CN112833551B - Control method of bidirectional radio frequency water heater and water heater - Google Patents

Abstract

The invention relates to a control method of a bidirectional radio frequency water heater and the water heater, wherein the water heater comprises a water heater control unit and a remote control terminal which can be in communication connection with the water heater control unit; the control method comprises the following steps: the remote control terminal is in communication connection with the control unit of the water heater through the radio frequency communication module, and data transmission is carried out once at intervals after communication is established. And the radio frequency communication module acquires the current running state of the water heater from the control unit of the water heater every time of T1, and refreshes the running parameters of the water heater displayed on the display screen of the remote control terminal. The control method of the bidirectional radio frequency water heater provided by the invention not only realizes effective bidirectional communication, but also enables the running state of the water heater to be displayed on the remote control terminal, brings better use experience to users, simultaneously reduces the power consumption to the greatest extent, and prolongs the service time of the battery.

Description

A control method of a two-way radio frequency water heater and the water heater

technical field

The invention relates to the technical field of household appliances, in particular to a control method of a two-way radio frequency water heater and the water heater.

Background technique

At present, most of the solar heat pump water heaters on the market are operated by wire controllers. Since wire controllers need to arrange wire grooves in the wall before installing the water heater, or plan wire grooves in the wall before building decoration and construction, it is convenient for installation, which brings a lot of inconvenience. After the renovation, the solar heat pump water heater is installed again, and the wire controller communication line can only be placed outside, which not only affects the overall visual effect of the building, but also has certain safety hazards. Therefore, we propose to use the remote control instead of the wire controller. In addition, long-distance wiring is susceptible to external environmental interference such as lightning strikes, and is easily bitten by small animals or corroded by corrosive liquids. Once the communication fails, it may lead to safety hazards in the water heater, such as excessive water temperature causing users to be scalded.

Most water heater remote controllers on the market generally use infrared remote control or 2.4GHZ communication mode, which can only realize the one-way control function, and cannot display the running status of the water heater in real time. Water heater control. In addition, the infrared remote control or 2.4GHZ communication method consumes a lot of power, the remote control distance is also quite limited, and the ability to penetrate walls is weak. It is very inconvenient to face a living space with a large area and many walls, and cannot achieve long-term effective communication. For the existing two-way communication remote control, the power consumption is relatively large, and the power loss is serious. The battery even needs to be replaced once a month. Users need to replace the battery frequently, which seriously affects the user experience.

In view of this, the present invention is proposed.

Contents of the invention

The purpose of the present invention is to provide a two-way radio frequency water heater control method, which not only realizes two-way communication, but also enables the remote control terminal to display the running status of the water heater, thereby enabling users to have a better experience. At the same time, we adopt an optimized control method, Make the power consumption of the remote control terminal reach the lowest level, and avoid the defect that the user frequently replaces the battery.

In order to realize the above-mentioned purpose of the invention, adopt following technical scheme:

A control method for a two-way radio frequency water heater, the water heater includes a water heater control unit and a remote control terminal that can communicate with the water heater control unit;

The control method includes: establishing a communication connection between the remote control terminal and the control unit of the water heater through a radio frequency communication module, and performing data transmission at intervals of a set time after the communication is established.

Further, the remote control terminal includes a processor, and the radio frequency communication module obtains the current operating status of the water heater from the control unit of the water heater every T1 time interval, and transmits it to the processor of the remote control terminal, and the processor Refresh the operating parameters of the water heater displayed on the display screen of the remote control terminal;

Preferably, the T1=30s.

Further, the user starts to set the working parameters of the water heater through the remote control terminal. If the user does not detect the user's continued operation signal within the interval T2, it is determined that the user has completed the setting this time, and the water heater will be sent to the water heater according to the working parameters currently set by the user. The control unit sends a control command;

Preferably, T2=5s.

Further, after it is determined that the user has completed the setting this time, the control command is automatically sent; or, the user is prompted to confirm whether to send the current control command. The working parameters currently set by the user send control commands normally;

Preferably, if the remote control terminal does not receive a new operation command from the user within a certain period of time after sending the control command, it controls the radio frequency communication module to enter a dormant state.

Further, the remote control terminal further includes a battery voltage detection unit connected to the input terminal of the processor, and the battery voltage detection unit is used to detect the voltage of the battery of the remote control terminal;

When the voltage of the battery of the remote control terminal drops to the set voltage U1, the battery voltage detection unit starts to detect the voltage of the battery of the remote control terminal every time T3, and reminds the user if the detected voltage is lower than U2 Low battery power, voltage U2<voltage U1;

More preferably, the T3=30s.

Further, the remote control terminal includes a touch operation unit connected to the input terminal of the processor, the touch operation unit adopts the intermittent working state of sleep and wake-up, and the touch operation unit is set from sleep to The time period until wake-up is T4, and the touch operation unit is woken up once every time T4;

Preferably, the T4≤100ms.

Further, when the touch operation unit detects that the user has an operation signal, the touch operation unit remains in the wake-up state during the process of setting parameters by the user, and does not receive any signal within a certain period of time after it is determined that the user has completed the setting this time. When there is a new operation signal from the user, it will enter the intermittent working state of dormancy and wake-up.

Further, the remote control terminal also includes a backlight display unit connected to the output end of the processor. When the user operates the touch operation unit, the backlight display unit is turned on, and when there is no operation, the backlight display unit is controlled to keep Disabled.

Further, during the process of establishing a communication connection between the remote control terminal and the water heater control unit, if it is detected that the number of times that the remote control terminal applies for establishing a communication connection with the water heater control unit exceeds the set number N0, and the communication has not been established, the above-mentioned An application for establishing communication between the remote control terminal and the control unit of the water heater, and sending a prompt message;

Preferably, N0=300.

Further, the present invention also provides a water heater with the control method of any of the above two-way radio frequency water heaters, the water heater includes a water heater control unit, a radio frequency communication module, and a remote control terminal, and the remote control terminal uses the radio frequency The communication module establishes a two-way communication connection.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

1. The control method of the two-way radio frequency water heater provided by the present invention, the remote control terminal and the water heater control unit carry out two-way communication through the 433Mhz radio frequency module, and the long-distance communication line is removed, and the remote control terminal can obtain the water heater from the water heater control unit at the same time The operating status of the water heater is transmitted to the remote control terminal through the radio frequency communication module, so that the remote control terminal can not only control the operation of the water heater, but also display the water temperature and other status of the water heater in real time, which is convenient for people living in a larger living environment. Easy and quick operation of the water heater.

2. The remote control terminal of the present invention establishes a communication connection with the control unit of the water heater through a radio frequency communication module, and after the communication is established, data transmission is performed at intervals of a set time, and the radio frequency communication module transmits data from the control unit of the water heater at intervals of T1. The unit obtains the current running state of the water heater, and transmits it to the processor of the remote control terminal, and the processor refreshes and displays the running parameters of the water heater on the display screen of the remote control terminal. Instead of refreshing and displaying the operating parameters of the water heater in real time, the power consumption of each input and output unit of the remote control terminal is minimized, the battery life is extended to the greatest extent, and the trouble of frequent battery replacement is avoided, making users feel more convenient, safe and A wonderful life experience.

3. The control method provided by the present invention does not send a command to the control unit of the water heater every time a parameter is set during the process of setting the working parameters of the water heater through the remote control terminal, but after judging that the user has completed the setting this time, instead After judging that the user has finished setting this time, all the working parameter commands set by the user this time are sent to the control unit of the water heater at one time, so as to reduce the number of radio frequency transmissions to the greatest possible extent to reduce power consumption.

4. When it is detected that the voltage of the battery drops to U1, the battery voltage detection unit starts to monitor the voltage of the battery, thereby reducing the waste of power consumption caused by unnecessary voltage detection of new batteries. Moreover, when the battery voltage drops to U1, the voltage of the battery of the remote control terminal is detected every interval of T3, and if the detected voltage is lower than U2, the user is reminded that the battery is low, and the detection is performed at regular intervals instead of in real time. Detection, reducing the number of detections by the battery voltage detection unit to reduce power consumption.

5. In the process of establishing a communication connection between the remote control terminal and the control unit of the water heater, if the control unit of the water heater is not powered on or fails, only the remote control terminal is working, which will cause the remote control terminal to continuously apply for communication connection, resulting in Larger power consumption, the remote control terminal provided by the present invention has increased the communication link judging function, when the number of communications exceeds 300 times, the communication connection has not been established, that is, it is judged that the communication link is abnormal, and the remote control terminal is stopped from sending water heaters to the water heater. The control unit applies for a communication connection and prompts the user through an alarm, effectively avoiding unnecessary application operations and reducing power consumption.

The invention provides a control method for a two-way radio frequency water heater, which not only realizes effective two-way communication, brings better user experience to users, but also reduces power consumption to the greatest extent and prolongs the use time of batteries.

Description of drawings

Fig. 1 is a block diagram of the water heater control unit and the remote control terminal control principle in the embodiment of the present invention;

Figure 2 is a functional block diagram of a remote control terminal in an embodiment of the present invention;

Fig. 3 is a schematic flow chart of the control logic of the water heater in the embodiment of the present invention;

Fig. 4 is another schematic flow chart of the control logic of the water heater according to the embodiment of the present invention;

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The present invention will be further described in detail below in conjunction with the examples.

As shown in Figure 1, the present invention provides a control method for a two-way radio frequency water heater, the water heater includes a water heater control unit, a radio frequency communication module, and a remote control terminal, and the remote control terminal establishes a two-way communication connection through the radio frequency communication module . The radio frequency communication module preferably uses a 433Mhz radio frequency module, which has the advantages of strong signal penetration, low power consumption, moisture-proof, waterproof, etc. The remote control terminal and the water heater control unit are connected through the 433Mhz radio frequency module. Two-way communication, the long-distance communication line is removed between the water heater and the remote control terminal provided by the present invention, the remote control terminal through the 433Mhz radio frequency module can control the water heater more conveniently and efficiently, and at the same time, the operating status of the water heater can also be obtained from the water heater control unit , to transmit the running state of the water heater to the remote control terminal, so that the remote control terminal can not only control the operation of the water heater, but also display the water temperature and other status of the water heater in real time, which is convenient for people living in a large living environment to operate the water heater more conveniently and quickly.

The water heater control unit and the remote control terminal of the present invention can transmit information to each other, and the remote control terminal can be placed in the living room, bedroom, study, kitchen or installed in the bathroom through radio frequency remote control, which is convenient for users to operate and understand the use of the water heater at any time The remote control terminal displays the current water temperature and working mode of the water heater and other parameters, making it easier for users to adjust the heating temperature, water volume, heating power, heating time and other parameters of the water heater by operating the remote control terminal, making the use of the water heater more convenient. practical.

As shown in Figure 2, the remote control terminal can be a remote control or other remote control terminals. The remote control terminal provided in this embodiment includes three parts, an input part, a central processing part, and an output part; wherein the input part includes a touch button, a battery Voltage detection unit, RF receiver; the central processing part is a single-chip processor; the output part includes backlight display lights, buzzers, RF transmitters, and LCD screens; each sub-module has a certain power consumption, through a certain work The logic controls the working status of these modules, so that the power consumption of the remote control terminal is minimized.

In the above scheme: the single chip microcomputer is used to execute the functions of the control unit and the arithmetic logic unit; the touch button is used to receive user operation instructions, and the user can set and adjust the working parameters of the water heater by touching the button, such as setting and adjusting the heating temperature, water volume, Heating power, heating time and other parameters; battery voltage detection unit, used to detect the battery power of the remote control terminal, reminding the user to replace the battery or charge it in time when the power is too low; radio frequency receiver, used to receive radio frequency information; backlight display light , lights up when the user operates the touch button, avoiding inconvenient operation in the dark or in dark places, it is convenient for the user to set the working parameters of the water heater; the buzzer sends out a sound to remind the user when receiving the user's control command; radio frequency The transmitter is used to send and receive radio frequency information; the liquid crystal display is used to display the working parameters of the current running state of the water heater obtained by the remote control terminal from the control unit of the water heater, such as the working mode of the water heater, the temperature of hot water and other parameters.

As shown in Figures 1 to 4, the present invention provides a method for controlling a two-way radio frequency water heater. The water heater includes a water heater control unit and a remote control terminal that can communicate with the water heater control unit; the control method includes: The remote control terminal establishes a communication connection with the control unit of the water heater through a radio frequency communication module, and after the communication is established, data transmission is performed every set time. After the communication between the remote control terminal and the control unit of the water heater is established, data transmission is not carried out in real time, but data transmission is carried out every set time interval to reduce the frequency of data transmission, without affecting the normal use of users. At the same time, the function loss of the remote control terminal and the water heater is minimized.

Specifically, the remote control terminal includes a processor, the processor is a single-chip microcomputer, and the radio frequency communication module obtains the current operating status of the water heater from the control unit of the water heater at intervals of T1, and transmits it to the remote control terminal for processing On the water heater, the processor refreshes and displays the operating parameters of the water heater on the display screen of the remote control terminal; the remote control terminal of the present invention establishes a communication connection with the control unit of the water heater through a radio frequency communication module, and sets the parameters at intervals after the communication is established. The radio frequency communication module obtains the current operating status of the water heater from the control unit of the water heater every T1 time, and transmits it to the processor of the remote control terminal, and the processor refreshes the display on the remote control terminal The operating parameters of the water heater on the display.

Preferably, when T1=30s, the working parameters on the display screen of the remote control terminal are refreshed every 30 seconds, rather than the operating parameters of the water heater are refreshed and displayed in real time, so that the power consumption of each input and output unit of the remote control terminal is minimized, Extend the battery life to the greatest extent, avoid the trouble of frequent battery replacement, and make users feel more convenient, safe and beautiful life experience.

Further, the user starts to set the working parameters of the water heater through the remote control terminal. If the user does not detect the user's continued operation signal within the interval T2, it is determined that the user has completed the setting this time, and the water heater will be sent to the water heater according to the working parameters currently set by the user. The control unit sends the control command; the water heater control method provided by the present invention and in the process of setting the water heater working parameters through the remote control terminal, the user does not send the water heater control unit every time a parameter is set during the process of setting the water heater working parameters. One command, but after judging that the user has completed the setting this time, send all control commands to the control unit of the water heater at one time, reducing the number of radio frequency transmissions as much as possible to reduce power consumption.

Preferably, T2=5s, in the process of setting the working parameters of the water heater by the user through the remote control terminal, if it is not detected that the user continues to operate after an interval of more than 5 seconds, then it is determined that the parameter setting of the user is completed this time, and the user's current parameter setting is completed. All the set working parameter commands are sent to the control unit of the water heater at one time, reducing the number of times of sending control commands to the control unit of the water heater, and reducing the power consumption of the remote control terminal.

Further, after determining that the user has finished setting this time, the remote control terminal automatically sends the control command; or, prompts the user whether to confirm sending the current control command, if it is detected that the user inputs "yes" or waits for a certain period of time without detecting that the user has responded , the control command is normally sent according to the working parameters currently set by the user, and the user is prompted for confirmation before sending the control command, which effectively avoids the phenomenon that the working parameters set by the user are wrong or missing, and ensures the accuracy of the sent control command .

Preferably, if the remote control terminal does not receive a new operation command from the user within a certain period of time after sending the control command, it controls the radio frequency communication module to enter a sleep state, so as to reduce unnecessary functional loss of the radio frequency communication module.

Further, as shown in FIG. 4 , the remote control terminal further includes a battery voltage detection unit connected to the input terminal of the processor, and the battery voltage detection unit is used to detect the voltage of the battery of the remote control terminal. When the voltage of the battery of the remote control terminal drops to the set voltage U1, the battery voltage detection unit starts to monitor and prompts the user; when it detects that the voltage of the battery drops to U1, the battery voltage detection unit starts to monitor the voltage of the battery , thereby reducing the waste of power consumption caused by unnecessary voltage detection of new batteries.

Preferably, when the voltage of the battery of the remote control terminal drops to the set voltage U1, the battery voltage detection unit starts to detect the voltage of the battery of the remote control terminal every time T3, if the detected voltage is lower than U2 Then remind the user that the battery power is insufficient, and the voltage U2<voltage U1; and, when the battery voltage drops to U1, the voltage of the remote control terminal battery is detected once every T3 time, and if the detected voltage is lower than U2, the user is reminded that the battery Insufficient battery, remind the user to replace the battery or charge it in time to avoid the low battery and make the remote control terminal unable to use normally. When the voltage of the battery of the remote control terminal drops to the set voltage U1, it detects once at regular intervals instead of real-time detection, so as to reduce the number of times of detection by the battery voltage detection unit to reduce power consumption.

More preferably, said T3=30s, the battery voltage detection unit detects the voltage of the battery of the remote control terminal every 30 seconds, and on the premise of ensuring that the battery can be found to be insufficient in time, the detection times of the battery voltage detection unit are minimized to thereby Reduce power consumption.

The invention provides a control method for a two-way radio frequency water heater, which not only realizes effective two-way communication, brings better user experience to users, but also reduces power consumption to the greatest extent and prolongs the use time of batteries.

Further, the remote control terminal includes a touch operation unit connected to the input terminal of the processor, the touch operation unit adopts the intermittent working state of sleep and wake-up, and the touch operation unit is set from sleep to The time period until wake-up is T4, and the touch operation unit is woken up once every interval of T4. The touch operation unit is not always in the working state, but works intermittently, which reduces the duration of normal work and reduces the power consumption. consumption. Preferably, T4≤100ms, and the cycle from sleep to wake-up is controlled within 100ms, which will not affect the user's operating experience, and can reduce the power consumption of the touch button module to a few tenths of the original.

Further, the touch operation unit includes a touch control chip and a pressing spring. When the touch control chip detects that the user has a pressing operation signal, the touch operation unit remains in the wake-up state during the process of setting parameters by the user. , if no new operation signal from the user is received within a certain period of time after the user is determined to complete the setting this time, it will enter the dormant and wake-up intermittent working state.

Further, the remote control terminal also includes a backlight display unit connected to the output end of the processor. When the user operates the touch operation unit, the backlight display unit is turned on, and when there is no operation, the backlight display unit is controlled to keep Disabled.

Further, the remote control terminal also includes a buzzer unit connected to the output end of the processor, and when it is detected that the user starts to operate the touch operation unit, the buzzer unit is started to sound, and the buzzer The unit turns off after sounding for t seconds.

Furthermore, when the water heater control unit establishes a communication connection with the remote control terminal for the first time; or if the communication is interrupted due to reasons such as a power failure of the water heater, the remote control terminal and the water heater control unit must re-establish a communication connection. During the establishment of the communication connection, if It is detected that the number of times that the remote control terminal applies to establish a communication connection with the water heater control remote control terminal and the water heater control unit exceeds the set number N0, and the communication has not been established, then the establishment of communication between the remote control terminal and the control unit of the water heater is suspended. Apply, and send a prompt message, preferably, N0=300. In the process of establishing a communication connection between the remote control terminal and the control unit of the water heater, if the control unit of the water heater is not powered on or fails, only the remote control terminal is working, which will cause the remote control terminal to continuously apply for communication connection, resulting in Larger power consumption.

The remote control terminal provided by the present invention has a communication link judging function. When the number of communication times exceeds the set number of times and the communication connection has not been established, it is determined that the communication link is abnormal, and the remote control terminal is stopped from applying for communication with the control unit of the water heater. Connection, remind the user to check the circuit through the alarm, effectively avoiding the function loss caused by unnecessary application for establishing communication operation.

The control method of the two-way radio frequency water heater provided by the present invention not only realizes the two-way communication, but also enables the real-time display of the running state of the water heater on the remote control terminal, thereby enabling the user to have a better experience. The power consumption of the terminal reaches the lowest level, which avoids the defect of frequent battery replacement by users.

The implementations in the above examples can be further combined or replaced, and the examples are only descriptions of preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, this Various changes and improvements made to the technical solutions of the present invention by those skilled in the art all belong to the protection scope of the present invention.

Claims (13)

1. A control method for a two-way radio frequency water heater, characterized in that: the water heater includes a water heater control unit and a remote control terminal that can communicate with the water heater control unit; The control method includes: establishing a communication connection between the remote control terminal and the control unit of the water heater through a radio frequency communication module, and performing data transmission at intervals of a set time after the communication is established; The user starts to set the working parameters of the water heater through the remote control terminal. If the user does not detect a continuous operation signal within the interval T2, it is determined that the user has completed the setting this time, and sends a message to the control unit of the water heater according to the working parameters currently set by the user. Control command; in the process of setting the working parameters of the water heater, the user does not send a command to the control unit of the water heater every time a parameter is set, but sends all commands to the control unit of the water heater at one time after judging that the user has completed the setting this time. control commands; After it is determined that the user has completed the setting this time, the control command will be automatically sent; or, the user will be prompted to confirm whether to send the current control command. The specified working parameters normally send the control command, and prompt the user to confirm before sending the control command; The remote control terminal includes a battery voltage detection unit, and the battery voltage detection unit is used to detect the voltage of the battery of the remote control terminal; when the voltage of the battery of the remote control terminal drops to a set voltage U1, the battery voltage detection unit Start to detect the voltage of the battery of the remote control terminal every time interval T3, and if the detected voltage is lower than U2, the user will be reminded that the battery power is insufficient, and the voltage U2<voltage U1. 2. The control method of the two-way radio frequency water heater according to claim 1, characterized in that: The remote control terminal includes a processor, and the radio frequency communication module acquires the current operating status of the water heater from the control unit of the water heater every interval of T1, and transmits it to the processor of the remote control terminal, and the processor refreshes the display on The operating parameters of the water heater on the display screen of the remote control terminal. 3. The control method of the two-way radio frequency water heater according to claim 2, characterized in that: said T1=30s. 4. The control method of the two-way radio frequency water heater according to claim 1, characterized in that: T2=5s. 5. The control method of two-way radio frequency water heater according to claim 1, characterized in that: if the remote control terminal does not receive a new operation command from the user within a certain period of time after sending the control command, it will control the radio frequency communication The module enters the sleep state. 6. The control method of the two-way radio frequency water heater according to claim 1, characterized in that: said T3=30s. 7. The control method of the two-way radio frequency water heater according to claim 1, characterized in that: The remote control terminal also includes a touch operation unit, the touch operation unit adopts the intermittent working state of sleep and wake-up, and the time period from sleep to wake-up of the touch control unit is set as T4, and the touch control unit The operating unit is woken up every time T4. 8. The control method of the two-way radio frequency water heater according to claim 7, characterized in that: said T4≤100ms. 9. The control method of the two-way radio frequency water heater according to claim 7, characterized in that: When the touch operation unit detects that the user has an operation signal, during the process of setting parameters by the user, the touch operation unit remains in the wake-up state, and does not receive the user’s operation signal within a certain period of time after it is determined that the user has completed the setting this time. A new operation signal enters into a dormant and wake-up intermittent working state. 10. The control method of the two-way radio frequency water heater according to claim 7, characterized in that: The remote control terminal also includes a backlight display unit, which is turned on when the user operates the touch operation unit, and is controlled to keep the backlight display unit off when there is no operation. 11. The control method of two-way radio frequency water heater according to claim 1, characterized in that: During the process of establishing a communication connection between the remote control terminal and the water heater control unit, if it is detected that the number of times the remote control terminal applies for establishing a communication connection with the water heater control unit exceeds the set number N0, and the communication has not been established, the remote control terminal is terminated. An application for establishing communication with the control unit of the water heater, and sending a prompt message. 12. The control method of the two-way radio frequency water heater according to claim 11, characterized in that: N0=300. 13. A water heater having the control method for a two-way radio frequency water heater according to any one of claims 1-12, wherein the water heater includes a water heater control unit, a radio frequency communication module, and a remote control terminal, and the remote control The terminal establishes a two-way communication connection through the radio frequency communication module.

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