Household emergency rescue system and method based on multi-node linkage

Abstract

The invention provides a family emergency rescue system and method based on multi-node linkage, and the system comprises a distributed triggering module which is used for obtaining alarm signals of alarm sub-machines installed at a plurality of family deployment positions; the terminal processing module is used for converting protocol messages of alarm signals sent by different protocols into a unified data format based on a protocol conversion engine and reporting the protocol messages to the cloud platform; the cloud collaboration module is used for notifying rescue workers and activating a target door sticker according to an analysis result of the protocol message; and the home-entry guide access module is used for guiding rescue workers to carry out home-entry rescue through the target door sticker. According to the family emergency rescue system and method based on multi-node linkage, rescue workers can quickly enter a room for rescue, the rescue efficiency is greatly improved, the rescue time is shortened, and the emergency situation of family users is better served.

Description

Technical Field

[0001] This invention relates to the field of smart home security technology, and in particular to a home emergency rescue system and method based on multi-node linkage. Background Technology

[0002] With the aging population and the increasing number of elderly people living alone, the demand for home emergency alarms and rescue systems is growing. Home emergency alarms are gradually becoming more common in the market. These typically consist of one or more sub-units communicating with the alarm terminal, sending alarm messages in emergencies but not guiding subsequent rescue efforts. Therefore, most products on the market primarily serve as initial alarms, offering little assistance in subsequent rescue operations.

[0003] Specifically, current home emergency alarm devices have the following shortcomings:

[0004] 1. Limited functionality: The extension unit only supports triggering alarms and cannot transmit medical information.

[0005] 2. Disconnection in rescue efforts: The lack of a mechanism to guide rescue personnel to enter the home after an alarm is raised leads to delays in breaking down doors.

[0006] 3. Information fragmentation: Medical records, door lock permissions, and alarm systems operate independently, making it impossible for rescue personnel to obtain critical information in real time.

[0007] In view of this, there is an urgent need for a home emergency rescue system and method based on multi-node linkage, in order to at least address the above-mentioned shortcomings. Summary of the Invention

[0008] One objective of this invention is to provide a home emergency rescue system and method based on multi-node linkage. It employs a multi-node, multi-master layout, combining the Internet of Things (IoT), the Internet, a cloud platform, and door unlock stickers to form an emergency rescue network system. In the event of danger, users can trigger alarms from any location within the home. Upon receiving the alarm information, the platform immediately notifies rescue personnel of the alarm location and the user's pre-set medical emergency information. Upon arrival, rescue personnel can quickly enter the home to provide assistance, guided by the door unlock stickers. This invention significantly improves rescue efficiency, reduces rescue time, and better serves emergency situations for home users.

[0009] The home emergency rescue system based on multi-node linkage provided in this embodiment of the invention includes:

[0010] The distributed triggering module is used to acquire alarm signals from alarm sub-units installed in multiple home deployment locations;

[0011] The terminal processing module is used to convert alarm signal protocol messages from different protocols into a unified data format and report them to the cloud platform based on the protocol conversion engine.

[0012] The cloud-based collaboration module is used to notify rescue personnel and activate the target door sticker based on the parsing results of the protocol messages;

[0013] The in-home guidance module is used to guide rescue personnel to conduct in-home rescues by following the target door sticker.

[0014] The home emergency rescue system based on multi-node linkage provided in this embodiment of the invention also performs the following operations:

[0015] When a user uses a home emergency rescue system based on multi-node linkage for the first time, the system obtains the address binding relationship, alarm status display information, and non-alarm status display information set by the user in the front-end application.

[0016] Preferably, the sensor types for alarm signals include: button triggers, pull cord switches, radar detection, smart mattress sensors, smoke sensors, gas leak sensors, water immersion sensors, and cameras.

[0017] Preferably, the terminal processing module adopts a heterogeneous communication protocol networking scheme, and achieves multi-mode compatibility through a protocol abstraction layer. The communication protocols supported by the terminal processing module include: BLE, Zigbee, LoRa, 433MHz, WiFi and cellular networks.

[0018] The heterogeneous communication protocol networking scheme includes:

[0019] The alarm signal is reported to the cloud platform through the home processing terminal;

[0020] and / or,

[0021] The alarm signal is reported to the cloud platform via cellular network or home router.

[0022] Preferably, the in-home guidance module guides rescue personnel to conduct in-home rescues via the target door sticker, including:

[0023] After rescue personnel read the door sticker, they perform cloud-based access authentication.

[0024] If cloud-based authorization is successful, blockchain evidence will be stored and door opening information will be sent out.

[0025] If cloud-based authorization fails, a non-alarm status message will be displayed.

[0026] Cloud-based access control includes: alarm status verification, mobile phone number verification, location verification, and biometric verification.

[0027] The home emergency rescue system based on multi-node linkage provided in this embodiment of the invention further includes:

[0028] The system security module is used for data transmission based on the SSL / TLS secure transmission mechanism.

[0029] Preferably, the target door sticker includes active door stickers and passive door stickers.

[0030] Preferred door sticker designs for passive door stickers include:

[0031] Door sticker designs without privacy screens, or door sticker designs with privacy screens, or door sticker designs combining scratch-off layers and thermochromic inks, or door sticker designs with masking privacy screens, or door sticker designs that combine QR code scanning and NFC.

[0032] Preferred designs for active door stickers include:

[0033] Door sticker design triggered by physical buttons or door sticker design triggered by capacitive touch.

[0034] This invention provides a home emergency rescue system based on multi-node linkage, and also performs the following operations:

[0035] Determine if there are any people passing by the door during the activation period of the target door sticker;

[0036] If there are people passing by, locate the user's mobile communication terminal;

[0037] If the location of the mobile communication terminal matches the user's current location, a reminder message will be sent through the mobile communication terminal.

[0038] If the location of the mobile communication terminal is inconsistent with the user's current location, determine whether there is a movable network device;

[0039] If a mobile network-connected device exists, control the corresponding network-connected device to go to the user's current location and deliver a reminder message to the user;

[0040] If there are no mobile network devices, extract the communication characteristics of the terminal processing device; the communication characteristics include: the first distance between the terminal processing device and the user's current location, the second distance between the terminal processing device and the nearest access AP, and the wall penetration information of the connection line between the terminal processing device and the nearest access AP.

[0041] The communication features are quantized according to the preset quantization relationship of the feature type corresponding to the communication features, and the transmission degree of the network device corresponding to the terminal processing device is obtained.

[0042] The reminder information is transmitted through the networked device with the highest reliability.

[0043] Based on user feedback on the alert information, determine whether it is necessary to immediately notify passing personnel to provide in-home assistance;

[0044] If it is necessary to immediately notify passing personnel for door-to-door rescue, then the appropriate notification shall be made;

[0045] If it is not necessary to immediately notify passing personnel for home rescue, then continue to wait for rescue personnel to arrive.

[0046] The home emergency rescue method based on multi-node linkage provided in this embodiment of the invention includes:

[0047] Step 1: Obtain alarm signals from alarm sub-units installed in multiple home deployment locations;

[0048] Step 2: Based on the protocol conversion engine, convert the protocol messages of alarm signals issued by different protocols into a unified data format and report them to the cloud platform;

[0049] Step 3: Based on the parsing results of the protocol message, notify the rescue personnel and activate the target door sticker;

[0050] Step 4: Guide rescue personnel to enter the house for rescue by following the target door sticker.

[0051] The beneficial effects of this invention are as follows:

[0052] This invention employs an indoor multi-sub-unit, multi-host layout, combining an emergency rescue network system comprised of the Internet of Things (IoT), the internet, a cloud platform, and door unlock stickers. In the event of danger, users can trigger alarms from anywhere in their homes. Upon receiving the alarm information, the platform immediately notifies rescue personnel of the alarm location and the user's pre-set medical emergency information. Upon arrival, rescue personnel can quickly enter the home to provide assistance, guided by the door unlock stickers. This invention significantly improves rescue efficiency, reduces rescue time, and better serves emergency situations for home users.

[0053] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in this application.

[0054] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0055] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0056] Figure 1 This is a schematic diagram of a home emergency rescue system based on multi-node linkage in an embodiment of the present invention;

[0057] Figure 2This is a diagram illustrating the closed-loop architecture of a home emergency rescue system based on multi-node linkage in an embodiment of the present invention.

[0058] Figure 3 This is a schematic diagram of a home emergency rescue method based on multi-node linkage in an embodiment of the present invention. Detailed Implementation

[0059] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0060] This invention provides a home emergency rescue system based on multi-node linkage, such as... Figure 1 As shown, it includes:

[0061] The distributed triggering module 1 is used to acquire alarm signals from alarm sub-units installed in multiple home deployment locations; the sensor types of alarm signals include: button trigger, pull cord switch, radar detection, smart mattress sensor, smoke sensor, gas leak sensor, water immersion sensor, and camera;

[0062] Terminal processing module 2 is used to convert alarm signal protocol messages from different protocols into a unified data format and report them to the cloud platform based on the protocol conversion engine. The terminal processing module adopts a heterogeneous communication protocol networking scheme and achieves multi-mode compatibility through the protocol abstraction layer. The communication protocols supported by the terminal processing module include: BLE, Zigbee, LoRa, 433MHz, WiFi and cellular network. The heterogeneous communication protocol networking scheme includes: reporting alarm signals to the cloud platform through the home processing terminal, and / or reporting alarm signals to the cloud platform through the cellular network or home router.

[0063] Among them, the alarm sub-unit can communicate with the home processing center via Bluetooth, WiFi, etc., or it can bypass the home processing terminal and directly connect to the cloud platform via cellular network.

[0064] The cloud-based collaboration module 3 is used to notify rescue personnel and activate the target door sticker based on the parsing results of the protocol message. The target door sticker includes active door stickers and passive door stickers. The door sticker design of passive door stickers includes: door sticker design without privacy protection, or door sticker design with privacy film, or door sticker design with a combination of scratch layer and thermochromic ink, or door sticker design with mask privacy protection, or door sticker design with a combination of barcode scanning and NFC. The door sticker design of active door stickers includes: door sticker design triggered by physical button or door sticker design triggered by capacitive touch.

[0065] The in-home guidance module 4 is used to guide rescue personnel to conduct in-home rescues by following the target door sticker;

[0066] Among them, the in-home guidance module 4 guides rescue personnel to conduct in-home rescues by following the target door sticker, including:

[0067] After rescue personnel read the door sticker, they will perform cloud-based access authentication. If the cloud-based access authentication is successful, the information will be stored on the blockchain and the door opening information will be sent out. If the cloud-based access authentication fails, a non-alarm status display will be shown. Cloud-based access authentication includes: alarm status verification, mobile phone number verification, location verification, and biometric verification.

[0068] Among them, blockchain evidence storage uses blockchain technology to store electronic data such as "timestamp + door sticker ID + alarm information + rescue personnel identity information" on the blockchain, and the door sticker is bound to the address and user information;

[0069] The home emergency rescue system based on multi-node linkage also performs the following operations:

[0070] When a user uses a home emergency rescue system based on multi-node linkage for the first time, the system obtains the address binding relationship, alarm status display information and non-alarm status display information set by the user in the front-end application.

[0071] The address binding relationship includes the association between the alarm sub-unit, alarm terminal, door sticker and user address; the alarm status display information includes the one-time password / temporary password / key location (e.g., "key is in the third compartment of the meter box") / emergency contact information, etc.; the non-alarm status display information is set by the user, such as "system not activated, access denied", and the scanner's IP is recorded when the non-alarm status display information is triggered.

[0072] A home emergency rescue system based on multi-node linkage also includes:

[0073] The system security module is used for data transmission based on the SSL / TLS secure transmission mechanism.

[0074] The working principle and beneficial effects of the above technical solution are as follows:

[0075] When a user first uses the multi-node linked home emergency rescue system, they first bind the alarm sub-unit, alarm terminal, and door sticker to the same address via a front-end application (APP or mini-program). This binding relationship is stored on the cloud platform. When binding the door sticker, the user needs to fill in different information displayed for non-alarm and alarm states. The cloud platform binds the door sticker ID to the alarm status in real time: if the alarm device does not trigger an alarm, the door sticker at the same address is in a non-alarm state; if the alarm device triggers an alarm, the door sticker at the same address is activated and enters an alarm state. Figure 2 This is a diagram of the closed-loop architecture of a home emergency rescue system based on multi-node linkage.

[0076] The alarm triggering process is as follows: the alarm sub-unit triggers the alarm, and alarm terminals at the same address upload the alarm information to the cloud platform. The platform then locates the door sticker at the same address based on the address set when binding the device and activates the sticker. Rescue personnel can then obtain access to the door after verifying their identity via mobile phone (phone number / facial recognition).

[0077] The alarm sub-units are installed in multiple locations where danger may occur and support various triggering methods (pull / pull-out / button / radar / smoke detector / water immersion). When danger occurs, an alarm signal can be issued through active triggering or passive sensing.

[0078] The alarm terminal system adopts a heterogeneous communication protocol networking scheme, achieving multi-mode compatibility through a protocol abstraction layer. The system supports the following mainstream protocols:

[0079] BLE (e.g., emergency call devices): low power consumption (button battery can work for 1-3 years), short-distance transmission of 10-30 meters.

[0080] Zigbee (Smoke Alarm Linkage System): Mesh networking achieves 250kbps medium-speed transmission with a response latency of <100ms.

[0081] LoRa (Gas Outdoor Alarm): 3-5km ultra-long range coverage, 0.3-50kbps data rate to meet extremely simple data reporting needs.

[0082] 433MHz (infrared detector): 1km line-of-sight one-way communication, cost is reduced by 40% compared to similar protocols, suitable for remote control alarms.

[0083] WiFi (Smart Camera): Adopts 802.11ah protocol to improve wall penetration and supports 10Mbps high-definition video streaming.

[0084] Cellular network (4G / 5G backup link): Automatic switching when the network is disconnected, with an average monthly data consumption of <30MB.

[0085] The alarm terminal uses a protocol conversion engine to be compatible with alarm signals issued by different protocols and converts all protocol messages into a unified data format for reporting to the cloud platform.

[0086] Entry guidance devices (door stickers) include passive and active door stickers. Passive door stickers have static QR codes / barcodes printed on them or have built-in NFC chips. Passive door stickers are designed with zero power consumption and no battery. Active door stickers display QR codes / barcodes on an electronic screen. The screen can be woken up by touch or a physical button. The screen is normally off and can be triggered to light up.

[0087] This system employs multiple security mechanisms to ensure data security during transmission, storage, and retrieval. These include: network communication security, sensitive data storage security, and multi-factor authentication when retrieving sensitive data.

[0088] Network communication employs SSL / TLS secure transmission mechanisms to ensure data is protected against tampering and leakage. For example, front-end applications and cloud platforms use secure internet transmission protocols such as HTTPS (HTTP+SSL / TLS), while alarm terminals and cloud platforms use secure IoT transmission protocols such as MQTTS (MQTT+SSL / TLS). SSL / TLS protocols provide multi-layered security in network communication, ensuring secure and reliable data transmission. They ensure communication security through the following methods:

[0089] Data encryption: The SSL / TLS protocol uses encryption technology to ensure that data is not eavesdropped on or tampered with during transmission. Even if the data is intercepted, attackers will not be able to decipher its contents.

[0090] Data integrity: The SSL / TLS protocol uses Message Authentication Code (MAC) to verify the integrity of data and ensure that the data has not been tampered with during transmission.

[0091] Authentication: The SSL / TLS protocol verifies the identities of both communicating parties through digital certificates, preventing man-in-the-middle attacks and ensuring that both parties are authentic and trustworthy.

[0092] Preventing replay attacks: The SSL / TLS protocol prevents attackers from replaying old communication data by using random numbers and session keys.

[0093] Once activated, the door sticker displays the unlocking method, including the smart lock password, key storage location, and emergency contact phone number, among other sensitive information. Due to privacy and property risks, this data will be stored encrypted to protect against external attacks such as database intrusion and data breaches, while also preventing unauthorized access and malicious theft by internal personnel. Even if the physical storage medium is lost, the encrypted data remains unreadable.

[0094] When an indoor device triggers an alarm, rescue personnel need to complete multiple verification steps before obtaining access to the home. These verification methods include: mobile phone number verification, biometric verification, and location verification. Users can choose at least one of the following methods based on their personal preferences:

[0095] Mobile phone number verification: The mobile phone number has been verified by a third-party platform (such as WeChat), and the authorization of the mobile phone number is completed by the third-party platform to ensure the authenticity of the rescue personnel.

[0096] Location verification: Based on the real-time location information of rescue personnel (such as Beidou, GPS and other global satellite navigation and positioning systems), if the location is outside the 30-meter range of the alarm address, the door opening information will not be displayed.

[0097] Biometric verification: After the user sets up this function, rescuers use their mobile phones to perform facial recognition. Only after successful verification can the door opening information be displayed. For example, the camera is turned on to capture the face, and the face is confirmed to be real by blinking, shaking the head, nodding, etc.

[0098] If rescuers' mobile phones cannot connect to the network or they are unable to obtain door opening information through the cloud platform, they can obtain door opening methods by calling customer service or clicking the one-time emergency button.

[0099] Here is a specific implementation example: User A suddenly slips and falls while showering in their own bathroom. The rescue process of a multi-node linked home emergency rescue system is as follows:

[0100] Trigger: User A pulls down the casing of the slave unit, and the slave unit sends a signal via Bluetooth.

[0101] Activation: Cloud binding of door sticker ID "1234" to this event.

[0102] Rescue: The paramedic scans the door sticker, and the cloud verifies: the mobile phone location is 30 meters away from the residence (passed), facial recognition (passed), and mobile phone number authorization (allowed); the paramedic's mobile phone is then returned with: "electronic door lock password 123456".

[0103] Traceability: Blockchain records rescuer information (alarm event ID, facial photo, timestamp, door sticker ID, rescuer ID / name / phone number).

[0104] This invention employs an indoor multi-sub-unit, multi-host layout, combining an emergency rescue network system comprised of the Internet of Things (IoT), the internet, a cloud platform, and door unlock stickers. In the event of danger, users can trigger alarms from anywhere in their homes. Upon receiving the alarm information, the platform immediately notifies rescue personnel of the alarm location and the user's pre-set medical emergency information. Upon arrival, rescue personnel can quickly enter the home to provide assistance, guided by the door unlock stickers. This invention significantly improves rescue efficiency, reduces rescue time, and better serves emergency situations for home users.

[0105] This invention provides a home emergency rescue system based on multi-node linkage, and also performs the following operations:

[0106] Determine if there are any people passing by the door during the activation period of the target door sticker;

[0107] Among them, determining whether there are people passing by the door can be based on human body model recognition based on cameras (such as video doorbells);

[0108] If there are people passing by, locate the user's mobile communication terminal;

[0109] Among them, the user's mobile communication terminal is: user communication device that is connected to the Internet of Things, such as: mobile phone, and the positioning is achieved through GPS technology;

[0110] If the location of the mobile communication terminal matches the user's current location, a reminder message will be sent through the mobile communication terminal.

[0111] The user's current location is the location where the alarm signal was sent; the reminder message is: a message indicating that someone has passed by the door.

[0112] If the location of the mobile communication terminal is inconsistent with the user's current location, determine whether there is a movable network device;

[0113] Among them, mobile networked devices are networked IoT home devices, such as robot vacuum cleaners;

[0114] If a mobile network-connected device exists, control the corresponding network-connected device to go to the user's current location and deliver a reminder message to the user;

[0115] If there are no mobile network devices, extract the communication characteristics of the terminal processing device; the communication characteristics include: the first distance between the terminal processing device and the user's current location, the second distance between the terminal processing device and the nearest access AP, and the wall penetration information of the connection line between the terminal processing device and the nearest access AP.

[0116] Among them, the terminal processing device is the gateway of the Internet of Things (IoT) device that can transmit information, such as the multimedia gateway of a TV; the IoT device that can transmit information refers to the IoT device having voice broadcast function; the first distance is the straight-line distance between the terminal processing device and the user's current location; the second distance is the straight-line distance between the terminal processing device and the nearest access AP; the wall penetration information is the wall material and wall thickness through which the connection between the terminal processing device and the nearest access AP is penetrated by a straight line.

[0117] The communication features are quantized according to the preset quantization relationship of the feature type corresponding to the communication features, and the transmission degree of the network device corresponding to the terminal processing device is obtained.

[0118] In determining the preset quantization relationship for feature types, for multiple alarm scenarios that users may encounter and for transmitting information about people coming and going using terminal processing devices, during the experiment, experts determined the combination of quantization rules for communication features of different feature types based on experience. Based on this combination of quantization rules, the transmission signal strength was calculated experimentally. At the same time, experts verified whether the network device corresponding to the terminal processing device with the highest transmission signal strength had the best transmission effect compared with other network devices under the same experimental conditions. After conducting a large number of experiments, the verified combination of quantization rules was determined as the quantization relationship.

[0119] The reminder information is transmitted through the networked device with the highest reliability.

[0120] Based on user feedback on the alert information, determine whether it is necessary to immediately notify passing personnel to provide in-home assistance;

[0121] The feedback information includes: information provided by the user regarding whether immediate assistance from passing personnel is required; when determining whether immediate assistance from passing personnel is required, if the user clearly indicates that "immediate assistance from passing personnel is not required," then it is determined that no assistance from passing personnel is required; otherwise (if the user does not respond or indicates that assistance from passing personnel is required), then it is determined that assistance from passing personnel is required.

[0122] If it is necessary to immediately notify passing personnel for door-to-door rescue, then the appropriate notification shall be made;

[0123] If it is not necessary to immediately notify passing personnel for home rescue, then continue to wait for rescue personnel to arrive.

[0124] The working principle and beneficial effects of the above technical solution are as follows:

[0125] In reality, rescuers are often located some distance from the homes of those in danger. Passively waiting for rescuers is inefficient. Therefore, once the alarm has activated the target door sticker, IoT devices equipped with cameras, such as video doorbells, can be used to detect whether anyone is passing by. If there is indeed a need for someone to actively provide assistance, they can be guided to carry out the rescue more quickly.

[0126] When determining whether there is a genuine need for proactive rescue of passing personnel, it is necessary to check whether the location of the user's mobile communication terminal matches the user's current location (e.g., if the user is carrying a mobile phone, they will match; otherwise, they will not). If they match, relevant information reminding the passing personnel can be sent directly via the mobile phone (mobile communication terminal). If they do not match, the user cannot communicate directly, so it is necessary to determine whether there is a mobile network-connected device. Mobile network-connected devices have greater flexibility and can help the user transmit messages when direct communication is not possible. Mobile network-connected devices obtain information about passing personnel monitored by cameras through a cloud platform and convert it into locally readable voice broadcast reminders to be delivered to the user.

[0127] When no mobile networked devices are available, reminder information can be transmitted using fixed-location networked devices with voice broadcast capabilities. Generally, the closer the terminal processing device (the gateway of the fixed-location networked device) is to the user's current location, the better the voice broadcast effect, and the higher the priority should be given to the corresponding networked device. Furthermore, after the camera detects a person passing by, it needs to upload the detection information to the cloud platform. The fixed-location networked device then connects to the cloud platform via the local area network to obtain the reminder information. Therefore, the transmission quality of the fixed-location networked device is affected by the strength of its connection signal with the local area network. Thus, obtaining the second distance between the terminal processing device and the nearest access AP, as well as the wall penetration information of the connection cable between the terminal processing device and the nearest access AP, is crucial. The closer the second distance, the worse the signal shielding effect of the wall penetration, and the stronger the local area network connection signal. In summary, by quantifying the communication characteristics according to the preset quantization relationship of the characteristic type corresponding to the communication characteristics, the transmission reliability of the networked device corresponding to the terminal processing device can be obtained. Transmitting reminder information through the networked device with the highest transmission reliability can further improve the suitability of the transmission device selection. The quantification relationship is a reliable quantification relationship that has been verified by experts through a large number of experiments. Based on this, the rationality of the reliability calculation is improved.

[0128] After sending a reminder message to the user, the user may respond, indicating whether they need or not immediate assistance from passersby, or they may not respond (e.g., the user faints). Based on the feedback, the system determines whether immediate assistance from passersby is necessary. When notifying, a notification message can be sent via the video doorbell, such as: "Someone at home needs your help. Please scan the QR code on the door sticker for instructions on how to open the door." The verification method for passersby is the same as that for rescue personnel. Once the passersby enter the home, the smart home AI explains the situation to them and automatically dials the rescue personnel's number, enabling both parties to coordinate a relay rescue, further shortening the rescue time.

[0129] In addition, the user may be conscious and feel that they can wait for rescue, so they do not notify passersby.

[0130] This invention, when a door sticker is activated and the user is waiting for rescue, detects in real time whether there are passersby at the door. Based on the detection of passersby and the configuration of IoT devices in the user's home, it adaptively selects networked devices to transmit reminder information, determining whether there is indeed a need for proactive rescue from passersby. The selection of networked devices is based on their mobility and communication characteristics, fully utilizing the collaborative functions of smart home systems. It coordinates passersby and rescue personnel according to needs, shortening rescue time and further improving the timeliness of rescue.

[0131] This invention provides a home emergency rescue method based on multi-node linkage, such as... Figure 3 As shown, it includes:

[0132] Step 1: Obtain alarm signals from alarm sub-units installed in multiple home deployment locations;

[0133] Step 2: Based on the protocol conversion engine, convert the protocol messages of alarm signals issued by different protocols into a unified data format and report them to the cloud platform;

[0134] Step 3: Based on the parsing results of the protocol message, notify the rescue personnel and activate the target door sticker;

[0135] Step 4: Guide rescue personnel to enter the home for rescue by following the target door sticker;

[0136] The home emergency rescue method based on multi-node linkage also includes:

[0137] Determine if there are any people passing by the door during the activation period of the target door sticker;

[0138] If there are people passing by, locate the user's mobile communication terminal;

[0139] If the location of the mobile communication terminal matches the user's current location, a reminder message will be sent through the mobile communication terminal.

[0140] If the location of the mobile communication terminal is inconsistent with the user's current location, determine whether there is a movable network device;

[0141] If a mobile network-connected device exists, control the corresponding network-connected device to go to the user's current location and deliver a reminder message to the user;

[0142] If there are no mobile network devices, extract the communication characteristics of the terminal processing device; the communication characteristics include: the first distance between the terminal processing device and the user's current location, the second distance between the terminal processing device and the nearest access AP, and the wall penetration information of the connection line between the terminal processing device and the nearest access AP.

[0143] The communication features are quantized according to the preset quantization relationship of the feature type corresponding to the communication features, and the transmission degree of the network device corresponding to the terminal processing device is obtained.

[0144] The reminder information is transmitted through the networked device with the highest reliability.

[0145] Based on user feedback on the alert information, determine whether it is necessary to immediately notify passing personnel to provide in-home assistance;

[0146] If it is necessary to immediately notify passing personnel for door-to-door rescue, then the appropriate notification shall be made;

[0147] If it is not necessary to immediately notify passing personnel for home rescue, then continue to wait for rescue personnel to arrive.

[0148] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A home emergency rescue system based on multi-node linkage, characterized in that, include: The distributed triggering module is used to acquire alarm signals from alarm sub-units installed in multiple home deployment locations; The terminal processing module is used to convert alarm signal protocol messages from different protocols into a unified data format and report them to the cloud platform based on the protocol conversion engine. The cloud-based collaboration module is used to notify rescue personnel and activate the target door sticker based on the parsing results of the protocol messages; The in-home guidance module is used to guide rescue personnel to conduct in-home rescues by following the target door sticker.

2. The home emergency rescue system based on multi-node linkage as described in claim 1, characterized in that, Also perform the following operations: When a user uses a home emergency rescue system based on multi-node linkage for the first time, the system obtains the address binding relationship, alarm status display information, and non-alarm status display information set by the user in the front-end application.

3. The home emergency rescue system based on multi-node linkage as described in claim 1, characterized in that, The types of sensors used to trigger alarm signals include: button triggers, pull cord switches, radar detection, smart mattress sensors, smoke sensors, gas leak sensors, water immersion sensors, and cameras.

4. The home emergency rescue system based on multi-node linkage as described in claim 1, characterized in that, The terminal processing module adopts a heterogeneous communication protocol networking scheme and achieves multi-mode compatibility through a protocol abstraction layer. The communication protocols supported by the terminal processing module include: BLE, Zigbee, LoRa, 433MHz, WiFi and cellular networks. The heterogeneous communication protocol networking scheme includes: The alarm signal is reported to the cloud platform through the home processing terminal; and / or, The alarm signal is reported to the cloud platform via cellular network or home router.

5. The home emergency rescue system based on multi-node linkage as described in claim 1, characterized in that, The in-home guidance module guides rescue personnel to conduct in-home rescues by following the target door sticker, including: After rescue personnel read the door sticker, they perform cloud-based access authentication. If cloud-based authorization is successful, blockchain evidence will be stored and door opening information will be sent out. If cloud-based authorization fails, a non-alarm status message will be displayed. Cloud-based access control includes: alarm status verification, mobile phone number verification, location verification, and biometric verification.

6. The home emergency rescue system based on multi-node linkage as described in claim 1, characterized in that, Also includes: The system security module is used for data transmission based on the SSL / TLS secure transmission mechanism.

7. The home emergency rescue system based on multi-node linkage as described in claim 1, characterized in that, The target door stickers include active door stickers and passive door stickers.

8. The home emergency rescue system based on multi-node linkage as described in claim 7, characterized in that, The door sticker design for passive door stickers includes: Door sticker designs without privacy screens, or door sticker designs with privacy screens, or door sticker designs combining scratch-off layers and thermochromic inks, or door sticker designs with masking privacy screens, or door sticker designs that combine QR code scanning and NFC.

9. The home emergency rescue system based on multi-node linkage as described in claim 7, characterized in that, The door sticker designs for active door stickers include: Door sticker design triggered by physical buttons or door sticker design triggered by capacitive touch.

10. A home emergency rescue method based on multi-node linkage, characterized in that, include: Step 1: Obtain alarm signals from alarm sub-units installed in multiple home deployment locations; Step 2: Based on the protocol conversion engine, convert the protocol messages of alarm signals issued by different protocols into a unified data format and report them to the cloud platform; Step 3: Based on the parsing results of the protocol message, notify the rescue personnel and activate the target door sticker; Step 4: Guide rescue personnel to enter the house for rescue by following the target door sticker.

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