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公开(公告)号：US5467355A
公开(公告)日：1995-11-14
申请号：US299082
申请日：1994-09-01
CPC分类号： G06F11/2257 , G03G15/55 , G03G2215/00118 , Y10S706/90 , Y10S706/911
摘要： In an image forming machine, an objective model storage device stores parameter data that represent elements of the machine and relationships among such parameters, and parameter membership functions, and fault diagnosis knowledge. A degradation storage device stores a fuzzy qualitative value for a parameter changed by degradation of an element of the machine. Preferably, degradation indicative data are converted into fuzzy qualitative values, and the value of the parameter changed by degradation is represented by a fuzzy qualitative value. The machine includes sensors for sensing functional states thereof, and providing state data representative of such states. The state data sensed by the sensors are converted into fuzzy qualitative values. Then, a fault judgement device determines whether or not a fault exists by comparing the obtained fuzzy qualitative values with the parameter data stored in the objective model storage device. If the fault judgement device determines that a fault exists, a fault diagnosis device performs fault diagnosis by utilizing, as an initial value, the value of the parameter changed by degradation. A specification device specifies fault causes by comparing the result of the diagnosis with the state data which was converted into the fuzzy qualitative values. Then, a repair device operates actuators of the machine to overcome the specified fault.
摘要翻译： 在图像形成机中，目标模型存储装置存储表示机器的要素的参数数据和这些参数之间的关系以及参数隶属函数以及故障诊断知识。 降级存储装置存储由于机器元件的劣化而改变的参数的模糊定性值。 优选地，降解指示数据被转换为模糊定性值，并且由劣化改变的参数值由模糊定性值表示。 该机器包括用于感测其功能状态的传感器，以及提供表示这种状态的状态数据。 由传感器感测到的状态数据被转换为模糊定性值。 然后，故障判断装置通过将获得的模糊定性值与存储在目标模型存储装置中的参数数据进行比较来判定是否存在故障。 如果故障判断装置判断为存在故障，故障诊断装置利用劣化改变的参数值作为初始值来进行故障诊断。 规范设备通过将诊断结果与转换为模糊定性值的状态数据进行比较来指定故障原因。 然后，修理装置操作机器的执行器以克服指定的故障。
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2.发明授权
公开(公告)号：US5452438A
公开(公告)日：1995-09-19
申请号：US833685
申请日：1992-02-11
CPC分类号： G06F11/079 , G03G15/55 , G06F11/0733 , G06F11/2257 , G03G2215/00118
摘要： The amount of degradation, converted into a fuzzy qualitative value, is found on the basis of state data sensed by sensors 1a, 1b and 1c and degradation data. The value of a parameter changed by the amount of degradation is represented by a fuzzy qualitative value. In addition, the state data is converted into a fuzzy qualitative value, and it is judged by the value whether or not a fault exists. As a result, if a fault exists, fault diagnosis is made utilizing, as an initial value the value, of the parameter changed by the amount of degradation, and the causes of the fault are specified by comparing the result of the diagnosis with the state data converted into the fuzzy qualitative value. The causes of the fault specified are repaired by operating corresponding actuators 6a, 6b and 6c. Since the causes of the fault are specified while handling the fuzzy qualitative value, the causes of the fault can be specified more precisely. Accordingly, it is possible to achieve an image forming apparatus in which autonomy is high and repair labor is reduced.
摘要翻译： 基于由传感器1a，1b和1c感测的状态数据和劣化数据，找到转换为模糊定性值的退化量。 由降解量改变的参数值由模糊定性值表示。 另外，状态数据被转换为模糊定性值，并且通过该值判断是否存在故障。 因此，如果存在故障，则利用故障诊断，作为初始值，通过将诊断结果与状态进行比较来指定参数的值，劣化量变化的值和故障的原因 数据转化为模糊定性价值。 通过操作相应的致动器6a，6b和6c来修理指定的故障的原因。 由于在处理模糊定性值时指定了故障原因，因此可以更精确地指定故障原因。 因此，可以实现自主性高并且修理劳动力降低的图像形成装置。
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3.发明授权Image forming apparatus having self-repair function and self-repair method for the apparatus 失效具有自修复功能的图像形成装置和装置的自修复方法
公开(公告)号：US5446523A
公开(公告)日：1995-08-29
申请号：US132351
申请日：1993-10-06
CPC分类号： G03G15/55 , G06F11/22 , G03G2215/00118 , G06F2201/815
摘要： In an image forming apparatus according to the present invention, a software portion incorporated in the apparatus is provided with a virtual case storage portion 12, to previously create virtual cases by a virtual case compiler 16 outside of the apparatus and store the virtual cases. Fault diagnosis is made by comparing fuzzy qualitative values into which the values of sensors are converted on the basis of fuzzy membership functions with the virtual cases. If a fault is diagnosed as a result of the comparison, repair operations for repairing the fault are read out from a work script table 15. In this case, operation information for repair are stored to correspond to each of a plurality of domains into which a state space which the apparatus can take up is divided. Accordingly, it is possible to correctly read out corresponding repair operations from the work script table 15 depending on which of the domains is a domain to which the present state of the apparatus belongs. As a result, a self-repair system can be constructed as a practical built-in type system, thereby to make it possible to reduce the scale of the system related to the fault diagnosis as well as to reduce time required for the fault repair.
摘要翻译： 在根据本发明的图像形成装置中，包含在装置中的软件部分设置有虚拟盒存储部分12，以预先通过设备外的虚拟案例编辑器16创建虚拟案例并存储虚拟案例。 通过比较基于模糊隶属函数与虚拟案例将传感器值转换成的模糊定性值进行故障诊断。 如果作为比较的结果诊断故障，则从工作脚本表15读出用于修复故障的修复操作。在这种情况下，存储用于修复的操作信息以对应于多个域中的每一个，其中 设备可以占用的状态空间是分开的。 因此，根据哪个域是设备的当前状态所属的域，可以从工作脚本表15正确读出相应的修复操作。 因此，可以将自修复系统构建为实用的内置式系统，从而可以减少与故障诊断相关的系统的规模，并且减少故障修复所需的时间。
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公开(公告)号：US5166934A
公开(公告)日：1992-11-24
申请号：US588191
申请日：1990-09-26
申请人： Tetsuo Tomiyama , Hiroyuki Yoshikawa , Yasushi Umeda , Yoshiki Shimomura , Yoshifumi Ishii , Hiroshi Kusumoto
发明人： Tetsuo Tomiyama , Hiroyuki Yoshikawa , Yasushi Umeda , Yoshiki Shimomura , Yoshifumi Ishii , Hiroshi Kusumoto
IPC分类号： G03G15/02 , G03G15/00 , G03G15/04 , G03G15/043 , G03G15/06 , G03G15/08 , G03G15/16 , G03G21/00 , G05B23/02 , G06F11/00 , G06F11/25
CPC分类号： G06F11/2257 , G03G15/55 , G06F11/0733 , G06F11/079 , G06F11/0793 , Y10S706/916
摘要： A system according to the invention has a plurality of sensors, a system control circuit and a plurality of actuators. State data, supplied from the sensors, is compared with characteristic data in the system control circuit. From this comparison, it is judged whether a fault has occurred depending upon whether the state data is relatively lower or higher. If a fault has occurred, fault inference fault is made on the basis of a comparison between qualitative data and fault diagnosis knowledge which are stored in the system control circuit. Then a judgement is made as to which of the elements in an image forming apparatus is abnormal. An actuator operating signal thereafter is generated as a result of this judgement.
摘要翻译： 根据本发明的系统具有多个传感器，系统控制电路和多个致动器。 从传感器提供的状态数据与系统控制电路中的特性数据进行比较。 从该比较，根据状态数据是否相对较低，判断是否发生了故障。 如果发生故障，则基于存储在系统控制电路中的定性数据和故障诊断知识之间的比较进行故障推断故障。 然后判断图像形成装置中的哪一个元素是否异常。 此后作为该判断的结果产生致动器操作信号。
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5.发明授权
公开(公告)号：US5623713A
公开(公告)日：1997-04-22
申请号：US403423
申请日：1995-03-14
申请人： Yoshiki Shimomura , Sadao Tanigawa , Yukihiro Mori , Toshimitsu Takakura , Yasushi Umeda , Tetsuo Tomiyama , Hiroyuki Yoshikawa
发明人： Yoshiki Shimomura , Sadao Tanigawa , Yukihiro Mori , Toshimitsu Takakura , Yasushi Umeda , Tetsuo Tomiyama , Hiroyuki Yoshikawa
CPC分类号： G03G15/55 , G06F11/0733 , G06F11/0793 , G06F11/2038 , Y10S706/904
摘要： The present invention makes it possible to make good self-repair on which little secondary effect is exerted by calculating a manipulated variable of a parameter at the time of the repair by a functional amount in an image forming apparatus having a self-repair function. When a fault occurs, control-type repair for operating a physical parameter is first made. In this repair, the physical parameter to be operated is searched for (n3). If the physical parameter to be operated is determined, a manipulated variable of the physical parameter is then calculated by a functional amount (n4). The manipulated variable of the parameter by the functional amount is determined by adjusting the degree to which a plurality of functions are developed. Therefore, a manipulated variable in which the development of the functions is most preferable as the entire apparatus is determined. If the fault cannot be repaired by the control type repair, functional redundancy type repair is made (n6, n7, n8, n9). In the functional redundancy type repair, priorities to repair candidates are determined by the functional amount.
摘要翻译： 本发明通过在具有自修复功能的图像形成装置中通过功能量的修复计算修正时的参数的操作变量，可以进行很少的二次效果的良好的自修复。 当发生故障时，首先进行操作物理参数的控制型修理。 在这个修复中，搜索要操作的物理参数（n3）。 如果要确定要操作的物理参数，则通过功能量（n4）计算物理参数的操纵变量。 功能量的参数的操作变量通过调整多个功能被开发的程度来确定。 因此，确定作为整个装置最优选功能发展的操作变量。 如果故障无法通过控制类型修复进行修复，则进行功能冗余类型修复（n6，n7，n8，n9）。 在功能冗余类型修复中，修复候选的优先级由功能量决定。
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6.发明授权Method of automatically creating control sequence software and apparatus therefor 失效自动创建控制序列软件及其设备的方法
公开(公告)号：US5548682A
公开(公告)日：1996-08-20
申请号：US194064
申请日：1994-02-09
申请人： Yasushi Umeda , Tetsuo Tomiyama , Hiroyuki Yoshikawa , Tomohiko Sakao , Yoshiki Shimomura , Sadao Tanigawa
发明人： Yasushi Umeda , Tetsuo Tomiyama , Hiroyuki Yoshikawa , Tomohiko Sakao , Yoshiki Shimomura , Sadao Tanigawa
CPC分类号： G05B19/0426 , G03G2215/00118
摘要： A method of automatically creating control sequence software required for a machine system controlled by a computer includes four algorithms, that is, "derivation of control sequence specification".fwdarw."derivation of a qualitative control sequence".fwdarw."addition of quantitative information (derivation of a quantitative control sequence)".fwdarw."generation of a C program". The qualitative control sequence is a state transition matrix following the time sequence. This qualitative control sequence is derived by making use of a qualitative inference system. A quantitative control sequence is obtained by adding quantitative time between states to the qualitative control sequence. Time information is calculated on the basis of design information of a machine portion stored in a design information database. As a result, it is possible to reduce the manual burden on the software development by using the present invention.
摘要翻译： 自动创建由计算机控制的机器系统所需的控制序列软件的方法包括四种算法，即“导出控制序列规范” - “导出定性控制序列” - “添加定量信息（推导） 的定量控制序列）“ - >”生成C程序“。 定性控制序列是时间序列之后的状态转移矩阵。 该定性控制序列是通过使用定性推理系统得出的。 通过在定性控制序列之间将状态之间的定量时间相加来获得定量控制序列。 时间信息是根据存储在设计信息数据库中的机器部分的设计信息来计算的。 结果，可以通过使用本发明来减少软件开发的手动负担。
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公开(公告)号：US5317368A
公开(公告)日：1994-05-31
申请号：US34398
申请日：1993-03-19
CPC分类号： G06F11/2257 , G03G15/55 , Y10S706/904 , Y10S706/912
摘要： According to the present invention, a self-diagnosis system for an image forming apparatus can make accurate fault diagnosis and is made smaller in size and higher in speed. For that purpose, a fault temporarily developed by the image forming apparatus is limited to a single fault assumption, all states which can exist on the image forming apparatus when the image forming apparatus develops the fault are previously simulated, and the results of the qualitative simulation are stored as a plurality of virtual cases in a virtual case storing portion 12. When the image forming apparatus is operated, detected values of sensors X, Vs and Ds are converted into fuzzy qualitative values, respectively, on the basis of membership functions stored in a membership function generating portion 13. The fuzzy qualitative values are compared with the virtual cases stored in the virtual case storing portion 12, to reason the cause of the fault. Accordingly, any of the virtual cases stored in the virtual case storing portion 12 is selected using the fuzzy qualitative values, thereby to make it possible to accurately specify the fault in a short time.
摘要翻译： 根据本发明，用于图像形成装置的自诊断系统可以进行准确的故障诊断，并使其尺寸更小并且速度更高。 为此，由图像形成装置临时显影的故障被限制为单个故障假设，预先模拟图像形成装置发生故障时可能存在于图像形成装置上的所有状态，并且定性模拟的结果 被存储在虚拟案例存储部分12中的多个虚拟案例中。当操作图像形成装置时，传感器X，Vs和Ds的检测值分别根据存储在 隶属函数产生部分13.将模糊定性值与存储在虚拟案例存储部分12中的虚拟案例进行比较，以说明故障的原因。 因此，使用模糊定性值来选择存储在虚拟案例存储部分12中的任何虚拟案例，从而可以在短时间内精确地指定故障。
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公开(公告)号：US5396314A
公开(公告)日：1995-03-07
申请号：US989512
申请日：1992-12-11
申请人： Yasushi Umeda , Tetsuo Tomiyama , Hiroyuki Yoshikawa , Yuichi Koike , Yoshiki Shimomura , Kazuto Hori , Sadao Tanigawa
发明人： Yasushi Umeda , Tetsuo Tomiyama , Hiroyuki Yoshikawa , Yuichi Koike , Yoshiki Shimomura , Kazuto Hori , Sadao Tanigawa
IPC分类号： B41J29/46 , G03G15/00 , G03G21/00 , G05B9/02 , G05B9/03 , G06F11/00 , G06F11/25 , H04N1/00 , G03G15/02 , G03G15/04
CPC分类号： G03G15/50 , G03G15/55 , G05B9/03 , G06F11/2257 , G06F11/2038
摘要： An image forming apparatus has a functional redundancy system by which an inherent function normally performed by a certain portion is performed as a potential function by another portion, when such certain portion no longer can be perform its inherent function. In a first operative sequence, portions in the image forming apparatus perform their respective inherent functions. However, where a function of a certain portion in the apparatus is lost, for example, where a fault occurs and a particular element has failed, operation of other portions in the apparatus are controlled according to a second sequence. In the second sequence, the inherent function of the portion which has failed is replaced by the potential function of another portion in the apparatus.
摘要翻译： 图像形成装置具有功能冗余系统，通过该功能冗余系统，当某一部分不再能够执行其固有功能时，由某一部分正常执行的固有功能作为其他部分的潜在功能被执行。 在第一操作顺序中，图像形成装置中的部分执行它们各自的固有功能。 然而，在设备中某个部分的功能丢失的情况下，例如，发生故障并且特定元件发生故障的情况下，根据第二顺序来控制设备中其他部分的操作。 在第二个序列中，故障部分的固有功能由设备中另一部分的潜在功能代替。
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公开(公告)号：US5239547A
公开(公告)日：1993-08-24
申请号：US588177
申请日：1990-09-26
IPC分类号： G03G21/00 , G03G15/00 , G03G15/02 , G03G15/04 , G03G15/043 , G03G15/06 , G03G15/08 , G03G15/16 , G05B23/02 , G06F11/00 , G06F11/25 , H04N1/00
CPC分类号： G06F11/2257 , G03G15/55 , G06F11/0733 , G06F11/079 , Y10S706/911
摘要： The system of the present invention has a plurality of sensors 1a, 1b and 1c and a system control circuit which includes a case memory portion and a work script memory portion. In response to application of state data from the sensors 1a, 1b and 1c, the system converts the state data into symbolic data. Then the symbolic data is evaluated to judge whether or not a fault exists and to specify a fault symptom. As a result of the judgement, a fault symptom and a fault in the objective machine are determined. Thereafter, cases stored in the case memory portion are retrieved on the basis of the results of the fault diagnosis and a fault simulation. A case which closely resembles the present state of the objective machine is selected. Then, repair work described in the selected case is executed.
摘要翻译： 本发明的系统具有多个传感器1a，1b，1c和系统控制电路，其包括壳体存储器部分和工作脚本存储器部分。 响应于来自传感器1a，1b和1c的状态数据的应用，系统将状态数据转换为符号数据。 然后对符号数据进行评估，判断是否存在故障，并指定故障现象。 作为判断的结果，确定了目标机中的故障症状和故障。 此后，基于故障诊断和故障模拟的结果来检索存储在案例存储器部分中的案例。 选择非常类似于目标机器的当前状态的情况。 然后，执行在所选情况下描述的修理工作。
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10.发明授权Apparatus having self-repairing function and method of self repairing the same 失效具有自修复功能的装置及其自身修复方法
公开(公告)号：US5613047A
公开(公告)日：1997-03-18
申请号：US344812
申请日：1994-10-11
申请人： Yoshiki Shimomura , Sadao Tanigawa , Yukihiro Mori , Yasushi Umeda , Tetsuo Tomiyama , Hiroyuki Yoshikawa
发明人： Yoshiki Shimomura , Sadao Tanigawa , Yukihiro Mori , Yasushi Umeda , Tetsuo Tomiyama , Hiroyuki Yoshikawa
CPC分类号： G06F11/2257 , G03G15/55
摘要： According to the present invention, a concept of functional quantities indicative of quantified functional degrees of such lower-level functions as "clearer characters", "cleaner background", and "thicker characters", which are subordinating to a qualification-oriented function of "more beautiful characters". Characteristic patterns of functional quantities F1, F2 and F3 of the lower-level functions for physical parameters (for example, the surface potential of a photoreceptor body) are prepared. When a fault repair is implemented by changing a value of a physical parameter, a tradeoff occurs between lower-level functions which are influenced by the physical parameter. That is, taking into account the functional quantities F1, F2 and F3 of the lower-level functions, the value of the physical parameter is set so that the functional quantity of the function of "more beautiful characters" is maximized. By introducing the concept of the functional quantities indicative of the quantified functional degrees of the functions, a flexible self-repairing function can be realized, thereby optimizing a repair operation.
摘要翻译： 根据本发明，指示了诸如“更清晰的人物”，“更清洁的背景”和“较粗的人物”等低级功能的量化功能度的功能量的概念，这些功能度属于“ 更美丽的人物“。 准备用于物理参数（例如，感光体的表面电位）的较低级功能的功能量F1，F2和F3的特征图案。 当通过改变物理参数的值来实现故障修复时，会在受物理参数影响的较低级别的功能之间进行权衡。 也就是说，考虑到下层功能的功能量F1，F2和F3，物理参数的值被设置为使得“更美丽的人物”的功能的功能量最大化。 通过引入表示功能的量化功能度的功能量的概念，可以实现灵活的自修复功能，从而优化修复操作。
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