Interactive radar sensing speed control method, control system and intelligent switch

Abstract

The present invention provides a method for controlling the speed of air-to-air interactive radar sensing, a control system, and an intelligent switch implementation method, which controls the on / off action of a switch by adopting a non-contact, air-to-air waving action at a certain speed. Specifically, the method detects whether first action information occurs within a preset range. Only when the first action information occurs, the reflected wave signal is subjected to low-noise amplification analysis, and an intermediate frequency signal containing speed change information is output to an MCU processing module for ADC processing to obtain waveform characteristics, and the target speed of the waving action and the target distance during the waving action are calculated. The control switch is triggered to enter different working modes according to the target speed of the waving action and the target distance during the waving action, and the state is maintained until the next trigger change, thereby satisfying the radar beam sensing of large-angle omnidirectional and non-dead-angle sensing of any action occurring in any direction, ensuring that when a target within the sensing range moves, the function of speed perception and judgment of the sensing distance of the moving target is realized, thereby improving the sensitivity of the sensing control and avoiding the waste of resources caused by misoperation and mistriggers.

Description

Technical Field

[0001] The present invention relates to the field of radar sensing control technology, and in particular to a medium-frequency signal processing control method, a control system and an intelligent switch for air-interactive radar sensing speed. Background Art

[0002] Traditional radar information systems are primarily based on hardware platforms like FPGAs and DSPs. The high cost of developing these products and the complex algorithms they employ make them unsuitable for general consumer lighting applications. RF sensing products based on these platforms also employ complex algorithms, requiring significant MCU computing power, making them particularly complex for consumer electronics applications. Traditional touch-sensitive mechanical switches, with their surface easily contaminated by bacteria from hands, can be easily transferred from one person to another, leading to cross-contamination. Cleaning staff must frequently scrub the surface with disinfectant to ensure a clean, hygienic surface.

[0003] With the development of technology, a large number of non-contact switches have emerged, such as infrared control switches. These use the blocking and reflection of infrared transmission waves to control the opening and closing of circuits. Ordinary electrical switches and consumer-grade control switches use fixed-frequency radar waves to detect and control waving movements and speeds within the sensing range of radar-sensing switches. Airborne radar RF speed sensing control circuits are also gradually gaining widespread application.

[0004] Non-contact radar RF speed sensing control circuits can effectively alleviate the problem of cross-contact infection caused by touch in public places such as hotels, offices, conference rooms, maker spaces, and incubators. They also greatly improve operational convenience and reduce the hardware cost of electrical switches. However, non-contact infrared sensing technology has inherent limitations. For example, the infrared sensor's sensitivity decreases, and the switch may even fail to operate, if the user's clothing color causes reflected waves to be absorbed. If the installation location is illuminated by high-brightness light sources such as sunlight, or if the weather is too cold or the user's clothing is too thick to detect human radiation, the infrared sensor's sensitivity may decrease. Summary of the Invention

[0005] In response to the above-mentioned practical use and technical problems of existing products, the present invention proposes a medium-frequency signal processing and control method for interactive radar sensing speed in the air, a control system and an intelligent switch, which are based on radar radio frequency technology and use non-contact waving actions in the air to control the on / off action of the switch.

[0006] Specifically, the present invention provides a method for controlling the speed of an air-to-air interactive radar, which mainly controls the activation of a corresponding switch by processing an intermediate frequency signal output containing speed change information of the sensing speed change. The method includes:

[0007] S1: Continuously transmit a preset radar radio frequency beam within a preset range and collect the corresponding radar reflected wave signal in real time;

[0008] S2: Perform low-noise amplification analysis on the reflected wave signal and output an intermediate frequency signal containing speed change information;

[0009] S3: performing ADC processing on the intermediate frequency signal to obtain a predefined waveform feature. If the waveform feature is in the initial waveform state, returning to S1; otherwise, calculating the target speed of the waving action and the target distance during the waving action based on the waveform feature;

[0010] S4: triggering a control switch to enter different working modes according to the target speed of the waving action and the target distance during the waving action; the waving action is an action at any angle in any direction of 360° set by the radar antenna;

[0011] Among them, the waving of the hand is an arbitrary action occurring in any direction, thereby overcoming, at least to a certain extent, the limitations brought about by the triggering of the switch by an action in a specific direction, thereby realizing non-contact and flexible control of the switch state of the load, and is not affected by the triggering action conditions, and has 360-degree omnidirectional sensing without dead angles within a specific range.

[0012] Before step S1, the method further includes: completing power-on and performing parameter initialization; the parameter initialization includes at least the intermediate frequency DC voltage V, the current working state, the waveform maximum value Max, the waveform minimum value Min, the signal fluctuation range value DELTA, the waveform time T, the sensing threshold TH and the moving target frequency H.

[0013] Preferably, the waveform characteristics in step S3 specifically include: the initial state of the waveform, the state from the peak to the trough, and the state from the trough to the peak.

[0014] Among them, in the step S3, if the waveform feature is the waveform initial state, specifically including: when the waveform feature is less than the intermediate frequency DC voltage V+ signal fluctuation range value DELTA, or greater than the intermediate frequency DC voltage V- signal fluctuation range value DELTA, then it is determined that the current waveform feature is the waveform initial state.

[0015] Preferably, the step S3 of calculating the moving target speed according to the waveform characteristics specifically includes:

[0016] When the waveform characteristic is greater than the intermediate frequency DC voltage V+signal fluctuation range value DELTA, it is determined that the waveform characteristic is from a peak to a trough state;

[0017] When the waveform characteristic is less than the intermediate frequency DC voltage V+signal fluctuation range value DELTA, it is determined that the waveform characteristic is from a trough to a peak state;

[0018] When the waveform characteristic is either from peak to trough or trough to peak, the waveform time T starts to count, and the waveform maximum value Max and the waveform minimum value Min are obtained. When the waveform returns to the initial state, the waveform time T is paused, and the moving speed of the moving target is calculated based on the waveform time T.

[0019] Preferably, calculating the moving target distance according to the waveform characteristics in step S3 specifically includes:

[0020] Calculate the waveform difference D according to the waveform maximum value Max and the waveform minimum value Min;

[0021] It is determined whether the waveform difference D is greater than the sensing threshold TH. If so, the sensing distance is within the preset range; otherwise, it is not within the preset range.

[0022] In the present invention, step S4 specifically includes: when the sensing distance is within a preset range and the waveform time T is less than one cycle time of the moving target frequency H, where one cycle time is equal to the inverse of the moving target frequency H, the level of the output port is flipped, the control switch is turned on or off according to the level, and the synchronous frequency switch of the indicator sensor light is triggered at the same time.

[0023] After each power-up and parameter initialization, the control switch defaults to the off position, and the sensor light is simultaneously triggered to the off position. This ensures that if a power outage or other abnormal circuit breaker occurs, the circuit will automatically return to the off position upon the next power-up, protecting the circuit while reducing resource waste.

[0024] As another preferred embodiment, the present invention further provides a control device for air-to-air interactive radar sensing, the control device comprising at least:

[0025] The sensing radar module is installed on the side facing the preset sensing area, continuously emitting a radar radio frequency beam within the preset range and collecting corresponding reflected wave signals in real time to sense whether first action information occurs within the preset range, where the first action information is frequency wave information generated by any action occurring in any direction;

[0026] A signal processing module, configured to perform low-noise amplification analysis on the reflected wave signal and output an intermediate frequency signal containing speed change information;

[0027] an MCU processing module, performing ADC processing on the intermediate frequency signal to obtain predefined waveform characteristics, and determining a target speed of the waving action and a target distance during the waving action based on the waveform characteristics;

[0028] And a switch control module is used to trigger different working modes according to the target speed of the waving action and the target distance during the waving action.

[0029] The control device further comprises: an indicator induction light, which is synchronously triggered to enter a corresponding working state in response to different working modes of the switch control module.

[0030] The signal processing module may optionally be provided with a first dip switch and a second dip switch; the first dip switch and the second dip switch are connected to the external circuit of the induction radar module, and control the signal data input to the corresponding serial port of the MCU through the change of different voltages to calculate the target speed of the waving action and the target distance during the waving action.

[0031] As another preferred embodiment, the present invention also provides an intelligent switch installed at any load end, used to control the power supply control of the load end. The intelligent switch is provided with a control device, and the control device is used to implement the preset circuit logic and control the opening or closing of the circuit each time the circuit is triggered by waving at a certain speed.

[0032] Thus, the present invention uses a contactless, airborne gesture to control the on / off action of a switch. In this radar sensing system, the hardware circuitry utilizes an ultra-miniaturized module design. The electromagnetic waves emitted by the onboard microstrip antenna are radiated into a predetermined spatial range. The Doppler frequency changes detected by the TX and RX signals are then demodulated by the RF chip, outputting an intermediate frequency (IF) signal containing speed information to the MCU for processing. After receiving the IF signal at a certain frequency, the MCU performs ADC conversion, digital integration, action thresholding, speed determination, and signal indicator processing.

[0033] Because the radar beam covers 360 degrees in all directions, the waving trigger angle can be any direction. The waving speed can be set in advance. Only waving actions within a certain speed range can be detected, received, and processed by the radar sensor switch.

[0034] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0035] The radar beam sensing direction of the present invention can be designed to have a large angle, 360-degree omnidirectional sensing without blind spots. Through threshold / sensing distance control, it is ensured that when the target within the control range moves, the waving action can be accurately detected.

[0036] The MCU of the present invention is an 8-bit single chip microcomputer, which realizes the functions of speed perception and judging the sensing distance of a moving target by judging the change of the waveform and calculating the duration of the waveform. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a flow chart of the control method of the air-to-air interactive radar sensing speed according to the present invention.

[0038] Figure 2 This is a flowchart of the waveform feature calculation described in the present invention.

[0039] Figure 3 This is the flowchart of triggering the air-to-air interactive radar sensing control instruction of the present invention.

[0040] Figure 4 This is a schematic diagram of the air-to-air interactive radar sensing control device of the present invention. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention. Example

[0042] like Figure 1 As shown, specifically, the present invention provides a method for controlling the speed of interactive radar sensing in the air, which monitors the sinusoidal wave changes in the speed and direction of the moving object within the sensing range of the radar wave, and realizes the recognition of a certain speed and the control of the sensing distance based on this physical characteristic.

[0043] The method for controlling the airborne interactive radar sensing speed of the present invention includes:

[0044] S1: Continuously transmit a preset radar radio frequency beam within a preset range and collect the corresponding radar reflected wave signal in real time;

[0045] The first action information is detected within the preset range. If so, the process goes to S2; otherwise, the process continues sensing. The first action information is a waving action. Only when a waving action is detected does the radar trigger the radar sensing device to perform sensing control detection, thereby avoiding false triggering.

[0046] S2: Perform low-noise amplification analysis on the reflected wave signal and output an intermediate frequency signal containing speed change information;

[0047] S3: performing ADC processing on the intermediate frequency signal to obtain a predefined waveform feature. If the waveform feature is in the initial waveform state, returning to S1; otherwise, calculating the target speed of the waving action and the target distance during the waving action based on the waveform feature;

[0048] S4: triggering a control switch to enter different working modes according to the target speed of the waving action and the target distance during the waving action; the waving action is an arbitrary angle action occurring in any direction of 360° set by the radar antenna.

[0049] The radar beam sensing direction of the present invention can be designed to have a large angle, 360-degree omnidirectional sensing without blind spots. Through threshold / sensing distance control, it is ensured that when the target within the control range moves, the waving action can be accurately detected.

[0050] Before step S1, the method further includes: completing power-on and performing parameter initialization; the parameter initialization includes at least the intermediate frequency DC voltage V, the current working state, the waveform maximum value Max, the waveform minimum value Min, the signal fluctuation range value DELTA, the waveform time T, the sensing threshold TH and the moving target frequency H.

[0051] Preferably, the waveform characteristics in step S3 specifically include: the initial state of the waveform, the state from the peak to the trough, and the state from the trough to the peak. In the present invention, when no waving action occurs, the system circuit defaults to the initial state, that is, the reflected wave signal detected by the radar sensing module is a weak frequency wave or no frequency wave, or an irregular interference frequency wave, etc., which are all regarded as the initial state of the waveform. Only when a waving action occurs, the radar sensing module generates a sine wave-like change by monitoring the moving speed and direction of the moving object, so that the waveform characteristics exist from the peak to the trough state and from the trough to the peak state.

[0052] In this embodiment, only when the signal from the peak to the trough state and from the trough to the peak state is detected, the calculation of the target speed of the waving action and the target distance during the waving action is started, thereby ensuring that the detected waving action is real and valid, and avoiding erroneous operations.

[0053] like Figure 2 As shown, analyzing the waveform characteristics and calculating the moving target speed based on the waveform characteristics are specifically as follows:

[0054] Determine whether the waveform feature is in the initial waveform state; specifically, when the waveform feature is less than the intermediate frequency DC voltage V+ signal fluctuation range value DELTA, or greater than the intermediate frequency DC voltage V- signal fluctuation range value DELTA, then determine that the current waveform feature is in the initial waveform state.

[0055] If the waveform feature is in the initial waveform state, it means that no waving action has occurred, and the next waveform feature is obtained; otherwise, if the waveform feature is in the state from peak to trough or from trough to peak, a waving action may have occurred, and further processing is required, that is, calculating the moving target speed based on the waveform feature.

[0056] In this embodiment, determining whether a waving action occurs is specifically as follows:

[0057] Preferably, when the waveform characteristic is greater than the intermediate frequency DC voltage V+signal fluctuation range value DELTA, it is determined that the waveform characteristic is from a peak to a trough state;

[0058] Preferably, when the waveform characteristic is smaller than the intermediate frequency DC voltage V+signal fluctuation range value DELTA, it is determined that the waveform characteristic is from a trough to a peak state;

[0059] When the waveform characteristic is either from a peak to a trough state or from a trough to a peak state, the waveform time T starts to count, and the waveform maximum value Max and the waveform minimum value Min are obtained. When the waveform returns to the initial state, the waveform time T is paused, and the moving speed of the moving target is calculated based on the waveform time T.

[0060] The moving speed of the moving target is calculated based on the waveform time T, and the moving speed of the target is obtained by presetting the range distance / waveform time T.

[0061] like Figure 3 As shown, the air-to-air interactive radar sensing control instruction of the present invention can trigger the corresponding instruction only when the sensing distance and sensing time conditions are met at the same time to achieve switch conversion, specifically:

[0062] Step 1: Confirm the moving target sensing distance, including:

[0063] Calculate the waveform difference D according to the waveform maximum value Max and the waveform minimum value Min;

[0064] It is determined whether the waveform difference D is greater than a sensing threshold TH. If so, the sensing distance is within a preset range; otherwise, it is not within the preset range. The sensing threshold TH is set according to different device model requirements and is not limited thereto.

[0065] Step 2: Confirm whether the moving target sensing speed, that is, the waveform time, meets the preset conditions, including:

[0066] Determine whether the waveform time T is less than the moving target frequency period H. If it is, it is determined that the preset sensing speed is met. Since the sensing distance is a preset range and can be measured, the present invention only needs to confirm the cycle time of the waveform to obtain the speed of the moving target. In order to avoid false triggering or recognition errors, it is only used as a sensing action when a certain movement speed is met. For example, the preset sensing action is a waving action. When waving in the predicted area, it meets 0.08s or 1s, which can be set according to actual needs. When a person passes by, the speed may be greater than the preset value, then it is determined to be a false trigger action and the switch will not be triggered. Only when there is a conscious or intentional waving operation and the waveform time T obtained by sensing meets the preset value, it is determined to be a true trigger action.

[0067] When the sensing distance falls within the preset range and the waveform time T is less than the moving target frequency H, the output port's level flips. That is, if the current state is on, a low level is output to switch the switch to the off state; conversely, if the current state is off, a high level is output to switch the switch to the on state. The control switch is turned on or off according to the level, and the control switch indicator light is triggered to switch at the same frequency. That is, when the output is high, the switch indicator light is on; when the output is low, the switch indicator light is off, which is used to indicate the current working status and can also be used to detect whether there is a switch fault.

[0068] During normal use, abnormal power outages often occur. The present invention further protects the restart circuit after a power outage by setting the control switch to the off state by default after each power-on and parameter initialization, and at the same time triggering the indicator induction light to the off state at the same frequency. This ensures that every time the circuit is abnormally disconnected due to power outage or other reasons, the control switch automatically switches to the off state when the circuit enters the on state again when the power is turned on again, thereby protecting the circuit and reducing resource waste. For example, when the power is cut off, the control switch is in the on state. After the mains power is cut off, the control switch also enters the off state. After the mains power is turned on again, the control switch remains in the off state. Wait until a waving action is sensed, and then it re-enters the on state.

[0069] This invention, based on radar radio frequency technology, uses a contactless, airborne gesture to control the on / off operation of a switch and adjust color temperature. The PH98D1515LP is an X-band radar sensing control system operating at 9.85 GHz. The hardware circuitry of this radar sensing system utilizes an ultra-miniaturized module design. The onboard microstrip antenna transmits electromagnetic waves within a predetermined spatial range. The Doppler frequency changes detected by the TX and RX signals are then demodulated by the RF chip, outputting an intermediate frequency (IF) signal containing speed information to the MCU for processing. After receiving the IF signal at a specific frequency, the MCU uses an ADC to convert it into digital integration, establish an action threshold, determine speed, and process the signal light. The algorithm transforms the IF signal waveform, extracts the specific speed recognition function and the trigger sensing distance of the moving target within a certain range, and then performs comprehensive judgment and conditional logic, thereby implementing a control method that can sense and determine specific moving speeds and logical functions. Example

[0070] As another preferred embodiment, Figure 4 As shown, the present invention also provides a control device for air-to-air interactive radar sensing, the control device at least comprising:

[0071] The sensing radar module is installed on the side facing the preset sensing area, continuously emitting a pre-radar radio frequency beam within the preset range, and collecting corresponding reflected wave signals in real time to sense whether first action information occurs within the preset range, where the first action information is frequency wave information generated by any action occurring in any direction;

[0072] A signal processing module performs low-noise amplification analysis on the reflected wave signal and outputs an intermediate frequency signal containing speed change information;

[0073] an MCU processing module, performing ADC processing on the intermediate frequency signal to obtain predefined waveform characteristics, and determining a target speed of the waving action and a target distance during the waving action based on the waveform characteristics;

[0074] And a switch control module is used to trigger different working modes according to the target speed of the waving action and the target distance during the waving action.

[0075] Preferably, the MCU processing module adopts an 8-bit single-chip microcomputer, which realizes the functions of speed perception and judging the sensing distance of moving targets by judging the changes in the waveform and calculating the duration of the waveform.

[0076] The control device further comprises: an indicator induction light, which responds to different working modes of the switch control module and is triggered to enter a corresponding working state.

[0077] The signal processing module may optionally be provided with a first dip switch and a second dip switch; the first dip switch and the second dip switch are connected to the external circuit of the induction radar module, and control the signal data input to the corresponding serial port of the MCU through the change of different voltages to calculate the target speed of the waving action and the target distance during the waving action. Example

[0078] As another preferred embodiment, the present invention also provides an intelligent switch installed at any load end, used to control the power supply control of the load end. The intelligent switch is provided with a control device, and the control device is used to implement the preset circuit logic and control the opening or closing of the circuit each time the circuit is triggered by waving at a certain speed.

[0079] Among them, the load end can be applied to any public places, hotels, offices, conference rooms, maker spaces, incubators and other public office places such as smart lights, smart homes and other electrical appliance switch control ends, but is not limited to these.

[0080] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely illustrative and are not intended to limit the scope of the present invention. Various changes and modifications may be made therein by those skilled in the art without departing from the scope and spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as claimed in the appended claims.

[0081] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0082] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units described is merely a logical functional division. In actual implementation, other division methods may be used. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not implemented.

[0083] The various component embodiments of the present invention can be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It will be appreciated by those skilled in the art that a microprocessor or digital signal processor (DSP) can be used in practice to implement some or all of the functions of some modules according to embodiments of the present invention. The present invention can also be implemented as a device program (e.g., a computer program and a computer program product) for executing a part or all of the methods described herein. Such a program implementing the present invention can be stored on a computer-readable medium, or can have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0084] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0085] Although the present invention is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and variations based on the above content. Therefore, all such substitutions, improvements and variations are included in the spirit and scope of the appended claims.

Claims

1. A method for controlling the speed of air-to-air interactive radar sensing, used in gesture sensing speed control of intelligent switch circuits, characterized in that: The control method includes: S1: Continuously transmit a preset radar radio frequency beam within a preset range and collect the corresponding radar reflected wave signal in real time; S2: Perform low-noise amplification analysis on the reflected wave signal and output an intermediate frequency signal containing speed change information; S3: Performing ADC processing on the intermediate frequency signal to obtain a predefined waveform feature. If the waveform feature is in the initial waveform state, returning to S1; otherwise, calculating the target speed of the waving action and the target distance during the waving action based on the waveform feature. Calculating the target speed based on the waveform feature specifically includes: When the waveform characteristic is greater than the intermediate frequency DC voltage V+signal fluctuation range value DELTA, it is determined that the waveform characteristic is from a peak to a trough state; When the waveform characteristic is less than the intermediate frequency DC voltage V+signal fluctuation range value DELTA, it is determined that the waveform characteristic is from a trough to a peak state; When the waveform characteristic changes from a peak to a trough state or from a trough to a peak state, the waveform time T starts to count, and the waveform maximum value Max and the waveform minimum value Min are obtained. When the waveform returns to the initial state, the waveform time T is paused, and the moving speed of the moving target is calculated based on the waveform time T. The waveform feature is used to calculate the moving target distance, specifically including: Calculate the waveform difference D according to the waveform maximum value Max and the waveform minimum value Min; Determine whether the waveform difference D is greater than the sensing threshold TH. If so, the sensing distance is within the preset range; otherwise, it does not meet the preset range. S4: triggering a control switch to enter different working modes according to the target speed of the waving action and the target distance during the waving action; the waving action is an arbitrary angle action occurring in any direction of 360° set by the radar antenna, including: When the sensing distance is within the preset range and the waveform time T is less than the inverse value of the moving target frequency H, the control level of the output port is flipped, and the control switch is turned on or off according to the control level, and the indicator sensor light is triggered to turn on or off synchronously.

2. The method for controlling the airborne interactive radar sensing speed according to claim 1, characterized in that: Before step S1, the process also includes: completing the initial power-on and initializing the system parameters; the parameter initialization includes at least the intermediate frequency DC Voltage V, current working status, waveform maximum value Max, waveform minimum value Min, waveform time T, intermediate frequency signal fluctuation range value DELTA, sensing threshold TH and moving target frequency H.

3. The method for controlling the airborne interactive radar sensing speed according to claim 2, characterized in that: In the step S3, if the waveform feature is in the initial waveform state, it specifically includes: when the waveform feature is less than the intermediate frequency DC voltage V+ signal fluctuation range value DELTA, or greater than the intermediate frequency DC voltage V- signal fluctuation range value DELTA, then it is determined that the current waveform feature is in the initial waveform state.

4. The method for controlling the airborne interactive radar sensing speed according to claim 3, characterized in that: Also includes: After each power-on and parameter initialization, the control switch is switched to the circuit off action by default, and the trigger indicator sensor light is synchronously switched to the off state.

5. The control device of the method for controlling the air-to-air interactive radar sensing speed according to any one of claims 1 to 4, characterized in that: The control device at least includes: The sensing radar module has a sensing antenna installed facing a preset sensing area. The sensing antenna continuously transmits a preset radar radio frequency wave within a preset range and collects corresponding reflected wave signals in real time to sense whether first action information occurs within the preset range. The first action information is radar radio frequency wave information generated by any action occurring in any direction. A signal processing module, configured to perform low-noise amplification analysis on the reflected wave signal and output an intermediate frequency signal containing speed change information; an MCU processing module, performing ADC processing on the intermediate frequency signal to obtain waveform characteristics, and determining a target speed of the waving action and a target distance during the waving action based on the waveform characteristics; And a switch circuit control module is used to trigger different working modes according to the target speed of the waving action and the target distance during the waving action.

6. The control device according to claim 5, characterized in that The control device further comprises: an indicator induction lamp, which is synchronously triggered to enter a corresponding working state in response to different working modes of the switch circuit control module.

7. An intelligent switch, characterized in that: Installed at any load end, used to control the power supply control of the load end, the smart switch is provided with a control device, and the control device is used to implement the control method of the air-to-air interactive radar sensing speed as described in any one of claims 1-4, and to realize the preset circuit logic. Each time the hand is waved at a certain speed to trigger, the circuit is controlled to open or close.

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