Human sensing module and air conditioning device

Abstract

The application discloses a human body sensing module, which is used for detecting human body existence or motion and can manually adjust the installation reference angle; comprising: a reader-writer which rotates or moves along with the change of the installation reference angle; a holder which is correspondingly arranged with the reader-writer; a plurality of tags which are arranged on the holder and are distributed along the rotating direction or the moving direction of the reader-writer; and the configuration is to identify the current position and / or the rotating angle of the reader-writer and determine the installation reference angle of the human body sensing module according to the unique identification information of the tags read by the reader-writer, and output the detection result based on the installation reference angle. An air conditioning device is also provided. The application forms a positioning reference by the tags, reads the unique identification information of the tags by the linked reader-writer, automatically identifies the current position and / or the rotating angle of the human body sensing module, thereby determines the actual installation reference angle, reduces the human participation, and avoids the problem that the actual installation reference angle does not match the control program.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more particularly to a human body sensing module and an air conditioning device. Background Technology

[0002] The human detection module (also known as a human body sensor module) in an air conditioner is mainly used to detect the presence of people in the room. The air conditioner can adjust its operation based on the detection results, achieving intelligent control and saving energy. From a principle perspective, the human detection module can be based on an infrared sensor, utilizing changes in infrared radiation emitted by the human body to detect its presence; or it can be based on a radar sensor, utilizing the reflection of millimeter-wave signals to detect its presence; or it can use a camera to capture images and employ image processing algorithms to detect the presence of people.

[0003] The installation reference angle of the human sensor module has a significant impact on the detection results of the human sensor module. The prior art discloses corresponding structural designs to facilitate the use of installers. According to the actual situation, the appropriate installation angle can be selected. For example, Chinese patent application (CN213778102U) discloses that the orientation angle of the human sensor can be adjusted by adjusting the knob.

[0004] However, the offset of the installation reference angle directly affects the detection range and coverage area of ​​the human sensor module. Appropriate compensation needs to be made in the control algorithm after adjustment; otherwise, it may lead to an expansion of the blind zone or misjudgments. In existing technology, the installer manually determines the position of the human sensor module based on the installation environment, and then further determines the algorithm compensation parameters of the human sensor module through a DIP switch or wired controller. This approach may be prone to errors and omissions in manual setting, and users cannot adjust the position of the human sensor module according to their own needs.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0006] To address the issue of high error rates and the inability of users to manually adjust human body sensors when determining the installation reference angle based on the actual installation environment, a human body sensor module is designed and provided. This module is used to detect the presence or movement of a human body.

[0007] In one or more embodiments of this application, the mounting reference angle of the human body sensing module can be manually adjusted.

[0008] In one or more embodiments of this application, the human body sensing module includes a reader and a retainer. The reader rotates or moves as the mounting reference angle changes. The retainer is correspondingly disposed to the reader. Multiple tags are disposed on the retainer and distributed along the rotation or movement direction of the reader.

[0009] In one or more embodiments of this application, the human body sensing module is configured to identify the current position and / or rotation angle of the reader / writer based on the unique identification information of the tag read by the reader / writer; determine the installation reference angle of the human body sensing module based on the current position and / or rotation angle of the reader / writer; and output the detection result based on the installation reference angle.

[0010] In one or more embodiments of this application, the human body sensing module can be manually adjusted to several preset installation positions to operate according to the installation reference angle corresponding to the preset installation position.

[0011] In one or more embodiments of this application, the retainer has a plurality of retaining surfaces, which are configured to correspond to the preset installation positions; a label is provided on the retaining surface.

[0012] In one or more embodiments of this application, the human body sensing module is configured to identify the current position of the reader / writer based on the unique identification information of the tag on the corresponding holding surface read by the reader / writer; and based on the current position of the reader / writer, determine the preset installation position of the human body sensing module, and output the detection result based on the installation reference angle corresponding to the preset installation position.

[0013] In one or more embodiments of this application, after outputting the detection result based on the installation reference angle corresponding to the preset installation position, the human body sensing module is configured to cause the reader to enter a sleep mode.

[0014] In one or more embodiments of this application, after outputting the detection result based on the installation reference angle corresponding to the preset installation position, the human body sensing module is configured to start a set waiting period; determine whether the unique identification information identified by the reader has changed within the set waiting period; and, if the unique identification information identified by the reader has not changed within the set waiting period, enable the reader to enter a sleep mode.

[0015] In one or more embodiments of this application, the human body sensing module is further configured to monitor changes in active heat sources after the reader enters sleep mode, and to presume the existence of an abnormal active heat source and activate the reader when the changes in active heat sources meet preset abnormal active heat source estimation conditions.

[0016] In one or more embodiments of this application, the reader identifies its current position again based on the unique identification information of the tag on the corresponding holding surface; and based on the current position of the reader, determines the preset installation position of the human body sensing module, and outputs the detection result based on the installation reference angle corresponding to the preset installation position.

[0017] In one or more embodiments of this application, the presumed condition for abnormal heat source activity includes at least an increasing trend in the detection signal of the active heat source.

[0018] In one or more embodiments of this application, the active heat source is infrared radiation emitted by the human body.

[0019] In one or more embodiments of this application, the human body sensing module is further configured to monitor changes in active heat sources after the reader enters sleep mode, and when the changes in active heat sources meet preset abnormal active heat source estimation conditions, to estimate the existence of an abnormal active heat source, to stop outputting detection results based on the installation reference angle corresponding to the preset installation position, and to activate the reader.

[0020] In one or more embodiments of this application, the presumed conditions for the abnormal activity heat source are:

[0021] The distance between the active heat source and the human body sensing module decreases.

[0022] The area of ​​the active heat source is increasing;

[0023] The area of ​​the active heat source exceeds a preset area threshold; and

[0024] The active heat source detection signal shows an increasing trend.

[0025] In one or more embodiments of this application, the human body sensing module is further configured to: after the reader enters sleep mode, collect the distance between the active heat source and the human body sensing module and establish a distance time series; determine whether there are continuous subsequences in the distance time series that satisfy a decreasing condition; if the duration of the subsequences that satisfy the decreasing condition satisfies a first preset duration condition, then it is presumed that the distance between the active heat source and the human body sensing module is decreasing.

[0026] In one or more embodiments of this application, the human body sensing module is further configured to: after the reader enters sleep mode, collect the active heat source area and establish an active heat source area time series; determine whether there are continuous subsequences in the active heat source area series that satisfy the increasing condition; if the duration of the subsequences that satisfy the increasing condition satisfies a second preset duration condition, then it is presumed that the active heat source area is increasing.

[0027] A second aspect of this application provides an air conditioning device, including an indoor unit and a human body sensing module; the human body sensing module is used to detect the presence or movement of a human body in an air-conditioned room.

[0028] In one or more embodiments of this application, the human body sensing module is embedded in the indoor unit, and the installation reference angle of the human body sensing module can be manually adjusted.

[0029] In one or more embodiments of this application, the human body sensing module includes: a reader / writer that rotates or moves with changes in the mounting reference angle; and a retainer corresponding to the reader / writer; a plurality of tags are disposed on the retainer and distributed along the rotation or movement direction of the reader / writer; the human body sensing module is configured to identify the current position and / or rotation angle of the reader / writer based on the unique identification information of the tags read by the reader / writer; determine the mounting reference angle of the human body sensing module based on the current position and / or rotation angle of the reader / writer, and output a detection result based on the mounting reference angle; the air conditioning device operates based on the detection result.

[0030] Compared with the prior art, the advantages and positive effects of the present invention are:

[0031] This application uses tags to form a positioning reference. By reading the unique identification information of the tags through a linked reader, the current position and / or rotation angle of the human body sensing module are automatically identified, thereby determining its actual installation reference angle. This reduces human intervention, avoids the problem of mismatch between the actual installation reference angle and the control program, ensures that the detection range and coverage angle of the human body sensing module match the actual application scenario, and improves installation efficiency and reliability.

[0032] Other features and advantages of the present invention will become clearer after reading the detailed embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic block diagram of the human body sensing module provided in some embodiments of the present invention;

[0035] Figure 2 This is a schematic block diagram of the human body sensing module provided in some embodiments of the present invention;

[0036] Figure 3 This is a schematic block diagram of the human body sensing module provided in some embodiments of the present invention;

[0037] Figure 4 This is a schematic block diagram of the human body sensing module provided in some embodiments of the present invention;

[0038] Figure 5 This is a schematic diagram of the structure of a human body sensing module provided in some embodiments of the present invention;

[0039] Figure 6 This is a schematic diagram of the structure of a human body sensing module provided in some embodiments of the present invention;

[0040] Figure 7 This is a schematic diagram showing the human body sensing module in the first mounting position according to some embodiments of the present invention;

[0041] Figure 8 This is a schematic diagram showing the human body sensing module in the second mounting position according to some embodiments of the present invention;

[0042] Figure 9 This is a schematic diagram showing the human body sensing module located in the third mounting position according to some embodiments of the present invention;

[0043] Figure 10 A flowchart of a human body sensing module provided in some embodiments of the present invention;

[0044] Figure 11 A flowchart of a human body sensing module provided in some embodiments of the present invention;

[0045] Figure 12 A flowchart of a human body sensing module provided in some embodiments of the present invention;

[0046] Figure 13 A flowchart of a human body sensing module provided in some embodiments of the present invention;

[0047] Figure 14 This is a schematic diagram of the structure of an air conditioning device provided in some embodiments of the present invention;

[0048] Figure 15 This is a schematic block diagram of the structure of an air conditioning device provided in some embodiments of the present invention;

[0049] In the picture:

[0050] 10. Human body sensing module; 11. Infrared sensor; 12. Radar sensor; 13. Reader / writer; 14. Holder; 15. Processor; 16. PCB circuit board; 17. Tag; 17-1. First tag; 17-2. Second tag; 17-3. Third tag; 18-1. First holding surface; 18-2. Second holding surface; 18-3. Third holding surface; 19. Limiting structure; 20. Indoor unit; 21. Indoor controller; 22. Front panel; 23. Wired controller;

[0051] P1, first mounting position; P2, second mounting position; P3, third mounting position. Detailed Implementation

[0052] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0054] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0055] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0058] For human body sensing modules with manual adjustment mechanisms, when determining the installation reference angle based on the actual installation environment, installers need to perform compensation adjustments, which has a high rate of misoperation and the user cannot adjust it himself. One or more embodiments of this application provide a human body sensing module.

[0059] like Figure 1 As shown, in one or more embodiments of this application, the human body sensing module 10 uses the infrared sensor 11 to capture the infrared radiation of the human body and detect the presence or movement of the human body.

[0060] like Figure 2 As shown, in one or more embodiments of this application, the human body sensing module 10 uses a combination of infrared sensor 11 and radar sensor 12 to capture infrared radiation from the human body and detect the presence or movement of the human body.

[0061] In one or more embodiments of this application, the human body sensing module 10 can be applied to smart home appliances such as air conditioners to detect the presence or movement of a human body. Based on the detection results, the smart home appliances can intelligently control their operation.

[0062] In one or more embodiments of this application, the human body sensing module 10 can be applied in monitoring equipment to help security personnel see the presence or movement of people in areas with low light or poor visibility. For example, the human body sensing module 10 can operate in dark environments or in smoky environments.

[0063] In one or more embodiments of this application, the human body sensing module 10 can also be applied to industrial equipment to monitor personnel safety in the industrial production environment and prevent accidents.

[0064] On the one hand, the human body sensor module 10 needs to be installed at a relatively high position, typically between 2.5 and 3 meters. Within this height range, the human body sensor module 10 can cover a larger area with relatively less obstruction from furniture and obstacles, and controllable blind spots, thus effectively detecting human bodies and their movement. On the other hand, the detection range and coverage angle of the human body sensor module 10 are directly related to its installation reference angle. The detection range of the human body sensor module 10 refers to the maximum distance at which it can detect the presence of a human body. Generally speaking, the higher the installation, the larger the detection range. The coverage angle of the human body sensor module 10 refers to the spatial range that it can effectively cover within its detection range, which can be considered as a three-dimensional space based on the viewing angle. If the human body sensor module 10 is installed vertically downwards, the effectively covered spatial range is a circular or elliptical area; if there is a certain tilt angle, the effectively covered spatial range will shift accordingly. Therefore, a reasonable setting of the installation reference angle is necessary to ensure that the human body sensor module 10 can focus on the desired area of ​​interest.

[0065] In one or more embodiments of this application, the mounting reference angle of the human body sensing module 10 can be manually adjusted so that the detection range and coverage angle of the human body sensing module 10 can be reasonably matched with the actual application environment.

[0066] Exemplary examples show that in one or more embodiments of this application, the human body sensing module 10 is spherical or hemispherical. The human body sensing module 10 can be rotated in different directions to adjust the mounting reference angle.

[0067] In one or more embodiments of this application, the human body sensing module 10 can automatically identify the installation reference angle after manual adjustment.

[0068] like Figures 3 to 5 As shown, in one or more embodiments of this application, in addition to the infrared sensor 11 as a detection element, or a combination of the infrared sensor 11 and the radar sensor 12, the human body sensing module 10 also includes a reader / writer 13 and a holder 14.

[0069] In one or more embodiments of this application, the reader 13 rotates or moves as the mounting reference angle changes.

[0070] In one or more embodiments of this application, the human body sensing module 10 includes a system-on-a-chip.

[0071] In one or more embodiments of this application, the system-on-a-chip includes components such as a processor 15, an input / output interface, a communication interface, and a power management chip. The input / output interface is communicatively connected to sensors (e.g., infrared sensor 11, radar sensor 12, or a combination of infrared sensor 11 and radar sensor 12) to enable bidirectional communication and data acquisition. The processor 15 processes signals from the input / output interface and interacts with external devices through the communication interface, outputting the detection results of the human body sensing module 10 to the external devices.

[0072] In one or more embodiments of this application, the on-chip system may also include a separately configured signal processing module to process signals from the input / output interface.

[0073] In one or more embodiments of this application, the communication interface includes, but is not limited to, interfaces that support wireless communication protocols such as Bluetooth, Wi-Fi, Zigbee, and LoRa.

[0074] In one or more embodiments of this application, the communication interface includes, but is not limited to, an interface that supports wired communication protocols such as UART.

[0075] In one or more embodiments of this application, the reader 13 is communicatively connected to the processor 15 via an input / output interface.

[0076] In one or more embodiments of this application, the system-on-chip further includes a power management unit.

[0077] In one or more embodiments of this application, the reader 13, the system-on-a-chip, the infrared sensor 11, the radar sensor 12, or a combination of the infrared sensor 11 and the radar sensor 12 are integrated on the same PCB circuit board 16. When the human body sensing module 10 is moved, the PCB circuit board 16 rotates, and the reader 13 rotates along with the human body sensing module 10, that is, the reader 13 rotates with the change of the mounting reference angle.

[0078] In one or more embodiments of this application, depending on the specific application scenario, the reader 13 is connected to the processor 15 via a wireless communication interface. The reader 13 can be set up independently of the on-chip system and linked with the on-chip system through a transmission mechanism. For example, the reader 13 can move as the human body sensing module 10 rotates, that is, it moves as the mounting reference angle changes. The transmission mechanism can be a screw drive, a rack and pinion drive, a linkage drive, or a combination of multiple transmission mechanisms to convert rotary motion into linear motion.

[0079] In one or more embodiments of this application, the retainer 14 is correspondingly disposed with the reader 13. A plurality of tags 17 are disposed on the retainer 14.

[0080] In one or more embodiments of this application, a plurality of tags 17 are distributed along the rotation direction of the reader 13.

[0081] In one or more embodiments of this application, the distribution range of multiple tags 17 covers the rotation path of the reader 13.

[0082] In one or more embodiments of this application, a plurality of tags 17 are distributed along the moving direction of the reader 13.

[0083] In one or more embodiments of this application, the distribution range of multiple tags 17 covers the movement path of the reader 13.

[0084] In one or more embodiments of this application, the position, ID, and orientation angle of a plurality of tags 17 are pre-stored.

[0085] In one or more embodiments of this application, when the mounting reference angle of the human body sensing module 10 is manually adjusted, the reader 13 identifies its current position based on the unique identification information of the tag 17 it has read, determines the mounting reference angle of the human body sensing module 10 based on the current position of the reader 13, and outputs the detection result based on the mounting reference angle.

[0086] For example, a mapping table corresponding to the installation reference angle and the compensation value can be pre-configured. The compensation value of the response is determined according to the determined installation reference angle and the mapping table, and the compensation value is used to compensate the detection result of the human body sensing module 10, and the corresponding detection result is output.

[0087] In one or more embodiments of this application, other algorithms can also be used to compensate for the detection results based on the installation reference angle.

[0088] In one or more embodiments of this application, when the mounting reference angle of the human body sensing module 10 is manually adjusted, the reader 13 identifies the rotation angle of the reader 13 based on the unique identification information of the tag 17 it reads, determines the mounting reference angle of the human body sensing module 10 based on the rotation angle of the reader 13, and outputs the detection result based on the mounting reference angle.

[0089] For example, during the manual adjustment of the mounting reference angle of the human body sensing module 10, the reader 13 reads the unique identification information of one or more tags 17. Based on the pre-stored tag 17 positions, the rotation angle of the reader 13 can be obtained. For example, the rotation angle of the reader 13 can be identified using triangulation or other geometric algorithms. Further, based on the rotation angle of the reader 13 and its initial installation position, the mounting reference angle of the human body sensing module 10 is determined, and the detection results can be compensated based on this mounting reference angle.

[0090] In one or more embodiments of this application, when the mounting reference angle of the human body sensing module 10 is manually adjusted, the reader 13 identifies the current position and rotation angle of the reader 13 based on the unique identification information of the tag 17 it reads, determines the mounting reference angle of the human body sensing module 10 based on the current position and rotation angle of the reader 13, and outputs the detection result based on the mounting reference angle.

[0091] For example, the positions and angles of the multiple tags 17 on the retainer 14 are known. During the manual adjustment of the mounting reference angle of the human body sensing module 10, the reader 13 actively scans the tags 17 on the retainer 14, reading the unique identification information of one or more tags 17. Based on the positions of one or more tags 17, the current position and rotation angle of the reader 13 can be further identified, determining the mounting reference angle of the human body sensing module 10. Based on this mounting reference angle, the detection results can be compensated.

[0092] The tags 17 on the retainer 14 are distributed along the rotation or movement direction of the reader 13, forming a positioning reference. The operator installs the human body sensing module 10 at a predetermined position and manually adjusts the installation reference angle according to the actual situation, so that the detection range and coverage angle of the human body sensing module 10 match the actual usage area. After adjustment, the reader 13 automatically scans nearby tags 17. The processor 15 identifies the current position and / or rotation angle of the reader 13 based on the unique identification information of the tags 17 read by the reader 13, and determines the actual installation reference angle of the human body sensing module 10 based on the current position and / or rotation angle of the reader 13, and outputs the detection result based on the installation reference angle.

[0093] This application establishes a positioning reference through tag 17, and reads the unique identification information of tag 17 through the linked reader 13 to automatically identify the current position and / or rotation angle of human body sensing module 10, thereby determining its actual installation reference angle. This reduces human intervention, avoids the problem of mismatch between the actual installation reference angle and the control program, ensures that the detection range and coverage angle of human body sensing module 10 match the actual application scenario, and improves installation efficiency and reliability.

[0094] In one or more embodiments of this application, the human body sensing module 10 generates an adjustment amount of the installation reference angle based on the actual installation reference angle to compensate for the detection range and / or coverage angle of the human body sensing module 10.

[0095] In one or more embodiments of this application, the human body sensing module 10 can be manually adjusted to several preset installation positions to operate according to the actual installation reference angle corresponding to the preset installation position.

[0096] like Figure 6 As shown, in the horizontal direction, the human body sensing module 10 can be manually adjusted to the first mounting position P1, the second mounting position P2, and the third mounting position P3.

[0097] In one or more embodiments of this application, the human body sensing module 10 is held and limited in the first mounting position P1, the second mounting position P2 and the third mounting position P3 by the limiting structure 19.

[0098] For example, with the operator as the reference, the first mounting position P1 is on the left, the second mounting position P2 is in the middle, and the third mounting position P3 is on the right. The human body sensing module 10 is manually moved between the first mounting position P1, the second mounting position P2, and the third mounting position P3, as shown below. Figures 7 to 9 As shown.

[0099] In one or more embodiments of this application, the human body sensing module 10 located at the first mounting position P1 outputs the detection result according to the first actual mounting reference angle.

[0100] In one or more embodiments of this application, the human body sensing module 10 located at the second mounting position P2 outputs the detection result according to the second actual mounting reference angle.

[0101] In one or more embodiments of this application, the human body sensing module 10 located at the third mounting position P3 outputs the detection result according to the third actual mounting reference angle.

[0102] In one or more embodiments of this application, a program and algorithm for compensating based on a first actual installation reference angle and outputting detection results are pre-stored and can be called at any time.

[0103] In one or more embodiments of this application, a program and algorithm for compensating based on a second actual installation reference angle and outputting detection results are pre-stored and can be called at any time.

[0104] In one or more embodiments of this application, a program and algorithm for compensating based on a third actual installation reference angle and outputting detection results are pre-stored and can be called at any time.

[0105] In one or more embodiments of this application, the retainer 14 has a plurality of retaining surfaces. The retaining surfaces are configured to correspond to preset installation positions. A label 17 is provided on each retaining surface. Since the positions of the retaining surfaces are fixed, the positions of the labels 17 are also fixed.

[0106] In one or more embodiments of this application, the retainer 14 is configured as a housing. The retainer 14 is detachably disposed on the outside of the PCB circuit board 16 and located on the side away from the infrared sensor 11 probe. A separate cavity is formed in the retainer 14, in which the PCB circuit board 16, which integrates the reader / writer 13, can rotate.

[0107] In one or more embodiments of this application, the retainer 14 is a non-closed polyhedron with an opening, such as... Figure 5 As shown.

[0108] In one or more embodiments of this application, the retainer 14 may also be designed as a support.

[0109] In one or more embodiments of this application, corresponding to the first mounting position P1, the second mounting position P2, and the third mounting position P3, the retainer 14 has a first retaining surface 18-1, a second retaining surface 18-2, and a third retaining surface 18-3. The first retaining surface 18-1 corresponds to the first mounting position P1, the second retaining surface 18-2 corresponds to the second mounting position P2, and the third retaining surface 18-3 corresponds to the third mounting position P3. A first label 17-1 is provided on the first retaining surface 18-1, a second label 17-2 is provided on the second retaining surface 18-2, and a third label 17-3 is provided on the third retaining surface 18-3.

[0110] Upon completion of installation, the reader 13 identifies the unique identifier information of the first tag 17-1 on the first holding surface 18-1, identifies the current position of the reader 13 based on the position of the first tag 17-1, and determines that the human body sensing module 10 is located at the first mounting position P1 based on the current position of the reader 13. The human body sensing module 10 located at the first mounting position P1 outputs the detection result according to the first actual installation reference angle. The reader 13 also identifies the unique identifier information of the second tag 17-2 on the second holding surface 18-2, identifies the current position of the reader 13 based on the position of the second tag 17-2, and determines the current position of the reader 13 based on the first actual installation reference angle. Based on the current position of the reader 13, the human body sensing module 10 is determined to be located at the second mounting position P2. The human body sensing module 10 at the second mounting position P2 outputs the detection result according to the second actual mounting reference angle. The reader 13 identifies the unique identification information of the third tag 17-3 on the third holding surface 18-3, identifies the current position of the reader 13 based on the position of the third tag 17-3, and determines that the human body sensing module 10 is located at the third mounting position P3. The human body sensing module 10 at the third mounting position P3 outputs the detection result according to the third actual mounting reference angle. The human body sensing module 10 calls a pre-stored program according to its current preset mounting position to output the corresponding detection result.

[0111] In one or more embodiments of this application, an adjustment amount of the installation reference angle is generated based on a preset installation position in a pre-stored program to compensate for the detection range and / or coverage angle of the human body sensing module 10.

[0112] In one or more embodiments of this application, when the human body sensing module 10 is manually adjusted to one of the preset installation positions, there is one and only one tag 17 facing the reader 13, the distance between the tag 17 and the reader 13 is minimal, and the reader 13 can only read the unique identification information of one tag 17.

[0113] In one or more embodiments of this application, each retaining surface of the retainer 14 is provided with a groove, and the tag 17 is placed in the groove to ensure that the reader 13 can only read the unique identification information of one tag 17.

[0114] In one or more embodiments of this application, a partition is provided on each holding surface of the holder 14 to isolate the tag 17, so as to ensure that the reader 13 can only read the unique identification information of one tag 17.

[0115] Human body sensing module 10 performs as follows Figure 10 The following steps are shown:

[0116] Step S101: The human body sensor module 10 is powered on and initialized. The operator manually adjusts the installation reference angle of the human body sensor module 10 according to the actual installation scenario. For example, if the human body sensor module 10 is located in the upper corner of the room, the operator can move the human body sensor module 10 so that it faces the center of the room.

[0117] Step S102: Obtain the unique identification information of tag 17 read by reader 13.

[0118] Step S103: Determine whether it is the unique identifier information of the first tag 17-1;

[0119] Step S104: If it is the unique identification information of the first tag 17-1, then it is assumed that the human body sensing module 10 is in the first installation position P1, and the detection result is output according to the first actual installation reference angle.

[0120] Step S105: If it is not the unique identifier of the first tag 17-1, then determine whether it is the unique identifier of the second tag 17-2;

[0121] Step S106: If it is the unique identification information of the second tag 17-2, then it is assumed that the human body sensing module 10 is in the second mounting position P2, and the detection result is output according to the second actual mounting reference angle.

[0122] Step S107: If it is not the unique identification information of the second tag 17-2, it is presumed to be the unique identification information of the third tag 17-3. The human body sensing module 10 is presumed to be in the third mounting position P3, and the detection result is output according to the third actual mounting reference angle.

[0123] In one or more embodiments of this application, after outputting the detection result based on the preset installation location, the human body sensing module 10 is configured to cause the reader 13 to enter a sleep mode.

[0124] In one or more embodiments of this application, the reader 13 is an NFC reader 13, the tag 17 is an NFC tag 17, and the NFC tag 17 has a unique identifier (UID).

[0125] In one or more embodiments of this application, the power management pin of the NFC reader 13 is connected to one input / output pin of the processor 15.

[0126] In one or more embodiments of this application, the processor 15 outputs a low-level signal or a high-level signal to the power management pin of the NFC reader 13, causing the NFC reader 13 to enter a sleep state.

[0127] In one or more embodiments of this application, the processor 15 sends a specific instruction to the NFC reader 13 to cause the NFC reader 13 to enter a sleep state, such as a low-level pulse.

[0128] In one or more embodiments of this application, after outputting the detection result based on the installation reference angle corresponding to the preset installation position, the human body sensing module 10 is configured to start a set waiting period; determine whether the unique identification information identified by the reader 13 has changed within the set waiting period; and, if the unique identification information identified by the reader 13 has not changed within the set waiting period, enable the reader 13 to enter a sleep mode.

[0129] Exemplarily, in one or more embodiments of this application, the human body sensing module 10 is configured to perform as follows: Figure 11 The steps are shown.

[0130] Step S201: The human body sensing module 10 outputs the detection result based on the installation reference angle corresponding to the preset installation position.

[0131] Step S202: Start setting the waiting period.

[0132] Step S203: Determine whether the unique identification information recognized by the reader 13 has changed within the set waiting period.

[0133] Step S204: If the unique identification information recognized by the reader 13 does not change within the set waiting period, the reader 13 is put into sleep mode.

[0134] Step S205: If the unique identification information identified by the reader 13 changes within the set waiting period, the output detection result is stopped and the current position of the reader 13 is re-identified.

[0135] Upon entering sleep mode, the NFC reader 13 ceases to generate radio frequency fields, and communication with the tag 17 is disconnected. The human body sensing module 10 continues to output detection results based on the installation reference angle corresponding to the preset installation position. It retains operation in the lowest power consumption mode, detecting the presence and movement of people in the environment in real time.

[0136] In one or more embodiments of this application, the human body sensing module 10 is further configured to monitor changes in active heat sources after the reader 13 enters a sleep mode, and to presume the existence of an abnormal active heat source and activate the reader 13 when the changes in active heat sources meet preset abnormal active heat source presumption conditions.

[0137] In one or more embodiments of this application, the active heat source is infrared radiation emitted by the human body.

[0138] In practical applications, the human body sensing module 10 is installed at a height of 2.5 to 3 meters to achieve long-distance detection. The human body sensing module 10 detects a stable background heat source, such as a wall, furniture, or the ground. When a human body enters the detection area of ​​the human body sensing module 10, because the human body temperature is higher than the ambient temperature, the infrared radiation emitted by the human body will change the background thermal radiation, thus detecting the presence of the human. The human body can be considered an active heat source. Considering human height, under normal working conditions, the distance between the human body, the human body sensing module 10, and the active heat source is more than 1 meter.

[0139] If the user or operator needs to readjust the installation reference angle, the distance between the human body sensing module 10 and the active heat source will significantly decrease. During operation, the operator's or user's hand may partially or completely cover the probe of the infrared sensor 11 in the human body sensing module 10. This mode can be reasonably considered as the presence of an abnormal active heat source. Based on this, the intention to manually adjust the installation reference angle can be identified, and automatic activation can be achieved.

[0140] The conditions for inferring an abnormal heat source include at least an increasing trend in the detection signal of the active heat source.

[0141] At a distance, the infrared sensor 11 can stably detect the thermal radiation or motion signals of a human body. The signal strength is low, but sufficient to detect the presence or movement of a human body. As a human body gradually approaches the human body sensing module 10, the thermal radiation received by the infrared sensor 11 increases significantly and rapidly, and the activity heat source detection signal output by the infrared sensor 11 to the processor 15 also increases significantly and rapidly. Moreover, if during manual adjustment, the hand completely covers the infrared sensor 11p, the infrared sensor 11 will adapt to the thermal radiation of the hand, forming a new and stable background heat source, and will no longer output an activity heat source detection signal.

[0142] In one or more embodiments of this application, the presumption condition for an abnormal heat source activity can be set as an increasing trend in the active heat source detection signal. For example, if the active heat source detection signal rapidly increases within a certain time period, it is presumed that the abnormal heat source activity condition is met. For instance, a sliding window averaging algorithm can be used to identify a rapid increase in the active heat source detection signal within a certain time period: the active heat source detection signal is divided into multiple sliding windows, the average value within each window is calculated, and by comparing the average values ​​of adjacent windows, a rapid increase in the active heat source detection signal within a certain time period can be identified.

[0143] In one or more embodiments of this application, the presumed conditions for abnormal heat source activity are:

[0144] The distance between the active heat source and the human body sensing module 10 decreases;

[0145] The area of ​​the active heat source is increasing;

[0146] The area of ​​the active heat source exceeds a preset area threshold; and

[0147] The active heat source detection signal shows an increasing trend.

[0148] In one or more embodiments of this application, the human body sensing module 10 is further configured to collect the distance between the active heat source and the human body sensing module 10 and establish a distance time series after the reader 13 enters the sleep mode; determine whether there are continuous subsequences in the distance time series that meet the decreasing condition; if the duration of the subsequence that meets the decreasing condition meets the first preset duration condition, it is presumed that the distance between the active heat source and the human body sensing module 10 is decreasing.

[0149] In one or more embodiments of this application, the human body sensing module 10 is further configured to perform the following: Figure 12 The steps are shown.

[0150] Step S301: Collect the distance between the active heat source and the human body sensing module 10 and establish a distance time series. For example, based on timestamps, the distance time series could be:

[0151] t1: 2.5 meters; t2: 2.4 meters; t3: 2.3 meters; t4: 2.2 meters; t5: 2.1 meters.

[0152] Step S302: Find a continuous decreasing subsequence of distances. For example, in the example above, the distance between 2.5 meters and 2.1 meters decreases gradually, forming a continuous decreasing subsequence: 2.5 meters, 2.4 meters, 2.3 meters, 2.2 meters, 2.1 meters.

[0153] Step S303: Further determine whether the duration of the distance-decreasing subsequence meets the first preset duration condition. That is, whether the time period from t1 to t5 meets the first preset duration condition. If the first preset duration condition is met, it is considered that the operator or user intends to approach the human body sensing module 10.

[0154] Step S304: If the duration of the distance decreasing subsequence meets the first preset duration condition, it is assumed that the distance between the active heat source and the human body sensing module 10 is decreasing, the active heat source is approaching the human body sensing module 10, and there may be an abnormal heat source.

[0155] Step S305: If the duration of the distance decreasing subsequence does not meet the first preset duration condition, ignore this change and continue to detect subsequent distance time series.

[0156] In one or more embodiments of this application, the human body sensing module 10 is further configured to: after detecting that the activity heat source detection signal shows an increasing trend, determine whether there are continuous subsequences in the distance time series that meet the decreasing condition, so as to reduce the overall computational load.

[0157] In one or more embodiments of this application, the human body sensing module 10 is further configured to: after the reader 13 enters sleep mode, collect the active heat source area and establish an active heat source area time series; determine whether there are continuous subsequences in the active heat source area series that meet the increasing condition; if the duration of the subsequence that meets the increasing condition meets the second preset duration condition, then it is presumed that the active heat source area is increasing.

[0158] In one or more embodiments of this application, the human body sensing module 10 is further configured to perform the following: Figure 13 The steps are shown.

[0159] Step S401: Collect the area of ​​the active heat source and establish a time series of the active heat source area.

[0160] Step S402: Find a continuous subsequence with increasing area.

[0161] Step S403: Further determine whether the duration of the area-increasing subsequence meets the second preset duration condition.

[0162] Step S404: If the duration of the area-increasing subsequence meets the second preset duration condition, it is assumed that the area of ​​the active heat source is increasing, the active heat source is approaching the human body sensing module 10, and there may be an abnormal heat source.

[0163] Step S405: If the duration of the area-increasing subsequence does not meet the second preset duration condition, ignore this change and continue to detect the subsequent activity heat source area time series.

[0164] In one or more embodiments of this application, the human body sensing module 10 is further configured to: after estimating that the distance between the active heat source and the human body sensing module 10 decreases, further determine whether there is a continuous area increasing subsequence in the heat source area time series.

[0165] In one or more embodiments of this application, the distance between the estimated active heat source and the human body sensing module 10 is decreased, and it is further estimated whether the area of ​​the active heat source exceeds a preset area threshold.

[0166] When the distance between the active heat source and the human body sensing module 10 decreases, the area of ​​the active heat source increases and exceeds a preset area threshold, and the active heat source detection signal shows an increasing trend, it is presumed that the abnormal active heat source presumption condition is met.

[0167] In one or more embodiments of this application, an air conditioning device is provided.

[0168] In one or more embodiments of this application, the air conditioning device may be an air conditioner.

[0169] Air conditioners execute a refrigeration cycle using a compressor, condenser, throttling element, and evaporator. The refrigeration cycle involves a series of processes, including compression, condensation, expansion, and evaporation, to cool or heat an indoor space.

[0170] Low-temperature, low-pressure refrigerant enters the compressor, which compresses it into a high-temperature, high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0171] A throttling element (taking an electronic expansion valve as an example) causes the high-temperature, high-pressure liquid refrigerant condensed in the condenser to expand into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant that has expanded in the electronic expansion valve, returning the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioner regulates the temperature of the indoor space.

[0172] The outdoor unit of an air conditioner refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit 20 of the air conditioner includes the indoor heat exchanger, and an electronic expansion valve can be provided in either the indoor unit 20 or the outdoor unit.

[0173] The indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0174] In one or more embodiments of this application, the air conditioning device may be a fresh air device. The fresh air device includes a filter and a fan for removing particulate matter and harmful gases from the air while introducing fresh air to maintain indoor air quality.

[0175] In one or more embodiments of this application, the air conditioning device may be a total heat exchanger.

[0176] Total heat exchangers can transfer heat between intake and exhaust air, achieving energy recovery and thus pre-regulating the temperature of fresh air entering a building. This reduces the energy needed for heating or air conditioning, lowering energy consumption and saving on energy costs. Total heat exchangers can also regulate humidity when appropriate, helping to maintain indoor air comfort and quality.

[0177] like Figure 14 and Figure 15 As shown, in one or more embodiments of this application, the air conditioning device includes an indoor unit 20. The indoor unit 20 may be a wall-mounted indoor unit, a floor-standing indoor unit, a ducted indoor unit, a ceiling-mounted indoor unit, etc.

[0178] The air conditioning unit includes a human body sensor module 10. The human body sensor module 10 is used to detect the presence or movement of a human body in the air-conditioned room. The human body sensor module 10 is communicatively connected to the indoor controller 21 in the indoor unit 20, for example, via a communication connection based on the UART communication protocol.

[0179] The human body sensor module 10 is embedded in the indoor unit 20, for example, in the front panel 22 of the indoor unit 20. The mounting reference angle of the human body sensor module 10 can be manually adjusted.

[0180] The human body sensing module 10 includes: a reader 13, which rotates or moves as the mounting reference angle changes; a retainer 14, which is correspondingly arranged with the reader 13; and multiple tags 17 are arranged on the retainer 14 and distributed along the rotation direction or movement direction of the reader 13.

[0181] The human body sensing module 10 is configured to identify the current position and / or rotation angle of the reader 13 based on the unique identification information of the tag 17 read by the reader 13; determine the installation reference angle of the human body sensing module 10 based on the current position and / or rotation angle of the reader 13; and output the detection result based on the installation reference angle.

[0182] The air conditioning equipment operates based on the detection results. For example, it operates based on the commands received from the wired controller 23 and the detection results, such as executing an intelligent control mode that allows the airflow to follow the person or avoid blowing on the person.

[0183] In one or more embodiments of this application, the retainer 14 may be disposed in the housing of the indoor unit 20.

[0184] In one or more embodiments of this application, the retainer 14 may be a bracket formed in the indoor unit 20.

[0185] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0186] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A human body sensing module for detecting the presence or movement of a human body; the mounting reference angle of the human body sensing module can be manually adjusted. Its features are, include: The reader / writer rotates or moves as the mounting reference angle changes; and A retainer is provided corresponding to the reader / writer; multiple tags are disposed on the retainer and distributed along the rotation or movement direction of the reader / writer; The human body sensing module is configured to identify the current position and / or rotation angle of the reader based on the unique identification information of the tag read by the reader; determine the installation reference angle of the human body sensing module based on the current position and / or rotation angle of the reader; and output the detection result based on the installation reference angle.

2. The human body sensing module according to claim 1, characterized in that: The human body sensing module can be manually adjusted to several preset installation positions to operate according to the installation reference angle corresponding to the preset installation position; The retainer has a plurality of retaining surfaces, which are configured to correspond to the preset installation positions; a label is provided on the retaining surface. The human body sensing module is configured to identify the current position of the reader based on the unique identification information of the tag on the corresponding holding surface read by the reader; and based on the current position of the reader, determine the preset installation position of the human body sensing module, and output the detection result based on the installation reference angle corresponding to the preset installation position.

3. The human body sensing module according to claim 2, characterized in that: After outputting the detection result based on the installation reference angle corresponding to the preset installation position, the human body sensing module is configured to put the reader into sleep mode.

4. The human body sensing module according to claim 3, characterized in that: After outputting the detection result based on the installation reference angle corresponding to the preset installation position, the human body sensing module is configured to start a set waiting period; determine whether the unique identification information identified by the reader has changed within the set waiting period; and, if the unique identification information identified by the reader has not changed within the set waiting period, enable the reader to enter sleep mode.

5. The human body sensing module according to claim 3, characterized in that: The human body sensing module is also configured to monitor changes in active heat sources after the reader enters sleep mode, and to presume the existence of an abnormal active heat source and activate the reader when the changes in active heat sources meet preset abnormal active heat source estimation conditions. The reader identifies its current position again based on the unique identification information of the tag on the corresponding holding surface; and based on the current position of the reader, determines the preset installation position of the human body sensing module, and outputs the detection result based on the installation reference angle corresponding to the preset installation position. The abnormal activity heat source inference conditions include at least the fact that the activity heat source detection signal shows an increasing trend, and the activity heat source is infrared radiation emitted by the human body.

6. The human body sensing module according to claim 5, characterized in that: The human body sensing module is also configured to monitor changes in active heat sources after the reader enters sleep mode, and when the changes in active heat sources meet preset abnormal active heat source estimation conditions, it will presume the existence of an abnormal active heat source, stop outputting detection results based on the installation reference angle corresponding to the preset installation position, and activate the reader.

7. The human body sensing module according to claim 6, characterized in that: The conditions for estimating the abnormal activity heat source are as follows: The distance between the active heat source and the human body sensing module decreases. The area of ​​the active heat source is increasing; The area of ​​the active heat source exceeds a preset area threshold; and The active heat source detection signal shows an increasing trend.

8. The human body sensing module according to claim 7, characterized in that: The human body sensing module is also configured to: After the reader enters sleep mode, the distance between the active heat source and the human body sensing module is collected and a distance time series is established; it is determined whether there are continuous subsequences in the distance time series that meet the decreasing condition. If the duration of the subsequence that meets the decreasing condition meets the first preset duration condition, it is presumed that the distance between the active heat source and the human body sensing module is decreasing.

9. The human body sensing module according to claim 7, characterized in that: The human body sensing module is also configured to: After the reader enters sleep mode, the active heat source area is collected and a time series of the active heat source area is established; it is determined whether there are continuous subsequences in the active heat source area time series that meet the increasing condition. If the duration of the subsequence that meets the increasing condition meets the second preset duration condition, the active heat source area is presumed to be increasing.

10. Air conditioning equipment, comprising: Indoor unit; and A human body sensing module is used to detect the presence or movement of a human body in an air-conditioned room; the human body sensing module is embedded in the indoor unit, and the installation reference angle of the human body sensing module can be manually adjusted. The human body sensing module is characterized by comprising: The reader / writer rotates or moves as the mounting reference angle changes; and A retainer is provided corresponding to the reader / writer; multiple tags are disposed on the retainer and distributed along the rotation or movement direction of the reader / writer; The human body sensing module is configured to identify the current position and / or rotation angle of the reader based on the unique identification information of the tag read by the reader; determine the installation reference angle of the human body sensing module based on the current position and / or rotation angle of the reader; and output the detection result based on the installation reference angle. The air conditioning equipment operates based on the detection results.

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