Mobile terminal self-adaptive reminding method and system in severe cold environment

Abstract

The application provides a mobile terminal adaptive reminding method and system in a severe cold environment, collects interference signal characteristics, severe cold environment characteristics and operation data, obtains a communication strategy according to the severe cold environment characteristics and the interference signal characteristics, configures a reminding strategy by comprehensively considering the communication strategy and an operation limited type, configures a communication module to rebuild a communication link, realizes adaptive reminding according to a reminding module configured according to the reminding strategy, and uses a linkage device to assist in judging whether a user receives a message reminder. Through linkage design of the mobile terminal and the linkage device, fluctuation problems such as signal attenuation and clutter interference in the severe cold environment are continuously adapted, the perception barrier of cold-proof equipment is effectively broken, link interruption is avoided to guarantee key information transmission, the balance between the precision, reliability and equipment endurance of the mobile terminal reminding function in the severe cold environment is realized, and the practical performance and user experience of the mobile terminal in the severe cold environment are significantly improved.

Description

Technical Field

[0001] This application relates to the field of smart terminals, and more specifically, to a mobile terminal adaptive reminder method and system for use in extremely cold environments. Background Technology

[0002] In low-temperature scenarios such as polar expeditions, high-altitude exploration, and emergency rescue in frigid regions, three-proof equipment (waterproof, dustproof, and cold-proof equipment) serves as a key communication terminal. The stability of its communication function directly determines the reliability of the transmission of critical information such as work instructions and safety warnings. Low-temperature environments have a significant and unavoidable negative impact on the communication performance of mobile terminals, becoming the core issue restricting the reliability of equipment communication in frigid scenarios.

[0003] From the perspective of communication hardware, low temperature environments can lead to performance degradation of core components in the communication modules of rugged devices: low temperatures reduce the carrier migration rate of semiconductor components, resulting in a decrease in the signal transmission power and receiver sensitivity of RF chips; at the same time, the signal transmission medium inside the device will experience problems such as changes in dielectric constant and impedance mismatch at low temperatures, further aggravating signal transmission loss, resulting in a reduction in the communication coverage and signal strength of mobile terminals.

[0004] From the perspective of signal transmission, low temperature environments exacerbate the attenuation characteristics of wireless communication signals: on the one hand, the reduced speed of air molecules in low-temperature atmospheric environments enhances the absorption and scattering of electromagnetic waves, leading to a significant increase in path loss of radio frequency signals during transmission. This attenuation is particularly pronounced in commonly used communication frequency bands such as ultra-short waves and microwaves, where it can drastically shorten the effective communication distance between devices. On the other hand, the snow and ice cover, freezing fog, and other environmental factors that often accompany frigid scenarios can cause reflection and refraction interference to communication signals, damaging the integrity of the communication signals and leading to signal distortion and increased bit error rate.

[0005] Therefore, a communication solution is needed to address the above problems. Summary of the Invention

[0006] To address the problems existing in current technologies, this application provides an adaptive alerting method and system for mobile terminals in extremely cold environments. The specific solution is as follows:

[0007] An adaptive alert method for mobile terminals in frigid environments includes:

[0008] The system collects interference signal characteristics and cold environment characteristics of the current frigid environment through a preset mobile terminal and linked devices, and senses the user's operation data on the mobile terminal in real time.

[0009] Based on the characteristics of the severe cold environment, switch the basic strategy adapted to the severe cold environment, and adjust the communication parameters of the basic strategy in combination with the characteristics of the interference signal to obtain the communication strategy;

[0010] Based on the operation data and preset cold-proof equipment, the user's operation restriction type caused by the cold-proof equipment is deduced, and a reminder strategy is configured by combining the communication strategy and the operation restriction type.

[0011] Configure the communication module of the mobile terminal according to the communication strategy, and rebuild the communication link between the mobile terminal and the linkage device using the configured communication module;

[0012] The reminder module of the mobile terminal is configured according to the reminder strategy, and adaptive reminders are performed through the configured reminder strategy. Linked devices are used to assist in determining whether the user has received the message reminder.

[0013] In some specific embodiments, the characteristics of the interference signal include optical clutter signals generated by ice and snow reflection and communication signal attenuation fluctuations caused by low temperature; the characteristics of the severe cold environment include ambient temperature and wind force level; the operation data includes the user's click point offset, pressing pressure, operation completion time, accidental touch rate, and swipe trajectory continuity.

[0014] In some specific embodiments, the process of obtaining the communication strategy specifically includes:

[0015] The current cold weather level is determined by real-time collection of cold weather environmental characteristics. Based on the cold weather level, the basic communication mode, basic power consumption configuration and basic reminder priority of the corresponding level are matched from the preset strategy library to form the basic strategy.

[0016] Extract the clutter frequency range and attenuation rate from the characteristics of the interference signal, adjust the communication frequency band in the basic strategy based on the clutter frequency range, dynamically adjust the communication power and signal filtering bandwidth based on the attenuation rate, and configure a signal retransmission mechanism to form the communication strategy.

[0017] In some specific embodiments, the operation restriction type includes a restriction level and a restriction type. The restriction type includes touch operation restriction, voice operation restriction, and action triggering restriction. Different cold-proof equipment has corresponding restriction types and standard datasets corresponding to operation under no environmental interference.

[0018] The user's operation data in the current frigid environment is collected by the touch module and inertial measurement module of the mobile terminal. The deviation value between the standard dataset and the operation data is calculated, and the restriction level is classified based on the deviation value.

[0019] In some specific embodiments, the process of obtaining the reminder strategy specifically includes:

[0020] Based on the type of restriction, suitable reminder modalities are selected. If touch operation is restricted, tactile reminders and voice reminders are prioritized. If voice operation is restricted, tactile reminders and optical reminders are prioritized. If motion triggering is restricted, bone conduction reminders and low-frequency vibration reminders are prioritized. The intensity level and triggering sequence of the reminders are adjusted in combination with the restriction level to form a reminder strategy that includes a combination of reminder modalities, intensity levels, and triggering sequences.

[0021] In some specific embodiments, the linkage device includes a feedback acquisition module located at the user's head and focused on the user's gaze area;

[0022] Based on the reminder strategy, a feedback signal that can be collected by the feedback acquisition module is determined. The mobile terminal outputs the feedback signal while reminding the user according to the reminder strategy, so that the feedback signal can be collected by the feedback acquisition module when the user looks at the mobile terminal. The mobile terminal determines whether the user receives the reminder based on the collection result of the feedback signal by the linkage device.

[0023] In some specific embodiments, the reminder strategy further includes: when it is determined that the user has not received a message reminder, increasing the reminder intensity according to a preset gradient, and increasing the number of reminder modes; if no user feedback is detected after a preset number of upgrades, an emergency reminder mode is triggered, wherein the emergency reminder mode prioritizes calling reminder modes with low power consumption and strong penetration.

[0024] In some specific embodiments, after the communication link is rebuilt, the method further includes: real-time acquisition of the signal attenuation rate and data packet loss rate of the communication link; when the signal attenuation rate exceeds a preset attenuation threshold or the data packet loss rate exceeds a preset loss threshold, the communication parameter adjustment process is re-triggered to dynamically optimize the communication strategy and maintain the stability of the communication link.

[0025] In some specific embodiments, the reminder strategy includes reminder modes, such as vibration reminders, bone conduction reminders, light reminders, display screen reminders, and voice reminders.

[0026] An adaptive alert system for mobile terminals in frigid environments includes:

[0027] The signal acquisition unit is used to collect the interference signal characteristics and cold environment characteristics of the current cold environment in collaboration with the preset mobile terminal and the linkage device, and to sense the user's operation data on the mobile terminal in real time.

[0028] A communication strategy unit is used to switch a basic strategy adapted to the severe cold environment according to the characteristics of the severe cold environment, and to adjust the communication parameters of the basic strategy in combination with the characteristics of the interference signal to obtain a communication strategy.

[0029] The reminder strategy unit is used to infer the type of operation restriction caused by the user's operation due to the obstruction of the cold protection equipment based on the operation data and the preset cold protection equipment, and to configure a reminder strategy in combination with the communication strategy and the type of operation restriction.

[0030] A communication configuration unit is used to configure the communication module of the mobile terminal according to the communication strategy, and to rebuild the communication link between the mobile terminal and the linkage device using the configured communication module.

[0031] The reminder configuration unit is used to configure the reminder module of the mobile terminal according to the reminder policy, perform adaptive reminders through the configured reminder policy, and use linkage devices to assist in determining whether the user has received the message reminder.

[0032] Beneficial Effects: This application proposes an adaptive reminder method and system for mobile terminals in frigid environments. Through the coordinated design of the mobile terminal and linked devices, it continuously adapts to fluctuations such as signal attenuation and noise interference in frigid environments, effectively overcoming the perception barriers of cold-weather equipment, avoiding link interruptions to ensure the transmission of critical information, and accurately determining the user's reception status to avoid misjudgment. It precisely adapts to the actual needs of special frigid scenarios, achieving a balance between the accuracy and reliability of the mobile terminal reminder function and the device's battery life in frigid environments. It effectively solves the pain points of unstable communication, easy obstruction of reminders, and excessive power consumption of devices in frigid scenarios, significantly improving the practical performance of mobile terminals and the user experience in frigid environments.

[0033] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a flowchart illustrating the adaptive reminder method;

[0036] Figure 2 This is a schematic diagram illustrating the principle of the adaptive reminder method;

[0037] Figure 3 This is a schematic diagram of the reminder strategy generation process;

[0038] Figure 4 This is a diagram illustrating the triggering process of the emergency alert mode;

[0039] Figure 5 This is a schematic diagram of the adaptive reminder system module of this application.

[0040] Reference numerals in the attached figures: 1-Signal acquisition unit; 2-Communication strategy unit; 3-Alert strategy unit; 4-Communication configuration unit; 5-Alert configuration unit. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0042] This application proposes an adaptive alert method for mobile terminals in frigid environments, solving the problems of unreliable communication and difficulty in detecting alerts caused by environmental interference and obstruction from cold-weather gear. This significantly improves the practicality and reliability of rugged devices in frigid scenarios. A flowchart of the adaptive alert method for mobile terminals is attached. Figure 1 As shown in the attached diagram, the principle is as follows: Figure 2 As shown, the specific solution is as follows:

[0043] An adaptive alert method for mobile terminals in frigid environments includes:

[0044] 101. Collect interference signal characteristics and cold environment characteristics of the current severe cold environment through preset mobile terminals and linkage devices, and perceive user operation data of mobile terminals in real time.

[0045] 102. Based on the characteristics of the frigid environment, switch the basic strategy to adapt to the frigid environment, and adjust the communication parameters of the basic strategy in combination with the characteristics of interference signals to obtain the communication strategy;

[0046] 103. Based on operational data and preset cold-weather equipment, deduce the types of operational restrictions caused by the user's cold-weather equipment, and configure reminder strategies by combining communication strategies and operational restriction types.

[0047] 104. Configure the communication module of the mobile terminal according to the communication strategy, and rebuild the communication link between the mobile terminal and the linked device using the configured communication module;

[0048] 105. Configure the reminder module of the mobile terminal according to the reminder policy, perform adaptive reminders through the configured reminder policy, and use linked devices to help determine whether the user has received the message reminder.

[0049] The mobile terminal in this application is a rugged device, including a rugged watch and a rugged mobile phone.

[0050] The core of step 101 is to comprehensively acquire key characteristics of the current frigid environment and user operation data through the collaborative work of the preset mobile terminal and the linked equipment, providing basic data support for subsequent strategy formulation. This application utilizes the functional complementarity of the mobile terminal and the linked equipment to ensure the integrity and accuracy of the collected data.

[0051] In some specific embodiments, the characteristics of the interference signal include optical clutter signals generated by snow and ice reflections and communication signal attenuation fluctuations caused by low temperatures. The mobile terminal activates the temperature sensor, pressure sensor, touch module, inertial measurement module, and communication monitoring module to collect ambient temperature, pressing pressure, operation trajectory and duration, false touch rate, and communication signal attenuation fluctuations, respectively. The linked device activates the optical sensor, wind speed sensor, and infrared sensor to collect optical clutter signals, wind speed, and snow cover, respectively. The two devices aggregate the collected data in real time to the mobile terminal's processor through a preset initial communication link to form a complete initial dataset, ensuring that subsequent steps can be based on this dataset for strategy calculation.

[0052] Interference signal characteristics refer to the abnormal signal attributes that affect device communication and sensing in frigid environments. Optical clutter signals reflected by ice and snow can interfere with the device's optical sensing module. For example, strong light reflection from snow can cause deviations in the perceived brightness of the mobile terminal screen, making it impossible for the user to recognize the reminder light effect. Its characteristic parameters can be collected by the optical sensor of the linked device. When the temperature drops, the fluctuation of the signal transmission strength of the device's communication module with temperature changes can be obtained by monitoring the signal strength changes in real time through the mobile terminal's communication module and calculating the fluctuation amplitude per unit time.

[0053] The characteristics of a severe cold environment include ambient temperature, wind speed, and snow cover. Ambient temperature directly affects the hardware performance of the equipment and is collected by the temperature sensor on the mobile terminal. Wind speed affects the signal transmission stability of the equipment and is collected by the wind speed sensor of the linked equipment. Snow cover refers to the thickness and extent of snow on the ground or equipment surface and is collected by the infrared sensor of the linked equipment. Collecting these environmental characteristics provides an environmental basis for subsequent handover and adaptation strategies.

[0054] Operational data includes user click offset, press pressure, operation completion time, false touch rate, and swipe trajectory continuity. Click offset is the distance deviation between the target position on the device screen and the actual click position. For example, when a user wears thick winter gloves and clicks a screen button, the offset may increase from 1mm at room temperature to 5mm, obtained by recording the coordinate deviation through the mobile terminal's touch sensor. Press pressure is the force with which the user presses the screen or button. In low temperatures, the user's finger dexterity decreases, and the pressing pressure may increase from 50g at room temperature to 100g, collected by the mobile terminal's pressure sensor. Operation completion time is the time it takes for the user to complete a full operation. False touch rate is the proportion of invalid operations to the total number of operations. Swipe trajectory continuity is the smoothness of the trajectory when the user swipes the screen. This data is collected in real time through the mobile terminal's touch module and inertial measurement module. Its purpose is to reflect the degree to which user operation is hindered by winter clothing, providing data support for subsequent deduction of operation restriction types.

[0055] Step 102 first matches a basic strategy based on environmental characteristics, then adjusts communication parameters in conjunction with real-time interference signals to ensure communication stability and avoid communication interruptions or delays caused by fixed strategies in complex and frigid environments. By generating a communication strategy adapted to the current frigid environment and interference status, a clear basis is provided for the subsequent communication module configuration and communication link reconstruction in step 104, ensuring effective data transmission between the mobile terminal and the linked devices.

[0056] The implementation involves two steps. The first step is matching the basic strategy. The mobile terminal's strategy analysis unit, based on the severe cold environment characteristics collected in step 101 (e.g., when the temperature is below -30℃ and the wind force is ≥8), determines it as severe cold. It then retrieves the corresponding basic strategy from the preset strategy library. This basic strategy includes the basic communication mode adapted to the level, such as prioritizing the LoRa communication mode with strong anti-interference capabilities; basic power consumption configuration, such as limiting the maximum power consumption of the communication module to no more than 30% of the total power consumption of the device; and basic reminder priority, such as setting the priority of reminder information to the highest by default under severe cold conditions. The second step is adjusting the communication parameters. The strategy analysis unit extracts the clutter frequency from the characteristics of the interference signal. For example, if ice and snow reflection clutter is concentrated in the 500-800MHz range, the communication frequency band in the basic strategy is adjusted to a clutter-free band, such as 900-1200MHz. At the same time, based on the signal attenuation rate, such as 10% attenuation per minute, it is determined to be a rapid attenuation and the communication power is dynamically adjusted. The faster the attenuation, the more the power is appropriately increased, but the maximum is no more than 80% of the device's rated communication power. The signal filtering bandwidth is also adjusted. When the attenuation is fast, the filtering bandwidth is reduced to enhance the signal's anti-interference capability. A signal retransmission mechanism is also configured. For example, when the attenuation rate is fast, it is set to retransmit once every 200ms, and when the attenuation is slow, it is set to retransmit once every 500ms. Finally, these are integrated to form a communication strategy that can be directly used to configure the communication module.

[0057] Step 103 involves deriving the type of operational restriction and configuring the alert strategy. There are discrepancies between user operation data and the standard operation data of the pre-set cold-weather gear. The magnitude and type of these discrepancies directly reflect the degree and type of operational restriction. Simultaneously, the stability of the communication strategy determines the priority of alert information transmission. Both factors must be combined to ensure that the alerts can penetrate the barriers of the cold-weather gear and be effectively perceived by the user.

[0058] By generating personalized reminder strategies that adapt to both restricted operation and communication states, the problem of poor effectiveness of traditional single reminder modalities under the obstruction of cold-weather gear is solved. The implementation consists of two parts:

[0059] The first part derives the types of operational limitations. The mobile terminal's limitation analysis unit calls a preset cold-weather equipment database, which stores standard operation datasets corresponding to different cold-weather equipment, such as thickened cold-weather gloves and full-coverage cold-weather clothing. The standard for operation while wearing ordinary gloves at room temperature is a click-and-place offset ≤2mm and an operation completion time ≤1s. The current operation data collected in 101 steps is compared with the corresponding standard dataset for the cold-weather equipment. By calculating the deviation value (e.g., when the actual click-and-place offset is 5mm and the standard is 2mm, a deviation of 3mm is used to classify the limitation level), for example, a deviation of 0-2mm is considered mild limitation, 2-5mm is moderate limitation, and above 5mm is severe limitation. Simultaneously, the limitation type is determined based on operation data characteristics. For example, a large click-and-place offset or discontinuous swipe trajectory indicates touch operation limitation; a voice command recognition success rate below 50% indicates voice operation limitation; and an action trigger response delay exceeding 1.5s indicates action trigger limitation.

[0060] The second part is configuring the reminder strategy. The reminder strategy unit combines the communication strategy and the type of operation restriction. If the signal transmission stability in the communication strategy is low, for example, the data packet loss rate exceeds 8%, the reminder information is set to the highest priority to ensure priority delivery. If the restriction is for touch operation, reminder modes that rely on touch feedback are excluded, and tactile reminders such as low-frequency vibration and voice reminders such as bone conduction voice are prioritized. If the restriction is moderate or severe, the reminder intensity is increased, for example, the vibration frequency is increased from 20Hz to 40Hz and the voice volume is increased from 40dB to 60dB. At the same time, the triggering sequence is adjusted. For example, in the case of severe restriction, a cyclic triggering mode of 3 seconds of vibration plus 2 seconds of voice broadcast is set. Finally, a complete reminder strategy is formed, which includes reminder mode combination, intensity level, triggering sequence and priority.

[0061] Step 104 involves configuring the communication module and rebuilding the communication link. The parameters in the communication strategy need to be translated into the actual operating parameters of the communication module to establish an environment-adaptable communication connection, ensuring stable and reliable data interaction between the mobile terminal and linked devices, such as the transmission of alert feedback signals. This translates the abstract communication strategy into a practically usable communication link, providing hardware support for subsequent alert information transmission and reception confirmation.

[0062] The mobile terminal's communication configuration unit reads parameters from the communication strategy, including communication frequency band, communication power, filtering bandwidth, and retransmission mechanism. These parameters are then written into the registers of communication modules, such as the RF communication module and the wireless transmission module, via a hardware interface to complete the module configuration. For example, the RF module's operating frequency band is set to 900-1200MHz, the transmit power is adjusted to 15dBm, and the filtering bandwidth is set to 200kHz. After configuration, the communication module initiates a communication connection request to the linked device. The linked device's communication module responds to the request in accordance with a preset protocol, consistent with the mobile terminal, establishing an initial communication link. Subsequently, the mobile terminal checks link stability by sending test data packets, such as a 1KB test packet every 100ms. If the data packet loss rate is ≤3% and the latency is ≤50ms, the link is considered successfully established. If the stability standard is not met, the communication strategy parameters are reread and fine-tuned, for example, by appropriately increasing the communication power by 5dBm, and the connection is re-initiated until the link stabilizes, completing the reconstruction of the communication link.

[0063] Step 105 involves implementing adaptive alerts and assisting in determining the reception status. Configuring the alert module according to the alert strategy ensures that the alert output aligns with the user's restricted operation state. The linked device can accurately determine whether the user has actually received the alert by sensing the user's gaze and feedback signals, avoiding misjudgments caused by the mobile terminal's sole judgment, such as judging receipt even when the user hasn't seen it. By completing the final transmission and reception confirmation of the alert, a closed loop of alerts and feedback is formed, providing a basis for subsequent handling of unreceived alerts, such as alert escalation.

[0064] The mobile terminal's reminder configuration unit configures corresponding reminder modules based on the modal combinations and intensity levels in the reminder strategy. For example, it triggers the vibration module to vibrate at a frequency of 40Hz, activates the bone conduction module to broadcast the reminder content at a volume of 60dB, and activates the red light module to flash at a frequency of 2Hz. Each reminder module executes reminder operations synchronously or in accordance with the trigger sequence, ensuring that reminder information is delivered to the user in multiple dimensions.

[0065] Linked devices, such as smart head-mounted goggles, use feedback acquisition modules, i.e., optical sensors, to capture the user's gaze trajectory in real time, determine whether the user's gaze is fixed on the reminder area of ​​the mobile terminal, and simultaneously collect feedback signals output by the mobile terminal, such as specific signals for reminder synchronization. If the gaze fixation condition is met and the feedback signal is successfully collected, the mobile terminal determines whether the user has received the reminder based on the received signal, thus completing the entire reminder process.

[0066] In some specific embodiments, the process of acquiring the communication strategy includes: determining the current cold weather level by collecting real-time cold weather environmental characteristics; matching the corresponding basic communication mode, basic power consumption configuration, and basic alert priority from a preset strategy library based on the cold weather level to form a basic strategy; extracting the clutter frequency range and attenuation rate from the interference signal characteristics; adjusting the communication frequency band in the basic strategy based on the clutter frequency range; dynamically adjusting the communication power and signal filtering bandwidth based on the attenuation rate; and configuring a signal retransmission mechanism to form the communication strategy. The core of acquiring the communication strategy is to achieve deep adaptation between the strategy and the cold weather environment and interference characteristics through a two-layer logic of environmental level matching basic framework + real-time interference dynamic optimization. This ensures both communication stability and avoids excessive consumption of equipment power consumption. The specific process can be described from two aspects.

[0067] The basic strategy is formed based on the differences in core communication requirements of devices corresponding to different levels of cold weather. First, the level needs to be defined by environmental characteristics, and then a suitable basic parameter framework is retrieved from a pre-set strategy library. In implementation, a level determination model is first established based on the cold weather environmental characteristics collected in 101 steps. "Ambient temperature -10℃~-20℃, wind force 3~5, snow cover ≤30%" is determined as mild cold weather; "-20℃~-30℃, wind force 6~8, snow cover 30%~60%" is determined as moderate cold weather; and "below -30℃, wind force ≥9, snow cover >60%" is determined as severe cold weather. The pre-set strategy library is a standardized set of parameters that has been experimentally verified and stored in advance. Basic communication modes are adapted according to the level (low-power Bluetooth mode for mild cold weather, NB-IoT mode for moderate cold weather, and LoRa mode with stronger anti-interference for severe cold weather), basic power consumption configuration is limited according to the level, and basic reminder priority increases with the level. By matching the level with the strategy library, a basic strategy that meets the basic requirements of the current environment is directly formed.

[0068] The second step involves optimizing and forming the communication strategy. The principle behind this step is that real-time interference signals can undermine the effectiveness of the basic strategy. Therefore, communication parameters need to be adjusted specifically, and a retransmission mechanism needs to be added to counteract the interference. In implementation, key parameters are first extracted from the characteristics of the interference signal: the clutter frequency range is acquired through a combination of optical sensors and an RF detector, and the attenuation rate is calculated by continuously monitoring the strength of 10 sets of communication signals. Based on the clutter frequency range, the communication frequency band is adjusted to avoid overlapping areas with clutter, thus preventing direct interference from clutter. Simultaneously, a signal retransmission mechanism is configured: the retransmission interval is set to 500ms when the attenuation rate is slow and 200ms when the attenuation rate is fast. If three consecutive retransmissions fail, the interval is further shortened by 50ms until a successful retransmission or the maximum number of retransmissions is reached. Finally, the adjusted communication frequency band, power, filtering bandwidth, and retransmission mechanism are integrated into the basic strategy to form a complete communication strategy.

[0069] In some specific embodiments, the operational restriction type includes a restriction level and a restriction type. The restriction type includes touch operation restriction, voice operation restriction, and action triggering restriction. Different cold-weather gears have corresponding restriction types preset and standard datasets corresponding to operations under no environmental interference. The user's operation data in the current severe cold environment is collected by the touch module and inertial measurement module of the mobile terminal. The deviation value between the standard dataset and the operation data is calculated, and the restriction level is classified based on the deviation value. By using preset benchmark data and real-time operation comparison, the dimension and degree of the impact on the user's operation caused by the obstruction of cold-weather gear are accurately identified, providing a basis for subsequent configuration of appropriate reminder strategies.

[0070] The restricted operation types include two parts: the restricted level and the restricted type. The restricted type focuses on the specific dimensions affected by the operation and is divided into three categories: touch operation restricted, voice operation restricted, and action triggering restricted. Touch operation restricted manifests as excessive deviation of the user's click point, abnormal pressing pressure (too light or too heavy), and broken swipe trajectory, among other touch interaction issues. Voice operation restricted manifests as low voice command recognition success rate and long command response delay, among other voice interaction issues. Action triggering restricted manifests as no response or erroneous response to preset action commands on the device, among other action interaction issues.

[0071] Meanwhile, corresponding restrictions and standard datasets were preset for different types of cold-weather gear. For example, thick cold-weather gloves restrict touch operation because they obstruct finger tactile sensation; full-coverage cold-weather masks restrict voice operation because they cover the mouth and nose and affect voice transmission; and heavy cold-weather clothing restricts the range of limb movement, thus restricting action triggering. The standard dataset is baseline data obtained by having test subjects wear the corresponding cold-weather gear and perform multiple standard operations in a normal temperature, interference-free environment, and removing outliers after collecting the operation data. It includes parameters such as the average click point offset, the range of pressing pressure, the threshold for operation completion time, and the baseline for voice recognition success rate.

[0072] Next, real-time operation data acquisition and deviation calculation are performed. The touch module of the mobile terminal collects the user's click point coordinates, pressing pressure values, and sliding trajectory coordinate sequences in the current frigid environment. The inertial measurement module collects the acceleration and angular velocity data of the limb movements during operation, and integrates them to form the current operation data. Then, the current operation data is compared with the standard dataset of the corresponding cold-proof equipment to calculate the deviation value. First, the corresponding parameters in the two types of data are normalized to eliminate the difference in the dimensions of different parameters. Then, based on the influence weight of each parameter on the operation effect, the comprehensive deviation value is calculated.

[0073] Finally, the restriction level is determined based on the deviation value. The restriction level is divided into three levels according to the magnitude of the deviation value: mild restriction, moderate restriction, and severe restriction. When the comprehensive deviation value is between 0-30%, it is judged as mild restriction. At this time, although the user operation has deviation, it does not affect the use of core functions. When the comprehensive deviation value is between 30%-60%, it is judged as moderate restriction. At this time, the user operation deviation has caused some functions to require repeated operations to complete. When the comprehensive deviation value exceeds 60%, it is judged as severe restriction. At this time, the user operation deviation has seriously affected the use of functions and may even make it impossible to complete basic operations. This completes the full determination of the operation restriction type.

[0074] In some specific embodiments, the process of obtaining the reminder strategy includes: selecting suitable reminder modalities based on the type of restriction; if touch operation is restricted, tactile reminders and voice reminders are prioritized; if voice operation is restricted, tactile reminders and optical reminders are prioritized; and if motion triggering is restricted, bone conduction reminders and low-frequency vibration reminders are prioritized. The intensity level and triggering sequence of the reminders are adjusted based on the restriction level to form a reminder strategy that includes a combination of reminder modalities, intensity levels, and triggering sequences. The generation process of the reminder strategy is attached. Figure 3 As shown.

[0075] The core of the alert strategy is to accurately adapt the modality based on the type of operation restriction and dynamically optimize the parameters of the restriction level, so as to ensure that the alert signal can break through the barrier of cold-proof equipment and adapt to the user's operation restriction state, thus achieving efficient perception.

[0076] First, filter the appropriate reminder modalities according to the restricted type.

[0077] The core reason for the limitations of touch operation is that equipment such as cold-weather gloves reduces the user's touch accuracy and weakens the touch feedback. Therefore, haptic and voice prompts, which are not affected by touch actions, should be prioritized. Haptic prompts transmit physical sensing signals through the device's built-in vibration module, while voice prompts use bone conduction or high-fidelity speakers to transmit audio information. Neither of these requires precise touch from the user to be received.

[0078] Voice operation is often limited because masks and face shields cover the mouth and nose in cold environments, reducing the recognition rate of voice commands, or environmental noise interferes with voice reception. Therefore, tactile and optical cues are preferred. Optical cues emit high-frequency flashing or specific color light signals through the device's display screen, indicator lights, or external optical modules, forming a dual stimulation of vision and touch with tactile cues, ensuring that users can effectively perceive in scenarios where they cannot rely on voice.

[0079] Limited motion triggering is caused by the heavy cold-weather gear restricting the user's range of motion and flexibility, resulting in delayed or failed motion triggering responses. Therefore, bone conduction alerts and low-frequency vibration alerts are preferred. Bone conduction alerts transmit audio signals through the skull and are not affected by ear canal blockage. Low-frequency vibration alerts use a low-frequency, high-amplitude vibration mode with strong penetration, which can be clearly perceived by the user even under heavy gear coverage, and can trigger feedback without large limb movements.

[0080] Subsequently, the intensity level and triggering sequence of the alerts were adjusted based on the level of restriction. In the mild restriction state, user operation was minimally affected, so the alert intensity was set to the basic level. The tactile alert vibration frequency was controlled at 20-30Hz with an amplitude of 5-8mm, the voice alert volume at 40-50dB, and the optical alert flashing frequency at 2-3Hz. The triggering sequence adopted a single-trigger mode, with the tactile alert lasting 1-2 seconds and the voice or optical alert simultaneously lasting 2-3 seconds, ensuring effective alerts without causing interference. In the moderate restriction state, user operation was significantly affected, so the alert intensity was increased to the medium level, and the vibration frequency... The frequency is adjusted to 30-40Hz, amplitude to 8-12mm, voice volume to 50-60dB, and optical alert flashing frequency to 3-5Hz. The triggering sequence adopts a short-interval cycle mode, i.e., "trigger 3 seconds - pause 2 seconds - cycle 2 times," to enhance the presence of the alert. In severely restricted user conditions, where operation is significantly hindered, the alert intensity is increased to a high level, with a vibration frequency of 40-50Hz, amplitude to 12-15mm, voice volume to 60-70dB, and optical alerts using a high-frequency flashing and bright light mode. The triggering sequence adopts a non-interval cycle mode until the user reports successful reception. At the same time, the modal combination timing is optimized to avoid user fatigue caused by prolonged stimulation of a single modality.

[0081] Finally, the selected reminder modal combinations, the intensity parameters matching the restriction level, and the optimized trigger timing are integrated to form a logically coherent and highly adaptable complete reminder strategy.

[0082] In some specific embodiments, the linkage device includes a feedback acquisition module located on the user's head and focused on the user's gaze area; it determines the feedback signals that can be acquired by the feedback acquisition module according to the reminder strategy, and outputs the feedback signals simultaneously with the reminder via the mobile terminal, so that the feedback signals can be acquired by the feedback acquisition module when the user looks at the mobile terminal; the mobile terminal determines whether the user has received the reminder based on the acquisition results of the feedback signals by the linkage device. By accurately capturing the correlation between the user's gaze behavior and the synchronous feedback signals through the head feedback acquisition module, the problem of misjudgment caused by the traditional reliance on the device itself to determine the reminder reception status is solved.

[0083] Feedback acquisition modules for linked devices are typically integrated into wearable head devices such as smart goggles and head-mounted assistive sensing devices. The module's installation position must precisely correspond to the user's gaze area. For example, the optical sensor inside the lens of a smart goggle or the image acquisition unit below the forehead of a head-mounted device. This ensures that when the user is naturally looking at a mobile terminal such as a handheld terminal or a wrist-worn device, the module's detection range can completely cover the mobile terminal's alert output area, avoiding signal loss due to acquisition angle deviation.

[0084] The determination of the feedback signal needs to be deeply adapted to the reminder strategy to ensure that the signal type is coordinated with the reminder modality and can be effectively recognized by the acquisition module. For example, if the reminder strategy includes red light flashing (optical reminder) and bone conduction voice (acoustic reminder), then the feedback signal will be set to a specific pulse optical signal with the same frequency as the red light flashing.

[0085] The output of the feedback signal is executed synchronously with the reminder operation. When the mobile terminal starts the corresponding reminder module according to the reminder strategy, it outputs a preset feedback signal through the built-in signal transmission unit to ensure that when the user looks at the mobile terminal because of the reminder content, the feedback signal is exactly within the detection window of the acquisition module. This avoids misjudgment caused by timing deviations that may result in the feedback signal ending when the user looks at the device.

[0086] When a user looks at the mobile terminal, the feedback signal enters the effective detection range of the acquisition module. The module performs preliminary verification on the acquired signal, and after successful verification, it transmits the acquisition results to the mobile terminal in real time through a stable communication link.

[0087] After receiving the collection results, the mobile terminal determines the notification reception status based on preset judgment conditions: if the collection results show that the feedback signal has been successfully captured, it is determined that the user has received the notification, and the current notification operation is stopped; if no collection results are received within a preset time, or the received collection results show that the signal has not passed verification, it is determined that the user has not received the notification.

[0088] In some specific embodiments, the reminder strategy further includes: when it is determined that the user has not received a message reminder, increasing the reminder intensity according to a preset gradient, and simultaneously increasing the number of reminder modalities; if no user feedback is detected after a preset number of upgrades, an emergency reminder mode is triggered, which prioritizes low-power and highly penetrating reminder modalities. By gradually improving reminder awareness through gradient enhancement and modal expansion, initial high power consumption or excessive reminders are avoided. Simultaneously, when multiple upgrades are ineffective, the system switches to a low-power, high-penetration emergency mode, balancing reminder effectiveness and device battery life. The triggering process for the emergency reminder mode is shown in the attached figure. Figure 4 As shown.

[0089] When the linked device reports that it has not collected the user's received signal and the mobile terminal determines that the user has not received the reminder, the preset gradient upgrade process is immediately initiated. The preset gradient is usually divided into 3-4 levels, and each upgrade simultaneously increases the reminder intensity and the number of reminder modes. For example, the first level upgrade increases the basic reminder intensity by 30% while maintaining the original 1 reminder mode; the second level upgrade increases the intensity by another 20% on the basis of the first level and adds a mode with stronger penetration.

[0090] The preset number of upgrades is generally set to 3, which avoids wasting power due to frequent upgrades and ensures sufficient number of upgrades to gradually enhance the reminder effect. If the linked device still does not report a signal received by the user, it means that the regular upgrade cannot overcome environmental or equipment obstacles. At this time, the emergency reminder mode is immediately triggered: the emergency mode prioritizes low-power and highly penetrating reminder modes, such as bone conduction voice and low-frequency vibration, while suspending unnecessary functions of the device to save power and ensure that the emergency reminder can be continuously output.

[0091] In some specific embodiments, after rebuilding the communication link, the process further includes: real-time acquisition of the signal attenuation rate and data packet loss rate of the communication link; when the signal attenuation rate exceeds a preset attenuation threshold or the data packet loss rate exceeds a preset loss threshold, the communication parameter adjustment process is re-triggered to dynamically optimize the communication strategy and maintain the stability of the communication link. In frigid environments, communication link parameters are easily affected by factors such as low temperature and snow reflection, requiring a closed-loop process of real-time monitoring, threshold judgment, and dynamic adjustment to continuously optimize the communication strategy, avoid link interruptions due to parameter drift, and ensure the reliable transmission of critical data such as alert feedback signals and emergency information.

[0092] After the communication link is re-established, the link monitoring unit of the mobile terminal will initiate a continuous data acquisition process, capturing link parameters in real time through the signal detection chip built into the communication module: the signal attenuation rate is calculated by continuously acquiring the signal strength values ​​of two adjacent time points; the data packet loss rate is calculated by statistically analyzing the total number of test data packets sent per unit time and the number of acknowledgment data packets returned by the receiving end (linked device). The acquired parameters are transmitted in real time to the strategy optimization unit of the mobile terminal and compared with preset thresholds.

[0093] The preset thresholds need to be dynamically set based on the current cold weather level to avoid a single threshold failing to adapt to different environmental interference intensities: Under mild cold weather, the preset threshold for signal attenuation rate is set to 5 dBm / s, and the preset threshold for data packet loss rate is set to 8%; under moderate cold weather, the attenuation rate threshold is increased to 8 dBm / s, and the loss rate threshold is increased to 12%; under severe cold weather, the attenuation rate threshold is set to 12 dBm / s, and the loss rate threshold is set to 15%. When any parameter is detected to exceed the preset threshold for the corresponding level, the strategy optimization unit immediately triggers the communication parameter adjustment process and initiates dynamic optimization.

[0094] If only the signal attenuation rate exceeds the threshold, it indicates that the current communication power or filtering bandwidth cannot withstand environmental attenuation. The optimization unit will increase the communication power by 10%-15% within the power consumption limit of the basic strategy, while reducing the signal filtering bandwidth. If only the packet loss rate exceeds the threshold, it indicates that the signal transmission is severely affected by clutter. The optimization unit will rescan the clutter frequency range of the current environment, adjust the communication frequency band to a new clutter-free range, and shorten the signal retransmission interval. If both parameters exceed the threshold, the above two types of adjustment operations will be performed simultaneously, and the adjustment range will be controlled within the maximum range allowed by the basic strategy.

[0095] After parameter adjustment, the strategy optimization unit generates a new communication strategy, rewrites it into the communication module through the communication configuration unit, and updates the link parameters. Simultaneously, the link monitoring unit shortens the acquisition interval to 200ms, continuously monitoring the adjusted signal attenuation rate and data packet loss rate. If both parameters fall back to within the preset threshold within one second, the optimization is considered effective, and the normal acquisition interval is restored. If the adjusted parameters still exceed the threshold, the above adjustment process is repeated, up to a maximum of three times. If the link parameters still fail to meet the standards after three adjustments, the optimization unit determines that the current basic communication mode is no longer suitable for the environment, triggers a basic communication mode switch, and re-matches the basic strategy based on the new basic communication mode, then performs parameter adjustments again until the link parameters stabilize, ensuring the communication link continuously supports the reliable transmission of alert feedback signals.

[0096] In some specific embodiments, the reminder strategy includes reminder modalities, including vibration reminders, bone conduction reminders, light reminders, display reminders, and voice reminders. Vibration reminders transmit information through tactile vibrations, adapting to scenarios where cold-weather gear obstructs the view; bone conduction reminders rely on the skull to conduct sound, requiring no air medium and consuming low power; light reminders provide intuitive prompts with light of specific frequencies or colors, resisting interference from ambient light; display reminders show specific message content through text or icons, providing clear information; voice reminders broadcast messages with sound waves, directly transmitting voice information. These multiple modalities can be used individually or in combination to adapt to different perception needs in harsh cold environments.

[0097] This application also proposes an adaptive alert system for mobile terminals in extremely cold environments, the system's modules are shown in the attached diagram. Figure 5 As shown, the reminder system includes:

[0098] Signal acquisition unit 1 is used to collect the interference signal characteristics and cold environment characteristics of the current cold environment in collaboration with the preset mobile terminal and the linkage device, and to sense the user's operation data on the mobile terminal in real time.

[0099] Communication strategy unit 2 is used to switch the basic strategy adapted to the severe cold environment according to the characteristics of the severe cold environment, and adjust the communication parameters of the basic strategy in combination with the characteristics of interference signals to obtain the communication strategy.

[0100] The reminder strategy unit 3 is used to infer the type of operation restriction caused by the user's operation due to the obstruction of the cold-proof equipment based on the operation data and the preset cold-proof equipment, and to configure the reminder strategy by combining the communication strategy and the operation restriction type.

[0101] Communication configuration unit 4 is used to configure the communication module of the mobile terminal according to the communication strategy, and to rebuild the communication link between the mobile terminal and the linkage device using the configured communication module.

[0102] The reminder configuration unit 5 is used to configure the reminder module of the mobile terminal according to the reminder policy, perform adaptive reminders through the configured reminder policy, and use the linkage device to help determine whether the user has received the message reminder.

[0103] This application proposes an adaptive reminder method and system for mobile terminals in frigid environments. Through the coordinated design of the mobile terminal and linked devices, it continuously adapts to fluctuations such as signal attenuation and noise interference in frigid environments, effectively overcoming the perception barriers of cold-weather equipment, avoiding link interruptions to ensure the transmission of critical information, and accurately determining the user's reception status to avoid misjudgment. It precisely adapts to the actual needs of special frigid scenarios, achieving a balance between the accuracy and reliability of the mobile terminal reminder function and the device's battery life in frigid environments. It effectively solves the pain points of unstable communication, easy obstruction of reminders, and excessive power consumption of devices in frigid scenarios, significantly improving the practical performance of mobile terminals and the user experience in frigid environments.

[0104] Those skilled in the art will understand that the modules described above can be implemented using general-purpose computing systems. They can be centralized on a single computing system or distributed across a network of multiple computing systems. Optionally, they can be implemented using computer-executable program code, allowing them to be stored in a storage system for execution by the computing system. Alternatively, they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, this application is not limited to any particular combination of hardware and software.

[0105] Note that the above description is merely a preferred embodiment and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of this application, and the scope of this application is determined by the scope of the appended claims.

[0106] The above disclosures are only a few specific implementation scenarios of this application. However, this application is not limited to these. Any variations that can be conceived by those skilled in the art should fall within the protection scope of this application.

Claims

1. A mobile terminal adaptive reminder method in extremely cold environments, characterized in that, include: The system collects interference signal characteristics and cold environment characteristics of the current frigid environment through a preset mobile terminal and linked devices, and senses the user's operation data on the mobile terminal in real time. Based on the characteristics of the severe cold environment, switch the basic strategy adapted to the severe cold environment, and adjust the communication parameters of the basic strategy in combination with the characteristics of the interference signal to obtain the communication strategy; Based on the operation data and preset cold-proof equipment, the user's operation restriction type caused by the cold-proof equipment is deduced, and a reminder strategy is configured by combining the communication strategy and the operation restriction type. Configure the communication module of the mobile terminal according to the communication strategy, and rebuild the communication link between the mobile terminal and the linkage device using the configured communication module; The reminder module of the mobile terminal is configured according to the reminder strategy, and adaptive reminders are performed through the configured reminder strategy. Linked devices are used to assist in determining whether the user has received the message reminder.

2. The mobile terminal adaptive reminder method according to claim 1, characterized in that, The interference signal characteristics include optical clutter signals generated by ice and snow reflection and communication signal attenuation fluctuations caused by low temperature; the severe cold environment characteristics include ambient temperature and wind force level; the operation data include the user's click point offset, pressing pressure, operation completion time, accidental touch rate, and swipe trajectory continuity.

3. The mobile terminal adaptive reminder method according to claim 1, characterized in that, The process of obtaining the communication strategy specifically includes: The current cold weather level is determined by real-time collection of cold weather environmental characteristics. Based on the cold weather level, the basic communication mode, basic power consumption configuration and basic reminder priority of the corresponding level are matched from the preset strategy library to form the basic strategy. Extract the clutter frequency range and attenuation rate from the characteristics of the interference signal, adjust the communication frequency band in the basic strategy based on the clutter frequency range, dynamically adjust the communication power and signal filtering bandwidth based on the attenuation rate, and configure a signal retransmission mechanism to form the communication strategy.

4. The mobile terminal adaptive reminder method according to claim 1, characterized in that, The operation restriction type includes restriction level and restriction type. The restriction type includes touch operation restriction, voice operation restriction, and action triggering restriction. Different cold-proof equipment has corresponding restriction types and standard datasets corresponding to operation under no environmental interference. The user's operation data in the current frigid environment is collected by the touch module and inertial measurement module of the mobile terminal. The deviation value between the standard dataset and the operation data is calculated, and the restriction level is classified based on the deviation value.

5. The mobile terminal adaptive reminder method according to claim 4, characterized in that, The process of obtaining the reminder strategy specifically includes: Based on the type of restriction, suitable reminder modalities are selected. If touch operation is restricted, tactile reminders and voice reminders are prioritized. If voice operation is restricted, tactile reminders and optical reminders are prioritized. If motion triggering is restricted, bone conduction reminders and low-frequency vibration reminders are prioritized. The intensity level and triggering sequence of the reminders are adjusted in combination with the restriction level to form a reminder strategy that includes a combination of reminder modalities, intensity levels, and triggering sequences.

6. The mobile terminal adaptive reminder method according to claim 1, characterized in that, The linkage device includes a feedback acquisition module located at the user's head and focused on the user's gaze area; Based on the reminder strategy, a feedback signal that can be collected by the feedback acquisition module is determined. The mobile terminal outputs the feedback signal while reminding the user according to the reminder strategy, so that the feedback signal can be collected by the feedback acquisition module when the user looks at the mobile terminal. The mobile terminal determines whether the user receives the reminder based on the collection result of the feedback signal by the linkage device.

7. The mobile terminal adaptive reminder method according to claim 1, characterized in that, The reminder strategy also includes: when it is determined that the user has not received a message reminder, the reminder intensity is increased according to a preset gradient, and the number of reminder modes is increased; if no user feedback is detected after a preset number of upgrades, an emergency reminder mode is triggered, in which the emergency reminder mode prioritizes the use of low-power and highly penetrating reminder modes.

8. The mobile terminal adaptive reminder method according to claim 1, characterized in that, After rebuilding the communication link, the process also includes: real-time acquisition of the signal attenuation rate and data packet loss rate of the communication link; when the signal attenuation rate exceeds the preset attenuation threshold or the data packet loss rate exceeds the preset loss threshold, the communication parameter adjustment process is re-triggered to dynamically optimize the communication strategy and maintain the stability of the communication link.

9. The mobile terminal adaptive reminder method according to claim 1, characterized in that, The reminder strategy includes reminder modes, which include vibration reminders, bone conduction reminders, light reminders, display screen reminders, and voice reminders.

10. An adaptive alert system for mobile terminals in frigid environments, characterized in that, include: The signal acquisition unit is used to collect the interference signal characteristics and cold environment characteristics of the current cold environment in collaboration with the preset mobile terminal and the linkage device, and to sense the user's operation data on the mobile terminal in real time. A communication strategy unit is used to switch a basic strategy adapted to the severe cold environment according to the characteristics of the severe cold environment, and to adjust the communication parameters of the basic strategy in combination with the characteristics of the interference signal to obtain a communication strategy. The reminder strategy unit is used to infer the type of operation restriction caused by the user's operation due to the obstruction of the cold protection equipment based on the operation data and the preset cold protection equipment, and to configure a reminder strategy in combination with the communication strategy and the type of operation restriction. A communication configuration unit is used to configure the communication module of the mobile terminal according to the communication strategy, and to rebuild the communication link between the mobile terminal and the linkage device using the configured communication module. The reminder configuration unit is used to configure the reminder module of the mobile terminal according to the reminder policy, perform adaptive reminders through the configured reminder policy, and use linkage devices to assist in determining whether the user has received the message reminder.

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