CN202522205U - Assembly line driving chain detection device - Google Patents
Assembly line driving chain detection device Download PDFInfo
- Publication number
- CN202522205U CN202522205U CN2011205281287U CN201120528128U CN202522205U CN 202522205 U CN202522205 U CN 202522205U CN 2011205281287 U CN2011205281287 U CN 2011205281287U CN 201120528128 U CN201120528128 U CN 201120528128U CN 202522205 U CN202522205 U CN 202522205U
- Authority
- CN
- China
- Prior art keywords
- chain
- driving
- signal
- chain link
- optical imaging
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present utility model provides an automatic digital detection method and a device of an assembly line driving chain, and the driving chain on-line detection method and the device are quantitative, precise and practical. The detection device comprises an optical imaging device, a line-selecting and shooting trigger signal generating device, an picture signal processing device and a measuring data storage and analysis part, a man-machine interaction device and a measuring auxiliary part, an alarm processing part and a driving motor remote positioning control part, and a power supply. The method and the device are used for detecting an assembly line driving chain. Quantitative measurement of deformation of a chain link pitch of the driving chain can be realized, practicality, accuracy and repetition of the above measurement can be realized, an analysis report can be given out according to measured data, and prevention and processing can be made about quality problems of chain links of the driving chain.
Description
Technical field
The present invention relates generally to the rejecting of the online automatic detection of streamline driving-chain (chain link pitch deformation quantity), overproof chain link and to the work of the aspects such as analyses and prediction of driving-chain safety, refers in particular to a kind of automatic testing method and device of streamline driving-chain.
Background technology
In the prior art, production line is widely used, and the form of streamline transmission mainly contains: transmission chain line, friction line, sled line, adhesive tape line etc. are multiple.Wherein, driving-chain mainly is applicable to large-scale assembling industry, for example: in the automobile industry, assembling of the assembling of vehicle complete vehicle, the assembling of motor car engine, automobile gearbox or the like.
Owing in the assembling process of these Heavy Product,, can cause the link wear of driving-chain to the weight of driving-chain; For a streamline, several thousand chain links are arranged, as long as wherein there is a joint to break off; Will the generation accident, thus the whole production workshop is quit work, bring about great losses to factory.
The destruction of causing to production for the wearing and tearing of avoiding because of the streamline driving-chain; If can detect the wear condition of chain link in real time; Particularly the quantitative wear data of problem chain link then can be replaced in time and decreased chain link, avoids causing because of the wear problem of chain link the serious consequence of production line shut-down.
At present, to the detection of production line driving-chain,, lack practical quantitative identification means for the driving-chain quality that different suppliers provide.In the prior art,, mainly be to be equipped with the professional to estimate the driving-chain situation to the driving-chain detection method, since the limitation of human eye, the chain link of can not completely comprehensively pinpointing the problems.Be equipped with the maintainer and detect the problem chain link, detect, arrange the maintainer to detect chain link, can only size be rejected above the chain link of hypercard plate, and can't solve the detection by quantitative problem of driving-chain with clamp through stopping production.In the prior art; Also have a kind of employing photoelectric tube to detect, it mainly is to adopt two pairs of photoelectric tubes, forms the method for a light chi; Replace clamp above-mentioned to detect; Use clamp relatively, solved use and maintenance personnel's manpower waste, avoided stopping the inconvenience that streamline detects driving-chain.But it is big that this detection means has deviation, and poor repeatability can't obtain quantitative defectives such as measurement result.Above-mentioned two kinds of detection methods all lack effective detection chain link or driving-chain quantitative data function.
Summary of the invention
The purpose of this invention is to provide a kind of automatic testing method and device thereof to the streamline driving-chain; Through detection by quantitative to the deformation quantity of driving-chain chain link; Solve the detection by quantitative problem of driving-chain driving-chain, realize link wear degree analyzing and prediction, and make early warning.
To achieve these goals; The utility model provides a kind of driving-chain pick-up unit, comprises optical imaging device 11 and 12, choosing row and takes flip flop equipment 2, human-computer interaction device 3, master controller 4, digital signal processing device 5, data storage and processing subsystem 6, measurement servicing unit 7, warning device 8, driving-chain motor position control device 9; It is characterized in that: said optical imaging device (11,12) comprises driver module (111,121), optical module (112,122) and imageing sensor (113,123); Two optical imaging devices are used in pairs; Form two optical imaging systems; Be used to generate the image field of driving-chain chain link, and receiving under the situation of instruction, take the image of current driving-chain chain link; Said choosing row and shooting flip flop equipment 2 are by selecting luggage to put (21,22) and choosing row signal Processing and shooting flip flop equipment 23 formations; Be used for the capable signal of image field that optical imaging device (11,12) generates is selected that delegation's vision signal of pressing close to this chain link height center line most; Through calculating the shooting trigger signals that generates camera system, this signal will notify optical imaging device (11,12) to take the image of current driving-chain chain link; Wherein, described two are selected luggage to put to be used, to be used to receive the image line signal that is transmitted by imageing sensor, see the capable signal of pressing close to most off and give choosing row signal Processing and take flip flop equipment; Said choosing row signal Processing and flip flop equipment 23 receive that two are selected luggage to put after the signal that (21,22) send, and calculate the shooting trigger signals of back generation system; Said human-computer interaction device 3 is used to import data and steering order, and video data and running status; Said master controller 4 (MCU) is used to control the flow process of this pick-up unit, and participates in computing; Said digital signal processing device 5 is used to carry out the comparison and calculating of photographic images, and draws the detection data of deformation quantity; Said data storage and processing subsystem 6 comprise storer, are installed on database and DAS on the pc machine, are used for preserving detection data, processing and analysis detecting data; Said DAS and said database are installed on the external PC, can analysis detecting data and provide test analysis report; Said test analysis report comprises the space distribution curve of deformation quantity, can obtain mean value, the maximal value of deformation quantity intuitively; The statistical distribution curve, the quantity of each distributed area of statistics chain link deformation has helped the distribution situation of driving-chain chain link distortion instantly; Time distribution curve, the time dependent trend of chain link, aid forecasting;
Said measurement servicing unit 7 comprises the terminal detector 74 of background light device 71, laser locator (72,73) and transmission first-in-chain(FIC), and said laser locator (72,73) cooperatively interacts, and is used for measuring the preceding adjustment of beginning main frame height; Beginning and end that said transmission first-in-chain(FIC) end detector 74 is used for and confirms to measure.
Said human-computer interaction device 3 can adopt touch-screen or Keyboard Control panel;
Said warning device 8 is used for the problem chain link spraying mark to being worn.
Said driving-chain motor position control device 9 is used to control stopping of driving-chain motor, makes to be coated with underlined problem chain link and to stop at predefinedly, is convenient for changing the position of problem chain link.
Said background light device 71 is used to the background illumination that provides testing environment required.
Said each ingredient on being installed on PC DAS and database and driving-chain motor control assembly 9 control end far away 93, remainder is formed Test Host.
The present invention has realized the quantitative measurment of driving-chain chain link pitch deformation quantity, and has realized practicality, accuracy and the repeatability of above-mentioned measurement, and can provide analysis report according to measurement data, is convenient to driving-chain chain link quality problems are made prevention and handled.
Description of drawings
Fig. 1 is the process flow diagram of a preferred embodiment of driving-chain detection method of the present invention;
Fig. 2 is the structural representation of a preferred embodiment of pick-up unit of the present invention;
Fig. 3 is that the luggage that selects in the preferred embodiment of pick-up unit of the present invention is put schematic diagram;
Fig. 4 is that the luggage that selects in the preferred embodiment of pick-up unit of the present invention is put operational flow diagram;
Fig. 5 is the choosing row signal Processing in this preferred embodiment of pick-up unit of the present invention and takes the flip flop equipment schematic diagram;
Fig. 6 is the choosing row signal Processing in the preferred embodiment of pick-up unit of the present invention and takes the flip flop equipment operational flow diagram;
Fig. 7 is the system's image signal processing apparatus operational flow diagram in the preferred embodiment of pick-up unit of the present invention;
Fig. 8 is the schematic diagram of driving-chain Electric Machine Control control device in the preferred embodiment of pick-up unit of the present invention;
Fig. 9 is the operational flow diagram of the driving-chain motor control assembly in this preferred embodiment of pick-up unit of the present invention;
Label declaration:
The flow process label of the operational flow diagram of accompanying drawing part starts with s, represent English sequence simply;
For example: label is 101 step, is labeled as S101 in the drawings.
Specific embodiment
For specifying technology contents of the present invention, combine accompanying drawing and embodiment that the present invention is explained as follows: pick-up unit of the present invention constitutes with being installed on database and the DAS on the PC and being installed on the control end far away that detects the outer driving-chain motor position control device of main frame by detecting main frame at present.
The detection method of streamline driving-chain wearing and tearing of the present invention is as shown in Figure 1, and it comprises following steps:
The first step (1): the detection main frame of automatic detection device is installed on the streamline to be detected, and opening initialization; This step detailed process comprises: the HALL sensor is inserted Test Host respective signal mouth; And magnet steel parts are installed on the chain link of a certain driving-chain of streamline, after these two parts form and cooperate, be mainly used in and confirm to measure beginning and finish; Can and confirm that again this cycle is whole one week of driving-chain transmission; Guarantee simultaneously in measuring process, and in the later measurement, can confirm the identity of chain link.This moment, start powered on, and utilized laser adjustment main frame height, made it to align with the center line of current streamline driving-chain to be detected.It is ready that this step is mainly further step.
Second step (2):, select test or non-test function through the options button on the control panel;
When selecting non-test function, forward step (3A) to;
When selecting test function, forward step (3B) to;
The detailed process of this step comprises: after the start of detection main frame powers on, and its display panel prompt facility options button, said function comprises test function and non-test function two big classes.When selecting test function, current streamline driving-chain is detected; When selecting non-test function, access the last time of storage in the Test Host or all previous testing result, and select test data to be uploaded to PC.Particular capacity can be stored the result who measures for 8 times by the employed memory cell decision of Test Host in the present embodiment.
The 3rd step A (3A): the detection data of inquiring about or upload the driving-chain chain link of storage;
The 3rd step B (3B): the input parameters, prepare to begin to measure;
Wherein, said parameters is the information of driving-chain to be detected, mainly comprise, the title of driving-chain, specification, model, chain speed, and can import early warning required according to the selected critical value of current tested driving-chain.The pitch deformation quantity of driving-chain reaches this critical value in the actual detected process, and then system takes alarm operation automatically, and selects further operation by the staff, as: stop driving-chain to be detected, replacing problem chain link or select to continue detection etc.After having imported parameters, start driving-chain.
The 4th step (4): after the HALL sensor detects by the head end of the driving-chain of magnet steel parts mark, will form a trigger pulse, be starting point with this chain link, detects main frame and start working;
The 5th step (5): when a certain links of driving-chain is crossed the detection main frame, detect the information that host computer using is received, judge whether to generate the trigger pip of photographic images;
If do not generate trigger pip, then continue to carry out 5;
If generate trigger pip, then forward step 6 to;
In this step, generate driving-chain chain link image field by optical imaging device (11,12).At first, select row signal Processing and flip flop equipment 23 by selecting luggage to put that delegation's vision signal of pressing close to this chain link height center line most that the capable signal of image field is selected in (21,22), sending to, choosing row signal Processing will generate shooting trigger signals with shooting flip flop equipment 23.
The 6th step (6): after receiving trigger pip; Detect main frame and take current driving-chain chain link image; And this image compared with the corresponding standard picture of its memory storage 61, calculate the deformation quantity data, and preserve these data in the memory storage 62 that detects main frame;
The 7th step (7) was detected main frame the critical value of importing in advance in the pitch deformation quantity of current driving-chain chain link and the memory storage 61 is compared;
Surpass critical value if detect data, master controller sends alerting signal, forwards step 8 to;
If do not surpass critical value, forward step 14 to;
The 8th step (8) was detected the warning part of main frame to current driving-chain chain link implementation and operation, and operation comprises that generation alerting signal, spraying color are in the problem chain link of correspondence;
(9) display screen prompting of the 9th step is by confirming according to the selection of initialization input whether needs control stops at preposition to streamline driving-chain stop motion to be detected and control problem chain link;
As need not stop driving-chain, forward step 14 to;
Stop driving-chain like needs, forward step 10 to;
The tenth step (10) was detected the nearly control end 91 of driving-chain motor positioning control of main frame and the link that driving-chain motor positioning control control end far away has a handshake communication;
Unsuccessful if shake hands, then continue to wait for;
If shake hands successfully, forward step 11 to;
The 11 step (11) was sent instruction by driving-chain motor positioning control control end 93 far away, controlled streamline driving-chain to be detected and stopped at preset maintenance position;
After the 12 step (12), problem solved at the scene, and detect the instruction that main frame receives the continuation detection,
If above-mentioned condition does not satisfy, then continue to wait for;
If above-mentioned condition satisfies, forward step 13 to;
The 13 step (13) was restarted driving-chain to be detected; And forward step 14 to;
Whether the 14 (14) HALL sensor detects by the terminal signal of the driving-chain of magnet steel parts mark;
If do not detect magnet steel parts signal, then do not accomplish the detection of whole piece driving-chain, then forward step 5 to;
If detect magnet steel parts signal, the detection of then current whole piece driving-chain is all accomplished, then forwards step 15 to;
The 15 step (15) uploading detection data are to PC; So that analysis report is analyzed and predicted and draw to the exclusive data analysis software on the PC to detecting data; The pick-up unit shutdown.
Shown in Figure 2 is a kind of preferable preferred embodiment of the pick-up unit of the utility model, comprises optical imaging device (11,12), choosing row and takes flip flop equipment 2, human-computer interaction device 3, master controller MCU 4, digital signal processing device 5, data storage and data process subsystem 6, measurement servicing unit 7, warning device 8, driving-chain motor control assembly 9.
Wherein, Said optical imaging device 11 comprises driver module 111, optical system 112, imageing sensor 113; Said optical imaging device 12 structures are identical with optical imaging device 11; Be used to be that optical imaging device 11 and optical imaging device 12 are used, utilize two optical imaging device imagings to avoid the measuring error that causes away from the primary optical axis imaging in the optical measuring system, thereby improve measuring accuracy.Generate the real-time chain link image field of driving-chain, and receiving under the situation of shooting trigger signals, take the chain link image, captured image will send digital signal processing device 5 to and handle.
Said choosing row signal Processing with take flip flop equipment 2 comprise select luggage to put 21, select that luggage puts 22, choosing row signal Processing and flip flop equipment 23; Select luggage put 21 with select luggage to put 22 to be used; In the capable signal of chain link image field that imageing sensor 113 generates, select that delegation's vision signal of the center line of pressing close to this chain link height most, deliver choosing row signal Processing and flip flop equipment.Wherein, The said luggage that selects is put 21 circuit structure referring to shown in Figure 3, and its ingredient comprises: a controller MCUi 231 (in memory RAM i is arranged), a display lcd i 232,233,5 Schmitt trigger SMTi of storer EEPROMi (A) 234A-SMTi (E) 234E, two amplifier AMPi (1) 235A-AMPi (2) 235B, a two-way switch SW Hi236 and three action button Ki (1) 237-Ki (3) 239.Auxiliary contents such as clock source, power supply are not drawn.
Each parts of this part are standard fitting, and its function is that generally personnel institute is known in this area, so do not do introduction.
The operational flow diagram of this device is as shown in Figure 4, and the variable declaration among Fig. 4 is following:
L1 and L2 are respectively the lower limit and the upper limit of selecting best line number Lm in a certain the vision signal, and this not only need consult the technical parameter of imageing sensor, and will select according to actual tested object.If it is constant that the kind of tested object is confirmed basically, the numerical value of L1 and L2 there is no need to revise.
The line number of Lt presentation video sensor one field signal (odd field or even field).
Nr is a size, because the height position of center line of some chain links on the driving-chain is for the height center line of whole piece driving-chain, its desired locations exists must fluctuation, therefore gets the numerical value that certain sample size is carried out the line number Le of calculating optimum.
The implication of variables L e: the optimum line number Lm of choosing in a chain link field signal at first, Nr corresponding Nr Lm numerical value of sample chain link then, the expectation value of sample acquisition Lm is exactly Le thus, just by select luggage to put to select line number.
Main flow process is:
S101 device power-up initializing reads correlation parameter
Whether the prompting of S102 device need reselect the numerical value of best line number Le;
If instruction is for being then to forward step S103 to;
If instruction then forwards step S116 to for not;
S103-S110 is selecting luggage to put selected optimum line number Le under 22 the assistance;
The S103 notice is selected luggage to put 22 and is transmitted the middle line signal;
Whether the S104 device receives choosing row signal Processing and the transmission shooting signal of taking flip flop equipment;
Then do not continue to wait for if receive;
Then forward step S106 to if receive;
The S105 device is caught the row that is numbered L1 for capable number;
The S106 device is caught the vision signal that L1 was expert at;
S107 guarantees that the device number of being expert at numbering is in the circulation between the L1-L2;
S108 sorts to the corresponding numerical value of the vision signal of record in circulating; This minor sort is the ordering that the row between the L1-L2 that produces to current chain link number carries out;
S109 guarantees the circulation within the number of samples;
Then proceed for accomplishing circulation;
Reach after the sample number, withdraw from circulation, forward S110 to;
S110 number averages to the best row of the single chain link gained of all chain links in the sample number Nr, and this mean value is made as the Le of whole piece driving-chain.At this moment, it is selected to select luggage to put 21 best line number value Le, will cooperate to select best line number Le to selecting luggage to put 22;
The S111 device sends signalisation and selects luggage to put 22, for it sends the middle line vision signal;
The S112 device is received and is selected luggage to put 22 answer:
Confiscate, then wait for;
Receive, then forward S113 to;
The S113 device captures the row that is numbered Lt/2;
The row that the S114 device will capture sends to the choosing row and handles and flip flop equipment 23, accomplishes the choosing row work of current chain link;
The S115 device receives that selecting luggage to put 22 accomplishes the signal that choosing is gone:
Confiscate, forward S113 to;
Receive, forward S116 to;
The S116 device captures best line number Le;
The row that is numbered Le that the S117 device will capture sends to the choosing row and handles and flip flop equipment 23, accomplishes the choosing row of current chain link;
Whether S118 receives the measurement completion signal that controller sends;
Do not receive and then continue circulation;
Receive then shutdown;
Select luggage to put 22 situation and to select luggage to put 21 similar, just both times of cooperatively interacting have successively in proper order.
The effect of said choosing row signal Processing and flip flop equipment 23: select luggage put 21 with select luggage to put under 22 the cooperation; According to the relative position of proving installation and streamline driving-chain to be tested, select that delegation's vision signal of pressing close to most intelligently with the height center line desired locations of whole piece driving-chain; Thereby provide the shooting trigger signals of whole test system.
Thus obtained trigger pip has following characteristics:
L only provides a trigger pip to each chain link;
When there is chaff interference in l when the scene, for example: the metal segments that causes after driving-chain chain link edge is worn comes off when causing the problem of additional triggers signal, can get rid of to disturb and continue to provide normal shooting trigger signals by former requirement;
The l trigger pip provides constantly just, and driving-chain is taken and measures the primary optical axis place that sensitive spot has just moved to optical system;
L trigger pip and photographic images strict synchronism have been got rid of industry spot the vibrations of asynchronous system have been disturbed.
These characteristics guaranteed each imaging all from the image field space identical RP carry out, thereby improved the accuracy of measuring and repeatability.The circuit of described choosing row signal Processing and flip flop equipment 23 is as shown in Figure 5.Its ingredient comprises: controller MCUs 251, and counter cnt s (1) 252A, counter cnt s (2) 252B, multi-way switch MPXs 253, Sheffer stroke gate 254A-254B, or door 255, with door 256, not gate 257A-257B, Schmitt trigger 258A-258E.Auxiliary contents such as clock source, power supply are not drawn.Each parts of this part are standard fitting, and its function is that generally personnel institute is known in this area, so do not do introduction.Wherein be need be when selecting luggage to put to set Le numerical value in the effect of multi-way switch, then only receives after the information of selecting nominated bank that a certain choosing row signal sends, and still can send the shooting trigger signals of system, and the process that supplies to set Le numerical value is used.Certainly, under the selected situation of Le, receive two select the information of selecting nominated bank that luggage puts after, this device just can provide shooting trigger signals, supplies complete test process use.
Fig. 6 is the operational flow diagram of choosing row signal Processing and flip flop equipment 23, and the variable declaration among the figure is following:
Ccp1 and ccp2 are two of a plurality of peripheral modules of controller MCUs on Fig. 6, and CCP1 and CCP2 are wherein one types, and its function is: (catching) Capture, (comparison) Compare, (width modulation) PWM.The module of this type has two, is respectively CCP1 and CCP2.
Its flow process mainly comprises three phases: the S201-S203 power-up initializing; S204-S210 assist to select luggage put 21 with select luggage to put 22 selected Le; S211-S214 provides the image taking trigger pip for measuring.
Concrete operational scheme is:
Data are read in the S201 initialization;
S202 surveys RA1, RA2 port signal mistiming;
S203 judges that this signal time is poor;
If within the cycle numerical value of setting, then forward step S211 to, prepare for shooting trigger signals is provided;
If outside the cycle numerical value of setting, then want help and select luggage to put selection Le numerical value in the cycle of setting, change S204;
S204 judges this difference;
If greater than setting cycle numerical value, forward step S205 to;
If less than setting cycle numerical value, forward step S208 to;
S205 assists choosing row device 2 to confirm the Le value, and the state of port RA3 is set;
S206 catches the signal of port CCP1, CCP2
S207 sends a pulse to the RA5 port, and changes RA3 port level state; Accomplish the transmission of a shooting trigger signals, the shooting that circulation gets into next chain link triggers;
S208 assists choosing row device 1 to confirm Le, and the level state of RA4 port is set;
S209 catches the signal of CCP1 CCP2;
S210 sends a pulse to the RA5 port; Change the level state of RA4 port; Accomplish a transmission of taking shooting trigger signals, the shooting that circulation gets into next chain link triggers;
S211 catches the signal of CCP1 and CCP2 because the Le numerical value that selects luggage to put at this moment is fixed;
S212 sends one to the RA0 port and takes trigger pulse;
S213 judges whether that whole testing process finishes:
If end does not forward next cyclic process to, being ready for sending is that next chain link sends trigger pip;
Finish if detect, forward S214 to;
The S214 shutdown;
Said human-computer interaction device 3 comprises input and control panel 31 display device 32, and input is the panel of input parameter and control command with control panel 31, and display device 32 can the show state data and measurement parameter etc.
Said master controller MCU 4 adopts the single-chip microcomputer that has RAM, is normal component, the flow process of major control whole detection device.
Said digital signal processing device 5 comprises picture signal pre-processing module 51, digital signal processor DSC 52; Picture signal pre-processing module 51 is at first carried out binary conversion treatment to the image that optical imaging device is taken, so that reduce data volume; Digital signal counter DSC 52 carries out the comparison of the standard picture of image and storage after the pre-service, and calculates the detection data;
The effect of this device is:
The capture time point of l control chart image-position sensor output signal is to guarantee the integrality of picture signal;
L carries out binary conversion treatment to the picture signal of receiving;
L adopts automated method that the correctness of driving-chain specification is tested;
L compares picture signal of receiving and video standard signal, calculates chain link deformation quantity and deposit.
Fig. 7 is the operational flow diagram of this part, and its detailed process is:
The S401 power-up initializing, reading corresponding data;
S402 judgement picture signal pre-processing module 51 is received shooting trigger signals;
Do not receive, continue to wait for
Receive, forward S403 to;
S403 judgement picture signal pre-processing module 51 is received shooting trigger signals;
Do not receive, continue to wait for;
Receive, forward S404 to;
S402, S403 implication are: when shooting trigger signals arrives, and can not catch picture signal this moment, otherwise acquisition will be incomplete picture signal at once; When first field sync signal occurred after shooting trigger signals arrived, just can catch complete picture signal this moment.
S404 picture signal pre-processing module 51 receives and selects luggage to put the picture signal of transmission, and the picture signal of receiving is carried out binary conversion treatment, and the picture signal after will handling sends to digital signal counter DSC 52;
Wherein the implication of binary processing method is among the step S404: the mean value of entire image gray scale is ε, and gray scale of catching each element in the entire image and ε are compared:
If?G”(i,?j) < ε, Then?G’(i,?j)?=?0
If?G”(i,?j) >=?ε, Then?G’(i,?j)?=?1
G in the formula " (i is j) for catching image before the binary conversion treatment in point (i, the gray scale on j);
G ' in the formula (i, j) be after the binary conversion treatment image in point (i, the gray scale on j);
I is the row on the imageing sensor SR dot matrix in the formula;
J is the row on the imageing sensor SR dot matrix in the formula;
Through above-mentioned processing, the signal data amount of image significantly reduces, and makes its signal processing requirement that meets digital circuit, has improved the precision of signal Processing simultaneously.Because the light source of measuring is provided by the background light device among Fig. 1 34, so just got rid of of the obvious influence of each measure field illumination basically in addition to measurement result.
The standard picture information that stores in 52 pairs of picture signals of receiving of S405 digital signal counter DSC and the storer is done vertical contrast; This step implication be: in the in-site measurement process; The correctness of the corresponding driving-chain specification of digital signal processor DSC automatic gauging picture signal; This process is essential; Cause measurement result to explain otherwise can cause standard picture and input picture to belong to different specifications,, need not the operator get involved because this process is that robotization is carried out.Only when assay when negating, system can remind the operator again on operation and control panel 31 input driving-chain specification get final product.In addition owing to use embedded system to calculate, and measure the driving-chain of operation fast, cause the limited time of each chain link of system handles.Therefore, can not use ready-made in the past theory (like the fingerprint comparison algorithm) to carry out the comparison of chain link pitch deformation quantity.Consider the characteristic of driving-chain, that is: for the driving-chain of same kind, it has highly just determined its specification.Utilize the correctness of highly checking the driving-chain specification, its calculated amount ratio calculated amount of ready-made theory in the past significantly reduces, and satisfies the measurement requirement under the existence conditions.
S406 judges the similarity of photographic images and standard picture:
If the similarity of the two is not more than the setting value of system, the input error of driving-chain specification is described, forward S407 to;
Input is correct if the similarity of the two, is explained the driving-chain rule greater than the setting value of system, forwards S411 to;
Wherein the implication of step S406 is: in this test macro, similarity γ defines as follows:
γ?=?1?-（H?–?H’）/?H
Wherein: H is the dot matrix height that video standard signal reflects on sensor SR, the dot matrix height that H ' reflects on sensor SR for the picture signal of taking acquisition.
Similarity constant Γ confirms: decide according to driving-chain specification arranging density, density more greatly then similarity constant Γ also must be established more greatly.Γ in this test macro=0.95.
S407 gives the alarm and points out the choosing of driving-chain specification wrong, forwards S401 to and re-enters the driving-chain specification;
S411 does horizontal comparison then to photographic images and standard picture elder generation vertical shift; Calculate difference and storage
Wherein the implication of step S411 is: significantly higher or on the low side if the chain link of catching image exists, carry out height control, and make horizontal comparison computation process simply many like this, be beneficial to the time of saving calculating and required memory headroom.
Laterally the comparison result calculated only reflects the value U (u) on the sensor SR dot matrix, is the deformation quantity V (n) of drive link distance and we really need, and both relations are:
V(n)?=?U(n)?*?β
β is the optical magnification of optical system 111 and 121 in the following formula;
N is the identity numbering of tested chain link in the following formula;
Measurement result V (n) leaves in the EEPRM2 63 according to the order of n.
S412 judges to measure whether finish;
Do not finish, forward S408 to and do next circulation;
Finish, forward S413 to;
Whether S408 picture signal pre-processing module 51 receives shooting trigger signals;
Receive, then forward step S409 to;
Do not receive, then continue to wait for;
Whether S409 image preprocess apparatus 51 receives field sync signal;
Receive, then forward S410 to;
Do not receive, then continue to wait for;
S410 image preprocess apparatus 51 is to receive to select luggage to put the picture signal of 21,22 transmissions, and picture signal is carried out binary conversion treatment, and the picture signal after handling is sent to digital signal processing device DSC 52;
The S413 handled, shutdown;
Wherein the implication of step S413 is: except the identity numbering n to chain link follows the tracks of, the working time of also writing down driving-chain, wherein also will stop the time of chain and deduct in the measuring process.Like this, measure and just can obtain chain link sum N and driving-chain cycle of operation T when finishing, and these two data are also deposited in the EEPROM 62.
Said data storage and processing subsystem 6 comprise EEPROM 61, EEPROM 62, communication control module 63 and DAS and database 64; Said EEPROM 61 comes the storage standard image information as ROM (read-only memory); Avoid significant data to be lost owing to cas fortuit; Wherein the reference data of storage can receive import correct password through said operation and control panel 31 after, be input in the EEMPROM 61.Said EEPROM 62 is used as the measurement result storer and stores the detection data, and opens in 61 minutes with EEPROM, further protects important reference data.The detection data can be uploaded to the DAS and the database 64 that are installed on the computing machine through communication control module 63 and carry out further analyzing and processing, analyze and prediction so that draw;
The flow process that uploads on the PC is:
L communication control module 63 is shaken hands with PC in case unexpected PC gets involved corrupt data;
L shake hands after the success master controller with the detection data among the EEPROM2 62 through sending to the PC deposit with communication control module 63 and communication cable;
The detection data that 64 pairs of DAS on the l PC and databases are received are carried out series of analysis, with the present situation that intactly presents tested chain transmission chain pitch variable quantity, rule, development trend in the past.
The test analysis report that DAS can be made includes but not limited to:
L space distribution curve map:
The horizontal ordinate of this curve map is chain link identity numbering; Ordinate is a deformation quantity; That is: from the angle of space distribution, can analyze the fluctuation overview of the mean value (integral status of driving-chain) of chain link deformation, the maximal value of chain link deformation (the hidden danger place that accident risk is maximum), chain link deformation.
L statistical distribution curve map:
The interval of the horizontal ordinate of this curve map for dividing according to chain link deformation quantity size; Ordinate is that deformation quantity drops on corresponding interval interior chain link quantity; That is: from the angle of statistical distribution; At length analyze the fluctuation situation of chain link deformation with quantitative methods, reflect the chain link deformation dispersion degree of whole piece driving-chain exactly.From this curve map can directly find out on the statistical significance ± chain link main body within the 1 σ scope is in which scope; This reflects the integral status of driving-chain more in detail and all sidedly than mean value, thereby can accurately confirm to take the method for integral replacing still to take indivedual methods of rejecting to meet the requirement of security and economy more.If the conclusion of analyzing is to take indivedual methods of rejecting, then the interval by this curve map low order end can directly draw the quantity that needs to reject the maximum chain link of risk, combines sequencing table (below introduction is arranged) thus, just can confirm directly that which chain link need be disallowable.
L time distribution curve figure:
The horizontal ordinate of this curve map is the date; Ordinate is a deformation quantity; This curve map has reflected the situation that chain link deformation quantity in the past increased along with the time objectively, that is: the process that develops in time of deformation, the development trend that can look forward to the future thus; Thereby can confirm the natural mission life of this driving-chain, can also confirm the mission life of artificial intervention (rejecting the maximum several chain links of deformation) back driving-chain.
The l sequencing table:
This sequencing table has not only been listed the descending natural ordering table of deformation quantity; (overproof deformation is not because chain link itself causes also to have listed true sequencing table (overproof deformation is caused by the deformation of chain link own purely), empty sequencing table; But owing to frequency modulated lights such as greasy dirt cause), be marked with asterisk " * " for the overproof chain link that must take to reject/change measure at once.
This DAS can also provide the pairing test report by above-mentioned first three figure in addition.
Owing to used DAS, this data application processes subsystem can analyzing and processing be measured the data that obtain, and produces analysis report.Be convenient between the staff about the information communication of status of equipment with pass on each other, thereby further improved practicality the managerial personnel of equipment and technician's aspect.
Said measurement servicing unit 7 comprises background light device 71, laser locator 72, laser locator 73, transmission first-in-chain(FIC) end detector 74; Wherein said background light device 71 is used to provide the required uniform ambient light of imaging circumstances according to condition, thereby reduces affected by environment and measuring error that cause; Said laser locator 72 is used with laser locator 73, and the adjustment measuring table makes it the practical center height that benchmark is the current tested platform before measuring beginning; Its role is to generate two bundle laser and with two bundle laser alignments, be characterized in improving the key light plane that forms by two optical system primary optical axis in the test macro with respect to the adjustment process of going forward one by one of chain link dynamic height center line in the online detection.Said transmission first-in-chain(FIC) end detector 74 is used to detect the first last chain link of driving-chain to be tested, thereby confirms the initial of a testing process, thus the beginning of control detection process and end.Be that a HALL sensor (taking out placement separately from Test Host when not using) is inserted the corresponding signal port of Test Host in the present embodiment specifically; And a magnet steel is installed in the upper arm groove of streamline driving-chain balladeur train; These two parts form and cooperate, and measurement that is used to confirm and end are when the HALL sensor sensing arrives the magnet steel that moves with driving-chain; Producing a trigger pip is used to drive Test Host and begins measuring process; And when this HALL sensor is sensed magnet steel once more, finishing whole measuring process, this one-period is whole in one week of driving-chain transmission in the required cycle of operation.
Said warning device 8 is made up of spray marking of control device 81 telecommunication cables 82 spray labelling apparatus 83, wherein said spray labelling apparatus after the alerting signal that receives autonomous controller MCU, with color spraying on the problem chain link.
The effect of wherein said spray marking of control device 81 is after the alerting signal that receives autonomous controller MCU; Send the spraying signal and give spray labelling apparatus 83; Said spray labelling apparatus 83 is injected in the developer of color clear on this problem chain link after the signal that receives spray marking of control device 81; This process need not artificial the intervention for automatically accomplishing, and is convenient to operating personnel's chain link that searches problem, thereby has improved practicality.Because the electric signal that forms in the spray labeling process is very strong, for avoiding the influence of this electric signal to measuring, this part should adopt quarantine measures in actual use.Quarantine measures specifically comprise assurance electric signal one-way transmission or use light signal to be used for transmission.
Said driving-chain control device 9 comprises nearly control end 91 telecommunication cables 92 control ends 93 far away; Wherein said nearly control end 91 is installed on Test Host; Be used to receive the alerting signal that master controller MCU sends, this signal is transferred to said control end far away 93 through said communication cable; Said control end far away 93 selects control driving-chain drive motor to stop at preposition according to RST.This device effect is, runs into the problem chain link of overproof (surpassing the setting value of input in advance) during detection, then through the mode of Long-distance Control driving-chain drive motor, lets the whole piece driving-chain stop at preposition automatically.This precalculated position generally is to be convenient to the operation position changing/reject, and therefore, the application of driving-chain control device has improved the practicality that driving-chain detects.The nearly control end 91 of wherein said driving-chain control device is installed in the Test Host, and control end 93 far away is installed on outside the Test Host and is connected with the driving-chain motor control assembly.
The wiring diagram of this part is as shown in Figure 9.Its ingredient: controller MCUt 941, photo-coupler 942, M488t chip 943, Schmidt trigger SMTt (A) 944A--SMTt (B) 944B; LED t (A) 945A--LEDt (B) 945B, network electric power PWRt 946, MCUu 951; LCDu 952, M488u chip 953, transistor 954; Relay 955, Schmidt trigger SMTu (A) 956A--SMTu (D) 956D, button Ku (A) 957A--Ku (C) 957C; LED u (A) 958A--LEDu (B) 958B, network electric power PWRu 959, telecommunications network 923.Auxiliary contents such as the clock source of two MCU, power supply are not drawn.This part function and characteristics are following:
When starting shooting behind the signal port of l telecommunications network 923 insertion correspondences, adopt the mode of dual fail-safe to guarantee telecommunications network ability operate as normal: the state of (1) pilot lamp LEDt (B) 945B and the direct display network of LEDu (B) 958B; (2) detect the state that current potential is judged network respectively by two side controllers 941 and 951, and testing result is shown through pilot lamp LEDt (A) 945A, LEDu (A) 958A and display screen MCUu 952.
L is under the prerequisite of above-mentioned measure, and the controller 941 at two ends and 951 also has the handshake procedure of a band password, in case the maloperation signal in any signal wire that inserts at random.This control system of success of only ought shaking hands is just accepted the alerting signal that master controller sends, and opens the intervention effect to the drive motor operation circuit.
L is in whole testing process, and two controllers 941 and 951 also detect the contingent anything unexpected situation of telecommunication network with the CCP1 module.In case find, close the intervention function at once, and see signal off and submit to the staff in time to get rid of network problem.
When variety of problems such as the above-mentioned arrangement of l can be guaranteed: the signal cable (as: twisted pair network cable) that every anything unexpected causes connecting both sides comes off, and the conduction contact performance is bad take place, can both close the intervention effect of native system at once.
L is whenever MCUt 941 receives an alerting signal (WRN) from master controller MCU, and what it gave that MCUu 951 sends is not a common signal or pulse, but a special information, MCUu 951 must check its integrality after receiving this specific information.Such arrangement can prevent the intervention of any incidental information, can further guarantee the normal operating conditions of telecommunication network again
Driving-chain of l is measured when finishing, and the controller 941,951 at two ends in time cuts out above-mentioned intervention, to prevent any maloperation.
L has used 488 chips in order to ensure telecommunication, and itself can guarantee 1200 meters stabilized communication this chip.
L possibly impact the electric signal that whole test system is brought for fear of native system, has adopted photo-coupler 942.
Fig. 9 is the operational flow diagram of driving-chain drive motor control device.Mainly comprise three phases:
The S301 power-up initializing; S302-S309 check communication network status is guaranteed communication security; S310-S316 shuts down control to the location of motor.
Idiographic flow is:
The S301 initialization connects network
Whether the S302 test network is communicated with
S303 decision level numerical value:
Normally, then forward S305 to;
Undesired, then forward S304 to;
S304 prompting network has problem, forwards S303 to;
S305 opens the network monitoring port, the monitor network situation;
Problem is arranged, forward S306 to;
No problem, forward S307 to;
S306 gives the indication that makes mistake, and the wait problem solves;
The controller at S307 two ends communicates shakes hands;
S308 judges the success or not of shaking hands:
Success forwards S310 to;
Unsuccessful, forward S309 to;
S309 provides miscue, and the wait problem solves, and gets back to S308;
S310 control end far away is opened the CCP2 port;
Whether S311 port CCP2 captures warning message:
Warning message is arranged, then forward S312 to;
Do not have warning message, then continue to wait for;
The nearly control end of S312 sends special confirmation to the USART of control end far away mouth
S313 control end far away judges to confirm whether the result is consistent:
If consistent, then forward S314 to;
If inconsistent, then forward S311 to;
S314 is provided with port status, reads the aircraft gate of setting, and control driving-chain drive motor is parked in the aircraft gate of setting;
S315 receives instruction:
Operation is not accomplished, and then forwards S315 to and continues to wait for;
If operation is accomplished, then forward S316 to;
S316 judges whole measurement state:
Do not accomplish, then wait for driving-chain Electric Machine Control instruction next time;
Accomplish, then shutdown;
Variable declaration among Fig. 9 is following:
τ 4 is delay time amounts of confirming the motor stop position, can reasonably confirm the stop position of motor thus, just driving-chain stop for operating personnel change/pick out overproof chain link the convenience on the space is provided in the chain position.
Through three button Ku (A) 457A--Ku (C) 457C τ 4 is input in the EEPROMu that controller MCUu 451 carries, τ 4 values of every driving-chain are different, calculate after the mapping according to the site space position to get.
The control end far away of said each ingredient long range positioning control system of DAS and database and driving-chain drive motor on being installed on PC; Remainder is formed Test Host; Be used for being connected with test platform; Described DAS and database are installed on the PC, are used for test data is stored, analyzed.
Unanimity must be unified in the required clock source of each parts in its device of the above each ingredient.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that the ordinary skill of this area need not creative work just can design according to the present invention make many modifications and variation.Therefore, all technician in the art all should be in the determined protection domain by right under this invention's idea on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (2)
1. a driving-chain pick-up unit comprises optical imaging device (11) and goes with shooting flip flop equipment (2), human-computer interaction device (3), master controller (4), digital signal processing device (5), data storage and processing subsystem (6), measures servicing unit (7), warning device (8), driving-chain motor position control device (9) with (12), choosing; It is characterized in that: said optical imaging device (11,12) comprises driver module (111,121), optical module (112,122) and imageing sensor (113,123); Two optical imaging devices are used in pairs; Form two optical imaging systems; Be used to generate the image field of driving-chain chain link, and receiving under the situation of instruction, take the image of current driving-chain chain link; Said choosing row and shooting flip flop equipment (2) are by selecting luggage to put (21,22) and choosing row signal Processing and shooting flip flop equipment (23) formation; Be used for selecting that delegation's vision signal of pressing close to this chain link height center line most from the capable signal of image field that optical imaging device (11,12) generates; Through calculating the shooting trigger signals that generates camera system, this signal will notify optical imaging device (11,12) to take the image of current driving-chain chain link; Wherein, described two are selected luggage to put to be used, to be used to receive the image line signal that is transmitted by imageing sensor, see the capable signal of pressing close to most off and give choosing row signal Processing and take flip flop equipment; Said choosing row signal Processing with take flip flop equipment (23) and receive that two are selected luggage to put after the signal that (21,22) send, and calculate the shooting trigger signals of back generation system; Said human-computer interaction device (3) is used to import data and steering order, and video data and running status; Said master controller (4) is used to control the flow process of this pick-up unit, and participates in computing; Said digital signal processing device (5) is used to carry out the comparison and calculating of photographic images, and draws the detection data of deformation quantity; Said data storage and processing subsystem (6) comprise storer, are installed on database and DAS on the PC, are used for preserving detection data, processing and analysis detecting data; Said measurement servicing unit (7) comprises laser locator (72,73) and the terminal detector (74) of transmission first-in-chain(FIC); Said laser locator (72,73) cooperatively interacts; Be arranged on the left and right sides of driving-chain; Generate laser and aim at this two bundles horizontal laser light, be used for measuring the preceding adjustment of beginning main frame height; Beginning and end that the terminal detector of said transmission first-in-chain(FIC) (74) is used for and confirms to measure; Said warning device (8) is used for the problem chain link spraying mark to being worn; Said driving-chain motor position control device (9) is used to control stopping of driving-chain motor, makes to be coated with underlined problem chain link and to stop at predefinedly, is convenient for changing the position of problem chain link; The control end far away (93) of said each ingredient DAS and database and driving-chain motor position control device (9) on being installed on PC, remainder is formed Test Host.
2. driving-chain pick-up unit as claimed in claim 1 is characterized in that: said human-computer interaction device (3) can adopt touch-screen or Keyboard Control panel.
3. driving-chain pick-up unit as claimed in claim 1 is characterized in that: said measurement servicing unit (7) can further comprise background light device (71), and said background light device (71) is used to the background illumination that provides testing environment required.
4. driving-chain pick-up unit as claimed in claim 1 is characterized in that: unanimity must be unified in the required clock source of each parts in the driving-chain pick-up unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205281287U CN202522205U (en) | 2011-12-16 | 2011-12-16 | Assembly line driving chain detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205281287U CN202522205U (en) | 2011-12-16 | 2011-12-16 | Assembly line driving chain detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202522205U true CN202522205U (en) | 2012-11-07 |
Family
ID=47105150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205281287U Expired - Fee Related CN202522205U (en) | 2011-12-16 | 2011-12-16 | Assembly line driving chain detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202522205U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247962A (en) * | 2016-08-30 | 2016-12-21 | 上海诚诚欣信息科技有限公司 | RODIP chain and swing rod chain test system and method |
| CN106362971A (en) * | 2016-08-30 | 2017-02-01 | 上海诚诚欣信息科技有限公司 | Online automatic tidying system for test points of RODIP chains and swinging rod chains |
| CN112066888A (en) * | 2020-08-31 | 2020-12-11 | 广汽本田汽车有限公司 | Wear detection system, method and device for conveyor chain |
-
2011
- 2011-12-16 CN CN2011205281287U patent/CN202522205U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247962A (en) * | 2016-08-30 | 2016-12-21 | 上海诚诚欣信息科技有限公司 | RODIP chain and swing rod chain test system and method |
| CN106362971A (en) * | 2016-08-30 | 2017-02-01 | 上海诚诚欣信息科技有限公司 | Online automatic tidying system for test points of RODIP chains and swinging rod chains |
| CN106362971B (en) * | 2016-08-30 | 2019-04-02 | 上海诚诚欣信息科技有限公司 | RODIP chain and swing rod chain test point on-line automaticization clearing system |
| CN106247962B (en) * | 2016-08-30 | 2019-05-24 | 上海诚诚欣信息科技有限公司 | RODIP chain and swing rod chain test macro and method |
| CN112066888A (en) * | 2020-08-31 | 2020-12-11 | 广汽本田汽车有限公司 | Wear detection system, method and device for conveyor chain |
| CN112066888B (en) * | 2020-08-31 | 2021-11-16 | 广汽本田汽车有限公司 | Wear detection system, method and device for conveyor chain |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102494629B (en) | Method and device for detecting transmission chain of assembling line | |
| CN111476921B (en) | Intelligent inspection system for machine room | |
| CN102602762B (en) | Elevator repair monitoring method | |
| CN102616613B (en) | Elevator monitoring system | |
| CN100394147C (en) | Water level meter with digital video frequency | |
| CN110865917A (en) | AR technology-based electric power machine room inspection operation method, system and application | |
| CN102616617B (en) | Elevator monitoring method | |
| CN105659058A (en) | Unified data collection and reporting interface for equipment | |
| CN207096261U (en) | A kind of multichannel collaurum readout instrument | |
| CN202522205U (en) | Assembly line driving chain detection device | |
| CN110632433A (en) | Power plant equipment operation fault diagnosis system and method | |
| CN102081808A (en) | Field apparatus inspection method and system | |
| CN108627520A (en) | A kind of on-line detecting system and method for heterogeneous solid material presentation quality | |
| CN103116351A (en) | Spinning defective cloth detection camera and detection system thereof | |
| CN102494618A (en) | Cable sheath tensile length detection apparatus | |
| CN109945976A (en) | Binocular imaging detection device and detection method | |
| CN108521296B (en) | Goods information identification system and method | |
| KR100883055B1 (en) | Portable roadway detector evaluation system and method for processing the same | |
| US7587080B1 (en) | Image retention user interface | |
| CN109491408A (en) | A kind of unmanned plane can be used for doors structure detection | |
| CN116147697B (en) | Unattended monitoring method and system for aluminum hydroxide | |
| CN203069527U (en) | Textile defective cloth detection camera and detection system thereof | |
| CN109668547A (en) | A kind of bridge intelligence inspection system | |
| CN114683910B (en) | Method, system, equipment and readable storage medium for providing power exchange | |
| CN113112040A (en) | Detection method, terminal, server, detection system and readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20171216 |