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    • 52. 发明公开
    • Fault diagnosing apparatus and method
    • 故障诊断装置和方法
    • EP0428134A3
    • 1993-02-24
    • EP90121714.1
    • 1990-11-13
    • Komatsu Ltd.YAMATAKE-HONEYWELL CO. LTD.
    • Miyata, HiroshiAshikawa, Takeshi
    • G06F15/20G06F11/22
    • G06F11/2257G05B19/0428G05B2219/23157G05B2219/24018G05B2219/24053G05B2219/24085G05B2219/24086G05B2219/24087G05B2219/24093
    • A fault diagnosing apparatus includes a fault tree, a storage section (3a), a read control section (3), a display section (4), a designating section (3), and a rewrite section (3). The fault tree is designed such that a plurality of choices are set with respect to one question associated with a cause of a fault of a fault diagnosing target, answers and choices branch off from each of the choices, and final choices reach causes of the fault. The storage section (3a) stores fault repair items with respect to the causes of the fault. In response to an input operation to select one of the choices, the read control section (3) reads out the selected choice, a corresponding question, choices branching off therefrom, and fault repair items. The display section (4) displays the question, the choices, and the fault repair items which are read out by the read control section.
    • 故障诊断装置包括故障树,存储部分(3a),读取控制部分(3),显示部分(4),指定部分(3)和重写部分(3)。 故障树被设计成使得相对于与故障诊断目标的故障的原因相关联的一个问题设置多个选择,从每个选择分支的答案和选择,并且最终选择到达故障原因 。 存储部(3a)存储关于故障原因的故障修理项目。 响应于选择选择之一的输入操作,读取控制部分(3)读出所选择的选择,对应的问题,从其分支的选项以及故障修复项目。 显示部(4)显示由读取控制部读出的问题,选择和故障修复项目。
    • 59. 发明授权
    • Self-diagnosing apparatus for refrigerator
    • 冰箱自诊断仪
    • US06553774B1
    • 2003-04-29
    • US09508115
    • 2000-03-20
    • Haruyuki IshioOsamu Yamamoto
    • Haruyuki IshioOsamu Yamamoto
    • F25B4902
    • G05B19/0428F25B49/005F25D2700/02G05B2219/24042G05B2219/24053G05B2219/24054G05B2219/24086
    • To provide a self-diagnosing apparatus for a refrigerator which self-diagnoses an operation condition and advises a user of an appropriate improvement action if there is an abnormal. First, a detector such as an internal temperature sensor detects a plurality of condition-indicative quantities with respect to the refrigerator, and the condition-indicative quantities are stored in a memory part for a predetermined period. A diagnostic device such as a diagnosis calculation value judging part compares the condition-indicative quantities or a diagnosis calculation value which is calculated based on the condition-indicative quantities with a predetermined threshold value, and judges whether the operation condition of the refrigerator is normal or abnormal based on a result of the comparison. At this stage, if the condition-indicative quantities covering the predetermined past period which are stored in the memory are used as the condition-indicative quantities for the diagnosis, it is possible to accurately diagnose without influence of a condition-indicative quantity which suddenly appears. When it is judged that there is an abnormal condition as a result of the diagnosis, an improvement action which is preliminary determined for the abnormal condition is selected. The selected action is displayed visually or as a sound by an outputting device such as a sound emitter. Where a re-diagnosis is executed after a predetermined time since the abovementioned diagnosis and the outputting device output the improvement action based on a result of the re-diagnosis, it is possible to diagnose with an enhanced reliability.
    • 提供一种用于冰箱的自诊断装置,其自诊断操作条件并且如果存在异常则向用户通知适当的改进动作。 首先,诸如内部温度传感器的检测器检测相对于冰箱的多个条件指示量,并且将条件指示量存储在存储器部分中一段预定时间段。 诸如诊断计算值判断部分的诊断装置将条件指示量或基于条件指示量计算的诊断计算值与预定阈值进行比较,并且判断冰箱的操作条件是否正常或 基于比较结果的异常。 在这个阶段,如果将存储在存储器中的预定的过去时段的条件指示量用作诊断的条件指示量,则可以在不影响突然出现的状态指示量的情况下进行准确诊断 。 当判定为诊断结果为异常状况时,选择对异常状态进行初步确定的改善动作。 所选择的动作通过诸如声音发射器的输出装置在视觉上或作为声音显示。 在从上述诊断开始的预定时间之后执行重新诊断并且输出装置基于重新诊断的结果输出改进动作的情况下,可以以更高的可靠性进行诊断。