WO2015001659A1 - メンテナンス必要個所を推定可能な自動システム - Google Patents
メンテナンス必要個所を推定可能な自動システム Download PDFInfo
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- WO2015001659A1 WO2015001659A1 PCT/JP2013/068497 JP2013068497W WO2015001659A1 WO 2015001659 A1 WO2015001659 A1 WO 2015001659A1 JP 2013068497 W JP2013068497 W JP 2013068497W WO 2015001659 A1 WO2015001659 A1 WO 2015001659A1
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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
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0243—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults model based detection method, e.g. first-principles knowledge model
- G05B23/0245—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults model based detection method, e.g. first-principles knowledge model based on a qualitative model, e.g. rule based; if-then decisions
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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
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
- G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
- G05B13/04—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
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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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/08—Monitoring manufacture of assemblages
- H05K13/0895—Maintenance systems or processes, e.g. indicating need for maintenance
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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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/42—Servomotor, servo controller kind till VSS
- G05B2219/42271—Monitor parameters, conditions servo for maintenance, lubrication, repair purposes
Definitions
- the present invention relates to an automatic system including a control target device such as an electronic circuit component mounting machine and a control device that controls the control target device.
- the control target device is in a state requiring maintenance.
- the present invention relates to a technique capable of detecting the fact quickly and preferably estimating a place where maintenance is necessary.
- Patent Document 1 describes an invention that presents the cause of an abnormality when an abnormality occurs in an electronic circuit component mounting machine.
- the component mounting error occurrence status is stored in the storage device, and the correspondence between the mounting error occurrence status and the cause is mathematically expressed.
- the cause is estimated based on the mathematical formula, and in particular, the mathematical formula of the correspondence relationship is corrected according to the environment in which the apparatus is installed.
- Patent Document 2 two pieces of data that are estimated to have a causal relationship among the time-series data obtained by sequentially observing the devices constituting the plant as time elapses are set as input data and output data.
- the present invention is an automatic system that can quickly detect that the device to be controlled is in a state that requires maintenance based on completely different ideas, and preferably can estimate the cause of the abnormality or the location where maintenance is required. Is obtained.
- the present invention provides an automatic system that includes a control target device and a control device that controls the control target device.
- the control device includes: (a) a controller that outputs a control command to the control target device; and (b) its control.
- an adaptive control device including an adaptive compensator that performs compensation, and the control target device is maintained by the adaptive control device based on one or more parameters estimated by the adaptive identifier.
- a main maintenance detection unit for detecting that a condition requiring the scan, and more preferably, is characterized in providing an essential maintenance point estimating unit that estimates a location requiring maintenance of the control target apparatus.
- Adaptive control is characterized by changing the parameters of the model of the device to be controlled according to the change of the situation, and the objective can always be achieved satisfactorily regardless of the change of the situation by the control according to the situation. From a viewpoint, it can be said that the control can quickly and numerically grasp the state change of the control target device by paying attention to the change of the parameter.
- the present invention positively utilizes this point to quickly grasp the sign or abnormality of the abnormality of the control target device, detect that the control target device is in a state that requires maintenance. This is an attempt to estimate the necessary part of. Conventionally, an abnormality in the output has been discovered and the cause of the abnormality has been identified, but even if an abnormality occurs in the output, it is generally difficult to grasp.
- the sign or abnormality of abnormality can be discovered quickly, and the cause estimation accuracy of abnormality can be improved.
- the change in the characteristics of the control target device such as the frictional force of the relative movement unit, the thrust constant of the linear motor as the driving source or the torque constant of the rotary motor, the resonance frequency of the component such as the device main body, and the like are obtained numerically as parameter changes. It is possible. Therefore, it is possible to quickly detect that an abnormality sign or abnormality has occurred in the control target device, and maintenance is required, and in order to avoid the occurrence of the abnormality in advance or eliminate the abnormality It is possible to estimate the location where maintenance is required with high accuracy.
- an electronic circuit component mounting machine (hereinafter abbreviated as a mounting machine) as an example of a counter circuit substrate working machine according to an embodiment of the present invention will be described with reference to the drawings.
- the present invention can be implemented in a mode in which various modifications are made based on the knowledge of those skilled in the art, in addition to the following embodiments.
- the mounting machine 10 includes a mounting machine main body 12, and the mounting machine main body 12 is installed on a floor 16 via a leveling device 14, as shown in FIG.
- Various devices can be used as the leveling device 14, but FIG. 2 illustrates a device including four height adjusting screw devices 20.
- Each height adjusting screw device 20 includes a female screw hole (not shown) formed in the mounting machine main body 12, a head portion supported by the floor surface 16, and a male screw portion screwed into the female screw hole. It consists of a bolt 22 and a lock nut 24 screwed to the leveling bolt 22.
- the height adjusting screw device 20 adjusts the screwing amount of the leveling bolt 22 to the female screw hole so that the four positions of the mounting machine body 12 are evenly placed on the floor surface 16 regardless of the flatness of the floor surface 16. At the same time, the mounting machine main body 12 is kept horizontal with high accuracy.
- the base material transport and holding device 30 includes a pair of belt conveyors 42 that support and transport both side edges of a circuit board 40 as an example of a circuit base material, and a lifting platform 44 that can be moved up and down between them. Contains. In the raised position, the lifting / lowering base 44 is fixed by sandwiching both side edges of the circuit board 40 in cooperation with a longitudinal receiving member 48 fixed to the upper ends of a pair of conveyor rails 46 (see FIG. 2) of the belt conveyor 42. To do.
- the component supply device 32 is disposed on one side or both sides of the substrate conveyance holding device 30 and supplies a plurality of feeders (hereinafter abbreviated as components) each for supplying one type of electronic circuit components (in the illustrated example, the tape feeder 50). ) Is included.
- the mounting device 34 receives components from the plurality of tape feeders 50 and mounts the components on the circuit board 40 that is held in a fixed position on the base material transport holding device 30. Therefore, as shown in FIG. 2, the mounting device 34 includes a mounting head 56 including a component holder that holds the component 52 (in the example shown, a suction nozzle 54 that sucks and holds the component 52 by negative pressure).
- the suction nozzle moving device 60 is a holder moving device that moves the suction nozzle 54 in the X, Y, and Z axis directions orthogonal to each other.
- the suction nozzle moving device 60 includes an X-axis slide 64 that can slide on a pair of X-axis guide rails 62 (see FIG. 2), and a pair of Y-axis guide rails 66 (see FIG. 2) provided on the X-axis slide 64.
- a Y-axis slide 68 slidable on the head, a head main body 70 detachable from the Y-axis slide 68, and a Z-axis actuator 72 held by the head main body 70 are included.
- the X-axis slide 64 is connected to an arbitrary X-axis direction by a pair of X-axis feed screws 76 (see FIG. 1) disposed in parallel to the pair of X-axis guide rails 62 and an X-axis motor 78 that rotationally drives them. Moved to position.
- the Y-axis slide 68 is formed in an arbitrary direction in the Y-axis direction by a single Y-axis feed screw 80 disposed in parallel with the pair of Y-axis guide rails 66 and a Y-axis motor 82 (see FIG. 1) that rotationally drives the Y-axis slide. Moved to position.
- the suction nozzle 54 is moved in the Z-axis direction by the Z-axis actuator 72, that is, moved up and down in the vertical direction.
- An acceleration sensor that detects vibrations in the X, Y, and Z3 axis directions is attached to the mounting machine body 12 as a vibration sensor 90.
- one vibration sensor 90 is shown below the lifting platform 44, but it can also be provided at a plurality of locations, for example, above the plurality of height adjusting screw devices 20.
- the mounting machine 10 includes a control device 100 (see FIG. 3) that controls the substrate transport holding device 30, the component supply device 32, the mounting device 34, and the like, and an operation device 102 that is operated by the operator on the control device 100. And the display 104 are connected.
- An adaptive control unit 110 is provided as a part of the control device 100.
- FIG. 3 representatively shows a part related to the X-axis motor 78 in the adaptive control unit 110.
- the control device 100 sequentially reads and executes a program related to mounting of the component 52 on the circuit board 40 from the program storage unit, and accordingly, a position command is issued to the X-axis motor 78. It is done.
- the adaptive control unit 110 includes a position control system 112 for executing this position command, and supplies current to the X-axis motor 78. As conceptually shown in FIG. 3, this current is once increased in the forward direction and then decreased, and subsequently increased in the reverse direction and then decreased. As a result, the X-axis motor 78 is changed to FIG. As conceptually shown, the rotation is stopped by a predetermined amount, and the X-axis slide 64 is moved by a predetermined distance in the X-axis direction and stopped.
- the movement of the X-axis slide 64 according to the control of the supply current is affected by the torque constant of the X-axis motor 78 and the frictional resistance of the X-axis slide 64. Since the X-axis motor 78 is provided with an encoder, and the X-axis motor 78 is operated until the output of the encoder reaches a set value, the X-axis slide 64 is always stopped at the set position. The change state of the current is affected by the torque constant of the X-axis motor 78 and the frictional resistance of the X-axis slide 64.
- the main cause of fluctuations in the torque constant of the X-axis motor 78 is thermal demagnetization of the magnet, and there are reversible and irreversible thermal demagnetization.
- the X-axis motor 78 is provided with a cooling fan and a filter, and one example is that these abnormalities cause a temperature increase that is higher than usual of the X-axis motor 78.
- the cooling fan rotates with the rotation of the X-axis motor 78 and cools the X-axis motor 78, but the sliding surface inside the fan may be peeled off due to fatigue, or may be stuck by physical impact.
- Rotation is insufficient due to an increase in frictional resistance due to an increase in frictional resistance due to a shortage of lubricant such as grease, etc., resulting in insufficient temperature cooling due to insufficient cooling of the X-axis motor 78 and an undesired decrease in magnets. Magnetism may occur. Further, the filter is provided on the suction side of the cooling fan and removes dust and the like from the air sent into the X-axis motor 78. Insufficient demagnetization may occur in the magnet.
- the frictional resistance of the X-axis slide 64 is a frictional resistance between the X-axis slide 64 and the X-axis guide rail 62 and a frictional resistance between the X-axis feed screw 76 and the X-axis slide 64. If the lubrication between the X-axis slide 64 and the X-axis guide rail 62 is insufficient, the frictional resistance increases. Further, in order to move the X-axis slide 64 smoothly without rattling, it is usual that a predetermined load (preload) always acts between the X-axis slide 64 and the X-axis guide rail 62.
- preload a predetermined load
- the lubricant such as grease is discharged, the components of the relative movement part (for example, the ball when the X-axis feed screw 76 is a ball screw) are worn and the frictional resistance is reduced.
- the frictional resistance becomes larger or smaller than the expected value.
- the frictional resistance of the X-axis slide 64 changes, the increase / decrease state of the current supplied from the position control system 112 changes. If the lubrication between the sliding surfaces is insufficient, wrinkles will be generated, and wear exceeding the allowable amount of the components of the relative moving part will cause a decrease in the positioning accuracy of the X-axis slide 64.
- the magnet demagnetization described above and changes in the supply current are caused by inspection of the cooling fan, filter, relative moving part, etc., and elimination of the cause found as a result (for example, replenishment of lubricant, replacement of filter, seal member, etc.) Etc.) is eliminated by execution of maintenance.
- the demagnetization of the magnet reaches an irreversible state, the torque constant of the X-axis motor 78 remains lowered, and the power efficiency of the X-axis motor 78 and the throughput of the mounting machine 10 are reduced. .
- repair maintenance such as replacement of the X-axis motor 78, the sealing device, and the cooling fan and removal of wrinkles of the guide rail is required.
- the operation of the X-axis motor 78 is affected by the torque constant of the X-axis motor 78 itself and the frictional force of the relative movement unit driven by the X-axis motor 78.
- the adaptive control unit 110 determines the torque constant of the X-axis motor 78 and the relative movement unit based on the position command supplied to the position control system 112 and the position information fed back from the encoder of the X-axis motor 78.
- An adaptive identifier 114 for estimating the frictional force, and an adaptive compensator 118 for calculating the current increase / decrease amount based on the torque constant and the frictional force estimated thereby and supplying the current increase / decrease amount to the adder 116 are provided.
- the model represented by the above formula is supposed to include a set value expected in design as a value of the torque constant or friction force in the initial stage, but the value of the torque constant or friction force in the actual mounting machine 10 is assumed. Is not necessarily exactly equal to the set value, but rather is often somewhat different, and these also change as the mounting machine 10 continues to operate.
- the adaptive control unit 110 repeats the estimation and compensation in the adaptive identifier 114 and the adaptive compensator 118, thereby bringing the torque constant and the frictional force in the equation closer to the actual torque constant and the frictional force.
- Incorrect initial setting values of the number of torque and frictional force are corrected, or the X-axis slide 64 is moved to the position according to the position command as quickly and accurately as possible regardless of fluctuations caused by continued operation of the mounting machine 10.
- the X-axis motor 78 is controlled so as to complete the movement.
- the adaptive control unit 110 is inherently capable of causing the X-axis slide 64 to perform a favorable movement regardless of inappropriateness of initial values of torque constants and frictional forces and fluctuations caused by continued operation.
- the inventor of the present invention is that the adaptive control unit 110 repeats the estimation of the actual torque constant and frictional force, and the torque constant and the frictional friction when the operation of the mounting machine 10 is stable. If the estimated value of the torque constant or the frictional force changes more than the set value when the fluctuation of the estimated value of the force is small and the operation of the mounting machine 10 should be stable, the X-axis motor It was found that some signs of abnormality occurred in the 78 and the X-axis slide 64, or it can be considered that an abnormality occurred.
- the maintenance necessity determination unit 130 is a part that determines whether or not the device to be controlled has entered a state that requires maintenance based on the change state of the torque constant and the estimated value of the frictional force by the adaptive identifier 114. Specifically, for example, when the absolute value of the difference between the torque constant or the estimated value of the frictional force and the set value is equal to or greater than a threshold value, it can be determined that “maintenance is required”.
- the control target device includes (a) an X-axis slide 64, (b) an X-axis motor 78 as a drive source for the X-axis slide 64, and (c) rotation of the X-axis motor 78 as X It is a part including a motion conversion device comprising an X-axis feed screw 76 and a female screw portion for converting into a linear motion of the shaft slide 64, and (d) an X-axis guide rail 62 as a guide device for guiding the movement of the X-axis slide 64.
- the maintenance notifying unit 132 is a part for notifying the fact and the content of necessary maintenance using the display 104 when the maintenance necessity determining unit 130 determines that maintenance is necessary, and executing automatic maintenance.
- the unit 134 is a part that performs maintenance that can be automatically performed, for example, replenishment of a lubricant.
- maintenances those that can be automatically executed are automatically executed by the automatic maintenance execution unit 134, and the fact is displayed on the display 104.
- the operation of the mounting machine 10 is stopped and the fact is displayed on the display 104.
- the X-axis slide 64 and the X-axis motor 78 have been described above, but a similar adaptive control unit is provided for the Y-axis slide 68 and the Y-axis motor 82, and similar adaptation is also applied to the suction nozzle 54 and the Z-axis actuator 72.
- a control unit is provided, and the same or similar actions and effects can be obtained.
- a lubricant replenishment interval acquisition unit is provided for acquiring a lubricant replenishment interval that is an elapsed time until it is estimated that the lubricant needs to be replenished, or a cumulative operation time of the mounting machine 10 that is a device to be controlled.
- the abnormality notification device is informed that the relative movement unit is in an abnormal state, and together with or instead of that, the relative movement prohibition unit It is also possible to prohibit the operation of the suction nozzle moving device 60.
- the drive source of the suction nozzle moving device 60 such as the X-axis motor 78, the Y-axis motor 82, the Z-axis actuator 72, etc.
- the drive source is temporarily stopped and the set time from the stop.
- the torque constant is detected again, and when the decrease in the torque constant is an irreversible decrease, the maintenance notification unit 132 can display on the display 104 that the drive source needs to be replaced. is there.
- the detected vibration frequency is detected by the adaptive control unit 110 from the set frequency (the natural frequency of the mounting machine body 12 when leveling is performed normally).
- the set value exceeds the set value, for example, when the set value is lower than the set value, the support state of the mounting machine body 12 by the leveling device 14 is inappropriate, and re-leveling work or repair of the leveling device 14 is necessary.
- a vibration sensor is provided at another location to detect vibration frequencies of components other than the mounting machine body 12, such as a feed screw and a motion transmission mechanism, and the detection result Based on the above, it is possible to determine that the state of the other component (for example, the support state) is abnormal. Thereby, appropriate maintenance can be performed at an appropriate time, and a decrease in throughput and mounting accuracy can be avoided in advance.
- the adaptive control unit 110 causes the suction nozzle 54 to complete the movement to the position according to the position command as quickly and accurately as possible regardless of fluctuations caused by continued operation of the mounting machine 10.
- the drive source of the suction nozzle moving device 60 such as the X-axis slide 64
- model reference control generally adopted in adaptive control may be adopted. Is possible.
- model identification it is possible to use the disturbance change state estimated by the disturbance observer in addition to the current change state with respect to the position command as information used for identification, and further calculate parameters by the identification.
- a least square method or the like that takes a difference of an actual device response from an intended response as an evaluation function and minimizes the evaluation function.
- the mounting machine 10 has been described above as an example, but the circuit substrate working machine other than the mounting machine 10, for example, a screen printing machine that prints cream-like solder on a circuit board, an adhesive that applies an adhesive to a circuit substrate
- the present invention can be applied to a coating machine, a mounting state inspection machine for inspecting a mounting state of an electronic circuit component on a circuit base material before or after melting of a cream-like solder, and more widely in general production machines
- the present invention can be applied to other devices, for example, devices for which adaptive control has already been adopted.
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Abstract
Description
また、下記特許文献2に、プラントを構成する機器等を時間の経過に従って順次観測して得た時系列データのうち、互いに因果関係があると推定される2つのデータを入力データおよび出力データとし、入力データの上昇傾向、下降傾向、振動傾向等、制御システムに特有のデータの変化種別毎に、入力データに対する出力データの応答性に関する情報を抽出し、応答性に関する情報の偏差から異常データの候補を取得する発明が記載されている。
それに対し、本発明は、全く異なる着想に基づいて、制御対象装置がメンテナンスを要する状態となったことを逸早く検出し得、望ましくは、さらにその異常原因ないしメンテナンス必要個所の推定を行い得る自動システムを得たものである。
従来は、出力の異常を発見し、その原因を特定することが行われていたのであるが、出力に異常が生じても一般にそれが把握され難い。それに対し、適応制御において得られるパラメータの変化に基づけば、逸早く異常の兆候ないし異常を発見することができ、また、異常の原因推定の精度を高めることができる。例えば、相対移動部の摩擦力,駆動源たるリニアモータの推力定数あるいは回転モータのトルク定数、装置本体等構成要素の共振周波数等、制御対象装置の特性の変化をパラメータの変化として数値で取得することが可能である。したがって、制御対象装置に異常の兆候ないし異常が生じてメンテナンスを要する状態となったことを逸早く検出することができ、さらに一歩進めて、異常の発生を事前に回避し、あるいは異常を解消するためのメンテナンスが必要な個所を高い精度で推定することができる。
制御対象装置においては、潤滑剤の補給,フィルタの清掃,交換等のメンテナンスを行うことが不可欠であるが、メンテナンスの実行中は装置を停止させざるを得ずスループットが低下するため、メンテナンスの実行間隔は長い方がよい。しかし、メンテナンスの実行が遅れれば装置の故障につながる危険がある。本発明によれば、メンテナンスを要する状態になったこと、さらにはメンテナンスの必要な個所を自動的に検出することができ、適切な時期にメンテナンスを行うことが可能となって、過剰なメンテナンスによるスループットの低下回避と、メンテナンス不足による故障の発生とを共に良好に回避することができる。
また、前記振動センサ90と共に、あるいはそれに代えて、別の個所に振動センサを設け、装着機本体12以外の構成要素、例えば、送りねじ,運動伝達機構等の振動周波数を検出し、その検出結果に基づいて、その別の構成要素の状態(例えば支持状態)が異常であるとの判定が行われるようにすることも可能である。それにより、適切な時期に適切なメンテナンスを行い、スループットや装着精度の低下を事前に回避することができる。
Claims (13)
- 制御対象装置と、その制御対象装置を制御する制御装置とを含む自動システムであって、 前記制御装置が、
前記制御対象装置を制御する制御指令を出力する制御器と、
その制御器から出力される制御指令と前記制御対象装置から出力される制御対象出力とに基づいて制御対象装置の状態を示す1つ以上のパラメータを推定する適応同定器と、
その適応同定器により推定された前記1つ以上のパラメータに基づいて、前記制御器から前記制御対象装置への前記制御指令を、その1つ以上のパラメータの変化にかかわらず前記制御対象装置が予定通りの作動を行うように補償する適応補償器と
を含む適応制御装置であり、かつ、前記適応同定器により推定された前記1つ以上のパラメータに基づいて、前記制御対象装置がメンテナンスを要する状態となったことを検出する要メンテナンス検出部を含むことを特徴とする自動システム。 - さらに、前記適応同定器により推定された前記1つ以上のパラメータに基づいて、前記制御対象装置のメンテナンスを要する個所である要メンテナンス個所を推定する要メンテナンス個所推定部を含む請求項1に記載の自動システム。
- 前記要メンテナンス個所推定部による推定結果に基づいて、前記制御対象装置の要メンテナンス個所を報知する要メンテナンス個所報知部と、必要なメンテナンスを自動で実施する自動メンテナンス部との少なくとも一方を含む請求項2に記載の自動システム。
- 前記1つ以上のパラメータが前記制御対象装置の相対移動部における摩擦力を含み、前記要メンテナンス個所推定部により推定される要メンテナンス個所が前記相対移動部である請求項2または3に記載の自動システム。
- 前記相対移動部に対して必要なメンテナンスが前記相対移動部への潤滑剤の補給であり、その潤滑剤の補給が行われた後、前記要メンテナンス個所推定部により前記相対移動部が再び要メンテナンス個所として推定されるまでの経過時間と制御対象装置の累積運転時間との少なくとも一方である潤滑剤補給間隔を取得する潤滑剤補給間隔取得部と、
その潤滑剤補給間隔取得部により取得された潤滑剤補給間隔が設定間隔以下である場合に前記相対移動部が異常状態にあることを報知する異常報知装置と前記相対移動部の相対移動を禁止する相対移動禁止部との少なくとも一方と
を含む請求項4に記載の自動システム。 - 前記1つ以上のパラメータが電動アクチュエータのトルク定数あるいは推力定数を含み、前記要メンテナンス個所推定部により推定される要メンテナンス個所が前記電動アクチュエータ自体とその電動アクチュエータを冷却する冷却装置との少なくとも一方を含む請求項2ないし5のいずれかに記載の自動システム。
- 前記要メンテナンス個所が前記冷却装置の冷却ファンとフィルタとの少なくとも一方を含む請求項6に記載の自動システム。
- 前記電動アクチュエータ自体に対して必要なメンテナンスが、その電動アクチュエータを一旦停止させ、その停止から設定時間が経過した後におけるトルク定数あるいは推力定数の検出を含み、検出された定数の低下が不可逆的低下である場合に、電動アクチュエータに対するメンテナンスが当該電動アクチュエータの交換を含む請求項6または7に記載の自動システム。
- 前記1つ以上のパラメータが、前記制御対象装置の1つ以上の構成要素の固有振動数を含み、前記要メンテナンス個所推定部が、その1つ以上の構成要素の固有振動数が設定値以上変化した場合にその固有振動数を有する構成要素を前記要メンテナンス個所と推定する請求項2ないし8のいずれかに記載の自動システム。
- 制御対象装置が、固有振動数を互いに異にする複数の構成要素を含み、
前記要メンテナンス個所推定部が、
前記複数の構成要素の各々の固有振動数を各構成要素と対応付けて記憶した固有振動数記憶部と、
その固有振動数記憶部に記憶された複数の固有振動数の1つが設定量以上変化した場合に、その固有振動数に対応付けられている構成要素を要メンテナンス装置と推定する要メンテナンス構成要素推定部と
を含む請求項9に記載の自動システム。 - 前記1つ以上の構成要素が、レベリング装置を介して床面上に設置される前記制御対象装置の本体フレームを含み、前記要メンテナンス個所推定部がその本体フレームを要メンテナンス個所として推定する部分を含む請求項9または10に記載の移動システム。
- 前記制御対象装置が、回路基材に対して予め定められた作業を行う対回路基材作業機である請求項1ないし11のいずれかに記載の自動システム。
- 前記対回路基材作業機が、
回路基材を保持する基材保持装置と、
電子回路部品を保持する部品保持具およびその部品保持具と前記基材保持装置とを相対的に移動させる相対移動装置を備え、前記部品保持具により保持した電子回路部品を前記基材保持装置により保持された回路基材に装着する装着装置と
を含む電子回路部品装着機である請求項12に記載の自動システム。
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