CN110940930A

CN110940930A - Detection method and device for LED array white light communication PCB

Info

Publication number: CN110940930A
Application number: CN201910712499.1A
Authority: CN
Inventors: 章幼路; 张宣东; 蔡达伟
Original assignee: Zhuhai Future Electronic Technology Co Ltd
Current assignee: Zhuhai Future Electronic Technology Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-03-31

Abstract

The invention discloses a method for detecting an LED array white light communication PCB circuit board, which comprises the following steps: s1, setting an online detection device; s2, fixing the LED array white light communication PCB circuit board to be detected: s3, adjusting the CCD; s4, testing a channel; s5, shooting by a CCD; s6, judging by a PC main control computer; s7, counting results; s8, analyzing result regularity: and regularly analyzing the parameters and coordinate position information of the unqualified LED, and outputting a reference scheme for designing the PCB or improving the manufacturing process. The invention also discloses a detection device for implementing the method, which comprises a PC main control computer and a CCD detection platform connected with the PC main control computer, wherein ARGIVISION intelligent vision system software is arranged in the PC main control computer; the CCD detection platform comprises a workbench, a CCD device, a field display and a power supply of an LED array white light communication PCB circuit board. The invention can carry out comprehensive and accurate performance and parameter test on the LED array white light communication PCB circuit board, can carry out fault analysis, and has high efficiency and accuracy.

Description

Detection method and device for LED array white light communication PCB

Technical Field

The invention belongs to the technical field of LED product manufacturing, and particularly relates to a detection method and a detection device for an LED array white light communication PCB.

Background

An LED, i.e., a light emitting diode, is a solid-state semiconductor device capable of converting electrical energy into visible light, which can directly convert electricity into light. The white light communication technology is also called "visible light communication technology" (visible light communication), and the principle is to modulate information to be transmitted onto the driving current of an LED lamp, so that the LED array lamp flashes at a very high frequency. Although this flicker is invisible to the human eye, the communication carried by this high frequency flicker is detected by the photodetector. The visible light communication technology based on the white light LED integrates the advantages of optical communication and wireless communication, conforms to the development trend of white light LED devices as next generation green solid illumination light sources, is a novel communication technology with high speed, flexibility and environmental protection, and has huge application prospect because a communication circuit can be perfectly integrated with a driving circuit of an LED lamp.

The visible light communication technology is light wave communication, so that no electromagnetic pollution exists, and the human health is facilitated; because of the linear transmission of light, the coverage range of communication signals is visible and controllable, and the privacy is strong; because the lighting network can be utilized in combination with the lighting naturally, a new special network is not needed, and energy conservation and environmental protection are achieved; because of the optical wave communication, the frequency band resource is theoretically up to 100THz, the communication speed overtakes WiFi and no authorization is needed. Generally, the visible light communication technology is used as a new wireless communication technology, and various problems in the development of the wireless communication technology are solved.

The visible light communication technology is a wireless optical communication mode, and a system of the visible light communication technology comprises a downlink and an uplink. The downlink includes both transmit and receive parts. The transmitting part mainly comprises an input and processing circuit which converts a signal source signal into an electric signal convenient for optical channel transmission, and an LED visible light drive modulation circuit which modulates the electric signal into light carrier intensity variation. With the advent of high power white LEDs, a large number of white LEDs are used as illumination sources. The LED illumination light source makes visible white light an excellent information carrier by virtue of low power consumption and easy modulation.

White light LED indoor wireless communication is an emerging wireless optical communication technology. The application of white light LEDs in wireless communication is relatively late in China. Many factors restrict the performance of the white light LED indoor wireless communication system, and in order to perform system analysis more comprehensively, a more complete system model must be established and can be realized through deeper analysis, and particularly, the white light LED array PCB needs to be tested comprehensively and accurately in performance and parameters to confirm that the white light LED array PCB meets the requirements, and then the assembly stage of the final product is started.

Firstly, testing the electrical and physical properties and parameters of a white light LED array PCB and analyzing the failure rule of the white light LED array PCB so as to overcome the defects and improve the yield; secondly, a visible light channel of the white light LED array PCB circuit board is required to be tested and analyzed. The visible light communication system has a channel impulse response different from that of infrared wireless communication, the reasons for causing intersymbol interference (ISI) are different between the two systems, and the channel impulse response of the visible light communication system in a multi-light source and time-varying channel environment and ISI caused by different optical paths need to be designed and optimized, so that the influence of intersymbol interference (ISI) is solved.

The current method and equipment for detecting the LED array products are not strong in pertinence, and further improvement is needed. For example, a patent of an LED lamp detecting device disclosed in patent application No. CN201620516167.8 has the following disadvantages; a special analyzer and manual visual inspection are needed, the special analyzer is configured in a plurality of ways, the cost is high, the specialization is strong, the requirement on users is high, and the special analyzer mainly faces the research and development departments of large enterprises; some small-sized enterprises with limited technical strength and fund generally adopt a manual visual inspection method, the defects are obvious, the method has requirements on the experience of detection personnel, the workload is high, the visual fatigue is easy, the missed detection and the misjudgment are caused, and finally the efficiency is low, in the prior art, the fixing equipment of the LED array PCB is quite unstable, the poor contact of the LED array PCB is often caused due to the placement size or asymmetry of the LED array PCB, a certain error is caused to the detection work, and the lamp in the tray is inconvenient to take out after the detection is finished, so that the LED array PCB is taken out after the detection is finished, which is a quite complicated process; the detection in the prior art can not directly make qualified and unqualified marks, so that workers need to record one by one, the detection work efficiency is low, and meanwhile, the fault rule and the reason of the workers can not be accurately analyzed, so that the improvement is facilitated.

Aiming at the defects in the existing detection technology of products such as an LED array PCB and the like, the detection method and the detection device of the LED array white light communication PCB do not need manual observation, have comprehensive and accurate performance parameters and can analyze fault causes.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a method and a device for detecting an LED array white light communication PCB.

In order to achieve the purpose, the invention provides the following technical scheme:

a detection method of an LED array white light communication PCB circuit board is characterized in that: the method comprises the following steps:

s1, setting an online detection device, wherein the device comprises a PC main control computer and a CCD detection table connected with the PC main control computer, and ARGIVISION intelligent vision system software is arranged in the PC main control computer; the CCD detection platform comprises a workbench, a CCD device, a field display and a power supply of an LED array white light communication PCB circuit board;

s2, fixing the LED array white light communication PCB circuit board to be detected: placing the white light communication PCB circuit board welded with the LED array on a bearing tray of a workbench, and pressing a supporting plate by using the LED array white light communication PCB circuit board to enable a buckle to be movably clamped above the white light communication PCB circuit board, so that each PCB electric contact point below the whole bearing tray is electrically connected with a back test point of the white light communication PCB circuit board;

s3, adjusting the CCD: the CCD camera is moved left and right on the sliding rod, so that the picture of the white light communication PCB circuit board shot by the camera is displayed in the middle of the display, then the CCD camera is fixed through the fastening bolt, then the sliding block is adjusted up and down on the lifting support, so that the camera can shoot the clearest picture of the LED array white light communication PCB circuit board, and then the sliding block is fixed through the fastening bolt;

s4, channel test: starting a PC main control machine and a power supply, wherein the power supply sequentially selects multi-channel voltage, and the PC main control machine outputs different control signals to respectively adjust the brightness, color and the like of the LED array white light communication PCB circuit board; when a plurality of groups of LED array white light communication PCB circuit boards need to be tested, the power supply respectively controls the power on and off of each group of LED array white light communication PCB circuit boards;

s5, CCD shooting: the CCD camera shoots a plurality of groups of clear pictures or video signals of the LED array white light communication PCB circuit board in a power-on and power-off state, and then transmits the pictures or the video signals to the PC main control computer, and the pictures or the videos shot in real time are synchronously displayed on the field display;

s6, judging by the PC main control computer: the PC main control computer judges whether the ARGIVISION intelligent vision system software is passed through, analyzes and processes the received photo or video signal, and outputs the result on a visual interface of the built-in software of the PC main control computer, wherein the visual interface comprises the quantity, color temperature and frequency parameters of the LEDs forming the array, when the requirement of the preset parameters is met, PASS is displayed to be passed, and when the requirement of the preset parameters is not met, NG is displayed not to be passed; the result is synchronously displayed on the field display;

s7, counting the results: the PC main control computer automatically counts and records the detection result of each LED parameter on the tested LED array white light communication PCB circuit board, and records the parameter and coordinate position information of unqualified LEDs;

s8, analyzing result regularity: and repeating the steps S2-S7 to finish testing the white light communication PCB circuit boards of a processing batch, regularly analyzing the parameters and the coordinate position information of unqualified LEDs by the PC main control computer, and outputting a reference scheme for designing the PCB circuit boards or improving the manufacturing process.

In step S6, the step of analyzing and processing by using the ARGIVISION smart vision system software includes:

(61) carrying out variable setting, communication setting, voice setting, display setting, system setting and the like on the system, and setting various parameters of the system into various parameters suitable for the LED array white light communication PCB circuit board;

(62) setting various calibrations, establishing the relation between the image pixel size and the actual size, and establishing the mapping relation between an image coordinate system and a target coordinate system;

(63) collecting images, marking, analyzing and judging the images, and outputting and displaying the judgment result.

In step S8, the specific steps of the PC main control computer performing regularity analysis on the parameters and coordinate position information of the unqualified LED, and outputting the quality of the LED lamp bead of the PCB or the reference scheme for improving the manufacturing process are as follows:

(81) collecting the running data of a plurality of LED array white light communication PCB circuit boards in a set time interval when the LED array white light communication PCB circuit boards normally run, and establishing a curve of the running data of the plurality of LED array white light communication PCB circuit boards changing along with time;

(82) calculating the showing times of the same white light communication PCB circuit board operation data in a set interval, and establishing a normal distribution relation curve of the operation data of a plurality of white light communication PCB circuit boards and the lighting times of the white light communication PCB circuit boards to obtain a 95% credible interval of the normal distribution relation curve;

(83) establishing a fault detection rule base, setting a fault tree model for detecting the LED array white light communication PCB, and setting a tree diagram reflecting a causal relationship;

(84) importing LED parameters and coordinate positions which are obtained by detecting white light communication PCB circuit board products of the same batch and are unqualified in statistics, namely importing fact database data, calculating the distribution probability within a 95% credible interval of the lighting times of the data of the PCB circuit board, and judging that a fault occurs if the distribution probability is within a preset abnormal range;

(85) performing abnormal reason operation according to the fault tree model, wherein if the fault frequency distribution probability of the LEDs at the same coordinate position is within a preset abnormal range, the LEDs belong to welding process defects, and the welding process needs to be improved; if the fault frequency distribution probability of the dimming variation range of the LED is within a preset abnormal range, the LED lamp bead belongs to the quality defect of the LED lamp bead, and the LED lamp bead with qualified quality needs to be adopted.

The LED array white light communication PCB circuit board detection device is characterized by comprising a PC main control machine and a CCD detection table connected with the PC main control machine, wherein ARGIVISION intelligent vision system software is arranged in the PC main control machine; the CCD detection platform comprises a workbench, a CCD device, a field display and a power supply of an LED array white light communication PCB circuit board.

CCD detect platform include workstation (1), its characterized in that: the automatic monitoring device is characterized in that a lifting support (3) is fixedly welded on one side of the upper portion of the workbench (1), a slider (4) is movably connected onto the lifting support (3) through a fastening bolt (5), a sliding rod (6) is also movably connected onto the slider (4) through a fastening bolt (5), a camera (7) is also movably connected onto the sliding rod (6) through the fastening bolt (5), a camera (8) is fixedly arranged at the bottom of the camera (7), a supporting rod (9) is fixedly welded on the rear side edge of the workbench (1), a mounting frame (10) is fixedly arranged on the upper portion of the supporting rod (9), a display (11) is fixedly mounted on the mounting frame (10), a power switch (15), a bearing tray (17) and a power control module (12) are arranged on the workbench (1), and a key (16) is movably arranged on the power switch (15), bear both sides top of tray (17) and be equipped with buckle groove (19), the inside fixedly connected with spring (20) in buckle groove (19), top fixedly connected with buckle (21) of spring (20), electric contact point groove (22) have been seted up to the lower part in buckle groove (19), through spring (20) fixedly connected with plastic board (23) in electric contact point groove (22), fixedly connected with electric contact point (24) are gone up in plastic board (23), the bottom of bearing tray (17) is equipped with backup pad groove (25), inside spring (20) fixedly connected with backup pad (26) of passing through of backup pad groove (25).

The bottom fixed welding of workstation (1) has four groups landing legs (2), four groups landing leg (2) are in the four corners department of workstation (1) respectively, the lower part of workstation (1) is equipped with PC main control computer (14).

The middle of lifting support (3) is equipped with spout (18), slider (4) set to the E type, and slider (4) joint is on lifting support (3), one side threaded connection of slider (4) has fastening bolt (5), fastening bolt (5) laminating is on a lateral wall of lifting support (3).

The utility model discloses a PC main control computer, including power control module (12), PC main control computer (14), switch (15), camera (7) and display (11), power control module (12) are connected the commercial power, and through electric wire (13) respectively with PC main control computer (14), switch (15), camera (7) and display (11) electric connection, switch (15) are through electric wire (13) and electric contact point (24) electric connection who bears tray (17), PC main control computer (14) are through electric wire (13) and display (11) communication connection, camera (7) are through electric wire (13) and PC main control computer (14) communication connection.

The bottom parts of the buckle (21), the plastic plate (23) and the support plate (26) are fixedly provided with limiting plates which are respectively connected with the buckle groove (19), the electric contact point groove (22) and the support plate groove (25) in a clamping manner.

At least four groups of springs (20) in the supporting plate groove (25) are respectively positioned at four corners of the supporting plate (26).

The invention has the technical effects and advantages that:

1. the detection method provided by the invention can effectively carry out comprehensive detection on the overall performance and parameters of the PCB of the LED array white light communication without detecting an independent LED, thereby greatly improving the efficiency of LED lamp detection; the LEDs in the LED array PCB can emit visible light such as white light, blue light, red light and the like, can be detected, and have wide application range and good accuracy;

2. the detection method provided by the invention adopts the fixed clamping of the bearing tray to catch the LED array white light communication PCB circuit board, the LED array white light communication PCB circuit board is switched on through the elastic electric contact points, the display color and the brightness of the LED lamp groups are controlled through the keys, and when the lamp groups are in multiple paths, the lamp groups are respectively switched on and off, so that the grouping and shunting tests can be realized to judge the fault position and reason;

3. the detection device provided by the invention is simple and convenient to operate, the test device is convenient to install, the LED array white light communication PCB circuit board is fixed by the elastic clamping hook, the supporting plate is arranged at the bottom of the tray, the lamp can be directly placed in the tray at the top when the clamping buckle is opened, the connecting rod of the camera is fixed by the bolt, and the adjustment and the fixation can be convenient;

4. the detection method and the device provided by the invention take pictures through the camera, then detect whether the LED array white light communication PCB circuit board is qualified or not through software image recognition and software judgment, and mark unqualified LED lamp beads on the display interface and the internal image, so that the detection structure is obvious, the observation and the accurate statistics are convenient, and the detection method and the device can be further used as a basis for analyzing faults and reasons.

5. Although the indoor visible light wireless communication technology related to the LED array PCB is still in the initial stage, the LED array PCB has great advantages and huge development potential, and a white light LED wireless optical communication system plays a very important role in a future 5G communication network. Therefore, the invention has wider application prospect.

Drawings

FIG. 1 is a schematic view of the overall configuration of the testing device of the present invention;

FIG. 2 is an enlarged sectional view of part A of the present invention;

FIG. 3 is an enlarged view of the part B of the present invention.

In the figure: the camera comprises a workbench, 2 supporting legs, 3 lifting supports, 4 sliding blocks, 5 fastening bolts, 6 sliding rods, 7 cameras, 8 cameras, 9 supporting rods, 10 mounting frames, 11 displays, 12 power control modules, 13 electric wires, 14PC main control computers, 15 power switches, 16 keys, 17 bearing trays, 18 sliding grooves, 19 buckling grooves, 20 springs, 21 buckles, 22 electric contact point grooves, 23 plastic plates, 24 electric contact points, 25 supporting plate grooves and 26 supporting plates.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the method for detecting the LED array white light communication PCB circuit board provided by the present invention comprises the following steps:

s4, channel test: starting a PC main control machine and a power supply, wherein the power supply sequentially selects multi-channel voltage, and the PC main control machine outputs different control signals to respectively adjust the brightness, color and the like of the LED array white light communication PCB circuit board; when a plurality of groups of LED array white light communication PCB circuit boards need to be tested, the power supply respectively controls the power on and off of each group of LED array white light communication PCB circuit boards; when the LED array white light communication PCB circuit board has multiple paths, each path can be tested;

The LED array white light communication PCB circuit board detection device for implementing the method comprises a PC main control machine and a CCD detection table connected with the PC main control machine, wherein ARGIVISION intelligent vision system software is arranged in the PC main control machine; the CCD detection platform comprises a workbench, a CCD device, a field display and a power supply of an LED array white light communication PCB circuit board.

The CCD detection table comprises a workbench 1; a lifting support 3 is fixedly welded on one side of the upper part of the workbench 1, a slide block 4 is movably connected onto the lifting support 3 through a fastening bolt 5, a slide rod 6 is also movably connected onto the slide block 4 through the fastening bolt 5, a camera 7 is also movably connected onto the slide rod 6 through the fastening bolt 5, a camera 8 is fixedly arranged at the bottom of the camera 7, and the camera 7 can be conveniently adjusted by setting the lifting support 3 and the slide rod 6 at the position, so that the camera 7 can shoot a clear picture of the LED array white light communication PCB, and the picture can be conveniently judged and calculated by a PC main control computer 14 and ARGIVISION intelligent vision system software; a supporting rod 9 is fixedly welded on the rear side edge of the workbench 1, an installation frame 10 is fixedly arranged at the upper part of the supporting rod 9, a display 11 is fixedly installed on the installation frame 10, and the display 11 is fixed by the installation frame 10 at the position so as to be convenient for observation of workers; the workbench 1 is provided with a power switch 15, a bearing tray 17 and a power control module 12, the power switch 15 is movably provided with a key 16, and the power switch 15 and the key 16 at the position can control the connection of the power control module 12 and the selection of a circuit; bear the both sides top of tray 17 and be equipped with buckle groove 19, the inside fixedly connected with spring 20 in buckle groove 19, the top fixedly connected with buckle 21 of spring 20, electric contact point groove 22 has been seted up to buckle groove 19's lower part, through spring 20 fixedly connected with plastic board 23 in the electric contact point groove 22, fixedly connected with electric contact point 24 on the plastic board 23, the bottom of bearing tray 17 is equipped with backup pad groove 25, spring 20 fixedly connected with backup pad 26 is passed through to backup pad groove 25 inside, what the tray 17 was born in this department sets for can be stable fixes LED array white light communication PCB circuit board, and the electric contact point 24 that spring 20 connects can prevent LED array white light communication PCB circuit board circular telegram contact failure.

Preferably, four groups of supporting legs 2 are fixedly welded at the bottom of the workbench 1, the four groups of supporting legs 2 are respectively positioned at four corners of the workbench 1, and a PC main control computer 14 is arranged at the lower part of the workbench 1.

Through the technical scheme, the supporting legs 2 at the position can support and keep the balance of the workbench 1, and the PC main control computer 14 can process images.

Preferably, the middle of the lifting support 3 is provided with a sliding groove 18, the sliding block 4 is arranged to be E-shaped, the sliding block 4 is connected to the lifting support 3 in a clamped mode, one side of the sliding block 4 is connected with a fastening bolt 5 in a threaded mode, and the fastening bolt 5 is attached to one side wall of the lifting support 3.

Through above-mentioned technical scheme, the setting of slider 4 of this department can the joint in lifting support 3 is inside, and the setting of fastening bolt 5 can be stable with slider 4 fixed on lifting support 3.

Preferably, the power control module 12 is connected to the utility power and is electrically connected to the PC main controller 14, the power switch 15, the camera 7 and the display 11 through wires 13, the power switch 15 is electrically connected to the electrical contact point 24 of the carrying tray 17 through the wire 13, the PC main controller 14 is in communication connection with the display 11 through the wire 13, and the camera 7 is in communication connection with the PC main controller 14 through the wire 13.

Through the technical scheme, the electric wires 13 connect the electronic devices. So that the whole system can be operated.

Preferably, the bottom of the clip 21, the plastic plate 23 and the supporting plate 26 is fixedly provided with a limiting plate which is respectively connected with the clip groove 19, the electrical contact groove 22 and the supporting plate groove 25 in a clamping manner, and at least four groups of springs 20 in the supporting plate groove 25 are respectively positioned at four corners of the supporting plate 26.

Through the technical scheme, the limit plate is set to prevent the buckle 21, the plastic plate 23 and the support plate 26 from being displaced and separated under the elastic action of the spring 20, and the support plate 26 can be effectively supported by the spring 20 under the support plate 26, and the balance of the support plate 26 is kept.

The method comprises the following specific operation steps:

firstly, placing an LED array white light communication PCB circuit board, placing the LED array white light communication PCB circuit board on a bearing tray 17, enabling the LED array white light communication PCB circuit board to press a supporting plate 26 downwards, enabling a buckle 21 to be movably clamped above the LED array white light communication PCB circuit board under the elastic action of a spring 20, enabling an electric contact point 24 to be electrically connected with a wiring terminal of the LED array white light communication PCB circuit board under the elastic action of the spring 20, and then switching on a power supply control module 12 to enable the whole system to start to switch on a power supply;

secondly, adjusting, namely moving the camera 7 to the left and right on the sliding rod 6, so that the picture of the LED array white light communication PCB circuit board shot by the camera 8 is displayed in the middle of the display 11, fixing the camera 7 on the sliding rod 6 through the fastening bolt 5, then adjusting the sliding block 4 on the lifting support 3 up and down, so that the camera 8 can shoot the clearest picture of the LED array white light communication PCB circuit board, and then fixing the sliding block 4 on the lifting support 3 through the fastening bolt 5;

thirdly, starting equipment detection, namely, switching on a power supply through a key 16 on a power switch 15, enabling the power supply to select multi-channel voltage to adjust the brightness of the LED array white light communication PCB, and respectively controlling the power on and off of the LED array white light communication PCB when a plurality of groups of LED array white light communication PCB are required to be tested;

fourthly, displaying, namely shooting a clear picture of the LED array white light communication PCB circuit board through a camera 8 during detection, transmitting the picture to a PC main control computer 14 through a communication protocol between a camera 7 and the PC main control computer 14, and displaying the picture on a display 11;

step five, CCD shooting: the CCD camera shoots a plurality of groups of clear pictures or video signals of the LED array white light communication PCB circuit board in a power-on and power-off state, and then transmits the pictures or the video signals to the PC main control computer, and the pictures or the videos shot in real time are synchronously displayed on the field display;

and sixthly, judging by the PC main control machine: the PC main control computer judges whether the ARGIVISION intelligent vision system software is passed through, analyzes and processes the received photo or video signal, and outputs the result on a visual interface of the built-in software of the PC main control computer, wherein the visual interface comprises the quantity, color temperature and frequency parameters of the LEDs forming the array, when the requirement of the preset parameters is met, PASS is displayed to be passed, and when the requirement of the preset parameters is not met, NG is displayed not to be passed; the result is synchronously displayed on the field display;

the method comprises the steps that firstly, a PC main control computer 14 carries out variable setting, communication setting, voice setting, display setting, system setting and the like on the system, and various parameters of the system are set to be various parameters suitable for an LED array white light communication PCB circuit board; then setting various calibrations, establishing the relation between the image pixel size and the actual size, and establishing the mapping relation between an image coordinate system and a target coordinate system; then collecting an image, marking, judging, calculating and the like the image, and outputting and displaying the image;

seventh step, result statistics: the PC main control computer automatically counts and records the detection result of each LED parameter on the tested LED array white light communication PCB circuit board, and records the parameter and coordinate position information of unqualified LEDs;

eighth step, analyzing the regularity of the result: and repeating the steps S2-S7 to finish testing the white light communication PCB circuit boards of a processing batch, regularly analyzing the parameters and the coordinate position information of unqualified LEDs by the PC main control computer, and outputting a reference scheme for designing the PCB circuit boards or improving the manufacturing process.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A detection method of an LED array white light communication PCB circuit board is characterized in that: the method comprises the following steps:

2. The method for detecting the LED array white light communication PCB circuit board as claimed in claim 1, wherein the method comprises the following steps:

3. The method for detecting the LED array white light communication PCB circuit board as claimed in claim 1, wherein the method comprises the following steps:

4. An LED array white light communication PCB circuit board detection device for implementing the method of any one of claims 1 to 3, which is characterized by comprising a PC main control computer and a CCD detection table connected with the PC main control computer, wherein ARGIVISION intelligent vision system software is arranged in the PC main control computer; the CCD detection platform comprises a workbench, a CCD device, a field display and a power supply of an LED array white light communication PCB circuit board.

5. The LED array white light communication PCB circuit board detection device of claim 1, the CCD detection platform comprises a workbench (1), and is characterized in that: the automatic monitoring device is characterized in that a lifting support (3) is fixedly welded on one side of the upper portion of the workbench (1), a slider (4) is movably connected onto the lifting support (3) through a fastening bolt (5), a sliding rod (6) is also movably connected onto the slider (4) through a fastening bolt (5), a camera (7) is also movably connected onto the sliding rod (6) through the fastening bolt (5), a camera (8) is fixedly arranged at the bottom of the camera (7), a supporting rod (9) is fixedly welded on the rear side edge of the workbench (1), a mounting frame (10) is fixedly arranged on the upper portion of the supporting rod (9), a display (11) is fixedly mounted on the mounting frame (10), a power switch (15), a bearing tray (17) and a power control module (12) are arranged on the workbench (1), and a key (16) is movably arranged on the power switch (15), bear both sides top of tray (17) and be equipped with buckle groove (19), the inside fixedly connected with spring (20) in buckle groove (19), top fixedly connected with buckle (21) of spring (20), electric contact point groove (22) have been seted up to the lower part in buckle groove (19), through spring (20) fixedly connected with plastic board (23) in electric contact point groove (22), fixedly connected with electric contact point (24) are gone up in plastic board (23), the bottom of bearing tray (17) is equipped with backup pad groove (25), inside spring (20) fixedly connected with backup pad (26) of passing through of backup pad groove (25).

6. The LED array white light communication PCB circuit board detection device of claim 5, wherein: the bottom fixed welding of workstation (1) has four groups landing legs (2), four groups landing leg (2) are in the four corners department of workstation (1) respectively, the lower part of workstation (1) is equipped with PC main control computer (14).

7. The LED array white light communication PCB circuit board detection device of claim 5, wherein: the middle of lifting support (3) is equipped with spout (18), slider (4) set to the E type, and slider (4) joint is on lifting support (3), one side threaded connection of slider (4) has fastening bolt (5), fastening bolt (5) laminating is on a lateral wall of lifting support (3).

8. The LED array white light communication PCB circuit board detection device of claim 5, wherein: the utility model discloses a PC main control computer, including power control module (12), PC main control computer (14), switch (15), camera (7) and display (11), power control module (12) are connected the commercial power, and through electric wire (13) respectively with PC main control computer (14), switch (15), camera (7) and display (11) electric connection, switch (15) are through electric wire (13) and electric contact point (24) electric connection who bears tray (17), PC main control computer (14) are through electric wire (13) and display (11) communication connection, camera (7) are through electric wire (13) and PC main control computer (14) communication connection.

9. The LED array white light communication PCB circuit board detection device of claim 5, wherein: the bottom parts of the buckle (21), the plastic plate (23) and the support plate (26) are fixedly provided with limiting plates which are respectively connected with the buckle groove (19), the electric contact point groove (22) and the support plate groove (25) in a clamping manner.

10. The LED array white light communication PCB circuit board detection device of claim 9, wherein: at least four groups of springs (20) in the supporting plate groove (25) are respectively positioned at four corners of the supporting plate (26).