CN110596119A - Circuit board component detection device - Google Patents

Circuit board component detection device Download PDF

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Publication number
CN110596119A
CN110596119A CN201910827358.4A CN201910827358A CN110596119A CN 110596119 A CN110596119 A CN 110596119A CN 201910827358 A CN201910827358 A CN 201910827358A CN 110596119 A CN110596119 A CN 110596119A
Authority
CN
China
Prior art keywords
module
detected
detection
early warning
conveying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910827358.4A
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Chinese (zh)
Inventor
熊志航
韩定安
陈韦兆
曾亚光
王茗祎
熊红莲
麦浩基
冯俊健
肖世旭
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Foshan University
Original Assignee
Foshan University
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Filing date
Publication date
Application filed by Foshan University filed Critical Foshan University
Priority to CN201910827358.4A priority Critical patent/CN110596119A/en
Publication of CN110596119A publication Critical patent/CN110596119A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8806—Specially adapted optical and illumination features
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8901—Optical details; Scanning details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8806—Specially adapted optical and illumination features
    • G01N2021/8841—Illumination and detection on two sides of object
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques

Abstract

The invention discloses a circuit board component detection device, which comprises: the system comprises an image acquisition module, a transmission module, a light source, a first detection module, a second detection module, an early warning module, a first timer and a processing module; the conveying module is used for transmitting samples to be detected, the image acquisition module for collecting images of the samples to be detected is arranged above the conveying module, the light source is used for providing brightness for the samples to be detected, the first detection module and the second detection module are sequentially arranged along the movement direction of the conveying module on the left side or the right side of the conveying module and are all used for detecting the speed of the samples to be detected, and the early warning module is used for sending out early warning signals. According to the invention, the acceleration value of the sample to be detected is calculated by detecting the speed of the sample to be detected and the detection interval duration, the transmission condition of the detection device to the sample to be detected is fed back in time, fault detection and early warning are realized, and when the sample to be detected is not detected for a long time, the device is automatically controlled to enter the sleep state.

Description

Circuit board component detection device
Technical Field
The invention relates to the technical field of electronic element detection, in particular to a circuit board element detection device.
Background
With the continuous progress and development of modern science and technology, the electronic product has increasingly complex functions, improved performance, reduced element volume, increased density, no defects such as element deletion, offset and wrong elements in the production process of a circuit board, is beneficial to improving the detection rate, improving the product quality and the production rate, saving the cost and realizing full-automatic detection through artificial vision and image processing detection. However, the existing circuit board detection device cannot timely send out early warning when a fault occurs, and meanwhile, the circuit board cannot intelligently enter a sleep mode when no circuit board passes through for a long time.
Disclosure of Invention
The invention solves the problems that: the circuit board detection device cannot realize fault early warning and automatically control to enter the dormancy state.
The invention provides a circuit board component detection device which can realize fault detection and early warning and automatically control to enter dormancy.
The solution of the invention for solving the technical problem is as follows:
a circuit board component detection device includes: the system comprises an image acquisition module, a transmission module, a light source, a first detection module, a second detection module, an early warning module, a first timer and a processing module;
the conveying module is used for transmitting samples to be detected, the image acquisition module for gathering the images of the samples to be detected is arranged above the conveying module, the light source is used for providing illumination for the samples to be detected, the first detection module and the second detection module are sequentially arranged along the movement direction of the conveying module on the left side or the right side of the conveying module and are all used for detecting the speed of the samples to be detected, the early warning module is used for sending out early warning signals, and the first detection module, the second detection module, the image acquisition module, the conveying module, the light source, the early warning module and the first timer are all electrically connected with the processing module.
As a further improvement of the above technical solution, the first detection module includes a first infrared emitter, a first infrared receiver, and a second timer, and the second detection module includes a second infrared emitter, a second infrared receiver, and a third timer;
the first infrared transmitter and the second infrared transmitter are arranged on the left side of the transmission module, and the first infrared receiver and the second infrared receiver are arranged on the right side of the transmission module; the first infrared transmitter and the first infrared receiver are arranged oppositely, and the second infrared transmitter and the second infrared receiver are arranged oppositely.
As a further improvement of the technical scheme, the conveying module comprises a conveying belt and a motor, and the motor drives the conveying belt to move.
As a further improvement of the technical scheme, the light source is an annular LED light source, the image acquisition module is positioned above the annular LED light source, and the image acquisition module acquires the image of the sample to be detected through a through hole in the middle of the annular LED light source.
As a further improvement of the technical scheme, the early warning module comprises a buzzer or a three-color early warning lamp.
As a further improvement of the above technical solution, the image capturing module includes a color industrial camera and a zoom lens.
As a further improvement of the technical scheme, the processing module comprises an industrial personal computer.
The invention has the beneficial effects that: the invention detects the speed and the detection interval duration of the sample to be detected through the two detection modules, calculates the acceleration value of the sample to be detected, feeds back the transmission condition of the detection device to the sample to be detected in time, realizes fault detection and early warning, and automatically controls to enter the sleep state when the sample to be detected is not detected for a long time.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a schematic structural view of the present embodiment;
FIG. 2 is a top view of the structure of the present embodiment;
fig. 3 is a schematic diagram of module connection in the present embodiment.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Embodiment 1, referring to fig. 1 to 3, a circuit board component detection apparatus includes: the system comprises an image acquisition module 100, a transmission module 200, a light source 300, a first detection module 700, a second detection module 800, an early warning module 400, a first timer 500 and a processing module 600;
the utility model discloses a conveying module 200, including conveying module 200, light source 300, first detection module 700 and second detection module 800, conveying module 200 is used for the transmission to await measuring the sample, image acquisition module 100 for gathering the image of the sample that awaits measuring sets up conveying module 200's top, light source 300 is used for providing the illumination for the sample that awaits measuring, first detection module 700 and second detection module 800 set gradually along conveying module 200's direction of motion on conveying module 200's the left side or the right side, all are used for detecting the speed of the sample that awaits measuring, early warning module 400 is used for sending early warning signal, first detection module 700, second detection module 800, image acquisition module 100, conveying module 200, light source 300, early warning module 400 and first time-recorder 500 all with processing module.
The working principle of the embodiment is as follows:
when detecting circuit board components and parts, place the sample that awaits measuring on the transfer module 200, the top of transfer module 200 is provided with light source 300 and image acquisition module 100, and in the sample transmission process that awaits measuring, image acquisition module 100 gathers the image of the sample that awaits measuring to the image that obtains will be gathered sends processing module 600, light source 300 does the sample that awaits measuring provides the illumination, is favorable to gathering the more clear image of the sample that awaits measuring.
After the image of the sample to be detected is collected, the sample to be detected is sequentially detected by the first detection module 700 and the second detection module 800 at the current speed under the action of the transmission module 200, and a first speed and a second speed are respectively obtained.
First detection module 700 and second detection module 800 all set up on the lateral wall on conveying module 200 left side or right side, be equipped with the interval between first detection module 700 and the second detection module 800, work as the sample that awaits measuring passes through during first detection module 700, first detection module 700 triggers the collection the current speed of sample that awaits measuring obtains first speed, and to processing module 600 sends high level signal, processing module 600 receives control behind the high level signal that first detection module 700 sent first timer 500 begins the timing. The sample to be detected continues to move, when passing through the second detection module 800, the second detection module 800 triggers to collect the current speed of the sample to be detected, obtain a second speed, and send a high level signal to the processing module 600, the processing module 600 receives the high level signal sent by the second detection module 800 and then controls the second timer 701 to stop timing, so that the interval duration for detecting the sample to be detected by the first detection module 700 and the second detection module 800 respectively can be obtained.
The processing module 600 calculates the first speed, the second speed and the interval duration obtained by the acquisition, measures the distance between the first detection module 700 and the second detection module 800, and calculates the acceleration value of the movement of the sample to be detected. When the obtained acceleration value is negative and smaller than the preset acceleration threshold, the processing module 600 sends a high level signal to the early warning module 400, and the early warning module 400 sends an early warning signal.
The preset acceleration threshold is adjustable, and in this embodiment, the preset acceleration threshold is-2 m/s2。
When the processing module 600 does not receive the high level signal sent by the first detecting module 700 or the second detecting module 800 within the preset first time threshold, the processing module 600 controls the image capturing module 100, the transmitting module 200, the light source 300, the first detecting module 700, the second detecting module 800, the early warning module 400, and the first timer 500 to stop operating, and the detecting device enters the sleep mode. The first time threshold in this embodiment is 3 minutes.
This detection device is through two detection module to the sample to be measured speed with detect interval length gather, can judge whether the acceleration of the sample to be measured changes, can judge from this whether conveying module 200 breaks down, effectively early warning in advance, this device can be used on other conveyer belts simultaneously for whether the detection conveying module 200 breaks down, the application is stronger.
When the detection device does not detect a sample to be detected for a long time, the device enters a sleep mode, and the consumption of energy is effectively reduced.
Further as a preferred embodiment, the first detection module 700 comprises a first infrared transmitter 703, a first infrared receiver 702 and a second timer 701, and the second detection module 800 comprises a second infrared transmitter 803, a second infrared receiver 802 and a third timer 801;
the first infrared transmitter 703, the first infrared receiver 702 and the second timer 701 are all electrically connected to the processing module 600, and the second infrared transmitter 803, the second infrared receiver 802 and the third timer 801 are all electrically connected to the processing module 600.
The first infrared transmitter 703 and the second infrared transmitter 803 are both arranged on the left side of the transmission module 200, and the first infrared receiver 702 and the second infrared receiver 802 are both arranged on the right side of the transmission module 200; the first infrared transmitter 703 is disposed opposite to the first infrared receiver 702, and the second infrared transmitter 803 is disposed opposite to the second infrared receiver 802. The first infrared receiver 702, the second infrared receiver 802, the second timer 701 and the third timer 801 are all electrically connected to the processing module 600.
The output end of the first infrared transmitter 703 is opposite to the structure end of the first infrared receiver 702, and the output end of the second infrared transmitter 803 is opposite to the structure end of the second infrared receiver 802. The sample to be detected passes through the area between the first infrared transmitter 703 and the second infrared receiver 802 under the effect of the transmission module 200, the infrared ray sent by the first infrared transmitter 703 is shielded by the sample to be detected, then the first infrared receiver 702 does not receive the infrared ray, then the first infrared receiver 702 sends a high level signal to the processing module 600, the processing module 600 receives the high level signal and then controls the second timer 701 to start timing, when the sample to be detected no longer blocks the infrared ray sent by the first infrared transmitter 703, the first infrared receiver 702 sends a low level signal to the processing module 600, and the processing module 600 receives the low level signal and then controls the second timer 701 to stop timing to obtain first detection time. And calculating the speed of the sample to be detected passing through the first detection module 700 according to the first detection time and the size of the sample to be detected to obtain a first speed.
Similarly, the speed of the sample to be detected passing through the second detection module 800 can be obtained through the second infrared transmitter 803, the second infrared receiver 802 and the third timer 801, so as to obtain a second speed.
When the processing module 600 receives a high level signal sent by the first infrared receiver 702, the processing module 600 controls the first timer 500 to start timing, and when the processing module 600 receives a low level signal sent by the second infrared receiver 802, the processing module 600 controls the first timer 500 to stop timing. The first timer 500 may obtain the time interval between the first detection module 700 and the second detection module 800 for detecting the sample to be detected respectively.
When the processing module 600 does not receive the high level signal sent by the first infrared receiver 702 or the second infrared receiver 802 within the preset second time threshold, the processing module 600 controls the image capturing module 100, the transmitting module 200, the light source 300, the first detecting module 700, the second detecting module 800, the early warning module 400, and the first timer 500 to stop operating, and the detecting device enters the sleep mode. The second time threshold in this embodiment is 3 minutes.
By detecting the response of the first detection module 700 and the second detection module 800 to detect the sample to be detected, when the detection signal of the sample to be detected cannot be detected for a long time, the control device performs a sleep state, which is beneficial to automation control and improves the resource utilization rate.
Further as a preferred embodiment, the conveying module 200 includes a conveyor belt 201 and a motor 202, and the motor 202 drives the conveyor belt 201 to move.
The motor 202 controls the direction and speed of the conveyor belt 201 through its own rotating end.
Further as a preferred embodiment, the light source 300 is an annular LED light source 300, the image acquisition module 100 is located above the annular LED light source 300, and the image acquisition module 100 acquires the image of the sample to be measured through a through hole in the middle of the annular LED light source 300.
The LED light source 300 not only saves energy and has low heat, but also has high luminous efficiency and strong anti-interference performance, provides uniform and stable illumination for a sample to be detected, and ensures the uniformity of detection standards.
Further as a preferred embodiment, the early warning module 400 includes a buzzer or a three-color early warning lamp.
When the transmission speed of the sample to be detected is found to be changed and the acceleration is smaller than the acceleration threshold, it is determined that the transmission module 200 may fail, and the processing module 600 controls the early warning module 400 to send out an early warning signal to reflect the failure of the detection device in time.
Further as a preferred embodiment, the image capturing module 100 includes a color industrial camera and a zoom lens.
Further, as a preferred embodiment, the processing module 600 includes an industrial personal computer.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.

Claims (7)

1. A circuit board component detection device, comprising: the system comprises an image acquisition module, a transmission module, a light source, a first detection module, a second detection module, an early warning module, a first timer and a processing module;
the conveying module is used for transmitting samples to be detected, the image acquisition module for collecting images of the samples to be detected is arranged above the conveying module, the first detection module and the second detection module are sequentially arranged along the movement direction of the conveying module on the left side or the right side of the conveying module and are all used for detecting the speed of the samples to be detected, the early warning module is used for sending out early warning signals, and the first detection module, the second detection module, the image acquisition module, the conveying module, the light source, the early warning module and the first timer are all electrically connected with the processing module.
2. The device for detecting the components of the circuit board as claimed in claim 1, wherein: the first detection module comprises a first infrared transmitter, a first infrared receiver and a second timer, and the second detection module comprises a second infrared transmitter, a second infrared receiver and a third timer;
the first infrared transmitter and the second infrared transmitter are arranged on the left side of the transmission module, and the first infrared receiver and the second infrared receiver are arranged on the right side of the transmission module; the first infrared transmitter and the first infrared receiver are arranged oppositely, and the second infrared transmitter and the second infrared receiver are arranged oppositely.
3. The device for detecting the components of the circuit board as claimed in claim 1, wherein: the conveying module comprises a conveying belt and a motor, and the motor drives the conveying belt to move.
4. The device for detecting the components of the circuit board as claimed in claim 1, wherein: the light source is an annular LED light source, the image acquisition module is located above the annular LED light source, and the image acquisition module acquires the image of the sample to be detected through a through hole in the middle of the annular LED light source.
5. The device for detecting the components of the circuit board as claimed in claim 1, wherein: the early warning module comprises a buzzer or a three-color early warning lamp.
6. The device for detecting the components of the circuit board as claimed in claim 1, wherein: the image acquisition module comprises a color industrial camera and a zoom lens.
7. The device for detecting the components of the circuit board as claimed in claim 1, wherein: the processing module comprises an industrial personal computer.
CN201910827358.4A 2019-09-03 2019-09-03 Circuit board component detection device Pending CN110596119A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201910827358.4A CN110596119A (en) 2019-09-03 2019-09-03 Circuit board component detection device

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CN110082555A (en) * 2019-04-30 2019-08-02 杭州电子科技大学 Vehicle driving acceleration measurement method based on single-chip microcontroller and twin-channel laser
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2625902Y (en) * 2003-05-08 2004-07-14 中国科学院安徽光学精密机械研究所 Novel roadside automobile speed measuring instrument
CN2903990Y (en) * 2006-05-11 2007-05-23 安徽宝龙环保科技有限公司 Speed measurer for motor vehicle
CN103180231A (en) * 2010-11-02 2013-06-26 莱特拉姆有限责任公司 Conveyor system, belt, and method using accelerometers
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CN110082555A (en) * 2019-04-30 2019-08-02 杭州电子科技大学 Vehicle driving acceleration measurement method based on single-chip microcontroller and twin-channel laser
CN211014042U (en) * 2019-09-03 2020-07-14 佛山科学技术学院 Circuit board component detection device

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