Low-power intelligent care system, method and intelligent door

Abstract

The present invention provides a low-power intelligent nursing system, method and intelligent door. The infrared detection module continuously detects the monitoring area and preliminarily determines whether there is human activity in the monitoring area, and wakes up the radar detection module when there is human activity; the radar detection module reviews the detection results of the infrared detection module and obtains the position of the human body in the monitoring area when there is a human body in the monitoring area. According to the position of the human body in the monitoring area, the image acquisition module is turned on to capture an image of the monitoring area, or the image acquisition module is turned off, thereby improving the reliability of the device, reducing the impact of the external environment on the device, reducing the average power consumption of the device when it is working, and reducing the probability of the image acquisition module being triggered by mistake and unnecessary information recording.

Description

Technical Field

[0001] The present invention generally relates to the field of smart home technology, and in particular to a low-power smart care system, method and smart door. Background Art

[0002] In the smart home sector, determining a person's location often facilitates the online control of smart devices inside and outside the home, such as smart door locks, lights, and air conditioning. When a person is not present, these devices automatically enter a low-power or off state to conserve energy. Traditional human sensors use passive infrared technology, detecting motion by infrared signals. However, they cannot effectively detect slight movements or stillness, and are susceptible to interference from heat and light sources, leading to malfunction. Another common method is to use cameras to detect human behavior, but this method consumes a lot of power and is inconvenient and expensive for ordinary users to install.

[0003] In terms of home security monitoring, the use of smart doorbells and smart cat eyes does not damage the original structure of the door and is easy to install and use. However, it mainly relies on passive infrared sensors to trigger and wake up the camera for monitoring, which has obvious shortcomings: when someone stays at the door for a long time or someone passes through quickly, the camera has to turn on and consume power. If a safe distance is maintained from the door, there is no need to take pictures and remind the user; passive infrared sensors are at risk of being accidentally triggered by interference, such as interference from hot air, strong light, or even radio frequency signals.

[0004] The contents of the background technology section are merely the technologies known to the inventors and do not necessarily represent the existing technologies in this field. Summary of the Invention

[0005] In view of one or more deficiencies in the prior art, the present invention provides a low-power intelligent nursing system, comprising:

[0006] an infrared detection module configured to detect whether there is human activity in the monitoring area and to send a trigger signal in response to human activity;

[0007] a radar detection module having an on state and an off state, wherein the radar detection module is configured to emit radar waves to detect the monitoring area when in the on state, and determine and output, based on the echo, whether there is a human body in the monitoring area and the position of the human body in the monitoring area;

[0008] An image acquisition module having an on state and an off state, wherein the image acquisition module is configured to acquire an image of the monitored area when in the on state;

[0009] The control module is communicatively connected to the infrared detection module, the radar detection module and the image acquisition module respectively, and is configured to switch the radar detection module between an off state and an on state, switch the radar detection module from an off state to an on state according to the trigger signal, and switch the image acquisition module between an off state and an on state according to the position of the human body in the monitoring area.

[0010] According to one aspect of the present invention, the monitoring area includes a first prevention area, a second prevention area, and a third prevention area arranged in a direction gradually away from the low-power intelligent nursing system;

[0011] The control module is configured to detect when there is a human body in the first prevention zone and / or the second prevention zone;

[0012] Switching the image acquisition module to a power-on state;

[0013] After the first delay;

[0014] Determine whether there is a human body in the first defense zone;

[0015] When there is a human body in the first prevention zone, the image acquisition module is switched to or maintained in the on state, and after a second delay, it is determined whether there is a human body in the first prevention zone;

[0016] When there is no human body in the first protection zone, the image acquisition module is switched to or maintained in a shutdown state;

[0017] Determine whether there is a human body in the monitoring area;

[0018] When there is a human body in the monitoring area, determine whether there is a human body in the first prevention area.

[0019] According to one aspect of the present invention, the control module is configured to: when there is no human body in the monitoring area,

[0020] After the third delay;

[0021] If the radar detection module does not detect a human body in the monitoring area during the third delay, switching the radar detection module to an off state;

[0022] If the radar detection module detects a human body in the monitoring area during the third delay, the radar detection module is kept in an on state.

[0023] According to one aspect of the present invention, the control module has a sleep state and a working state; the control module is configured to switch from the sleep state to the working state when receiving the trigger signal, and switch the radar detection module from the off state to the on state; the control module is configured to switch the radar detection module to the off state and then switch the control module to the sleep state.

[0024] According to one aspect of the present invention, the image acquisition module includes:

[0025] an optical lens configured to capture an image of a monitored area;

[0026] an image sensor connected to the optical lens and configured to convert an image captured by the optical lens into image information;

[0027] an image information processor, connected to the image sensor and configured to process the image information;

[0028] The memory is connected to the image information processor and configured to store image information.

[0029] According to one aspect of the present invention, the low-power intelligent nursing system further includes a communication module, which is coupled to the control module or the image acquisition module, and the image acquisition module is configured to perform face recognition and / or motion recognition on the captured images; the control module is configured to determine whether to output an alarm information to the outside through the communication module based on the results of the face recognition and / or motion recognition after controlling the image acquisition module to switch to the power-on state.

[0030] According to one aspect of the present invention, the low-power intelligent care system further includes a power module, and the power module includes:

[0031] batteries;

[0032] a first power converter, wherein an input end of the first power converter is electrically connected to the battery, and an output end of the first power converter is electrically connected to the radar detection module, the infrared detection module, and the control module; and

[0033] A second power converter, wherein an input end of the second power converter is electrically connected to the battery, and an output end of the second power converter is electrically connected to the image acquisition module.

[0034] According to one aspect of the present invention, the power module further includes a switch, which is electrically connected between the battery and the second power converter, or electrically connected between the second power converter and the image acquisition module; the switch is communicatively connected to the control module, and the control module is configured to switch the image acquisition module between a power-on state and a power-off state by controlling the switch to be turned on or off.

[0035] The present invention also provides a method comprising:

[0036] Continuously detecting whether there is human activity in the monitoring area through an infrared detection module, wherein the infrared detection module sends a trigger signal in response to the human activity;

[0037] By means of the control module, the radar detection module is switched from an off state to an on state according to the trigger signal;

[0038] The radar detection module emits radar waves to detect the monitoring area, and the radar detection module determines and outputs whether there is a human body in the monitoring area and the position of the human body in the monitoring area based on the echo;

[0039] The control module switches the image acquisition module between an off state and an on state according to the position of the human body in the monitoring area. When the image acquisition module is in the on state, the image of the monitoring area is acquired by the image acquisition module.

[0040] According to one aspect of the present invention, the monitoring area includes a first prevention area, a second prevention area, and a third prevention area arranged in a direction gradually away from the low-power intelligent nursing system;

[0041] The steps of switching the image acquisition module between an off state and an on state according to the position of the human body in the monitoring area include:

[0042] When there is a human body in the first defense zone and / or the second defense zone;

[0043] Switching the image acquisition module to a power-on state;

[0044] After the first delay;

[0045] Determine whether there is a human body in the first defense zone;

[0046] When there is a human body in the first prevention zone, the image acquisition module is switched to or maintained in the on state, and after a second delay, it is determined whether there is a human body in the first prevention zone;

[0047] When there is no human body in the first protection zone, the image acquisition module is switched to or maintained in a shutdown state;

[0048] Determine whether there is a human body in the monitoring area;

[0049] When there is a human body in the monitoring area, determine whether there is a human body in the first prevention area.

[0050] According to one aspect of the present invention, the method further comprises:

[0051] When there is no human body in the monitoring area,

[0052] After the third delay;

[0053] If the radar detection module does not detect a human body in the monitoring area during the third delay, switching the radar detection module to an off state;

[0054] If the radar detection module detects a human body in the monitoring area during the third delay, the radar detection module is kept in an on state.

[0055] According to one aspect of the present invention, the control module has a sleep state and a working state; the method further comprises:

[0056] When the trigger signal is received, the control module is switched from the dormant state to the working state;

[0057] After the radar detection module is switched to the off state, the control module is switched to the sleep state.

[0058] According to one aspect of the present invention, the method further comprises:

[0059] When the image acquisition module is in a powered-on state, performing face recognition and / or motion recognition on the image acquired by the image acquisition module;

[0060] The control module determines whether to output the alarm information to the outside through the communication module based on the results of face recognition and / or motion recognition.

[0061] The present invention also provides an intelligent door, comprising the low-power intelligent care system as described above.

[0062] Compared with the prior art, the embodiments of the present invention provide a low-power intelligent care system, method and intelligent door, which continuously detects the monitoring area through the infrared detection module and preliminarily determines whether there is human activity in the monitoring area, and wakes up the radar detection module when there is human activity; the detection results of the infrared detection module are reviewed by the radar detection module and the position of the human body in the monitoring area is obtained when there is a human body in the monitoring area. According to the position of the human body in the monitoring area, the image acquisition module is turned on to collect images of the monitoring area, or the image acquisition module is turned off, which improves the reliability of the equipment, reduces the impact of the external environment on the equipment, reduces the average power consumption of the equipment when it is working, and reduces the probability of the image acquisition module being triggered by mistake and unnecessary information recording. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0064] Figure 1 A schematic diagram of a low-power intelligent nursing system according to an embodiment of the present invention is shown;

[0065] Figure 2 A schematic diagram showing a monitoring area of ​​a low-power intelligent care system according to an embodiment of the present invention is shown;

[0066] Figure 3 A flowchart of a low-power intelligent nursing system according to an embodiment of the present invention is shown;

[0067] Figure 4 A flow chart of a method according to an embodiment of the present invention is shown.

[0068] In the figure: 100, low-power intelligent care system; 110, control module; 120, infrared detection module; 130, radar detection module; 140, image acquisition module; 141, optical lens; 142, image sensor; 143, image information processor; 144, memory; 150, communication module; 160, power module; 161, battery; 162, first power converter; 163, second power converter; 164, switch; 210, first protection zone; 220, second protection zone; 230, third protection zone. DETAILED DESCRIPTION

[0069] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0070] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the aforementioned features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0071] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, removable, or integral connections; mechanical, electrical, or intercommunication connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0072] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact via another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is at a lower level than the second feature.

[0073] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0074] The following describes embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0075] Figure 1 A low-power intelligent nursing system 100 according to an embodiment of the present invention is shown. Figure 1 Provide a detailed description.

[0076] The low-power intelligent care system 100 can be installed outside a residence door, an office door, or other locations where care is required. Figure 1 As shown, the low-power intelligent care system 100 includes a control module 110 and an infrared detection module 120 , a radar detection module 130 and an image acquisition module 140 , which are respectively connected to the control module 110 for communication.

[0077] like Figure 1 As shown, the infrared detection module 120 is used to perform normalized detection of the monitoring area. The infrared detection module 120 can be configured to detect whether there is human activity in the monitoring area and send a trigger signal in response to human activity. For example, when someone enters the monitoring area, the infrared detection module 120 sends a trigger signal to the control module 110. During the detection process, the infrared detection module 120 may send the trigger signal to the control module 110 due to misjudgment (the misjudgment may be caused by the presence of animals, hot wind, or sunlight in the monitoring area). Specifically, the infrared detection module 120 can be a passive infrared detector. Passive infrared detectors do not need to actively send signals. Passive infrared detectors can directly receive and respond to infrared signals in nature, have extremely low power consumption, and can be in a state of waiting to be triggered for a long time.

[0078] like Figure 1As shown, the radar detection module 130 is used to detect whether a person is present in the monitoring area to verify the detection results of the infrared detection module 120. The radar detection module 130 has an on state and an off state. When in the on state, the radar detection module 130 is configured to emit radar waves to detect the monitoring area and, based on the echo, determine and output whether a person is present in the monitoring area and the person's location within the monitoring area. Specifically, the radar detection module 130 may be a millimeter-wave radar sensor (e.g., a frequency-modulated continuous wave radar). Millimeter-wave radar sensors are active detection devices that require higher power consumption than passive infrared detectors, but still significantly lower than imaging devices. Millimeter-wave radar sensors can transmit pulse signals with a frequency that varies linearly with time and detect the reflected echoes of the pulse signals. The echoes are used to determine whether a person is present in the monitoring area and, if so, the person's location within the monitoring area. Millimeter-wave radar sensors can detect even small changes in the monitoring area. Even if a person is not moving in the monitoring area, the millimeter-wave radar sensor can detect the physiological movement characteristics generated by breathing and heartbeats to accurately determine whether a person is present in the monitoring area.

[0079] like Figure 1 As shown, the image acquisition module 140 is used to capture images of the monitored area. The image acquisition module 140 has an on state and an off state. The image acquisition module 140 is configured to capture images of the monitored area when in the on state. Specifically, the image acquisition module 140 may include an optical lens 141, an image sensor 142, an image information processor 143 and a memory 144. Among them, the optical lens 141 is configured to capture images of the monitored area. The image sensor 142 (for example, it can be a CMOS sensor, Complementary Metal-Oxide-Semiconductor) is connected to the optical lens 141 and is used to convert the image captured by the optical lens 141 into image information. The image information processor 143 is connected to the image sensor 142 and is used to process the image information. The memory 144 is connected to the image information processor 143 and is used to store the above-mentioned image information.

[0080] like Figure 1 As shown, the control module 110 can switch the radar detection module 130 between an off state and an on state. For example, upon receiving a trigger signal, the control module 110 can switch the radar detection module 130 from an off state to an on state. Alternatively, the control module 110 can switch the radar detection module 130 from an on state to an off state upon detecting that there is no human body in the monitoring area. The control module 110 can also switch the image acquisition module 140 between an off state and an on state based on the location of a human body in the monitoring area.

[0081] According to one embodiment of the present invention, the control module 110 has a sleep state and an operating state. The power consumption of the control module 110 in the sleep state is lower than that in the operating state. Under normal circumstances, the control module 110 can be in the sleep state. When the control module 110 receives a trigger signal, the control module 110 can switch from the sleep state to the operating state. When the control module 110 switches the radar detection module 130 to the off state, the control module 110 can switch from the operating state to the sleep state.

[0082] Figure 2 FIG. 1 shows a schematic diagram of a monitoring area of ​​a low-power intelligent nursing system 100 according to an embodiment of the present invention. Figure 2 As shown, the monitoring area may include a first prevention zone 210 , a second prevention zone 220 and a third prevention zone 230 which are arranged in a direction gradually away from the low-power intelligent nursing system 100 .

[0083] Figure 3 FIG. 1 shows a flowchart of a low-power intelligent nursing system 100 according to an embodiment of the present invention. Figure 3 As shown, after the low-power intelligent care system 100 is powered on and started, the low-power intelligent care system 100 enters a low-power sleep state. In the low-power sleep state, the control module 110 is in a sleep state, the radar detection module 130 is in a shutdown state, the image acquisition module 140 is in a shutdown state, and the infrared detection module 120 continues to detect the target area.

[0084] When a person enters the monitoring area, the infrared detection module 120 responds to the human activity and sends a trigger signal to the control module 110. After receiving the trigger signal, the control module 110 switches from the sleep state to the working state and switches the radar detection module 130 to the on state.

[0085] After the radar detection module 130 enters the on state, it continuously detects the monitoring area to determine whether there is a human body in the monitoring area and the position of the human body in the monitoring area, and outputs it to the control module 110. If there is a human body in the monitoring area, the control module 110 determines whether the human body is in the first prevention zone 210 and / or the second prevention zone 220. If the human body is not in the first prevention zone 210 and / or the second prevention zone 220 (that is, the human body is in the third prevention zone 230), the radar detection module 130 is kept in the on state to continuously detect the monitoring area, determine whether there is a human body in the monitoring area and the position of the human body in the monitoring area, and outputs it to the control module 110. If the human body is in the first prevention zone 210 and / or the second prevention zone 220, the control module 110 switches the image acquisition module 140 to the on state, and the image acquisition module 140 is turned on. Module 140 collects images in the monitoring area, and after a first delay, determines whether there is a human body in the first prevention zone 210 through the information output by the radar detection module 130. If there is a human body in the first prevention zone 210, the image acquisition module 140 is maintained in the power-on state, and after a second delay, it is determined again whether there is a human body in the first prevention zone 210. If there is no human body in the first prevention zone 210, the image acquisition module 140 is switched to the power-off state, and the information output by the radar detection module 130 is used to determine whether there is a human body in the monitoring area. If there is a human body in the monitoring area, it is determined whether there is a human body in the first prevention zone 210.

[0086] Among them, if there is no human body in the monitoring area, after the third delay, if the radar detection module 130 does not detect a human body in the monitoring area during the third delay, the control module 110 switches the radar detection module 130 to the off state. If the radar detection module 130 detects a human body in the monitoring area during the third delay, the radar detection module 130 is kept in the on state, and the control module 110 determines whether the human body is in the first prevention zone 210 and / or the second prevention zone 220.

[0087] According to one embodiment of the present invention, Figure 1 and Figure 3As shown, the low-power intelligent care system 100 also includes a communication module 150, which is coupled to the control module 110. In other embodiments, the communication module 150 may also be coupled to the image acquisition module 140. The image acquisition module 140 is configured to perform facial recognition and / or motion recognition on the captured images. After the control module 110 controls the image acquisition module 140 to switch to the power-on state, it is configured to determine whether to output an alarm signal to the outside through the communication module 150 based on the results of the facial recognition and / or motion recognition. For example, the memory 144 may store the user's facial information, and the image information processor 143 may process the captured image information, obtain the facial information contained in the image information, and match the facial information in the image information with the user's facial information. If the match fails, the communication module 150 may output an alarm signal to the outside (e.g., the user's mobile phone). If the match is successful, the communication module 150 may output other signals to the outside (e.g., output an unlock signal to the smart door lock). In another embodiment, the image information processor 143 identifies the human body in the image information over a period of time and determines the direction of movement of the human body. When the human body continues to approach the low-power intelligent nursing system 100 and / or the door, an alarm signal is output to the outside (such as the user's mobile phone) through the communication module 150. When the human body does not continue to approach the low-power intelligent nursing system 100 and / or the door, no alarm signal is output to the outside.

[0088] According to one embodiment of the present invention, Figure 1 As shown, the low-power intelligent nursing system 100 also includes a power module 160, which is used to power other components. The power module 160 may include a battery 161, a first power converter 162, and a second power converter 163. The input end of the first power converter 162 is electrically connected to the battery 161, and the output end of the first power converter 162 is electrically connected to the radar detection module 130, the infrared detection module 120, the control module 110, and the communication module 150. The input end of the second power converter 163 is electrically connected to the battery 161, and the output end of the second power converter 163 is electrically connected to the image acquisition module 140. The first power converter 162 and the second power converter 163 can convert the output voltage of the battery 161 and provide it to the corresponding electrical components. Preferably, the power module 160 further includes a switch 164, which is electrically connected between the battery 161 and the second power converter 163. The switch 164 is in communication with the control module 110. The control module 110 can switch the image acquisition module 140 between an on state and an off state by controlling the switch 164 to be turned on or off. In other embodiments, the switch 164 can also be electrically connected between the second power converter 163 and the image acquisition module 140.

[0089] Compared with the prior art, the low-power intelligent care system 100 provided in the embodiment of the present invention utilizes the distance detection capability of the radar detection module 130 to divide the monitoring area into multiple prevention zones, and adopts different monitoring schemes for different prevention zones, thereby reducing the probability of false triggering of the image acquisition module 140 and unnecessary information recording, reducing the operating power consumption of the equipment, increasing the service life of the battery 161, and improving the reliability of human presence detection.

[0090] Figure 4 A flowchart of a method according to an embodiment of the present invention is shown. The method can be implemented by the low-power intelligent nursing system 100. The method includes the following steps: Figure 4 Describe them in detail respectively.

[0091] In step S210 , the infrared detection module 120 continuously detects whether there is human activity in the monitoring area, and the infrared detection module 120 sends a trigger signal in response to the human activity.

[0092] In step S220, the radar detection module 130 is switched from the off state to the on state according to the trigger signal via the control module 110. Preferably, the control module 110 has a sleep state and an operating state. When the control module 110 receives the trigger signal, the control module 110 switches from the sleep state to the operating state.

[0093] In step S230, radar waves are emitted by the radar detection module 130 to detect the monitoring area. The radar detection module 130 determines and outputs whether there is a human body in the monitoring area and the position of the human body in the monitoring area based on the echo. If there is a human body in the monitoring area, the process proceeds to step S240.

[0094] In step S240: through the control module 110, the acquisition module is switched between the off state and the on state according to the position of the human body in the monitoring area. When the image acquisition module 140 is in the on state, the image acquisition module 140 acquires images of the monitoring area.

[0095] According to one embodiment of the present invention, step S240 may include the following steps.

[0096] In step S241, it is determined whether the human body is in the first prevention zone 210 and / or the second prevention zone 220. If the human body is in the first prevention zone 210 and / or the second prevention zone 220, the process proceeds to step S242; if the human body is not in the first prevention zone 210 and / or the second prevention zone 220, the process returns to step S230.

[0097] In step S242 , the image acquisition module 140 is switched to the on state. When the image acquisition module 140 is in the on state, the image of the monitored area is acquired by the image acquisition module 140 , and the process proceeds to step S243 after a first delay.

[0098] Step S243: Determine whether a human body is present within the first prevention zone 210. This determination can be made based on the detection results of the radar detection module 130. If a human body is present within the first prevention zone 210, the process proceeds to step S244. If not, the process proceeds to step S245.

[0099] In step S244, the image acquisition module 140 is switched to or maintained in the on state. If the image acquisition module 140 is already in the on state, the image acquisition module 140 is maintained in the on state. If the image acquisition module 140 is in the off state, the image acquisition module 140 is switched to the on state. After the second delay, the process returns to step S243.

[0100] Preferably, when the image acquisition module 140 is powered on, it can also perform facial recognition and / or motion recognition on the captured images. The control module 110 can determine whether to output an alarm message to the outside through the communication module 150 based on the results of the facial recognition and / or motion recognition. For example, the image acquisition module 140 processes the captured image information to obtain facial information contained in the image information, and matches the facial information in the image information with pre-stored facial information of the user. If the match fails, the image information processor 143 can identify the human body in the image information over a period of time and determine the direction of the human body's movement. If the human body continues to approach the low-power intelligent care system 100 and / or the door, the communication module 150 can output an alarm signal to the outside (e.g., the user's mobile phone). If the human body does not continue to approach the low-power intelligent care system 100 and / or the door, no alarm signal can be output to the outside. If the match is successful, the communication module 150 can output other signals to the outside (e.g., output an unlock signal to the smart door lock).

[0101] In step S245 , the image acquisition module 140 is switched to or maintained in the off state. If the image acquisition module 140 is already in the off state, the image acquisition module 140 is maintained in the off state; if the image acquisition module 140 is in the on state, the image acquisition module 140 is switched to the off state.

[0102] In step S246: determine whether there is a human body in the monitoring area. When there is a human body in the monitoring area, return to step S243.

[0103] According to one embodiment of the present invention, the method further includes step S250. In step S230 and step S246, when there is no human body in the monitoring area, step S250 is entered. In step S250: after a third delay, during the third delay, the radar detection module 130 continues to detect the monitoring area. If the radar detection module 130 does not detect a human body in the monitoring area during the third delay, the radar detection module 130 is switched to an off state and the control module 110 is switched to a dormant state. If the radar detection module 130 detects a human body in the monitoring area during the third delay, the process returns to step S240.

[0104] The present invention also provides a smart door, which includes the low-power intelligent care system 100 as described above.

[0105] Finally, it should be noted that the above descriptions are merely embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A low-power intelligent nursing system, comprising: an infrared detection module configured to detect whether there is human activity in the monitoring area and to send a trigger signal in response to human activity; a radar detection module having an on state and an off state, wherein the radar detection module is configured to emit radar waves to detect the monitoring area when in the on state, and determine and output, based on the echo, whether there is a human body in the monitoring area and the position of the human body in the monitoring area; An image acquisition module having an on state and an off state, wherein the image acquisition module is configured to acquire images of the monitored area when in the on state and to perform face recognition on the acquired images; Communication module; a control module, communicatively connected to the infrared detection module, the radar detection module, the communication module, and the image acquisition module, respectively, and configured to switch the radar detection module between an off state and an on state, to switch the radar detection module from an off state to an on state according to the trigger signal, and to switch the image acquisition module between an off state and an on state according to the position of the human body in the monitoring area; The control module is further configured to output an alarm message or an unlocking signal to the outside through the communication module according to the face recognition result after controlling the image acquisition module to switch to the power-on state; The monitoring area includes a first prevention area, a second prevention area and a third prevention area arranged in a direction gradually away from the low-power intelligent nursing system; The control module is configured to keep the radar detection module in an on state when the human body is in the third prevention zone; The control module is further configured to: Switching the image acquisition module to a power-on state; After the first delay; Determine whether there is a human body in the first defense zone; When there is a human body in the first prevention zone, the image acquisition module is switched to or maintained in the on state, and after a second delay, it is determined whether there is a human body in the first prevention zone; When there is no human body in the first prevention zone, the image acquisition module is switched to or maintained in the off state to determine whether there is a human body in the monitoring area; When there is a human body in the monitoring area, determine whether there is a human body in the first prevention area; When there is no human body in the monitoring area, After the third delay; If the radar detection module does not detect a human body in the monitoring area during the third delay, switching the radar detection module to an off state; If the radar detection module detects a human body in the monitoring area during the third delay, the radar detection module is kept in an on state.

2. The low-power intelligent nursing system according to claim 1, wherein: The control module has a sleep state and a working state; the control module is configured to switch from the sleep state to the working state when receiving the trigger signal, and switch the radar detection module from the off state to the on state; the control module is configured to switch the radar detection module to the off state and then switch the control module to the sleep state.

3. The low-power intelligent nursing system according to claim 1, wherein: The image acquisition module includes: an optical lens configured to capture an image of a monitored area; an image sensor connected to the optical lens and configured to convert an image captured by the optical lens into image information; an image information processor, connected to the image sensor and configured to process the image information; The memory is connected to the image information processor and configured to store image information.

4. The low-power intelligent nursing system according to claim 3, wherein: The image acquisition module is configured to perform motion recognition on the acquired images; the control module is configured to determine whether to output alarm information to the outside through the communication module according to the result of the motion recognition after controlling the image acquisition module to switch to the power-on state.

5. The low-power intelligent nursing system according to claim 1, wherein: The low-power intelligent nursing system further includes a power supply module, which includes: batteries; a first power converter, wherein an input end of the first power converter is electrically connected to the battery, and an output end of the first power converter is electrically connected to the radar detection module, the infrared detection module, and the control module; and A second power converter, wherein an input end of the second power converter is electrically connected to the battery, and an output end of the second power converter is electrically connected to the image acquisition module.

6. The low-power intelligent nursing system according to claim 5, wherein: The power supply module also includes a switch, which is electrically connected between the battery and the second power converter, or electrically connected between the second power converter and the image acquisition module; the switch is communicatively connected to the control module, and the control module is configured to control the switch to be turned on or off to switch the image acquisition module between a power-on state and a power-off state.

7. A method comprising: Continuously detecting whether there is human activity in the monitoring area through an infrared detection module, wherein the infrared detection module sends a trigger signal in response to the human activity; By means of the control module, the radar detection module is switched from an off state to an on state according to the trigger signal; The radar detection module emits radar waves to detect the monitoring area, and the radar detection module determines and outputs whether there is a human body in the monitoring area and the position of the human body in the monitoring area based on the echo; By means of a control module, the image acquisition module is switched between an off state and an on state according to the position of the human body in the monitoring area, and when the image acquisition module is in the on state, an image of the monitoring area is acquired by the image acquisition module; The method further comprises: When the image acquisition module is in a powered-on state, performing face recognition on the image acquired by the image acquisition module; The control module determines whether to output an alarm message or unlocking signal to the outside through the communication module based on the result of face recognition; The monitoring area includes a first prevention area, a second prevention area, and a third prevention area arranged in a direction gradually away from the low-power intelligent nursing system; Among them, when the human body is in the third prevention zone, keep the radar detection module in the open state; The step of switching the image acquisition module between the off state and the on state according to the position of the human body in the monitoring area includes: When there is a human body in the first defense zone and / or the second defense zone, Switching the image acquisition module to a power-on state; After the first delay; Determine whether there is a human body in the first defense zone; When there is a human body in the first prevention zone, the image acquisition module is switched to or maintained in the on state, and after a second delay, it is determined whether there is a human body in the first prevention zone; When there is no human body in the first protection zone, the image acquisition module is switched to or maintained in a shutdown state; Determine whether there is a human body in the monitoring area; When there is a human body in the monitoring area, determine whether there is a human body in the first prevention area; The method further comprises: When there is no human body in the monitoring area, After the third delay; If the radar detection module does not detect a human body in the monitoring area during the third delay, switching the radar detection module to an off state; If the radar detection module detects a human body in the monitoring area during the third delay, the radar detection module is kept in an on state.

8. The method according to claim 7, wherein: The control module has a dormant state and a working state; the method further includes: When the trigger signal is received, the control module is switched from the dormant state to the working state; After the radar detection module is switched to the off state, the control module is switched to the sleep state.

9. The method according to claim 7, wherein: The method further comprises: When the image acquisition module is in the on state, the image acquisition module performs motion recognition on the acquired image; and the control module determines whether to output alarm information to the outside through the communication module according to the result of the motion recognition.

10. A smart door comprising the low-power intelligent care system according to any one of claims 1 to 6.

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