprise a blackboard test and/or a whiteboard test; and the test items of the corresponding test modules of the adjacent test stations are not completely the same.
And the adjacent test stations are convenient to distinguish.
Further, when the blackboard is tested, the test module is further used for obtaining a detection value, judging whether the detection value is smaller than a preset card control value, and if the detection value is smaller than the preset card control value, generating blackboard test passing information; and during whiteboard testing, the testing module is also used for acquiring a detection value, judging whether the detection value is greater than a preset card control value, and if so, generating whiteboard testing passing information.
Because the machine test is compared in the human eye test, whether the machine can't independently judge the product qualified, so need set up and predetermine the card accuse value, the machine of being convenient for distinguishes fast.
Further, the device also comprises a storage module used for storing the preset interface binding information.
A camera module testing method comprises the following steps:
s1, connecting a data interface of a test mainboard carrying a camera module with a data connector of a test station;
s2, reading data interface information accessed to a test station;
s3, judging whether the current data interface is bound with the current test module according to the data interface information and preset interface binding information, and if so, jumping to S4; if not, jumping to S5;
s4, starting a test project;
and S5, generating alarm information.
In this scheme, whether current data interface and current test module bind according to data interface information and the information of binding of predetermined interface, whether difference that can be quick goes out the camera module and misplaces, can in time discover when the problem appears, can reduce the step that the workman checked repeatedly, improves production efficiency.
Further, in S3, when it is determined that the data interface is not bound, the data interface is further configured to determine whether the current data interface is bound to another test module, and if not, a binding prompt is generated; and after the binding prompt is generated, judging whether the information of binding confirmation is received, if so, binding the current data interface with the current test module, and jumping to S4.
The workman can bind convenient operation to the test mainboard of using for the first time fast.
Further, in S4, the test items include a blackboard test and/or a whiteboard test; and the test items of the corresponding test modules of the adjacent test stations are not completely the same.
The non-identical test items also help to distinguish between adjacent test stations.
Further, in S4, during the blackboard test, a detection value is obtained, whether the detection value is smaller than a preset card control value is judged, and if the detection value is smaller than the preset card control value, blackboard test passing information is generated; and when the whiteboard is tested, obtaining a detection value, judging whether the detection value is greater than a preset clamping value, and if so, generating whiteboard test passing information.
Because the machine test is compared with the human eye test, the machine can't independently judge whether qualified product, so need set up and preset the card accuse value, the machine of being convenient for distinguishes fast.
Drawings
Fig. 1 is a logic block diagram of a camera module testing system according to an embodiment.
Detailed Description
The following is further detailed by way of specific embodiments:
example one
As shown in fig. 1, the camera module testing system of this embodiment includes a plurality of test motherboards, a test station, and an interface reading module, an interface determining module, a test module, a storage module, and an alarm module corresponding to the test station.
In this embodiment, the number of the test stations is two, and the test stations are respectively marked as test station No. 1 and test station No. 2.
Be provided with data connector on the test station, the test mainboard is used for carrying on the camera module, is provided with the data interface who is used for with data connector connection on the test mainboard, realizes the data connection of test mainboard and test station. In this embodiment, the number of the test motherboards is two, and the test motherboards are respectively marked as test motherboard No. 1 and test motherboard No. 2. The data interface of the No. 1 test mainboard is marked as a data interface A, and the interface of the No. 2 test mainboard is marked as a data interface B.
In the embodiment, the test module corresponding to the test station No. 1 is denoted as a test module 1, and the test module corresponding to the test station No. 2 is denoted as a test module 2.
The storage module is used for storing preset interface binding information. For example, data interface a is bound to test module 1 and data interface B is bound to test module 2.
The interface reading module is used for reading data interface information accessed to the test station. In this embodiment, the data interface information is the data interface a or the data interface B.
The interface judging module is used for judging whether a current data interface is bound with a current testing module according to the data interface information and preset interface binding information, and is also used for judging whether the current data interface is bound with other testing modules when judging that the current data interface is not bound with the current testing module, and if not, generating a binding prompt; the interface judgment module is also used for binding the current data interface with the current test module after receiving the binding confirmation information, and adding the binding confirmation information into the preset interface binding information; and generating a judgment result, wherein the judgment result is bound or unbound. In this embodiment, the information of the binding confirmation is input by the worker.
And the alarm module is used for generating alarm information when the judgment result is that the binding is not bound. In this embodiment, the alarm information is: the test failed.
And the test module is used for starting a test item when the judgment result is that the test item is bound. The test items comprise a blackboard test and/or a whiteboard test; and the test items of the corresponding test modules of the adjacent test stations are not completely the same.
In this embodiment, the test items of the test station No. 1 include a blackboard test, and the test items of the test station No. 2 include a whiteboard test; in other embodiments, the test items of the test station No. 1 may further include a blackboard test and a whiteboard test, the test items of the test station No. 2 include the whiteboard test and do not include the blackboard test, and the test items of the test station No. 1 and the test station No. 2 are not identical. Of course, in another embodiment, the test items may further include a line OS (product internal line on-off test), an AutoFocusfar (product definition test), a POG (product imaging dark cluster test), a POD (product imaging dark dot, bright dot test), an AWB (product optical correction), an MTF (modulation transfer function), and the like.
When the blackboard is tested, the test module is also used for obtaining a detection value, judging whether the detection value is smaller than a preset card control value or not, and if the detection value is smaller than the preset card control value, generating blackboard test passing information; and during whiteboard testing, the testing module is also used for acquiring a detection value, judging whether the detection value is greater than a preset card control value, and if so, generating whiteboard testing passing information. The preset card control value can be set according to actual conditions. In this embodiment, the card control value is an RGB value range, and may be specifically selected according to the strict conditions of actual tests.
Based on a camera module testing system, the embodiment further provides a camera module testing method, which includes the following steps:
s1, connecting a data interface of a test mainboard carrying a camera module with a data connector of a test station;
s2, reading data interface information accessed to a test station;
s3, judging whether the current data interface is bound with the current test module according to the data interface information and preset interface binding information, and if so, jumping to S4; if not, judging whether the current data interface is bound with other test modules, if so, jumping to S5, and if not, generating a binding prompt; and after the binding prompt is generated, judging whether the information of the binding confirmation is received, if so, binding the current data interface with the current test module, and jumping to S4.
S4, starting a test project; the test items comprise a blackboard test and/or a whiteboard test; and the test items of the corresponding test modules of the adjacent test stations are not completely the same. When the blackboard is tested, obtaining a detection value, judging whether the detection value is smaller than a preset card control value, and if so, generating blackboard test passing information; and when the whiteboard is tested, obtaining a detection value, judging whether the detection value is greater than a preset clamping value, and if so, generating whiteboard test passing information.
And S5, generating alarm information.
Example two
The difference between this embodiment and the first embodiment is that, in this embodiment, the test items of the test station No. 1 include a blackboard test and do not include a whiteboard test; the test items of test station No. 2 include a whiteboard test and do not include a blackboard test.
The alarm module is also used for displaying alarm information. The alarm module is also used for judging whether the alarm confirmation information is received in the preset time period for displaying the alarm information, and if the alarm confirmation information is not received, a distinguishing test instruction is sent to the test module.
The test module 1 is also used for carrying out blackboard test at the No. 1 test station after receiving the distinguishing test instruction, and storing the test information into the No. 1 test station current test mainboard. The test module 2 is also used for carrying out whiteboard test at the No. 2 test station and storing test information into the No. 2 test station current test mainboard.
The test information reading module is arranged in the burning station and used for reading test information from the test mainboard, judging whether the test information is wrong or not based on the test information and prestored associated information of the test mainboard and the test station, and if so, generating a work stopping instruction.
If the staff is not at the post or does not perform the work duty seriously, the situation that the warning information cannot be confirmed by the staff may exist, the blackboard test is carried out at the No. 1 test station, and the test information is stored in the current test mainboard of the No. 1 test station. And the test module 2 performs whiteboard test at the No. 2 test station and stores test information into the No. 2 test station current test mainboard. Therefore, test information which should not exist is stored in the two test main boards (because the No. 1 test station is not bound with the No. 1 test station currently, test information of a blackboard should not exist). The test information reading module judges that the test information is wrong (namely test information which should not exist is stored in the test mainboard), and generates a stop working instruction, so that the condition of burning errors can be effectively avoided.
The camera module testing method of the embodiment uses the camera module testing system.
The above are merely examples of the present invention, and the present invention is not limited to the field related to this embodiment, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art can know all the common technical knowledge in the technical field before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the scheme, and some typical known structures or known methods should not become barriers to the implementation of the present invention by those skilled in the art in light of the teaching provided in the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. A camera module testing system comprises a plurality of testing stations and a plurality of testing main boards for carrying camera modules, wherein the camera modules are fixed on the corresponding testing main boards, data connectors are arranged on the testing stations, and data interfaces for connecting the data connectors are arranged on the testing main boards;
the system is characterized by also comprising an interface reading module, an interface judging module, a testing module and an alarming module which are arranged corresponding to the testing station;
the interface reading module is used for reading data interface information accessed to the test station;
the interface judging module is used for judging whether the current data interface is bound with the current testing module according to the data interface information and preset interface binding information and generating a judging result;
the test module is used for starting a test item when the judgment result is that the test item is bound;
and the alarm module is used for generating alarm information when the judgment result is that the binding is not available.
2. The camera module testing system of claim 1, wherein: the interface judging module is used for judging whether the current data interface is bound with other testing modules or not when judging that the current data interface is not bound with the current testing module, and generating a binding prompt if the current data interface is not bound with other testing modules; the interface judgment module is also used for binding the current data interface with the current test module after receiving the binding confirmation information, and adding the binding confirmation information into the preset interface binding information.
3. The camera module testing system of claim 2, wherein: the test items comprise a blackboard test and/or a whiteboard test; and the test items of the test modules corresponding to the adjacent test stations are not completely the same.
4. The camera module testing system of claim 3, wherein: when the blackboard is tested, the test module is also used for obtaining a detection value, judging whether the detection value is smaller than a preset card control value or not, and if the detection value is smaller than the preset card control value, generating blackboard test passing information; and during whiteboard testing, the testing module is also used for acquiring a detection value, judging whether the detection value is greater than a preset card control value, and if so, generating whiteboard testing passing information.
5. The camera module testing system of claim 4, wherein: the device also comprises a storage module used for storing the preset interface binding information.
6. A camera module testing method applied to the camera module testing system according to any one of claims 1 to 5, comprising the steps of:
s1, connecting a data interface of a test mainboard carrying a camera module with a data connector of a test station;
s2, reading data interface information accessed to a test station;
s3, judging whether the current data interface is bound with the current test module according to the data interface information and preset interface binding information, and if so, jumping to S4; if not, jumping to S5;
s4, starting a test project;
and S5, generating alarm information.
7. The camera module testing method of claim 6, wherein: in the step S3, when the data interface is not bound, whether the current data interface is bound with other test modules is judged, and if the current data interface is not bound, a binding prompt is generated; and after the binding prompt is generated, judging whether the information of the binding confirmation is received, if so, binding the current data interface with the current test module, and jumping to S4.
8. The camera module testing method according to claim 7, wherein: in S4, the test items comprise a blackboard test and/or a whiteboard test; and the test items of the corresponding test modules of the adjacent test stations are not completely the same.
9. The method for testing a camera module according to claim 8, wherein: in the step S4, when the blackboard is tested, a detection value is obtained, whether the detection value is smaller than a preset card control value or not is judged, and if the detection value is smaller than the preset card control value, blackboard test passing information is generated; and during whiteboard testing, acquiring a detection value, judging whether the detection value is greater than a preset card control value, and if so, generating whiteboard testing passing information.
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