Air call pressure gauge with communication function

Abstract

The utility model discloses a kind of air call pressure gauges of fusion communication function, it includes watch case and watch body host computer, the watch body host computer includes the main control module and data acquisition unit for realizing air call pressure gauge function, also includes auxiliary control module;The data acquisition unit includes air pressure acquisition module, air pressure acquisition module is connected with main control module communication;The auxiliary control module is connected with main control module communication, auxiliary control module is connected with WIFI wireless 4G router CPE and bluetooth communication module, the bluetooth communication module is as output and is connected with fire mask communication, imaging device and WIFI communication module are formed in the fire mask;WIFI transmission end of WIFI wireless 4G router CPE is connected with the WIFI communication module communication, 4G transmission end is connected with 4G wireless base station communication.The utility model by integrating multiple communication technologies, so that equipment can flexibly cope with the communication demand under various complex environments, provides more comprehensive, accurate information support for fire personnel.

Description

Technical Field

[0001] This utility model belongs to the field of fire protection equipment technology, specifically relating to an air respirator pressure gauge with integrated communication function. Background Technology

[0002] Air respirators (referred to as breathing apparatus) are key equipment for ensuring the safety of firefighters in fire rescue scenarios. Their core function is to provide users with a clean breathing air source. The breathing apparatus pressure gauge, as an important component of breathing apparatus, is used to monitor the pressure status of the air cylinder in real time and is a basic monitoring device to ensure the safety of rescue operations.

[0003] Existing air pressure gauges for firefighting have limited functionality, only capable of collecting air pressure and temperature data. Their warning mechanisms rely solely on indicator lights or simple displays to indicate pressure and battery level, resulting in unintuitive information delivery and a simplistic warning system. Furthermore, existing breathing apparatus lacks systematic data integration capabilities, hindering the development of a complete product ecosystem. On one hand, it struggles to accommodate the real-time video data transmission needs of infrared and visible light detection devices; on the other hand, it cannot record the location information of firefighters, preventing fire stations from monitoring environmental parameters in real time and hindering precise rescue command and dispatch. In addition, traditional equipment suffers from significant shortcomings in portability and reliability, making it difficult to adapt to complex and ever-changing firefighting and rescue scenarios.

[0004] With the increasing demand for intelligent fire and rescue services, there is an urgent need to develop a new generation of air breathing pressure gauge that integrates multiple communication methods, positioning and tracking, and data visualization functions to break through the functional limitations of traditional equipment and improve the command efficiency and safety assurance level of fire and rescue services. Utility Model Content

[0005] The technical problem solved by this utility model is to provide an air respirator pressure gauge with integrated communication function. This device is designed to improve the functional defects of existing fire respirator pressure gauges and can be used to solve the defects in the above-mentioned technical background.

[0006] The technical problem solved by this utility model is achieved by the following technical solution: A breathing pressure gauge with integrated communication function includes a casing and a main unit encapsulated in the casing. The main unit includes a main control module for implementing the breathing pressure gauge function and a data acquisition unit, and also includes an auxiliary control module. The data acquisition unit includes a pressure acquisition module, which is connected to a pressure cylinder to monitor the pressure of the pressure cylinder in real time during use. The pressure acquisition module is also connected to the main control module. The auxiliary control module is communicatively connected to the main control module. The auxiliary control module is connected to a WIFI wireless 4G router CPE and a Bluetooth communication module. The Bluetooth communication module acts as a host and communicates with the fire-fighting mask, which acts as a slave. The fire-fighting mask contains an imaging device and a WIFI communication module. The WIFI transmission end of the WIFI wireless 4G router CPE is communicatively connected to the WIFI communication module, and the 4G transmission end is communicatively connected to the 4G wireless base station.

[0007] As a further limitation, the data acquisition unit also includes an acceleration acquisition module for detecting the wearer's body shape and / or a temperature acquisition module for detecting the ambient temperature; the acceleration acquisition module and the temperature acquisition module are communicatively connected to the main control module.

[0008] As a further limitation, the data acquisition unit also includes a power detection module for detecting the device's power level and a BeiDou positioning module for locating the device; the power detection module and the BeiDou positioning module are communicatively connected to the auxiliary control module.

[0009] As a further limitation, the main unit of the watch body is also equipped with a 433MHz wireless communication module for 433MHz wireless transmission communication.

[0010] As a further limitation, the imaging device itself is an infrared imaging device or has an infrared imaging module integrated inside.

[0011] As a further limitation, the watch case is made of engineering plastic molding and has a replaceable battery compartment structure.

[0012] As a further limitation, the watch case is also equipped with an audible and visual warning device and a status display device.

[0013] As a further limitation, the 4G wireless base station and the command center server establish a data transmission link via wired or wireless means to realize the real-time uploading and sharing of data collected by the breathing air pressure gauge.

[0014] Beneficial Effects: This utility model of an air-breathing pressure gauge integrating communication functions boasts significant advantages such as a complete product ecosystem, strong scalability, real-time data visualization, low power consumption design, excellent anti-interference performance, comprehensive functions, and superior environmental adaptability. Through the organic combination of 4G and WIFI functions, a real-time transmission network for sensor signals and imaging device images is constructed, enabling instant data visualization within the command system. The device employs a core main control module paired with auxiliary main control modules, establishing an efficient communication and control system, further enriching the product ecosystem, and supporting the expansion of more diversified products. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure module of the breathing pressure gauge according to a preferred embodiment of the present invention.

[0016] Figure 2 for Figure 1 A schematic diagram of the communication connection of the breathing air pressure gauge.

[0017] The components include: 1. Display module; 2. Auxiliary control module; 3. Main control module; 4. Bluetooth module; 5. Power detection module; 6. Beidou positioning module; 7. Backup Bluetooth module; 8. WIFI wireless 4G router CPE; 9. 433MHz wireless communication module; 10. Air pressure acquisition module; 11. Accelerometer acquisition module; 12. Temperature acquisition module; 13. Audible and visual warning module; 14. Status indication module; 15. Breathing apparatus pressure gauge; 16. Oxygen cylinder; 17. 4G wireless base station; 18. Command center server; 19. Fire mask. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0019] See Figure 1 , Figure 2 A preferred embodiment of an air-breathing pressure gauge with integrated communication functions is provided. In this embodiment, the air-breathing pressure gauge 15 includes a casing and a main unit encapsulated within the casing. The casing is integrally injection molded from high-strength engineering plastic, and its surface is treated with anti-scratch and wear-resistant materials, providing excellent impact resistance and adaptability to complex and harsh rescue environments. The main unit encapsulated within the casing includes a main control module 3 for implementing the air-breathing pressure gauge function, a data acquisition unit, and an auxiliary control module 2.

[0020] Its data acquisition unit includes a power detection module 5, a Beidou positioning module 6, an air pressure acquisition module 10, an acceleration acquisition module 11, and a temperature acquisition module 12. Among them, the power detection module 5 and the Beidou positioning module 6 are connected to the auxiliary control module 2 for real-time detection of equipment power and accurate positioning of the equipment, providing key information for rescue command.

[0021] The main control module 3 uses a CC1350F128RGZ low-power MCU, which features high performance and low power consumption, making it suitable for portable device applications. The main control module 3 connects to the acceleration acquisition module 11 via an SPI interface and to the auxiliary control module 2 via a UART interface. The auxiliary control module 2 acquires sensor data such as pressure and temperature from the main control module 3. The auxiliary control module 2 connects to the Bluetooth module 4, the Beidou positioning module 6, and the auxiliary Bluetooth module 7 via serial ports, and to the power detection module 5 via an I2C interface.

[0022] The air pressure acquisition module 10 includes an MPX5700 pressure sensor and a signal conditioning circuit. The pressure sensor is installed at the gas cylinder interface of the air respirator 15 to acquire the pressure signal inside the oxygen cylinder 16. The signal conditioning circuit includes an RC filter and an INA333 instrumentation amplifier to filter and amplify the weak signal output by the pressure sensor, remove high-frequency noise interference, and then send the processed analog signal to the ADC interface of the main control module 3. The air pressure acquisition module 10 is communicatively connected to the main control module 3 in the air respirator pressure gauge 15. When the air respirator pressure gauge 15 is used and connected to a pressure gas cylinder (oxygen cylinder 16 in this embodiment), it can detect the air pressure change of the oxygen cylinder 16 in real time and transmit the data to the main control module 3.

[0023] The acceleration acquisition module 11 is connected to the main control module 3 in the breathing air pressure gauge 15. It is used to detect the wearer's body state, such as movement state and posture, to provide data support for analyzing the actions of rescuers. It can also trigger an early warning mechanism in time when rescuers fall or experience other accidents, to ensure the safety of rescuers.

[0024] Temperature acquisition module 12 is also connected to main control module 3 and is responsible for real-time monitoring of ambient temperature to ensure that rescue personnel can work safely in various temperature environments.

[0025] In this embodiment, the auxiliary control module 2 establishes a communication connection with the main control module 3, and is externally connected to a WIFI wireless 4G router CPE 8 and a Bluetooth communication module 4. After collecting information, the data acquisition unit transmits it to the main control module 3 or the auxiliary control module 2 via a serial port; the data processed by the main control module 3 is transmitted to the auxiliary control module 2 for packet assembly, and then sent to the fire mask 19 end by the Bluetooth module 4 via serial port transparent transmission. The fire mask 19 end summarizes the video data and Bluetooth data acquired by the imaging device, and then realizes network transmission through the WIFI wireless 4G router CPE 8 built into the breathing air pressure gauge 15.

[0026] The device connects to a 4G wireless base station 17 via a WIFI to 4G protocol conversion function, and then uploads data to the server-side command center 18, enabling the command center to monitor key information such as oxygen cylinder pressure, rescue personnel location, ambient temperature, and on-site video in real time. This data is presented in a visual format on a large monitoring screen, providing comprehensive support for scientific command and decision-making.

[0027] The CPE 8, a 4G wireless router, establishes a connection with the built-in Wi-Fi communication module of the fire-fighting face mask 19 via its Wi-Fi transmission terminal, ensuring stable and high-speed transmission of video and Bluetooth data. It plays a crucial bridging role in the data link, acting as a protocol converter and ensuring transmission security. The CPE 8 consists of a 4G communication module and a Wi-Fi router. The 4G communication module uses the YOGE CLP600 full-network compatible module, supporting the LTE Cat 4 standard and covering all 4G frequency bands of the three major domestic operators, ensuring communication compatibility in different regions. The 4G communication module uses a SIM card slot to install an IoT card, generating a Wi-Fi hotspot for the infrared video detection device to connect to the command center platform for remote wireless communication.

[0028] When the WIFI 4G wireless router CPE 8 is turned on, it provides a transmission network for infrared video detection devices with WIFI capabilities, thereby enabling data visualization on the command platform. The data that the platform backend can collect is not limited to data transmitted by the Bluetooth module 4, such as pressure values, temperature, and location information; it can also expand to include data acquired by external products with Bluetooth or WIFI capabilities, thus enabling the product to achieve ecosystem integration.

[0029] In addition, a 433MHz wireless communication module 9 is specially installed in the main unit of the breathing apparatus. This module further enhances the communication capability of the breathing apparatus pressure gauge. The 433MHz wireless communication module 9 has the advantages of stable transmission, strong penetration, and good anti-interference, ensuring reliable data transmission in complex and ever-changing rescue environments. The wireless transmission module 9, in conjunction with the Bluetooth module 4, uses 433MHz wireless communication technology for short-range data transmission and equipment debugging. When the equipment is in normal working condition and the pressure is normal, it sends pressure data every 30 seconds via the Bluetooth module 4, which can transmit pressure data to the command center in real time. When a rapid drop in pressure is detected (e.g., a drop of more than 5MPa within 10 seconds), the emergency communication mode is triggered, sending data every 2 seconds and activating the audible and visual warning module 13.

[0030] In addition, to improve the ease of use of the equipment, the main unit housing of the breathing air pressure gauge 15 is also equipped with a display module 1, which also has an embedded sound and light warning module 13 and a status indicator module 14. The display module 1, the sound and light warning module 13, and the status indicator module 14 are all connected to the main control module 3. The display module 1 uses a high-definition LCD screen, which can display key data such as oxygen cylinder pressure, ambient temperature, equipment power, and Beidou positioning information in real time, providing rescuers with an intuitive and convenient way to view information.

[0031] The audible and visual warning module 13 provides timely warnings through both sound and light to indicate low battery power, abnormal air pressure, or accidents involving rescue personnel, ensuring the safe conduct of rescue operations. For example, in this embodiment, the sound and light warning module 13 includes a red LED indicator, a blue LED indicator, a yellow LED indicator, three white LED indicators, and a module consisting of a preprogrammable voice module, an external power amplifier, and a speaker.

[0032] The pressure head-up display device, located at end 19 of the fire-fighting mask, uses an LED display. When the cylinder pressure is between 10MPa and 30MPa, the green light is constantly on; when the cylinder pressure is between 6MPa and 10MPa, the yellow light is constantly on; when the cylinder pressure is below 6MPa, the red light flashes continuously; when the power supply to the pressure head-up display device is at a low voltage, the yellow light flashes continuously. When the transmitter and display device are paired, the blue light flashes continuously; after successful pairing, the blue light turns off.

[0033] When the cylinder pressure drops to (5.5±0.5) MPa, the alarm will sound either a continuous or intermittent audible alarm. The continuous audible alarm should last for at least 15 seconds at a sound intensity of 90 dB(A). The intermittent audible alarm should last for at least 60 seconds, with a peak sound intensity of at least 90 dB(A) and a frequency range of 2000 Hz to 4000 Hz. Afterward, the alarm will continue to sound until the cylinder pressure drops to 1 MPa. Simultaneously, a distress signal will be sent to the command center using a new type of infrared detection device.

[0034] The audible and visual warning module 13 can also be triggered by acceleration and gravity sensors. When a firefighter falls, a pre-alarm will be triggered, with the horn intermittently emitting a "beep beep beep" sound and the white warning light flashing every two seconds. If, after a fall, the acceleration and gravity values ​​do not change or do not reach the set fall alarm threshold, a long alarm state will be entered, meaning the horn will continuously emit a "beep beep beep" sound and the white warning light will flash every two seconds. The alarm can only be deactivated by manual intervention.

[0035] The status indicator module 14 uses different colored lights to indicate the working status of the equipment, such as normal operation, standby, and fault, so that rescue personnel can quickly understand the status of the equipment.

[0036] The auxiliary control module 2 is also equipped with a power detection module 5 and a backup Bluetooth module 7. Among them, the power detection module 5 can monitor the power status of the breathing apparatus pressure gauge 15 in real time, ensuring that the equipment will not be affected by insufficient power during long-term rescue operations.

[0037] The power management module includes two 18500 3.7V / 2000mAh lithium manganese batteries, a MAX17048 power monitoring chip, and an FH3016FDY power management chip. The power monitoring chip monitors the battery level in real time and transmits the data to the auxiliary control module 2.

[0038] In addition, to reduce device power consumption, a wake-up circuit is included in this embodiment. This circuit employs an RC filter and Schmitt trigger design, waking the system from sleep mode when an abnormal pressure or external wake-up signal is detected. The system's current draw in standby mode is less than 100μA. A rechargeable battery is used, effectively improving battery utilization. The combination of power monitoring and sleep / wake-up effectively reduces product power consumption. Furthermore, to ensure the battery life of the breathing apparatus pressure gauge 15, the casing is specially designed with a replaceable battery compartment structure, allowing rescue personnel to quickly replace the battery as needed, thereby extending the device's continuous operating time.

[0039] In this embodiment, the addition of the backup Bluetooth module 7 significantly improves communication redundancy. When the main Bluetooth communication module 4 fails, it can seamlessly switch to the backup module to ensure the continuity of data transmission.

[0040] The positioning module uses the ATGM336H Beidou positioning module, which can obtain the latitude and longitude information of the equipment in relatively open areas. After being worn by firefighters, it can be used in conjunction with a new type of infrared detection device to transmit the information to the command center, enabling the location tracking of firefighters. The positioning module updates its location information every 60 seconds when stationary and every 10 seconds when in motion.

[0041] This embodiment enables the face-mounted infrared thermal imaging device to both transmit data collected by the pressure gauge to the device itself and provide a wireless network for data fusion and transmission via the wireless network. This data fusion and wireless network transmission creates a product ecosystem, achieving the function of wirelessly transmitting fused data from multiple devices to the command platform. Specifically, it enables the transmission of real-time video from infrared and visible light detection devices via wireless communication, while the location, temperature, and gas cylinder pressure of firefighters (wearing the pressure gauge) are transmitted wirelessly via Bluetooth.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical content of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A breathing air pressure gauge integrating communication functions, characterized in that, The device includes a housing and a main unit encapsulated within the housing. The main unit includes a main control module for implementing the function of an air-breathing pressure gauge and a data acquisition unit, as well as an auxiliary control module. The data acquisition unit includes a pressure acquisition module, which is connected to a pressure cylinder to monitor the pressure of the pressure cylinder in real time during use. The pressure acquisition module is also connected to the main control module. The auxiliary control module is communicatively connected to the main control module. The auxiliary control module is connected to a WIFI wireless 4G router CPE and a Bluetooth communication module. The Bluetooth communication module serves as an output terminal and is communicatively connected to the fire-fighting mask. The fire-fighting mask contains an imaging device and a WIFI communication module. The WIFI transmission terminal of the WIFI wireless 4G router CPE is communicatively connected to the WIFI communication module, and the 4G transmission terminal is communicatively connected to the 4G wireless base station.

2. The breathing air pressure gauge with integrated communication function according to claim 1, characterized in that, The data acquisition unit also includes an acceleration acquisition module for detecting the wearer's body shape and / or a temperature acquisition module for detecting the ambient temperature; the acceleration acquisition module and the temperature acquisition module are communicatively connected to the main control module.

3. The breathing air pressure gauge with integrated communication function according to claim 1, characterized in that, The data acquisition unit also includes a power detection module for detecting the device's power level and a Beidou positioning module for locating the device; the power detection module and the Beidou positioning module are communicatively connected to the auxiliary control module.

4. The breathing air pressure gauge with integrated communication function according to claim 1, characterized in that, The main unit of the watch is also equipped with a 433MHz wireless communication module for 433MHz wireless transmission communication.

5. The breathing air pressure gauge with integrated communication function according to claim 1, characterized in that, The imaging device itself is an infrared imaging device or has an integrated infrared imaging module.

6. The breathing air pressure gauge with integrated communication function according to claim 1, characterized in that, The watch case is made of engineering plastic molding and has a replaceable battery compartment structure.

7. The breathing air pressure gauge with integrated communication function according to claim 1, characterized in that, The watch case is also equipped with an audible and visual warning device and a status display device.

8. The breathing air pressure gauge with integrated communication function according to claim 1, characterized in that, The 4G wireless base station and the command center server establish a data transmission link via wired or wireless means to enable real-time uploading and sharing of data collected by the breathing apparatus pressure gauge.

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