A head-up display device for an air respirator mask and its usage method

Abstract

This invention relates to the field of air respirator masks, specifically a head-up display device for an air respirator mask. The device includes a mask and is characterized by a display unit. A fixing clip is located in the center of the display unit, and battery compartments and limiting brackets are located on the left and right sides of the display unit. The limiting brackets and fixing clips mount the display unit inside the lower front part of the mask. A display screen is located on the top of the display unit. The display unit also includes a video acquisition unit, an optical module, an imaging module, a gas detection module, a sensor unit, a wireless Bluetooth module, a radio frequency module, a wireless WIFI module, a 4G module, and a power management circuit. It can detect the gas pressure, toxic and harmful gases, and temperature of the surrounding environment through the signal acquisition device, and simultaneously convert the information into electrical signals via Bluetooth or WIFI and transmit them to the display unit. Unlike traditional air respirator masks that require viewing corresponding parameters at various locations, this device is more convenient and safer.

Description

Technical Field

[0001] This invention relates to the field of air respirator face mask technology, specifically to an air respirator face mask head-up display device and its usage method. Background Technology

[0002] Currently, with technological advancements, rescue personnel are equipped with increasingly sophisticated self-contained breathing apparatus (SCBAs), including electronic alarms and pressure displays, distress signals, communication devices, gas detectors, heart rate wristbands, and infrared thermal imagers. During rescue operations, rescue personnel need to constantly monitor information such as air pressure, battery level, gas concentration, ambient temperature, and personnel location on their equipment. However, this information is displayed on different functional units, which distracts the wearer's attention. This is especially true when wearing heavy protective suits, making it impossible to observe the status of their equipment and the surrounding environment, seriously jeopardizing the rescue personnel's safety.

[0003] Therefore, it is desirable to obtain a display device that centralizes all the aforementioned information parameters within a face mask. This device, installed inside the face mask, can monitor and display in real time the air pressure, battery level, ambient temperature, type and concentration of toxic gases, heart rate and location, and warning and alarm signals of the worn air respirator without requiring turning or bending the head or any manual operation. All monitoring information can be clearly displayed inside the face mask, freeing up the hands of rescuers and allowing them to fully concentrate on rescue operations. Simultaneously, the information displayed can be transmitted to the on-site rescue command center via a 4G network. The command center can also continuously monitor the disaster environment, the vital signs of rescuers, and the status of their respirators, issuing timely evacuation or distress calls, improving rescue efficiency, and ensuring the safety of rescuers. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an air respirator mask head-up display device that collects information through an external information acquisition device and transmits it to an internal display device.

[0005] To achieve the above objectives, a head-up display device for an air respirator mask is designed, comprising a mask, characterized by including a display device with a fixing clip in the middle, battery compartments and limiting brackets on the left and right sides of the display device, the limiting brackets and fixing clips mounting the display device inside the lower front part of the mask, a display screen on the top of the display device, and internally including a video acquisition unit, an optical module, an imaging module, a gas detection module, a sensor unit, a wireless Bluetooth module, a radio frequency module, a wireless WIFI module, a 4G module, and a power management circuit; and a signal acquisition device, internally including a video acquisition unit, an optoelectronic module, a gas detection module, a sensor unit, a wireless Bluetooth module, a wireless WIFI module, and a power management circuit, the signal acquisition device transmitting data with the display device via WIFI or Bluetooth, and a fixed mounting base on one side of the signal acquisition device, the fixed mounting base being fixedly connected to the outside of the mask.

[0006] It also includes a gas supply device, which contains a gas cylinder with two high-pressure hoses. One high-pressure hose is connected to the alarm whistle, and the other high-pressure hose is connected to the gas pipe.

[0007] The mask has an air supply valve at the front, which is connected to a high-pressure pipe via an air tube.

[0008] A pressure transmitter is installed at the bottom of the gas supply device, and a back frame is installed at the back of the gas supply device.

[0009] The signal acquisition device has a power button and a mode button on the top, and a camera window at the front.

[0010] The steps for using the head-up display device on an air respirator mask are as follows:

[0011] A. Press and hold the power button on the signal acquisition device to turn it on. The display device will be automatically activated after powering on.

[0012] B. The display device initially displays in monitoring mode. In monitoring mode, it simultaneously monitors air pressure, remaining breathing time, relative altitude, ambient temperature, battery power, toxic gas, and heart rate. An alarm is triggered when any of these items exceeds the set value.

[0013] C. Press and hold the mode button on the signal acquisition device to switch between monitoring mode, infrared thermal imaging mode, toxic gas detection mode and search and rescue mode;

[0014] C-1. In infrared thermal imaging mode, it monitors ambient temperature, battery level and signal strength, and triggers an alarm when the ambient temperature exceeds the limit value.

[0015] C-2. In toxic gas detection mode, the concentration of toxic and harmful gases in the environment, battery power, and signal strength are detected. When the concentration of toxic and harmful gases in the environment exceeds the limit value, an alarm is triggered.

[0016] C-3. Search and rescue modes are divided into active search and rescue and passive search and rescue. Active search and rescue displays the direction, distance, signal strength, altitude and priority of teammates. Passive search and rescue displays the distress signals sent by teammates.

[0017] D. Transmit information from monitoring mode, infrared thermal imaging mode, toxic gas detection mode, and search and rescue mode to the back-end command platform wirelessly.

[0018] Compared with the prior art, the advantages of this invention are:

[0019] 1. It can detect the gas pressure, toxic and harmful gases and temperature of the surrounding environment through the signal acquisition device, and at the same time convert the information into electrical signals and transmit them to the display device via Bluetooth or WIFI. Unlike traditional air respirator masks that require viewing corresponding parameters at various locations, it is more convenient and safer.

[0020] 2. It has teammate search and rescue and alarm functions, and can display the teammate's specific location on the display screen of the display device;

[0021] 3. All information displayed on the display device can be transmitted to the rear command center via the network, enabling remote monitoring, sending evacuation orders, data storage, and other functions. Attached Figure Description

[0022] Figure 1 This is a flowchart illustrating the working principle of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the signal acquisition device of the present invention;

[0025] Figure 4 This is a schematic diagram of the display device structure of the present invention;

[0026] In the diagram: 1. Power button 2. Mode button 3. Camera window 4. Power indicator light 5. Toxic gas sensor 6. Gas hose 8. Strobe light 9. Mounting bracket 10. Battery compartment cover 11. Emergency alarm button 12. Display screen 13. Pipeline sensor 14. Battery compartment 15. Limit bracket 16. Fixture 17. Face mask 18. Gas supply valve 19. Gas cylinder 20. Back frame 21. High-pressure hose 22. Alarm whistle 23. Pressure transmitter 24. Display device 25. Signal acquisition device Detailed Implementation

[0027] The invention will now be further described with reference to the accompanying drawings. The structure and principle of this device are very clear to those skilled in the art. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0028] Example 1: See Figure 1 The working principle is as follows:

[0029] The signal acquisition device is fastened to the mask frame with screws; the display device is installed inside the lower front part of the mask via a bracket and clips.

[0030] Infrared thermal imaging display: After the system is started, the external equipment starts working. The optical module in the display device collects the infrared spectrum, converts the light signal into an electrical signal, and transmits it to the display device inside the mask via WIFI signal. Finally, the image is displayed on the screen (infrared thermal imaging). The image can capture the highest temperature value in the image in real time to detect potential dangerous fire sources in a timely manner.

[0031] Toxic gas detection and alarm: The gas detection module in the display device converts toxic and harmful gases into electrical signals, which are then transmitted to the HUD inside the mask via Bluetooth. If the level of toxic or harmful gases exceeds the limit, an alarm message will be displayed on the screen. When the level of toxic gas exceeds the set value, the icon will flash and the concentration of the toxic gas will be displayed.

[0032] Cylinder pressure display and alarm: The cylinder pressure is transmitted via Bluetooth to a display device inside the mask, displayed digitally in real time in MPa. The monitoring range for cylinder pressure is 0-30 MPa. It can also intelligently convert the remaining usage minutes based on the firefighter's breathing volume for a more intuitive view. The pressure is divided into three stages: high, low, and alarm. A green light indicates high pressure (10-30 MPa); a yellow light indicates low pressure (6-10 MPa); and an alarm indicates a flashing red light and vibration to help firefighters evacuate the scene if their air pressure is insufficient (1-6 MPa).

[0033] Teammate Search and Rescue Function: The RF module in the display device is primarily used to measure distance for locating teammates. This module requires two or more devices to operate. When one device sends a distress alarm signal, the alarm signal is output through the RF module. When another device receives the signal from the RF module, it receives the distress alarm signal, converts it into an electrical signal, and transmits it via Bluetooth to the display device inside the mask. The screen automatically switches to the distress interface, displaying the relative distance and location between you and your teammates in distress. The location information of the person in distress will be highlighted with a flashing red icon. Search for teammates based on their location. The screen also displays how many people are currently searching. If you choose not to search, you can cancel the search and return to the normal monitoring interface.

[0034] The fire mask signal acquisition device integrates multiple sensors, converting temperature, atmospheric pressure, and light signals into electrical signals, which are then transmitted via Bluetooth to the display device inside the mask. The final display shows the temperature and altitude values, along with an automatic brightness adjustment function. The temperature setting allows for upper and lower alarm limits; the altitude display shows the floor level of the firefighter; and the light sensor automatically adjusts the brightness according to the ambient light level to prevent visual fatigue.

[0035] It can also receive the Bluetooth signal from the heart rate bracelet and display it on the screen of the display device. When the heart rate is abnormal, the icon will flash to indicate this.

[0036] All the above-mentioned display information and monitoring data can be wirelessly transmitted to the rear command center to realize functions such as remote monitoring, sending evacuation orders, and data storage.

[0037] Example 2, see Figure 3

[0038] The external structure of the signal acquisition device is as follows: A power button and a mode button are located on the top. The power button is used to turn the power on and off, and the mode button is used to switch modes. A camera window is located at the front of the device for observing objects in front. Below the camera window is a power indicator light to indicate whether the power is on. Below the power indicator light is a toxic gas sensor to detect toxic and harmful gases. A strobe light is located at the lower front of the device for alarm purposes. A battery compartment cover is located at the bottom of the device; opening the cover allows for battery insertion. A distress alarm button is located on the side of the device for one-button alarm activation.

[0039] Example 3: See Figures 2-4 The specific work steps are as follows:

[0040] 1. Press and hold the "Power" button on the signal acquisition device for 3 seconds to turn it on. The power indicator light will illuminate. After powering on, the display device will be automatically activated. Wait for the system to run for 10 seconds before entering the display desktop.

[0041] 2. Upon power-on, the default display mode is monitoring mode, which can simultaneously monitor the breathing pressure, remaining breathing time, relative altitude, ambient temperature, battery level, heart rate, toxic gas detection, and fall alarm. An alarm will be triggered if any of the monitored items exceeds the set value. During an alarm, the image will be magnified, and the screen will flash the alarm point at a frequency of 1 time per second until the alarm is cleared.

[0042] 3. Press and hold the “Mode” button on the traffic limit data collection device for more than 1 second to switch between monitoring mode, infrared thermal imaging mode, toxic gas detection mode, and search and rescue mode.

[0043] 3-1 Infrared thermal imaging mode:

[0044] Press and hold the "Mode" button on the signal acquisition device for more than 1 second to switch to infrared thermal imaging mode. In this mode, you can monitor the ambient temperature (highest temperature value), battery level, and signal strength in real time. A short press of the "Power" button will start video recording, and another short press will cancel it. When the ambient temperature exceeds the upper limit, an alarm will be triggered immediately, and the screen will flash once per second to indicate the alarm point.

[0045] 3-2 Poison Gas Detection Mode:

[0046] Press and hold the "Mode" button on the signal acquisition device for more than 1 second to switch to toxic gas detection mode. In this mode, the concentration of toxic and harmful gases, battery level, and signal strength in the environment can be monitored in real time. When the gas concentration exceeds the upper limit, an alarm will be triggered, and the screen will flash once per second to indicate the alarm point. (The toxic gas sensor can be replaced as needed.)

[0047] 3-3 Search and Rescue Mode:

[0048] This mode is divided into active and passive search and rescue. Active search and rescue allows you to locate and search for trapped teammates. If not in search and rescue mode, when a teammate sends a distress signal, an "SOS" message will appear on the screen, displaying the trapped person's number, the alarm details, and whether to grant permission to search by briefly pressing the "SOS" button or the "Power" button. In search and rescue mode, the following information will be displayed: teammate's direction, distance, signal strength, alarm details, altitude, search and rescue personnel, and priority.

[0049] 4. Rear-field monitoring and command platform:

[0050] The monitoring, infrared thermal imaging, toxic gas detection, and search and rescue modes can all transmit information wirelessly (4G) to the command platform for real-time monitoring of firefighters' gas cylinder pressure, remaining operating time, ambient temperature, relative altitude, gas concentration, heart rate, battery level, combat time, personnel location, operational mode, SOS alarm, and fall alarm. It can also issue individual, group, or full evacuation commands to frontline personnel, and the monitoring data can be stored and viewed.

Claims

1. A method of using a head-up display device for an air-breathing mask, characterized in that: The air-breathing mask head-up display device includes a mask and also includes... A display device is provided, with a fixing clip in the middle of the display device, battery compartments and limiting brackets on the left and right sides of the display device, the limiting brackets and fixing brackets are used to install the display device in the lower front part inside the mask, a display screen is provided on the top of the display device, and the display device is also provided with a video acquisition unit, an optical module, an imaging module, a gas detection module, a sensor unit, a wireless Bluetooth module, a radio frequency module, a wireless WIFI module, a 4G module and a power management circuit. A signal acquisition device, which includes a video acquisition unit, a photoelectric module, a gas detection module, a sensor unit, a wireless Bluetooth module, a wireless WIFI module, and a power management circuit. The signal acquisition device transmits data to the display device via WIFI or Bluetooth. A fixed mounting base is provided on one side of the signal acquisition device, and the fixed mounting base is fixedly connected to the outside of the mask. The signal acquisition device is equipped with a power button and a mode button on the top, and a camera window at the front of the signal acquisition device. The radio frequency module in the display device is used to measure distance to locate teammates. When one device sends out a distress alarm signal, the alarm signal is output through the radio frequency module. When another device receives the signal from the radio frequency module, it receives the distress alarm signal and converts it into an electrical signal, which is then transmitted to the display device inside the mask via Bluetooth. The display screen automatically switches to a distress interface, which shows the relative distance and location to the teammate in distress. The location information of the person in distress is indicated by a bright red flashing icon. The signal acquisition device integrates multiple sensors, converting temperature, atmospheric pressure, and photosensitive signals into electrical signals, which are then transmitted to the display device via Bluetooth. The display shows the temperature and altitude values, with the altitude value indicating the floor level where the firefighter is located. The photosensitive sensor automatically adjusts the brightness according to the ambient light. The signal acquisition device receives the Bluetooth signal from the rescuer's heart rate wristband and displays it on the display screen of the display device, and the icon flashes to indicate when the heart rate is abnormal; The steps are as follows: A. Press and hold the power button on the signal acquisition device to turn it on. The display device will be automatically activated after powering on. B. The display device initially displays in monitoring mode. In monitoring mode, it simultaneously monitors air pressure, remaining breathing time, relative altitude, ambient temperature, battery power, toxic gas, and heart rate. An alarm is triggered when any of these items exceeds the set value. C. Press and hold the mode button on the signal acquisition device to switch between monitoring mode, infrared thermal imaging mode, toxic gas detection mode and search and rescue mode; C-1. In infrared thermal imaging mode, it monitors ambient temperature, battery level and signal strength, and triggers an alarm when the ambient temperature exceeds the limit value. C-2. In toxic gas detection mode, the concentration of toxic and harmful gases in the environment, battery power, and signal strength are detected. When the concentration of toxic and harmful gases in the environment exceeds the limit value, an alarm is triggered. C-3. Search and rescue modes are divided into active search and rescue and passive search and rescue. Active search and rescue displays the direction, distance, signal strength, altitude and priority of teammates. Passive search and rescue displays the distress signals sent by teammates. D. Transmit information from monitoring mode, infrared thermal imaging mode, toxic gas detection mode, and search and rescue mode to the back-end command platform wirelessly.

2. The method of using the head-up display device for an air-breathing mask as described in claim 1, characterized in that: The head-up display device of the air breathing mask also includes a gas supply device, which contains a gas cylinder with two high-pressure pipes. One high-pressure pipe is connected to the alarm whistle, and the other high-pressure pipe is connected to the air pipe.

3. The method of using the head-up display device for an air-breathing mask as described in claim 1, characterized in that: The mask is equipped with an air supply valve at the front, which is connected to a high-pressure pipe via an air pipe.

4. The method of using the head-up display device for an air-breathing mask as described in claim 2, characterized in that: The gas supply device is equipped with a pressure transmitter at the bottom and a back frame at the back.

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