CN104423325A - Fault determination method and apparatus - Google Patents
Fault determination method and apparatus Download PDFInfo
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- CN104423325A CN104423325A CN201310368203.1A CN201310368203A CN104423325A CN 104423325 A CN104423325 A CN 104423325A CN 201310368203 A CN201310368203 A CN 201310368203A CN 104423325 A CN104423325 A CN 104423325A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
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Abstract
The invention discloses a fault determination method and apparatus. The method comprises the following steps: obtaining the vibration parameter of a filament-feeding system of a rapid molding platform; determining whether the vibration parameter is consistent with the vibration parameter of the filament-feeding system when the filament-feeding system works normally; and in case that a determination result is no, determining that the filament-feeding system fails. According to the invention, the problem caused when a camera is used for detecting the filament-feeding system of rapid molding equipment is solved, the cost is decreased, the detection system is simplified, and the detection efficiency is improved.
Description
Technical field
The application relates to rapid shaping field, in particular to fault determination method and device.
Background technology
It is the one of rapid shaping technique that 3D prints, and it is a kind of based on digital model file, uses powdery metal or plastics etc. can jointing material, is carried out the technology of constructed object by the mode successively printed.At the beginning of 2013, the national conditions of US President Barack Obama are announced in giving a lecture, 3D print center is set up in plan, 3D printing technique progressively will form the emerging manufacturing industry of the U.S., and this has greatly promoted the development of 3D printing technique, all carry out large quantity research to this technology both at home and abroad at present.This technology is at jewelry, footwear, industrial design, building, engineering and construction (AEC), automobile, and Aero-Space, dentistry and medical industries, education, Geographic Information System, civil engineering work, gun and other field are applied all to some extent.
Current 3D printing technique has several techniques such as stereolithography apparatus method (SLA), selective laser sintering (SLS), layer separated growth (LOM), fused deposition modeling (FDM).The material melt extruding shaping (i.e. FDM, fused deposition modeling) technique is generally thermoplastic, as wax, acrylonitrile-butadiene-styrene (ABS) (Alkyl Benzo Sulfonate, referred to as ABS) plastics, polycarbonate (Polycarbonate, referred to as PC), nylon etc., with thread feed.Material is by heat fused in shower nozzle, and shower nozzle is along part section profile and fill orbiting motion, is extruded by the material of fusing, material rapid solidification simultaneously, and with the material binding of surrounding.Each synusia piles up to form on last layer, the effect that last layer plays location to current layer and supports.
Current FDM technique many employings filamentary material, and, existing enter a system be opened loop control, there is no feedback mechanism.Cannot test material whether normally enter, the result done like this be material normally do not enter but print system remain in operation, the printing objects that finally cannot obtain.Also there are some schemes to tackle this situation in correlation technique, such as, adopt camera to detect, but the somewhat expensive of camera; And owing to adopting vision algorithm, therefore also will increase image procossing in control chip, make of a high price, and influential system efficiency.
That detects rapid forming equipment for adopting camera in correlation technique enters the problem that a system causes, and not yet proposes effective solution at present.
Summary of the invention
For the problems referred to above that correlation technique exists, at present effective solution is not yet proposed.This application provides a kind of fault determination method and device, with at least solve adopt camera to detect rapid forming equipment enter the problem that a system causes.
According to an aspect of the present invention, provide a kind of fault determination method, comprising: the vibration parameters entering a system obtaining rapid shaping platform; Judge described vibration parameters with described enter the vibration parameters of a system worked well whether consistent; When judged result is no, described in determining, enter a system failure.
Preferably, after entering a system failure described in determining, described method also comprises: send alerting signal, and wherein, described alerting signal comprises: visual signal and/or audible signal.
Preferably, after entering a system failure described in determining, described method also comprises: the user of reading and saving is arranged, and wherein, enters the operation after a system failure described in described user's setting is used to indicate; Arrange according to described user, transmit control signal.
Preferably, described control signal be used for following one of at least: the work stopping described rapid shaping platform; Record the job schedule of described rapid shaping platform; Start automatic filament replacing device, wherein, described automatic filament replacing device is used for the silk material automatically entered described in replacing in a system.
Preferably, obtain described vibration parameters and comprise: the described vibration parameters entering a system described in being obtained by vibration transducer, wherein, described vibration transducer comprises: relative type motor vibration transducer and inertial sensor.
According to another aspect of the present invention, additionally provide a kind of failure determination device, comprising: acquisition module, for obtaining the vibration parameters entering a system of rapid shaping platform; Judge module, for judge described vibration parameters with described enter the vibration parameters of a system worked well whether consistent; Determination module, for being no in judged result, enters a system failure described in determining.
Preferably, described device also comprises: alarm module, and for sending alerting signal, wherein, described alerting signal comprises: visual signal and/or audible signal.
Preferably, described device also comprises: read module, and the user for reading and saving is arranged, and wherein, enters the operation after a system failure described in described user's setting is used to indicate; Sending module, for arranging according to described user, transmits control signal.
Preferably, described control signal be used for following one of at least: the work stopping described rapid shaping platform; Record the job schedule of described rapid shaping platform; Start automatic filament replacing device, wherein, described automatic filament replacing device is used for the silk material automatically entered described in replacing in a system.
Preferably, enter the described vibration parameters of a system described in described acquisition module is used for being obtained by vibration transducer, wherein, described vibration transducer comprises: relative type motor vibration transducer and inertial sensor.
By the present invention, have employed the vibration parameters entering a system obtaining rapid shaping platform; Judge that whether this vibration parameters is consistent with the vibration parameters entering a system worked well; When judged result is no, determine that this enters the mode of a system failure, solve adopt camera to detect rapid forming equipment enter the problem that a system causes, reduce cost, simplify detection system, improve detection efficiency.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present application, and form a application's part, the schematic description and description of the application, for explaining the application, does not form the improper restriction to the application.Further, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of the fault determination method according to the embodiment of the present application;
Fig. 2 is the structured flowchart of the failure determination device according to the embodiment of the present application;
Fig. 3 is the preferred structure block diagram one of the failure determination device according to the embodiment of the present application;
Fig. 4 is the preferred structure block diagram two of the failure determination device according to the embodiment of the present application.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the application in detail in conjunction with the embodiments.
In the following description, except as otherwise noted, the symbol otherwise with reference to the action performed by one or more computing machine and operation represents each embodiment describing the application.Wherein, computing machine can comprise the various products such as personal computer, server, mobile terminal, in the examples below, employs the equipment that CPU, single-chip microcomputer, DSP etc. have a process chip and all can be called computing machine.Thus, be appreciated that processing unit that this kind of action performed sometimes referred to as computing machine and operation comprise computing machine is to the manipulation of electric signal representing data with structured form.It is safeguarded in this manipulation transforms data or the position in the accumulator system of computing machine, and this reshuffles or changes the operation of computing machine in the mode that those skilled in the art understands.The data structure of service data is the physical location of the storer of the particular community that the form with data defines.But although describe the application in above-mentioned context, it does not also mean that restrictive, as understood by those skilled in the art, hereinafter described action and each side of operation also can realize with hardware.
Turn to accompanying drawing, wherein identical reference number refers to identical element, and the principle of the application is shown in suitable computing environment and realizes.Below describe the embodiment based on described the application, and should not think about the alternative embodiment clearly do not described herein and limit the application.
Preferably, the embodiment of the present application can provide a machine-readable medium it storing the embodiment of the present application.It should be noted that, arbitrary applicable design Storage about the media of the instruction of the application all within the scope of the application.Such as, such media can adopt the form of magnetic medium, optical media or semiconductor medium.
Can perform in the computer system of such as one group of computer executable instructions in the step shown in the schematic flow sheet of accompanying drawing, and, although illustrated logical order in schematic flow sheet, in some cases, can be different from the step shown or described by order execution herein.
Present embodiments provide a kind of fault determination method, Fig. 1 is the schematic flow sheet of the fault determination method according to the embodiment of the present application, and as shown in Figure 1, this flow process comprises the steps:
Step S102, obtains the vibration parameters entering a system of rapid shaping platform;
Step S104, judges that whether vibration parameters is consistent with the vibration parameters entering a system worked well;
Step S106, when judged result is no, determines into a system failure.
Pass through above-mentioned steps, inconsistent with the vibration parameters normally worked by judging the mode into the vibration parameters of a system, a system jam is entered with what determine rapid shaping platform, for adopting the mode of camera in correlation technique, owing to no longer needing high-precision camera, also no longer need complicated vision algorithm support, therefore its cost greatly reduces; The vibration parameters obtained into a system is only needed in the process determining fault, additionally provide the detection of mode to vibration parameters of multiple maturation in the related, these detection modes are simple, and whole detection system structure is simple, because this simplify detection system; Because its deterministic process and detection system are all very simple, also improve the efficiency of detection, go for fast enter the fault detect of a system.
Preferably, in order to cause the attention of user when entering a thread system failure, after above-mentioned steps S106, the method can also comprise: send alerting signal.Enter a system by alerting signal prompting user and there occurs fault, so that follow-up process.This, for the rapid shaping platform not having warning system in correlation technique, improves the experience of user.Preferably, alerting signal comprises: visual signal and/or audible signal, such as, can be: flashing light, the visual signal such as send out a warning, and also can be chimes of doom.Preferably, this alerting signal can be sent by the dispensing device of an access network, such as, this alerting signal is a message, be sent on mobile terminal by the wireless Internet of access or the mode such as WLAN (wireless local area network), and can be presented by modes such as picture, video, audio frequency on mobile terminals.Correspondingly, corresponding application program is installed on mobile terminals for processing the alerting signal received.
In addition, also it should be noted that, what send alerting signal in the method can be failure determination device, also can be the alerting signal sent according to the control signal sent by failure determination device, namely the device for reporting to the police can be positioned at rapid shaping platform, also can be positioned on failure determination device, can also be positioned on other equipment, also can be relatively independent warning system.
Preferably, can configure one and arrange for obtaining user, and preserve the device that user arranges, the user being respectively used to obtain from user arranges and preserves and arranges from the user of user.In this case, after step s 106, the method can also comprise: the user of reading and saving is arranged, and wherein, user arranges and is used to indicate into the operation after a system failure; Arrange according to this user, transmit control signal.Wherein, this control signal is used to indicate corresponding functional entity and performs corresponding operation.By such mode, provide one can be defined by the user policy service, thus improve practicality and the dirigibility of whole system.
Preferably, above-mentioned control signal can send to rapid shaping platform, also can be send to other functional entity to complete corresponding operation, such as, one can be provided for the automatic filament replacing device of automatic more swap-in silk device, this automatic filament replacing device, according to the control signal received, is changed this and is entered silk material in a system.When this control signal sends to rapid shaping platform, the related device of rapid shaping platform can complete one of following function: the work stopping rapid shaping platform, or the job schedule of record rapid shaping platform.
It should be noted that, above-mentioned preferred mode can be combined when not conflicting, and such as rapid shaping platform upon the reception of control signals, stops the work of rapid shaping platform, and record the job schedule of rapid shaping platform according to this control signal.
Preferably, can obtain vibration parameters into a system by vibration transducer, wherein, vibration transducer comprises: relative type motor vibration transducer and inertial sensor.If relative type motor vibration transducer, sensor can be fixed near a system, and this sensor can not be connected with rapid shaping platform, and namely failure determination device is relatively independent existence relative to rapid shaping platform, be conducive to upgrading and the renewal of equipment; If inertial sensor, sensor can be fixed on in a system, thus formed one with the entirety entered a system and be combined, simplify the installation of failure determination device/system.
The present embodiment additionally provides a kind of failure determination device, and this device is used for realizing above-mentioned fault determination method.The module of the correspondence related in the present embodiment and the functional description of unit can be carried out combination in conjunction with each functional realiey of above-mentioned fault determination method and describe and illustrate, will repeat no more in the present embodiment.
Fig. 2 is the structured flowchart of the failure determination device according to the embodiment of the present application, as shown in Figure 2, this device can comprise: acquisition module 22, judge module 24 and determination module 26, wherein, acquisition module 22, for obtaining the vibration parameters entering a system of rapid shaping platform; Judge module 24 is coupled to acquisition module 22, for judging that whether vibration parameters is consistent with the vibration parameters entering a system worked well; Determination module 26 is coupled to judge module 24, for being no in judged result, determines into a system failure.
Fig. 3 is the preferred structure block diagram one of the failure determination device according to the embodiment of the present application, as shown in Figure 3, preferably, this device also comprises: alarm module 32 is coupled to determination module 26, for sending alerting signal, wherein, alerting signal comprises: visual signal and/or audible signal.
Fig. 4 is the preferred structure block diagram two of the failure determination device according to the embodiment of the present application, as shown in Figure 4, preferably, this device also comprises: read module 42 is coupled to determination module 26, user for reading and saving is arranged, and wherein, user arranges and is used to indicate into the operation after a system failure; Sending module 44 is coupled to read module 42, for arranging according to user, transmits control signal.
It should be noted that, Fig. 4 also can the structure of composition graphs 3 improve, and namely in one preferred embodiment, comprises the alarm module 32 and read module 42 that are coupled with determination module 26 simultaneously, and the sending module 44 be coupled with read module 42.
Preferably, control signal be used for following one of at least: the work stopping rapid shaping platform; The job schedule of record rapid shaping platform; Start automatic filament replacing device, wherein, automatic filament replacing device is used for the silk material in automatic more swap-in silk system.
Preferably, acquisition module 22 is for obtaining the vibration parameters into a system by vibration transducer, wherein, vibration transducer comprises: relative type motor vibration transducer and inertial sensor.
Module involved in the present embodiment, unit can be realized by the mode of software, also can be realized by the mode of hardware.Module described in the present embodiment, unit also can be arranged within a processor, such as, can be described as: a kind of processor comprises acquisition module 22, judge module 24 and determination module 26.Wherein, the title of these modules does not form the restriction to this module itself in some cases, and such as, acquisition module can also be described to " for obtaining the module entering the vibration parameters of a system of rapid shaping platform ".
Below in conjunction with preferred embodiment, its implementation procedure is described and is illustrated.
This preferred embodiment provides a kind of rapidform machine charging fault detection method based on vibration detection, and the method can be used in the product such as rapid shaping platform, 3D printer based on FDM technique.Based on this preferred embodiment, for due to the abnormal phenomenon of wire vent, the generation printing failure scenarios can be avoided preferably.
Whether the technical scheme of this preferred embodiment comprises: increase sensor test material at the position entering material and normally enter.If normally do not entered, take necessary measure, as provided prompting, and time-out printing, record printing progress now, again recovers to continue to print after changing silk.Or adopt automatic filament replacing device, change silk and automatically continue afterwards to print.
An implementation procedure of technique scheme has been shown in step below:
Whether step 1, start print procedure, and it is normal to start to detect wire vent;
Step 2, if detect that wire vent is abnormal, checks user's setting, if user is provided with automatic filament replacing enter step 5; If be provided with manual operation, enter step 3;
Step 3, time-out printing, and send warning;
Step 4, user manually changes silk, enters step 6;
Step 5, carries out automatic filament replacing, enters step 6;
Step 6, prints and continues, until terminate, if there is exception, then returns and perform step 2.
Whether, from above-mentioned description, this preferred embodiment achieves following effect: increase sensor test material at the position entering material and normally enter; Auto stop when breaking down also is reported to the police; Can automatic filament replacing when breaking down.
In sum, by the above embodiment of the present invention, preferred embodiment and preferred implementation, have employed the fault detection approach based on vibration, in some in these embodiments and preferred implementation, add vibration transducer, formation control closed loop, make control more reasonable; Provide a kind of can warning and the scheme of automatic filament replacing by auto stop, effectively can improve and be printed as power; Cost can be reduced compared to camera head monitor scheme, and improve work efficiency, solve existing enter a system be opened loop control, there is no feedback mechanism, and cannot the problem that whether normally enters of test material, effectively prevent material and normally not enter but print system remains in operation, the defect of the printing objects that finally cannot obtain, reduce cost, simplify detection system, improve detection efficiency.
Above-mentionedly preferred embodiment can be combined.In addition, as used in this application, term " module " or " unit " can refer to the software object that performs on said apparatus or routine.Disparate modules described herein and unit can be implemented as on said apparatus, perform (such as, the thread as independent) object or process, and meanwhile, said apparatus uses the realization of the combination of hardware or software and hardware also possible and conceived.
The principle of the application can use other universal or special calculating or communication environment or configuration to operate.Be applicable to the well-known computing system of the application, the example of environment and configuration includes but not limited to, personal computer, server, multicomputer system, system based on micro-process, minicomputer, mainframe computer, smart machine, terminal (comprising mobile terminal) and comprise the distributed computing environment of arbitrary said system or equipment.
Obviously, those skilled in the art should be understood that, each module of above-mentioned the application or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the application is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiment of the application, be not limited to the application, for a person skilled in the art, the application can have various modifications and variations.Within all spirit in the application and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the application.
Claims (10)
1. a fault determination method, is characterized in that comprising:
Obtain the vibration parameters entering a system of rapid shaping platform;
Judge described vibration parameters with described enter the vibration parameters of a system worked well whether consistent;
When judged result is no, described in determining, enter a system failure.
2. method according to claim 1, is characterized in that, after entering a system failure described in determining, described method also comprises:
Send alerting signal, wherein, described alerting signal comprises: visual signal and/or audible signal.
3. method according to claim 1, is characterized in that, after entering a system failure described in determining, described method also comprises:
The user of reading and saving is arranged, and wherein, enters the operation after a system failure described in described user's setting is used to indicate;
Arrange according to described user, transmit control signal.
4. method according to claim 3, is characterized in that, described control signal be used for following one of at least:
Stop the work of described rapid shaping platform;
Record the job schedule of described rapid shaping platform;
Start automatic filament replacing device, wherein, described automatic filament replacing device is used for the silk material automatically entered described in replacing in a system.
5. method according to any one of claim 1 to 4, is characterized in that, obtains described vibration parameters and comprises:
Enter the described vibration parameters of a system described in being obtained by vibration transducer, wherein, described vibration transducer comprises: relative type motor vibration transducer and inertial sensor.
6. a failure determination device, is characterized in that comprising:
Acquisition module, for obtaining the vibration parameters entering a system of rapid shaping platform;
Judge module, for judge described vibration parameters with described enter the vibration parameters of a system worked well whether consistent;
Determination module, for being no in judged result, enters a system failure described in determining.
7. device according to claim 6, is characterized in that, described device also comprises:
Alarm module, for sending alerting signal, wherein, described alerting signal comprises: visual signal and/or audible signal.
8. device according to claim 6, is characterized in that, described device also comprises:
Read module, the user for reading and saving is arranged, and wherein, enters the operation after a system failure described in described user's setting is used to indicate;
Sending module, for arranging according to described user, transmits control signal.
9. device according to claim 8, is characterized in that, described control signal be used for following one of at least:
Stop the work of described rapid shaping platform;
Record the job schedule of described rapid shaping platform;
Start automatic filament replacing device, wherein, that enters a system described in described automatic filament replacing device is used for automatically changing enters silk device.
10. the device according to any one of claim 6 to 9, it is characterized in that, enter the described vibration parameters of a system described in described acquisition module is used for being obtained by vibration transducer, wherein, described vibration transducer comprises: relative type motor vibration transducer and inertial sensor.
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