WO2022126824A1 - Electric control box and control method therefor - Google Patents

Abstract

Disclosed are an electric control box and a control method therefor. The electric control box comprises a housing, a housing cover, a circuit breaker, a communication module, a detection device, and a controller. The housing is provided with an opening. The housing cover covers the opening of the housing. The circuit breaker is mounted within the housing. The communication module is mounted on the housing cover. The communication module is used for establishing a communication connection with a terminal device. The detection device comprises a current and voltage detection module. The current and voltage detection module is mounted within the housing and is connected to the circuit breaker. The current and voltage detection module is used for detecting a voltage signal and a current signal of the circuit breaker. The controller is mounted inside the housing cover, is connected respectively to the communication module and to the detection device, and is used for transmitting the voltage signal and the current signal to the terminal device via the communication module. The present application improves the structure of the electric control box, implements an interconnection between the electric control box and a local or remote terminal device, favors the real-time monitoring and control of the electric control box, and increases the safeness of electricity usage.

Description

Electric control box and control method thereof

This application claims the priority of the Chinese patent application filed on December 14, 2020 with the application number 202011468601.7 and the invention titled "Electric Control Box and its Control Method", the entire contents of which are incorporated in the application by reference.

technical field

The present application relates to the technical field of electric control boxes, and in particular, to an electric control box and a control method thereof.

Background technique

An electrical control box is a device that contains one or more low-voltage switchgear and related control, measurement, signal, protection, regulation, etc.

Circuit breakers and other electronic devices are installed in the box of the existing electric control box. However, when the electronic device in the electric control box fails or the power system has a problem, the staff cannot know the status of the electric control box and the power system in time. It is necessary to go to the site to check one by one, find the cause of the failure, and repair it. The whole process is complicated and takes a long time.

technical problem

The main purpose of the present application is to provide an electric control box and a control method thereof, aiming at realizing the interaction between the electric control box and the terminal equipment, facilitating maintenance and repairing, and improving the safety of electricity consumption.

technical solutions

In order to achieve the above purpose, the present application proposes an electric control box, the electric control box includes:

The box body is provided with an opening;

a box cover, which is covered on the opening of the box body;

a circuit breaker, installed in the box;

The communication module is installed on the box cover; the communication module is used to establish a communication connection with the terminal device;

a detection device, the detection device includes a current and voltage detection module, the current and voltage detection module is installed in the box and connected with the circuit breaker; the current and voltage detection module is used to detect the circuit breaker voltage and current signals; and

The controller is installed in the box cover and connected with the communication module and the detection device respectively, so as to send the voltage signal and the current signal to the terminal device through the communication module.

In one embodiment, the communication module includes:

A wired communication module, the wired communication module is an RS485 communication interface or an RS232 communication interface; and/or

A wireless communication module, the wireless communication module includes at least one of a WIFI module, a Bluetooth module, a LoRa module, a ZigBee module, a 4G module or a 5G module.

In one embodiment, the electric control box further includes:

a display screen, arranged on the box cover and connected with the controller;

The display screen is used to display the voltage signal and the current signal under the control of the controller.

In one embodiment, the detection device further includes a temperature sensor, and the temperature sensor is installed on the tank cover;

the temperature sensor for detecting temperature and sending a temperature signal to the controller;

The controller is further configured to control the display screen to display the temperature signal and/or send the temperature signal to the terminal device through the communication module.

In one embodiment, the detection device further includes a humidity sensor, and the humidity sensor is installed on the box cover;

the humidity sensor for detecting humidity and sending a humidity signal to the controller;

The controller is further configured to control the display screen to display the humidity signal and/or send the humidity signal to a terminal device through the communication module.

In an embodiment, the controller is further configured to determine the fault type according to the voltage signal and the current signal, the temperature signal and the humidity signal, and display the fault type and/or the fault type through the display screen. The fault type is sent to the terminal device through the communication module.

In one embodiment, the electric control box further includes an alarm, and the alarm is installed on the box cover and connected with the controller;

The controller is further configured to control the alarm to output an alarm signal when it is determined that the circuit breaker is faulty.

In order to achieve the above purpose, the present application also proposes a control method for an electric control box, the electric control box is the electric control box as described above, the electric control box includes a display screen, and the display screen is connected to the controller , the electric control box control method includes the following steps:

Obtain the voltage signal and the current signal detected by the current and voltage detection module;

Controlling the display screen to display the voltage signal and the current signal, and sending the voltage signal and the current signal to the terminal device;

Determine whether the electrical system is faulty according to the voltage signal and the current signal;

When the power consumption system fails, the circuit breaker is controlled to cut off the power supply of the power consumption system, and a first alarm signal is sent to the terminal device.

In one embodiment, the electric control box further comprises a temperature sensor and a humidity sensor respectively connected to the controller, before the step of acquiring the voltage signal and the current signal detected by the current and voltage detection module Also includes:

acquiring a temperature signal detected by the temperature sensor and a humidity signal detected by the humidity sensor;

controlling the display screen to display the temperature signal and the humidity signal, and sending the temperature signal and the humidity signal to the terminal device;

comparing the temperature signal with a preset temperature range value and the humidity signal with a preset humidity range value to determine whether the circuit breaker is working normally;

When the circuit breaker is in an abnormal working state, sending a second alarm signal and requesting a power-off instruction to the terminal device;

When a power-off instruction is received, the circuit breaker is controlled to cut off the power.

In an embodiment, the electric control box further includes a buzzer alarm, and after the step of determining whether the power consumption system fails according to the voltage signal and the current signal further includes:

When the electric power system fails, the buzzer alarm is controlled to output a third alarm signal.

beneficial effect

In the technical solution of the present application, since the electric control box includes a box body, a box cover, a circuit breaker, a communication module, a detection device and a controller, the box body is provided with an opening, and the box cover is arranged on the opening of the box body, and the circuit is disconnected. The device is installed in the box, the communication module is installed on the box cover, and the communication module is used to establish a communication connection with the terminal equipment. The detection device includes a current and voltage detection module. The current and voltage detection module is installed in the box and connected to the circuit breaker. And the voltage detection module is used to detect the voltage signal and current signal of the circuit breaker. The controller is installed in the box cover and connected with the communication module and the detection device respectively, so as to send the voltage signal and the current signal to the terminal equipment through the communication module. The interaction between the electric control box and the terminal equipment is realized, which facilitates maintenance and repairs, and improves the safety of electricity consumption.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without any creative effort.

1 is a schematic structural diagram of a box cover in an embodiment of an electric control box of the application;

2 is an exploded view of a box cover in an embodiment of the electric control box of the application;

FIG. 3 is a schematic structural diagram of the electric control box according to an embodiment of the present application when the box cover is in the capping position;

4 is a schematic structural diagram of an electric control box in an embodiment of the present application when the box cover is in an open position;

5 is a structural diagram of a fault detection system in an embodiment of an electrical control box of the application;

6 is a schematic flowchart of an embodiment of a control method for an electric control box of the present application;

FIG. 7 is a schematic flowchart of another embodiment of the control method of the electric control box of the present application.

Description of reference numbers:

label	name	label	name
10	box	40	Communication module
20	box cover	60	controller
30	breaker	51	Current and Voltage Sensing Modules
50	Detection device	53	Humidity Sensor
52	Temperature Sensor	61	Status Indicator
70	display	62	voice device
63	Camera	210	base
220	Active cover	230	cant see thing
64	Alarm system

The realization, functional characteristics and advantages of the purpose of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Embodiments of the present invention

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, the descriptions involving "first", "second", etc. in this application are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the meaning of "and/or" in the whole text is to include three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, scheme B, or scheme that A and B satisfy at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection claimed in this application.

An electrical control box is a device that contains one or more low-voltage switchgear and related control, measurement, signal, protection, regulation, etc.

In an exemplary technology, electronic devices such as circuit breakers are arranged in the box of the electric control box. However, when the electronic device in the electric control box fails or there is a problem with the power system, the staff cannot know the electric control box in time. And the state of the power system, it is necessary to go to the site to check one by one, find the cause of the failure, and repair it. The whole process is more complicated.

In order to realize the interaction between the electric control box and the terminal equipment, facilitate maintenance and repair, and improve the safety of electricity use, the present application proposes an electric control box, especially an electric control box installed with electronic devices such as circuit breakers, which is not limited here.

1 to 5 , in an embodiment of the present application, the electric control box includes a box body 10 , a box cover 20 , a circuit breaker 30 , a communication module 40 , a detection device 50 and a controller 60 , and the box body 10 is provided with an opening The box cover 20 is covered on the opening of the box body 10; the circuit breaker 30 is installed in the box body 10; the communication module 40 is installed on the box cover 20; the communication module 40 is used to establish a communication connection with the terminal equipment; Current and voltage detection module 51, the current and voltage detection module 51 is installed in the box 10 and connected to the circuit breaker 30; the current and voltage detection module 51 is used to detect the voltage signal and current signal of the circuit breaker 30; the controller 60 is installed in The box cover 20 is connected with the communication module 40 and the detection device 50 respectively, so as to send the voltage signal and the current signal to the terminal equipment through the communication module 40 .

Wherein, the box body 10 and the box cover 20 can be assembled from a plurality of plastic or metal parts, or can be a combination of plastic parts and metal parts, or can be an integrally formed structure, which is not limited here.

In this embodiment, the communication module 40 is interconnected with a short-range or remote terminal device through the Internet or a local area network, and the device end can support the TCP/IP protocol.

The communication module 40 can be a wired communication module, such as: RS485 communication interface or RS232 communication interface, etc.; the communication module 40 can also be a wireless communication module, such as: WIFI module, Bluetooth module, LoRa module, ZigBee module, 2G module, 3G module, 4G module At least one of modules such as modules or 5G modules.

In this embodiment, the controller 60 may be a micro-processing unit such as a single-chip microcomputer, a DSP, and an FPGA, which is not limited here.

Of course, in some embodiments, the box cover 20 of the electric control box may also have both a wired communication module and a wireless communication module, so as to be applicable to more application scenarios and improve practicability.

It can be understood that in this application, the box body 10 of the electric control box is provided with an opening, the box cover 20 is covered on the opening of the box body 10, the circuit breaker 30 is installed in the box body 10, and the communication module 40 is installed in the box. On the cover 20, the communication module 40 is used to establish a communication connection with the terminal equipment. The detection device 50 includes a current and voltage detection module 51. The current and voltage detection module 51 is installed in the box body 10 and connected to the circuit breaker 30. Current and voltage detection The module 51 is used to detect the voltage signal and current signal of the circuit breaker 30 , and the controller 60 is installed in the box cover 20 and is connected to the communication module 40 and the detection device 50 respectively, so as to transmit the voltage signal and the current signal through the communication module 40 For the terminal equipment, the interaction between the electric control box and the terminal equipment is realized, which is convenient for maintenance and repair, and improves the safety of electricity consumption.

In some embodiments, referring to FIG. 1 to FIG. 4 , the box cover 20 may include a base 210 and a movable cover 220 slidably connected with the base 210 , so as to expose electronic devices such as the circuit breaker 30 in the electric control box, thereby facilitating the The circuit breaker 30 is closed or opened.

In order to realize real-time monitoring of the power consumption system to improve power consumption safety, in an embodiment, referring mainly to FIG. 2 and FIG. 5 , the electric control box may further include a display screen 70 , and the display screen 70 is arranged on the box cover 20 , the display screen 70 is used to display the voltage signal and the current signal under the control of the controller 60 .

It should be noted that, in some embodiments, referring mainly to FIG. 2 , the box cover 20 may further include a transparent plate 230 , and the transparent plate 230 is covered on the display screen 70 to protect the display screen 70 from being scratched.

In this embodiment, the display screen 70 may be a touch screen such as LCD or OLED or a conventional LED display screen, etc., which is not limited here.

It is worth mentioning that the display screen 70 can have a first display area, a second display area and a third display area adjacent to the first display area respectively; the first display area can be used to display current time information; the second display area can be used It is used to display the local weather information; the third display area can be used to display the electrical parameters of the circuit breaker 30 and other electronic devices. Of course, in some other embodiments, the display screen 70 may also be provided with more display areas to display more abundant information.

Based on the above-mentioned embodiment, in an embodiment, referring to FIG. 5 , the detection device 50 may further include a temperature sensor 52 , which is installed on the box cover 20 ; the temperature sensor 52 is used for detecting temperature and sending a temperature signal to the controller 60 . ; The controller 60 is also used to control the display screen 70 to display the temperature signal.

In this embodiment, the temperature sensor 52 detects the current temperature in the electric control box, and the controller 60 compares and analyzes the current temperature with the system preset temperature range value. When the current temperature is not within the system preset temperature range value, the controller 60 can control the display screen 70 to display the alarm signal and/or send the temperature signal to the terminal device through the communication module 40 to remind the user or staff that the electronic device or the power consumption system in the electric control box is faulty.

In order to more accurately determine whether there is an abnormality in the electronic device or the electrical system in the electric control box, in one embodiment, referring to FIG. 5 , the detection device 50 may further include a humidity sensor 53 , and the humidity sensor 53 is installed on the box cover 20; The humidity sensor 53 is used to detect the humidity and send the humidity signal to the controller 60; the controller 60 is also used to control the display screen 70 to display the humidity signal and/or send the humidity signal to the terminal device through the communication module 40.

It can be understood that, in this embodiment, the controller 60 can compare and analyze the current temperature signal and humidity signal of the electric control box and the system preset range value, and when the current temperature is not within the system preset temperature range, and /or when the current humidity is not within the preset humidity range of the system, the controller 60 controls the display screen 70 to display an alarm signal and/or sends the alarm signal to the terminal device through the communication module 40 to remind the user or staff that the inside of the electric control box is An abnormality has occurred in the electronic device or power consumption system.

In this embodiment, the controller 60 can also be used to determine the fault type according to the voltage signal, the current signal, the temperature signal and the humidity signal, and send it to the terminal device or control the display screen 70 to display the fault type, so that the user or staff can know the fault type at any time. The operating state of the electrical system.

Further, in order to enhance the alarm effect, so that the user or the staff can know in time that an abnormal situation occurs in the power consumption system, in one embodiment, referring to FIG. Installed on the tank cover 20 and connected with the controller 60; the alarm 64 is used for outputting an alarm signal when the controller 60 determines that the circuit breaker 30 is faulty.

The alarm device 64 can be a honey device, a horn and a status indicator light 61 (as shown in FIG. 3 , a plurality of status indicator lights 61 are used in this implementation), and the alarm signal can be a sound signal or a light signal, etc. limited.

In an application scenario, when the electronic components such as the circuit breaker 30 in the electric control box are in a normal working state, the controller 60 can control the light-emitting color of the status indicator 61 to be green; when the circuit breaker 30 in the electric control box, etc. When the electronic components are in a fault state, the controller 60 can control the luminous color of the status indicator 61 to be red and to flash continuously to remind staff or users that the power system has a fault and needs to be eliminated in time. Therefore, the intelligent electric control box of this embodiment can greatly improve the safety of electricity consumption.

In one embodiment, referring to FIG. 5 , the electric control box may further include a camera 63 , which is installed on the box cover 20 and connected with the controller 60 ; the camera 63 is used to shoot video or The photo is displayed on the display screen 70 .

Further, in an embodiment, referring mainly to FIG. 5 , the electric control box may further include a voice device 62 , the voice device 62 is installed on the box cover 20 , and the voice device 62 is connected to the controller 60 ; the voice device 62 is used for Receive sound signals and/or play sound signals.

In this embodiment, the camera 63 provided on the box cover 20 can play a variety of roles. On the one hand, when the electrical system fails, the camera 63 cooperates with the above-mentioned voice device 62 to realize a real-time video call, so that the user and the maintenance personnel can communicate with each other. Timely communication can improve the efficiency of troubleshooting; on the other hand, during the normal use of the electric control box, the camera 63 can also monitor the indoor environment such as the office in real time and display the monitoring picture through the display screen 70, and the controller 60 can also use video The signal determines whether there is personnel activity in the room, and when all personnel leave the office and reach the preset time of the system, the controller 60 can control the electric control box to perform automatic power-off operation to save power.

Of course, the camera 63 can also monitor the safety of pets or indoor items kept at home, and users can check the situation at home through mobile terminal devices such as mobile phones at any time to avoid pets being lost or items being stolen.

In addition, in some usage environments, the voice device 62 of the electric control box combined with the display screen 70 can also realize a visual doorbell function.

The present application also proposes a control method for an electric control box. Based on the above electric control box, the electric control box includes a display screen 70, and the display screen 70 is connected to the controller 60, as shown in FIG. 6, which is the electric control box of the application A schematic flowchart of an embodiment of the control method. In this embodiment, the control method of the electric control box includes:

S10, obtain the voltage signal and the current signal detected by the current and voltage detection module 51;

S20, controlling the display screen 70 to display the voltage signal and the current signal, and sending the voltage signal and the current signal to the terminal device;

S30, according to the voltage signal and the current signal, determine whether the power consumption system is faulty;

S40, when the power consumption system fails, control the circuit breaker 30 to cut off the power supply of the power consumption system, and send a first alarm signal to the terminal device.

In this embodiment, the current and voltage detection module 51 can be installed in the box body 10 of the electric control box, the temperature sensor 52 and the humidity sensor 53 can be installed on the box cover 20 , and the display screen 70 can also be embedded in the box cover 20 , which is not limited here.

It can be understood that the voltage and current signals detected by the current and voltage detection module 51 of the electrical control box of the present application, and then the voltage and current information through the display screen 70 under the control of the controller 60, and can be transmitted through the communication module 40. The voltage and current information is sent to the terminal equipment, so that the user can check the voltage and current information in time, and can receive the alarm information in time when the power system fails, which greatly improves the safety of power consumption.

It should be noted that the terminal device may be a portable terminal device, such as a mobile phone, a tablet, etc., and the controller 60 may establish a communication connection with the terminal device in a wireless or wired manner.

In some other embodiments, the electric control box further includes a buzzer alarm 64, and after the step of determining whether the electric power system is faulty according to the voltage signal and the current signal, further includes:

S50, control the buzzer alarm 64 to output a third alarm signal when the power consumption system fails.

In this embodiment, when a fault occurs, the electric control box can send out an alarm through the buzzer alarm 64 to remind the user or the management personnel, thereby further improving the safety of electricity consumption.

As shown in FIG. 7 , FIG. 7 is a schematic flow chart of another embodiment of the control method of the electric control box of the present application. In this embodiment, the electric control box further includes a temperature sensor 52 and a humidity sensor 53 respectively connected to the controller 60 . Before the step of acquiring the voltage signal and the current signal detected by the current and voltage detection module 51, it further includes:

S01, acquiring the temperature signal detected by the temperature sensor 52 and the humidity signal detected by the humidity sensor 53;

S02, controlling the display screen 70 to display the temperature signal and the humidity signal, and sending the temperature signal and the humidity signal to a terminal device;

S03, comparing the temperature signal with a preset temperature range value and the humidity signal with a preset humidity range value to determine whether the circuit breaker 30 is working normally;

S04, when the circuit breaker 30 is in an abnormal working state, send a second alarm signal and a power-off request instruction to the terminal device;

S05, control the circuit breaker 30 to cut off the power supply when receiving the power-off instruction.

In this implementation, the electric control box can monitor its internal environment in real time, the temperature sensor 52 detects the temperature signal, the humidity sensor 53 detects the humidity signal, and the controller 60 determines whether the temperature and humidity in the electric control box are normal. When the circuit breaker 30 is in abnormal operation, its heat generation is usually large, and the surrounding humidity value will also decrease. At this time, the temperature signal and the humidity signal are both in an abnormal state, and the electric control box sends a second alarm signal through the communication module 40. And request a power-off command to the terminal equipment to remind the user or staff that after the power-off command is issued, the electric control box can automatically control the circuit breaker 30 to cut off the power supply.

The above descriptions are only optional embodiments of the present application, and are not intended to limit the patent scope of the present application. Under the inventive concept of the present application, any equivalent structural transformations made by using the contents of the description and drawings of the present application, or direct/indirect Applications in other related technical fields are included in the scope of patent protection of this application.

Claims (12)

1. An electric control box, wherein the electric control box comprises:

   The box body is provided with an opening;

   a box cover, which is covered on the opening of the box body;

   a circuit breaker, installed in the box;

   The communication module is installed on the box cover; the communication module is used to establish a communication connection with the terminal device;

   a detection device, the detection device includes a current and voltage detection module, the current and voltage detection module is installed in the box and connected with the circuit breaker; the current and voltage detection module is used to detect the circuit breaker voltage and current signals; and

   The controller is installed in the box cover and connected with the communication module and the detection device respectively, so as to send the voltage signal and the current signal to the terminal device through the communication module.
2. The electric control box according to claim 1, wherein the communication module comprises:

   A wired communication module, the wired communication module is an RS485 communication interface or an RS232 communication interface.
3. The electric control box according to claim 1, wherein the communication module comprises:

   A wireless communication module, the wireless communication module includes at least one of a WIFI module, a Bluetooth module, a LoRa module, a ZigBee module, a 4G module or a 5G module.
4. The electric control box according to claim 1, wherein the electric control box further comprises:

   a display screen, arranged on the box cover and connected with the controller;

   The display screen is used to display the voltage signal and the current signal under the control of the controller.
5. The electric control box according to claim 4, wherein the detection device further comprises a temperature sensor, and the temperature sensor is mounted on the box cover;

   the temperature sensor for detecting temperature and sending a temperature signal to the controller;

   The controller is further configured to control the display screen to display the temperature signal and/or send the temperature signal to the terminal device through the communication module.
6. The electric control box according to claim 5, wherein the detection device further comprises a humidity sensor, and the humidity sensor is installed on the box cover;

   the humidity sensor for detecting humidity and sending a humidity signal to the controller;

   The controller is further configured to control the display screen to display the humidity signal and/or send the humidity signal to a terminal device through the communication module.
7. The electric control box according to claim 6, wherein the controller is further configured to determine the fault type according to the voltage signal and the current signal, the temperature signal and the humidity signal, and display it through the display screen The fault type and/or the fault type is sent to the terminal device through the communication module.
8. The electric control box according to claim 7, wherein the electric control box further comprises an alarm, and the alarm is installed on the box cover and connected with the controller;

   The controller is further configured to control the alarm to output an alarm signal when it is determined that the circuit breaker is faulty.
9. The electric control box according to claim 4, wherein the electric control box further comprises a camera, and the camera is mounted on the box cover and connected with the controller;

   The camera is used to shoot video or photos under the control of the controller, and display them through the display screen.
10. A control method of an electric control box, the electric control box is the electric control box according to any one of claims 1 to 9, wherein the electric control box comprises a display screen, the display screen and the controller connection, the electric control box control method includes the following steps:

    Obtain the voltage signal and the current signal detected by the current and voltage detection module;

    Controlling the display screen to display the voltage signal and the current signal, and sending the voltage signal and the current signal to the terminal device;

    Determine whether the electrical system is faulty according to the voltage signal and the current signal;

    When the power consumption system fails, the circuit breaker is controlled to cut off the power supply of the power consumption system, and a first alarm signal is sent to the terminal device.
11. The control method of an electric control box according to claim 10, wherein the electric control box further comprises a temperature sensor and a humidity sensor respectively connected to the controller, and the detection module detects the current and voltage in the acquisition of the current and voltage. The steps of the voltage signal and the current signal also include:

    acquiring a temperature signal detected by the temperature sensor and a humidity signal detected by the humidity sensor;

    controlling the display screen to display the temperature signal and the humidity signal, and sending the temperature signal and the humidity signal to the terminal device;

    comparing the temperature signal with a preset temperature range value and the humidity signal with a preset humidity range value to determine whether the circuit breaker works normally;

    When the circuit breaker is in an abnormal working state, sending a second alarm signal and requesting a power-off instruction to the terminal device;

    When a power-off instruction is received, the circuit breaker is controlled to cut off the power.
12. The control method of an electric control box according to claim 11, wherein the electric control box further comprises a buzzer alarm, and after the step of determining whether the electric power system is faulty according to the voltage signal and the current signal further comprises:

    When the electric power system fails, the buzzer alarm is controlled to output a third alarm signal.