Firefighter positioning tracking and vital sign monitoring system

Abstract

The utility model is suitable for the technical field of fire fighting, and provides a fireman positioning tracking and vital sign monitoring system. Comprising a command terminal, a handheld terminal and a monitoring device, the monitoring device comprises a positioning device for collecting position information of a firefighter, a vital sign monitoring device for collecting vital sign information of the firefighter, an audio and video device for collecting field audio and video, a falling detection device for collecting falling information of the firefighter, and a respirator air pressure monitoring device for collecting pressure information of a respirator worn by the firefighter; the handheld terminal obtains the information and sends the information to the command terminal; and the command terminal receives the information and sends command information to the handheld terminal. According to the utility model, the physical condition, the position, the danger level of a fire scene and the like of the firefighter can be confirmed in real time, and corresponding command information is sent, so that the firefighter can act according to the command information, the personal safety of the firefighter is improved, and casualties in fire fighting work are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire fighting, and in particular relates to a firefighter positioning tracking and vital sign monitoring system. Background Art

[0002] Fire is one of the most serious public emergencies. It is sudden and destructive, and the conditions on the scene are complex and diverse, resulting in many casualties among firefighters during fire fighting.

[0003] Therefore, how to effectively monitor the status of firefighters to reduce casualties during fire fighting is an important issue that needs to be solved urgently. Utility Model Content

[0004] The embodiment of the utility model provides a firefighter positioning tracking and vital signs monitoring system to solve the technical problem that the status of firefighters cannot be effectively monitored.

[0005] In a first aspect, an embodiment of the utility model provides a firefighter positioning tracking and vital signs monitoring system, comprising: a command terminal, a handheld terminal and a monitoring device, wherein the handheld terminal is respectively connected to the command terminal and the monitoring device for communication; the monitoring device comprises a positioning device, a vital signs monitoring device, an audio and video device, a fall detection device and a ventilator air pressure monitoring device;

[0006] The positioning device collects the position information of the firefighters, the vital signs monitoring device collects the vital signs information of the firefighters, the audio and video device collects the audio and video of the scene, the fall detection device collects the fall information of the firefighters, and the ventilator air pressure monitoring device collects the pressure information of the ventilator worn by the firefighters;

[0007] The handheld terminal acquires the position information, the vital sign information, the audio and video, the fall information, and the pressure information, and sends the position information, the vital sign information, the audio and video, the fall information, and the pressure information to the command terminal;

[0008] The command terminal receives the location information, the vital sign information, the audio and video, the fall information and the pressure information, and sends command information to the handheld terminal.

[0009] Optionally, there are multiple handheld terminals, including a first handheld terminal and a second handheld terminal, the first handheld terminal corresponds to a firefighter, and the second handheld terminal corresponds to a searcher;

[0010] The command terminal receives the location information, vital sign information, audio and video, fall information and pressure information sent by the first handheld terminal, and receives the location information, vital sign information, audio and video, fall information and pressure information sent by the second handheld terminal;

[0011] The command terminal sends a first command message to the first handheld terminal, and sends a second command message to the second handheld terminal; the first command message includes rescue measures, and the second command message includes a reminder to the firefighters for rescue and information about the firefighters.

[0012] Optionally, the firefighter location tracking and vital signs monitoring system further includes: a display screen connected to the handheld terminal in communication; the display screen is detachably connected to the handheld terminal;

[0013] The display screen displays the location information, the vital sign information, the audio and video, the fall information and the pressure information, and displays the command information.

[0014] Optionally, the vital signs monitoring device includes: a heart rate collector and a temperature collection unit;

[0015] The heart rate collector collects the heart rate information of the firefighters, and the temperature collection unit collects the body temperature information of the firefighters.

[0016] Optionally, the handheld terminal includes: a first communication device and a second communication device;

[0017] The first communication device is communicatively connected with the positioning device, the vital sign monitoring device, the audio and video device, the fall detection device and the ventilator air pressure monitoring device;

[0018] The second communication device is communicatively connected to the command terminal.

[0019] Optionally, the command terminal includes: a third communication device;

[0020] The third communication device is communicatively connected with the handheld terminal.

[0021] Optionally, the handheld terminal includes: a microphone and a speaker; the microphone and the speaker are respectively communicatively connected to the command terminal.

[0022] Optionally, the positioning device, the vital signs monitoring device, the fall detection device and the ventilator air pressure monitoring device are arranged on the fire-fighting protective equipment worn by firefighters.

[0023] Optionally, the audio and video device is arranged on a fire helmet worn by a firefighter.

[0024] Optionally, the handheld terminal includes: a power supply device; the power supply device supplies power to the handheld terminal.

[0025] The firefighter positioning tracking and vital signs monitoring system provided in the embodiment of the present application is provided with a command terminal, a handheld terminal and a monitoring device. The monitoring device includes a positioning device, a vital signs monitoring device, an audio and video device, a fall detection device and a ventilator pressure monitoring device. The handheld terminal obtains the position information, vital signs information, audio and video, fall information and pressure information related to the firefighter collected by the monitoring device, and sends the above information to the command terminal. The command terminal receives the above information and sends the command information to the handheld terminal, which can confirm the firefighter's physical condition, location and fire scene danger level in real time, and send corresponding command information so that the firefighter can act according to the command information, thereby improving the personal safety of the firefighter and reducing casualties in fire fighting.

[0026] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 It is a structural diagram of a firefighter positioning tracking and vital signs monitoring system provided by an embodiment of the present application;

[0029] Figure 2 It is a structural diagram of a firefighter positioning tracking and vital signs monitoring system provided in another embodiment of the present application.

[0030] Reference numerals:

[0031] 10: command terminal; 20: handheld terminal; 21: first handheld terminal; 22: second handheld terminal; 30: monitoring device; 31: positioning device; 32: vital signs monitoring device; 33: audio and video device; 34: fall detection device; 35: ventilator air pressure monitoring device. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] In the description of the present invention, it should be noted that the terms "top", "bottom", "up", "down", "left", "right", "front", "back", "inside", "outside", etc. used to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the position or component referred to must have a specific direction, a specific structure and operation, and therefore cannot be understood as a limitation on the present invention.

[0034] Fires are sudden and destructive, and the on-site conditions are complex and diverse, resulting in many casualties among firefighters. How to effectively monitor the status of firefighters to reduce casualties among firefighters is an important issue that needs to be solved urgently.

[0035] Based on the above problems, the inventors have discovered through research that a command terminal, a handheld terminal and a monitoring device can be set up. The monitoring device includes a positioning device, a vital signs monitoring device, an audio and video device, a fall detection device and a ventilator pressure monitoring device. The handheld terminal obtains the location information, vital signs information, audio and video, fall information and pressure information related to the firefighters collected by the monitoring device, and sends the above information to the command terminal. The command terminal receives the above information and sends the command information to the handheld terminal, so that the firefighters can act according to the command information and reduce casualties in fire fighting.

[0036] Figure 1 FIG. 1 is a schematic diagram of the structure of a firefighter positioning tracking and vital signs monitoring system provided by an embodiment of the present application. Figure 1 As shown, the firefighter positioning tracking and vital signs monitoring system includes: a command terminal 10, a handheld terminal 20 and a monitoring device 30, the handheld terminal 20 is respectively communicated with the command terminal 10 and the monitoring device 30; the monitoring device 30 includes a positioning device 31, a vital signs monitoring device 32, an audio and video device 33, a fall detection device 34 and a ventilator air pressure monitoring device 35.

[0037] Among them, the positioning device 31 collects the location information of the firefighters, the vital signs monitoring device 32 collects the vital signs information of the firefighters, the audio and video device 33 collects the audio and video of the scene, the fall detection device 34 collects the fall information of the firefighters, and the ventilator pressure monitoring device 35 collects the pressure information of the ventilator worn by the firefighters.

[0038] The handheld terminal 20 obtains location information, vital sign information, audio and video, fall information and pressure information, and sends the above location information, vital sign information, audio and video, fall information and pressure information to the command terminal 10.

[0039] The command terminal 10 receives the above-mentioned location information, vital sign information, audio and video, fall information and pressure information, and sends command information to the handheld terminal 20.

[0040] The positioning device 31, the vital sign monitoring device 32, the fall detection device 34 and the ventilator air pressure monitoring device 35 can be arranged on the firefighting protective equipment worn by the firefighters. The audio and video device 33 can be arranged on the fire helmet worn by the firefighters. The handheld terminal 20 is held by the firefighters.

[0041] Exemplarily, the firefighter positioning tracking and vital signs monitoring system may also include: a display screen (not shown) communicatively connected to the handheld terminal 20; the above-mentioned display screen is detachably connected to the handheld terminal 20; the display screen displays location information, vital signs information, audio and video, fall information and pressure information, as well as displays command information.

[0042] Optionally, in this embodiment, there can be multiple display screens, which can be connected to or separated from the handheld terminal 20 and can be worn on the user's wrist, making it convenient for the user to view relevant information in real time, so that the user can understand his or her own physical condition, on-site conditions and command information sent by the command terminal 10 in real time.

[0043] Exemplarily, the positioning device 31 can use relative positioning and ranging technology, such as pulse positioning technology, to dynamically measure the distance, direction and height difference of the target. Multi-sensor fusion technology and MEMS (Micro-Electro-Mechanical System) inertial navigation technology can also be used to locate the position, floor and route of the firefighter in real time. For example, the positioning device 31 can use the LPMS-NAV2 high-precision heading sensor, which has a high-precision single-axis gyroscope and a three-axis accelerometer embedded in it, and can collect three-axis acceleration, three-axis angular velocity and heading angle information, thereby outputting more accurate position information.

[0044] Optionally, the vital signs monitoring device 32 includes: a heart rate collector and a temperature collection unit. Among them, the heart rate collector collects the heart rate information of the firefighter, and the temperature collection unit collects the body temperature information of the firefighter. The vital signs monitoring device 32 can monitor the physiological state of the firefighter in real time, discover the physical condition problems that the firefighter may encounter, and take corresponding measures to ensure the health and safety of the firefighter. For example, when the vital signs monitoring device 32 detects that the heart rate of the firefighter exceeds the preset heart rate threshold range, a heart rate alarm prompt is issued. The vital signs monitoring device 32 can also be equipped with other sensors to monitor other information as needed. For example, the vital signs monitoring device 32 can also use the MAX30102 sensor to measure pulse and blood oxygen saturation. When using it, you only need to press your finger against the sensor, and the sensor can estimate the blood oxygen saturation and pulse (equivalent to the heartbeat).

[0045] Exemplarily, the audio and video device 33 transmits the audio and video data of the scene in real time, providing the command terminal 10 with first-hand information of the scene. The fall detection device 34 can automatically collect the fall information of the firefighter when the firefighter falls, and issue an alarm to prompt the fall, such as a buzzer alarm, so that other firefighters or rescuers around can carry out rescue.

[0046] Optionally, the ventilator air pressure monitoring device 35 can be a pressure sensor, which is used to collect the real-time pressure of the ventilator worn by the firefighter as pressure information. Accordingly, after obtaining the pressure information, the handheld terminal 20 calculates the gas consumption of the ventilator according to the pressure information, determines the gas supply time of the ventilator based on the gas consumption, and voice broadcasts the calculated gas consumption and gas supply time, such as through a matching headset, so that the firefighter can grasp the relevant information of the ventilator in real time. At the same time, the above-mentioned gas consumption and gas supply time can also be displayed in real time on the display screen, which is convenient for firefighters to understand the use status of the ventilator in a timely manner.

[0047] In addition, the handheld terminal 20 can also issue a ventilator pressure warning prompt when the real-time pressure of the ventilator is less than the preset pressure threshold, and the frequency of the warning prompt gradually increases as the real-time pressure continues to decrease. When the ventilator is abnormal, such as the real-time pressure of the ventilator is less than 6 MPa or the air supply pipeline leaks and causes the real-time pressure to be abnormal, the abnormality of the ventilator can be discovered in time and a warning prompt can be provided, so that the wearer can find the problem in time.

[0048] In addition, the firefighter positioning tracking and vital signs monitoring system can also include a temperature monitoring device, which is used to collect ambient temperature information and can use a temperature sensor such as the DS18B20 temperature sensor. Compared with traditional temperature measuring elements such as thermistors, the DS18B20 temperature sensor is small in size, has a wide applicable voltage, and a simple interface. The measurement temperature range is -55℃~+125℃, the accuracy is ±0.5℃, and it has a one-line bus structure. It is simple and economical, and can easily form a sensor network, improve the system's anti-interference ability, and can be well applied to firefighter rescue scenarios.

[0049] For example, in this embodiment, after the handheld terminal 20 obtains the location information, vital signs information, audio and video, fall information and pressure information, it processes the above information and sends the above information to the display screen for display, so that the user can view the relevant information in real time, so as to grasp his own physical condition, on-site conditions and the command information sent by the command terminal 10 in real time. At the same time, the handheld terminal 20 also sends the above information to the command terminal 10, and the command terminal 10 analyzes and processes the received information and sends the corresponding command information to the handheld terminal 20 according to the analysis results. Alternatively, the command terminal 10 sends the corresponding command information to the handheld terminal 20 according to the command command input by the terminal staff.

[0050] For example, the command terminal 10 determines whether the firefighter's current physical condition is abnormal based on the received vital signs information. If the firefighter is currently in an abnormal physical condition, the command terminal 10 sends a command message to the handheld terminal 20 requesting the firefighter to leave the fire scene. For example, the command terminal 10 performs image analysis and processing on the received audio and video to determine the danger level of the current fire scene. When the danger level is higher than the preset level, the command terminal 10 sends a command message to the handheld terminal 20 requesting the firefighter to leave the fire scene, or sends a command message to other handheld terminals 20 requesting firefighters at other fire scenes (such as fire scenes on other floors with low danger levels) to go to the current fire scene for support. And if the terminal staff understands the fire scene situation based on the audio and video obtained by the command terminal 10, and inputs a command instruction to the command terminal 10 on which firefighting tools should be used at the moment, the command terminal 10 sends a command message to the handheld terminal 20 on which firefighting tools should be used at the current fire scene.

[0051] The firefighter positioning tracking and vital signs monitoring system provided in the embodiment of the present application is provided with a command terminal, a handheld terminal and a monitoring device. The monitoring device includes a positioning device, a vital signs monitoring device, an audio and video device, a fall detection device and a ventilator pressure monitoring device. The handheld terminal obtains the position information, vital signs information, audio and video, fall information and pressure information related to the firefighter collected by the monitoring device, and sends the above information to the command terminal. The command terminal receives the above information and sends the command information to the handheld terminal, which can confirm the firefighter's physical condition, location and fire scene danger level in real time, and send corresponding command information so that the firefighter can act according to the command information, thereby improving the personal safety of the firefighter and reducing casualties in fire fighting.

[0052] In some embodiments, the handheld terminal may include: a first communication device and a second communication device; the first communication device is communicatively connected to a positioning device, a vital signs monitoring device, an audio and video device, a fall detection device and a ventilator air pressure monitoring device; the second communication device is communicatively connected to a command terminal.

[0053] Optionally, the first communication device is connected to the monitoring device for communication to obtain corresponding location information, vital signs information, audio and video, fall information and pressure information. The first communication device may be, for example, a LoRa (Long Range) communication module. The handheld terminal transmits and communicates data with the command terminal through the second communication device, for example, sending the above information obtained to the command terminal and receiving command information sent by the command terminal. The second communication device may be, for example, a 4G / 5G communication module.

[0054] Optionally, the handheld terminal may further include a data processing unit, a main storage unit, an output unit and a main control unit. The data processing unit is used to process the acquired location information, vital sign information, audio and video, fall information and pressure information, such as decoding the above information. The main storage unit is used to store the acquired information. The output unit is used to output the processed information. The main control unit is used to control and manage the operation of the data acquisition unit, the data processing unit, the main storage unit and the output unit.

[0055] In some embodiments, the command terminal includes: a third communication device; the third communication device is communicatively connected to the handheld terminal. The command terminal transmits and communicates data with the handheld terminal through the third communication device, and the third communication device can be, for example, a 4G / 5G communication module.

[0056] Exemplarily, the command terminal may also include a data analysis unit, an auxiliary decision-making command unit, and a command unit. The data analysis unit is used to analyze and process the acquired location information, vital signs information, audio and video, fall information, and pressure information to obtain processing results, such as performing image analysis on audio and video to obtain the danger level of the fire scene, obtaining the physical condition of the firefighters based on the vital signs information and fall information, and obtaining the use status of the ventilator based on the pressure information.

[0057] The auxiliary decision-making command unit is used to determine the command information based on the above-mentioned fire scene danger level, the physical condition of the firefighters and / or the use status of the ventilator, combined with the location information. The command information may include whether the firefighters have left the fire scene, what firefighting tools are used at the fire scene, and how the firefighters should save themselves when their physical condition is poor. In addition, the auxiliary decision-making command unit also stores a preset fire data model, which inputs location information, vital signs information, audio and video, fall information and pressure information, and outputs the dispatch information of each firefighter at the fire scene as command information to be sent to the handheld terminal. The command terminal is used to receive the command command input by the staff of the command terminal, and send the command information to the handheld terminal according to the command command.

[0058] In some embodiments, the handheld terminal includes: a power supply device; the power supply device supplies power to the handheld terminal.

[0059] In some embodiments, the handheld terminal includes: a microphone and a speaker; the microphone and the speaker are respectively connected to the command terminal for communication. Firefighters can communicate with the staff of the command terminal through the microphone and the speaker.

[0060] In some embodiments, the display screen includes a fourth communication device, a secondary storage unit, a secondary control unit and a display unit. The fourth communication device is connected to the handheld terminal for communication, and the display screen transmits data with the handheld terminal through the fourth communication device to receive location information, vital sign information, audio and video, fall information and pressure information. The secondary storage unit is used to store the above information obtained. The display unit is used to display the above information. The main control unit is used to control and manage the operation of the fourth communication device, the secondary storage unit and the display unit.

[0061] In some embodiments, the handheld terminal and the command terminal can also achieve more extensive data transmission through the network services provided by the operator.

[0062] In some embodiments, reference Figure 2 There can be multiple handheld terminals, including a first handheld terminal 21 and a second handheld terminal 22. The first handheld terminal 21 corresponds to the firefighter, and the second handheld terminal 22 corresponds to the rescuer. The command terminal 10 receives the location information, vital sign information, audio and video, fall information and pressure information sent by the first handheld terminal 21, and receives the location information, vital sign information, audio and video, fall information and pressure information sent by the second handheld terminal 22.

[0063] The command terminal 10 sends a first command message to the first handheld terminal 21 and sends a second command message to the second handheld terminal 22; the first command message includes rescue measures, and the second command message includes a reminder to the firefighters for rescue and the firefighters' information.

[0064] Exemplarily, when a firefighter is in a dangerous situation at a fire scene, the firefighter positioning tracking and vital signs monitoring system can be used to rescue the firefighter. The firefighter holds a first handheld terminal 21, and the rescuer holds a second handheld terminal 22. The first monitoring device corresponding to the firefighter is set on the firefighting protective equipment and fire helmet worn by the firefighter, and the second monitoring device corresponding to the rescuer is set on the firefighting protective equipment and fire helmet worn by the rescuer. The command terminal 10 receives the firefighter's location information, vital signs information, audio and video, fall information and pressure information sent by the first handheld terminal 21, determines the firefighter's physical condition, position, ventilator usage status, fire scene danger level, etc., and gives rescue measures according to the firefighter's physical condition as the first command information and sends it to the first handheld terminal 21 of the corresponding firefighter. The rescue measures may include whether the firefighter should leave the fire scene, how the firefighter can save himself, etc.

[0065] The command terminal 10 receives the location information, vital signs information, audio and video, fall information and pressure information of the rescuer sent by the second handheld terminal 22, determines the physical condition, location, use status of the ventilator, danger level of the fire scene, etc. of the rescuer, and first determines whether the physical condition of the rescuer is suitable for rescue activities. If not, the command terminal 10 sends the second command information of the rescuer to exit the fire scene to the second handheld terminal 22. If suitable, the information of the nearest firefighter and the rescue prompt to the firefighter are sent to the second handheld terminal 22 as the second command information according to the location information of the rescuer and the location information of the firefighter, so that the rescuer can rescue the firefighter nearby. Among them, the information of the firefighter can include the physical condition of the firefighter, the rescue prompt to the firefighter can include the location information of the firefighter, as well as the dispatch information and rescue resource allocation information of the rescuer, so that the rescuer can better coordinate the execution of rescue activities and improve the rescue efficiency and success rate.

[0066] Exemplarily, the command terminal 10 can also record information such as the rescue time and the number of rescued people, and analyze the rescue activities based on the above information and the acquired location information, vital signs information, audio and video, fall information and pressure information of the firefighters and rescuers, as well as the first command information and the second command information sent, and provide a basis for the future training and task planning of the firefighters based on the vital signs information and physical condition of the firefighters and rescuers, and analyze and evaluate the condition of the ventilator based on the pressure information.

[0067] The specific structure and functions of the handheld terminal and the command terminal in this embodiment can refer to the relevant description of the previous embodiment and will not be repeated here.

[0068] In this embodiment, multiple first handheld terminals and multiple second handheld terminals are set, the first handheld terminals correspond to firefighters, and the second handheld terminals correspond to search and rescue personnel. The command terminal receives the location information, vital signs information, audio and video, fall information and pressure information sent by the first handheld terminal and the second terminal respectively, and sends first command information including rescue measures to the first handheld terminal, and sends second command information including prompts for rescuing firefighters and information about firefighters to the second handheld terminal, so that firefighters can act according to the received rescue measures, and search and rescue personnel can quickly find firefighters according to the prompts for rescuing firefighters and information about firefighters, and rescue firefighters. Therefore, the use of the firefighter positioning tracking and vital signs monitoring system can reduce casualties of firefighters in fire fighting and improve the personal safety of firefighters. At the same time, it can improve the work efficiency and effectiveness of search and rescue personnel, and provide strong support for firefighting and rescue work.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A firefighter positioning tracking and vital signs monitoring system, characterized in that: include: A command terminal, a handheld terminal and a monitoring device, wherein the handheld terminal is respectively connected to the command terminal and the monitoring device for communication; the monitoring device includes a positioning device, a vital sign monitoring device, an audio and video device, a fall detection device and a ventilator air pressure monitoring device; The positioning device collects the position information of the firefighters, the vital signs monitoring device collects the vital signs information of the firefighters, the audio and video device collects the audio and video of the scene, the fall detection device collects the fall information of the firefighters, and the ventilator air pressure monitoring device collects the pressure information of the ventilator worn by the firefighters; The handheld terminal acquires the position information, the vital sign information, the audio and video, the fall information, and the pressure information, and sends the position information, the vital sign information, the audio and video, the fall information, and the pressure information to the command terminal; The command terminal receives the location information, the vital sign information, the audio and video, the fall information and the pressure information, and sends command information to the handheld terminal.

2. The firefighter location tracking and vital signs monitoring system according to claim 1, characterized in that: There are multiple handheld terminals, including a first handheld terminal and a second handheld terminal, wherein the first handheld terminal corresponds to a firefighter, and the second handheld terminal corresponds to a searcher; The command terminal receives the location information, vital sign information, audio and video, fall information and pressure information sent by the first handheld terminal, and receives the location information, vital sign information, audio and video, fall information and pressure information sent by the second handheld terminal; The command terminal sends a first command message to the first handheld terminal, and sends a second command message to the second handheld terminal; the first command message includes rescue measures, and the second command message includes a reminder to the firefighters for rescue and information about the firefighters.

3. The firefighter location tracking and vital signs monitoring system according to claim 1, characterized in that: It also includes: a display screen connected to the handheld terminal for communication; the display screen is detachably connected to the handheld terminal; The display screen displays the location information, the vital sign information, the audio and video, the fall information and the pressure information, and displays the command information.

4. The firefighter positioning tracking and vital signs monitoring system according to any one of claims 1 to 3, characterized in that: The vital signs monitoring device comprises: a heart rate collector and a temperature collection unit; The heart rate collector collects the heart rate information of the firefighters, and the temperature collection unit collects the body temperature information of the firefighters.

5. The firefighter positioning tracking and vital signs monitoring system according to any one of claims 1 to 3, characterized in that: The handheld terminal includes: a first communication device and a second communication device; The first communication device is communicatively connected with the positioning device, the vital sign monitoring device, the audio and video device, the fall detection device and the ventilator air pressure monitoring device; The second communication device is communicatively connected to the command terminal.

6. The firefighter positioning tracking and vital sign monitoring system according to any one of claims 1 to 3, characterized in that: The command terminal includes: a third communication device; The third communication device is communicatively connected with the handheld terminal.

7. The firefighter positioning tracking and vital signs monitoring system according to any one of claims 1 to 3, characterized in that: The handheld terminal comprises: a microphone and a speaker; the microphone and the speaker are respectively connected to the command terminal for communication.

8. The firefighter positioning tracking and vital signs monitoring system according to any one of claims 1 to 3, characterized in that: The positioning device, the vital sign monitoring device, the fall detection device and the ventilator air pressure monitoring device are arranged on the fire-fighting protective equipment worn by the firefighters.

9. The firefighter positioning tracking and vital signs monitoring system according to any one of claims 1 to 3, characterized in that: The audio and video device is arranged on the fire helmet worn by the firefighter.

10. The firefighter positioning tracking and vital sign monitoring system according to any one of claims 1 to 3, characterized in that: The handheld terminal comprises: a power supply device; the power supply device supplies power to the handheld terminal.

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