CN203327181U - Multi-camera-module testing tool - Google Patents

Multi-camera-module testing tool Download PDF

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Publication number
CN203327181U
CN203327181U CN2013203608359U CN201320360835U CN203327181U CN 203327181 U CN203327181 U CN 203327181U CN 2013203608359 U CN2013203608359 U CN 2013203608359U CN 201320360835 U CN201320360835 U CN 201320360835U CN 203327181 U CN203327181 U CN 203327181U
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CN
China
Prior art keywords
module
test fixture
camera
camera module
light source
Prior art date
Application number
CN2013203608359U
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Chinese (zh)
Inventor
闫玮
陶晔
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豪威科技(上海)有限公司
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Priority to CN2013203608359U priority Critical patent/CN203327181U/en
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Publication of CN203327181U publication Critical patent/CN203327181U/en

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Abstract

The utility model provides a multi-camera-module testing tool. The multi-camera-module testing tool comprises a measuring head board, an FPGA testing tool main boards and PC terminals, wherein the measuring head board comprises a plurality of camera modules and a signal gating control module connected with each camera module, the signal gating control module is connected with the FPGA testing tool main boards, and the PC terminals are connected with the FPGA testing tool main boards. The multi-camera-module testing tool can simultaneously calibrate the plurality of modules at a time, thereby improving the production efficiency and saving the number of the FPGA testing tool main boards and the cost.

Description

Multi-cam module test fixture

Technical field

The utility model relates to a kind of multi-cam module test fixture.

Background technology

For guaranteeing the consistency of module, module factory need to be calibrated and the OTP of calibration data writes every module.Yet existing every cover camera module test fixture can only be tested a camera module at every turn; And, overlap camera module test fixture more and use a light source simultaneously, can not take full advantage of the middle stable position of light source; In addition, overlap the FPGA frock more and use simultaneously, cost is higher.

As shown in Figure 1, if adopt existing camera module test fixture, if need 4 cover test head plate 10, a camera module 110 is set, in requisition for 4 cover FPGA test fixture mainboards 20 on every cover test head plate 10.As shown in Figure 2, the workflow of the existing camera module of every cover test fixture is: FPGA test fixture mainboard 20 obtains the image data of camera module 110, PC end 30 calculates calibration data according to described image data, and calibration data is write to OTP, when existing camera module test fixture is used, can only calibrate a camera module at every turn on the product line, need afterwards manually to change the camera module.

At present, the stability of camera module (as the AWB module) calibration depends on the stability of light source.But the light source of selecting at present, even the light source DNP of specialty in industry also exists in colour temperature and drifts about in time, the DNP index 5100K+-200K that dispatches from the factory, and in actual use, the colour temperature difference of many DNP tends to reach+-300K.Due to just exist+-4%~+-6% difference of light source itself, this for the calibration of camera module after, the consistency of module exists great impact.

The utility model content

The purpose of this utility model is to provide a kind of multi-cam module test fixture, can once calibrate many modules simultaneously, enhances productivity, and saves quantity and the cost of FPGA test fixture mainboard.

For addressing the above problem, the utility model provides a kind of multi-cam module test fixture, comprising: test head plate, FPGA test fixture mainboard and PC end,

Described test head plate comprises many camera modules and the signal gating control module be connected with every camera module, and described signal gating control module is connected with described FPGA test fixture mainboard;

Described PC end is connected with described FPGA test fixture mainboard.

Further, in above-mentioned test fixture, the quantity of described camera module is 4.

Further, in above-mentioned test fixture, described signal gating control module comprises signal gating module and the data strobe module be connected with every camera module respectively.

Further, in above-mentioned test fixture, described signal gating module is the CPLD chip.

Further, in above-mentioned test fixture, described data strobe module is mux class chip.

Further, in above-mentioned test fixture, the SN65TLVDT125A chip that described mux class chip is TI company.

Further, in above-mentioned test fixture, every camera module is positioned at the centre position of light source.

Further, in above-mentioned test fixture, in many camera modules, one of them camera module is typical module, and remaining camera module is for needing the module of proofreading and correct.

Compared with prior art, the utility model comprises test head plate, FPGA test fixture mainboard and PC end, described test head plate comprises many camera modules and the signal gating control module be connected with every camera module, described signal gating control module is connected with described FPGA test fixture mainboard, described PC end is connected with described FPGA test fixture mainboard, can once calibrate many modules simultaneously, enhance productivity, save quantity and the cost of FPGA test fixture mainboard.

In addition, every camera module is positioned at the centre position of light source, can guarantee that every light source position corresponding to camera module fixes, thereby effectively utilizes the middle part of light stability.

In addition, in many camera modules, one of them camera module is typical module, remaining camera module is for needing the module of proofreading and correct, can carry out the coefficient of light source real-time calibration using typical module as light source and obtain coefficient of light source, PC end calls after coefficient of light source the calibration data that obtains remaining camera module according to real-time calibration, to calibrate again data recording to OTP, thereby minimizing light source fluctuation and difference are to the image of the calibration data of camera module.

The accompanying drawing explanation

Fig. 1 is the structure chart of existing camera module test fixture;

Fig. 2 is the workflow diagram of existing camera module test fixture;

Fig. 3 is the structure chart of the multi-cam module test fixture of the utility model one embodiment;

Fig. 4 is the workflow diagram of the multi-cam module test fixture of the utility model one embodiment;

Fig. 5 is the catenation principle figure of the multi-cam module test fixture of the utility model one embodiment;

Fig. 6 be the utility model one embodiment take a camera module as typical module, the schematic diagram of the module that all the other need to be proofreaied and correct for schematic diagram;

Fig. 7 is the schematic diagram of the dynamic real time correction of coefficient of light source of the utility model one embodiment.

Embodiment

For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

As shown in Figure 3, the utility model provides a kind of multi-cam module test fixture, comprises test head plate 1, FPGA test fixture mainboard 2 and PC(personalcomputer) hold 3,

Described test head plate 1 comprises many camera modules 11 and the signal gating control module 12 be connected with every camera module 11, and described signal gating control module 12 is connected with described FPGA test fixture mainboard 2;

Described PC end 3 is connected with described FPGA test fixture mainboard 3.Concrete, as shown in Figure 4, the workflow of multi-cam module test fixture of the present utility model is: FPGA test fixture mainboard obtains the image data of i camera module, the PC end calculates calibration data according to described image data, and calibration data is write to OTP, then to i+1, i+2, i+3 ... camera module is made aforesaid operations, realizes once calibrating many modules simultaneously, enhance productivity, save quantity and the cost of FPGA test fixture mainboard.

Preferably, every camera module 11 is positioned at the centre position of light source, can guarantee that every light source position corresponding to camera module fixes, thereby effectively utilizes the middle part of light stability.

Preferably, the quantity of described camera module 11 is 4.

Preferably, described signal gating control module 12 comprises signal gating module and the data strobe module be connected with every camera module respectively.

Preferably, described signal gating module is CPLD(ComplexProgrammableLogicDevice, CPLD) chip; Described data strobe module is mux class chip, the SN65TLVDT125A chip that described mux class chip is TI company.Concrete, as shown in Figure 5, the camera module is mobile phone camera module (camera), each mobile phone camera module has a pair of CLK clock line, 4 pairs of data wires, power control line, PWDN, reset, I2C and ground connection, can pass through the mux chip, SN65TLVDT125A chip as TI company, realize that the data of 4 mobile phone camera modules are to Lane0, 1, 2 or 3 enter chip, the control signal of the GPIO exported according to FPGA test fixture mainboard 2, module data of gating output are to as Lane0, utilize the chip of 5 TI, can realize the image input of 4 modules, realize the output of the image of a module by gating, the Lane0 that simultaneously needs every module, 1, 2 and 3 signal is to synchronously needing as data, other control signals, power supply for example, PWDN, reset completes gating by CPLD.

Preferably, as shown in Figure 6, in many camera modules, one of them camera module is typical module, and remaining camera module is for needing the module of proofreading and correct.Concrete, utilize typical module at every enterprising rower of light source regularly, if the time interval of demarcating is short, can greatly affect the production of factory; The time interval is longer, light source color temperature drift under can't avoiding for a long time, so practical application is more difficult, as shown in Figure 7, can first obtain image R/G_0 and the B/G_0 data (in advance demarcate) of typical module under standard sources in the present embodiment, obtain image R/G_n and the B/G_n data (Real-time Collection) of typical module under regulation light source n, then the PC end is calculated as follows coefficient of light source again:

Coefficient of light source RG_n=(R/G_0)/(R/G_n);

Coefficient of light source BG_n=(B/G_0)/(B/G_n);

Because R/G_n and B/G_n are real-time data collection, the method can the real-time calibration coefficient of light source;

Described FPGA test fixture mainboard 2 obtains each module that need to proofread and correct as i, j, and k is image data R/G_i and B/G_i under light source n, R/G_j and B/G_j, R/G_k and B/G_k, or unified module R/G@light source n and the module B/G@light source n of being designated as;

Then, described PC end obtains every calibration parameter module R/G and module B/G that needs the module of correction according to following formula:

Module R/G=module R/G@light source n* coefficient of light source RG_n;

Module B/G=module B/G@light source n* coefficient of light source BG_n;

Finally, described PC end is carried out to the OTP burning by the calibration parameter module R/G and the module B/G that get.

The utility model comprises test head plate, FPGA test fixture mainboard and PC end in sum, described test head plate comprises many camera modules and the signal gating control module be connected with every camera module, described signal gating control module is connected with described FPGA test fixture mainboard, described PC end is connected with described FPGA test fixture mainboard, can once calibrate many modules simultaneously, enhance productivity, save quantity and the cost of FPGA test fixture mainboard.

In addition, in many camera modules, one of them camera module is typical module, remaining camera module is for needing the module of proofreading and correct, can carry out the coefficient of light source real-time calibration using typical module as light source and obtain coefficient of light source, PC end calls after coefficient of light source the calibration data that obtains remaining camera module according to real-time calibration, to calibrate again data recording to OTP, thereby minimizing light source fluctuation and difference are to the image of the calibration data of camera module.

In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.For the disclosed system of embodiment, owing to corresponding to the method disclosed in Example, so description is fairly simple, relevant part partly illustrates and gets final product referring to method.

Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model utility model.Like this, if, within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these change and modification.

Claims (8)

1. a multi-cam module test fixture, is characterized in that, comprising: test head plate, FPGA test fixture mainboard and PC end,
Described test head plate comprises many camera modules and the signal gating control module be connected with every camera module, and described signal gating control module is connected with described FPGA test fixture mainboard;
Described PC end is connected with described FPGA test fixture mainboard.
2. multi-cam test fixture as claimed in claim 1, is characterized in that, the quantity of described camera module is 4.
3. multi-cam test fixture as claimed in claim 1, is characterized in that, described signal gating control module comprises signal gating module and the data strobe module be connected with every camera module respectively.
4. multi-cam test fixture as claimed in claim 3, is characterized in that, described signal gating module is the CPLD chip.
5. multi-cam test fixture as claimed in claim 3, is characterized in that, described data strobe module is mux class chip.
6. multi-cam test fixture as claimed in claim 5, is characterized in that, the SN65TLVDT125A chip that described mux class chip is TI company.
7. multi-cam test fixture as claimed in claim 1, is characterized in that, every camera module is positioned at the centre position of light source.
8. multi-cam test fixture as claimed in claim 1, is characterized in that, in many camera modules, one of them camera module is typical module, and remaining camera module is for needing the module of proofreading and correct.
CN2013203608359U 2013-06-21 2013-06-21 Multi-camera-module testing tool CN203327181U (en)

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106210713A (en) * 2016-08-30 2016-12-07 昆山软龙格自动化技术有限公司 A kind of many modules of mobile phone camera module test device simultaneously
CN106254863A (en) * 2016-10-20 2016-12-21 广东弘景光电科技股份有限公司 Double camera module aided alignment apparatus and the calibration steps taking the photograph module of panorama
CN106713908A (en) * 2017-03-02 2017-05-24 中国电子科技集团公司第四十四研究所 Apparatus for multi-path CCD camera test and control method
CN106851183A (en) * 2015-12-04 2017-06-13 宁波舜宇光电信息有限公司 Multi-channel video processing system and method based on FPGA
CN106973242A (en) * 2017-05-16 2017-07-21 信利光电股份有限公司 A kind of light source compensating method of camera module
CN106993182A (en) * 2017-03-17 2017-07-28 惠州凯珑光电有限公司 A kind of dual camera detection means, system and method
CN107071296A (en) * 2017-05-15 2017-08-18 信利光电股份有限公司 A kind of brightness adjustment method of panorama dual camera
CN107707905A (en) * 2017-09-26 2018-02-16 惠州市德赛西威汽车电子股份有限公司 A kind of multi-cam tests display system
CN107728421A (en) * 2017-11-05 2018-02-23 信利光电股份有限公司 A kind of calibration method and calibration system of multispectral multi-cam module
CN107734327A (en) * 2017-11-05 2018-02-23 信利光电股份有限公司 A kind of brilliant synchrotron method of multi-cam module
CN107820023A (en) * 2017-11-05 2018-03-20 信利光电股份有限公司 A kind of color synchronous method of multi-cam module
CN107835408A (en) * 2017-11-05 2018-03-23 信利光电股份有限公司 A kind of calibration method and calibration system of multi-cam module
CN107896327A (en) * 2017-11-05 2018-04-10 信利光电股份有限公司 A kind of calibration method and calibration system of multi-cam module
CN107896329A (en) * 2017-11-15 2018-04-10 信利光电股份有限公司 A kind of luminance compensation method of multi-cam module
CN107911692A (en) * 2017-11-05 2018-04-13 信利光电股份有限公司 A kind of calibration method of multispectral multi-cam module
CN107948633A (en) * 2017-11-05 2018-04-20 信利光电股份有限公司 A kind of calibration method and calibration system of multi-cam module
CN108093250A (en) * 2017-12-22 2018-05-29 信利光电股份有限公司 A kind of calibration method for burn-recording of multi-cam module and calibration programming system
CN108696748A (en) * 2018-06-29 2018-10-23 上海与德科技有限公司 A kind of adjusting, measuring method, system and server based on multi-cam module
WO2018196734A1 (en) * 2017-04-26 2018-11-01 宁波舜宇光电信息有限公司 Test data processing device, test data processing method and test apparatus
CN109525836A (en) * 2018-11-26 2019-03-26 昆山软龙格自动化技术有限公司 Embedded multimode based on FPGA is same to survey device
EP3606065A4 (en) * 2017-03-20 2020-12-16 Ningbo Sunny Opotech Co., Ltd. Media module for testing camera module, testing panel and testing board

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106851183A (en) * 2015-12-04 2017-06-13 宁波舜宇光电信息有限公司 Multi-channel video processing system and method based on FPGA
CN106851183B (en) * 2015-12-04 2020-08-21 宁波舜宇光电信息有限公司 Multi-channel video processing system and method based on FPGA
WO2018040142A1 (en) * 2016-08-30 2018-03-08 昆山软龙格自动化技术有限公司 Multi-module simultaneous test device for mobile phone camera modules
CN106210713A (en) * 2016-08-30 2016-12-07 昆山软龙格自动化技术有限公司 A kind of many modules of mobile phone camera module test device simultaneously
CN106254863A (en) * 2016-10-20 2016-12-21 广东弘景光电科技股份有限公司 Double camera module aided alignment apparatus and the calibration steps taking the photograph module of panorama
CN106254863B (en) * 2016-10-20 2017-11-21 广东弘景光电科技股份有限公司 The double camera module aided alignment apparatus and calibration method for taking the photograph module of panorama
CN106713908B (en) * 2017-03-02 2019-01-29 中国电子科技集团公司第四十四研究所 Device and control method for the test of multichannel CCD camera
CN106713908A (en) * 2017-03-02 2017-05-24 中国电子科技集团公司第四十四研究所 Apparatus for multi-path CCD camera test and control method
CN106993182A (en) * 2017-03-17 2017-07-28 惠州凯珑光电有限公司 A kind of dual camera detection means, system and method
EP3606065A4 (en) * 2017-03-20 2020-12-16 Ningbo Sunny Opotech Co., Ltd. Media module for testing camera module, testing panel and testing board
WO2018196734A1 (en) * 2017-04-26 2018-11-01 宁波舜宇光电信息有限公司 Test data processing device, test data processing method and test apparatus
CN107071296A (en) * 2017-05-15 2017-08-18 信利光电股份有限公司 A kind of brightness adjustment method of panorama dual camera
CN106973242A (en) * 2017-05-16 2017-07-21 信利光电股份有限公司 A kind of light source compensating method of camera module
CN107707905A (en) * 2017-09-26 2018-02-16 惠州市德赛西威汽车电子股份有限公司 A kind of multi-cam tests display system
CN107948633B (en) * 2017-11-05 2019-12-31 信利光电股份有限公司 Calibration method and calibration system for multi-camera module
CN107728421A (en) * 2017-11-05 2018-02-23 信利光电股份有限公司 A kind of calibration method and calibration system of multispectral multi-cam module
CN107820023A (en) * 2017-11-05 2018-03-20 信利光电股份有限公司 A kind of color synchronous method of multi-cam module
CN107835408A (en) * 2017-11-05 2018-03-23 信利光电股份有限公司 A kind of calibration method and calibration system of multi-cam module
CN107911692A (en) * 2017-11-05 2018-04-13 信利光电股份有限公司 A kind of calibration method of multispectral multi-cam module
CN107948633A (en) * 2017-11-05 2018-04-20 信利光电股份有限公司 A kind of calibration method and calibration system of multi-cam module
CN107911692B (en) * 2017-11-05 2020-02-14 信利光电股份有限公司 Multispectral multi-camera module calibration method
CN107734327A (en) * 2017-11-05 2018-02-23 信利光电股份有限公司 A kind of brilliant synchrotron method of multi-cam module
CN107896327A (en) * 2017-11-05 2018-04-10 信利光电股份有限公司 A kind of calibration method and calibration system of multi-cam module
CN107896329B (en) * 2017-11-15 2019-04-30 信利光电股份有限公司 A kind of luminance compensation method of multi-cam mould group
CN107896329A (en) * 2017-11-15 2018-04-10 信利光电股份有限公司 A kind of luminance compensation method of multi-cam module
CN108093250A (en) * 2017-12-22 2018-05-29 信利光电股份有限公司 A kind of calibration method for burn-recording of multi-cam module and calibration programming system
CN108093250B (en) * 2017-12-22 2020-02-14 信利光电股份有限公司 Calibration burning method and calibration burning system for multi-camera module
CN108696748A (en) * 2018-06-29 2018-10-23 上海与德科技有限公司 A kind of adjusting, measuring method, system and server based on multi-cam module
CN109525836A (en) * 2018-11-26 2019-03-26 昆山软龙格自动化技术有限公司 Embedded multimode based on FPGA is same to survey device

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