An air conditioner and a control method, device and readable storage medium thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGBO AUX ELECTRIC CO LTD
- Filing Date
- 2022-11-14
- Publication Date
- 2026-06-02
Smart Images
Figure CN116123661B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of air conditioning technology, and more specifically, to an air conditioner and its control method, apparatus and readable storage medium. Background Technology
[0002] The significance of gait recognition lies primarily in the non-repeatability of gait information. Due to varying physiological characteristics, each individual's bones, muscles, and tendons are inherently different, and their weight, center of gravity, and coordination abilities also vary, inevitably leading to diverse gait characteristics. Furthermore, people have different personalities, which are a significant factor influencing gait characteristics. Therefore, a person's gait characteristics are unreplicable and unique.
[0003] Gait recognition technology is a cutting-edge research topic in the field of biometrics, offering new possibilities for the development of human-computer interaction. Currently, gait detection technologies based on optical imaging and ultrasound are easily affected by factors such as light and obstacles. In recent years, the rapid development of millimeter-wave radar technology has provided a new direction for human gait research. This technology is unaffected by environmental factors, can operate in all weather conditions, and has significant practical value.
[0004] In existing technologies, when different people enter a room, especially strangers, the air conditioner cannot promptly identify their identity based on their gait and output an alarm.
[0005] Therefore, it is evident that the problem with the relevant technologies is that the technical solutions in these technologies cannot distinguish the identity of the person entering based on their gait and output corresponding prompts. Summary of the Invention
[0006] The problem solved by this invention is that the technical solutions in related technologies cannot distinguish the identity of the person entering based on their gait and output corresponding prompts.
[0007] To address the aforementioned problems, the primary objective of this invention is to provide a control method for an air conditioner.
[0008] A second objective of the present invention is to provide a control device for an air conditioner.
[0009] A third objective of this invention is to provide an air conditioner.
[0010] A fourth objective of this invention is to provide a readable storage medium.
[0011] To achieve the first objective of this invention, embodiments of this invention provide a control method for an air conditioner. The air conditioner includes a millimeter-wave radar module and a voice module. The control method includes: when a door is opened, the millimeter-wave radar module detects and acquires gait information data of the person opening the door; the millimeter-wave radar module acquires gait feature data based on the gait information data; the millimeter-wave radar module pairs the gait feature data with a gait information database to determine the identity data of the person opening the door; and the millimeter-wave radar module controls the voice module based on the identity data.
[0012] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: The method of this invention combines millimeter-wave radar gait recognition technology with air conditioners, enabling air conditioners to distinguish the identity of people based on their gait and then output corresponding voice prompts, effectively improving the user experience and indoor safety.
[0013] In one embodiment of the present invention, before the millimeter-wave radar module detects and acquires the gait information data of the person opening the door when the door is opened, the method further includes: collecting multiple gait information data; extracting multiple gait information data using the SVD algorithm to obtain multiple gait feature data; normalizing the multiple gait feature data and training them using a BP neural network to construct a gait information database.
[0014] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The gait information database constructed by the method of this embodiment contains gait information of different types of people. The millimeter-wave radar module can accurately identify the identity of people entering the room based on the information in the gait information database, thereby effectively improving the accuracy and reliability of the control method of this embodiment.
[0015] In one embodiment of the present invention, the millimeter-wave radar module pairs gait feature data with a gait information database to determine the identity data of the person opening the door, including: when the gait feature data only includes family member gait data, the person opening the door is identified as a family member; when the gait feature data includes both family member gait data and unfamiliar gait data, the person opening the door is identified as both a family member and a guest; when the gait feature data only includes unfamiliar gait data, the person opening the door is identified as an intruder.
[0016] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: The solution in this embodiment can accurately identify the identity of the person opening the door, thereby improving the accuracy of subsequent control methods and effectively enhancing the user experience.
[0017] In one embodiment of the present invention, the millimeter-wave radar module controls the voice module based on identity data, including: when the door opener is a family member, controlling the voice module to broadcast a welcome message from the homeowner; when the door opener is a family member or a guest, controlling the voice module to broadcast a welcome message from the homeowner and a welcome message from the guest; and when the door opener is an intruder, controlling the voice module to broadcast an intrusion alarm.
[0018] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: The solution in this embodiment can effectively improve the user experience and issue an alarm in a timely manner when a stranger intrudes, thereby enhancing the security of the user's residence.
[0019] In one embodiment of the present invention, the gait information database includes a family gait information database and a guest gait information database. When the person opening the door is a family member or a guest, after the voice module broadcasts the welcome message for the homeowner and the welcome message for the guest, the database further includes: training the BP neural network of the millimeter-wave radar module to learn the guest gait data and adding it to the guest gait information database.
[0020] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The solution in this embodiment has been further improved, enabling the method of the present invention to continuously enrich the content of the gait information database during use, effectively improving the reliability of the millimeter-wave radar module.
[0021] In one embodiment of the present invention, the gait information database includes a special gait information database. After the millimeter-wave radar module controls the voice module based on the identity data, the system further includes: the millimeter-wave radar module matching the gait feature data with the special gait information database to determine the control command; and the air conditioner switching the corresponding operating state according to the control command.
[0022] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: The method of this invention combines millimeter-wave radar-based gait recognition technology with air conditioners, which can not only distinguish the gait characteristics of family members, visitors and intruders, but also control the air conditioning mode non-contactly through special gait, providing new possibilities for disabled people (such as deaf-mute people, people with missing arms) or able-bodied people who are busy with their upper limbs, effectively improving the user experience.
[0023] In one embodiment of the present invention, the millimeter-wave radar module is communicatively connected to the MCU of the air conditioner.
[0024] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The solution of this embodiment combines the gait recognition technology based on millimeter-wave radar with the MCU of the air conditioner, so that the millimeter-wave radar module can directly participate in the control of the air conditioner's operating status, thereby improving the reliability of the millimeter-wave radar module.
[0025] To achieve the second objective of this invention, embodiments of the invention provide a control device for an air conditioner. The air conditioner includes a millimeter-wave radar module and a voice module. The control device includes: a detection module, used by the millimeter-wave radar module to detect and acquire gait information data of the person opening the door when the door is opened; a first calculation module, used by the millimeter-wave radar module to acquire gait feature data based on the gait information data; a second calculation module, used by the millimeter-wave radar module to match the gait feature data with a gait information database to determine the identity data of the person opening the door; and a control module, used by the millimeter-wave radar module to control the voice module based on the identity data.
[0026] The control device of the air conditioner in the embodiments of the present invention implements the steps of the control method of the air conditioner as in any embodiment of the present invention, and thus has all the beneficial effects of the control method of the air conditioner as in any embodiment of the present invention, which will not be repeated here.
[0027] To achieve the third objective of the present invention, an embodiment of the present invention provides an air conditioner, which includes: a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement the steps of the control method of the air conditioner as described in any embodiment of the present invention.
[0028] The air conditioner of the present invention implements the steps of the control method of the air conditioner as described in any embodiment of the present invention, and therefore has all the beneficial effects of the control method of the air conditioner as described in any embodiment of the present invention, which will not be repeated here.
[0029] To achieve the fourth objective of the present invention, embodiments of the present invention provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the control method for an air conditioner as described in any embodiment of the present invention.
[0030] The readable storage medium of this invention implements the steps of the air conditioner control method of any embodiment of this invention, and thus has all the beneficial effects of the air conditioner control method of any embodiment of this invention, which will not be repeated here. Attached Figure Description
[0031] Figure 1 This is a flowchart illustrating the steps of an air conditioner control method according to some embodiments of the present invention. Detailed Implementation
[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0033] [First Embodiment]
[0034] See Figure 1This embodiment provides a control method for an air conditioner, the air conditioner including a millimeter-wave radar module and a voice module, the control method including:
[0035] S100: When the door is opened, the millimeter-wave radar module detects and acquires the gait information data of the person opening the door;
[0036] S200: The millimeter-wave radar module acquires gait feature data based on gait information data;
[0037] S300: The millimeter-wave radar module pairs gait feature data with the gait information database to determine the identity data of the person opening the door;
[0038] S400: The millimeter-wave radar module controls the voice module based on identity data.
[0039] It should be noted that radar is mainly used in two basic aspects: the first is to determine the presence of a target, which is called radar detection; the second is to understand the specific information of the target detected by the radar, which is radar parameter information feature extraction and estimation. Modern radar has developed so rapidly that, in addition to measuring the target's distance, position, and altitude, it can also measure the target's velocity and extract relevant Doppler data.
[0040] Radar detects, locates, and identifies targets using electromagnetic signals. Its working principle is as follows: High-frequency signals are generated by an internal signal source within the radar system and transmitted externally via a transmitting antenna. When a target is in the direction of electromagnetic wave propagation, the electromagnetic wave is reflected. The receiving antenna receives the signal, and the echo signal is finally converted into an electrical signal processed by backend equipment. Therefore, radar utilizes the phenomenon of electromagnetic waves generated by moving objects being reflected to detect the presence of targets and determine their location.
[0041] Millimeter-wave radar transmits signals using wavelengths in the millimeter range. It is a non-contact technology operating in the 30GHz-300GHz frequency spectrum. Because it uses shorter wavelengths, it can provide sub-millimeter range accuracy. Furthermore, operating within this frequency range gives millimeter-wave radar certain characteristics: It can penetrate materials such as plastic, wall panels, and clothing; it is highly directional, forming a compact beam with 1° accuracy; it functions similarly to light, allowing for focusing and steering using standard optics; and it has a large absolute bandwidth, enabling it to distinguish between two close objects.
[0042] In this embodiment, the air conditioner includes a millimeter-wave radar module and a voice module. The millimeter-wave radar module identifies a person's identity by recognizing their gait information, and the voice module outputs corresponding voice information for different person identities.
[0043] For example, when the person entering the room is the homeowner or a family member, the voice module can output a welcoming voice prompt after recognizing the identity; when the person entering the room is a stranger, the voice module can output an alarm voice prompt.
[0044] It should be noted that the gait information data collected by the millimeter-wave radar mainly includes stride length, stride frequency, stride length, stride speed, walking cycle, stride phase angle, and walking time phase. The millimeter-wave radar module of this invention operates 24 / 7, and the control method of this embodiment begins when the door is opened.
[0045] Understandably, the method of the present invention combines millimeter-wave radar gait recognition technology with an air conditioner, enabling the air conditioner to distinguish a person's identity based on their gait and then output corresponding voice prompts, effectively improving the user experience and indoor safety.
[0046] Furthermore, before the millimeter-wave radar module detects and acquires the gait information data of the person opening the door when it is opened, it also includes:
[0047] S50: Collects multiple gait information data;
[0048] S60: Use the SVD algorithm to extract multiple gait information data and obtain multiple gait feature data;
[0049] S70: Normalizes multiple gait feature data and uses a BP neural network for training and learning, thereby constructing a gait information database.
[0050] In this embodiment, gait information data of multiple individuals is collected using millimeter-wave radar, mainly including stride length, stride frequency, stride length, stride speed, walking cycle, gait phase angle, and walking time phase. Gait features are extracted using the SVD algorithm, and after normalization of the feature data, a BP neural network is used to train and learn the data, ultimately forming a memory. Various gait information is collected to form a gait information database.
[0051] For example, the gait information database includes: a family database, a guest database, a special gait recognition database, and a blacklist database. The family database stores the gait data of family members; the guest database stores the gait data of guests who have visited; the special gait recognition database stores special gait data, which can be used to control the operation of the air conditioner; and the blacklist database stores the gait data of people who have illegally entered the room.
[0052] Understandably, the gait information database constructed by the method of this embodiment contains gait information of different types of people. The millimeter-wave radar module can accurately identify the identity of people entering the room based on the information in the gait information database, thereby effectively improving the accuracy and reliability of the control method of this embodiment.
[0053] Furthermore, the millimeter-wave radar module pairs gait feature data with a gait information database to determine the identity data of the person opening the door, including:
[0054] S310: When gait feature data only includes family member gait data, the identity of the person opening the door is determined to be a family member;
[0055] S320: When gait feature data includes gait data of family members and gait data of strangers, the identity of the person opening the door is determined to be a family member or a guest;
[0056] S330: When the gait feature data only includes unfamiliar gait data, the person opening the door is identified as an intruder.
[0057] In this embodiment, the millimeter-wave radar module operates 24 / 7. When the door is opened, the millimeter-wave radar collects the gait information of the person opening the door, extracts gait features using the SVD algorithm, and then pairs them with a gait information database. The gait information database includes at least two databases: a family database and a guest database. The family database stores gait data of family members; the guest database stores gait data of visiting guests.
[0058] Furthermore, in S310, when the detected door opener's gait information matches the family database in the gait information database, it indicates that the door opener is a family member.
[0059] Furthermore, in S320, when the detected door opener's gait information includes multiple gaits, and includes family members' gait information, it indicates that the door opener includes family members, and the other people are guests.
[0060] Furthermore, in S330, when the detected door opener's gait information only includes unfamiliar gait data, and the unfamiliar gait data cannot be matched with the family database and the guest database, it indicates that the door opener is an intruder.
[0061] Understandably, the solution in this embodiment can accurately identify the identity of the person opening the door, thereby improving the accuracy of subsequent control methods and effectively enhancing the user experience.
[0062] Furthermore, the millimeter-wave radar module controls the voice module based on identity data, including:
[0063] S410: When the person opening the door is a family member, the voice control module will announce a welcome message to the homeowner upon their return.
[0064] S420: When the person opening the door is a family member or a guest, the voice control module will announce a welcome message for the homeowner and a welcome message for the guest.
[0065] S430: When the person opening the door is an intruder, control the voice module to broadcast an intrusion alarm.
[0066] Understandably, the solution in this embodiment can effectively improve the user experience and issue timely alarms when strangers intrude, thereby enhancing the security of the user's residence.
[0067] Furthermore, the gait information database includes a family gait information database and a guest gait information database. When the person opening the door is a family member or a guest, after the control voice module broadcasts the homeowner's welcome message and the guest's welcome message, it also includes:
[0068] S421: The BP neural network of the millimeter-wave radar module learns guest gait data and adds it to the guest gait information database.
[0069] In this embodiment, when the detected door opener's gait information includes multiple gaits, and includes the gait information of family members, it indicates that the door opener includes family members, and the other people are guests. At this time, the BP neural network of the millimeter-wave radar module trains and learns the guests' gait data and adds it to the guest gait information database. When the guest enters the room again, the millimeter-wave radar module identifies the guest's identity to avoid triggering an alarm.
[0070] Understandably, the solution in this embodiment has been further improved, enabling the method of the present invention to continuously enrich the content of the gait information database during use, effectively improving the reliability of the millimeter-wave radar module.
[0071] Furthermore, the gait information database includes a special gait information database, which, after the millimeter-wave radar module controls the voice module based on identity data, also includes:
[0072] S500: The millimeter-wave radar module pairs gait feature data with a special gait information database to determine control commands;
[0073] S510: The air conditioner switches to the corresponding operating state according to the control command.
[0074] In this embodiment, typical human gait patterns include: double-leg swinging, intermittent jumping, circling, triangular walking, figure-eight walking, zigzag walking, etc. Users can also define their own gait patterns and add them to the corresponding special gait information database. This allows the air conditioner's operating status to be controlled through these special gait patterns.
[0075] When a user makes a special gait within the range of a millimeter-wave radar, the millimeter-wave radar collects the gait information, extracts gait features using the SVD algorithm, and then pairs them with a special gait recognition library in the gait information database. Once the pairing is successful, the air conditioning control command corresponding to the gait is executed.
[0076] For example, the air conditioning control commands corresponding to gait are as follows, and users can also customize the settings:
[0077] Swinging your feet – turning the air conditioner on / off;
[0078] A sudden jolt—the air conditioner turns on cooling mode, temperature 26 degrees Celsius;
[0079] Two bounces – the air conditioner turns on heating mode, temperature 28 degrees Celsius;
[0080] Walking in circles—the air conditioner increases its fan speed;
[0081] Walk in a Z-shaped pattern – reduce the air conditioner's fan speed.
[0082] Understandably, the method of the present invention combines millimeter-wave radar-based gait recognition technology with air conditioners, which can not only distinguish the gait characteristics of family members, visitors and intruders, but also control the air conditioning mode non-contactly through special gait, providing new possibilities for disabled people (such as deaf-mute people, people with missing arms) or able-bodied people who are busy with their upper limbs, and effectively improving the user experience.
[0083] Furthermore, the millimeter-wave radar module communicates with the air conditioner's MCU.
[0084] Understandably, the solution in this embodiment combines millimeter-wave radar-based gait recognition technology with the air conditioner's MCU, enabling the millimeter-wave radar module to directly participate in the control of the air conditioner's operating status, thereby improving the reliability of the millimeter-wave radar module.
[0085] [Second Embodiment]
[0086] This embodiment provides a control device for an air conditioner. The air conditioner includes a millimeter-wave radar module and a voice module. The control device includes: a detection module, used by the millimeter-wave radar module to detect and acquire gait information data of the person opening the door when the door is opened; a first calculation module, used by the millimeter-wave radar module to acquire gait feature data based on the gait information data; a second calculation module, used by the millimeter-wave radar module to match the gait feature data with a gait information database to determine the identity data of the person opening the door; and a control module, used by the millimeter-wave radar module to control the voice module based on the identity data.
[0087] The control device of the air conditioner in the embodiments of the present invention implements the steps of the control method of the air conditioner as in any embodiment of the present invention, and thus has all the beneficial effects of the control method of the air conditioner as in any embodiment of the present invention, which will not be repeated here.
[0088] [Third Embodiment]
[0089] This embodiment provides an air conditioner, which includes: a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement the steps of the control method of the air conditioner as described in any embodiment of the present invention.
[0090] The air conditioner of the present invention implements the steps of the control method of the air conditioner as described in any embodiment of the present invention, and therefore has all the beneficial effects of the control method of the air conditioner as described in any embodiment of the present invention, which will not be repeated here.
[0091] [Fourth Embodiment]
[0092] This embodiment provides a readable storage medium on which a program or instructions are stored. When the program or instructions are executed by a processor, they implement the steps of the control method for an air conditioner as described in any embodiment of the present invention.
[0093] The readable storage medium of this invention implements the steps of the air conditioner control method of any embodiment of this invention, and thus has all the beneficial effects of the air conditioner control method of any embodiment of this invention, which will not be repeated here.
[0094] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.
Claims
1. A control method for an air conditioner, characterized in that, The air conditioner includes a millimeter-wave radar module and a voice module, and the control method includes: When the door is opened, the millimeter-wave radar module detects and acquires the gait information data of the person opening the door; The millimeter-wave radar module acquires gait feature data based on the gait information data; The millimeter-wave radar module pairs the gait feature data with the gait information database to determine the identity data of the person opening the door; The millimeter-wave radar module controls the voice module based on the identity data; The gait information database includes a special gait information database, and after the millimeter-wave radar module controls the voice module based on the identity data, it also includes: The millimeter-wave radar module pairs the gait feature data with the special gait information database to determine control commands; The air conditioner switches to the corresponding operating state according to the control command; The special gait information database contains at least one special gait pattern, including double-foot swing, jumping, and circling walking. The special gait pattern and the control command are mapped to each other. The control method further includes: receiving user-defined special gait patterns and associated control commands, and adding them to the special gait information database; wherein the customization includes the user actively entering a new gait pattern and specifying its corresponding control command.
2. The control method according to claim 1, characterized in that, Before the millimeter-wave radar module detects and acquires the gait information data of the person opening the door when the door is opened, the method further includes: Collect multiple gait information data; The SVD algorithm is used to extract multiple gait information data to obtain multiple gait feature data. The gait feature data are normalized and trained using a BP neural network to construct the gait information database.
3. The control method according to claim 1, characterized in that, The millimeter-wave radar module pairs the gait feature data with a gait information database to determine the identity data of the person opening the door, including: When the gait feature data only includes the gait data of family members, the identity of the person opening the door is determined to be a family member; When the gait feature data includes the gait data of family members and the gait data of strangers, the identity of the person opening the door is determined to be a family member or a guest. When the gait feature data only includes the unfamiliar gait data, the person opening the door is identified as an intruder.
4. The control method according to claim 3, characterized in that, The millimeter-wave radar module controls the voice module based on the identity data, including: When the person opening the door is a family member, the voice module is controlled to broadcast a welcome message to the homeowner upon their return. When the person opening the door is a family member or a guest, the voice module is controlled to broadcast a welcome message for the homeowner and a welcome message for the guest. When the person opening the door is an intruder, the voice module is controlled to broadcast an intrusion alarm.
5. The control method according to claim 4, characterized in that, The gait information database includes a family gait information database and a guest gait information database. After controlling the voice module to broadcast the welcome message for the homeowner and the welcome message for the guest when the door opener is a family member or a guest, the system further includes: The BP neural network of the millimeter-wave radar module is trained to learn guest gait data and added to the guest gait information database.
6. The control method according to claim 1, characterized in that, The millimeter-wave radar module is communicatively connected to the MCU of the air conditioner.
7. A control device for an air conditioner, characterized in that, The control device is capable of implementing the control method according to any one of claims 1 to 6; The air conditioner includes a millimeter-wave radar module and a voice module, and the control device includes: The detection module is used to detect and acquire gait information data of the person opening the door when the door is opened by the millimeter-wave radar module; A first calculation module is used by the millimeter-wave radar module to obtain gait feature data based on the gait information data. The second calculation module is used by the millimeter-wave radar module to match the gait feature data with the gait information database to determine the identity data of the door opener. A control module is provided for the millimeter-wave radar module to control the voice module based on the identity data.
8. An air conditioner, characterized in that, The air conditioner includes: a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the control method as described in any one of claims 1 to 6.
9. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the control method as described in any one of claims 1 to 6.