A high-safety protection closed type child intelligent monitoring watch system

Abstract

The present application relates to the technical field of children's intelligent wearable device safety monitoring, and discloses a high-safety protection closed type children's intelligent monitoring watch system, which comprises a cloud monitoring management server, at least one children's intelligent monitoring watch terminal and a guardian mobile terminal, and the three are in communication connection; the children's intelligent monitoring watch terminal comprises a multi-source positioning unit, a biological feature acquisition module and an audio acquisition module; the terminal shock-absorbing shell and partitioned main control architecture improve the drop resistance reliability; the positioning monitoring module realizes seamless Beidou positioning and active early warning; the communication control module and the closed type operating system isolate disturbing incoming calls and entertainment addiction; the fund supervision module sets up an independent children's account, cooperates with local double-biological identification payment to guarantee property safety; the silent linkage module can take silent evidence and implement hidden emergency; the cloud data is stored by AES encryption, supports multi-guardian collaborative control, and protects children's personal safety, property safety and privacy safety in all directions.

Description

Technical Field

[0001] This invention relates to the field of safety monitoring technology for children's smart wearable devices, specifically a high-security, enclosed smart monitoring watch system for children. Background Technology

[0002] Children's smart wearable devices have been widely used in the field of safety monitoring. Existing children's smartwatches typically integrate positioning, calling, and basic payment functions, meeting parents' basic needs for viewing children's travel routes and daily communication. However, with the increasing number of children's independent activities and the introduction of payment functions, the traditional technical architecture of existing watches is no longer adequate to meet the current complex monitoring needs in terms of safety protection. This is manifested in the following ways: In terms of physical protection, the watch's casing material and structural design have insufficient impact resistance, leading to frequent screen breakage and motherboard damage during children's daily running and bumping, thus limiting the device's lifespan; in terms of travel monitoring, existing positioning solutions have limited accuracy and lack proactive warning mechanisms for deviations from electronic fences and fixed routes, meaning guardians cannot be notified in time when children go beyond safe areas; in terms of communication security, most watches do not have call whitelists, allowing direct access to unknown calls, exposing children to the risk of being lured by criminals; and in terms of entertainment control, watches come pre-installed with games, browsers, and other third-party entertainment applications, which can easily lead to children's inattention, vision loss, and disrupted sleep patterns.

[0003] Meanwhile, existing technologies also have significant shortcomings in terms of fund management and secure payment: children's funds, such as red envelopes and New Year's money, go directly into the guardian's account, making the ownership of the funds unclear, and there is a lack of tiered spending limits, leading to frequent overspending; in terms of payment verification, most existing watches use password payments and lack biometric verification methods such as fingerprints and faces, so if the watch is lost, the account funds are at risk of being stolen; in addition, in emergency help scenarios, the existing SOS function only makes an emergency call and cannot silently record audio and video to preserve objective evidence in dangerous situations, and the triggering of a help request is often accompanied by sound, light, and vibration feedback, which can easily arouse the vigilance of suspicious people in the vicinity, and may instead exacerbate the safety risks to children. Therefore, we propose a highly secure and closed-loop smart watch system for children to solve the above-mentioned problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a highly secure, enclosed smart watch system for children, which solves the problems of poor drop resistance, delayed location alerts, susceptibility to being tricked by unknown calls, easy addiction to entertainment, unclear ownership of children's funds, easy theft of payments, lack of silent evidence collection in case of danger, and insufficient privacy protection in existing children's watches.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-security, enclosed smart watch system for children, comprising a cloud-based monitoring and management server, at least one smart watch terminal for children, and a mobile terminal for the guardian, all three being interconnected.

[0006] The child smart monitoring watch terminal includes: a multi-source positioning unit, a biometric feature acquisition module, an audio acquisition module, a physical help button, and a closed operating system; the multi-source positioning unit integrates Beidou satellite signals and auxiliary positioning sources to achieve seamless indoor and outdoor positioning; the closed operating system removes the application store and browser components at the system layer, and does not configure a game graphics decoding chip at the hardware layer, only retaining the monitoring function application;

[0007] The cloud-based monitoring and management server includes:

[0008] The access control module is used to establish a binding relationship between the watch terminal and the guardian's account, grant the guardian super management privileges, and grant the watch terminal limited usage privileges.

[0009] The communication control module is used to maintain a whitelist of numbers for calls and control the watch terminal to communicate only with numbers in the whitelist.

[0010] The location monitoring module is used to receive location data and generate an early warning message when the child's location deviates from the preset safety range;

[0011] The funds supervision module is used to link independent funds opened by a guardian using the child's identity information.

[0012] The account allows users to set payment permission levels and spending limits based on age; it also supports linking independent children's accounts from multiple strategic partner banks and enabling one-click cross-bank fund transfers.

[0013] The biometric payment verification module resides in the local security zone of the watch terminal and is used to complete biometric comparison to allow payment transactions.

[0014] The silent linkage module is used to control the watch terminal to perform three emergency actions—audio and video recording, repeatedly dialing emergency numbers, and continuously pushing real-time location—without sound, light, or vibration feedback when the trigger conditions are met.

[0015] This invention provides a highly secure and closed-loop intelligent monitoring method for children, comprising the following steps:

[0016] S1. The guardian's mobile terminal scans the QR code on the child's smart monitoring watch to initiate the binding process, enters the child's identity and contact information of multiple guardians, and the permission management module in the cloud monitoring management server establishes a binding file; the guardian is assigned super control permissions, the child's smart monitoring watch locks high-risk operations, and only opens basic and limited usage permissions.

[0017] S2. The multi-source positioning unit in the child smart monitoring watch terminal continuously collects indoor and outdoor integrated positioning coordinates and uploads them to the cloud monitoring management server. When the positioning monitoring module determines that the child exceeds the electronic fence or deviates from the preset route, it generates graphic and text warnings and pushes them to all guardians' mobile terminals. The full-cycle location trajectory is encrypted and stored to support historical tracing.

[0018] S3: The communication control module in the cloud monitoring management server stores the whitelist and synchronizes it to the child smart monitoring watch terminal in real time. Calls from non-whitelisted users are automatically hung up silently. The communication control module keeps a log of harassing calls in the cloud.

[0019] S4. The child smart monitoring watch terminal is equipped with a closed operating system, which blocks games, browsers, and short video entertainment programs through both hardware and software layers, and only retains the essential monitoring functions.

[0020] S5. The child's exclusive Class II account is bound through the fund supervision module in the cloud-based monitoring and management server. The payment permission level is automatically matched according to age. The guardian sets the consumption limit and only has the right to view the transaction history and adjust the limit.

[0021] S6. Offline consumption and red envelope transfer transactions must be verified by the biometric payment verification module to complete local fingerprint or facial recognition. Only after the verification is passed can the funds be transferred. The voice semantic recognition module recognizes the relatives' titles and automatically generates a QR code for receiving payment. After the payment is received, the identity of the relatives and the amount are announced in voice.

[0022] S7. The AI ​​voice evidence collection sub-module under the silent linkage module recognizes risky voice triggers, or the hidden SOS sub-module detects a long press of a physical button trigger. In the absence of light, prompts, and vibration, the child smart monitoring watch terminal simultaneously performs three emergency operations: audio and video recording, repeatedly dialing the guardian's phone, and continuously pushing Beidou positioning information.

[0023] Beneficial effects

[0024] This invention provides a highly secure, enclosed smart watch system for children. Compared with existing technologies, it has the following advantages:

[0025] This highly secure, enclosed children's smart watch system features a shock-absorbing shell and a partitioned, isolated main control architecture. Multi-source positioning units and silent linkage modules operate in separate domains, providing a degree of drop protection. A single module failure does not affect positioning or core emergency functions. The cloud-based monitoring server's positioning module achieves seamless indoor and outdoor positioning using BeiDou technology. It proactively pushes risk warnings based on electronic fences and route deviation mechanisms, and its full-cycle trajectory is encrypted and stored for easy traceability. The communication control module synchronously updates the call whitelist and silently blocks unknown calls. Combined with a closed operating system with dual hardware and software constraints, it completely isolates users from the risks of deceptive communication and electronic entertainment addiction.

[0026] A comprehensive child asset security system is built through modules for fund supervision and biometric payment verification. This system supports multiple strategic partnerships by establishing a second-class child fund account that is physically separated from the guardian's account.

[0027] The system allows for separate bank accounts and one-click interbank fund transfers. Payment permissions are tiered by age, and guardians can only view transaction history and adjust spending limits, but have no right to transfer or withdraw children's own funds. A biometric data collection module collects fingerprints and facial information and stores them locally with encryption. Transactions require mandatory double biometric verification, and consecutive failed verifications automatically lock the payment channel, effectively preventing the risk of fund theft after the watch is lost. A voice recognition module identifies kinship terms to generate a QR code for receiving payments, and red envelopes are automatically announced via voice, balancing fund security with a comfortable family interaction experience.

[0028] The silent linkage module enables covert protection in high-risk scenarios while improving privacy and collaborative monitoring mechanisms. The silent linkage module includes an AI voice evidence collection sub-module and a covert SOS sub-module. When a risky voice is detected or the physical help button is pressed and held, the terminal can simultaneously record audio and video, repeatedly dial emergency numbers, and push real-time location data without any light, sound, or vibration, thus secretly preserving evidence of deception and abduction. All monitoring data in the cloud is stored using AES encryption, and only guardian accounts authenticated by the access management module can decrypt and retrieve it. It also supports multiple guardians collaboratively binding devices, and warning and evidence information are distributed simultaneously, comprehensively protecting the privacy and safety of children's personal information, property, and personal data. Attached Figure Description

[0029] Figure 1 This is a block diagram of a high-security, enclosed smart watch system for children according to the present invention;

[0030] Figure 2 This is a diagram of a highly secure, closed-loop intelligent monitoring method for children according to the present invention. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figure 1-2 As shown:

[0033] A high-security, enclosed smart watch system for children includes a cloud-based monitoring and management server, at least one smart watch terminal for children, and a mobile terminal for the guardian. The cloud-based monitoring and management server, the smart watch terminal for children, and the mobile terminal for the guardian are connected bidirectionally via a 4G / 5G mobile communication link.

[0034] The child smart monitoring watch terminal integrates a multi-source positioning unit, a biometric feature acquisition module, an audio acquisition module, a voice semantic recognition module, a physical help button, a closed operating system, a shock-resistant structure, a partitioned isolated main control chip, and a local secure storage chip;

[0035] The multi-source positioning unit integrates BeiDou satellite positioning signals, WiFi-assisted positioning, and base station-assisted positioning to achieve seamless switching of positioning signals in indoor and outdoor scenarios, and continuously uploads latitude and longitude coordinates to the cloud monitoring and management server; the biometric acquisition module includes a bottom capacitive fingerprint sensor and a front-facing high-definition face recognition camera to collect children's fingerprints and facial biometric templates; the audio acquisition module has a built-in high-sensitivity microphone to continuously collect ambient audio streams, which are then analyzed by the AI ​​voice evidence collection submodule under the silent linkage module; the voice semantic recognition module runs locally on the children's smart monitoring watch terminal, without relying on the computing power of the cloud monitoring and management server, extracting kinship terms and keywords for payment transactions from the voice, matching them with the identities of whitelisted relatives to generate a payment QR code; the physical help button is located in a hidden position on the side of the watch and supports long press for ≥2 seconds to recognize and trigger the signal.

[0036] The closed operating system removes all components of the app store and web browser at the system level, eliminates the dedicated graphics decoding chip for games at the hardware level, and the hardware computing power does not support the decoding and running of game programs. The system desktop only loads five types of monitoring-needed applications: calls, location, payment, SOS, and voice payment.

[0037] The device features a shock-absorbing layer built into the outer shell and a scratch-resistant and wear-resistant protective layer on the screen surface. The device has passed a 1.5-meter six-sided drop impact test. The motherboard adopts a partitioned isolation main control architecture, with positioning, communication, payment, and silent linkage modules running in independent hardware security domains. A failure in a single security domain will not terminate the core functions of positioning reporting and SOS emergency assistance. The local secure storage chip has an independent encrypted security zone. Fingerprint and facial biometric templates are stored locally and are not uploaded to the cloud monitoring and management server. After three consecutive failed biometric comparisons, the payment channel is automatically locked and an alert is pushed to the guardian's mobile terminal.

[0038] The cloud-based monitoring and management server has built-in modules for permission management, communication control, location monitoring, fund supervision, biometric payment verification, and silent linkage. Each module has independent computing power scheduling, and the data is uniformly encrypted and stored.

[0039] The permission management module is used to establish a permanent binding file for the watch hardware device ID, child identity information, and multiple guardian accounts, and to allocate system operation permissions in a hierarchical manner: guardian accounts are granted super administrator privileges, which can perform all operations such as location viewing, geofence drawing, whitelist addition and deletion, consumption limit adjustment, cloud audio and video evidence file retrieval, and remote device control; the child smart monitoring watch terminal is only open to basic call, location viewing, personal biometric payment, and voice payment functions. High-risk operations such as system settings, fund account unbinding, and permission modification are permanently locked, and children have no operation permissions; the permission management module supports multiple guardian accounts to be bound to the same child smart monitoring watch terminal, and all warning, transaction, and evidence data are synchronously pushed to all monitoring terminals;

[0040] The communication control module is used to persistently store the authorized call numbers of relatives, homeroom teachers, etc., entered by the guardian, forming a unique communication whitelist. The number addition, deletion and modification instructions issued by the guardian's mobile terminal are synchronized to the child's smart monitoring watch terminal in real time. When the child's smart monitoring watch terminal receives a call request from a non-whitelisted number, it performs a silent hang-up operation, without popping up the caller interface, ringing, or vibrating. The communication control module automatically records the unknown caller number and the call timestamp, generates a harassment log and pushes it to the guardian's mobile terminal.

[0041] The location monitoring module receives real-time location data from the child's smart watch terminal. Guardians can customize and draw electronic fence boundaries for homes, schools, and training institutions on their mobile terminals, input fixed routes for going to and from school, and set deviation distance thresholds. When a child's coordinates exceed the fence boundary or their trajectory deviates from the preset route by more than the threshold, the location monitoring module determines it as a safety risk and automatically pushes a graphic warning message containing real-time coordinates, deviation distance, and location screenshots to all guardians' mobile terminals. All location trajectory data throughout the child's entire usage period is stored in a cloud-based monitoring management server using AES encryption, allowing guardians to retrieve and replay complete historical travel records at any time. When the child's smart watch terminal goes offline or moves abnormally rapidly, the location monitoring module additionally pushes an offline alarm.

[0042] The fund supervision module is used to support guardians in opening Class II bank accounts on behalf of children by presenting the child's ID.

[0043] A dedicated sub-account for children, either through an account or payment institution, is physically separated from the guardian's main account. New Year's money and holiday red envelopes from relatives are directly deposited into the child's dedicated account. The fund supervision module has two levels of payment permissions. All bank accounts are opened with banks that have established strategic partnerships with the system operator. The fund supervision module provides a one-click cross-bank transfer function. Guardians can select funds in a bank account on their mobile device, and after biometric verification, transfer the funds to another bank account under the same child's name with one click. The entire fund transfer process is encrypted, and operation records are permanently stored in the cloud log. Level 1 is suitable for children aged 6 and under, where all offline and online payment functions are permanently disabled, with no consumption channels. Level 2 is suitable for children aged 6 and above, where guardians can customize daily spending limits and single payment limits. The guardian's account only has the authority to query spending records and adjust payment limits; they have no authority to transfer, withdraw, or cash out funds from the child's account, clearly distinguishing between guardianship and the child's ownership of funds.

[0044] The biometric payment verification module resides on the local security chip of the child's smart watch terminal. When a transaction is initiated, the local encrypted biometric template is retrieved and compared with the real-time collected fingerprint / facial features. Funds are transferred only if the matching degree meets the standard. The biometric template never leaves the child's smart watch terminal, eliminating the risk of leakage of biometric information from the cloud monitoring and management server.

[0045] The silent linkage module includes an AI voice evidence collection sub-module and a covert SOS sub-module. The dual triggering logic shares a set of silent and light audio-visual recording execution unit. During the recording process, the indicator lights, speakers and vibration motors of the child's smart monitoring watch terminal are all powered off and turned off, with no audio-visual or vibration feedback, to avoid arousing the vigilance of suspicious persons in the vicinity.

[0046] The AI-powered voice evidence collection submodule is deployed on the terminal side of the child smart watch. It triggers recording based on the terminal acoustic feature extraction and risk word database matching strategy. Specifically, the triggering strategy is to extract the ambient audio sound pressure energy and Mel frequency band acoustic features, and perform similarity matching with the local pre-set risk semantic model and the voiceprint database of guardians and acquaintances. When the audio identifies threatening or deceptive risk words, and the voiceprint of a non-guardian acquaintance or the duration of the risk reaches a preset threshold, it automatically starts silent video recording. The encrypted audio and video files are uploaded to the cloud monitoring management server in real time to retain the evidence materials.

[0047] The concealed SOS submodule responds to the trigger signal of the side physical help button being pressed for ≥2 seconds and simultaneously performs three emergency actions: continuously and silently recording surrounding audio and video and uploading it to the cloud monitoring and management server, automatically dialing all emergency contact numbers of the guardians in a loop, and continuously pushing Beidou real-time accurate positioning to the guardian's mobile terminal.

[0048] The guardian's mobile terminal is a mobile APP program, which serves as the human-computer interaction and management entry point, enabling full-function operations such as device binding, permission configuration, electronic fence drawing, whitelist management, consumption limit setting, historical trajectory playback, cloud-based evidence audio and video download, and receiving various security warning messages.

[0049] In this implementation plan: Parents download the accompanying monitoring APP, which is the guardian's mobile terminal, scan the QR code on the child's smart monitoring watch to initiate the binding, enter the child's name, ID number, and age, and add the mobile phone numbers of multiple guardians, including parents and grandparents; the permission management module in the cloud monitoring management server generates an encrypted binding file, and all guardian accounts are assigned super control permissions; the child's smart monitoring watch synchronizes the permission policy, and all system settings, account unbinding, and application installation channels are locked, so the child can only operate basic functions such as making calls, receiving payments, making payments, and viewing their own location.

[0050] Guardians can use the location monitoring module on their mobile devices to create electronic fences around the home and school, setting routes for going to and from school, with a 50-meter deviation threshold. Once powered on, the child's smart watch continuously collects satellite positioning data via multi-source positioning units, and indoor positioning is assisted by WiFi base stations, uploading coordinates to the cloud-based monitoring management server every second. If a child leaves the community fence or deviates more than 50 meters from the preset pedestrian route on their way home from school, the location monitoring module immediately sends a text and image alert to all guardians' mobile devices, including parents and grandparents, along with a real-time location map and the distance of deviation. Daily and monthly tracks are encrypted and stored on the cloud-based monitoring management server, allowing parents to review a week's or a semester's worth of travel routes at any time. If the child's smart watch fails to report location information for an extended period, the location monitoring module sends an offline risk alert.

[0051] Guardians can enter a whitelist of 8 authorized numbers, such as parents, grandparents, homeroom teacher, and after-school care teacher, through the communication control module on their mobile terminal. The communication control module synchronizes the number list to the communication module of the child's smart monitoring watch in real time. When unfamiliar numbers that are selling or scamming call the child's smart monitoring watch, the watch will hang up without turning on the screen or ringing. The communication control module records the caller ID and time in the cloud and sends a log of harassing calls to the parents that evening. Parents can manually and permanently blacklist frequently harassing numbers.

[0052] The child smart monitoring watch terminal is equipped with a deeply customized closed operating system. The desktop only displays five icons: phone, location, payment, payment, and SOS. The closed operating system removes the browser kernel and app store programs at the bottom layer. The motherboard does not have a game graphics decoding chip soldered on, so it cannot parse any mini-games or short video installation packages. Children cannot install any entertainment software through Bluetooth, data cable, or network channels, thus eliminating the risk of addiction from both the software and hardware levels.

[0053] Guardians bring the child's household registration book and ID card to the bank to open a Class II debit card for the child. The guardian's mobile terminal is then bound to the fund supervision module in the cloud-based monitoring management server. If the child is 5 years old, the fund supervision module automatically locks all payment functions, preventing them from scanning QR codes for purchases or sending / receiving red envelopes. If the child is 9 years old, the guardian can set a daily maximum spending limit of 100 yuan and a single payment limit of 30 yuan through the fund supervision module. Red envelopes sent by elders during the Spring Festival are directly deposited into the child's Class II bank card. Parents can only view each receipt and spending transaction on the guardian's mobile terminal and have no authority to transfer or withdraw funds from the child's account. The ownership of the red envelopes belongs to the child. The banks are all financial institutions that have reached strategic cooperation with the system operator, supporting the opening of accounts at multiple partner banks and enabling one-click cross-bank fund transfers. Parents can initiate a one-click transfer operation on the guardian's mobile terminal to transfer red envelopes from account A to account B. The transfer process requires fingerprint or facial biometric verification by the guardian or the child before it can be executed. All cross-bank transfer records are encrypted and stored in the cloud-based monitoring management server.

[0054] It is important to note that all children's independent accounts are opened with banks that have established formal strategic partnerships with the system operator. Partner institutions must pass security qualification reviews and connect to the cloud server through standardized encrypted interfaces. Non-partner banks cannot access this system, thereby building a closed and trustworthy children's financial service ecosystem and ensuring the security of account data and transactions.

[0055] When children make purchases at offline stationery stores and supermarkets, a verification window automatically pops up on the child's smart monitoring watch. They can choose to press the bottom sensor in the biometric feature collection module with their fingerprint or scan their face with the front camera. The biometric payment verification module in the local security chip compares the biometric template. If the match is successful, the payment is completed. If the fingerprint and face comparisons do not match for three consecutive times, the biometric payment verification module will directly lock the payment function, and the cloud monitoring management server will push a fraudulent transaction warning to the guardian's mobile terminal.

[0056] Receiving red envelopes from relatives: When a child says commands such as "Uncle, send me a red envelope" or "Grandma, transfer a red envelope," the voice and semantic recognition module in the child's smart monitoring watch recognizes the relative titles "Grandpa" and "Grandma" and the keywords for the red envelope transaction. After matching the corresponding relatives in the whitelist stored in the communication control module, a QR code for receiving payment is generated on the screen. After the red envelope funds are credited to the account, the child's smart monitoring watch speaker announces, "Grandpa has transferred a 200 yuan red envelope to your exclusive account," enhancing the sense of ritual in family interaction.

[0057] A child was playing alone downstairs in the residential area when a stranger approached him and continued to use deceptive language. The audio acquisition module of the child's smart monitoring watch picked up the audio stream. The AI ​​voice evidence collection submodule under the silent linkage module extracted risky words and identified voiceprints that were not those of the guardian. After the deceptive voice continued for 10 seconds, the screen of the child's smart monitoring watch did not light up, there was no prompt sound, and there was no vibration. The front camera recorded video silently and recorded audio simultaneously. The encrypted audio and video were uploaded to the cloud monitoring management server in real time to preserve evidence. The guardian's mobile terminal simultaneously received a warning that there was a risk of suspicious voices in the vicinity.

[0058] If a child is forcibly taken away by a stranger, pressing and holding the physical help button on the side for 2 seconds triggers the emergency mode. There is no audio or visual feedback throughout the process, so the suspect cannot detect the watch's distress signal. The silent linkage module simultaneously controls the child's smart monitoring watch terminal to continuously record on-site audio and video and upload it to the cloud monitoring management server. It also dials all emergency numbers for parents, grandparents, and homeroom teacher in sequence, and pushes Beidou high-precision positioning to all guardians' mobile terminals every 3 seconds. Parents can obtain on-site evidence and real-time location information immediately to carry out rescue operations.

[0059] It's important to understand that: the entire casing is made of high-strength PC engineering plastic, with a silicone cushioning and shock-absorbing layer between the casing and the internal mechanism. The screen surface is coated with high-alumina silicon scratch-resistant glass, providing a certain degree of drop protection. The motherboard adopts a partitioned isolated main control architecture, with independent power supply and safety domains for the multi-source positioning unit, 4G communication module, biometric payment verification module, and audio acquisition module. Even if the audio acquisition module fails and loses power, the dialing function of the hidden SOS sub-module in the multi-source positioning unit and silent linkage module will still operate normally. The hardware omits a dedicated GPU graphics decoding chip for gaming, and the underlying hardware does not support game rendering. A recessed physical help button is located on the side, reducing the risk of accidental activation. A 2-second long press will trigger a valid signal from the hidden SOS sub-module under the silent linkage module. The bottom integrates a capacitive fingerprint sensor in the biometric acquisition module, and a small front-facing face recognition camera is located above the dial, paired with a noise-canceling microphone, balancing a simple appearance with clear audio recording for evidence collection. A built-in safe lithium battery supports all-weather operation of the multi-source positioning unit and all-weather audio monitoring of the audio acquisition module.

[0060] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A highly secure, enclosed smart watch system for children, characterized in that: It includes a cloud-based monitoring and management server, at least one smart watch terminal for children, and a mobile terminal for the guardian, all of which are connected in communication. The child smart monitoring watch terminal includes: a multi-source positioning unit, a biometric feature acquisition module, an audio acquisition module, a physical help button, and a closed operating system; the multi-source positioning unit integrates Beidou satellite signals and auxiliary positioning sources to achieve seamless indoor and outdoor positioning; the closed operating system removes the application store and browser components at the system layer, and does not configure a game graphics decoding chip at the hardware layer, only retaining the monitoring function application; The cloud-based monitoring and management server includes: The access control module is used to establish a binding relationship between the watch terminal and the guardian's account, grant the guardian super management privileges, and grant the watch terminal limited usage privileges. The communication control module is used to maintain a whitelist of numbers for calls and control the watch terminal to communicate only with numbers in the whitelist. The location monitoring module is used to receive location data and generate an early warning message when the child's location deviates from the preset safety range; The funds supervision module is used to link independent funds opened by a guardian using the child's identity information. The account allows users to set payment permission levels and spending limits based on age; it also supports linking independent children's accounts from multiple strategic partner banks and enabling one-click cross-bank fund transfers. The silent linkage module is used to control the watch terminal to perform three emergency actions—audio and video recording, repeatedly dialing emergency numbers, and continuously pushing real-time location—without sound, light, or vibration feedback when the trigger conditions are met. It also includes a biometric payment verification module, which resides in the local security zone of the watch terminal and is used to complete biometric comparison to allow payment transactions.

2. The high-security, enclosed child smart monitoring watch system according to claim 1, characterized in that: The silent linkage module includes an AI voice evidence collection submodule and a covert SOS submodule. The AI ​​voice evidence collection submodule triggers recording on the watch terminal side based on the strategy of extracting acoustic features from the terminal side and matching risk words. The concealed SOS submodule responds to the trigger signal of a physical help button being pressed continuously for ≥2 seconds; During the recording process, the indicator lights, speaker, and vibration motor on the watch were all kept powered off.

3. The high-security, enclosed child smart monitoring watch system according to claim 2, characterized in that: The triggering strategy of the AI ​​voice evidence collection submodule includes: extracting the sound pressure energy and Mel frequency band features of the ambient audio, matching them with the locally stored risk semantic model, and calculating the similarity between the speaker's voiceprint and the pre-stored voiceprints of guardians and frequently used contacts. When the matching result meets the preset risk threshold and the duration reaches the set condition, silent recording is triggered.

4. The high-security, enclosed child smart monitoring watch system according to claim 1, characterized in that: The independent fund account linked to the fund supervision module is a Class II bank account or a child sub-account of a payment institution, and the funds in the independent fund account are physically separated from the guardian's main account; the payment permission levels include: The first level applies to children aged 6 and under, and permanently disables payment functionality. The second level applies to children aged 6 and above, where the guardian sets the daily spending limit and the single spending limit; the guardian's account only has the authority to view transaction records and adjust the limit, but not the authority to transfer funds.

5. The high-security, enclosed child smart monitoring watch system according to claim 1, characterized in that: The biometric acquisition module includes a fingerprint sensor and a front-facing camera; the biometric template is encrypted and stored in the security chip of the watch terminal and does not leave the terminal; when the biometric comparison fails three times in a row, the biometric payment verification module locks the payment function and pushes a risk warning of fraudulent use to the guardian's mobile terminal.

6. The high-security, enclosed child smart monitoring watch system according to claim 1, characterized in that: The child smart monitoring watch terminal also includes a voice semantic recognition module, which performs keyword semantic matching locally: it identifies kinship terms in the child's voice and preset transaction intent terms, and generates a payment QR code after matching the identity of a whitelisted relative; after the red envelope is received, it controls the speaker to broadcast a voice prompt containing the relative's identity and the amount.

7. The high-security, enclosed child smart monitoring watch system according to claim 2, characterized in that: The preset safety range of the positioning and monitoring module includes the electronic fence boundary and fixed travel route; when the location data indicates that the child has exceeded the electronic fence boundary or deviated from the fixed travel route by more than a preset distance threshold, it is determined to be a deviation from the safety range, and a graphic warning message containing the current coordinates and deviation distance is pushed to the guardian's mobile terminal. The location trajectory is encrypted and stored in the cloud, supporting historical tracing.

8. The high-security, enclosed child smart monitoring watch system according to claim 1, characterized in that: The child smart monitoring watch terminal has a built-in cushioning and shock-absorbing layer in its shell, and the screen is covered with a scratch-resistant and wear-resistant layer. The whole device has passed a 1.5-meter multi-face drop test. The motherboard adopts a partitioned isolation main control architecture, with positioning, communication, payment and silent linkage modules running in an independent security domain. A single domain failure will not terminate the positioning reporting and emergency help functions.

9. The high-security, enclosed child smart monitoring watch system according to claim 1, characterized in that: The communication control module allows guardians to add or delete whitelisted numbers online via mobile terminals, and modification commands are synchronized to the watch terminal in real time. For incoming calls from non-whitelisted numbers, the watch terminal silently hangs up and writes the caller ID and timestamp to the cloud log.

10. A highly secure, closed-loop intelligent monitoring method for children, applied to the system described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. Establish a binding relationship between the watch terminal and the guardian's account, and assign hierarchical permissions; S2. The system integrates BeiDou and auxiliary positioning sources to obtain the location and sends out warnings when the location deviates from the safe range. S3. Synchronize and execute the call whitelist policy, and block non-whitelisted communications; S4. A closed operating system with no entertainment applications loaded; S5. Link an independent funds account and configure payment permissions and spending limits according to age; S6. Complete biometric verification locally on the terminal; funds can only be transferred after verification. S7 responds to physical button triggers or terminal-side risk semantic triggers, performing audio and video recording, loop dialing, and continuous location push without sound, light, or vibration.

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