CN112731249B

CN112731249B - Electronic device and detection method

Info

Publication number: CN112731249B
Application number: CN202011612910.7A
Authority: CN
Inventors: 崔增良; 葛金榜; 王增强
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-11-01
Anticipated expiration: 2040-12-30
Also published as: CN112731249A

Abstract

The embodiment of the application provides electronic equipment and a detection method, wherein the electronic equipment comprises: a communicator and a controller; a communicator configured to: receiving an operation instruction input by a user to the electronic equipment; a controller configured to: responding to a first operation instruction input by a user to the own equipment, and executing a first detection operation, wherein the first detection operation comprises the following steps: controlling an input level of an upper bridge circuit of an IPM module of the electronic device to be a first level, and controlling an input level of a lower bridge circuit of the IPM module to be a second level; the circuit of the output end of the IPM module is detected, so that whether the IPM module of the electronic equipment fails or not can be detected.

Description

Electronic device and detection method

Technical Field

The application relates to the technical field of household appliances, in particular to an electronic device and a detection method.

Background

The overcurrent capability of a household appliance is usually limited. Beyond a certain current limit, the household appliance will fail, even leading to a safety accident. In some circuits of household appliances with high safety requirements, an Intelligent Power Module (IPM) is usually used to detect the current of a certain electronic circuit in the circuit, so as to determine whether an overcurrent occurs in the circuit, thereby ensuring that the household appliance can be interrupted in time to prevent accidents.

However, when a component of the IPM module of the home appliance is failed, the IPM module cannot detect the failure of the component, which may cause the failure of the home appliance.

Disclosure of Invention

The application provides an electronic device and a detection method, which are used for detecting the faults of an IPM module, and the technical scheme is as follows:

in a first aspect, the present application provides an electronic device, comprising:

a controller;

a controller configured to: responding to a first operation instruction input by a user to the own equipment, and executing a first detection operation, wherein the first detection operation comprises the following steps: controlling an input level of an upper bridge circuit of an IPM module of the electronic device to be a first level, and controlling an input level of a lower bridge circuit of the IPM module to be a second level; and a circuit for detecting the output end of the IPM module.

Further, the controller is further configured to: after the current of the output end of the IPM module is detected, the input levels of the upper bridge circuit and the lower bridge circuit are controlled to be low levels; after the preset time, controlling the input level of the upper bridge circuit to be a second level and controlling the input level of the lower bridge circuit to be a first level; and detecting the output current of the output end of the IPM module.

Further, the controller is further configured to: and if the output circuit of the output end of the IPM module is larger than the preset value, controlling the communicator to output a first alarm signal for indicating the disconnection of the upper bridge circuit or the lower bridge circuit of the IPM module.

Further, the controller is further configured to: and if the output current of the IPM module is greater than the preset value, controlling the electronic equipment to stop executing the action corresponding to the first operation instruction.

Further, the controller is further configured to: the number of times of executing the first detection operation is a preset number of times.

Further, the controller is further configured to: and if the output current of the output end of the IPM module is smaller than or equal to a preset value, controlling the electronic equipment to execute the action corresponding to the first operation instruction.

In a second aspect, the present application provides a detection method, which is applied to a controller in an electronic device provided in the first aspect, and the detection method includes:

in response to a first operation instruction input by a user into the electronic equipment, executing a first detection operation, wherein the first detection operation comprises the following steps: controlling an input level of an upper bridge circuit of an IPM module of the electronic equipment to be a first level, and controlling an input level of a lower bridge circuit of the IPM module to be a second level; and detecting the output current of the output end of the IPM module.

Further, after detecting the output current of the output terminal of the IPM module, the first detecting operation further includes: controlling the input level of the input ends of the upper bridge circuit and the lower bridge circuit to be low level; after the preset time, controlling the input level of the upper bridge circuit to be a second level and controlling the input level of the lower bridge circuit to be a first level; and detecting the output current of the output end of the IPM module.

Further, in response to a first operation instruction input by the user into the electronic device, the first detection operation is performed, and includes: responding to a first operation instruction input by a user into the electronic equipment, wherein the number of times of executing the first detection operation is a preset number, and the first detection operation is executed according to a preset time interval.

Further, the detection method further comprises the following steps: and if the output current of the output end of the IPM module is greater than a preset value, outputting an alarm signal for indicating the short circuit of the upper bridge circuit or the lower bridge circuit of the IPM.

In a third aspect, a computing device is provided, comprising:

a memory for storing program instructions;

and the processor is used for calling the program instructions stored in the memory and executing the method of the second aspect according to the obtained program.

Based on the above technical solution, the electronic device, the detection method, and the computing device provided in the present application may detect the output current of the output end of the IPM module by controlling and detecting the levels of the upper bridge circuit and the lower bridge circuit of the IPM module of the electronic device after the electronic device is started. Whether the IPM module of the electronic device fails or not can be judged based on the output current of the output end of the IPM module.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an IPM module according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of another electronic device provided in the embodiment of the present application;

fig. 4 is a schematic flowchart of a detection method according to an embodiment of the present application;

fig. 5 is a schematic diagram illustrating an input level of an IPM module according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a detection apparatus 600 according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The concept to which the present application relates will be first explained below with reference to the drawings. It should be noted that the following descriptions of the concepts are only for the purpose of facilitating understanding of the contents of the present application, and do not represent limitations on the scope of the present application.

The term "module" as used in the various embodiments of the present application may refer to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

The term "remote controller" used in the embodiments of the present application refers to a component of an electronic device (such as the inverter air conditioner disclosed in the present application), which can control the electronic device wirelessly, usually in a short distance range. The component may be generally connected to an electronic device using infrared and/or Radio Frequency (RF) signals and/or bluetooth, and may also include functional modules such as wireless fidelity (WIFI), wireless, universal Serial Bus (USB), bluetooth, and motion sensor. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in a common remote control device with a user interface in a touch screen.

The term "gesture" as used in the embodiments of the present application refers to a user behavior used to express an intended idea, action, purpose, or result through a change in hand shape or an action such as hand movement.

The term "hardware system" used in the embodiments of the present application may refer to a physical component having computing, controlling, storing, inputting and outputting functions, which is formed by a mechanical, optical, electrical and magnetic device such as an Integrated Circuit (IC), a Printed Circuit Board (PCB) and the like. In various embodiments of the present application, a hardware system may also be generally referred to as a motherboard (or chip).

Fig. 1 is a block diagram of an IPM module according to an embodiment of the present disclosure. As shown in fig. 1, the IPM module includes an upper bridge circuit, a lower bridge circuit, a control circuit 1, a control circuit 2, and a plurality of output terminals (e.g., U terminal, V terminal, W terminal, P terminal in fig. 1) having input terminals (e.g., S terminal in fig. 1). The chip 1 is connected with the upper bridge circuit. The chip 2 is connected with a lower bridge circuit.

The upper bridge circuit may include a plurality of Insulated Gate Bipolar Transistors (IGBTs). For example, as shown in fig. 1, the upper bridge circuit may include three IGBTs, UH, VH, WH, respectively. The connection mode of UH, VH and WH can be as shown in fig. 1, and will not be described again.

Wherein the control circuit 1 may be used to control the input level of the upper bridge circuit. For example, the control circuit 1 may be an HVIC, a chip, a single chip, or the like.

Wherein the lower bridge circuit may include a plurality of IGBTs. For example, as shown in fig. 1, the lower bridge circuit may include three IGBTs, UL, VL, WL, respectively. The connection modes of UL, VL, and WL can be as shown in fig. 1, and are not described in detail.

Wherein the control circuit 2 may be used to control the input level of the lower bridge circuit. For example, the control circuit 2 may be an LVIC, a chip, a single chip, or the like.

In some embodiments, control circuit 1 and control circuit 2 in fig. 1 may be the same control circuit.

Wherein, the output terminals (U, V, W) of fig. 1 are three-phase output terminals, which can be used to supply current to a three-phase motor. The input (S) in fig. 1 is a current input. The output (P) in fig. 1 is a current output.

The IPM module may be applied to an electronic device with an inverter function, for example, an inverter washing machine, an inverter air conditioner, an inverter refrigerator, and the like, without limitation.

When the electronic device with the IPM module normally operates, for example, after the electronic device is powered on (for example, 220 volts (V) ac voltage is applied), current may be input from the S terminal in fig. 1, the output terminals (U, V, W) may output current, so that the three-phase motor normally operates, and the current output from the output terminal (P) is less than or equal to the preset value. For example, the preset value may be 0 amps (a).

However, if one or more IGBTs of the upper bridge circuit or the lower bridge circuit in the IPM module are short-circuited, the current output from the output terminal (three-phase output terminal) increases. If the output current is too large, the current of the three-phase motor may be too large, and the three-phase motor may be damaged. At the same time, the current output by the output terminal (P) may be too large, possibly causing damage to the circuit connected to the output terminal.

For example, if one or more IGBTs in the upper bridge circuit are short-circuited, for example, the WH in fig. 1 is short-circuited, when the lower bridge circuit is turned on, current may pass through the short-circuited WH and the IGBTs of the lower bridge circuit and then be output from the output terminal (P), so that the output terminal (P) of the IPM module is over-current, that is, the output terminal (P) of the IPM module has excessive current.

The switching on of the lower bridge circuit may mean that the input levels of the plurality of IGBTs of the lower bridge circuit are high. If the input levels of the plurality of IGBTs of the lower bridge circuit are low levels, the lower bridge circuit is not turned on.

In view of the foregoing problems, embodiments of the present application provide an electronic device and a detection method, which can respond to a first operation instruction input by a user into the electronic device, where the first operation instruction can be used to instruct the electronic device to start to execute a first action. In response to a first operation instruction of a user, the electronic equipment executes a first detection operation. The first detecting operation is to detect an output current of an output terminal of an IPM module of the electronic apparatus. Based on the output current of the output terminal of the IPM module, the electronic apparatus may determine whether the IPM module is short-circuited.

Fig. 2 is a schematic structural diagram of an electronic device provided in the present application. As shown in fig. 2, the electronic apparatus includes: communicator 100, controller 200. Wherein the communicator 100 is communicatively coupled to the controller 200.

Therein, the communicator 100, which may also be referred to as a user input device, may be configured to receive an operation instruction input by a user to the electronic apparatus. For example, the operation instruction may be a gesture action of the user, or the operation instruction may be an instruction of the user to operate the remote controller.

In one example, when the electronic device is a variable frequency washing machine, the communicator may be a user input device, and may be configured to receive an operation instruction from a user. For example, a user may output an operation instruction to the variable frequency washing machine through a key (which may be a physical key or a touch key) provided on a surface of the variable frequency washing machine. For example, when the user presses or touches the "on" key, a power-on operation instruction may be input to the variable frequency washing machine. In response to the operation instruction of power-on, the variable frequency washing machine may be powered on. For another example, after the variable frequency washing machine is turned on, when the user presses or touches the "run" key, a running operation command may be input to the variable frequency washing machine. In response to the operating instruction, the variable frequency washing machine may start to perform an action corresponding to the operating instruction (the frequency and speed of rotation may be set as needed).

In another example, when the electronic device is an inverter air conditioner, the user may output an operation instruction to the inverter air conditioner through a remote controller. For example, when a user presses or touches a "power on" key of the remote controller, a power-on operation instruction may be sent to the inverter air conditioner. Correspondingly, the variable frequency air conditioner receives the operation instruction of power-on from the remote controller. In response to the power-on operation instruction, the inverter air conditioner may be powered on/powered on. For another example, after the inverter air conditioner is turned on, when the user presses or touches the "ok" key of the remote controller, an operational instruction for operation may be sent to the inverter air conditioner. Accordingly, the inverter air conditioner receives an operation instruction of operation from the remote controller, and the inverter air conditioner may start to execute an action corresponding to the operation instruction of operation (for example, may control the compressor to start to operate).

It should be noted that, in the embodiment of the present application, the electronic device may perform the detection operation of detecting the IPM module after detecting the operation instruction input by the user. And in the process of detecting the IPM module by the electronic equipment, the electronic equipment does not execute the action corresponding to the operation instruction.

Wherein the controller 100 is configured to: in response to a first operation instruction input by a user into the electronic equipment, a first detection operation can be executed; and detecting the output current of the output end of the IPM module.

The first operation instruction may refer to the description of the above example, and is not repeated.

Wherein the first detection operation may be for indicating detection of an output current of the output terminal of the IPM module.

In some embodiments, the first detection operation may include: controlling the input level of an upper bridge circuit of the IPM module to be a first level and controlling the input level of a lower bridge circuit of the IPM module to be a second level; the output current at the output terminal (e.g., terminal P in fig. 1) is sensed.

Wherein, controlling the input circuit of the upper bridge circuit of the IPM module may refer to controlling the output level of the control circuit 1 in fig. 1. For example, the controller 200 may send a first control instruction to the control circuit 1, and the first control instruction may control the level output by the output terminal of the control circuit 1 to be a first level. That is, the input levels of the plurality of IGBTs in the upper bridge circuit of the IPM module are the first level.

Here, the input circuit controlling the lower bridge circuit of the IPM module may refer to controlling an output level of the control circuit 2 in fig. 1. For example, the controller 200 may send a second control instruction to the control circuit 2, and the second control instruction may control the level output by the output terminal of the control circuit 2 to be a second level. That is, the input levels of the plurality of IGBTs in the lower bridge circuit of the IPM module are the second level.

The first level may be a high level, and the second level may be a low level. Alternatively, the first level may be a low level and the second level may be a high level.

In some embodiments, when the first level is a low level and the second level is a high level, if the output current of the output terminal (P) of the IPM module is greater than a predetermined value, it indicates that the upper bridge circuit of the IPM module is shorted. In the event of a short circuit of the upper bridge circuit of the IPM module, the electronic device may output a first alarm signal, which may be used to indicate a failure (i.e., a short circuit) of the upper bridge circuit of the IPM module.

In some embodiments, when the first level is a high level and the second level is a low level, if an output circuit of the output terminal (P) of the IPM module is greater than a predetermined value, it indicates that the lower bridge circuit of the IPM module is shorted. In the event of a short circuit of the lower bridge circuit of the IPM module, the electronic device may output a second alarm signal, which may be used to indicate that the lower bridge circuit of the IPM module is malfunctioning (i.e., shorted).

The second warning signal may refer to the description of the first warning signal, which is not described in detail.

For example, the electronic device may be provided with an indicator Light (e.g., a Light-Emitting Diode (LED)). If the electronic equipment detects that the upper bridge circuit of the IPM module is short-circuited, the indicator light can be controlled to emit light. If the electronic equipment detects that the upper bridge circuit of the IPM module is normal, the indicator light can be controlled not to emit light.

Further, in order to comprehensively detect the upper bridge circuit and the lower bridge circuit of the IPM module, the first detecting operation may further include: after the output current of the output end of the IPM module is detected, controlling the input levels of the input ends of an upper bridge circuit and a lower bridge circuit of the IPM module to be low levels; after the preset time, controlling the input level of the upper bridge circuit to be a second level and controlling the input level of the lower bridge circuit to be a first level; and detecting the output current of the output end of the IPM module.

In some embodiments, as shown in fig. 3, the electronic device may include a timer 300. The timer 300 is connected to the controller 200.

Wherein the timer 300 may be configured to: when the electronic equipment starts to execute a first detection operation, timing is started; and when the execution time length is the first preset time length, stopping timing. The first preset time period may be set according to needs, and may be, for example, 10 milliseconds (ms), without limitation.

Accordingly, the controller 200 may be further configured to: when the timing duration of the timer 300 is detected to be the first preset duration, the input levels of the input end of the upper bridge circuit and the input end of the lower bridge circuit of the IPM module are both controlled to be low levels.

Further, to reduce the error, the timer 300 may be further configured to: when the input levels of the input end of the upper bridge and the input end of the lower bridge circuit of the IPM module are both controlled to be low levels, timing is restarted; and when the execution time length is the second preset time length, stopping timing. The second preset time period may be set according to needs, and may be, for example, 5ms, without limitation.

Accordingly, the controller 200 may be configured to: when the timing duration of the timer 300 is detected to be the second preset duration, the first detection operation is executed again.

In some embodiments, in order to avoid the controller 200 performing the first detection operation too many times, as shown in fig. 3, in the embodiment of the present application, the electronic device may further include a counter 400. The counter 400 may be connected to the controller 200.

Wherein, the counter 400 may be configured to: when it is detected that the controller 200 starts to perform the first detection operation, increasing a first value (e.g., 1); when it is detected that the controller 200 controls the input levels of the input terminals of the upper bridge circuit and the lower bridge circuit to be low levels, and then the first detection operation is performed again, the first value is continuously increased to obtain the second value (e.g., 2). This is repeated until the number of times the controller 200 performs the first detection operation is a preset number. The preset number of times may be set as needed, for example, may be 6 times, and is not limited.

Accordingly, the controller 200 may be configured to: when it is detected that the count of the counter 400 is a preset number, the first detection operation is stopped.

In some embodiments, to avoid the electronic device continuing to operate in the event of a short circuit of the IPM module, the controller 200 may be further configured to: and when the output current of the output end of the IPM module is detected to be larger than a preset value, controlling the electronic equipment to stop executing the action corresponding to the first operation instruction.

In some embodiments, in order not to affect the use of the electronic device by the user, the controller 200 may be further configured to: when the output current of the output end of the IPM module is detected to be smaller than or equal to the preset value, the electronic equipment can be controlled to execute the action corresponding to the first operation instruction.

Based on the IPM module, the embodiment of the present application provides a detection method, which is applied to the controller 100 provided in the above embodiment. With reference to fig. 1, fig. 2 or fig. 3, as shown in fig. 4, the detection method includes: S401-S403.

S401, the communicator receives a first operation instruction input by the user to the electronic equipment.

The communicator may be the communicator 100 described above in fig. 2 or 3, among others. The electronic apparatus may be the electronic apparatus shown in fig. 2 or 3, and the electronic apparatus has the IPM module shown in fig. 1.

The first operation instruction may refer to the above description, and is not repeated.

S402, the communicator sends a first operation instruction to the controller. Accordingly, the controller receives a first operation instruction from the communicator.

The controller may be the controller 200 in fig. 2 or fig. 3.

And S403, responding to the first operation instruction, and executing a first detection operation by the controller.

The first detection operation may refer to the above description, and is not repeated.

Based on the technical scheme of fig. 4, after the electronic device is started, the level of the upper bridge circuit and the level of the lower bridge circuit of the IPM module of the electronic device may be controlled to be detected, so as to detect the output current of the output end of the IPM module. Whether the IPM module of the electronic device fails or not can be judged based on the output current of the output end of the IPM module.

In some embodiments, S403 may be implemented as: in response to the first operation instruction, the controller performs the first detection operation for a preset number of times, and performs the first detection operation at preset time intervals.

The preset number of times and the time interval may be set as needed, for example, the preset number of times may be 6 times, and the time interval may be 5ms, which is not limited.

In some embodiments, S403 may also be implemented as: in response to the first operation instruction, the time length for the controller to execute the first detection operation is a preset time length.

The preset time length may be set as required, and for example, may be 25ms, which is not limited.

In some embodiments, the method provided in the embodiments of the present application may further include: when the output current of the output end of the IPM module is detected to be larger than a preset value, the controller controls the communicator to output a first alarm signal.

The first alarm signal may refer to the above description, and is not described in detail.

In some embodiments, the method provided in the embodiments of the present application may further include: when the output current of the output end of the IPM module is detected to be smaller than or equal to the preset value, the controller controls the electronic equipment to execute the action corresponding to the first operation instruction.

The detection method provided by the embodiment of the present application can be applied to the detection process of the electronic device after assembly. When the IPM module of the electronic equipment is detected to be in fault, a worker can replace the IPM module of the electronic equipment in time or power the IPM module of the electronic equipment again to detect the IPM module of the electronic equipment. Therefore, the condition that the user purchases an electronic product with IPM module faults can be avoided, and the user experience is improved.

The following describes a detection method according to an embodiment of the present application with reference to a specific example, with an electronic device as an execution subject:

after the electronic equipment is powered on, when the electronic equipment detects that a user presses or touches a 'run' key or receives a 'run' instruction from a remote controller, the electronic equipment starts to execute a first detection operation.

The level of the input terminal of the upper bridge circuit and the level of the input terminal of the lower bridge circuit of the IPM module may be controlled as shown in fig. 5.

In fig. 5, the electronic device controls the level and the input duration of each IGBT input into the upper bridge circuit and each IGBT input into the lower bridge circuit in fig. 1.

In fig. 5, in a period of 0 to 5ms, the electronic device controls the level of the plurality of IGBT (UH, VH, WH) inputs of the upper bridge circuit to be low level and controls the level of the plurality of IGBT (UL, VL, WL) inputs of the lower bridge circuit to be high level; and detecting the output current of the output end of the IPM module.

If the output current of the output end of the IPM module is larger than a preset value, one or more IGBTs in the upper bridge circuit are short-circuited; and if the output current of the output end of the IPM module is less than or equal to a preset value, indicating that the IGBTs in the upper bridge circuit are normal.

And in the time period of 5 ms-10 ms, the electronic equipment controls the input levels of the IGBTs of the upper bridge circuit and the lower bridge circuit to be low levels.

In a period of 10-15 ms, the electronic equipment controls the level of a plurality of IGBT (UL, VL, WL) inputs of a lower bridge circuit to be low level and controls the level of a plurality of IGBT (UH, VH, WH) inputs of an upper bridge circuit to be high level; and detecting the output current of the output end of the IPM module.

If the output current of the output end of the IPM module is larger than a preset value, one or more IGBTs in the lower bridge circuit are short-circuited; and if the output current of the output end of the IPM module is less than or equal to a preset value, indicating that the IGBTs in the lower bridge circuit are normal.

And in the period of 15 ms-20 ms, the electronic equipment controls the input levels of the IGBTs of the upper bridge circuit and the lower bridge circuit to be low levels.

Therefore, the electronic equipment can execute the processes in a circulating mode until the execution times reach the preset times.

In the above-mentioned detection method, the electronic device may also control the input level of the upper bridge circuit to be a low level, control the input level of the lower bridge circuit to be a high level, and then control the input level of the upper bridge dial to be a high level, and control the input level of the lower bridge circuit to be a low level. And is not limited.

Fig. 6 is a block diagram illustrating a configuration of a detection apparatus 600. The detection device 600 may be the electronic device in the above embodiments, or may also be a part of the electronic device. As shown in fig. 6, the detecting device 600 includes a controller 610, a communicator 630, a user input/output interface 640, a memory 690, and a power supply 680.

The detection device 600 is configured to control the controller 610, and to receive an input operation command from a user, and to convert the operation command into a command recognizable and responsive to the controller 610, so as to mediate interaction between the user and the controller 610.

The controller 610 includes a processor 612, a RAM 613, and a ROM 614, a communication interface, and a communication bus. The controller 610 is used to control the operation of the detection apparatus 600, as well as the communication and coordination among the internal components and the external and internal data processing functions.

The communicator 630 enables communication of control signals and data signals with the controller 610 under the control of the controller 610. Such as: the received user input signal is sent to the controller 610. The communicator 630 may include at least one of a WIFI module 631, a bluetooth module 632, a Near Field Communication (NFC) module 633, and the like.

User input/output interface 640, wherein the input interface includes at least one of a microphone 641, a touch pad 642, sensors 643, keys 644, a camera 645, and the like. Such as: the user can input a user command through voice, touch, gesture, pressing, and other actions, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding command signal, and sends the command signal to the controller 610.

It should be noted that, when the electronic device has a control device (e.g., an inverter air conditioner), the controller 610 may be a control device (e.g., a remote controller) of the electronic device. When the electronic device does not have a control device (e.g., variable frequency washing machine, variable frequency refrigerator), the electronic device may have one of the above-described communicator 630 and the user input/output interface 640. E.g., without communicator 630 and with user input/output interface 640. In this case, the user input/output interface 640 may have the function of the communicator 630.

The output interface includes an interface that transmits the received user instruction to the controller 610. In some embodiments, it may be an infrared interface or a radio frequency interface. Such as: when the infrared signal interface is used, a user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the controller 610 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, the user input command needs to be converted into a digital signal, and then modulated according to the rf control signal modulation protocol, and then sent to the controller 610 through the rf sending terminal.

In some embodiments, the detection device 600 includes at least one of a communicator 630 and an output interface. The detecting device 600 is configured with a communicator 630, such as: the modules such as WIFI, bluetooth, and NFC may send the user input command to the controller 610 through a WIFI protocol, a bluetooth protocol, or an NFC protocol code.

A memory 690 for storing various operation programs, data and applications for driving and controlling the sensing device 600 under the control of the controller 610. The memory 690 may store various control signal commands input by the user.

And a power supply 680 for providing operation power support for each electrical component of the detection apparatus 600 under the control of the controller 610. The power supply 680 may be powered by a battery and associated control circuitry.

An electronic device may include a Central Processing Unit (CPU), a memory, an input/output device (i/o device), etc., an input device may include keys, a touch screen, etc., and an output device may include a Display device, such as a Liquid Crystal Display (LCD), a Cathode Ray Tube (CRT), etc.

Where the processor is responsible for managing the bus architecture and general processing, the memory may store data used by the processor in performing operations.

In some exemplary embodiments, the processor may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

The memory may include Read Only Memory (ROM) and Random Access Memory (RAM), and provides the processor with program instructions and data stored in the memory. In the present embodiment, the memory may be used to store a program of any of the methods provided in the present exemplary embodiments.

The processor is configured to execute any of the methods provided in the exemplary embodiments of the present application in accordance with the obtained program instructions by calling the program instructions stored in the memory.

In an exemplary embodiment of the present application, a computer storage medium is provided for storing computer program instructions for an apparatus provided in the above embodiment of the present application, which includes a program for executing any one of the methods provided in the above embodiment of the present application.

The computer storage media may be any available media or data storage device that can be accessed by a computer, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid State Disks (SSDs)), etc.

As will be appreciated by one skilled in the art, the present exemplary embodiments may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments shown in the present application without inventive effort, shall fall within the scope of protection of the present application. Moreover, while the disclosure herein has been presented in terms of exemplary one or more examples, it is to be understood that each aspect of the disclosure can be utilized independently and separately from other aspects of the disclosure to provide a complete disclosure.

It should be understood that the terms "first," "second," "third," and the like in the description and in the claims of the present application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used are interchangeable under appropriate circumstances and can, for example, be implemented in sequences other than those illustrated or otherwise described herein with reference to the embodiments of the application.

Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electronic device, comprising:

a controller;

the controller configured to: in response to a first operation instruction input by a user into the electronic equipment, executing a first detection operation, wherein the first detection operation comprises the following steps:

controlling an input level of an upper bridge circuit of an IPM module of the electronic device to be a first level, and controlling an input level of a lower bridge circuit of the IPM module to be a second level;

detecting a current at an output terminal of the IPM module;

under the condition that the first level is a low level and the second level is a high level, if the current of the output end of the PIM module is larger than a preset value, it is determined that the upper bridge circuit of the PIM module is short-circuited; alternatively, the first and second electrodes may be,

and if the current of the output end of the PIM module is greater than a preset value, determining that a lower bridge circuit of the PIM module is short-circuited when the first level is a high level and the second level is a low level.

2. The electronic device of claim 1, wherein the controller is further configured to: after the current of the output end of the IPM module is detected, controlling the input level of the input ends of the upper bridge circuit and the lower bridge circuit to be low level;

after a preset time, controlling the input level of the upper bridge circuit to be the second level, and controlling the input level of the lower bridge circuit to be the first level;

and detecting the output current of the output end of the IPM module.

3. The electronic device of claim 1 or 2, further comprising a communicator;

the controller further configured to: and if the output current of the output end of the IPM module is greater than a preset value, controlling the communicator to output a first alarm signal, wherein the first alarm signal is used for indicating the short circuit of the upper bridge circuit or the lower bridge circuit.

4. The electronic device of claim 3, wherein the controller is further configured to:

and if the output current of the output end of the IPM module is greater than the preset value, controlling the electronic equipment to stop executing the action corresponding to the first operation instruction.

5. The electronic device of claim 1 or 2, wherein the controller is further configured to:

the number of times of executing the first detection operation is a preset number of times.

6. The electronic device of claim 1 or 2, wherein the controller is further configured to:

and if the output current of the output end of the IPM module is smaller than or equal to a preset value, controlling the electronic equipment to execute the action corresponding to the first operation instruction.

7. A detection method applied to a controller of an electronic device according to any one of claims 1 to 6, the method comprising:

in response to a first operation instruction input by a user to the electronic equipment, executing the first detection operation, wherein the first detection operation comprises the following steps: controlling an input level of an upper bridge circuit of an IPM module of the electronic device to be a first level, and controlling an input level of a lower bridge circuit of the IPM module to be a second level;

detecting an output current of an output end of the IPM module;

when the first level is a low level and the second level is a high level, if the current of the output end of the PIM module is greater than a preset value, determining that an upper bridge circuit of the PIM module is short-circuited; alternatively, the first and second electrodes may be,

8. The method of claim 7, wherein after detecting the output current at the output of the IPM module, the first detecting operation further comprises: controlling the input level of the input ends of the upper bridge circuit and the lower bridge circuit to be low level;

after a preset time, controlling the input level of the upper bridge circuit to be the second level and controlling the input level of the lower bridge circuit to be the first level;

detecting an output current of an output terminal of the IPM module.

9. The detection method according to claim 7 or 8, wherein the performing of the first detection operation in response to a user inputting a first operation instruction of the electronic device comprises:

responding to the first operation instruction input by the user to the electronic equipment, wherein the number of times of executing the first detection operation is a preset number, and the first detection operation is executed according to a preset time interval.

10. The method of claim 9, further comprising:

and if the output current of the output end of the IPM module is greater than a preset value, outputting a first alarm signal, wherein the first alarm signal is used for indicating that an upper bridge circuit or a lower bridge circuit of the IPM module is short-circuited.