Current anomaly detection circuit, smart home central control equipment and smart home system

Abstract

The embodiment of the invention relates to a current abnormity detection circuit, intelligent household central control equipment and an intelligent household system, the circuit comprises a first circuit board, a second circuit board and a current detection module, the first circuit board comprises a first wiring terminal and a power supply module, and the second circuit board comprises a second wiring terminal. The first wiring terminal is connected with the second wiring terminal; the power supply module is connected with the power supply output pin of the first wiring terminal, and the power supply input pin of the second wiring terminal is connected with the power supply output pin; and the current detection module is used for detecting current between the power supply output pin and the power supply input pin, and outputting a first warning instruction indicating disconnection of the first wiring terminal and the second wiring terminal if the current value of the detected current is smaller than or equal to a preset current lower limit threshold value. According to the embodiment of the invention, when the connection abnormity is detected, the first warning instruction is sent out in time, and the effects of preventing the equipment from being stolen and recovering the abnormity of the equipment in time are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a current anomaly detection circuit, a smart home central control device and a smart home system. Background Art

[0002] At present, the application of intelligent electronic devices has gradually spread to all aspects of society. The mutual linkage between intelligent single devices and the intelligent execution of intelligent single products have provided people with many conveniences. There are many IoT-based devices on the market. Among these devices, there are many scenarios where circuit boards with different functions need to be connected through wiring terminals. For example, the intelligent central control device is powered by a high-voltage board, and then the low-voltage board display is inserted into the high-voltage board through a pin header. This pin header connected to the male and female wires can be directly unplugged under normal conditions, and there is no reminder after unplugging. Therefore, there is a situation where the user is still unclear about the current status of the device after the circuit boards are disconnected, and the device is prone to theft and cannot recover from faults in time. Summary of the invention

[0003] In view of this, in order to solve some or all of the above-mentioned technical problems, the embodiments of the present application provide a current anomaly detection circuit, a smart home central control device and a smart home system.

[0004] In a first aspect, an embodiment of the present application provides a current anomaly detection circuit, which includes: a first circuit board, a second circuit board, and a current detection module, the first circuit board includes a first terminal and a power supply module, the second circuit board includes a second terminal, the first terminal and the second terminal are connected; the power supply module is connected to the power output pin of the first terminal, and the power input pin of the second terminal is connected to the power output pin, so that the power supply module provides power to the second circuit board; the current detection module is connected to the power output pin or the power input pin, and the current detection module is used to: detect the current between the power output pin and the power input pin, and if the current value of the current is detected to be less than or equal to a preset current lower limit threshold, output a first warning instruction indicating that the first terminal and the second terminal are disconnected.

[0005] In a possible implementation, the circuit further includes a warning module, which is connected to the current detection module; the current detection module is further configured to send a first warning instruction to the warning module; and the warning module is configured to output a first warning message according to the first warning instruction.

[0006] In one possible implementation, the current detection module is further used to: if it is detected that the current between the power output pin and the power input pin is greater than or equal to a preset current upper limit threshold, send a second warning instruction to the warning module; the warning module is further used to: output a second warning message according to the second warning instruction.

[0007] In a possible implementation, the warning module includes an alarm sound output unit; the alarm sound output unit is used to: receive the first warning information and output a prompt sound corresponding to the first warning information.

[0008] In a possible implementation, the warning module includes a communication unit; the communication unit is used to: receive the first warning information, and send the first warning information to a remote device.

[0009] In one possible embodiment, the current detection module is arranged on the second circuit board, and the second circuit board includes at least one functional module, and each functional module in the at least one functional module is connected to the current detection module; the current detection module is also used to: detect the input current of each functional module in the at least one functional module; for each functional module in the at least one functional module, if it is detected that the input current of the functional module is outside the preset current range corresponding to the functional module, a third warning instruction corresponding to the functional module is sent to the warning module; the warning module is also used to output a third warning message according to the third warning instruction.

[0010] In one possible embodiment, the circuit also includes a display screen module, which is connected to the current detection module; the current detection module is also used to: for each functional module in at least one functional module, if it is detected that the input current of the functional module is outside the preset current range corresponding to the functional module, send fault identification information corresponding to the functional module to the display screen module; the display screen module is used to: display the received fault identification information.

[0011] In a possible implementation, the warning module includes an alarm sound output unit; the alarm sound output unit is used to: receive the third warning information and output a prompt sound corresponding to the third warning information.

[0012] In the second aspect, an embodiment of the present application provides a smart home central control device, which includes: the above-mentioned current anomaly detection circuit, a power supply device and a control device, the power supply device is fixedly installed at a preset position, and the control device is detachably installed on the power supply device; the first circuit board included in the current anomaly detection circuit is arranged on the power supply device, the second circuit board included in the current anomaly detection circuit is arranged on the control device, and the current detection module included in the current anomaly detection circuit is arranged on the first circuit board or the second circuit board.

[0013] In a third aspect, an embodiment of the present application provides a smart home system, which includes the above-mentioned smart home central control device and at least one smart home device, and the smart home central control device and at least one smart home device are communicatively connected.

[0014] The current anomaly detection circuit, smart home central control device and smart home system provided in the embodiments of the present application, by setting a current detection module, connect the current detection module to the power output pin or the power input pin of the two circuit boards, and when it is detected that the current value between the power output pin and the power input pin is less than or equal to the preset current lower limit threshold, output a first warning instruction indicating that the first terminal and the second terminal are disconnected, thereby realizing real-time monitoring of the connection status of the two circuit boards. When a connection abnormality is detected, the first warning instruction is issued in time, so that the user is informed of the current device connection status in time, thereby achieving the effect of preventing the device from being stolen and recovering from the device abnormality in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0018] Figure 1 A schematic diagram of the structure of a current anomaly detection circuit provided in an embodiment of the present application;

[0019] Figure 2 A structural schematic diagram of another current anomaly detection circuit provided in an embodiment of the present application;

[0020] Figure 3 A structural schematic diagram of another current anomaly detection circuit provided in an embodiment of the present application;

[0021] Figure 4 A structural schematic diagram of another current anomaly detection circuit provided in an embodiment of the present application;

[0022] Figure 5 A structural schematic diagram of another current anomaly detection circuit provided in an embodiment of the present application;

[0023] Figure 6 A schematic diagram of the structure of a smart home central control device provided in an embodiment of the present application;

[0024] Figure 7 A schematic diagram of the three-dimensional structure of a smart home central control device provided in an embodiment of the present application;

[0025] Figure 8 A schematic diagram of the structure of a smart home system provided in an embodiment of the present application.

[0026] Reference numerals:

[0027] 100-current anomaly detection circuit; 101-first circuit board; 1011-first terminal; 102-second circuit board; 1021-second terminal; 103-current detection module; 104-warning module; 1041-alarm sound output unit; 1042-communication unit; 1022-at least one functional module; 105-display screen module; 600-smart home central control device; 601-power supply device; 602-control device; 800-smart home system; 801-at least one smart home device. DETAILED DESCRIPTION

[0028] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the numerical expressions and the numerical values ​​described in these embodiments do not limit the scope of the present application.

[0029] Those skilled in the art will understand that the terms "first" and "second" in the embodiments of the present application are only used to distinguish between different steps, devices, modules and other objects, and do not represent any specific technical meanings, nor do they indicate the logical order between them.

[0030] It should also be understood that in this embodiment, “plurality” may refer to two or more than two, and “at least one” may refer to one, two or more than two.

[0031] It should also be understood that any component, data or structure mentioned in the embodiments of the present application can generally be understood as one or more, unless explicitly limited or otherwise indicated in the context.

[0032] In addition, the term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0033] It should also be understood that the description of the various embodiments in this application focuses on the differences between the various embodiments, and the same or similar aspects thereof can be referenced to each other, and for the sake of brevity, they will not be described one by one.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0035] Technologies, circuits, and devices known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the above-mentioned technologies, circuits, and devices should be considered as part of the specification.

[0036] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0037] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. To facilitate the understanding of the embodiments of the present application, the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0038] The problem in the prior art that the user cannot be promptly notified when the connection between circuit boards in an electronic device is disconnected has not been solved. The embodiment of the present application provides a current anomaly detection circuit that can detect the connection status between circuit boards in real time and output a warning instruction in time when the connection terminal is disconnected, thereby achieving the effect of preventing theft and promptly recovering from equipment failures.

[0039] Figure 1 This is a schematic diagram of a current anomaly detection circuit provided in an embodiment of the present application, which can be applied to various electronic devices (such as smart home central control devices). The circuit specifically includes: a first circuit board 101, a second circuit board 102, and a current detection module 103. The first circuit board 101 includes a first terminal 1011 and a power supply module 1012, and the second circuit board includes a second terminal 1021. The first terminal 1011 and the second terminal 1021 are connected.

[0040] The power supply module is connected to the power output pin of the first wiring terminal 1011 , and the power input pin of the second wiring terminal 1021 is connected to the power output pin, so that the power supply module provides power to the second circuit board 102 .

[0041] The first circuit board 101 and the second circuit board 102 may respectively perform different functions, and the first circuit board 101 may provide power to the second circuit board 102. The power supply module may provide various power supply voltages to the second circuit board 102. The number of the power output pins and the power input pins may be one or more, and the power output pins and the power input pins correspond one to one, that is, each power input pin receives the input power supply voltage from the corresponding power output pin, and transmits the voltage to various components on the second circuit board 102.

[0042] As an example, a 12V to 5V DC-DC power supply module is provided on the first circuit board 101 , and the 5V voltage is transmitted to the power input pin on the second circuit board 102 through the above-mentioned power output pin, and then transmitted to various components on the second circuit board 102 .

[0043] The current detection module 103 is connected to the power output pin or the power input pin. The specific pin to which the current detection module 103 is connected can be set according to actual needs and is not limited in the embodiment of the present application. The current detection module 103 can be set on the first circuit board 101 or on the second circuit board 102. Figure 1 The current detection module 103 shown is disposed on the second circuit board 102 and connected to a power input pin on the second circuit board 102 .

[0044] The current detection module 103 is used to detect the current between the power output pin and the power input pin, and if the current value detected is less than or equal to the preset current lower limit threshold, output a first warning instruction indicating that the first terminal 1011 and the second terminal 1021 are disconnected.

[0045] Specifically, the current detection module 103 may include a current acquisition unit and a logic processing unit. The current acquisition unit may acquire current from the loop between the power output pin and the power input pin, and transmit the current signal to the logic processing unit, which may judge the current signal to determine whether it is less than or equal to a preset current lower limit threshold.

[0046] As an example, the current detection module 103 may be a separate MCU, or a current detection function may be set on an existing logic processing chip on the second circuit board 102 (or the first circuit board 101 ).

[0047] When the detected current value is less than or equal to the preset current lower limit threshold, it can be determined that a circuit is broken between the first wiring terminal 1011 and the second wiring terminal 1021 due to a fault, loose circuit, theft of the second circuit board 102, etc. At this time, the current detection module 103 can output a first warning instruction. The first warning instruction can be transmitted to various devices. For example, the circuit may include a buzzer, and the first warning instruction can be a high level or low level signal, which is transmitted to the buzzer to make the buzzer sound an alarm.

[0048] The current anomaly detection circuit provided in the embodiment of the present application sets a current detection module, connects the current detection module to the power output pin or the power input pin of the two circuit boards, and outputs a first warning instruction indicating that the first wiring terminal and the second wiring terminal are disconnected when it is detected that the current value between the power output pin and the power input pin is less than or equal to a preset current lower limit threshold, thereby realizing real-time monitoring of the connection status of the two circuit boards. When a connection abnormality is detected, the first warning instruction is issued in time, so that the user is informed of the current device connection status in time, thereby preventing the device from being stolen and recovering from the device abnormality in time.

[0049] In some optional implementations of this embodiment, such as Figure 2 As shown, the circuit further includes a warning module 104, and the warning module 104 is connected to the current detection module 103. The warning module 104 and the current detection module 103 can be arranged on the same circuit board.

[0050] The current detection module 103 is further used to send a first warning instruction to the warning module 104. That is, when it is detected that the current between the power output pin and the power input pin is less than or equal to the preset current lower limit threshold, the first warning instruction is sent to the warning module 104.

[0051] The warning module 104 is used to output the first warning information according to the first warning instruction. The warning module 104 can output the first warning information in various ways. For example, the first warning information is output by emitting an alarm sound, emitting a prompt voice, emitting a light, sending a message to a remote device, etc.

[0052] This embodiment provides a warning module in the circuit to promptly remind the user of the current device status when a circuit break is detected between the first circuit board and the second circuit board, thereby reducing the risk of circuit board theft, malfunction, etc.

[0053] In some optional implementations of this embodiment, the current detection module 103 is further used for:

[0054] If it is detected that the current between the power output pin and the power input pin is greater than or equal to the preset current upper limit threshold, a second warning instruction is sent to the warning module 104. If the current is greater than or equal to the preset current upper limit threshold, it means that the first circuit board 101 or the second circuit board 102 may have a short circuit or other faults, and a warning needs to be issued immediately.

[0055] The warning module 104 is further configured to output a second warning message according to a second warning instruction.

[0056] The first warning information and the second warning information may be of the same or different types. For example, the second warning information may be a sound signal different from the first warning information.

[0057] This embodiment outputs the second warning information when the current between the power output pin and the power input pin is too large, so that the user is informed of the power supply failure of the circuit in time, which helps to quickly solve the failure.

[0058] In some optional implementations of this embodiment, such as Figure 3 As shown, the warning module 104 may include an alarm sound output unit 1041 .

[0059] The alarm sound output unit 1041 is used to: receive the first warning information and output a prompt sound corresponding to the first warning information. As an example, the alarm sound output unit 1041 can be a buzzer, the first warning information can be a level signal, and the buzzer can output a prompt sound; the alarm output unit can also be a speaker, the first warning information can be a voice signal, and the speaker can output a voice prompt.

[0060] This embodiment provides an alarm sound output unit to output an alarm sound in time when a circuit break occurs between circuit boards, thereby improving the efficiency of prompting users and facilitating users to make quick decisions.

[0061] In some optional implementations of this embodiment, such as Figure 3 As shown, the alert module 104 may include a communication unit 1042 .

[0062] The communication unit 1042 is used to receive the first warning information and send the first warning information to the remote device.

[0063] The remote device may be a server, a mobile phone used by a user, a desktop computer, or other types of devices. The communication unit 1042 is connected to the remote device by wired or wireless communication.

[0064] This embodiment provides a communication unit to automatically send a warning message to the user when a circuit break occurs between circuit boards, so that the user can remotely know the current status of the device, thereby improving the efficiency of the user's decision-making.

[0065] In some optional implementations of this embodiment, such as Figure 4 As shown, the current detection module 103 is disposed on the second circuit board 102 , and the second circuit board 102 includes at least one functional module 1022 (including functional module 1 to functional module N), and each functional module of the at least one functional module is connected to the current detection module 103 .

[0066] The at least one functional module mentioned above may include various modules for performing specific functions, such as a Bluetooth communication module, a WiFi module, a voice module, etc.

[0067] The current detection module 103 is further used to detect the input current of each functional module in the at least one functional module.

[0068] Optionally, the current detection module 103 may include multiple current acquisition units, each current acquisition unit may correspond to a functional module, collect current from the functional module, and input the current into the logic processing unit included in the current detection module 103, thereby obtaining the input current of each functional module. The current detection module 103 may also include a current acquisition unit and a switching switch, and the switching switch is used to sequentially connect each functional module to the current detection module 103, thereby sequentially obtaining the input current of each functional module.

[0069] For each functional module in the at least one functional module, if it is detected that the input current of the functional module is outside the preset current range corresponding to the functional module, a third warning instruction corresponding to the functional module is sent to the warning module 104 .

[0070] The preset current range may include an upper current limit and a lower current limit. If the input current of any functional module is greater than the upper current limit or less than the lower current limit, it indicates that a failure has occurred in the operation of the functional module. At this time, the current detection module 103 may output a third warning instruction to the warning module 104 .

[0071] The warning module 104 is further configured to output a third warning message according to the third warning instruction.

[0072] The third warning information may be of the same or different type as the first warning information and the second warning information. For example, the third warning information may include information such as the type of the faulty functional module and the time when the fault occurred, and then display this information on the screen or send it to the terminal device used by the user.

[0073] This embodiment can accurately determine whether the operating status of each functional module is normal by detecting the input current of each functional module on the second circuit board, thereby completing real-time monitoring of the operating status of the second circuit board, improving the comprehensiveness of equipment operating status monitoring, and facilitating timely repair of faulty functional modules.

[0074] In some optional implementations of this embodiment, such as Figure 5 As shown, the circuit further includes a display screen module 105 , and the display screen module 105 is connected to the current detection module 103 .

[0075] The current detection module 103 is further used to: for each functional module in at least one functional module, if it is detected that the input current of the functional module is outside the preset current range corresponding to the functional module, send the fault identification information corresponding to the functional module to the display screen module 105;

[0076] The display screen module 105 is used to display the received fault identification information.

[0077] The fault identification information may indicate the type and location of the functional module where the fault occurs, and the functional module where the fault occurs may be located through the fault identification information. For example, the fault identification information may include text, icons, and information such as the current value currently detected.

[0078] This embodiment can quickly locate the position of the faulty functional module by displaying the fault identification information of the faulty functional module on the display screen module, thereby facilitating efficient fault handling of the functional module.

[0079] In some optional implementations of this embodiment, the warning module 104 includes an alarm sound output unit 1041;

[0080] The alarm sound output unit 1041 is used to receive the third warning information and output a prompt sound corresponding to the third warning information.

[0081] The alarm sound output unit in this embodiment can be used with the above Figure 3 The alarm sound output unit 1041 in the embodiment is the same unit. The third warning information in this embodiment can be the same as the above Figure 3 The first warning information in the corresponding embodiment is the same or different. For example, the third warning information can be a sound signal with a frequency different from that of the first warning information, so as to distinguish different fault states of the device. For another example, the third warning information can be a voice message, which includes the fault identification information of the functional module where the fault occurs.

[0082] Optionally, the above Figure 3 The communication unit 1042 shown sends the third warning information to the remote device.

[0083] In this embodiment, the alarm sound output unit outputs the prompt sound corresponding to the functional module that has failed, thereby achieving timely output of the alarm sound to the user, improving the efficiency of prompting the user, and facilitating the user to make a quick decision.

[0084] Figure 6 A schematic diagram of the structure of a smart home central control device 600 provided in an embodiment of the present application is shown in FIG. Figure 6 As shown, the smart home central control device specifically includes: the current anomaly detection circuit 100 described in the above embodiments, as well as a power supply device 601 and a control device 602, the power supply device 601 is fixedly installed at a preset position, and the control device 602 is detachably installed on the power supply device 601.

[0085] The power supply device 601 can usually receive input strong electricity (such as 220V AC), convert the strong electricity into weak electricity (such as 5V DC, etc.), and provide the weak electricity to the control device 602. In one scenario, the power supply device 601 can be fixed on a wall, and the control device 602 and the power supply device 601 are connected via a wiring terminal. Figure 7 As shown, it shows a three-dimensional structure diagram of the smart home central control device, where the power supply device 601 and the control device 602 are connected via connection terminals 1011 and 1021.

[0086] The first circuit board included in the current abnormality detection circuit is arranged on the power supply device 601, the second circuit board included in the current abnormality detection circuit is arranged on the control device 602, and the current detection module included in the current abnormality detection circuit is arranged on the first circuit board or the second circuit board ( Figure 7 The current detection module shown is arranged on the second circuit board).

[0087] When the current detection module is disposed on the second circuit board, a battery module may be disposed on the second circuit board, so that when a short circuit occurs between the first circuit board and the second circuit board, the current detection module can normally output a warning instruction. Accordingly, the warning module included in the current abnormality detection circuit may be disposed on the second circuit board, so that when the current detection module detects an abnormality in the device, the warning module can output a warning message.

[0088] The control device 602 may also include a display screen, which may be disposed on the second circuit board or connected to the second circuit board. The display screen may display various information (such as warning information), and the display screen may have a touch function, through which various furniture devices may be controlled.

[0089] The smart home central control device provided in the embodiment of the present application realizes real-time monitoring of the connection status of the power supply device and the control device by applying the above-mentioned current anomaly detection circuit. When a connection anomaly is detected, a first warning instruction is issued in time to enable the user to know the current device connection status in time, thereby preventing the device from being stolen and recovering from the device anomaly in time.

[0090] Figure 8A schematic diagram of the structure of a smart home system 800 provided in an embodiment of the present application is shown in FIG. Figure 8 As shown, the smart home system includes: the above-mentioned smart home central control device 600 and at least one smart home device 801 (including smart home device 1-smart home device M), and the smart home central control device and the at least one smart home device are communicatively connected. The smart home central control device 600 can control at least one smart home device.

[0091] The smart home system provided in the embodiment of the present application realizes real-time monitoring of the connection status of the smart home central control device by applying the above-mentioned smart home central control device. When a connection abnormality is detected, a first warning instruction is issued in time to enable the user to know the current device connection status in time, thereby preventing the device from being stolen and recovering from the device abnormality in time.

[0092] The professionals should further realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different circuits to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0093] The steps of the circuits or algorithms described in conjunction with the embodiments disclosed herein may be implemented using hardware, software modules executed by a processor, or a combination of the two. The software modules may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0094] It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments, and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used in the text may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The steps, processes, and operations described in the text are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0095] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A current abnormality detection circuit, characterized in that: The circuit comprises: a first circuit board, a second circuit board, and a current detection module, wherein the first circuit board comprises a first wiring terminal and a power supply module, the second circuit board comprises a second wiring terminal, and the first wiring terminal and the second wiring terminal are connected; The power supply module is connected to the power output pin of the first wiring terminal, and the power input pin of the second wiring terminal is connected to the power output pin, so that the power supply module provides power to the second circuit board; The current detection module is connected to the power output pin or the power input pin, and is used to: detect the current between the power output pin and the power input pin, and if the current value of the current is detected to be less than or equal to a preset current lower limit threshold, output a first warning instruction indicating that the first terminal and the second terminal are disconnected.

2. The circuit according to claim 1, characterized in that The circuit further comprises a warning module, wherein the warning module is connected to the current detection module; The current detection module is further used to: send a first warning instruction to the warning module; The warning module is used to output a first warning message according to the first warning instruction.

3. The circuit according to claim 2, characterized in that The current detection module is also used for: If it is detected that the current between the power output pin and the power input pin is greater than or equal to a preset current upper limit threshold, a second warning instruction is sent to the warning module; The warning module is further used to output a second warning message according to the second warning instruction.

4. The circuit according to claim 2, characterized in that The warning module includes an alarm sound output unit; The alarm sound output unit is used to receive the first warning information and output a prompt sound corresponding to the first warning information.

5. The circuit according to claim 2, characterized in that The warning module includes a communication unit; The communication unit is used for receiving the first warning information and sending the first warning information to a remote device.

6. The circuit according to claim 2, characterized in that The current detection module is arranged on the second circuit board, the second circuit board comprises at least one functional module, each functional module of the at least one functional module is connected to the current detection module; The current detection module is further used to: detect the input current of each functional module in the at least one functional module; For each functional module of the at least one functional module, if it is detected that the input current of the functional module is outside the preset current range corresponding to the functional module, a third warning instruction corresponding to the functional module is sent to the warning module; The warning module is further configured to output a third warning message according to the third warning instruction.

7. The circuit according to claim 6, characterized in that The circuit also includes a display screen module, and the display screen module is connected to the current detection module; The current detection module is further used for: for each functional module of the at least one functional module, if it is detected that the input current of the functional module is outside the preset current range corresponding to the functional module, sending the fault identification information corresponding to the functional module to the display screen module; The display screen module is used to display the received fault identification information.

8. The circuit according to claim 6, characterized in that The warning module includes an alarm sound output unit; The alarm sound output unit is used to receive the third warning information and output a prompt sound corresponding to the third warning information.

9. A smart home central control device, characterized in that: The smart home central control device comprises the current anomaly detection circuit according to any one of claims 1 to 8, as well as a power supply device and a control device, wherein the power supply device is fixedly installed at a preset position, and the control device is detachably installed on the power supply device; The first circuit board included in the abnormal current detection circuit is arranged on the power supply device, the second circuit board included in the abnormal current detection circuit is arranged on the control device, and the current detection module included in the abnormal current detection circuit is arranged on the first circuit board or the second circuit board.

10. A smart home system, characterized in that: The smart home system includes the smart home central control device according to claim 9 and at least one smart home device, and the smart home central control device and the at least one smart home device are communicatively connected.

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