Auxiliary interaction device, related products and control method

Abstract

The application discloses an auxiliary interaction device, a related product and a control method, relates to the technical field of medical auxiliary instruments and human-computer interaction, and solves the problem of human-computer interaction difficulty of patients caused by physical restraint in clinical nursing, so that the patients can still realize high-density demand expression and external device control in the case that the wrists are restrained, and the nursing experience and patient autonomy are improved.

Description

Technical Field

[0001] This application relates to the fields of medical assistive devices and human-computer interaction technology, and more specifically, to an assistive interaction device, related products and control methods. Background Technology

[0002] In clinical nursing settings, such as intensive care, post-neurosurgery recovery, and psychiatric treatment, medical staff often need to apply physical restraints to patients to prevent them from unconsciously removing medical tubes such as drainage tubes or endotracheal tubes, or to prevent self-harm or dangerous behaviors. These restraints may include wearing restraint gloves or wrist straps. Under these restraints, the patient's upper limb mobility, especially in the wrists and hands, is significantly limited, making conventional human-computer interaction methods difficult to apply. Some patients also experience aphasia, language expression disorders, or decreased post-operative communication abilities, making it difficult for them to communicate basic needs such as drinking, eating, excretion, pain, and discomfort in a timely and accurate manner, thus causing inconvenience to clinical nursing and patient care.

[0003] Existing electronic interactive devices used for communication assistance or device control mostly take the form of handheld terminals, fixed button panels, or stand-mounted touch terminals. These devices typically require users to have a certain grasping ability, pressing ability, or a large range of upper limb movement. However, under restraints, patients often can only perform small-amplitude finger flexion and extension, light touch, or localized pressing movements, making it difficult to effectively operate these devices.

[0004] Furthermore, constraints often limit the space available for arranging interactive components, especially in small devices like restraint gloves, where the area of ​​the interactive interface is limited, restricting the number of input units that can be deployed. In related technology, Chinese utility model patent "CN204709115U" discloses a novel multifunctional medical restraint glove, including a wrist section and an elastic ball. A connecting portion extends from the front end of the wrist section, and the connecting portion has an elastic sleeve for fixing the elastic ball. The upper surface of the elastic sleeve has five finger-separating fixing straps adapted to the fingers. A calling device is located inside the elastic ball, connected to the nurse station control system via a wire. A button is protruding from the surface of the elastic ball and connected to the calling device. A fixing hole for limiting the button is provided on the elastic sleeve, located in front of the thumb-separating fixing strap. While this novel multifunctional medical restraint glove can achieve basic interactive functions, it still struggles to support a sufficiently rich set of interactive commands, thus failing to simultaneously meet the needs of patients expressing basic nursing needs, multi-scenario semantic output, and external device control. Summary of the Invention

[0005] The main objective of this application is to provide an auxiliary interaction device, related products, and control method to solve the problem in the related art of failing to meet user interaction needs when the user's wrist is constrained.

[0006] To address the aforementioned technical problems, according to one aspect of this application, an auxiliary interactive device is provided, comprising: a housing having a body and a connecting portion; the connecting portion being used to connect the body to a constraint member, the body having a contact area for user finger operation; a trigger module disposed on the contact area, including a first input unit and a second input unit; wherein the first input unit and the second input unit are used to generate a trigger signal in response to the contact operation; and a trigger signal output interface disposed on the body and electrically connected to the trigger module, the trigger signal output interface being used to output a trigger signal having first identification information of the first input unit or second identification information of the second input unit, the first identification information and the second identification information having different data characteristics for external devices to distinguish them.

[0007] Furthermore, the connecting part is used to detachably connect the body to the constraint member by means of mechanical coupling.

[0008] Furthermore, both the first input unit and the second input unit are selected from at least one of mechanical buttons, touch buttons, scroll wheel buttons, joysticks, linear touch bars, and touchpads.

[0009] Furthermore, the second input unit includes multiple triggers, and different triggers are configured to generate trigger signals with different second identification information in response to the contact operation; wherein, the different second identification information is used for external devices to identify the trigger signals of different triggers so as to generate different instruction signals in the corresponding working mode.

[0010] According to another aspect of this application, a wrist restraint device is provided, comprising: a restraint member for restraining a user's wrist; and the aforementioned auxiliary interaction device.

[0011] According to another aspect of this application, a control device is provided for the aforementioned auxiliary interactive device, the control device comprising: a receiving interface for receiving a trigger signal; wherein the trigger signal has first identification information for identifying a first input unit or second identification information for identifying a second input unit; a processor configured to: switch the operating mode of the control device when the first identification information is identified from the trigger signal; invoke mapping logic corresponding to the current operating mode when the second identification information is identified from the trigger signal, and parse the trigger signal based on the mapping logic to generate an instruction signal; and an output interface for outputting the instruction signal.

[0012] Furthermore, the processor is also configured to: when identifying the second identification information from the trigger signal, invoke mapping logic corresponding to the current operating mode, the mapping logic including instruction codes corresponding to different second identification information; match the instruction code corresponding to the trigger signal according to the mapping logic; and encapsulate the instruction code into an instruction signal with a preset frame structure.

[0013] Furthermore, the control device has an active state and a listening state, and the processor is configured to control the control device to switch between the active state and the listening state; wherein, in the active state, the processor starts a parsing thread to parse the trigger signal; in the listening state, the processor shuts down the parsing thread.

[0014] Furthermore, the processor is configured to control the control device to switch between the active state and the listening state through preset logic, the preset logic including link feature logic or encoding recognition logic; wherein, under the link feature logic, the processor is used to acquire link feature parameters, the link feature parameters including level signal amplitude, data frame frequency, signal strength, signal-to-noise ratio, bit error rate, packet loss rate, delay, or link connectivity status; and, when the link feature parameters meet a preset activation threshold, the control device is switched from the listening state to the active state; under the encoding recognition logic, the processor is used to scan the received signal stream, and when a preset control switching flag is detected in the signal stream, the control device is switched from the listening state to the active state.

[0015] Furthermore, the processor has an anti-accidental touch state; in the anti-accidental touch state, the processor configures the working state variable to a first value; at the first value, the processor blocks the logic mapping channel corresponding to the second input unit; when the processor receives a trigger signal with first identification information, it updates the working state variable to a second value and opens the logic mapping channel corresponding to the second input unit to parse the trigger signal with second identification information; when the working state variable is the second value, it calls a system timer to record the arrival timestamps of two adjacent valid trigger signals; it calculates the difference between the timestamps, and when the difference exceeds a preset duration threshold, it resets the working state variable to the first value.

[0016] Furthermore, the processor includes a filtering unit configured to filter the trigger signal before parsing it based on the mapping logic to generate an instruction signal, wherein the filtering process includes the following steps:

[0017] The original sampling points of the trigger signal are averaged using a sliding window algorithm to eliminate high-frequency glitches.

[0018] A digital notch filter is configured for a preset jitter frequency range. When the waveform characteristics of the trigger signal are detected to match the jitter frequency range, the trigger signal is attenuated.

[0019] The signal amplitude of the trigger signal is detected. When the duration of the signal amplitude exceeding the preset threshold reaches the confirmation duration threshold, the trigger signal is parsed based on the mapping logic to generate an instruction signal.

[0020] According to another aspect of this application, a control method is provided, operating on the aforementioned control device, the control method comprising:

[0021] Acquire a trigger signal and identify the first identification information and the second identification information in the trigger signal;

[0022] When the first identification information is identified, the operating mode of the control device is switched, and when the second identification information is identified, instruction parsing is performed; and

[0023] Based on the mapping logic corresponding to the current working mode, the trigger signal is parsed to generate an instruction code, the instruction code is encapsulated into an instruction signal, and the instruction signal is output.

[0024] According to another aspect of this application, a non-volatile computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the steps in the control method described above.

[0025] According to yet another aspect of this application, a computer program product is provided, comprising a computer program that, when executed by a processor, implements the steps of the control method described above.

[0026] According to another aspect of this application, a wrist restraint system is provided, comprising: the aforementioned auxiliary interaction device; the aforementioned control device, communicatively connected to the auxiliary interaction device, for generating command signals in response to a user's contact operation; and a restraint member for fixing the auxiliary interaction device to the user's wrist.

[0027] By applying the technical solution of this application, the auxiliary interactive device provided is mounted on the restraint member, with the contact area located in a position accessible to the user under restraint. This allows the user to complete interactive operations through minute finger movements even with wrist restraint, improving operational convenience under restricted conditions. Through the coordination of the first input unit, the second input unit, and multiple preset working modes, limited input operations can be mapped into various control commands, achieving richer interactive functions with fewer input structures. It features "one-button multi-purpose" functionality, which is beneficial for meeting diverse interactive needs in special nursing scenarios. Furthermore, audio feedback is provided through the audio output device, allowing the user to promptly obtain the current mode or operation result, thereby improving interaction accuracy and reducing the possibility of false triggers and misjudgments, especially suitable for scenarios where the user's visual attention or activity space is limited. In addition, this application can provide auxiliary functions such as emotion regulation, information acquisition, and environmental control for users with wrist restraint through voice broadcasting, music playback, infrared control, and music performance, thereby enhancing user autonomy, improving the nursing experience, and increasing interactive convenience. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0029] Figure 1 A schematic diagram of an auxiliary interaction system provided according to an embodiment of this application is shown;

[0030] Figure 2 A schematic diagram of an auxiliary interaction device provided according to an embodiment of this application is shown;

[0031] Figure 3 A schematic diagram of the control flow of a control device provided according to an embodiment of this application is shown;

[0032] Figure 4 A schematic diagram of a feedback mechanism for an auxiliary interaction system provided according to an embodiment of this application is shown;

[0033] Figure 5 A schematic diagram of another auxiliary interaction system provided according to an embodiment of this application is shown;

[0034] Figure 6 A schematic diagram of another auxiliary interaction device provided according to an embodiment of this application is shown;

[0035] Figure 7 A schematic diagram of another auxiliary interaction system provided according to an embodiment of this application is shown;

[0036] Figure 8 A schematic diagram of yet another auxiliary interaction system provided according to an embodiment of this application is shown;

[0037] Figure 9 A schematic diagram of yet another auxiliary interaction system provided according to an embodiment of this application is shown;

[0038] Figure 10 A flowchart illustrating a control method provided according to an embodiment of this application is shown; and

[0039] Figure 11 A schematic diagram of a wrist restraint device according to an embodiment of this application is shown.

[0040] The above figures include the following reference numerals:

[0041] 11. Body; 12. Connecting part; 20. First trigger; 31. Second trigger; 32. Third trigger; 33. Fourth trigger; 34. Fifth trigger; 35. Sixth trigger; 41. Audio output device; 42. Infrared transmitter; 51. Restraining member; 52. Receiving part. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0044] It should be noted that the terms "first," "second," etc., 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 data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0045] As described in the background section, electronic interactive devices used for assisting communication or device control in related technologies often take the form of handheld terminals, fixed button panels, or stand-mounted touch terminals. These devices typically require users to have a certain grasping ability, pressing ability, or a large range of upper limb movement. However, under restraint, patients often can only perform small finger flexion and extension, light touch, or localized pressing movements, making it difficult to effectively operate these devices. Furthermore, restraints usually limit the space available for arranging interactive components, especially in small devices such as restraint gloves, where the area of ​​the interactive interface is limited, and the number of input units that can be deployed is also limited. While some related technologies can achieve basic interactive functions, they still struggle to support a sufficiently rich set of interactive commands, making it difficult to simultaneously meet the needs of patients for expressing basic nursing care needs, multi-scenario semantic output, and external device control. To address the problem that related technologies cannot meet user interaction needs when the user's wrist is restrained, embodiments of this application provide an assistive interactive system and method applicable to medical care or special restraint environments. This system aims to help users achieve highly reliable and low-error-touch information interaction under extreme conditions where the wrist is restrained, finger movement space is limited, and visual attention is lacking.

[0046] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0047] According to one aspect of the embodiments of this application, an auxiliary interaction system is provided. Figure 1 This is a schematic diagram of an auxiliary interaction system provided according to an embodiment of this application, such as... Figure 1 As shown, the auxiliary interaction system includes an auxiliary interaction device, a control device, an execution device, and an audio output device. The auxiliary interaction device is the physical interaction terminal of the system. The control device is the core of the system's logic processing, responsible for signal recognition, mode switching, and command generation. The execution device and audio output device are responsible for the final implementation of commands (such as infrared control and voice broadcasting) and the closed-loop feedback of the interaction. Furthermore, the auxiliary interaction system can be equipped with a power supply module to power the auxiliary interaction device, control device, execution device, and audio output device. The power supply module can use a rechargeable lithium battery or an external power interface.

[0048] According to another aspect of the embodiments of this application, an auxiliary interaction device is provided. Figure 2 This is a schematic diagram of an auxiliary interaction device provided according to an embodiment of this application, such as... Figure 2As shown, the auxiliary interaction device includes a housing and a trigger module. The housing includes a body 11 and a connecting part 12. The connecting part 12 is used to fix the body 11 to an external constraint member 51 (e.g., a medical restraint strap, restraint bracket, etc.). The connecting part 12 and the constraint member 51 are detachably connected by mechanical coupling. Mechanical coupling methods include, but are not limited to, magnetic attraction, snap-fit, fastening, clamping, threaded connection, or Velcro adhesion. This structure allows the body 11 to separate from the constraint member 51 without damaging electronic components when a non-destructive separation force is applied (e.g., during cleaning, disinfection, or emergency treatment).

[0049] The surface of the main body 11 is provided with fingertip operation positions adapted to the user's restricted posture. The main body 11 adopts an arc-shaped configuration that conforms to the natural relaxed state of the hand. When the user's wrist is restricted, their finger movements are within a specific semi-enclosed space with extremely limited envelope of motion. The main body 11 uses this configuration to ensure that the trigger module is precisely located in the area that can be reached by slight flexion and extension of the fingers.

[0050] The trigger module is located on the fingertip operation position on the surface of the main body 11. The trigger module includes a first input unit and a second input unit, each comprising multiple trigger elements. For example, the first input unit includes a first trigger element 20, and the second input unit includes a second trigger element 31 and a third trigger element 32. The trigger module adopts an asymmetrical layout to adapt to the natural physiological position of the human hand under constraint. The first trigger element 20 (which can serve as a mode switching button) is located near the area where the thumb is active, while the second trigger element 31 and the third trigger element 32 are located near the fingertips of the index and middle fingers, respectively. The trigger elements can be selected from at least one of the following based on the user's residual motor ability: mechanical buttons, touch buttons, scroll wheels, joysticks, linear touch strips, or touchpads.

[0051] The housing is equipped with a trigger signal output interface. When any trigger element is activated, the trigger signal interface outputs a trigger signal with identification information. In this embodiment, the identification information is determined through the physical connection relationship of the hardware circuit. The first input unit is connected to the processor through a first input channel, and the second input unit is connected to the processor through a second input channel. The processor identifies the source of the signal accordingly and assigns it differentiated logical attributes.

[0052] According to another aspect of the embodiments of this application, an auxiliary interaction device is provided. Figure 3 This is a schematic diagram of the control flow of a control device according to an embodiment of this application, such as... Figure 3 As shown, the control device includes a receiving interface, a processor, and an output interface. The processor separates the "management logic (mode switching)" and the "execution logic (function triggering)" through internal status registers and preset logic. The specific processing logic of the processor will be described in detail below.

[0053] When the processor receives a trigger signal from the trigger signal interface, it first extracts the identification information carried in the signal. As described above, this identification information is determined through the physical connection relationship of the hardware circuit. When the user operates the first input unit, the processor marks the signal as a feature identifier with the "mode switching" attribute based on the first input unit identification information. When the user operates the second input unit, the processor marks it as a feature identifier with the "function request" attribute based on the second input unit identification information.

[0054] When the processor receives a signal corresponding to the feature identification information of the second input unit, it determines that the mode switching condition is met. The processor reads and updates the value in the status register to switch the operating mode in a preset mode cycle sequence (e.g., mode A → mode B → mode C → mode A). After each switch, the processor can drive the audio output device 41 to play the corresponding mode prompt tone (e.g., "Entered semantic playback mode").

[0055] When the processor receives a signal corresponding to the second input unit based on the feature identification information, it determines that the mode switching condition is not met and enters the function mapping process. At this time, the processor calls the corresponding function plug-in instruction set according to the operating mode indicated by the current status register, mapping the same physical trigger action to a specific instruction in that mode.

[0056] To achieve high-density instruction output, the processor establishes a logical mapping index. This index uses the operating mode as the first-level dimension and feature identification information (including single-point triggering, combined triggering, and triggering methods) as the second-level dimension. For example, if the second trigger 31 and the third trigger 32 trigger simultaneously within a preset time window, the processor matches the corresponding combined control instruction in the current operating mode. To ensure transmission reliability, the processor encapsulates the matched instruction code into a communication protocol with a preset frame structure. The data frame structure can sequentially include a start bit, a data field, and a checksum / parity bit. The start bit is used to synchronize the clock and mark the start of the signal; the data field contains the instruction code (such as hexadecimal code representing "I want to drink water" or "Air conditioner on / off"); and the checksum / parity bit uses CRC or parity checking to ensure the accuracy of the data received by the actuator.

[0057] Once encapsulated, the complete instruction signal is transmitted through an output interface (such as Bluetooth, infrared, or serial port). After receiving the signal, the actuator first verifies the check bit; if the verification passes, it parses the instruction code in the data field and drives the corresponding actuator, thus completing the interactive closed loop from physical pressing to actual function execution.

[0058] Specifically, the control device first acquires the trigger signal generated by the trigger module and extracts its feature identification information. Further, if the feature identification information corresponds to the first trigger element 20, it is determined to be a mode switching request, and the device enters the mode update step, updating the current working mode status information according to the mode cycle sequence; if the feature identification information corresponds to the second input unit, it is determined to be a function trigger request, and the device enters the instruction parsing step. Further, based on the current working mode status information, the logical mapping index is called to match the instruction code, and it is encapsulated into a data frame containing a start bit and a check bit. Further, the control device sends the data frame to the execution device through the output interface and simultaneously drives the audio output device to play an operation confirmation feedback tone.

[0059] The embodiments of this application achieve rich functional expression within a minimalist hardware space through the "asymmetric layout" at the physical level and the "one-click multi-use (mode switching)" mechanism at the logical level.

[0060] Table 1

[0061]

[0062] Table 1 illustrates the mapping logic of a control device for an auxiliary interactive system provided according to an embodiment of this application. As shown in Table 1, the system preset modes include semantic playback modes (M11, M12, M14) and entertainment and environmental control modes (M13). Specifically, in the "Eating and Drinking Mode M11," the second trigger 31 is mapped to "drink some water," the third trigger 32 is mapped to "eat some food," and the combined trigger (second trigger 31 + third trigger 32) is mapped to "I'm full." Similarly, the "Defecation Mode M12" corresponds to the need for excretion, and the "Pain and Itch Mode M14" corresponds to the expression of physiological sensations. In the "Music Mode," the trigger signals are mapped to "previous song," "next song," and "play / pause," respectively.

[0063] Figure 4 This is a schematic diagram of a feedback mechanism for an auxiliary interaction system provided according to an embodiment of this application, such as... Figure 4 As shown, the auxiliary interaction system can achieve a closed-loop interaction through an audio feedback mechanism. The processor can respond to any trigger signal, driving the execution device and audio output device 41 to play corresponding prompts. The audio output device 41 can provide mode switching feedback, such as announcing "Entered physiological expression mode," informing the user of the current logical level. It can also provide operation confirmation feedback, such as announcing "Water request sent," confirming that the instruction has been executed. In environments with limited space and lack of visual attention, this closed-loop feedback allows users to confirm the validity of the operation through hearing.

[0064] This application's embodiments solve the problem of difficult interaction under restricted conditions through deep adaptation of physical configuration and physiological posture. Utilizing a "one-click multi-use" mode switching logic and combined triggering mechanism, complex interaction requirements are accommodated on a minimalist hardware structure. Combined with closed-loop audio feedback, the current mode and command execution status are communicated to the user in real time via audio, compensating for the uncertainty caused by visual impairment, significantly reducing the false triggering rate for disabled or restrained patients, and enhancing the autonomy of restrained patients.

[0065] Figure 5 This is a schematic diagram of another auxiliary interaction system provided according to an embodiment of this application. Figure 6 This is a schematic diagram of an auxiliary interaction device for another auxiliary interaction system provided according to an embodiment of this application, such as... Figure 5 and Figure 6 As shown, the auxiliary interaction system includes an auxiliary interaction device, a control device, an execution device, an audio output device, and an infrared emitting device.

[0066] The auxiliary interaction device includes a housing and a trigger module. The housing includes a main body 11 and a connecting part 12. The connecting part 12 is used to fix the main body 11 to an external constraint (such as a medical restraint strap, restraint bracket, etc.). The surface of the main body 11 is provided with fingertip operating positions adapted to the user's restricted posture. The main body 11 adopts an arc-shaped configuration that conforms to the natural relaxed state of the hand. When the user's wrist is restrained, their finger movement is within a specific semi-enclosed space with extremely limited envelope of motion. The main body 11, through this configuration, ensures that the trigger module is precisely located in an area reachable by slight finger flexion and extension.

[0067] The control device, which can be integrated into the housing, includes a receiving interface, a processor, and a transmitting interface for storing mapping logic and managing system operating modes. The execution device may include a semantic playback module, a music playback module, an infrared control module, and a musical instrument playing module. The execution device can connect to an external audio output device (e.g., a speaker or mobile terminal) via a wireless communication component (such as a Bluetooth module) to achieve audio output. The infrared transmitter includes an infrared transmitter 42 integrated into the housing; the execution device connects to the infrared transmitter 42 to control external electrical appliances.

[0068] The trigger module is located on the fingertip operation position on the surface of the main body 11. The trigger module includes a first input unit and a second input unit, and the first input unit and the second input unit include multiple trigger elements. Among them, the first input unit includes a first trigger element 20, and the second input unit includes a second trigger element 31, a third trigger element 32, a fourth trigger element 33, a fifth trigger element 34, and a sixth trigger element 35.

[0069] Specifically, the contact area on the main body 11 is configured with corresponding trigger positions for each of the five fingers according to the anatomical structure of the human hand. The thumb position corresponds to the second trigger 31, which can be a joystick structure. The introduction of the joystick increases the interaction dimension, and different input vectors can be represented by displacement signals in four directions: up, down, left, and right, greatly expanding the information density per unit time. The index finger position can be equipped with the first trigger 20 (mode switching button) and the third trigger 32 side by side. The middle finger, ring finger, and little finger positions can be equipped with the fourth trigger 33, the fifth trigger 34, and the sixth trigger 35, respectively. The fourth trigger 33, the fifth trigger 34, and the sixth trigger 35 all adopt mechanical buttons or touch buttons. This five-finger linkage layout of "joystick + multi-button" can ensure that users can achieve high-degree-of-freedom multi-channel input through independent finger movements without palm displacement, even in a restricted posture where the wrist is completely fixed.

[0070] The housing contains a trigger signal output interface. When any trigger is activated, the trigger signal interface outputs a trigger signal with identification information. In this embodiment, this identification information is determined through the physical connection relationship of the hardware circuit. The first input unit is connected to the processor through a first input channel, and the second input unit is connected to the processor through a second input channel. The processor identifies the source of the signal accordingly and assigns it differentiated logical attributes.

[0071] The control unit stores a mapping logic table for multiple operating modes. The processor monitors trigger signals in real time. Whenever it receives a signal from the first trigger 20, the processor executes a mode switch according to a preset sequence. If it is not a mode switching signal, the processor converts the joystick displacement signal or button trigger signal into the corresponding control command based on the currently active mode index.

[0072] Table 2

[0073]

[0074] Table 2 illustrates the mapping logic of a control device for an auxiliary interactive system according to another embodiment of this application. As shown in Table 2, the control device presets physiological / logical expression modes (M21, M22), multimedia entertainment mode (M23), infrared remote control mode (M24), and music playing mode (M25) to meet the patient's comprehensive needs from survival needs to psychological entertainment. Specifically, in "physiological expression mode M21," the processor maps the four-way displacement of the second trigger 31 (joystick) to core needs such as "eating and drinking" and "urination and defecation"; and maps the third trigger 32, fourth trigger 33, fifth trigger 34, and sixth trigger 35 (independent buttons) to degree or attribute expressions such as "pain, itching, cold, and heat." In "logical expression mode M22," the joystick corresponds to the direction (up / down / left / right), and the button corresponds to the logical judgment (yes / no / can / cannot). In "Multimedia Entertainment Mode M23", the second trigger 31 controls the progress of "previous / next / fast forward / rewind", while the third, fourth, fifth, and sixth triggers 32 and 33, and volume adjustment, respectively. In "Infrared Remote Control Mode M24", the processor activates the infrared control module and stops audio feedback. The control device obtains the encoding through the built-in infrared protocol library or by connecting to a mobile terminal APP via Bluetooth, converts the trigger signal into the encoding protocol of the corresponding brand of electrical appliance (such as TV, air conditioner), and sends it through the infrared transmitter 42. In "Music Playing Mode M25", the processor maps the displacement of the second trigger 31 to a scale (such as do, re, mi, etc.) in real time, and combines it with the third, fourth, fifth, and sixth triggers 32 and 33 to dynamically modulate the pitch (high / low) and timbre (instrument / accompaniment), allowing the restricted user to play music in real time through micro-movements of the fingers, thus playing a psychological rehabilitation role.

[0075] The above embodiments significantly improve the instruction throughput of the interactive system by increasing the number of hardware input dimensions (joystick) and trigger elements without increasing the distance the user's hand moves. Combined with the connection between the execution device and an external Bluetooth speaker, a complete interactive loop is constructed, from "micro-motion capture" to "multi-dimensional semantic / control instruction generation" and then to "external environment feedback." This not only solves the communication difficulties of aphasic or restrained patients but also enhances their control over the environment and psychological autonomy through infrared remote control and music playing functions.

[0076] Figure 7 This is a schematic diagram of another auxiliary interaction system provided according to an embodiment of this application. Figure 8 This is a schematic diagram of yet another auxiliary interaction system provided according to an embodiment of this application. Figure 9 This is a schematic diagram of yet another auxiliary interaction system provided according to an embodiment of this application. For example... Figure 7 , Figure 8 and Figure 9 As shown, the assisted interaction system can adopt a distributed collaborative architecture, in which the assisted interaction device acts as a signal acquisition terminal, responsible for motion capture and digitization, while the functions of the control device are distributed in the application (APP) of external smart terminals (such as smartphones, tablets) or remote servers.

[0077] The system may include an auxiliary interactive device (main control input) and multiple control execution terminals (functional output terminals, such as mobile phones, intelligent nursing robots, intelligent wheelchairs, etc.). The auxiliary interactive device establishes communication links with each terminal via Bluetooth Low Energy (BLE), Wi-Fi, or wireless mesh networks (Zigbee, Thread, etc.). The operating modes are stored in the cloud or in an app, and new scenarios such as "lighting control," "air conditioning control," or "door lock control" can be added via online upgrades (OTA) without replacing hardware, achieving unlimited expansion of the logic.

[0078] To achieve orderly and low-power scheduling of multiple execution terminals under a single input source, each execution terminal's integrated control device runs a state machine management program. The processor can manage the control device through the state machine, transitioning between the active state and the listening state. In the active state, the processor enables a full-featured parsing thread, including signal sampling, software filtering, and instruction mapping, maintaining a high sampling frequency to ensure real-time interaction. In the listening state, the processor suspends or closes the parsing thread, entering a low-power mode. Only the underlying interrupt monitoring logic or link feature scanning unit is retained to significantly extend battery life.

[0079] The processor can instantaneously transition from a listening state to an active state based on at least one of link feature logic and encoding recognition logic. Under the link feature logic, the processor periodically acquires link feature parameters between itself and the auxiliary interaction device. These parameters include signal amplitude, data frame frequency, signal strength index (RSSI), signal-to-noise ratio (SNR), bit error rate, or link connectivity status. When the RSSI is detected to be greater than a preset activation threshold and the link packet loss rate is lower than a preset fluctuation threshold, it is determined that the user has entered the effective interaction range, driving the transition. Under the encoding recognition logic (control handover wake-up), the processor performs real-time pattern matching scanning on the received streaming data in the listening state. Once a preset "Control Handover Flag" is detected in the signal stream, the processor immediately wakes up the parsing thread. For example, a specific execution terminal can be selected by recognizing a specific long-short sequence encoding (such as "long-short-long") of the first trigger 20.

[0080] To ensure connection stability and command accuracy under medical constraints, a specific communication mechanism is used between the auxiliary interaction device and the control device (APP). For physical layer security, Frequency Hopping Spread Spectrum (FHSS) technology is employed, dynamically switching channels within the 2.4GHz band to ensure signal upload latency is less than 50ms. Each data packet (8 bytes in length, for example) includes a start bit (1 byte), device ID (1 byte), trigger source identifier (1 byte), action type feature (1 byte), status payload (3 bytes), and a check bit (1 byte). The start bit is fixed at 0xAA, used to identify the start of the frame; the device ID distinguishes devices in different wards to prevent signal crosstalk; the trigger source identifier identifies the activated trigger; the action type feature (1 byte) identifies the specific coded action as a short press (0x01), long press (0x02), double-click (0x03), or sliding displacement (0x04); the status payload identifies the carried battery level, RSSI value, and the sensor's original displacement vector; the check bit uses Cyclic Redundancy Check (CRC-8), requesting a retransmission if the check fails.

[0081] The above embodiments, through a distributed architecture and state machine mechanism, achieve flexible expansion of "one terminal controlling multiple machines." For restraining patients, there is no need to change the operating device; control can be switched between different terminals simply by following a preset operation sequence. Simultaneously, the introduction of the state machine solves the power consumption bottleneck during long-term monitoring, ensuring the reliability and stability of the interactive system at critical moments.

[0082] Furthermore, the control device achieves logical hierarchy between the first and second input units through dynamic management of operating state variables. This mechanism constructs a closed-loop interactive process of "initial prevention of accidental touch, active activation, and automatic reset upon timeout".

[0083] Specifically, upon initial power-on, reset, or entering an idle state, the processor defaults to an "anti-accidental touch state." The processor configures its internally stored operating state variables to a first value (e.g., V = 0). In this state, the processor's logic parsing architecture is in a "semi-shielded" state. The processor only opens the event monitoring output for the first trigger 20, while simultaneously blocking the logic mapping channel for the second input unit. Even if the second input unit generates an electrical signal due to the patient's hand tremor or unconscious squeezing, the processor will directly discard the signal without generating any functional instructions, thus preventing unintended accidental triggering at the source.

[0084] When a user has a clear intention to interact, a preset "handshake" operation (such as a series of taps, a long press, or a single valid click) must be performed through the first trigger 20. After the processor detects that the feature identification information of the first trigger 20 meets the preset conditions, it immediately updates the working status variable from the first value to the second value (such as V = 1), and the system switches to the "function activated state". At this time, the processor simultaneously opens the previously closed logic mapping channel, enabling the signal parsing capability of the second input unit. At the same time, in response to the state transition, the audio output module 41 outputs a preset voice prompt (such as "System unlocked" or "Please select function") to inform the user that they are currently in an operable window.

[0085] To shorten the "time window" of erroneous operation, the control device introduces timestamp-based automatic reset logic. During the "function active state," the processor invokes the system timer. Whenever a valid trigger signal (including the signal from the first trigger 20 or the second input unit) is detected, the processor immediately updates and records the current arrival timestamp T. n The processor calculates the current system time T in real time. curr Compared with the last valid timestamp T n The difference is represented by the following formula: ΔT = T curr – T n。 If the difference ΔT exceeds the preset time threshold (e.g., 5 to 10 seconds), the processor determines that the user has ended the interaction or is in an uncontrolled state, randomly resets the working status variable to the first value, and re-blocks the parsing channel of the second input unit, and the system reverts to the "anti-accidental touch state".

[0086] Because pathological tremors are typically persistent and irregular, the "working mode switching" and "functional command output" are logically hierarchically graded to ensure that high-frequency function keys are only activated after the patient expresses their intention to interact through a clear subjective action (operating the first input unit). Combined with an automatic reset mechanism after timeout, this significantly improves the accuracy of the interaction and the seriousness of the command output.

[0087] Furthermore, the processor integrates a dedicated software filtering unit. When a user (especially a patient with involuntary hand tremors due to Parkinson's disease, central nervous system damage, or advanced age) operates the trigger module, the raw signals captured by the sensors often contain a significant amount of physiological tremor noise. To accurately identify the user's voluntary operating intentions, the control device can perform filtering and judgment processes.

[0088] Specifically, the processor's software filtering unit first performs time-domain preprocessing on the raw signal after analog-to-digital conversion. This preprocessing employs a sliding window arithmetic mean algorithm, setting the sampling window length to N (e.g., N = 10~20), and the processor maintains a first-in-first-out sampling queue in real time. The filtered output value Y(n) at each time step is equal to the arithmetic mean of the current sample value and the previous N-1 sample values, expressed as follows:

[0089] .

[0090] This step effectively filters out transient high-frequency spikes caused by environmental electromagnetic interference to the sensor and smooths the signal envelope, providing stable basic data for subsequent frequency analysis.

[0091] Furthermore, considering the specific frequency range of physiological tremors, the control device can achieve targeted frequency truncation through digital signal processing (DSP) logic. Clinical studies have shown that the tremor frequency of most patients' hands is concentrated in the 4Hz to 8Hz range. The control device uses an infinite impulse response (IIR) digital notch filter. The processor performs a Fast Fourier Transform (FFT) on the signal or directly applies the notch filter difference equation to deeply attenuate the components within this specific frequency range (the attenuation amplitude is usually set above -20dB). Since the user's voluntary compression action is usually a low-frequency DC component (around 0~2Hz), notch filtering can accurately eliminate spurious triggering fluctuations caused by pathological tremors while preserving the compression intention signal.

[0092] After completing the above filtering, the system performs a final logical verification to prevent malfunctions caused by slight touches or residual vibrations that have not been filtered out. A preset motion sensitivity threshold A can be used. th Only when the filtered signal level continuously exceeds A th The system only starts timing at that time. A confirmation time threshold T is introduced. th (For example, 300ms~500ms). If the signal amplitude exceeds A th Duration less than T th The system identifies such signals as momentary accidental touches or excessively large tremor pulses and does not respond. Only when the signal simultaneously meets both the "amplitude meets the standard" and the "duration meets the standard" conditions is the processor determined to be a valid autonomous triggering intent, and the signal level is converted into a corresponding control command for execution output according to the current device operating mode (such as semantic mapping mode or multimedia control mode). Through the above triple filtering and judgment mechanism, this device can ensure a very high interaction accuracy even when the patient's physical condition is unstable or their hand control is poor, avoiding low communication efficiency caused by accidental triggering.

[0093] According to another aspect of this application, a control method for an auxiliary interaction system is also provided. This method can run in the processor of the control device described in the above embodiments, and through the collaboration of hardware resources and software logic, it can achieve accurate extraction and response to the patient's intentions under restricted posture.

[0094] Figure 10 This is a flowchart illustrating a control method according to another embodiment of this application, which can be operated on the aforementioned control device. Figure 10 As shown, the method includes steps S1 to S5, where steps S2 and S5 are optional, as detailed below:

[0095] Step S1: Acquire the trigger signal and identify the first and second identification information within it. Specifically, the processor monitors the status of the trigger module in real time via a receiving interface. When the user operates the first trigger element 20 or the second input unit, the sensor captures the physical action and converts it into an electrical signal. Simultaneously with acquiring the trigger signal, the processor parses the characteristic identification information carried within it. This characteristic identification information is used to uniquely determine the trigger source, for example, by reading the status bit of a specific GPIO pin or parsing the ID field in the data packet to determine whether the current signal originates from the physical button responsible for mode switching or the physical button responsible for function triggering.

[0096] Step S2: Filter the trigger signal.

[0097] Specifically, before performing logical judgment, the processor first calls the software filtering unit to purify the original trigger signal. This involves using a sliding window algorithm to calculate the mean of the sampled sequence and remove environmental noise interference. Furthermore, the processor monitors the amplitude and duration of the filtered signal in real time. Only when the signal amplitude exceeds a preset threshold and the duration reaches a confirmation threshold (e.g., ms) is it determined to be a valid autonomous triggering intent.

[0098] Step S3: When the first identification information is identified, the operating mode of the control device is switched, and when the second identification information is identified, the instruction is parsed.

[0099] Specifically, the processor classifies valid intents based on feature identification information. If the feature identification information corresponds to the first trigger 20, it is determined that the preset mode switching conditions are met. At this time, the processor retrieves the preset mode loop sequence and updates the value of the current working mode status register, completing the jump to the target mode. If the feature identification information corresponds to the second input unit, it is determined to be a function trigger request, and the system enters the instruction parsing program.

[0100] Step S4: Based on the mapping logic corresponding to the current working mode, parse the trigger signal to generate instruction code, encapsulate the instruction code into an instruction signal, and output the instruction signal.

[0101] Specifically, after determining that a function trigger request has been received, the processor calls the corresponding logical mapping index based on the value of the current status register (i.e., the current mode). Specifically, based on the characteristics of the valid signal (such as the number of short presses, long presses, or double-clicks), a matching preset instruction code is retrieved from the instruction set of the current mode. The processor encapsulates the retrieved instruction code according to a preset communication protocol, adding fields such as a start bit, data field length, and check bits (such as CRC check), generating a standard instruction signal frame. The encapsulated signal frame is then sent to an external execution device (such as a nursing machine, mobile terminal, or television) through an output interface (such as a Bluetooth module or infrared transmitter).

[0102] Step S5: After outputting the command signal, perform a timing reset action.

[0103] Specifically, the processor synchronously executes a timing reset mechanism at the same time as or after the instruction is sent. The system timer records the timestamps of two consecutive valid trigger signals and calculates the difference. If the difference exceeds a preset duration threshold (indicating that the user has not operated for a long time), the processor will automatically reset the working state variables, such as closing the parsing channel of the second input unit or returning to the default working mode, to achieve static anti-accidental touch and ensure the safety of the device under constrained conditions.

[0104] This application also provides a computer-readable storage medium storing computer instructions. The storage medium may include, but is not limited to, read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), flash memory, or embedded multimedia card (eMMC). When the computer instructions are loaded and executed by a processor, the processor will implement the steps described in the above method embodiments, including but not limited to filtering of trigger signals, mode switching determination, instruction mapping parsing, and anti-mistouch state management.

[0105] Furthermore, this application also provides a computer program product. This program product can exist in the form of software code and can be downloaded, distributed, and loaded into the processor of a control device via a wired or wireless network environment. When executed by the processor, the program product coordinates the operation of control hardware resources (such as receiving interfaces, output interfaces, and timers) to achieve high-precision interactive control logic within physical constraints.

[0106] According to another aspect of the embodiments of this application, a wrist restraint device is also provided. The wrist restraint device includes a restraint member and the aforementioned auxiliary interaction device. Figure 11A schematic diagram of a wrist restraint device according to an embodiment of this application is shown, such as... Figure 11 As shown, the wrist restraint device includes a restraint member 51 and the aforementioned auxiliary interaction device. Taking a restraint glove as an example, the restraint member 51 has a receiving portion 52, which is, for example, a bag-like structure sewn into the palm or the inside of the fingertips of the glove. The auxiliary interaction device can be fixed in the receiving portion 52 via the connecting portion 12. When the user's wrist is restrained, the contact area of ​​the auxiliary interaction device precisely corresponds to the fingertip operation position. This structure ensures that the user can still trigger interaction through tiny fingertip movements even when the envelope of motion of the fingers is extremely restricted. The control device is electrically connected to the auxiliary interaction device via a wire or wireless link. In actual operation, the physical restraint strap restricts the overall displacement of the user's hand, but retains the space for tiny fingertip movements. The control device of this embodiment transforms these tiny fingertip movements into effective care needs or control commands through the aforementioned anti-mistouch logic and filtering algorithm. This integrated system transforms the restraint device, which originally only played a "restrictive role," into an intelligent terminal with "interactive functions," greatly improving the patient's ability to live independently without compromising the safety of the restraint.

[0107] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0108] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0109] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0110] 1) The auxiliary interaction device provided in this application embodiment is disposed on the constraint member 51, and the contact area is located on the fingertip operation position adapted to the restricted posture on the main body 11, so that the user can still complete the interactive operation through small finger movements even when the wrist is restricted, thus improving the convenience of operation in the restricted state. Through the cooperation of the first trigger member 20, multiple second input units and multiple working modes, the limited input operation can be mapped into a variety of control commands, realizing a richer interactive function with fewer input structures, and has the characteristics of "one button for multiple uses", which is conducive to meeting the diverse interactive needs in special nursing scenarios. In addition, the audio output device 41 provides audio feedback, so that the user can know the current mode or operation result in time, thereby improving the accuracy of interaction and reducing the possibility of false triggering and misjudgment, which is especially suitable for scenarios where the user's visual attention is limited or the activity space is limited.

[0111] 2) The embodiments of this application can provide users with assistance in emotion regulation, information acquisition and environmental control when the user's wrist is restricted through functions such as voice broadcast, music playback, infrared control and music performance, thereby enhancing user autonomy, improving the nursing experience and improving the convenience of interaction.

[0112] 3) Under extreme physical constraints such as "restricted wrist and only slight finger movement," the space envelope for finger movement is extremely small. It is precisely because of this extreme space limitation (inability to perform large-scale displacement) that a "one-button multi-function" mode switching is necessary. Furthermore, under these extreme physical constraints, if visual attention is lacking and users lack the ability to use visual coordination to assist finger triggering, using a technical solution that simply increases the number of triggers to increase the density of interactive information would exponentially increase the rate of accidental touches, reducing the efficiency of interactive input and increasing the difficulty of using the auxiliary interaction device.

[0113] 4) The mapping logic control method is a technical approach to achieve complex command output with a minimal number of physical keys. Through hierarchical interaction, it achieves control with minimal input. This mapping logic control method is an interaction logic specifically designed for the extreme physical constraints of "wrist restriction and only micro-finger movement," rather than a general interaction logic. Under such extreme physical constraints, without the mapping logic control method, patients would find it difficult to achieve high-density information expression and diverse external device operation control capabilities.

[0114] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An auxiliary interactive device, characterized in that, include: The housing has a body and a connecting part; the connecting part is used to connect the body to a constraint member, and the body is provided with a contact area for user finger operation; A trigger module, disposed on the contact area, includes a first input unit and a second input unit; wherein the first input unit and the second input unit are used to generate a trigger signal in response to the contact operation; as well as A trigger signal output interface is disposed on the main body and electrically connected to the trigger module. The trigger signal output interface is used to output a trigger signal having a first identification information of the first input unit or a second identification information of the second input unit. The first identification information and the second identification information have different data characteristics for external devices to distinguish them.

2. The auxiliary interaction device according to claim 1, characterized in that, The connecting part is used to detachably connect the body to the constraint member by means of mechanical coupling.

3. The auxiliary interactive device according to claim 1, characterized in that, Both the first input unit and the second input unit are selected from at least one of mechanical buttons, touch buttons, scroll wheel buttons, joysticks, linear touch bars, and touchpads.

4. The auxiliary interactive device according to claim 1, characterized in that, The second input unit includes multiple triggers, and different triggers are configured to generate trigger signals with different second identification information in response to the contact operation; wherein, the different second identification information is used for external devices to identify the trigger signals of different triggers so as to generate different instruction signals in the corresponding working mode.

5. A wrist restraint device, characterized in that, include: Constraints are used to restrain the user's wrists; as well as The auxiliary interaction device as described in any one of claims 1 to 4.

6. A control device, characterized in that, For an auxiliary interactive device as described in any one of claims 1 to 4, the control device comprises: A receiving interface is used to receive a trigger signal; wherein the trigger signal has a first identification information for identifying a first input unit or a second identification information for identifying a second input unit; The processor is configured to: switch the operating mode of the control device when a first identification information is identified from the trigger signal; and, when a second identification information is identified from the trigger signal, invoke mapping logic corresponding to the current operating mode, and parse the trigger signal based on the mapping logic to generate an instruction signal; and, An output interface is used to output the command signal.

7. The control device according to claim 6, characterized in that, The processor is further configured to: when the second identification information is identified from the trigger signal, invoke mapping logic corresponding to the current working mode, the mapping logic including instruction encoding corresponding to different second identification information; The instruction code corresponding to the trigger signal is matched according to the mapping logic; the instruction code is encapsulated into an instruction signal with a preset frame structure.

8. The control device according to claim 6, characterized in that, The control device has an active state and a listening state, and the processor is configured to control the control device to switch between the active state and the listening state; wherein, in the active state, the processor starts a parsing thread to parse the trigger signal; in the listening state, the processor shuts down the parsing thread.

9. The control device according to claim 8, characterized in that, The processor is configured to control the control device to switch between the active state and the listening state through preset logic. The preset logic includes link feature logic or encoding recognition logic. Under the link feature logic, the processor acquires link feature parameters, including signal amplitude, data frame frequency, signal strength, signal-to-noise ratio, bit error rate, packet loss rate, delay, or link connectivity. When the link feature parameters meet a preset activation threshold, the processor switches the control device from the listening state to the active state. Under the encoding recognition logic, the processor scans the received signal stream, and when a preset control switching flag is detected in the signal stream, the processor switches the control device from the listening state to the active state.

10. The control device according to claim 6, characterized in that, The processor has an anti-accidental touch state; in the anti-accidental touch state, the processor configures the working state variable to a first value; at the first value, the processor blocks the logic mapping channel corresponding to the second input unit; When the processor receives a trigger signal with first identification information, it updates the working state variable to a second value and opens the logic mapping channel corresponding to the second input unit in order to parse the trigger signal with second identification information; when the working state variable is the second value, it calls the system timer to record the arrival timestamps of two adjacent valid trigger signals. Calculate the difference between the timestamps, and when the difference exceeds a preset duration threshold, reset the working status variable to the first value.

11. The control device according to claim 6, characterized in that, The processor has a filtering unit configured to filter the trigger signal before parsing it based on the mapping logic to generate an instruction signal, wherein the filtering process includes the following steps: The original sampling points of the trigger signal are averaged using a sliding window algorithm to eliminate high-frequency glitches. A digital notch filter is set for a preset jitter frequency range. When the waveform characteristics of the trigger signal are found to match the jitter frequency range, the trigger signal is attenuated. as well as, The signal amplitude of the trigger signal is detected. When the duration of the signal amplitude exceeding the preset threshold reaches the confirmation duration threshold, the trigger signal is parsed based on the mapping logic to generate an instruction signal.

12. A control method, characterized in that, The control method, operating in any one of claims 6 to 11, comprises: Acquire a trigger signal and identify the first identification information and the second identification information in the trigger signal; When the first identification information is identified, the operating mode of the control device is switched, and when the second identification information is identified, instruction parsing is performed; and Based on the mapping logic corresponding to the current working mode, the trigger signal is parsed to generate an instruction signal, and the instruction signal is output.

13. A non-volatile computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the control method as described in claim 12.

14. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the control method as described in claim 12.

15. A wrist restraint system, characterized in that, include: The auxiliary interactive device as described in any one of claims 1 to 4; The control device as described in any one of claims 6 to 11 is communicatively connected to the auxiliary interaction device and is used to generate instruction signals in response to user touch operations; as well as A constraint is used to secure the auxiliary interaction device to the user's wrist.

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