CN111554069B

CN111554069B - Intelligent alarm method and device

Info

Publication number: CN111554069B
Application number: CN202010371545.9A
Authority: CN
Inventors: 张海平; 陈彪
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2022-08-02
Anticipated expiration: 2040-05-06
Also published as: CN111554069A

Abstract

The application discloses an intelligent alarm method and an intelligent alarm device, wherein the method comprises the following steps: the method comprises the steps of obtaining target vital sign data of a target object, determining a body state of the target object based on the target vital sign data, determining alarm parameters based on the body state of the target object, determining the position of the target object through the UWB module when the body state of the target object is in an abnormal state, sending alarm information to target equipment when the duration of the abnormal state of the body state of the target object is longer than or equal to a preset duration, and controlling an alarm module to alarm based on the alarm parameters, wherein the alarm information carries the target vital sign data and the position. The method can realize the positioning and alarming of the target object when the body state of the target object is abnormal, thereby reducing the loss and casualties caused by accidents.

Description

Intelligent alarm method and device

Technical Field

The application relates to the technical field of electronics, in particular to an intelligent alarm method and device.

Background

With the development of wireless positioning technology, location services are becoming an indispensable part of people's life and work. Meanwhile, the rise of intelligent monitoring equipment promotes the further improvement of the demand on position service, and positioning and alarming under dangerous conditions are of great importance. At present, the alarming for danger generally judges whether a user is in danger or not through the positioning of the user and the position relation between dangerous areas, but can not timely and effectively discover the accident happening when the user is in a safe environment and alarm.

Disclosure of Invention

The embodiment of the application provides an intelligent alarm method and device, which can be used for positioning and alarming the dangerous situation caused by an accident and reducing the situation that the best rescue opportunity is missed due to unmanned discovery.

In a first aspect, an embodiment of the present application provides an intelligent alarm method, which is applied to a mobile terminal including an ultra wideband UWB module, and the method includes:

acquiring target vital sign data of a target object;

determining a physical state of the target subject based on the target vital signs data;

determining, by the UWB module, a position of the target object when a physical state of the target object is in an abnormal state;

and when the duration of the body state of the target object in the abnormal state is longer than or equal to the preset duration, sending alarm information to target equipment, wherein the alarm information carries the target vital sign data and the position.

In a second aspect, an embodiment of the present application provides an intelligent alarm device, which is applied to a mobile terminal including a UWB module, and the device includes:

the acquisition module is used for acquiring target vital sign data of a target object;

a determination module for determining a physical state of the target object based on the target vital signs data;

the determining module is further used for determining the position of the target object through the UWB module when the body state of the target object is in an abnormal state;

and the receiving and sending module is used for sending alarm information to target equipment when the duration of the body state of the target object in the abnormal state is longer than or equal to the preset duration, and the alarm information carries the target vital sign data and the position.

In a third aspect, embodiments of the present application provide a mobile terminal comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program comprises instructions for performing the steps of the method according to the first aspect of the embodiments of the present application.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program enables a computer to perform some or all of the steps described in the first aspect of the embodiment of the present application.

In a fifth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

It can be seen that the intelligent danger alarm method and the intelligent danger alarm device described in the embodiments of the present application are applied to a mobile terminal including a UWB module, acquire target vital sign data of a target object, determine a body state of the target object based on the target vital sign data, determine a position of the target object through the UWB module when the body state of the target object is in an abnormal state, and send alarm information to a target device when a duration of the body state of the target object in the abnormal state is greater than or equal to a preset duration, wherein the alarm information carries the target vital sign data and the position. The method can realize the positioning and alarming of the target object when the body state of the target object is abnormal, thereby reducing the loss and casualties caused by accidents.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application;

fig. 2 is a schematic diagram of a software structure of a mobile terminal according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a communication architecture provided by an embodiment of the present application;

FIG. 4 is a schematic flow chart of an intelligent alarm method according to an embodiment of the present application;

fig. 5A is a schematic diagram of a mobile terminal receiving a setting signal according to an embodiment of the present application;

FIG. 5B is a schematic diagram illustrating a method for determining a position of a target object according to an embodiment of the present disclosure;

fig. 6 is a block diagram of functional units of an intelligent alarm device provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

In order to better understand the scheme of the embodiments of the present application, the following first introduces the related terms and concepts that may be involved in the embodiments of the present application.

1) The mobile terminal may be a portable mobile terminal that also contains other functions such as personal digital assistant and/or music player functions, such as a mobile phone, a tablet computer, a wearable mobile terminal with wireless communication functions (e.g., a smart watch, a smart bracelet, smart glasses), and so on. Exemplary embodiments of the portable mobile terminal include, but are not limited to, portable mobile terminals that carry an IOS system, an Android system, a Microsoft system, or other operating systems. The portable mobile terminal may also be other portable mobile terminals such as a Laptop computer (Laptop) or the like. It should also be understood that in other embodiments, the mobile terminal may be other terminals carrying UWB modules.

2) A signal transceiving apparatus is an apparatus deployed in an indoor environment or an outdoor environment to transceive signals. For example, the signal Transceiver device may be an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a Home Base Station (e.g., Home evolved Node B or Home Node B, HNB), an Access Controller (AC), a WIFI Access Point (AP), and the like.

3) Ultra Wideband (UWB) is a wireless carrier communication technology, which does not use sinusoidal carriers, but uses nanosecond-level non-sinusoidal narrow pulses to transmit data, so that the occupied frequency spectrum range is wide. The UWB has the advantages of low system complexity, low power spectral density of transmitted signals, insensitivity to channel fading, low interception capability, high positioning accuracy and the like, and is particularly suitable for high-speed wireless access in dense multipath places such as indoor places and the like.

In a first section, the software and hardware operating environment of the technical solution disclosed in the present application is described as follows.

Fig. 1 shows a schematic structural diagram of a mobile terminal 100. The mobile terminal 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 122, a UWB module 130, a charge management module 140, a power management module 141, a battery 142, an alarm module 150, and the like, wherein the external memory interface 120, the internal memory 121, the USB interface 122, the UWB module 130, the charge management module 140, the power management module 141, and the alarm module 150 are all connected to the processor 110.

It is to be understood that the illustrated structure of the embodiment of the present application does not constitute a specific limitation to the mobile terminal 100. In other embodiments of the present application, the mobile terminal 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. Wherein the different processing units may be separate components or may be integrated in one or more processors. In some embodiments, the mobile terminal 100 may also include one or more processors 110. The controller can generate an operation control signal according to the instruction operation code and the time sequence signal to complete the control of instruction fetching and instruction execution. In other embodiments, a memory may also be provided in processor 110 for storing instructions and data. Illustratively, the memory in the processor 110 may be a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. This avoids repeated accesses and reduces the latency of the processor 110, thereby improving the efficiency with which the mobile terminal 100 processes data or executes instructions.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a SIM card interface, a USB interface, and/or the like. The USB interface 122 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 122 may be used to connect a charger to charge the mobile terminal 100, and may also be used to transmit data between the mobile terminal 100 and peripheral devices. The USB interface 122 may also be used to connect to a headset to play audio through the headset.

It should be understood that the interfacing relationship between the modules illustrated in the embodiments of the present application is only an exemplary illustration and is not a structural limitation of the mobile terminal 100. In other embodiments of the present application, the mobile terminal 100 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The UWB module 130 is used for acquiring positioning data of a position where a target object is located; the UWB module 130 includes a UWB tag fixed to the mobile terminal 100, and information can be exchanged with a signal transceiving apparatus including the UWB module 130 based on the UWB tag.

The alarm module 150 is used for alarming the physical state of the target object, and the alarm module 150 may include a speaker 151, a receiver 152, a microphone 153, a flash lamp 154, and the like, and may control the speaker 151 and/or the flash lamp 154 to alarm according to the alarm parameters of the alarm module 150.

The charging management module 140 is configured to receive charging input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger via the USB interface 130. In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the electronic device 100. The charging management module 140 may also supply power to the electronic device through the power management module 141 while charging the battery 142.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives the input of the battery 142 and/or the charging management module 140, and supplies power to the processor 110, the internal memory 121, the external memory, the display screen, the camera, the wireless communication module 162, and the like. The power management module 141 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In some other embodiments, the power management module 141 may also be disposed in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may be disposed in the same device.

Further, the mobile terminal may further include an antenna 1, an antenna 2, a mobile communication module 161, a wireless communication module 162, a key module 170, a reset module 171, a timing module 172, and a vital signs collecting module 180, wherein the vital signs collecting module 180, the communication module 160, the key module 170, the reset module 171, and the timing module 172 are all connected to the processor 110.

The vital signs collection module 180 may include: temperature sensor 181, pulse sensor 182, respiration sensor 183, three-axis acceleration sensor 184, blood oxygen sensor 185, proximity light sensor 186, fingerprint sensor 187, bone conduction sensor 188, and the like. The temperature sensor 181 may include a contact temperature sensor and a non-contact temperature sensor for detecting a surface temperature according to a measurement manner. The pulse sensor 182 may convert pressure variation generated during the detection of the arterial pulse into an electrical signal, the pulse sensor 182 may include a partial pressure type pulse sensor, a piezoresistive type pulse sensor and a photoelectric type pulse sensor according to the signal collecting manner, the piezoelectric type and the piezoresistive type convert the pressure process of the pulse into a signal output through a micro-pressure type material (for example, a piezoelectric sheet and a bridge), and the photoelectric type pulse sensor converts the light transmittance variation of the blood vessel into a signal output through a reflection or correlation type manner during the pulse. Optionally, the pulse sensor 182 may further include a signal amplifier, and the signal amplifier may amplify the converted electrical signal and output the amplified electrical signal to the analog-to-digital converter. The three-axis acceleration sensor 184 determines the motion state of the human body through X, Y, Z the change of the acceleration of three axes, and the three-axis acceleration sensor 184 may include but is not limited to: capacitive, inductive, strain, piezoresistive, piezoelectric, etc.

The wireless communication function of the mobile terminal 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 161, the wireless communication module 162, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the mobile terminal 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 161 provides a solution including wireless communication of 2G/3G/4G/5G, etc. applied to the mobile terminal 100. The mobile communication module 161 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 161 can receive the electromagnetic wave from the antenna 1, and filter, amplify, etc. the received electromagnetic wave, and transmit to the modem processor for demodulation. The mobile communication module 161 can also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 161 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 161 may be disposed in the same device as at least some of the modules of the processor 110.

The wireless communication module 162 may provide a solution for wireless communication applied to the mobile terminal 100, including Wireless Local Area Networks (WLANs), such as wireless fidelity (Wi-Fi) networks, bluetooth (blue tooth, BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), UWB, and the like. The wireless communication module 162 may be one or more devices that integrate at least one communication processing module. The wireless communication module 162 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 162 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the memory capability of the mobile terminal 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

Internal memory 121 may be used to store one or more computer programs, including instructions. The processor 110 may cause the mobile terminal 101 to execute the method for displaying page elements provided in some embodiments of the present application, and various applications and data processing, etc. by executing the above-mentioned instructions stored in the internal memory 121. The internal memory 121 may include a program storage area and a data storage area. Wherein, the storage program area can store an operating system; the storage program area may also store one or more applications (e.g., gallery, contacts, etc.), and the like. The storage data area may store data (e.g., photos, contacts, etc.) created during use of the mobile terminal 100, and the like. Further, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage components, flash memory components, Universal Flash Storage (UFS), and the like. In some embodiments, the processor 110 may cause the mobile terminal 100 to execute the method for displaying page elements provided in the embodiments of the present application and other applications and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor 110.

Illustratively, fig. 2 shows a block diagram of a software configuration of the mobile terminal 100. The layered architecture divides the software into several layers, each layer having a clear role and division of labor. The layers communicate with each other through a software interface. In some embodiments, the Android system is divided into four layers, an application layer, an application framework layer, an Android runtime (Android runtime) and system library, and a kernel layer from top to bottom. The application layer may include a series of application packages.

As shown in fig. 2, the application package may include applications such as camera, gallery, calendar, phone call, map, navigation, WLAN, bluetooth, music, video, short message, etc.

The application framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions.

As shown in FIG. 2, the application framework layers may include a window manager, content provider, view system, phone manager, resource manager, notification manager, and the like.

The window manager is used for managing window programs. The window manager can obtain the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.

The content provider is used to store and retrieve data and make it accessible to applications. The data may include video, images, audio, calls made and received, browsing history and bookmarks, phone books, etc.

The view system includes visual controls such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, the display interface including the short message notification icon may include a view for displaying text and a view for displaying pictures.

The phone manager is used to provide a communication function of the mobile terminal 100. Such as management of call status (including on, off, etc.).

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and the like.

The notification manager enables the application to display notification information in the status bar, can be used to convey notification-type messages, can disappear automatically after a short dwell, and does not require user interaction. Such as a notification manager used to inform download completion, message alerts, etc. The notification manager may also be a notification that appears in the form of a chart or scroll bar text at the top status bar of the system, such as a notification of a background running application, or a notification that appears on the screen in the form of a dialog window. For example, text information is prompted in the status bar, a prompt tone is given, the mobile terminal vibrates, an indicator light flashes, and the like.

The Android Runtime comprises a core library and a virtual machine. The Android runtime is responsible for scheduling and managing an Android system.

The core library comprises two parts: one part is a function which needs to be called by java language, and the other part is a core library of android.

The application layer and the application framework layer run in a virtual machine. And executing java files of the application program layer and the application program framework layer into a binary file by the virtual machine. The virtual machine is used for performing the functions of object life cycle management, stack management, thread management, safety and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. For example: surface managers (surface managers), media libraries (media libraries), three-dimensional graphics processing libraries (e.g., OpenGL ES), 2D graphics engines (e.g., SGL), and the like.

The surface manager is used to manage the display subsystem and provide fusion of 2D and 3D layers for multiple applications.

The media library supports a variety of commonly used audio, video format playback and recording, and still image files, among others. The media library may support a variety of audio-video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.

The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is a layer between hardware and software. The inner core layer at least comprises a display driver, a camera driver, an audio driver and a sensor driver.

In a second section, example application scenarios disclosed in embodiments of the present application are described below.

By way of example, fig. 3 shows a schematic diagram of a communication architecture to which the present application is applicable. As shown in fig. 3, the communication framework includes a mobile terminal, a first signal transceiving device and a plurality of second signal transceiving devices, the first signal transceiving device and the second signal transceiving devices being communicable with the mobile terminal. The form and number of the mobile terminal, the first signal transceiver device and the second signal transceiver device shown in fig. 3 are only examples, and do not limit the embodiments of the present application.

The communication framework is applicable to an indoor environment and also applicable to an outdoor environment, and is not limited herein.

The indoor environment may be a mall, airport, exhibition hall, office building, warehouse, underground parking lot, teaching building, hotel, apartment, dormitory building, gym, theater, library, etc., among others.

The outdoor environment may be, for example, a park, a casino, an outdoor parking lot, a car theater, an open stadium, a school playground, and the like.

Wherein the first signal transceiving equipment and each second signal transceiving equipment are fixed in position in an indoor or outdoor environment.

Wherein the position of the first signal transceiving equipment and each second signal transceiving equipment in the indoor or outdoor environment is calibrated in advance.

In the embodiment of the application, the first signal transceiver device sends first information, then the second signal transceivers send second information, the mobile terminal receives the first information sent by the first signal transceiver device first, then receives the second information sent by the second signal transceivers, and finally the mobile terminal determines the position of the mobile terminal in the environment based on the time information of the first information sent by the first signal transceiver device, the time information of the second information sent by the second signal transceivers, the position of the first signal transceiver device in the environment and the positions of the second signal transceivers in the environment, so that accurate positioning is realized.

In the third section, the scope of protection of the claims disclosed in the embodiments of the present application is described below.

Referring to fig. 4, fig. 4 is a flowchart illustrating an intelligent alarm method applied to a mobile terminal including a UWB module according to an embodiment of the present application, and as shown in fig. 4, the intelligent alarm method includes the following operations.

Step 410: target vital sign data of the target object is acquired.

In this embodiment of the application, the mobile terminal may locally obtain the target vital sign data of the target object from the mobile terminal, and may also receive the target vital sign data sent by other devices, which is not limited herein. The local acquisition of the target vital sign data from the mobile terminal may be the acquisition of the target vital sign data from a memory of the terminal device, or the direct acquisition of data that is not stored in the memory when the vital sign data of the target object is acquired.

Further, the target vital signs data may include at least one of: body temperature data, pulse data, respiration data, motion data, and blood oxygen data. The mobile terminal may acquire target vital sign data of a target object in real time through a vital sign acquisition device in the mobile terminal, and the vital sign acquisition device may include but is not limited to: temperature sensor, pulse sensor, respiration sensor, triaxial acceleration sensor, blood oxygen sensor, etc. In specific implementation, the mobile terminal can measure the body temperature of the target object through the temperature sensor to obtain body temperature data; measuring the pulse beating frequency of a target object through a pulse sensor to obtain pulse data; respiratory data and the like are obtained by measuring the respiratory frequency of the target subject by a respiratory sensor. In some examples, the mobile terminal may also receive the vital sign data uploaded from other devices in the server.

In one possible example, the step S410 of obtaining the target vital sign data of the target object may include the following steps:

s11, acquiring a vital sign change curve of the target object;

s12, sampling the vital sign change curve to obtain a plurality of vital sign data;

s13, carrying out mean value operation on the plurality of vital sign data to obtain average vital sign data;

and S14, taking the average vital sign data as the target vital sign data.

In this embodiment, the vital sign change curve may be a vital sign change curve within a preset time period, the preset time period may be set by a user or default by a system, the vital sign change curve may be detected by the vital sign detection apparatus or sent by a server or other devices, a horizontal axis of the vital sign change curve is time, and a vertical axis thereof is vital sign data, such as body temperature data, pulse data, respiration rate, blood oxygen data, and the like. Further, the vital signs data may also be represented by different parameter data, e.g. the pulse data may be: pulse rate or pulse magnitude, the respiration data may be at least one of: the breathing force, the breathing sound, the breathing frequency, the breathing amplitude, etc., are not limited herein.

In the concrete implementation, in order to obtain a more effective target vital sign data, the mobile terminal can sample the vital sign change curve, and the concrete sampling mode can be as follows: and uniformly sampling or randomly sampling to obtain a plurality of vital sign data, carrying out mean value operation according to the plurality of vital sign data to obtain average vital sign data, and taking the obtained average vital sign data as target vital sign data. The sampling time period may be several fixed periods before and after a specific period as one time period, for example, set to 5, the vital sign data of 5 period times may be sampled and calculated as the target vital sign data of the current target object, and the subsequent periods may be analogized in sequence.

S420, determining the body state of the target object based on the target vital sign data.

The target vital sign data can be used for judging the current body state of the target object, for example, the body temperature data can be used for judging whether the target object has cold and fever symptoms, and when the body temperature data is lower than the normal value of the body temperature of a human body, the target object is possibly in a low fever state; when the body temperature data is higher than the normal body temperature value of the human body, the target object is possibly in a high fever state.

The body state of the human body in different scenes is different in performance, and the normal threshold range of the vital sign data is different, for example, the pulse frequency in a moving state is faster than the pulse frequency in a static state; the breathing rate in the sleep state is faster than the breathing rate in the wake-up state. Therefore, the mobile terminal can determine the current scene of the target object, the mobile device can pre-store the mapping relation between the scene and the vital sign threshold, and then determine the corresponding vital sign threshold under the scene according to the mapping relation, and then compare the target vital sign data with the vital sign threshold to obtain the body state of the target object. The scene may include: sports, sleep and still. Further, the motion scene may further include, according to the motion amount of the target object: running, swimming, walking, etc., the still scene may further include, according to the pose of the target object: standing, sitting still, lying on the back, etc. For example, the scene of the target object may be determined according to the motion data and/or the respiration data, and when the target object is in a walking scene, the physical state corresponding to the pulse data may be determined according to a pulse threshold corresponding to the walking scene.

Further, the physical state of the human body is represented by complexity and diversity, and the physical state of the target object cannot be accurately and efficiently determined using only one kind of data included in the vital sign data. Accordingly, the physical state may be determined simultaneously with a variety of data, for example, whether the target subject is currently in a hypertensive emergency state based on the pulse data and the respiration data, whether the target subject is currently in a high fever state based on the body temperature data and the respiration data, and the like.

In one possible example, the determining the physical state of the target object based on the target vital signs data comprises: acquiring a plurality of target vital sign data; calculating a mean and a mean square error of a plurality of the target vital sign data, and determining a physical state of the target subject based on the mean square error and the mean.

Acquiring a plurality of target vital sign data; calculating the average value and the mean square error of a plurality of target vital sign data, determining the target weight of the target object according to the preset mapping relation between the average value and the target weight, and determining the body state of the target object based on the mean square error, the average value and the target weight.

Wherein, a plurality of target vital sign data can be acquired in a specified time period, and the specified time period can be set by a user or defaulted by a system. The mobile terminal calculates an average value and a mean square error of target vital sign data in the time period, a preset mapping relation between the average value and a weight pair can be prestored in the mobile terminal, and then a target weight pair corresponding to the average value can be determined according to the mapping relation, the target weight pair can comprise a target first weight and a target second weight, the target first weight is a weight corresponding to the average value, the target second weight is a weight corresponding to the mean square error, wherein the sum of the first weight and the second weight can be 1, and the value ranges of the first weight and the second weight are both 0-1.

Further, the mobile terminal may perform a weighted operation on the average value, the mean square error and the weight value of each data in the target vital sign data to obtain a body state value corresponding to each data in the target vital sign data, where a specific calculation formula is as follows:

the body state value is the target first weight value, the average value and the target second weight value, the mean square error

In some examples, the mobile terminal may compare the average value of the target vital sign data with a vital sign threshold to obtain a target difference value, and perform a weighting operation according to the target difference value, the mean square error and the target weight value to obtain a body state value of the target object, where a specific formula is as follows:

the body state value is equal to the target first weight value, the target difference value and the target second weight value, the mean square error

In other examples, the mobile terminal may further obtain the body state value of the target object according to a ratio of the mean value to the mean square error of the target vital sign data. Of course, the embodiment of the present application also does not limit the calculation formula of other body state values.

Furthermore, the mobile terminal can determine the body state of the target object according to the body state value corresponding to each data in the target vital sign data. The average value reflects the vital sign data of the user, the mean square error reflects the stability of the vital sign data, and the body state of the user is reflected through two dimensions of the average value and the mean square error, so that the body state of the user can be accurately determined.

S430, when the body state of the target object is in an abnormal state, determining the position of the target object through the UWB module.

And the mobile terminal determines a body state value of the target object based on the target vital sign data, wherein each piece of data included in the target vital sign data corresponds to one body state value. And if any body state value is out of the threshold range, judging that the body state of the target object is in an abnormal state, wherein the threshold range is the value range of the body state value of the user in the normal state.

Further, the mobile terminal may store in advance a threshold range corresponding to each data in the vital sign data. Because there may be a difference in the physical state values of users of different ages, sexes, and professions, the mobile terminal may divide the threshold range more accurately according to the characteristics of the user, such as age, gender, and profession. In a specific implementation, the mobile terminal may obtain information of the age, the gender, the occupation, and the like of the user in a manner of user input, or may receive information of the age, the gender, the occupation, and the like of the user sent by the target device, which is not limited in this embodiment of the present application. The information that is not acquired is set according to a default value of the system, for example, in the case that the age of the user is not acquired, the age of the user is set to 40 by default.

In one possible example, the step S430 of determining the position of the target object through the UWB module may include the following steps:

s31, receiving setting signals sent by K signal transceiving equipment to obtain K setting signals, wherein K is a positive integer greater than 3;

s32, determining the flight time of each set signal to obtain K flight times;

and S33, determining the position of the target object based on the K flight durations.

The mobile terminal may include K signal transceiver devices in an area, where each signal transceiver device includes a UWB module. The ith signal transceiver device of the K signal transceiver devices may be used as a master transceiver device, the other K-1 signal transceiver devices may be used as slave transceiver devices, the master transceiver device periodically broadcasts a setting signal through a UWB module, and the setting signal may include device identification information for transmitting the setting signal and transmission time information for transmitting the setting signal. And after receiving a setting signal from the slave transceiver device, adding the device identification information of the slave transceiver device and the transmission time of the setting signal transmitted by the slave transceiver device into the setting signal, and broadcasting the setting signal after a preset time period.

And recording the receiving time of the setting signals sent by the K signal receiving and sending devices in the mobile terminal. The mobile terminal may calculate a flight time of the setting signal based on the receiving time of the setting signal and the sending time in the setting signal, and may know the signal transceiver device sending the setting signal based on the device identification information in the setting signal. The mobile terminal may determine the position of the target object based on the time of flight during which the signal transceiving equipment transmits the setting signal.

Optionally, determining the position of the target object based on the K flight durations may include:

establishing W distance difference equations based on the K flight durations, wherein W is a positive integer larger than 1 and smaller than K;

drawing W hyperbolas based on the W distance difference equations;

and determining the intersection point of the W hyperbolas as the position of the target object.

Wherein the distance difference equation is d _i,j ＝(|t _j -t _i |+T _i *c _ij ) C, the t _j Setting the flight time length of the signal from the jth signal transceiver device to the mobile terminal, t _i For the flight time of the setting signal from the ith signal transceiver device to the mobile terminal, T _i A time difference for the mobile terminal to continuously receive the setting signal from the ith signal transceiver device, c _ij A ratio of a time difference between the setting signal being sent by the ith signal transceiver device and the setting signal being received from the jth signal transceiver device to a period of the setting signal being sent by the ith signal transceiver device, where c is a speed of light, j is a positive integer less than or equal to K, and j is not equal to i, and i is a positive integer less than or equal to K.

Further, K signal transceivingThe position of the device is fixed, the main transceiver device may transmit the setting signal according to a pre-configured period, and a time difference between the transmission of the setting signal by the ith transceiver device and the reception of the setting signal from the jth transceiver device may be represented as: the time difference is 2 × the flight time from the ith signal transceiver device to the jth signal transceiver device + the preset time, and the flight time from the ith signal transceiver device to the jth signal transceiver device may be measured in advance, so that the time difference c is obtained by subtracting the preset time from the flight time of the ith signal transceiver device to the jth signal transceiver device _ij May be pre-measured.

Specifically, after the UWB module receives setting signals broadcasted by K signal transceiver devices, the mobile terminal calculates a flight time length of each setting signal to obtain K flight time lengths, and uses the ith signal transceiver device as a main transceiver device, calculates a difference between a receiving time of receiving the setting signal sent by the main transceiver device this time and a receiving time of receiving the setting signal sent by the main transceiver device in a previous cycle, and uses the difference as a time difference of continuously receiving the setting signal from the ith signal transceiver device, i.e., T _i . And then establishing W distance difference equations based on the K flight durations, and determining the intersection points of the W distance difference equations as the positions of the target object, wherein W is a positive integer smaller than K.

For example, as shown in fig. 5A, the signal transceiver 1 broadcasts the setting signal periodically according to T, and after receiving the setting signal, the signal transceiver 2 and the signal transceiver 3 retransmit the setting signal to the UWB module and the signal transceiver 1 in the mobile terminal. After the mobile terminal receives the setting signals sent by the signal transceiver device 1, the signal transceiver device 2 and the signal transceiver device 3, the mobile terminal takes the signal transceiver device 1 as a main transceiver device and takes the signal transceiver device 2 and the signal transceiver device 3 as auxiliary transceiver devices. The mobile terminal calculates the set signal according to the receiving time and the sending time of the set signal, and the flight time t to the mobile terminal sent by the signal transceiver 1, the signal transceiver 2 and the signal transceiver 3 ₁ 、t ₂ And t ₃ (ii) a According to again according to t ₁ 、t ₂ And t ₃ The equation for the distance difference is as follows:

wherein d is ₁₂ For the difference in distance from the mobile terminal to the signal transceiving equipment 1 and from the mobile terminal to the signal transceiving equipment 2, d ₁₃ For the difference in distance from the mobile terminal to the signal transmission and reception device 1 and from the mobile terminal to the signal transmission and reception device 3, c ₁₂ For transmitting a setting signal to the signal transceiver device 1 measured in advance to receive a time difference T of the setting signal transmitted by the signal transceiver device 2 ₂ Ratio to T, c ₁₃ For transmitting a setting signal to the signal transceiver device 1 measured in advance to receive a time difference T of the setting signal transmitted by the signal transceiver device 3 ₃ Ratio to T, T ₁ The period of sending the setting signal for the mobile terminal to continuously receive the signal receiving apparatus 1, c is the speed of light.

Further, since the locus hyperbola of the moving point in which the distance difference from the two fixed points is constant can be obtained from d ₁₂ And d ₁₃ Determines the location of the mobile terminal. Specifically, the intersection of two hyperbolic equations may be taken as the position of the target object, as shown in fig. 5B.

S440, when the duration of the body state of the target object in the abnormal state is longer than or equal to a preset duration, sending alarm information to target equipment, wherein the alarm information carries the target vital sign data and the position.

Wherein, preset duration can be set by the user by oneself or the system is acquiescent, and in some examples, mobile terminal can set up according to information such as the age, sex, occupation of the user who acquires preset duration, for example, can be with the user of age or position high risk preset duration setting shorter.

The target device may be a terminal device bound with the mobile terminal through an account, and specifically, the target device may include a mobile phone or a smart phone with a wireless communication function, a portable game device, a laptop computer, a palmtop computer (PDA), a portable internet device vehicle-mounted device, and other terminal devices with a display screen or a projection display device; the target device may also be a terminal device of an emergency center or a security center, which is not limited herein.

In one possible example, the mobile terminal further comprises an alarm module, and the method further comprises:

determining an alarm parameter based on a physical state of the target subject; and controlling the alarm module to alarm based on the alarm parameters.

Wherein, alarm module can include audio alert module and light alarm module, alarm parameter can include at least one of following: light color, light brightness, light change frequency, sound magnitude and sound type.

Optionally, the determining an alarm parameter based on the physical state of the target object includes:

and determining a body abnormity grade corresponding to the body state of the target object, and determining the alarm parameter based on a preset mapping relation between the body abnormity grade and the alarm parameter.

The body state of the target object is determined according to the body state values, and the mobile terminal may determine the body abnormality level of the target object according to a mapping relationship between the number of the body state values and the body abnormality level, for example, when one body state value is in the threshold range, the body abnormality level of the target object may be 1, when two body state values are in the threshold range, the body abnormality level of the target object may be 2, and so on. In some examples, the mobile terminal may also determine the physical abnormality level of the target object according to a mapping relationship between a weighted sum of all the physical state values and the differences of the closest threshold range and the physical abnormality level, for example, when the weighted sum of the differences is less than 2, the physical abnormality level of the target object may be 1, when the weighted sum of the differences is less than 3, the physical abnormality level of the target object may be 2, and so on. Of course, the embodiments of the present application are not limited to other methods for determining the body abnormality level of the target object according to the body state value.

The mobile terminal may pre-store a mapping relationship between the preset body abnormal level and the alarm parameter, and further, may determine the alarm parameter corresponding to the body abnormal level according to the mapping relationship, for example, a mapping table is provided in table 1:

TABLE 1

Grade of physical abnormality	Alarm parameters
		Grade 1 physical disorder	Alarm parameter 1
Grade 2 physical disorder	Alarm parameters 2
		…	…
Grade n of physical abnormality	Alarm parameter n

That is, corresponding alarm parameters are set for different body abnormality levels, for example, a body abnormality level 1 may correspond to an alarm parameter 1, and a body abnormality level 2 may correspond to an alarm parameter 2.

In specific implementation, the mobile terminal may obtain the body state value of the target object, and the mobile terminal may further pre-store a mapping relationship between the number of preset body state values and the body abnormal level, and further determine the body abnormal level of the target object according to the mapping relationship, and then determine the alarm parameter according to the mapping relationship between the preset body abnormal level and the alarm parameter. And the mobile terminal respectively adjusts the parameters of the voice alarm module and the light alarm module to the alarm module to alarm based on the alarm parameters.

In a possible example, when the duration of the body state of the target object being in the abnormal state is less than the preset duration, the mobile terminal may send abnormal information to the target device, where the abnormal information may carry the target vital sign data and the location. The user can analyze the reason that the target object is in the abnormal state at the position according to the abnormal information, so that the occurrence of accidents in the same scene is reduced.

It can be seen that the intelligent danger alarming method described in the embodiment of the present application is applied to a mobile terminal including a UWB module, acquires target vital sign data of a target object, determines a body state of the target object based on the target vital sign data, determines a position of the target object through the UWB module when the body state of the target object is in an abnormal state, and sends alarm information to a target device when a duration of the body state of the target object in the abnormal state is greater than or equal to a preset duration, the alarm information carrying the target vital sign data and the position. The method can realize the positioning and alarming of the target object when the body state of the target object is abnormal, thereby reducing the loss and casualties caused by accidents.

It will be appreciated that the mobile terminal, in order to carry out the above-described functions, may include corresponding hardware and/or software modules for performing the respective functions. The present application is capable of being implemented in hardware or a combination of hardware and computer software in conjunction with the exemplary algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed in hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, with the embodiment described in connection with the particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In this embodiment, the mobile terminal may be divided into functional modules according to the above method examples, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in the form of hardware. It should be noted that the division of the modules in this embodiment is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

In the case of dividing each function module corresponding to each function, fig. 6 shows a block diagram of functional units of the intelligent warning apparatus, as shown in fig. 6, the intelligent warning apparatus 600 is applied to a mobile terminal, and the intelligent warning apparatus 600 may include: an acquisition module 610, a determination module 620, and a transceiver module 630, wherein,

the acquiring module 610 is configured to acquire target vital sign data of a target object;

the determining module 620 is configured to determine a physical state of the target object based on the target vital sign data;

the determining module 620 is further configured to determine, by the UWB module, a position of the target object when the physical state of the target object is in an abnormal state;

the transceiver module 630 is configured to send alarm information to a target device when a duration of the body state of the target object in the abnormal state is greater than or equal to a preset duration, where the alarm information carries the target vital sign data and the position.

It should be noted that all relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

The mobile terminal provided by the embodiment is used for executing the intelligent alarm method, so that the same effect as the implementation method can be achieved.

In case of an integrated unit, the mobile terminal may comprise a processing module, a storage module and a communication module. The processing module may be configured to control and manage actions of the mobile terminal, for example, may be configured to support the mobile terminal to perform the steps performed by the obtaining module 610, the determining module 620, and the transceiver module 630. The memory module may be used to support the mobile terminal in executing stored program codes and data, etc. And the communication module can be used for supporting the communication between the mobile terminal and other equipment.

The processing module may be a processor or a controller. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., a combination comprising one or more microprocessors, Digital Signal Processing (DSP) and microprocessors, or the like. The storage module may be a memory. The communication module may specifically be a radio frequency circuit, a bluetooth chip, a Wi-Fi chip, or other devices that interact with other mobile terminals.

In an embodiment, when the processing module is a processor and the storage module is a memory, the mobile terminal according to the embodiment may be a device having the structure shown in fig. 1.

The embodiment further provides a computer storage medium, where computer instructions are stored in the computer storage medium, and when the computer instructions are run on a mobile terminal, the mobile terminal is caused to execute the relevant method steps to implement the intelligent alarm method in the embodiment.

The embodiment also provides a computer program product, which when running on a computer, causes the computer to execute the relevant steps to implement the intelligent alarm method in the above embodiment.

In addition, embodiments of the present application also provide an apparatus, which may be specifically a chip, a component or a module, and may include a processor and a memory connected to each other; the memory is used for storing computer execution instructions, and when the device runs, the processor can execute the computer execution instructions stored in the memory, so that the chip can execute the position determination method in the above-mentioned method embodiments.

The mobile terminal, the computer storage medium, the computer program product, or the chip provided in this embodiment are all configured to execute the corresponding method provided above, so that the beneficial effects achieved by the mobile terminal, the computer storage medium, the computer program product, or the chip may refer to the beneficial effects in the corresponding method provided above, and are not described herein again.

Through the description of the above embodiments, those skilled in the art will understand that, for convenience and simplicity of description, only the division of the above functional modules is used as an example, and in practical applications, the above function distribution may be completed by different functional modules as needed, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a module or a unit may be divided into only one logic function, and may be implemented in other ways, for example, a plurality of units or components may be combined or integrated into another apparatus, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An intelligent alarm method is applied to a mobile terminal comprising an ultra-wideband UWB module, and comprises the following steps:

acquiring target vital sign data of a target object, the target vital sign data comprising at least one of: body temperature data, pulse data, respiration data, motion data, and blood oxygen data;

determining, by the UWB module, a position of the target object when the physical state of the target object is in an abnormal state, including: receiving setting signals sent by K signal receiving and sending devices to obtain K setting signals, wherein K is a positive integer greater than 3, and K signals are received and sentThe ith signal transceiver device in the device is a master transceiver device, the other signal transceiver devices except the ith signal transceiver device in the K signal transceiver devices are slave transceiver devices, the K setting signals include a setting signal periodically broadcast by the master transceiver device according to a period T and a setting signal broadcast by the slave transceiver device after a predetermined time period elapses after the setting signal from the master transceiver device is received, the setting signal from the master transceiver device includes device identification information of the master transceiver device and transmission time for the master transceiver device to transmit the setting signal, and the setting signal from the slave transceiver device increases the device identification information of the slave transceiver device and the transmission time for the slave transceiver device to transmit the setting signal in the setting signal from the master transceiver device; determining the flight time of each setting signal based on the receiving time of the received setting signal and the sending time of the received setting signal to obtain K flight times; establishing W distance difference equations based on the K flight durations, wherein W is a positive integer larger than 1 and smaller than K, and the distance difference equation is d _i,j ＝(|t _j -t _i |+T _i *c _ij ) C, the t _j To set the time of flight of the signal from the jth signal transceiver device to the mobile terminal, t _i For setting the time of flight of a signal from said ith signal transceiving device to said mobile terminal, said T _i A time difference for the mobile terminal to continuously receive the setting signal from the ith signal transceiving equipment, c _ij A ratio of a time difference between the sending of the setting signal by the ith transceiver device and the receiving of the setting signal from the jth transceiver device to the period T, wherein the time difference between the sending of the setting signal by the ith transceiver device and the receiving of the setting signal from the jth transceiver device is: 2 + a flight time length from the ith signal transceiver device to the jth signal transceiver device + a preset time length, wherein c is an optical speed, j is a positive integer less than or equal to K, j is not equal to i, and i is a positive integer less than or equal to K; drawing W hyperbolas based on the W distance difference equations; the W stripThe intersection point of the hyperbolas is determined as the position of the target object;

setting a preset time length according to the acquired user information, wherein the user information comprises the age, the sex and the occupation of the target object, and sending alarm information to target equipment when the duration of the abnormal state of the body state of the target object is longer than or equal to the preset time length, wherein the alarm information carries the target vital sign data and the position;

wherein the determining a physical state of the target subject based on the target vital signs data comprises: judging the scene of the target object according to the motion data and/or the breathing data, determining a vital sign threshold corresponding to the scene where the target object is located at present based on the mapping relation between the scene and the vital sign threshold and the user information, and comparing the target vital sign data with the vital sign threshold to obtain the body state of the target object.

2. The method of claim 1, wherein the obtaining target vital signs data of the target object comprises:

acquiring a vital sign change curve of the target object;

sampling the vital sign change curve to obtain a plurality of vital sign data;

carrying out mean value operation on the plurality of vital sign data to obtain average vital sign data;

and taking the average vital sign data as the target vital sign data.

3. The method of claim 2, wherein said determining the physical state of the target subject based on the target vital signs data comprises:

acquiring a plurality of target vital sign data; calculating a mean and a mean square error of a plurality of the target vital sign data, and determining a physical state of the target subject based on the mean square error and the mean.

4. The method according to any of claims 1-3, wherein the mobile terminal further comprises an alarm module, the method further comprising:

determining an alarm parameter based on a physical state of the target subject;

and controlling the alarm module to alarm based on the alarm parameters.

5. The method of claim 4, wherein determining an alarm parameter based on the physical state of the target object comprises:

6. An intelligent alarm device, applied to a mobile terminal including a UWB module, the device comprising:

an obtaining module, configured to obtain target vital sign data of a target object, where the target vital sign data includes at least one of: body temperature data, pulse data, respiration data, motion data, and blood oxygen data;

a determination module for determining a physical state of the target object based on the target vital sign data;

the determining module is further configured to determine, by the UWB module, a position of the target object when the physical state of the target object is in an abnormal state, and includes: receiving setting signals sent by K signal transceiver devices to obtain K setting signals, wherein K is a positive integer greater than 3, the ith signal transceiver device in the K signal transceiver devices is a master transceiver device, the other signal transceiver devices except the ith signal transceiver device in the K signal transceiver devices are slave transceiver devices, and the K setting signals comprise setting signals periodically broadcast by the master transceiver device according to a period T and preset setting signals of the slave transceiver devices after the slave transceiver devices receive the setting signals from the master transceiver deviceThe setting signal from the master transceiver device includes the device identification information of the master transceiver device and the transmission time for the master transceiver device to transmit the setting signal, and the setting signal from the slave transceiver device adds the device identification information of the slave transceiver device and the transmission time for the slave transceiver device to transmit the setting signal to the setting signal from the master transceiver device; determining the flight time of each setting signal based on the receiving time of the received setting signal and the sending time of the received setting signal to obtain K flight times; establishing W distance difference equations based on the K flight durations, wherein W is a positive integer larger than 1 and smaller than K, and the distance difference equation is d _i,j ＝(|t _j -t _i |+T _i *c _ij ) C, the t _j To set the time of flight of the signal from the jth signal transceiver device to the mobile terminal, t _i For setting the time of flight of a signal from said ith signal transceiving device to said mobile terminal, said T _i A time difference for the mobile terminal to continuously receive the setting signal from the ith signal transceiving equipment, c _ij A ratio of a time difference between the sending of the setting signal by the ith transceiver device and the receiving of the setting signal from the jth transceiver device to the period T, wherein the time difference between the sending of the setting signal by the ith transceiver device and the receiving of the setting signal from the jth transceiver device is: 2 + a flight time length from the ith signal transceiver device to the jth signal transceiver device + a preset time length, wherein c is an optical speed, j is a positive integer less than or equal to K, j is not equal to i, and i is a positive integer less than or equal to K; drawing W hyperbolas based on the W distance difference equations; determining the intersection point of the W hyperbolas as the position of the target object;

the determining module is further configured to set a preset duration according to the acquired user information, where the user information includes the age, sex, and occupation of the target object;

the receiving and sending module is used for sending alarm information to target equipment when the duration of the body state of the target object in the abnormal state is longer than or equal to the preset duration, and the alarm information carries the target vital sign data and the position;

wherein, in respect of determining the physical state of the target subject based on the target vital signs data, the determination module is specifically configured to: judging the scene of the target object according to the motion data and/or the breathing data, determining a vital sign threshold corresponding to the scene where the target object is located at present based on the mapping relation between the scene and the vital sign threshold and the user information, and comparing the target vital sign data with the vital sign threshold to obtain the body state of the target object.

7. A mobile terminal, characterized in that the mobile terminal comprises a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps of the method according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a computer program stored for electronic data exchange, the computer program causing a computer to perform the method according to any one of claims 1-5.