WO2017124701A1 - 具有故障监控功能的电气设备、电气系统以及终端设备 - Google Patents

具有故障监控功能的电气设备、电气系统以及终端设备 Download PDF

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Publication number
WO2017124701A1
WO2017124701A1 PCT/CN2016/088586 CN2016088586W WO2017124701A1 WO 2017124701 A1 WO2017124701 A1 WO 2017124701A1 CN 2016088586 W CN2016088586 W CN 2016088586W WO 2017124701 A1 WO2017124701 A1 WO 2017124701A1
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Prior art keywords
electrical device
unit
operation data
electrical
data
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PCT/CN2016/088586
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English (en)
French (fr)
Inventor
党文婷
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京东方科技集团股份有限公司
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Priority to US15/329,357 priority Critical patent/US10498129B2/en
Publication of WO2017124701A1 publication Critical patent/WO2017124701A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/005—Circuits arrangements for indicating a predetermined temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G01R31/2825—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere in household appliances or professional audio/video equipment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • H02H5/044—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using a semiconductor device to sense the temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature

Definitions

  • the present invention relates to the field of fault monitoring technology, and more particularly to an electrical device, an electrical system, and a terminal device having a fault monitoring function.
  • the embodiment of the present invention proposes an electrical device, an electrical system including the electrical device, and a corresponding terminal device.
  • an embodiment of the present invention provides an electrical device including: a sensing unit for sensing operational data of an electrical device during operation, the operational data including electrical power of the electrical device with the electrical device during operation a voltage or current associated with the component or a temperature of the electrical device; a storage unit for storing the operational data to analyze the cause of the failure using the stored operational data in the event of a failure of the electrical device.
  • the storage unit further stores time information synchronized with the operation data sensed by the sensing unit.
  • the electrical device further includes a control unit electrically coupled to the sensing unit and the storage unit, the control unit stopping the electrical device operation when the operational data exceeds a corresponding threshold.
  • the sensing unit includes a temperature sensor that is sensed by the temperature sensor When the temperature exceeds the first temperature threshold, the control unit stops the electrical equipment operation.
  • control unit initiates electrical device operation.
  • the electrical device may further include a communication unit capable of communicating with the external device to be capable of transmitting the operation data stored in the storage unit to the external device.
  • the electrical device may further include a determination unit for determining whether the operation data from the sensing unit changes, and the storage unit stores only the operation data in which the change has occurred.
  • the electrical device may further include a calculation unit configured to calculate a change value of the corresponding operation data when the operation data changes; and a comparison unit configured to change the change value of the corresponding operation data calculated by the calculation unit and the change threshold Comparison; the storage unit stores only operational data whose change value exceeds the change threshold.
  • embodiments of the present invention provide an electrical system comprising at least one electrical device as described in the preceding embodiments and a server, wherein each electrical device is capable of communicating with a server to transmit operational data to a server.
  • the electrical device may include a receiving unit configured to receive an instruction from the server to instruct transmission operation data, and a transmitting unit to transmit the operation data to the server in response to receiving the instruction.
  • Embodiments of the present invention also provide a terminal device that can be used to receive operational data from an electrical device as described in the foregoing embodiments to analyze the cause of the fault using the received operational data in the event of a failure of the electrical device.
  • the terminal device may include an analysis unit for analyzing operation data received from the electrical device to obtain a cause of the failure, and an output unit for outputting information indicating the failure and the cause of the failure.
  • the terminal device may include a determining unit for determining whether the corresponding operation data received from the electrical device changes, and at this time, the analyzing unit analyzes only the changed operational data.
  • the terminal device may further include a calculating unit, configured to calculate a change value of the corresponding operation data when the operation data changes; and a comparison unit, configured to change the change value of the corresponding operation data calculated by the calculation unit and the change threshold In comparison, the analysis unit analyzes only the operational data whose change value exceeds the change threshold.
  • the terminal device may further include a memory in which a correspondence between a change in the corresponding operation data value and a cause of the failure is stored, and the analysis unit determines the cause of the failure based on the correspondence.
  • the electrical device, the electrical system or the corresponding terminal device provided by the embodiments of the present invention provides a basis for conveniently and quickly analyzing the cause of the failure of the electrical device, and can improve the accuracy and efficiency of the failure cause analysis. In addition, it can provide reference for the improvement of the design of electrical equipment in the future.
  • Figure 1 schematically illustrates a partial constituent unit included in an electrical device in accordance with one embodiment of the present invention
  • FIG. 2 schematically shows constituent units included in a controller of an electric device according to another embodiment of the present invention
  • FIG. 3 is a schematic illustration of an electrical system including an electrical device in accordance with one embodiment of the present invention.
  • Fig. 4 schematically shows the constituent elements of a terminal device according to an embodiment of the present invention.
  • the electrical devices described herein are not limited to a particular device, which may be any device currently available that requires operation with electrical energy.
  • household appliances such as air conditioners, televisions, refrigerators, washing machines, and tablets, as well as displays used in subways, buses, airlines, ships, and the like, such as various players that individuals can carry with them.
  • Portable devices such as mobile phones, etc.
  • the embodiments described below can be applied to these electrical devices.
  • Fig. 1 schematically shows a partial constituent unit of an electrical device according to an embodiment of the present invention.
  • the electrical device 1 may include a sensing unit 10 for sensing operation data of the electrical device 1 during operation, and a storage unit 30 for storing operation data to The failure cause is used to analyze the cause of the failure using the stored operational data, which may include the voltage or current associated with the electrical components of the electrical device or the temperature of the electrical device during operation of the electrical device.
  • Embodiments of the present invention do not limit the operational data sensed by the sensing unit 10 because the operational data to be sensed may vary with the particular electrical device.
  • the operational data that can be sensed may include voltage, current, temperature, and may also include humidity, air supply volume, or a certain resistance value on the circuit board.
  • the sensing unit 10 may be any sensor capable of sensing various operational data, such as a voltage sensor, a current sensor, a temperature sensor, a humidity sensor, and the like.
  • the electrical device 1 can include a plurality of different types of sensing units 10.
  • the sensing unit 10 can sense the voltage or current associated with the electrical components of the electrical device during operation of the electrical device, particularly the voltage at the critical electrical component or electrical component that is susceptible to damage to the electrical device. Or current.
  • the voltage at the drive board, the output current of the drive board, the temperature within the display, and the like can be sensed.
  • the voltage at the motherboard, power board, and backlight in the display can also be sensed. Therefore, embodiments of the present invention do not limit the electrical components in which the operational data is sensed. For different electrical devices, different electrical components may be selected for sensing of operational data.
  • the operation data sensed by the sensing unit 10 can be converted into digital values and stored in the storage unit 30 in the electrical device 1.
  • the operational data sensed or acquired by the sensing unit 10 may be converted to a numerical signal via an A/D converter (eg, included in the controller 20) and then stored in the storage.
  • A/D converter eg, included in the controller 20
  • Storage unit 30 can be any suitable storage medium including, but not limited to, ROM, RAM, EEPROM, and the like.
  • the sensing unit 10 can sense the electrical device 1 The data is manipulated until the electrical device has failed, and the associated operational data can be stored in the storage unit 30 therein. Therefore, after the failure of the electrical device, the operational data stored in the storage unit can be utilized to analyze the possible cause of the failure, and can provide a reference for improving the design of the electrical device. Compared with the prior art, by using these operational data, the analysis of the cause of the malfunction can be performed more conveniently, and the efficiency of repairing the faulty electrical device is also greatly improved.
  • the storage unit may also store time information synchronized with the operational data sensed by the sensing unit. That is to say, the storage unit can record the operation data together with the time information at the time. In this way, when the cause of the failure may be analyzed later, the change of the corresponding operation data over time can be known, so that the cause of the failure can be analyzed more specifically and accurately.
  • the electrical device may be protected against the occurrence of the fault based on the operational data sensed by the sensing unit.
  • the electrical device may further include a control unit electrically coupled to the sensing unit and the storage unit, and the control unit may stop the electrical device operation when the operational data exceeds a corresponding threshold.
  • the control unit 20 can be electrically coupled to the sensing unit 10 and the storage unit 30, which can receive and process the operational data sensed by the sensing unit 10 and store it in the storage unit 30. When the controller 20 determines that a certain operational data exceeds a predetermined threshold set in advance, it can turn off the electrical equipment to protect the electrical equipment from malfunction or damage.
  • the controller 20 can issue a control signal to disconnect the power circuit of the driving board or the switch on the power supply circuit of the power board, thereby making the electrical
  • the device stops working and the drive board of the display may be burnt.
  • the sensing unit may include a temperature sensor that stops the electrical device operation when the sensed temperature exceeds the first temperature threshold.
  • Excessive temperature may mean that electrical equipment may be faulty, or this excessive temperature may be temporarily caused by some external reason, to avoid electrical equipment operating at excessive temperature, and to provide complete equipment for electrical equipment. Protection and extend the life of electrical equipment.
  • the operation of the electrical device may be resumed after the temperature of the electrical device drops to a normal temperature, and thus, in another implementation, the control unit activates the electrical device when the temperature sensed by the temperature sensor is below a second temperature threshold operating.
  • the electrical device can include a communication unit capable of communicating with the external device to enable transmission of operational data stored in the storage unit to the external device.
  • the electrical device 1 may include a communication unit 40 such that operational data stored in the storage unit 30 may be transmitted to the external device via the communication unit 40, and thus, may be conveniently on any suitable external device Analyze the cause of the fault without being limited to electrical equipment.
  • Communication unit 40 may include, but is not limited to, a USB interface, a Bluetooth interface, an infrared interface, a network interface, and the like.
  • the electric device may further include a judging unit that judges whether the operation data from the sensing unit changes, and the storage unit stores only the operation data in which the change has occurred.
  • the electrical equipment may be in a normal working state most of the time, and the operation data sensed by the sensing unit at this time does not indicate the fault state of the electrical equipment. Therefore, if all the operational data of the electrical equipment is stored until the electrical equipment has failed, the amount of data that is ultimately stored may be quite large, which may cause trouble or inefficiency in the analysis of the cause of the malfunction, and store these large amounts of The operational data also imposes high requirements on the capacity of the storage unit, resulting in an increase in cost. Therefore, as shown in FIG.
  • the electrical device may further include a judging unit 201 for judging whether the operation data from the sensing unit changes, and the storage unit stores only the operation data in which the change has occurred. For example, the judging unit 201 may compare the values of two consecutive pieces of operation data from the sensing unit, such that a plurality of corresponding operation data having the same value may not be stored, and the storage unit stores only the operation data that has changed. These changed operational data may indicate the occurrence or presence of a fault.
  • the determination unit 201 is included in the controller 20 in FIG. 2, in other embodiments, the determination unit 201 may be located in other components of the electrical device or as separate components. Alternatively, other means may be employed to reduce the amount of data to be stored in the storage unit 30, for example, periodically covering operational data within the storage unit of the electrical device, or the sensing unit may only be performed for a specified period of time. Sensing operational data.
  • the electrical device may further include a calculation unit configured to calculate a change value of the corresponding operation data when the operation data changes; and a comparison unit configured to calculate the corresponding operation data calculated by the calculation unit The change value is compared with the change threshold, at which time the storage unit stores only the operational data whose change value exceeds the change threshold.
  • the electrical device may further include a calculation unit 202 and a comparison unit 203.
  • the determination unit 201 determines that the operation data changes
  • the calculation unit 202 may calculate a change value of the corresponding operation data
  • the comparison unit 203 may calculate The resulting change value is compared with the change threshold, so that the operational data whose change value exceeds the change threshold is stored, and other operational data is discarded.
  • the amount of data to be stored by the storage unit can be further reduced, which is advantageous for simplicity.
  • Analysis of the causes of failures improve the efficiency of failure analysis.
  • the operational data sensed by the sensing unit may be affected by the operating environment and vary within a small range. Therefore, it is possible to filter out some possibilities by using a reasonably selected change threshold.
  • Operating data that does not indicate an electrical device failure can improve the efficiency of the failure analysis, and the possibility of missing operational data related to the failure can be minimized.
  • the change threshold may also be dynamically adjusted according to different operational data, the operating environment of the electrical device, and the service life, for example, when the electrical device is operated after a long period of use or in a harsh environment.
  • the change value of the related operation data in the normal operation state may also increase.
  • the corresponding change threshold may be increased to further reduce the amount of operation data to be stored, which is convenient for analysis of the cause of the failure.
  • the electrical device described in the above embodiments of the present invention may constitute an electrical system, for example, a display on a plurality of public transportation vehicles, or a plurality of display devices in a subway station or a subway car, in order to facilitate failure of the plurality of electrical devices. Monitoring, the operational data related to each electrical device can be centrally stored and managed. Accordingly, another embodiment of the present invention provides an electrical system including at least one electrical device as described in the above embodiments and a server, each electrical device being capable of communicating with a server to transmit operational data to a server.
  • Fig. 3 schematically shows two electrical devices 1 and a server 2, each of which is capable of communicating with the server 2 for data transmission.
  • the server 2 can also send an instruction to each electrical device 1.
  • Each electrical device 1 may include a receiving unit 40 for receiving an instruction from the server 2 indicating transmission of operational data; and a transmitting unit 50 for transmitting operational data to the server 2 in response to receiving the instruction. It will be appreciated that communication between the server 2 and each electrical device 1 can be performed using any communication technology currently known to those skilled in the art, including wired and wireless communication.
  • all operational data sensed by the electrical device 1 can be transmitted to the server 2 in real time or periodically without the need to process the operational data on the electrical device 1 when one or more electrical devices 1 occur
  • the failure operation analysis can be performed on the server 2 using the relevant operational data.
  • a terminal device matched with it can be designed to receive and store operational data related to the electrical device, and use the operational data to diagnose and analyze the cause of the failure of the electrical device on the terminal device. This may be especially useful for household electrical equipment. Therefore, embodiments of the present invention also propose A terminal device for receiving operational data from an electrical device as described in the foregoing embodiments to analyze a cause of failure using the received operational data in the event of a failure of the electrical device.
  • the terminal device can be any electronic device with data transmission capabilities including, but not limited to, a mobile phone, a tablet, a laptop, and the like.
  • the fault cause analysis function can be integrated into the terminal device and provide information about the cause of the fault in the event of a failure of the electrical device.
  • the terminal device 3 may include an analyzing unit 32 for analyzing operational data received from the electrical device 1 to obtain a cause of the fault; and an output unit 33 for outputting the indicated fault and the cause of the fault.
  • Information may be a software implemented unit that can determine the cause of the failure of the electrical device 1 by means of a failure cause analysis method or algorithm well known to those skilled in the art, and the output unit 33 can be a display that provides text or other graphical or signal information. unit.
  • the functions of the determining unit, the calculating unit and the comparing unit described in the foregoing embodiments of the electrical device can also be integrated into the terminal device 3 to reduce the amount of operating data to be stored and analyzed by the terminal device 3, which is convenient for electrical Analysis of the cause of the failure of the equipment. Therefore, in other embodiments, the terminal device may include a determining unit 31 for determining whether the corresponding operational data received from the electrical device changes, and at this time, the analyzing unit 32 analyzes only the changed operational data.
  • the terminal device may further include a calculating unit 34, configured to calculate a change value of the corresponding operation data when the operation data changes; and a comparison unit 35, configured to change the change value of the corresponding operation data calculated by the calculation unit 34 The change threshold comparison; at this time, the analysis unit 32 analyzes only the operational data whose change value exceeds the change threshold.
  • a calculating unit 34 configured to calculate a change value of the corresponding operation data when the operation data changes
  • a comparison unit 35 configured to change the change value of the corresponding operation data calculated by the calculation unit 34 The change threshold comparison; at this time, the analysis unit 32 analyzes only the operational data whose change value exceeds the change threshold.
  • the terminal device 3 may further include a memory 36 in which a correspondence between the change of the corresponding operation data and the cause of the failure is stored; at this time, the analyzing unit 32 determines the cause of the failure based on the correspondence relationship.
  • This embodiment can provide an automated fault cause analysis system that can automatically give the most likely cause of the fault without human intervention.
  • the correspondence between the change of the corresponding operation data and the cause of the failure can be realized by the method of machine learning. For example, some historical operation data may be provided for the terminal device 3 to learn, which includes not only operational data sensed by the sensing unit of the electrical device, but also real failure cause data that can be obtained from the maintenance personnel.
  • the terminal The device 3 can automatically change the change of the operation data and the cause of the fault, thereby improving the accuracy of the fault detection and improving the efficiency of the fault cause analysis.
  • the above embodiments of the present invention provide an electrical device, an electrical system, or a corresponding terminal device to provide a basis for conveniently and quickly analyzing the cause of failure of the electrical device, and can improve the accuracy and efficiency of the failure cause analysis. At the same time, it can provide reference for the improvement of the design of electrical equipment in the future. For example, when the sensed operational data indicates that a certain switching device of the electrical device is often damaged by overcurrent, a switching device having a higher rated current may be selected for use in subsequent electrical devices to improve the design of the electrical device.

Abstract

一种电气设备（1）、电气系统以及对应的终端设备（3）。电气设备（1）包括感测单元（10），用于感测电气设备（1）在操作过程中的操作数据，操作数据包括电气设备（1）在操作过程中与电气设备（1）的电部件相关的电压、电流或温度；以及存储单元（30），用于存储操作数据，以在电气设备（1）发生故障时利用所存储的操作数据分析故障原因。该电气设备（1）可减轻或缓解现有技术中的电气设备在发生故障之后难以确定其故障原因的问题。

Description

具有故障监控功能的电气设备、电气系统以及终端设备 技术领域
本发明涉及故障监控技术领域，更具体地涉及具有故障监控功能的电气设备、电气系统以及终端设备。
背景技术
在日常生活中，人们会接触到各种各样的电气设备，例如，在家庭中使用的空调、电视机、冰箱、洗衣机、平板电脑之类的家电电器，以及在地铁或公交系统中使用的显示器，个人可以随身携带的各种播放器、移动电话等等。在使用的过程中，这些电气设备经常由于某种原因而出现故障现象，甚至在使用的初期就出现故障。例如，显示器、移动电话出现黑屏，冰箱、洗衣机等不能正常启动，等等。出现这些故障现象之后，通常需要对已故障的电气设备进行检查测试以便得出故障原因，甚至需要通过实验才能找到故障原因，从而对故障电气设备进行修复。例如，可能需要对电气设备的硬件进行解剖或进行故障现象的模拟。显然，这种确定故障原因的解决方案可能会过度依赖于经验，过程也可能比较繁琐，在效率方面比较低。
发明内容
为了减轻或缓解现有技术中的电气设备在发生故障之后难以确定其故障原因的问题，本发明的实施例提出了一种电气设备、包括该电气设备的电气系统以及对应的终端设备。
在一个方面，本发明的实施例提供了一种电气设备，包括：感测单元，用于感测电气设备在操作过程中的操作数据，操作数据包括电气设备在操作过程中与电气设备的电部件相关的电压或电流或电气设备的温度；存储单元，用于存储所述操作数据，以在电气设备发生故障时利用所存储的操作数据分析故障原因。
进一步地，存储单元还存储与感测单元所感测的操作数据同步的时间信息。
在另一实施例中，电气设备进一步包括与感测单元、存储单元电连接的控制单元，当操作数据超过对应的阈值时，控制单元停止电气设备操作。
进一步地，感测单元包括温度传感器，当温度传感器所感测到的 温度超过第一温度阈值时，控制单元停止电气设备操作。
进一步地，当温度传感器所感测的温度低于第二温度阈值时，控制单元启动电气设备操作。
根据本发明的另一实施例，电气设备可进一步包括能够与外部设备通信的通信单元，以能够将在存储单元中存储的操作数据传输给外部设备。
根据本发明的又一实施例，电气设备进一步可包括判断单元，用于判断来自感测单元的操作数据是否变化，存储单元仅存储发生变化的操作数据。
进一步地，电气设备可进一步包括计算单元，用于在操作数据发生变化时计算对应的操作数据的变化值；以及比较单元，用于将计算单元计算出的对应的操作数据的变化值与变化阈值比较；存储单元仅存储变化值超过所述变化阈值的操作数据。
另一方面，本发明的实施例提供了一种电气系统，包括至少一个如前述实施例所述的电气设备以及服务器，其中每个电气设备能够与服务器通信以将操作数据传输至服务器。
进一步地，电气设备可包括接收单元，用于接收来自服务器的指示传输操作数据的指令；以及发送单元，用于响应于接收到指令而将操作数据传输至服务器。
本发明的实施例还提供了一种终端设备，该终端设备可用于从如前述实施例所描述的电气设备接收操作数据，以在电气设备发生故障时利用所接收的操作数据分析故障原因。
进一步地，终端设备可包括分析单元，用于分析从电气设备接收到的操作数据以得到故障原因；以及输出单元，用于输出指示故障以及故障原因的信息。
在另一实施例中，终端设备可包括判断单元，用于判断从电气设备接收到的相应的操作数据是否变化，此时分析单元仅分析发生变化的操作数据。
进一步地，终端设备可进一步包括计算单元，用于在操作数据发生变化时计算对应的操作数据的变化值；以及比较单元，用于将计算单元计算出的对应的操作数据的变化值与变化阈值比较，此时分析单元仅分析变化值超过变化阈值的操作数据。
在又一实施例中，终端设备可进一步包括存储器，其中存储有相应的操作数据值的变化与故障原因之间的对应关系，分析单元基于所述对应关系确定故障原因。
本发明的各实施例提供的电气设备、电气系统或对应的终端设备为方便、快速地分析电气设备发生故障的故障原因提供了基础，并可提高故障原因分析的准确性和效率。此外，可以为今后电气设备的设计方面的改进提供参考。
附图说明
下面，参考附图更详细地并且通过非限制性的示例方式描述本发明的实施例，以提供对本发明的原理和精神的透彻理解。需要说明的是，各个附图所示的特征和结构并不代表相应的部件和元件的实际形状和尺寸，而是仅仅是用以解释本发明的实施例的原理。
图1示意性地图示根据本发明的一个实施例的电气设备所包括的部分组成单元；
图2示意性地示出根据本发明的另一实施例的电气设备的控制器中所包括的组成单元；
图3示意性地示出了根据本发明的一个实施例的包括电气设备的电气系统；
图4示意性地示出了根据本发明的一个实施例的终端设备的组成单元。
具体实施方式
下面，通过示例的方式来详细说明本发明的具体实施例。应当理解的是，本发明的实施例不局限于以下所列举的示例，本领域技术人员利用本发明的原理或精神可以对所描述的各实施例进行修改和变型，得到形式不同的其它实施例，显然，这些实施例都落入本发明要求保护的范围。
此外，需要说明的是，本文所参考的附图是为了说明和解释本发明的实施例的需要，各个附图并不代表电气设备的实际结构，附图所体现的每个单元之间的连接仅仅用于示意性地说明本发明的实施例，并不构成对本发明的保护范围的限制。
正如之前所提到的，本文所描述的电气设备并不限于某一种具体的设备，其可以是当前可以获得的任何需要利用电能进行操作的设备。 例如，在家庭使用的空调、电视机、冰箱、洗衣机、平板电脑之类的家用电器，以及在地铁、公交、航空、轮船等交通工具中使用的显示器，个人可以随身携带的诸如各种播放器、移动电话之类的便携式设备等等。换言之，以下描述的实施例可以适用于这些电气设备。
图1示意性地示出了根据本发明的一个实施例的电气设备的部分组成单元。
如图1所示，在该实施例中，电气设备1可包括感测单元10，用于感测电气设备1在操作过程中的操作数据，以及存储单元30，用于存储操作数据，以在电气设备发生故障时利用所存储的操作数据分析故障原因，所述操作数据可包括电气设备在操作过程中与电气设备的电部件相关的电压或电流或电气设备的温度。
本发明的实施例对感测单元10所感测的操作数据不作限定，因为要感测的操作数据可能随具体的电气设备而不同。例如，对于空调而言，可以感测的操作数据可包括电压、电流、温度，还可以包括湿度、送风量、或者电路板上的某个电阻值等。因此，感测单元10可以是能够感测各种操作数据的任何传感器，例如，电压传感器、电流传感器、温度传感器、湿度传感器等。电气设备1可以包括多个不同类型的感测单元10。在一个实施例中，感测单元10可以感测电气设备在操作过程中与电气设备的电部件相关的电压或电流，特别是感测电气设备的重要电部件或易于损坏的电部件处的电压或电流。例如，对于显示器而言，可以感测驱动板处的电压、驱动板的输出电流、显示器内的温度等。替代性地，还可以感测显示器内的主板、电源板、背光板处的电压。因此，本发明的实施例对其中的操作数据被感测的电部件也不作限定，对于不同的电气设备，可以选定不同的电部件进行操作数据的感测。
可以理解的是，感测单元10感测到的操作数据可以被转换为数字值而存储在电气设备1中的存储单元30中。例如，对于图1所示的实施例，感测单元10感测或采集到的操作数据可以经由A/D转换器(例如，包括在控制器20中)转换为数值信号而之后被存储在存储单元30中。存储单元30可以是任何适当的存储介质，包括但不限于ROM、RAM、EEPROM等。
在本发明的实施例中，感测单元10可以感测与电气设备1相关的 操作数据，直到电气设备已经发生了故障，相关的操作数据可以存储在其中的存储单元30中。因此，在电气设备发生故障后，可以利用存储在存储单元中的操作数据来分析可能的故障原因，并可以为改进电气设备的设计提供参考。相比于现有技术，通过利用这些操作数据，可以更加方便地进行故障原因的分析，维修故障电气设备的效率也因此得到大幅提高。
在一个实施例中，存储单元还可存储与感测单元所感测的操作数据同步的时间信息。也就是说，存储单元可以一同记录操作数据以及当时的时间信息。这样，在之后可能要进行的故障原因分析时，可以了解到相应的操作数据随时间的变化情况，从而能够更有针对性地、更准确地分析故障原因。
在另一实施例中，可以基于感测单元所感测到的操作数据而对电气设备采取保护措施，预防故障的发生。在该实施例中，电气设备可进一步包括与感测单元、存储单元电连接的控制单元，当操作数据超过对应的阈值时，控制单元可停止电气设备操作。再次参照图1，控制单元20可以与感测单元10和存储单元30电连接，其可以接收感测单元10感测到的操作数据并对其进行处理，并存储到存储单元30中。当控制器20判断某一操作数据超过预先设定的对应阈值时，其可以关闭电气设备以保护电气设备免于发生故障或损坏。例如，对于显示器而言，当检测到驱动板的输出电流过大而超过对应阈值时，控制器20可以发出控制信号使得驱动板的电源回路或电源板电源回路上的开关断开，从而使得电气设备停止工作，避免显示器的驱动板可能被烧毁。
根据本发明的又一实施例，感测单元可包括温度传感器，当所感测到的温度超过第一温度阈值时，控制单元停止电气设备操作。过高的温度可能意味着电气设备可能存在故障，或者，这种过高的温度可能是由某种外部原因导致而暂时存在的，避免电气设备在过高温度下操作，可以为电气设备提供完备的保护，并能延长电气设备的使用寿命。进一步地，可以当电气设备的温度下降至正常温度之后，可以恢复电气设备的操作，因此，在另一实施中，当温度传感器所感测的温度低于第二温度阈值时，控制单元启动电气设备操作。
在另一实施例中，电气设备可包括能够与外部设备通信的通信单元，以能够将在存储单元中存储的操作数据传输给外部设备。例如， 再次参考图1，电气设备1可包括通信单元40，这样，存储在存储单元30中的操作数据可以经由通信单元40而被传输到外部设备中，因此，可以在任何适当的外部设备上方便地进行故障原因的分析，而不必限于在电气设备上。通信单元40可以包括但不限于USB接口、蓝牙接口、红外线接口、网络接口等等。
根据本发明的又一实施例，电气设备还可包括判断单元，用于判断来自感测单元的操作数据是否变化，存储单元仅存储发生变化的操作数据。在通常情况下，电气设备大部分时间可能处于正常工作状态，感测单元此时感测到的操作数据并不指示电气设备的故障状态。因此，如果将电气设备的全部操作数据予以存储直到电气设备已发生故障，则最终所存储的数据量可能会相当大，这对故障原因的分析可能带来麻烦或低效率，而且，存储这些大量的操作数据对于存储单元的容量也提出了较高的要求，造成成本的增加。因此，如图2所示，电气设备还可包括判断单元201，用于判断来自感测单元的操作数据是否变化，存储单元仅存储发生变化的操作数据。例如，判断单元201可以将来自感测单元的两个连续的某种操作数据的值进行比较，这样，多个具有相同值的对应操作数据可以不被存储，存储单元仅存储发生变化的操作数据，这些发生变化的操作数据可能指示故障的发生或存在。虽然在图2中，判断单元201被包括在控制器20中，但是，在其它的实施例中，判断单元201可以位于电气设备的其它部件中，或作为独立部件而存在。替代性地，也可以采用其它方式来减小存储单元30内要存储的数据量，例如，周期性地覆盖电气设备的存储单元内的操作数据，或者感测单元仅在规定的时间段内进行感测操作数据。
根据本发明的另一实施例，电气设备可进一步包括计算单元，用于在操作数据发生变化时计算对应的操作数据的变化值；以及比较单元，用于将计算单元计算出的对应的操作数据的变化值与变化阈值比较，此时，存储单元仅存储变化值超过所述变化阈值的操作数据。如图2所示，电气设备可进一步包括计算单元202和比较单元203，当判断单元201确定操作数据发生变化时，计算单元202可以计算出对应的操作数据的变化值，比较单元203可以将计算出的变化值与变化阈值比较，而使得变化值超过变化阈值的操作数据被存储，其它操作数据被丢弃。如此，可进一步降低存储单元要存储的数据量，有利于简 化故障原因的分析，提高故障原因分析的效率。在电气设备的实际操作中，即使没有发生故障，感测单元所感测到的操作数据也可能受操作环境的影响而在较小的范围内变化，因此，利用合理选择的变化阈值滤除一些可能并未指示电气设备故障的操作数据，可以提高故障分析的效率，而遗漏与故障相关的操作数据的可能性可以被降到最低。在实施例中，变化阈值还可以根据不同的操作数据、电气设备的操作环境以及使用寿命而动态地调整，例如，电气设备在经过较长的使用时间之后或者在较恶劣的环境中操作时，其在正常操作状态下的相关的操作数据的变化值也可能会增大，此时，可以增加对应的变化阈值，以进一步减少要存储的操作数据量，便于故障原因的分析。
本发明的上述实施例所描述的电气设备可以组成一个电气系统，例如，多辆公交车辆上的显示器，或者地铁站或地铁车厢内的多个显示设备，为了便于对这些多个电气设备进行故障监控，可以将与每个电气设备相关的操作数据进行集中存储和管理。因此，本发明的另一实施例提供了一种电气系统，包括至少一个如上述实施例所述的电气设备以及服务器，每个电气设备能够与服务器通信以将操作数据传输至服务器。
图3示意性地示出了两个电气设备1以及一个服务器2，每个电气设备1能够与服务器2通信以进行数据传输。服务器2还可以向每个电气设备1发送指令。每个电气设备1可包括接收单元40，用于接收来自服务器2的指示传输操作数据的指令；以及发送单元50，用于响应于接收到指令将操作数据传输至服务器2。可以理解的是，服务器2与每个电气设备1之间可以应用当前本领域技术人员已知的任何的通信技术进行通信，包括有线和无线通信。在该实施例中，可以将电气设备1感测到的全部操作数据实时或定时地传输到服务器2，而无需在电气设备1上对操作数据进行处理，当某个或多个电气设备1发生故障时，可以在服务器2上利用相关的操作数据进行故障原因分析。
随着通信技术的发展和进步，数据可以根据需要而被传输和存储到任何一台终端设备上。因此，对于单个的电气设备而言，可以设计与其相匹配的终端设备，以接收和存储与该电气设备相关的操作数据，并在该终端设备上利用操作数据进行电气设备的故障原因诊断与分析，这可能尤其适用于家用电气设备。因此，本发明的实施例还提出 了一种终端设备，该终端设备用于从如前述实施例所描述的电气设备接收操作数据，以在电气设备发生故障时利用所接收的操作数据分析故障原因。该终端设备可以是具有数据传输能力的任何电子设备，包括但不限于移动电话、平板电脑、笔记本电脑等等。
在进一步的实施例中，可以将故障原因分析功能集成到终端设备中，并在电气设备发生故障时提供关于故障原因的信息。如图4所示，在一个实施例中，终端设备3可包括分析单元32，用于分析从电气设备1接收到的操作数据以得到故障原因；输出单元33，用于输出指示故障以及故障原因的信息。分析单元32可以是以软件实现的单元，其可以借助本领域技术人员熟知的故障原因分析方法或算法来确定电气设备1的故障原因，输出单元33可以是提供文字或其它图形或信号信息的显示单元。
可以理解的是，前述的电气设备实施例中描述的判断单元、计算单元以及比较单元的功能也可以集成到终端设备3上，以减小终端设备3要存储和分析的操作数据量，便于电气设备的故障原因分析。因此，在其它实施例中，终端设备可包括判断单元31，用于判断从电气设备接收到的相应的操作数据是否变化，此时分析单元32仅分析发生变化的操作数据。
进一步地，终端设备可进一步包括计算单元34，用于在操作数据发生变化时计算对应的操作数据的变化值；比较单元35，用于将计算单元34计算出的对应的操作数据的变化值与变化阈值比较；此时，分析单元32仅分析变化值超过所述变化阈值的操作数据。
根据本发明的又一实施例，终端设备3还可以包括存储器36，其中存储有相应的操作数据的变化与故障原因之间的对应关系；此时，分析单元32基于所述对应关系确定故障原因。该实施例可以提供一种自动化的故障原因分析系统，终端设备可以自动给出最有可能的故障原因，而无需人为干预。可以通过机器学习的方法而实现相应的操作数据的变化与故障原因之间的对应关系。例如，可以提供一些历史操作数据供终端设备3学习，这些历史操作数据不仅包括电气设备的感测单元所感测的操作数据，还包括可以从维修人员获得的真实的故障原因数据。通过机器学习可以建立相应的操作数据的变化与故障原因之间的对应关系或模型，在此基础上，当电气设备发生故障时，终端 设备3可以实现操作数据的变化与故障原因的自动匹配，从而提高故障检测的准确性，并提高故障原因分析的效率。
本发明的以上实施例提供电气设备、电气系统或对应的终端设备为方便、快速地分析电气设备发生故障的故障原因提供了基础，并可提高故障原因分析的准确性和效率。同时，可以为日后的电气设备的设计方面的改进提供参考。例如，当感测到的操作数据指示电气设备的某一开关器件经常因过流而损坏时，可以选择额定电流较高的开关器件应用于之后的电气设备，以改进电气设备的设计。
以上已经参照附图详细描述了本发明的实施例，但是，应该注意的是，上述实施例用来举例说明而不是限制本发明，并且本领域技术人员将能够设计许多替代性实施例而并未脱离所附权利要求的范围。在权利要求中，词语“包括”并未排除除了权利要求中所列举的那些之外的元件或步骤的存在。元件之前的词语“一”或“一个”并未排除多个这样的元件的存在。某些特征被记载在相互不同从属权利要求中这一纯粹事实并不意味着这些特征的组合不能被有利地使用。

Claims (15)

  1. 一种电气设备，包括：
    感测单元，用于感测电气设备在操作过程中的操作数据，所述操作数据包括电气设备在操作过程中与电气设备的电部件相关的电压或电流或电气设备的温度；
    存储单元，用于存储所述操作数据，以在电气设备发生故障时利用所存储的操作数据分析故障原因。
  2. 如权利要求1所述的电气设备，其中所述存储单元还存储与感测单元所感测的操作数据同步的时间信息。
  3. 如权利要求1所述的电气设备，其中所述电气设备进一步包括与感测单元、存储单元电连接的控制单元，当操作数据超过对应的阈值时，控制单元停止电气设备操作。
  4. 如权利要求3所述的电气设备，其中所述感测单元包括温度传感器，当温度传感器所感测到的温度超过第一温度阈值时，控制单元停止电气设备操作。
  5. 如权利要求4所述的电气设备，其中当温度传感器所感测的温度低于第二温度阈值时，控制单元启动电气设备操作。
  6. 如权利要求1所述的电气设备，其中所述电气设备进一步包括能够与外部设备通信的通信单元，以能够将在存储单元中存储的操作数据传输给外部设备。
  7. 如权利要求1所述的电气设备，其中所述电气设备进一步包括：
    判断单元，用于判断来自感测单元的操作数据是否变化，所述存储单元仅存储发生变化的操作数据。
  8. 如权利要求7所述的电气设备，其中所述电气设备进一步包括：
    计算单元，用于在操作数据发生变化时计算对应的操作数据的变化值；
    比较单元，用于将计算单元计算出的对应的操作数据的变化值与变化阈值比较；
    所述存储单元仅存储变化值超过所述变化阈值的操作数据。
  9. 一种电气系统，包括至少一个如权利要求1所述的电气设备以及服务器，其中每个电气设备能够与服务器通信以将操作数据传输至 服务器。
  10. 如权利要求9所述的电气系统，其中所述电气设备包括：
    接收单元，用于接收来自服务器的指示传输操作数据的指令；
    发送单元，用于响应于接收到所述指令将操作数据传输至服务器。
  11. 一种终端设备，其中所述终端设备用于从如权利要求1所述的电气设备接收操作数据，以在电气设备发生故障时利用所接收的操作数据分析故障原因。
  12. 如权利要求11所述的终端设备，其中所述终端设备包括：
    分析单元，用于分析从电气设备接收到的操作数据以得到故障原因；
    输出单元，用于输出指示故障以及故障原因的信息。
  13. 如权利要求12所述的终端设备，其中所述终端设备包括：
    判断单元，用于判断从电气设备接收到的相应的操作数据是否变化，所述分析单元仅分析发生变化的操作数据。
  14. 如权利要求13所述的终端设备，其中所述终端设备进一步包括：
    计算单元，用于在操作数据发生变化时计算对应的操作数据的变化值；
    比较单元，用于将计算单元计算出的对应的操作数据的变化值与变化阈值比较；
    所述分析单元仅分析变化值超过所述变化阈值的操作数据。
  15. 如权利要求14所述的终端设备，其中所述终端设备进一步包括：
    存储器，其中存储有相应的操作数据值的变化与故障原因之间的对应关系；
    所述分析单元基于所述对应关系确定故障原因。
PCT/CN2016/088586 2016-01-18 2016-07-05 具有故障监控功能的电气设备、电气系统以及终端设备 WO2017124701A1 (zh)

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