Direction triggering method of spatial tag based on ultra-wideband signal and related device

Abstract

Embodiments of the present application provide a pointing triggering method of a spatial tag based on an ultra-wideband signal and related equipment, which is used to realize high sensitivity, low power consumption, and high expansibility of equipment deployment. The method of the embodiments of the present application comprises: deploying at least one tag equipment with a UWB signal transmitting function, the tag equipment being configured to broadcast a UWB signal at a preset period, the UWB signal at least containing identification information of the tag equipment; when a receiving equipment receives the UWB signal broadcast by at least one tag equipment, based on the received UWB signal, an angle of arrival of the tag equipment relative to the receiving equipment is calculated to determine a pointing relationship between the receiving equipment and each tag equipment according to the angle of arrival; a target tag equipment is selected according to the pointing relationship, and a device control operation of an electrical equipment associated with the target tag equipment is triggered based on the identification information of the target tag equipment.

Description

Technical Field

[0001] This application relates to the field of smart Internet of Things, and in particular to a pointing triggering method and related equipment for spatial tags based on ultra-wideband signals. Background Technology

[0002] In the fields of smart homes and the Internet of Things (IoT), ultra-wideband (UWB) technology is often used for positioning and communication to achieve precise interaction and directional control between devices. Traditional point-and-trigger solutions typically require both the tag device (such as a remote control or mobile phone) and the target device (such as a home appliance) to have complete UWB transceiver capabilities, necessitating bidirectional communication for angle measurement and interaction. This approach not only results in high tag power consumption, system complexity, and increased costs, but also requires pre-pairing of devices or their inclusion in the same ecosystem, limiting its flexibility and scalability. Furthermore, existing solutions often rely on auxiliary technologies such as Bluetooth for pairing, but these cannot provide spatial pointing information, increasing interaction latency and operational complexity. Summary of the Invention

[0003] This application provides a pointing triggering method and related equipment for spatial tags based on ultra-wideband signals, which can be used to achieve high-sensitivity, low-power, and highly scalable equipment deployment.

[0004] The first aspect of this application provides a pointing triggering method for spatial tags based on ultra-wideband signals, including:

[0005] Deploy at least one tag device with UWB signal transmission capability, the tag device being configured to broadcast the UWB signal at a preset period, the UWB signal containing at least the identification information of the tag device;

[0006] When the receiving device receives the UWB signal broadcast by at least one of the tag devices, it calculates the angle of arrival of the tag device relative to the receiving device based on the received UWB signal, so as to determine the directional relationship between the receiving device and each tag device based on the angle of arrival.

[0007] The target tag device is selected according to the pointing relationship, and the device control operation of the electrical equipment associated with the target tag device is triggered based on the identification information of the target tag device.

[0008] Optionally, calculating the angle of arrival of the tag device relative to the receiving device based on the received UWB signal includes:

[0009] The angle of arrival of the UWB signal is measured by the multi-antenna array of the receiving device to obtain the directional information of the tag device.

[0010] Alternatively, the angle between the tag device and the receiving device can be estimated by using the time difference of arrival of the UWB signal.

[0011] Optionally, the method further includes:

[0012] When calculating the angle of arrival, attitude data from the attitude sensor of the receiving device is fused to correct the direction of the pointing relationship.

[0013] Optionally, determining the pointing relationship between the receiving device and each tag device based on the angle of arrival includes:

[0014] By comparing the angles of arrival of each tag device, the tag device with the smallest angle of arrival is determined as the target tag device currently being pointed to by the receiving device.

[0015] Optionally, the step of triggering a device control operation associated with the target tag device based on the identification information of the target tag device includes:

[0016] Based on the pre-stored mapping relationship between tag information and appliance control commands, a control signal is sent to the appliance bound to the target tag device to control the appliance according to the control signal.

[0017] Optionally, the method further includes:

[0018] The receiving device maintains a tag registry; wherein the tag registry is used to record the identification information of each tag device and the control protocol of the electrical equipment associated with each tag device, so as to perform fast matching when a trigger is triggered.

[0019] Optionally, it is characterized in that,

[0020] The tag device is a device module with UWB signal transmission function, but does not include UWB receiving function, and operates on battery power.

[0021] The tag device is a rear-mounted module that is associated with electrical equipment through physical attachment or placement nearby.

[0022] The broadcast period of the UWB signal of the tag device is configurable to balance positioning accuracy and device power consumption.

[0023] The receiving device can be any one of a smartphone, tablet, dedicated remote control, or wearable device, and must have the capability to receive and measure UWB signals.

[0024] A second aspect of this application provides a pointing triggering device for a space tag based on an ultra-wideband signal, comprising:

[0025] A deployment unit is used to deploy at least one tag device with UWB signal transmission function, the tag device being configured to broadcast the UWB signal at a preset period, the UWB signal containing at least the identification information of the tag device;

[0026] The calculation unit is configured to calculate the angle of arrival of the tag device relative to the receiving device based on the received UWB signal when the receiving device receives the UWB signal broadcast by at least one of the tag devices, so as to determine the directional relationship between the receiving device and each tag device based on the angle of arrival;

[0027] The selection unit is used to select a target tag device according to the pointing relationship, and to trigger device control operation of electrical equipment associated with the target tag device based on the identification information of the target tag device.

[0028] The pointing triggering device for a space tag based on an ultra-wideband signal provided in the second aspect of this application is used to execute the pointing triggering method for a space tag based on an ultra-wideband signal described in the first aspect.

[0029] A third aspect of this application provides a computer program product including computer-readable instructions that, when executed on an electronic device, cause the electronic device to implement the pointing triggering method for spatial tags based on ultra-wideband signals as described in the first aspect or any implementation thereof.

[0030] A fourth aspect of this application provides an electronic device, including at least one processor and a memory connected to the processor, wherein:

[0031] The memory is used to store computer programs;

[0032] The processor is used to execute the computer program so that the electronic device can implement the pointing triggering method of space tags based on ultra-wideband signals according to the first aspect or any implementation thereof.

[0033] The fifth aspect of this application provides a computer storage medium carrying one or more computer programs that, when executed by an electronic device, enable the electronic device to implement the pointing triggering method of a spatial tag based on an ultra-wideband signal in the first aspect or any implementation thereof.

[0034] As can be seen from the above technical solutions, the embodiments of this application have the following advantages: The pointing triggering method for spatial tags based on ultra-wideband signals disclosed in this application involves a tag device that periodically broadcasts its own identifier by transmitting only UWB signals. The receiving device determines the pointing relationship based on the signal's angle of arrival, thereby achieving pointing triggering control of associated electrical appliances. Its core effects are: significantly reduced tag power consumption and cost (due to the elimination of the need for receiving functionality); simplified system structure, eliminating the need for bidirectional communication and timing coordination; flexible deployment, allowing for rapid provision of spatial pointing capabilities to traditional electrical appliances as a retrofit module; and strong scalability, supporting simultaneous operation of multiple tags without interference. Overall, it achieves a low-power, low-cost, highly convenient, and highly scalable smart home pointing control solution. Attached Figure Description

[0035] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and elements are not necessarily drawn to scale.

[0036] Figure 1 This is a flowchart illustrating a pointing triggering method for a spatial tag based on an ultra-wideband signal, as disclosed in an embodiment of this application.

[0037] Figure 2 This is a flowchart illustrating another pointing triggering method for spatial tags based on ultra-wideband signals disclosed in an embodiment of this application;

[0038] Figure 3 This is a flowchart illustrating another pointing triggering method for spatial tags based on ultra-wideband signals disclosed in an embodiment of this application;

[0039] Figure 4 This is a flowchart illustrating another pointing triggering method for spatial tags based on ultra-wideband signals disclosed in an embodiment of this application;

[0040] Figure 5 This is a schematic diagram of the structure of a pointing triggering device for a spatial tag based on an ultra-wideband signal, as disclosed in an embodiment of this application.

[0041] Figure 6 This is a schematic diagram of the structure of an electronic device disclosed in an embodiment of this application. Detailed Implementation

[0042] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is for explaining specific embodiments only and is not intended to limit the scope of this application.

[0043] The embodiments of this application will now be described with reference to the accompanying drawings. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

[0044] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

[0045] To address the technical challenges described in the prior art to the greatest extent possible, please refer to [link / reference needed]. Figure 1 , Figure 1 This is a flowchart illustrating a pointing triggering method for a spatial tag based on an ultra-wideband signal, as disclosed in an embodiment of this application. It includes steps 101-103.

[0046] 101. Deploy at least one tag device with UWB signal transmission capability.

[0047] In some embodiments, the tag device is a lightweight module integrating a UWB transmission link, generally requiring only UWB transmission functionality, but the possibility of it also having reception functionality is not excluded. The tag device internally includes a UWB transmission chip, an antenna, a power module (e.g., a battery), and a memory storing its unique identification information (such as an ID number). The tag device periodically broadcasts UWB pulse signals at preset time intervals, the signals modulated with its identification information, thereby balancing positioning accuracy and device power consumption.

[0048] In a preferred embodiment, the tag device can be mounted on an electrical appliance. The electrical appliance can be a household appliance such as a television, air conditioner, lamp, or audio system (or other smart home devices). The tag device is attached to the outer casing or a non-integrated location inside the appliance in a detachable or fixed manner, achieving a "retrofit" deployment.

[0049] 102. When the receiving device receives a UWB signal broadcast by at least one tag device, it calculates the angle of arrival of the tag device relative to the receiving device based on the received UWB signal, so as to determine the directional relationship between the receiving device and each tag device based on the angle of arrival.

[0050] In some embodiments, the receiving device is any one of a smartphone, tablet, dedicated remote control, or wearable device, and has the capability to receive and measure UWB signals. The receiving device includes a UWB receiving antenna array (such as dual or more antennas), a UWB receiving chip, an angle measurement processing unit, and a control unit. The receiving device continuously or on demand scans for UWB signals in the surrounding environment and receives broadcast signals from one or more tag devices. Then, using the UWB signals received by its antenna array, the receiving device calculates the angle of arrival (AoA) of the UWB signal of each tag device relative to the reference direction of the receiving device by measuring the phase difference or time difference of the signal reaching different antennas. Conventional angle measurement algorithms such as Angle of Arrival (AoA) or Time Difference of Arrival (TDoA) can be used. Based on the calculated AoA of the UWB signals of each tag device, the receiving device determines the tag device closest to its current pointing direction. Typically, the tag device with the smallest AoA is considered to be directly in front of the receiving device. The pointing direction can be determined by the user's natural pointing direction while holding the receiving device, or it can be determined using the device's built-in attitude sensors (such as gyroscopes or accelerometers).

[0051] 103. Select the target tag device according to the pointing relationship, and trigger the device control operation of the electrical equipment associated with the target tag device based on the identification information of the target tag device.

[0052] In some embodiments, the receiving device parses the identification information from the broadcast signal of the selected tag device, determines the corresponding target tag device based on a pre-established or real-time acquired "tag identifier - electrical device" mapping relationship, and further determines the electrical device associated with the target tag device. Subsequently, the receiving device sends corresponding control commands (such as switching, adjusting, mode switching, etc.) to the electrical device via infrared, Bluetooth, Wi-Fi, or other wireless communication methods to achieve the function of pointing and controlling.

[0053] This embodiment discloses a pointing triggering method for space tags based on ultra-wideband (UWB) signals. The tag device only needs to periodically transmit UWB signals, eliminating the need for complex receiving links, signal processing, and bidirectional interaction protocols, greatly simplifying hardware design and significantly reducing power consumption. The retrofit tag design eliminates the need to modify the internal structure of home appliances or rely on a unified ecosystem platform, allowing users to add pointing control capabilities to any device at any time. The receiver handles all angle measurement and judgment logic, eliminating the need for complex communication handshakes and timing synchronization with the tag. This results in a simple system architecture, reduced latency from communication interactions, and faster and more direct pointing recognition and control triggering.

[0054] Please see Figure 2 , Figure 2This is a flowchart illustrating another pointing triggering method for spatial tags based on ultra-wideband signals disclosed in an embodiment of this application. It includes steps 201-203.

[0055] 201. The angle of arrival of the UWB signal is measured by the multi-antenna array of the receiving device to obtain the direction information of the tag device.

[0056] In some embodiments, the receiving device is configured with multiple UWB receiving antennas, forming an antenna array. When receiving a UWB signal broadcast by a tag, each antenna, due to its different spatial position, will receive the same signal with a slight phase difference. By comparing the phase difference or time difference of the signals received by these antennas, the receiving device can calculate the signal incident direction, i.e., the angle of arrival of the tag device relative to the receiving device, using a direction-of-arrival estimation algorithm (such as the MUSIC algorithm, the ESPRIT algorithm, or a phase interferometry-based method). This determines the directional information of the tag device relative to the receiving device.

[0057] 202. Angle estimation is performed using the time difference of arrival of UWB signals to estimate the angle between the tag device and the receiving device.

[0058] In some implementations, the receiving device uses its built-in multiple antennas or collaborates with other fixed reference nodes to measure the time difference of UWB signals arriving at different antennas or nodes. Combining this with the known geometric positions of the antennas / nodes, the direction of signal propagation is deduced using hyperbolic positioning principles or triangulation methods, thereby estimating the angle of arrival.

[0059] 203. When calculating the angle of arrival, the attitude data from the attitude sensor of the receiving device is fused to correct the direction of the pointing relationship.

[0060] In some embodiments, the receiving device (such as a smartphone or a dedicated remote control) typically incorporates multiple attitude sensors, such as a three-axis accelerometer, gyroscope, and magnetometer. These sensors output attitude data of the device in real time, such as pitch, roll, and yaw (heading). When calculating the angle of arrival (Angle of Arrival) of the UWB signal, the system simultaneously reads data from these attitude sensors. Subsequently, the raw angle information calculated based on the UWB signal is fused with the receiving device's own attitude angle. For example, the UWB Angle of Arrival can be transformed from the receiving device's own coordinate system to a fixed geographic or room coordinate system, thereby eliminating angular deviations introduced by the user's tilted grip on the device. The fusion algorithm can be a simple coordinate transformation or a more complex filtering algorithm (such as Kalman filtering) to smooth the data and reduce transient errors.

[0061] This embodiment discloses a pointing triggering method for space tags based on ultra-wideband (UWB) signals. The tag retains only the UWB transmission function, eliminating the high-power receiving link and significantly reducing power consumption and maintenance costs. As a simple periodic broadcast source, the tag eliminates the need for complex bidirectional communication protocol stacks and timing control modules, greatly simplifying the hardware structure and significantly reducing costs. The receiver handles all computational tasks, and by fusing UWB angle measurement with its own sensor data, it can quickly and accurately identify the target device the user intends to point to, eliminating the cumbersome pairing and searching steps of traditional solutions.

[0062] Please see Figure 3 , Figure 3 This is a flowchart illustrating another pointing triggering method for spatial tags based on ultra-wideband signals disclosed in an embodiment of this application. It includes step 301.

[0063] 301. Compare the angles of arrival of each tag device and determine the tag device with the smallest angle of arrival as the target tag device that the receiving device is currently pointing to.

[0064] In some embodiments, the receiving device continuously or periodically calculates and acquires the angle of arrival (AHA) information of multiple tag devices in the environment. To determine which tag device it is pointing at, it compares the AHA values ​​of all detectable tags and identifies the tag with the smallest absolute AHA value as the target tag currently being pointed at by the receiving device. Specifically, a unified reference coordinate system needs to be established first. Typically, the zero-degree direction of the AHA is defined based on the normal direction of the receiving device itself or its main pointing axis (such as the long axis of a mobile phone). When the tag device is located to the left or right of this reference direction, the AHA is assigned a negative or positive value, or all values ​​are treated as absolute values. During the comparison, what is actually being compared is the absolute deviation of the AHA from the reference direction. The physical meaning of the minimum angle is that, in the user's natural pointing behavior, the target tag that the receiving device is pointing at has the smallest theoretical angle between its signal incident direction and the device's pointing reference axis. Therefore, selecting the tag with the smallest AHA best matches the user's pointing intention.

[0065] In a preferred embodiment, the receiving device calculates the angle of arrival for each tag. Then, calculate their absolute values. Find the minimum value through simple comparison logic. The tag emitting this UWB signal is then identified as the "target tag device". Furthermore, an angle threshold (e.g.) can be introduced. or Only when the minimum angle of arrival is less than this threshold is it finally determined to be a valid pointing; otherwise, it can be assumed that the receiving device is not explicitly pointing to any tag, thereby avoiding false triggering.

[0066] This embodiment discloses a pointing triggering method based on spatial tags using ultra-wideband signals. Closely adhering to the physical essence of user "pointing" behavior—minimum angle when aligning with a target—it provides an extremely intuitive and responsive judgment standard, making intent recognition more accurate. The core algorithm involves only angle comparison calculations, requiring no complex pattern recognition or machine learning models, resulting in minimal computational overhead. In environments with multiple tag signals, this scheme provides a clear and unique decision criterion (minimum angle), minimizing ambiguity. Users do not need precise alignment (as long as it is within a threshold range), and the system can reliably identify the target, reducing operational difficulty. Simultaneously, combined with threshold judgment, it effectively filters out unintentional or non-pointing actions, improving control reliability and user experience.

[0067] Please see Figure 4 , Figure 4 This is a flowchart illustrating another pointing triggering method for spatial tags based on ultra-wideband signals disclosed in an embodiment of this application. It includes steps 401-402.

[0068] 401. Maintain a tag registry in the receiving device.

[0069] During the initialization of the receiving device (or other control system) or the tag deployment phase, a tag registry (or mapping database) needs to be established. This tag registry records the identification information of each tag device and the control protocol of the electrical equipment associated with each tag device, enabling rapid matching upon triggering. This control protocol can be a non-UWB control protocol.

[0070] In a preferred embodiment, the tag registry stores the unique identifier (ID) of each tag and the association between the corresponding target appliance and its control protocol.

[0071] For example, a record in the tag registry might be: Tag ID: 0xABCD → Target: Living room main light, Control protocol: Infrared, Code: 0xFF00FF. Alternatively, other tags might correspond to different things like: Tag 1 for the TV, Tag 2 for the air conditioner, Tag 3 for the dehumidifier, etc. Details will not be elaborated here.

[0072] 402. Based on the mapping relationship between the pre-stored tag information and the electrical control instructions, send control signals to the electrical equipment bound to the target tag device, so as to control the electrical equipment according to the control signals.

[0073] After the receiving device successfully identifies the target tag according to the aforementioned steps, it extracts the tag's identification information and uses it as a keyword to query the local or cloud-based tag registry to obtain the target appliance information associated with the tag, along with the corresponding control protocol and specific command code. Based on the query results, the system selects the appropriate communication module to initiate control to the target appliance. This is typically a non-UWB, readily available wireless or wired communication method, for example:

[0074] Infrared (IR): Transmits pre-stored infrared remote control codes via an infrared transmitter. Suitable for traditional household appliances such as televisions, air conditioners, and fans.

[0075] Bluetooth: Establishes a Bluetooth connection with the target appliance or its intermediate gateway and sends control commands.

[0076] Wi-Fi: Sends control messages to Wi-Fi devices such as smart sockets and smart light bulbs via local networks or the cloud.

[0077] Through the selected communication channel, specific control commands (such as on / off, brightness adjustment, and temperature increase) are sent to the target electrical appliance to complete the final equipment control operation.

[0078] This embodiment discloses a spatial tag-based pointing triggering method using ultra-wideband (UWB) signals. This solution does not require the controlled appliance to have UWB functionality. Any existing device controllable by infrared, Bluetooth, or Wi-Fi can be incorporated into this "control system" simply by attaching a low-cost UWB tag. This allows the solution to work across appliances of different brands, ecosystems, and technological generations. Complex UWB angle measurement is used for precise user intent identification, while mature and stable traditional wireless communication technologies are used for final control. UWB provides unparalleled spatial resolution, while infrared / Bluetooth / Wi-Fi provides mature, reliable, and low-cost device control links, achieving an optimal balance between performance and cost. Users or installers only need to perform simple logical binding between the tag and the appliance (e.g., scanning the tag and selecting the appliance with a mobile app) to complete the deployment. No hardware modifications or complex network configurations are required for the appliance, significantly reducing the barrier to entry and technical complexity of intelligent transformation.

[0079] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least a portion of the steps or stages of other steps.

[0080] The foregoing described a pointing triggering method for spatial tags based on ultra-wideband signals, as provided in the embodiments of this application, will now be described. The following will describe the apparatus for executing the aforementioned pointing triggering method for spatial tags based on ultra-wideband signals. Please refer to... Figure 5 , Figure 5 This is a schematic diagram of a pointing triggering device for a spatial tag based on an ultra-wideband signal, provided as an embodiment of this application. Figure 5 As shown, the pointing triggering device for the space tag based on ultra-wideband signals includes:

[0081] Deployment unit 501 is used to deploy at least one tag device with UWB signal transmission function. The tag device is configured to broadcast UWB signals at a preset period. The UWB signals contain at least the identification information of the tag device.

[0082] The calculation unit 502 is used to calculate the angle of arrival of the tag device relative to the receiving device based on the received UWB signal when the receiving device receives the UWB signal broadcast by at least one tag device, so as to determine the directional relationship between the receiving device and each tag device based on the angle of arrival.

[0083] Selection unit 503 is used to select a target tag device according to the pointing relationship, and to trigger the device control operation of the electrical equipment associated with the target tag device based on the identification information of the target tag device.

[0084] Exemplarily, the apparatus further includes: an acquisition unit 504;

[0085] The acquisition unit 504 is used to measure the angle of arrival of the UWB signal through the multi-antenna array of the receiving device to obtain the direction information of the tag device.

[0086] Alternatively, the calculation unit 502 is specifically used to estimate the angle between the tag device and the receiving device by using the time difference of arrival of the UWB signal.

[0087] Exemplarily, the device further includes: a correction unit 505;

[0088] The correction unit 505 is used to fuse the attitude data of the attitude sensor of the receiving device when calculating the angle of arrival in order to correct the direction relationship.

[0089] Exemplarily, the apparatus further includes: a comparison unit 506;

[0090] The comparison unit 506 is used to compare the angle of arrival of each tag device and determine the tag device with the smallest angle of arrival as the target tag device currently being pointed to by the receiving device.

[0091] Exemplarily, the apparatus further includes: a transmitting unit 507;

[0092] The sending unit 507 is used to send control signals to the electrical equipment bound to the target tag device according to the mapping relationship between the pre-stored tag information and the electrical control instructions, so as to control the electrical equipment according to the control signals.

[0093] Exemplarily, the device further includes: a maintenance unit 508;

[0094] Maintenance unit 508 is used to maintain a tag registry in the receiving device; wherein, the tag registry is used to record the identification information of each tag device and the control protocol of the electrical equipment associated with each tag device, so as to perform fast matching when the pointer is triggered.

[0095] For example, the tag device is a device module with UWB signal transmission function, but does not include UWB receiving function, and operates in a battery-powered manner;

[0096] The tagging device is an external module attached to the device and is associated with electrical equipment through physical attachment or placement nearby.

[0097] The broadcast period of the UWB signal of the tag device is configurable to balance positioning accuracy and device power consumption;

[0098] The receiving device can be any of a smartphone, tablet, dedicated remote control, or wearable device, and must have the capability to receive and measure UWB signals.

[0099] This application also provides an electronic device in its embodiments. (See reference...) Figure 6 The diagram illustrates a structural schematic of an electronic device suitable for implementing the pointing triggering method for space tags based on ultra-wideband signals in the embodiments of this application. The electronic device in the embodiments of this application may include, but is not limited to, fixed terminals such as mobile phones, laptops, PDAs (personal digital assistants), PADs (tablet computers), desktop computers, etc. Figure 6The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0100] like Figure 6 As shown, the electronic device may include a processing unit (e.g., a central processing unit, a graphics processing unit, etc.) 601, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 602 or a program loaded from a storage device 608 into a random access memory (RAM) 603. When the electronic device is powered on, the RAM 603 also stores various programs and data required for the operation of the electronic device. The processing unit 601, ROM 602, and RAM 603 are interconnected via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0101] Typically, the following devices can be connected to I / O interface 605: input devices 606 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 607 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 608 including, for example, memory cards, hard drives, etc.; and communication devices 609. Communication device 609 allows electronic devices to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 6 Electronic devices with various means are shown, but it should be understood that implementation or possession of all the means shown is not required. More or fewer means may be implemented alternatively.

[0102] This application also provides a computer program product including computer-readable instructions, which, when executed on an electronic device, cause the electronic device to implement any of the spatial tag pointing triggering methods based on ultra-wideband signals provided in this application.

[0103] This application also provides a computer-readable storage medium carrying one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement any of the spatial tag pointing triggering methods based on ultra-wideband signals provided in this application.

[0104] It should also be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. In addition, in the device embodiment drawings provided in this application, the connection relationship between modules indicates that they have a communication connection, which can be implemented as one or more communication buses or signal lines.

[0105] Through the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware, or it can be implemented by special-purpose hardware including application-specific integrated circuits, special-purpose CPUs, special-purpose memory, special-purpose components, etc. Generally, any function performed by a computer program can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be diverse, such as analog circuits, digital circuits, or special-purpose circuits. However, for this application, software program implementation is more often a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium, such as a computer floppy disk, USB flash drive, mobile hard disk, ROM, RAM, magnetic disk, or optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, training equipment, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0106] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product.

[0107] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, training device, or data center to another website, computer, training device, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a training device or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

Claims

1. A pointing triggering method for spatial tags based on ultra-wideband signals, characterized in that, The method includes: Deploy at least one tag device with UWB signal transmission capability, the tag device being configured to broadcast the UWB signal at a preset period, the UWB signal containing at least the identification information of the tag device; When the receiving device receives the UWB signal broadcast by at least one of the tag devices, it calculates the angle of arrival of the tag device relative to the receiving device based on the received UWB signal, and determines the directional relationship between the receiving device and each tag device based on the angle of arrival. The target tag device is selected according to the pointing relationship, and the device control operation of the electrical equipment associated with the target tag device is triggered based on the identification information of the target tag device.

2. The pointing triggering method based on a spatial tag using an ultra-wideband signal according to claim 1, characterized in that, The step of calculating the angle of arrival of the tag device relative to the receiving device based on the received UWB signal includes: The angle of arrival of the UWB signal is measured by the multi-antenna array of the receiving device to obtain the directional information of the tag device. Alternatively, the angle between the tag device and the receiving device can be estimated by using the time difference of arrival of the UWB signal.

3. The pointing triggering method based on a spatial tag using an ultra-wideband signal according to claim 2, characterized in that, The method further includes: When calculating the angle of arrival, attitude data from the attitude sensor of the receiving device is fused to correct the direction of the pointing relationship.

4. The pointing triggering method based on a spatial tag using an ultra-wideband signal according to claim 1, characterized in that, The step of determining the pointing relationship between the receiving device and each tag device based on the angle of arrival includes: By comparing the angles of arrival of each tag device, the tag device with the smallest angle of arrival is determined as the target tag device currently being pointed to by the receiving device.

5. The pointing triggering method for spatial tags based on ultra-wideband signals according to claim 1, characterized in that, The step of triggering a device control operation associated with the target tag device based on the identification information of the target tag device includes: Based on the pre-stored mapping relationship between tag information and appliance control commands, a control signal is sent to the appliance bound to the target tag device to control the appliance according to the control signal.

6. The pointing triggering method based on a spatial tag using an ultra-wideband signal according to claim 1, characterized in that, The method further includes: The receiving device maintains a tag registry; wherein the tag registry is used to record the identification information of each tag device and the control protocol of the electrical equipment associated with each tag device, so as to perform fast matching when a trigger is triggered.

7. The pointing triggering method for spatial tags based on ultra-wideband signals according to any one of claims 1 to 6, characterized in that, The tag device is a device module with UWB signal transmission function, but does not include UWB receiving function, and operates on battery power. The tag device is a rear-mounted module that is associated with electrical equipment through physical attachment or placement nearby. The broadcast period of the UWB signal of the tag device is configurable to balance positioning accuracy and device power consumption. The receiving device can be any one of a smartphone, tablet, dedicated remote control, or wearable device, and must have the capability to receive and measure UWB signals.

8. A pointing triggering device for a spatial tag based on an ultra-wideband signal, characterized in that, include: A deployment unit is used to deploy at least one tag device with UWB signal transmission function, the tag device being configured to broadcast the UWB signal at a preset period, the UWB signal containing at least the identification information of the tag device; The calculation unit is configured to calculate the angle of arrival of the tag device relative to the receiving device based on the received UWB signal when the receiving device receives the UWB signal broadcast by at least one of the tag devices, so as to determine the directional relationship between the receiving device and each tag device based on the angle of arrival; The selection unit is used to select a target tag device according to the pointing relationship, and to trigger device control operation of electrical equipment associated with the target tag device based on the identification information of the target tag device.

9. An electronic device, characterized in that, It includes at least one processor and a memory connected to the processor, wherein: The memory is used to store computer programs; The processor is used to execute the computer program to enable the electronic device to implement the pointing triggering method for space tags based on ultra-wideband signals as described in any one of claims 1 to 7.

10. A computer storage medium, characterized in that, The storage medium carries one or more computer programs that, when executed by an electronic device, enable the electronic device to implement the pointing triggering method for spatial tags based on ultra-wideband signals as described in any one of claims 1 to 7.

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