CN112394068A - Intelligent detection device and detection method for material distribution - Google Patents
Intelligent detection device and detection method for material distribution Download PDFInfo
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- CN112394068A CN112394068A CN202011329654.0A CN202011329654A CN112394068A CN 112394068 A CN112394068 A CN 112394068A CN 202011329654 A CN202011329654 A CN 202011329654A CN 112394068 A CN112394068 A CN 112394068A
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- 239000000463 material Substances 0.000 title claims abstract description 227
- 238000009826 distribution Methods 0.000 title claims abstract description 97
- 238000001514 detection method Methods 0.000 title claims abstract description 96
- 238000011179 visual inspection Methods 0.000 claims abstract description 13
- 238000007689 inspection Methods 0.000 claims abstract description 5
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- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
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Abstract
本发明公开了一种物料配送智能检测装置及检测方法，所述装置包括：输送线组件，所述输送线组件包括人工配送工位和视觉检测工位。物料架组件，其设置在所述输送线组件中的所述人工配送工位上。检测组件，其设置在所述输送线组件中的所述视觉检测工位上。所述物料组件用于根据装载需求装载待检测物料，所述输送线组件用于将所述待检测物料传送给所述检测组件。所述检测组件用于对所述待检测物料进行检测，得到检测结果。本发明解决了人工检测工作量大、效率低的问题。
The invention discloses an intelligent detection device and a detection method for material distribution. The device includes a conveying line assembly, and the conveying line assembly includes a manual distribution station and a visual inspection station. A material rack assembly, which is arranged on the manual distribution station in the conveying line assembly. an inspection assembly, which is arranged on the visual inspection station in the conveying line assembly. The material component is used to load the material to be detected according to the loading requirement, and the conveying line component is used to transmit the material to be detected to the detection component. The detection component is used to detect the material to be detected to obtain a detection result. The invention solves the problems of large workload and low efficiency of manual detection.
Description
Technical Field
The invention relates to the technical field of material distribution, in particular to an intelligent detection device and a detection method for material distribution.
Background
At present, the operation mode of material selection and distribution is relatively extensive, and the following problems exist due to the lack of an automatic and informatization management means: firstly, because basic characteristics such as bolt specification, appearance, size and gasket kind and quantity loaded all have the difference, need lean on the artifical bolt and the gasket of corresponding letter sorting and loading different specifications, intensity of labour is big. Secondly, in the manual matching operation process, the placing is more or less, the placing is staggered, the specification and the model are selected in a wrong way or reversed, a large amount of time is spent for carefully checking after the loading is finished, the operation efficiency is low, and the requirement of the future maintenance task is difficult to meet. And thirdly, the logistics is transported and circulated by a forklift or a traveling crane, the material distribution information is manually filled by paper, and an informationized and streamlined management means and an automatic and intelligent logistics mode are lacked.
The prior art mainly comprises the steps of manually detecting whether the bolt is neglected to be installed or not, and detecting whether the bolt is mistakenly installed or not after the bolt is completely installed at a fixed station. Due to the fact that the bolts and the gaskets are various and complicated, the bolts and the gaskets are easy to misplace and reverse, and the bolts and the gaskets need to be carefully checked after loading is completed, manual detection is low in operation efficiency, and mistakes are easy to make.
Disclosure of Invention
The invention aims to provide an intelligent detection device and a detection method for material distribution, which are used for material distribution and intelligent detection and solve the problems of large workload and low efficiency of manual detection.
In order to solve the above problems, the present invention is realized by the following technical scheme:
a material delivery intellectual detection system device includes: a conveyor line assembly including a manual dispensing station and a visual inspection station. A material rack assembly disposed on the manual distribution station in the conveyor line assembly. A detection assembly disposed on the visual detection station in the conveyor line assembly. The material assembly is used for loading materials to be detected according to loading requirements, and the conveying line assembly is used for conveying the materials to be detected to the detection assembly. The detection assembly is used for detecting the material to be detected to obtain a detection result.
Preferably, the conveyor line assembly comprises: the detection device comprises a skeleton platform 101 and a conveyor belt assembly 102, wherein the conveyor belt assembly 102 is arranged on the skeleton platform 101 and is used for conveying the material to be detected to the detection assembly. And a motor assembly 103 disposed on the gantry 101 and connected to the conveyor belt assembly 102 for providing a driving force to the conveyor belt assembly 102.
Preferably, the conveyor line assembly further comprises: and the blocking cylinder 104 is arranged on the framework table 101, is positioned on the side edge of the conveyor belt assembly 102, and is used for limiting the material to be detected.
Preferably, the robot further comprises a button box 105, wherein the button box 105 is arranged on the gantry 101, and the button box 105 comprises an equipment emergency stop button and a release button, and the equipment emergency stop button is used for controlling the stop of the motor assembly 103; the release button is used for controlling the retraction of the blocking cylinder 104, so that the material to be detected flows to the detection assembly.
Preferably, the material rack assembly comprises: and the placing frame 201 is arranged on the skeleton platform 101 and is positioned at the manual distribution station. A plurality of material boxes 202 containing materials, wherein each material box 202 is correspondingly placed on the placing rack 201. Each material box 202 is provided with a photoelectric switch 203 on the top and a reflecting plate 207 on the bottom. A button 205 with a lamp is arranged below each material box 202. An operating system 206 installed on the side of the rack 201, the operating system being connected to each of the photoelectric switches 203 and each of the lighted buttons 205. The operating system 206 is configured to automatically match a corresponding material box according to a selected material model, so that an indicator light of the lighted button 205 corresponding to the matched material box 202 is turned on to direct material taking.
Preferably, the optoelectronic switch 203 is a reflective optoelectronic switch, and includes a transmitter and a receiver; used in cooperation with the reflection plate 207. When a material taking action is executed, a hand is extended into the material box 202, light emitted by the emitter of the photoelectric switch 203 is shielded, a material taking signal is triggered and sent to the operating system 206, and the taken material is assembled on the material distribution plate 310 on the conveyor belt assembly 102, so that material taking is completed.
Preferably, the detection assembly comprises: one end of the support frame 301 is arranged on the skeleton platform 101 and is positioned at the visual detection station; two sets of three-dimensional cameras 305 arranged oppositely, wherein one of the three-dimensional cameras 305 is arranged at one end of the support frame 301 far away from the skeleton platform 101; the other three-dimensional camera 305 is arranged at one end of the support frame 301 close to the scaffold block 101.
And the lifting clamping mechanism 306 is installed on the framework table 101 at the visual detection station and used for fixing the material distribution plate and lifting the material distribution plate to a preset position. And
an image recognition system connected to the two sets of three-dimensional cameras 305. The three-dimensional camera 305 is configured to capture all feature records of the upper and lower surfaces of the material distribution plate, obtain image graphic information, and send the image graphic information to an image recognition system. The image recognition system is used for comparing the received image graph information with a pre-stored correct historical image, judging whether the materials to be detected on the material distribution plate have loading errors or not, and obtaining and displaying a detection result.
Preferably, the detection assembly further comprises: two sets of module holders 302, two sets of linear modules 303, and two sets of camera holders 304; one end of one of the two sets of module holders 302 is disposed at an end of the supporting frame 301 far away from the scaffold block 101. One end of the other set of module holders 302 is disposed at an end of the support frame 301 near the gantry 101. The other end of each module bracket 302 is provided with the linear module 303; the camera bracket 304 is arranged on each linear module 303. The three-dimensional camera 305 is correspondingly arranged on each camera support 304. Each of the linear modules 303 is configured to correspondingly drive the three-dimensional camera 305 to slide left and right, so as to record all features of the upper and lower surfaces of the material distribution plate 310 in the cross section of the field of view of the three-dimensional camera 305 in sequence, thereby forming the image graphic information.
On the other hand, the invention also provides an intelligent detection method for material distribution, which comprises the following steps: adopt above-mentioned material delivery intellectual detection system device to detect.
And step S1, when the materials are distributed, the model of the corresponding material is manually selected through the operating system.
And step S2, the operating system automatically matches materials according to the models, and controls an indicator lamp with a lamp button corresponding to the material box to light so as to guide material taking.
And S3, when manual material taking is carried out, when a hand is put into the material box, the light emitted by the emitter of the photoelectric switch is shielded, the material taking signal is triggered, the indicating lamp is turned off by pressing the button with the lamp, and the taken material is installed on the corresponding material distribution plate.
And S4, repeating the step S1 to the step S3 until all the materials required on the material distribution plate are installed.
And step S5, manually pressing a release button in the button box to convey the material distribution plate to a visual detection station along with the conveyor line assembly.
Step S6, lifting the material distribution plate by a lifting clamping mechanism, then clamping and positioning, sliding the straight line module left and right to drive two groups of three-dimensional cameras to slide left and right respectively, and linearly scanning the upper surface and the lower surface of the material distribution plate; obtaining image graphic information; and comparing the received image graph information with a pre-stored historical image by adopting an image recognition system, judging whether the material to be detected on the material distribution plate has a loading error or not, and obtaining and displaying a detection result.
Preferably, the step S5 further includes: if block that the cylinder does not let the material transfer board, then need look over whether have to take the lamp button not close through the manual work, perhaps look over whether have the material of lou getting, look over after accomplishing, the manual work pushes down and puts the button in the button box, makes the material transfer board is carried to the visual detection station.
Preferably, when the material is a bolt and a gasket, the size and the height of the bolt head on the material distribution plate are scanned through a three-dimensional camera located above the material distribution plate to obtain first image graphic information, and the first image graphic information is compared with a prestored first historical image to judge whether the bolt is wrongly installed and the gasket is not installed.
Scanning the length of the lower end of the bolt on the material distribution plate through a three-dimensional camera located below the material distribution plate to obtain second image graphic information, and comparing the second image graphic information with a prestored second historical image to judge whether the length of the bolt is wrong.
And combining the first image graph information and the second image graph information to obtain the image graph information, and comparing the image graph information with a preset historical image to judge the type of the bolt and whether the material conveying plate is short of material or not to obtain the detection result.
The invention has at least one of the following advantages:
the intelligent detection device for material delivery provided by the invention is used for material delivery and intelligent detection, and the scheme has the advantages of improving the existing detection form, performing error prevention and correction through double logics, reducing the error rate, solving the problems of large workload and low efficiency of manual detection, along with strong adaptability and good implementation effect.
The button with the lamp has a station guiding function at the manual distribution station, so that correct operation can be effectively guided, and misoperation can be reminded. The problem of can not provide clear simple and convenient suggestion or demonstration in the aspect of function use among the prior art is solved.
The visual identification station provided by the invention has a judgment function, can correctly judge whether the material loaded in the preorder has errors or not and stores records, and the visual detection provided by the invention is to use a machine to replace human eyes for measurement and judgment. The visual detection means that a machine vision product (namely an image shooting device which is divided into a CMOS (complementary metal oxide semiconductor) product and a CCD (charge coupled device) converts a shot target into an image signal, transmits the image signal to a special image processing system, and converts the image signal into a digital signal according to information such as pixel distribution, brightness, color, coordinates and the like; the image system performs various calculations on these signals to extract the features of the target, and then controls the operation of the on-site equipment according to the result of the discrimination. And storing the result (detection result) into a database for information management according to the identification result. The information can be retrieved and inquired at any time later, and a manager can know the quality condition, the yield condition and the like of the production line in a certain period of time.
Drawings
Fig. 1 is a schematic overall structural diagram of an intelligent detection device for material distribution according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a conveyor line assembly in an intelligent material distribution detection apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a material rack assembly in the intelligent detection device for material distribution according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a main visual inspection apparatus in an intelligent material distribution inspection apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a lifting clamping assembly in an intelligent material distribution detection apparatus according to an embodiment of the present invention.
Detailed Description
The following describes a material distribution intelligent detection device and a detection method according to the present invention in further detail with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
Referring to fig. 1 to 5, the present embodiment provides an intelligent detecting device for material distribution, including: a conveyor line assembly 11, said conveyor line assembly 11 comprising a manual dispensing station 10 and a visual inspection station 20. A material rack assembly 12 disposed on the manual dispensing station 10 in the conveyor line assembly 11. A detection assembly 21 disposed on the visual detection station 20 in the conveyor line assembly 11. The material rack assembly 12 is used for loading materials to be detected according to loading requirements, and the conveying line assembly 11 is used for conveying the materials to be detected to the detection assembly. The detection component 21 is used for detecting the material to be detected to obtain a detection result. And the detection result is processed by excel, and data is stored. And when the query is carried out, other operations are not influenced. The running capability is reliable and stable, and the high availability is achieved.
The conveyor line assembly 11 includes: the detection device comprises a frame table 101 and a conveyor belt assembly 102, wherein the conveyor belt assembly 102 is arranged on the frame table 101 and is used for conveying the material to be detected to the detection assembly 21. And a motor assembly 103 disposed on the gantry 101 and connected to the conveyor belt assembly 102 for providing a driving force to the conveyor belt assembly 102.
The conveyor line assembly further comprises: and the blocking cylinder 104 is arranged on the framework table 101, is positioned on the side edge of the conveyor belt assembly 102, and is used for limiting the material to be detected.
The embodiment further includes a button box 105, the button box 105 is disposed on the gantry 101, the button box 105 includes an equipment emergency stop button and a release button, and the equipment emergency stop button is used for controlling the stop of the motor assembly 103; the release button is used for controlling the retraction of the blocking cylinder 104, so that the material to be detected flows to the detection assembly.
The material frame assembly comprises: and the placing frame 201 is arranged on the skeleton platform 101 and is positioned at the manual distribution station. A plurality of material boxes 202 containing materials, wherein each material box 202 is correspondingly placed on the placing rack 201. Each material box 202 is provided with a photoelectric switch 203 on the top and a reflecting plate 207 on the bottom. A button 205 with a lamp is arranged below each material box 202. An operating system 206 installed on the side of the rack 201, the operating system being connected to each of the photoelectric switches 203 and each of the lighted buttons 205. The operating system 206 is configured to automatically match the corresponding material box 202 according to the selected material model, so that the indicator light of the lighted button 205 corresponding to the matched material box 202 is turned on to direct material taking. Namely, the operating system 206 is a human-computer interaction interface function, the ingredient list is preset to various models, when materials are delivered, corresponding models are manually selected, the system automatically matches the materials according to the models, and an LED indicating lamp with a lamp button above the material box 202 of the corresponding bolt gasket is turned on to guide the taking of the materials.
The optoelectronic switch 203 is a reflective optoelectronic switch, and includes a transmitter and a receiver; used in cooperation with the reflection plate 207. When a material taking action is executed, a hand is extended into the material box 202, light emitted by the emitter of the photoelectric switch 203 is shielded, a material taking signal is triggered and sent to the operating system 206, and the taken material is assembled on the material distribution plate 310 on the conveyor belt assembly 102, so that material taking is completed.
The detection assembly comprises: one end of the support frame 301 is arranged on the skeleton platform 101 and is positioned at the visual detection station; two sets of three-dimensional cameras 305 arranged oppositely, wherein one of the three-dimensional cameras 305 is arranged at one end of the support frame 301 far away from the skeleton platform 101; the other three-dimensional camera 305 is arranged at one end of the support frame 301 close to the scaffold block 101.
And the lifting clamping mechanism 306 is installed on the framework table 101 at the visual inspection station and used for fixing the material distribution plate 310 and lifting the material distribution plate 310 to a preset position.
As shown in fig. 5, the lifting and clamping mechanism 306 of the present embodiment includes a pair of lifting portions 220 and a pair of telescopic portions 221, and one end of each of the lifting portions 220 is disposed on the gantry 101 at the visual inspection station. The other end of each lifting part 220 is connected with one end of the telescopic part 221, and the other end of the telescopic part 221 is provided with a clamping part for clamping the material distribution plate 310. The lifting clamping mechanism 306 is used to adjust the position of the material dispensing plate 310 to a predetermined detection position.
An image recognition system connected to the two sets of three-dimensional cameras 305. The three-dimensional camera 305 is configured to capture all feature records of the upper and lower surfaces of the material distribution plate, obtain image graphic information, and send the image graphic information to an image recognition system. The image recognition system is used for comparing the received image graph information with a pre-stored correct historical image, judging whether the materials to be detected on the material distribution plate have loading errors or not, and obtaining and displaying a detection result.
The detection assembly further comprises: two sets of module holders 302, two sets of linear modules 303, and two sets of camera holders 304; one end of one of the two sets of module holders 302 is disposed at an end of the supporting frame 301 far away from the scaffold block 101. One end of the other set of module holders 302 is disposed at an end of the support frame 301 near the gantry 101. The other end of each module bracket 302 is provided with the linear module 303; the camera bracket 304 is arranged on each linear module 303. The three-dimensional camera 305 is correspondingly arranged on each camera support 304. Each of the linear modules 303 is configured to correspondingly drive the three-dimensional camera 305 to slide left and right, so as to record all features of the upper and lower surfaces of the material distribution plate 310 in the cross section of the field of view of the three-dimensional camera 305 in sequence, thereby forming the image graphic information.
The material to be detected is a bolt and a gasket, but is not limited thereto.
On the other hand, the invention also provides an intelligent detection method for material distribution, which comprises the following steps: adopt above-mentioned material delivery intellectual detection system device to detect.
And step S1, when the materials are distributed, the model of the corresponding material is manually selected through the operating system.
And step S2, the operating system automatically matches materials according to the models, and controls an indicator lamp with a lamp button corresponding to the material box to light so as to guide material taking.
And S3, when manual material taking is carried out, when a hand is put into the material box, the light emitted by the emitter of the photoelectric switch is shielded, the material taking signal is triggered, the indicating lamp is turned off by pressing the button with the lamp, and the taken material is installed on the corresponding material distribution plate.
And S4, repeating the step S1 to the step S3 until all the materials required on the material distribution plate are installed.
And step S5, manually pressing a release button in the button box to convey the material distribution plate to a visual detection station along with the conveyor line assembly.
Step S6, lifting the material distribution plate by a lifting clamping mechanism, then clamping and positioning, sliding the straight line module left and right to drive two groups of three-dimensional cameras to slide left and right respectively, and linearly scanning the upper surface and the lower surface of the material distribution plate; obtaining image graphic information; and comparing the received image graph information with a pre-stored historical image by adopting an image recognition system, judging whether the material to be detected on the material distribution plate has a loading error or not, and obtaining and displaying a detection result.
The step S5 further includes: if block that the cylinder does not let the material transfer board, then need look over whether have to take the lamp button not close through the manual work, perhaps look over whether have the material of lou getting, look over after accomplishing, the manual work pushes down and puts the button in the button box, makes the material transfer board is carried to the visual detection station.
When the material is a bolt and a gasket, scanning the size and the height of the bolt head on the material distribution plate through a three-dimensional camera positioned above the material distribution plate to obtain first image graphic information, and comparing the first image graphic information with a prestored first historical image to judge whether the bolt is wrongly installed and whether the gasket is neglected to be installed.
Scanning the length of the lower end of the bolt on the material distribution plate through a three-dimensional camera located below the material distribution plate to obtain second image graphic information, and comparing the second image graphic information with a prestored second historical image to judge whether the length of the bolt is wrong.
And combining the first image graph information and the second image graph information to obtain the image graph information, and comparing the image graph information with a preset historical image to judge the type of the bolt and whether the material conveying plate is short of material or not to obtain the detection result.
The intelligent material distribution detection device is used for material distribution and intelligent detection, and a man-machine cooperation operation mode is built through design and development of the intelligent material distribution detection device, so that material matching and automatic material detection are realized to form a flow production line. The intelligent detection workstation integrates automation, flexibility, intelligent instrument adopts automatic commodity circulation transportation mode, improves manual work efficiency, reduces the cost of labor, stops the manual work and loads the in-process condition of making mistakes and takes place.
The embodiment improves the existing detection form, has double logics for error prevention and correction, further reduces the error rate, solves the problems of large workload and low efficiency of manual detection, and has the advantages of strong adaptability and good implementation effect.
The button of taking the lamp that this embodiment was equipped with has the station at artifical distribution station and guides the function, can realize effectively guiding the correct operation, reminds the maloperation. In other words, the present embodiment selects a category instruction from the operating system, and matches the information of the materials to be loaded on the various material distribution plates with the indicator light and/or the photoelectric switch information segment, respectively, where the indicator light and/or the photoelectric switch information segment prompts the number name in the layer list and the selected operation corresponding to the material name; when a selection request aiming at a class instruction of the material distribution plate is received, the matched indicating lamp and/or the photoelectric switch information section are started and output, the indicating lamp of the material box needing to be loaded is lightened, all photoelectric switches are operated and identified at the same time, only if the action of taking the material is correctly sensed and is completed one by one, the system can end the current operation, and the problem that clear and simple prompt or demonstration in the aspect of function use cannot be provided in the prior art is solved.
The visual identification station provided by the embodiment has a judging function, can correctly judge whether the material loaded in the preamble has errors or not and stores records. The visual detection means that a machine vision product (namely an image shooting device which is divided into a CMOS (complementary metal oxide semiconductor) product and a CCD (charge coupled device) converts a shot target into an image signal, transmits the image signal to a special image processing system, and converts the image signal into a digital signal according to information such as pixel distribution, brightness, color, coordinates and the like; the image system performs various calculations on these signals to extract the features of the target, and then controls the operation of the on-site equipment according to the result of the discrimination. And storing the result (detection result) into a database for information management according to the identification result. The information can be retrieved and inquired at any time later, and a manager can know the quality condition, the yield condition and the like of the production line in a certain period of time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present invention, it is to be understood that the terms "center," "height," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
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