Automatic door triggering method, device and automatic door

Abstract

The application discloses an automatic door triggering method and device and an automatic door. A microwave module emits a microwave signal to a target space at a first power, receives a reflected echo signal, processes the reflected echo signal to obtain a first trigger signal of the automatic door, calculates an amplitude and a frequency of the first trigger signal, sets an amplitude and a frequency range of an automatic door trigger threshold, compares the amplitude of the first trigger signal with the amplitude of the preset trigger threshold, switches the microwave module to a second power according to a preset proportion satisfied by a comparison result, and the second power is greater than the first power. The idle time power consumption of the microwave module can be effectively reduced, the accuracy and sensitivity of the microwave module during normal operation are ensured, and the service life of the microwave module is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to, but are not limited to, the field of automatic door technology, and particularly to the triggering method of automatic doors. Background Technology

[0002] Automatic doors, as convenient and intelligent office devices, are widely installed in various locations. Because people constantly enter and exit these doors, and the distribution of peak entry and exit times for each location is unpredictable, current automatic door microwave sensors need to remain in high-power standby mode 24 hours a day to ensure timely opening. However, if the microwave sensor operates at high power for extended periods, its transmission power decreases, and its sensitivity diminishes. This results in the automatic door failing to open promptly when people randomly enter or exit, impacting user experience and increasing after-sales maintenance costs. Therefore, how to ensure that the microwave sensor of an automatic door operates at an appropriate power level during suitable times, and how to reduce the time the microwave sensor remains in high-power standby mode, is a problem that needs to be solved in the relevant technical field. Summary of the Invention

[0003] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0004] This invention provides an automatic door triggering method, device, and automatic door, which can effectively reduce the idle power consumption of microwave modules, while ensuring the accuracy and sensitivity of microwave modules during normal operation and improving the lifespan of microwave modules.

[0005] In a first aspect, embodiments of the present invention provide an automatic door triggering method, the method comprising: a microwave module transmitting a microwave signal to a target space at a first power, receiving a reflected echo signal, processing the reflected echo signal to obtain a first trigger signal for the automatic door, and calculating the amplitude and frequency of the first trigger signal; pre-setting an amplitude and frequency range for an automatic door triggering threshold, comparing the amplitude and frequency of the first trigger signal with the pre-set triggering threshold, and switching the microwave module to a second power, wherein the second power is greater than the first power, according to a pre-set ratio satisfied by the comparison result. As can be seen from the above method, the first power state is a low-power state, and the second power state is a high-power state. The microwave module can initially enter the first power state, i.e., a low-power standby state. When the microwave module detects a target entering the target space, it processes the reflected echo signal emitted and received by the microwave module to obtain the first trigger signal of the automatic door, calculating the amplitude and frequency of the first trigger signal. Since there is a relatively stable calculation relationship between the intensity of the detected trigger signal and the position of the detected target under different power levels, the maximum sensing distance that the microwave module can detect can be determined after presetting the amplitude and frequency range of the automatic door trigger threshold and the operating power value of the microwave module. The amplitude and frequency of the first trigger signal are compared with the preset trigger threshold. When the first trigger signal... When the amplitude and frequency of the signal reach a certain intensity, it can be confirmed that the target may be about to pass through the automatic door. However, due to the inaccurate detection accuracy of the microwave module in the low-power state, the accurate position of the target cannot be calculated based on the amplitude and frequency of the first trigger signal. The automatic door will only open suddenly when the target is close enough to the automatic door, that is, when the amplitude and frequency of the first trigger signal are large enough, which affects the user experience. Therefore, the microwave module cannot calculate the accurate position of the target in the low-power state. At this time, the microwave module switches from the first power state to the second power state, which is a high-power state. It can accurately detect and calculate the position of the target. When the distance of the target reaches the trigger distance of the microwave module in the high-power state, that is, when the strength of the second trigger signal meets the preset trigger threshold, the automatic door can be opened. The above technical solution can effectively enable the microwave module to be in low-power mode when the automatic door is in standby mode and no one is entering or exiting. When a target enters the detection range, the microwave module switches to high-power mode for accurate detection. This allows the automatic door to detect the accurate distance of the target when it enters or exits, enabling timely door opening. This reduces the standby time of the microwave module in high-power mode and ensures that the automatic door can detect and open the door in a timely manner when a target approaches it.

[0006] In one specific implementation scheme, a coarse detection frequency range is set, which is a frequency range greater than or equal to a preset trigger threshold. The frequency of the first trigger signal is compared with the coarse detection frequency range. When the frequency of the first trigger signal is within the coarse detection frequency range, the amplitude of the first trigger signal is compared with the amplitude of the preset trigger threshold. When the ratio of the amplitude of the first trigger signal to the amplitude of the preset trigger threshold satisfies a preset ratio, the microwave module is switched to the second power. Here, the amplitude and frequency range of the first trigger signal are used as judgment conditions simultaneously, which can more accurately filter out non-targets, reduce the frequency of the microwave module switching from the first power to the second power, and improve the lifespan of the microwave module. In another specific implementation scheme, a trigger distance for an automatic door is set, and the automatic door is triggered to open when a detected target enters the trigger distance. A detection distance for the automatic door is set, and the microwave module switches from the first power to the second power when a detected target enters the detection distance. The detection distance is greater than or equal to the trigger distance. The first power and the second power are calculated based on the trigger distance and the detection distance. As mentioned above, the microwave module has a relatively stable calculation relationship between the intensity of the detected trigger signal and the position of the detected target under different power levels. Therefore, after setting the detection distance of the automatic door, the amplitude and frequency of the first trigger signal when the microwave module switches from the first power to the second power are determined according to the calculation relationship. After setting the trigger distance of the automatic door, the amplitude and frequency of the preset trigger signal are determined according to the calculation relationship. At the same time, when the amplitude and frequency of the second trigger signal are equal to the preset trigger threshold, the detected target has reached the trigger distance and the automatic door is opened.

[0007] In a specific feasible implementation, the microwave module transmits a microwave signal into the target space at a second power, receives the reflected echo signal, processes the reflected echo signal to obtain the second trigger signal of the automatic door, and calculates the amplitude and frequency of the second trigger signal. The amplitude and frequency of the second trigger signal are compared with a preset trigger threshold; the operating power of the microwave module is switched according to the comparison result. The amplitude and frequency of the second trigger signal are the intensity of the reflected echo signal detected by the microwave module under normal power conditions. When the amplitude and frequency of the second trigger signal change with the distance between the target and the microwave module, there are various possible states. Therefore, different conditions can be set to switch the microwave module to different operating power states based on the changes in the amplitude and frequency of the second trigger signal.

[0008] In another specific implementation scheme, within a set triggering period, when the frequency of the second trigger signal is within the frequency range of a preset triggering threshold and the amplitude of the second trigger signal is greater than or equal to the amplitude of the preset triggering threshold, a trigger command is issued to control the automatic door to open; within a set triggering period, when the frequency of the second trigger signal is within the frequency range of the preset triggering threshold and the amplitude of the second trigger signal is less than the amplitude of the preset triggering threshold, the microwave module switches from the second power to the first power; within a set triggering period, when the frequency of the second trigger signal is outside the frequency range of the preset triggering threshold, the microwave module switches from the second power to the first power. Based on the above conditions, the microwave module can be switched to high-power mode as much as possible when a target enters the detection range. This allows the microwave module to accurately detect and calculate the distance to the target when it enters the trigger range. When the frequency of the second trigger signal is within the preset trigger threshold range and the amplitude of the second trigger signal is greater than or equal to the preset trigger threshold amplitude, a trigger command is issued to control the automatic door to open. When the frequency of the second trigger signal is within the preset trigger threshold range and the amplitude of the second trigger signal is less than the preset trigger threshold amplitude, i.e., the target is moving away... To reduce the trigger distance, the microwave module does not need to maintain a high-power state; that is, the microwave module switches from the second power to the first power. When the frequency of the second trigger signal is outside the preset frequency range, the microwave module switches from the second power to the first power. The set trigger period is the waiting time of the microwave module to avoid the microwave module switching back and forth between the first power and the second power at a high frequency. For example, if the set trigger period is 30 seconds, in some scenarios, there may be periods when the target under test enters and exits at high frequency, or even every 30 seconds. Therefore, the microwave module can determine whether to switch between the first power and the second power state according to the set trigger period.

[0009] In another specific implementation scheme, after issuing a trigger command to control the automatic door to open, the microwave module continues to maintain the second power within the set trigger cycle. When the frequency and amplitude of the second trigger signal do not meet the preset trigger threshold, the microwave module switches from the second power to the first power. When the target to be tested enters the trigger distance for the first time, the microwave module still maintains the second power state. After waiting for the set trigger cycle to complete, if the target to be tested continues to enter or exit the automatic door, the microwave module continues to maintain the second power state. After waiting for the set trigger cycle to complete, if no target to be tested enters or exits the automatic door, the microwave module switches from the second power to the first power, and then continues the loop of the aforementioned judgment logic.

[0010] In another specific implementation, the indicator device issues a prompt signal when the microwave module switches from the second power to the first power or vice versa. This prompt signal alerts the target under test or maintenance personnel to visually assess the automatic door's operating status, effectively aiding in device maintenance and functional understanding.

[0011] In another specific implementation scheme, the indication signal includes at least one of sound, light, vibration, and digital display, and the indication device can emit at least one of these indication signals. If a sound device is used, different prompting sounds can be emitted according to different set frequencies, loudnesses, and durations. If a light device is used, different prompting lights can be displayed according to different set colors, brightnesses, and durations. If a vibration device is used, different prompting vibrations can be emitted according to different set frequencies and durations. If a digital display is used, different prompting information can be displayed according to different set numbers, patterns, and interfaces, thus enabling different prompting methods for different scenarios.

[0012] In another specific implementation scheme, the microwave module is powered by a first power source when operating at a first power level; the microwave module is powered by a second power source when operating at a second power level; or the microwave module is powered by both the first and second power sources simultaneously when operating at a second power level. Multiple power supply methods can effectively improve the stability of the microwave module's operating state.

[0013] Secondly, embodiments of the present invention provide an automatic door triggering device, comprising: a microwave module for transmitting microwave signals and receiving reflected echo signals; a signal processing module for processing the reflected echo signals to obtain a real-time trigger signal for the automatic door; a calculation module for comparing the amplitude and frequency of the real-time trigger signal with a preset trigger threshold to obtain a ratio, switching the operating power of the microwave module according to the ratio; and a prompting module for indicating the switching of the operating power of the microwave module. This effectively reduces the idle power consumption of the microwave module while ensuring the accuracy and sensitivity of the microwave module during normal operation, thus extending the lifespan of the microwave module.

[0014] Thirdly, embodiments of the present invention provide an automatic door, including a door body, a motor, and a microwave sensing device, wherein the microwave sensing device performs the method steps described in the first aspect above. This effectively reduces the idle power consumption of the microwave module while ensuring the accuracy and sensitivity of the microwave module during normal operation, thereby extending the lifespan of the microwave module.

[0015] This invention includes: a microwave module transmitting a microwave signal to a target space at a first power, receiving a reflected echo signal, processing the reflected echo signal to obtain a first trigger signal for an automatic door, calculating the amplitude and frequency of the first trigger signal, setting a range of amplitude and frequency for an automatic door trigger threshold, comparing the amplitude and frequency of the first trigger signal with the preset trigger threshold, and switching the microwave module to a second power based on a preset ratio satisfied by the comparison result. The second power is greater than the first power, which can effectively reduce the idle power consumption of the microwave module, while ensuring the accuracy and sensitivity of the microwave module during normal operation and improving the lifespan of the microwave module.

[0016] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

[0018] Figure 1 This is a main flowchart of an automatic door triggering method provided in one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram illustrating the relationship between the operating power, detection distance, and trigger signal amplitude of a microwave module according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of an automatic door triggering device provided in one embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of an automatic door provided in one embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] It should be understood that in the description of the embodiments of the present invention, at least one (or one item) means one and more, including one, greater than, less than, and exceeding are understood to exclude the number itself, and above, below, and within are understood to include the number itself. If the terms "first," "second," etc. are used in the description, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0024] Automatic doors, as convenient and intelligent office devices, are widely installed in various places. Because people come and go through automatic doors at any time, and the distribution of high-frequency entry and exit times for automatic doors in each place is uncertain, the current microwave sensing devices for automatic doors need to be kept in a high-power standby state 24 hours a day to ensure that the automatic doors can respond and open in a timely manner. However, if the microwave sensing device operates at a high power state for a long time, the transmission power of the microwave sensing device will decrease, and its sensitivity will decrease. This makes it impossible for the automatic door to respond and open in a timely manner when people enter and exit randomly, affecting the user experience and increasing the cost of after-sales maintenance.

[0025] To address the aforementioned issues, this invention provides an automatic door triggering method that effectively reduces the idle power consumption of the microwave module while ensuring the accuracy and sensitivity of the microwave module during normal operation, thereby extending the lifespan of the microwave module.

[0026] In a first aspect, embodiments of the present invention provide an automatic door triggering method, the method comprising: a microwave module transmitting a microwave signal to a target space at a first power, receiving a reflected echo signal, processing the reflected echo signal to obtain a first trigger signal for the automatic door, and calculating the amplitude and frequency of the first trigger signal; pre-setting an amplitude and frequency range for an automatic door triggering threshold, comparing the amplitude and frequency of the first trigger signal with the pre-set triggering threshold, and switching the microwave module to a second power, wherein the second power is greater than the first power, according to a pre-set ratio satisfied by the comparison result.

[0027] like Figure 1 As shown, Figure 1 This is a flowchart of an automatic door triggering method according to an embodiment of the present invention. The automatic door triggering method includes, but is not limited to, the following steps:

[0028] Step S100: The microwave module transmits a microwave signal to the target space at a first power, receives the reflected echo signal, processes the reflected echo signal to obtain the first trigger signal of the automatic door, and calculates the amplitude and frequency of the first trigger signal.

[0029] Step S200: Preset the amplitude and frequency range of the automatic door trigger threshold;

[0030] Step S300: Compare the amplitude and frequency of the first trigger signal with a preset trigger threshold.

[0031] In step S400, based on the preset ratio satisfied by the comparison result, the microwave module is switched to the second power, which is greater than the first power.

[0032] As can be seen from the above method, the first power state is a low-power state, and the second power state is a high-power state. The microwave module can initially enter the first power state, i.e., a low-power standby state. When the microwave module detects a target entering the target space, it processes the reflected echo signal emitted and received by the microwave module to obtain the first trigger signal of the automatic door, calculating the amplitude and frequency of the first trigger signal. Since there is a relatively stable calculation relationship between the intensity of the detected trigger signal and the position of the detected target under different power levels, the maximum sensing distance that the microwave module can detect can be determined after presetting the amplitude and frequency range of the automatic door trigger threshold and the operating power value of the microwave module. The amplitude and frequency of the first trigger signal are compared with the preset trigger threshold. When the first trigger signal... When the amplitude and frequency of the signal reach a certain intensity, it can be confirmed that the target may be about to pass through the automatic door. However, due to the inaccurate detection accuracy of the microwave module in the low-power state, the accurate position of the target cannot be calculated based on the amplitude and frequency of the first trigger signal. The automatic door will only open suddenly when the target is close enough to the automatic door, that is, when the amplitude and frequency of the first trigger signal are large enough, which affects the user experience. Therefore, the microwave module cannot calculate the accurate position of the target in the low-power state. At this time, the microwave module switches from the first power state to the second power state, which is a high-power state. It can accurately detect and calculate the position of the target. When the distance of the target reaches the trigger distance of the microwave module in the high-power state, that is, when the strength of the second trigger signal meets the preset trigger threshold, the automatic door can be opened. The above technical solution can effectively enable the microwave module to be in low-power mode when the automatic door is in standby mode and no one is entering or exiting. When a target enters the detection range, the microwave module switches to high-power mode for accurate detection. This allows the automatic door to detect the accurate distance of the target when it enters or exits, enabling timely door opening. This reduces the standby time of the microwave module in high-power mode and ensures that the automatic door can detect and open the door in a timely manner when a target approaches it.

[0033] In another specific implementation scheme, a coarse detection frequency range is set, which is a frequency range greater than or equal to a preset trigger threshold; the frequency of the first trigger signal is compared with the coarse detection frequency range; when the frequency of the first trigger signal is within the coarse detection frequency range, the amplitude of the first trigger signal is compared with the amplitude of the preset trigger threshold; when the ratio of the amplitude of the first trigger signal to the amplitude of the preset trigger threshold satisfies a preset ratio, the microwave module is switched to the second power. Specifically, in this technical solution, the frequency range of the preset trigger threshold is 20-120Hz. The coarse detection frequency range is set to be greater than or equal to the preset trigger threshold, i.e., the coarse detection frequency range is 20-120Hz, equal to the frequency range of the preset trigger threshold; or the coarse detection frequency range is 10-120Hz, or 20-130Hz, or 10-130Hz, or 10-150Hz. All of these coarse detection frequency ranges are greater than or equal to the 20-120Hz range of the preset trigger threshold. When the frequency of the first trigger signal obtained by the microwave module is within the coarse detection frequency range, the amplitude of the first trigger signal is compared with the amplitude of the preset trigger threshold. When a preset ratio is met, the microwave module is switched to the second power. This technical solution uses both the amplitude and frequency range of the first trigger signal as judgment conditions, which can more accurately filter signals from non-target signals, reduce the frequency of the microwave module switching from the first power to the second power, and improve the lifespan of the microwave module.

[0034] In a specific feasible implementation, the trigger distance of the automatic door is set, and the automatic door is triggered to open when the detected target enters the trigger distance; the detection distance of the automatic door is set, and the microwave module switches from a first power to a second power when the detected target enters the detection distance; the detection distance is greater than or equal to the trigger distance; the first power and the second power are calculated based on the trigger distance and the detection distance.

[0035] like Figure 2 As shown, Figure 2 This is a schematic diagram illustrating the relationship between the operating power, detection distance, and trigger signal of a microwave module according to an embodiment of the present invention. It should be noted that... Figure 2 This is a mathematical relationship diagram illustrating the relationship between the microwave module's operating power, detection distance, and trigger signal. It is not a rigorous actual test data curve, and the actual curve waveform may deviate depending on the different microwave modules.

[0036] It can be seen from the foregoing content that under different powers of the microwave module, there is a relatively stable calculation relationship between the detected trigger signal intensity and the position of the detection target. Therefore, after setting the detection distance of the automatic door, the amplitude and frequency of the first trigger signal when the microwave module switches from the first power to the second power are determined according to the calculation relationship; after setting the trigger distance of the automatic door, the amplitude and frequency of the preset trigger signal are determined according to the calculation relationship. Meanwhile, when the amplitude and frequency of the second trigger signal equal the preset trigger threshold, it indicates that the detection target has reached the trigger distance, and the automatic door is opened. In Figure 2 , the microwave module operates at the first power, transmits a microwave signal to the target space with the first power, receives the reflected echo signal, and processes the reflected echo signal to obtain the first trigger signal of the automatic door, then calculates the amplitude and frequency of the first trigger signal. When the distance between the target to be measured and the microwave module approaches the detection distance, the amplitude of the first trigger signal is less than V1. When the target to be measured continues to approach the microwave module and the distance between the target to be measured and the microwave module reaches the detection distance, the amplitude of the first trigger signal obtained by the microwave module at the first power reaches V1, that is, the preset ratio of V1 / V3 is satisfied, and the microwave module is switched from the first power to the second power for operation. When the distance between the target to be measured and the microwave module remains unchanged, increasing the power of the microwave module will increase the amplitude of the second trigger signal obtained. At this time, the amplitude of the second trigger signal obtained by the microwave module at the second power reaches V2, where V1<V2<V3, and V3 is the preset trigger amplitude. The amplitude of the second trigger signal is still insufficient to trigger the opening of the automatic door, because the distance between the target to be measured and the microwave module has not yet reached the trigger distance. Therefore, the target to be measured continues to move and approach the microwave module. When the distance between the target to be measured and the microwave module reaches the trigger distance, the amplitude of the second trigger signal obtained by the microwave module at the second power reaches V3, and the signal amplitude satisfies the trigger threshold of the automatic door, and the automatic door is opened at this time. When a user adjusts the sensitivity of the microwave module, that is, adjusts the preset trigger threshold, the trigger distance of the automatic door will correspondingly become longer under the condition that the transmission power of the microwave module remains unchanged.

[0037] In a specific implementation, the microwave module transmits a microwave signal to the target space with the second power, receives the reflected echo signal, processes the reflected echo signal to obtain the second trigger signal of the automatic door, and calculates the amplitude and frequency of the second trigger signal; the amplitude and frequency of the second trigger signal are compared with a preset trigger threshold; and the operating power of the microwave module is switched according to the comparison result. The amplitude and frequency of the second trigger signal are the intensity of the reflected echo signal detected by the microwave module in the normal power state. When the amplitude and frequency of the second trigger signal change with the distance between the target to be measured and the microwave module, there are multiple situations. Therefore, under different conditions, the state switching of different operating powers of the microwave module can be performed according to the changes of the amplitude and frequency of the second trigger signal.

[0038] In another specific implementation scheme, within a set triggering period, when the frequency of the second trigger signal is within the frequency range of a preset triggering threshold and the amplitude of the second trigger signal is greater than or equal to the amplitude of the preset triggering threshold, a trigger command is issued to control the automatic door to open; within a set triggering period, when the frequency of the second trigger signal is within the frequency range of the preset triggering threshold and the amplitude of the second trigger signal is less than the amplitude of the preset triggering threshold, the microwave module switches from the second power to the first power; within a set triggering period, when the frequency of the second trigger signal is outside the frequency range of the preset triggering threshold, the microwave module switches from the second power to the first power. Based on the above conditions, the microwave module can be switched to high-power mode as much as possible when a target enters the detection range. This allows the microwave module to accurately detect and calculate the distance to the target when it enters the trigger range. When the frequency of the second trigger signal is within the preset trigger threshold range and the amplitude of the second trigger signal is greater than or equal to the preset trigger threshold amplitude, a trigger command is issued to control the automatic door to open. When the frequency of the second trigger signal is within the preset trigger threshold range and the amplitude of the second trigger signal is less than the preset trigger threshold amplitude, i.e., the target has moved away from the trigger range... In terms of distance, the microwave module does not need to maintain a high-power state; that is, the microwave module switches from the second power to the first power. When the frequency of the second trigger signal is outside the frequency range of the preset trigger threshold, the microwave module switches from the second power to the first power. The set trigger period is the waiting time of the microwave module to avoid the microwave module switching back and forth between the first power and the second power at a high frequency. For example, the set trigger period is 30 seconds. In some scenarios, there may be periods when the target under test enters and exits at high frequency, or even every 30 seconds. Therefore, the microwave module can determine whether to switch between the first power and the second power state according to the set trigger period.

[0039] In another specific implementation scheme, after issuing a trigger command to control the automatic door to open, the microwave module continues to maintain the second power within the set trigger cycle. When the frequency and amplitude of the second trigger signal do not meet the preset trigger threshold, the microwave module switches from the second power to the first power. When the target to be tested enters the trigger distance for the first time, the microwave module still maintains the second power state. After waiting for the set trigger cycle to complete, if the target to be tested continues to enter or exit the automatic door, the microwave module continues to maintain the second power state. After waiting for the set trigger cycle to complete, if no target to be tested enters or exits the automatic door, the microwave module switches from the second power to the first power, and then continues the loop of the aforementioned judgment logic.

[0040] In another specific implementation, the indicator device issues a prompt signal when the microwave module switches from the second power to the first power or vice versa. This prompt signal alerts the target under test or maintenance personnel to visually assess the automatic door's operating status, effectively aiding in device maintenance and functional understanding.

[0041] In another specific feasible implementation, the indication signal includes at least one of sound, light, vibration, and digital display, and the indication device can emit at least one of these indication signals. If a sound device is used, different prompting sounds can be emitted according to different set frequencies, loudnesses, and durations. If a light device is used, different prompting lights can be displayed according to different set colors, brightnesses, and durations. If a vibration device is used, different prompting vibrations can be emitted according to different set frequencies and durations. If a digital display is used, different prompting information can be displayed according to different set numbers, patterns, and interfaces, enabling different prompting methods for different scenarios. This design also makes the differences between this technical solution and existing technical solutions readily observable to users, enhancing the market competitiveness of related products.

[0042] In another specific implementation scheme, the microwave module is powered by a first power supply when operating at the first power level; the microwave module is powered by a second power supply when operating at the second power level; or the microwave module is powered by both the first and second power supplies simultaneously when operating at the second power level. Multiple power supply methods can effectively improve the stability of the microwave module's operating state. For example, the first power supply is designed to provide 20mA for the first power state, and the second power supply is designed to provide 25mA for the second power state. The switches of the two power supplies are controlled by two pins of the microcontroller. When the microwave module operates in low-power mode, the second power supply is turned off, and the first power supply is turned on simultaneously; when the microwave module operates in rated power mode, the first power supply is turned off, and the second power supply is turned on simultaneously. Alternatively, another power supply method can be used, for example, the first power supply is designed to provide 20mA for the first power state, and the second power supply is designed to provide 25mA for the second power state. The switches of the two power supplies are controlled by two pins of the microcontroller. When the microwave module operates in low-power mode, the second power supply is turned off, and the first power supply is turned on simultaneously; when the microwave module operates in rated power mode, the first power supply is maintained, and the second power supply is turned on simultaneously.

[0043] Secondly, embodiments of the present invention provide an automatic door triggering device, such as... Figure 3 As shown, Figure 3This is a schematic diagram of an automatic door triggering device according to an embodiment of the present invention. The triggering device includes: a microwave module 501 for transmitting microwave signals and receiving reflected echo signals; a signal processing module 502 for processing the reflected echo signals to obtain a real-time trigger signal for the automatic door; a calculation module 503 for comparing the amplitude and frequency of the real-time trigger signal with a preset trigger threshold to obtain a ratio, and switching the operating power of the microwave module according to the ratio; and a prompting module 504 for indicating the state switching of the operating power of the microwave module. This effectively reduces the idle power consumption of the microwave module while ensuring the accuracy and sensitivity of the microwave module during normal operation, thus extending the lifespan of the microwave module.

[0044] Thirdly, embodiments of the present invention provide an automatic door, such as... Figure 4 As shown, Figure 4 This is a schematic diagram of an automatic door according to an embodiment of the present invention, including a door body 601, a motor 602, and a microwave sensing device 603. The microwave sensing device 603 performs the method steps as described in the first aspect above. This effectively reduces the idle power consumption of the microwave module while ensuring the accuracy and sensitivity of the microwave module during normal operation, thus extending the lifespan of the microwave module.

[0045] The above provides a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present invention.

Claims

1. A method for triggering an automatic door, characterized in that, include: The microwave module transmits a microwave signal into the target space at a first power, receives the reflected echo signal, processes the reflected echo signal to obtain a first trigger signal for the automatic door, and calculates the amplitude and frequency of the first trigger signal. The amplitude and frequency range of the preset automatic door trigger threshold are set. The amplitude of the first trigger signal is compared with the amplitude of the preset trigger threshold. According to the preset ratio satisfied by the comparison result, the microwave module is switched to the second power, where the second power is greater than the first power. The step of switching the microwave module to the second power includes: The microwave module transmits a microwave signal to the target space at the second power, receives the reflected echo signal, processes the reflected echo signal to obtain the second trigger signal of the automatic door, and calculates the amplitude and frequency of the second trigger signal. The amplitude and frequency of the second trigger signal are compared with the preset trigger threshold. The operating power of the microwave module is switched according to the comparison results; The step of switching the operating power of the microwave module based on the comparison result includes: Within the set triggering period, when the frequency of the second triggering signal is within the frequency range of the preset triggering threshold, and the amplitude of the second triggering signal is greater than or equal to the amplitude of the preset triggering threshold, a triggering command is issued to control the automatic door to open. Within the set triggering period, when the frequency of the second trigger signal is within the frequency range of the preset triggering threshold, and the amplitude of the second trigger signal is less than the amplitude of the preset triggering threshold, the microwave module switches from the second power to the first power; If the frequency of the second trigger signal is outside the frequency range of the preset trigger threshold within the set trigger period, the microwave module switches from the second power to the first power.

2. The method according to claim 1, characterized in that, Also includes: Set a coarse detection frequency range, wherein the coarse detection frequency range is greater than or equal to the frequency range of the preset trigger threshold; Compare the frequency of the first trigger signal with the coarse detection frequency range; When the frequency of the first trigger signal is within the coarse detection frequency range, the amplitude of the first trigger signal is compared with the amplitude of the preset trigger threshold. When the ratio of the amplitude of the first trigger signal to the amplitude of the preset trigger threshold satisfies the preset ratio, the microwave module is switched to the second power.

3. The method according to claim 1 or 2, characterized in that, The amplitude and frequency range of the preset automatic door trigger threshold include: Set the trigger distance for the automatic door, and trigger the automatic door to open when a detected target enters the trigger distance; The detection range of the automatic door is set, and when the target enters the detection range, the microwave module switches from the first power to the second power; The detection distance is greater than or equal to the trigger distance; The first power and the second power are calculated based on the trigger distance and the detection distance.

4. The method according to claim 1, characterized in that, The step of issuing a trigger command to control the automatic door to open when the frequency of the second trigger signal is within the frequency range of the preset trigger threshold within the set trigger period, and the amplitude of the second trigger signal is greater than or equal to the amplitude of the preset trigger threshold, further includes: After issuing a trigger command to control the automatic door to open, the microwave module continues to maintain the second power within the set trigger cycle. When the frequency and amplitude of the second trigger signal do not meet the preset trigger threshold, the microwave module switches from the second power to the first power.

5. The method according to any one of claims 1, 2, or 4, characterized in that, When the microwave module switches from the second power to the first power or from the first power to the second power, the indicator device issues a prompt signal.

6. The method according to claim 5, characterized in that, The prompt signal includes at least one of sound, light, vibration, and digital display, and the indicating device can emit at least one of the prompt signals of sound, light, vibration, and digital display.

7. The method according to claim 6, characterized in that, The microwave module is powered by a first power source when operating at the first power; the microwave module is powered by a second power source when operating at the second power. Alternatively, when the microwave module operates at the second power, it is powered by both the first power source and the second power source simultaneously.

8. An automatic door triggering device, characterized in that, Performing the steps of the method as described in any one of claims 1 to 7; comprising: The microwave module is used to transmit microwave signals and receive reflected echo signals. The signal processing module is used to process the reflected echo signal to obtain the real-time trigger signal of the automatic door; The calculation module is used to compare the amplitude and frequency of the real-time trigger signal with the preset trigger threshold to obtain a ratio, and switch the operating power of the microwave module according to the conditions satisfied by the ratio. The prompt module is used to indicate the state switching of the microwave module's operating power.

9. An automatic door, characterized in that, It includes a door body, a motor, and a microwave sensing device, wherein the microwave sensing device performs the steps of the method as described in any one of claims 1 to 7.

Images