CN-121987980-A - Intelligent dustproof half mask based on flexible sensing multi-information early warning system and early warning method

CN121987980ACN 121987980 ACN121987980 ACN 121987980ACN-121987980-A

Abstract

The invention discloses an intelligent dustproof half mask based on a flexible sensing multi-information early warning system and an early warning method, and relates to the technical field of industrial individual protection. The mask comprises a mask main body, a filtering module and an intelligent monitoring and early warning system. The mask body is provided with a flexible PCB board laminating area on the inner side and a battery groove on the outer side. The monitoring and early warning system is integrated on the flexible PCB and comprises temperature and humidity, dust and pressure sensors for monitoring the environment, dust concentration and respiratory state of the respiratory cavity in real time, and the micro-processing unit analyzes data and gives corresponding warning through the outer early warning module. The power module supplies power to the whole system. The system realizes multidimensional intelligent monitoring and active early warning of the wearing environment. The invention can support the monitoring and early warning of the state of the multi-source information.

Inventors

WEI XIAOBIN
LI ANRAN
WANG HETANG
WANG PU
YANG TONGSHU

Assignees

中国矿业大学

Dates

Publication Date: 20260508
Application Date: 20260206

Claims (8)

1. Intelligent dustproof half face guard based on flexible sensing multi-information early warning system, its characterized in that includes: The mask comprises a mask body, a mask body and a mask cover, wherein the mask body is made of a flexible material and is provided with an inner side which is matched with the outline of the face of a user to form an inner breathing cavity and an outer side which is exposed to the external environment, wherein the inner side is provided with an elastic sealing edge for being jointed with the face to form the breathing cavity, and is provided with a flexible PCB board jointing area; the filter module is detachably connected to the interface at the outer side of the mask main body and comprises filter cotton for filtering particles in air and a sealing ring arranged between the filter cotton and the interface; Intelligent monitoring early warning system includes: The flexible PCB is fixedly connected with the flexible PCB attaching area on the inner side of the mask main body; The sensing module is arranged on the flexible PCB and comprises a temperature and humidity sensor for monitoring the temperature and humidity inside the mask, a miniature dust sensor for monitoring the dust concentration inside the mask and a pressure sensor for monitoring the breathing state, wherein the pressure sensor is in fluid communication with the breathing cavity through a through hole formed in the flexible PCB; the micro-processing unit is arranged on the flexible PCB and is used for receiving and processing the signal data acquired by the sensing module; The early warning module is arranged at the outer side of the mask, is electrically connected with the micro-processing unit on the flexible PCB, and is used for carrying out early warning judgment according to the signal data and executing corresponding early warning operation according to the judgment result; The power module comprises a power management unit arranged on the flexible PCB and a battery storage unit connected with the power management unit through a flexible wire and is used for supplying power to the intelligent monitoring and early warning system.
2. The intelligent dustproof half mask based on the flexible sensing multi-information early warning system according to claim 1, wherein the early warning module comprises a visual prompter and a tactile prompter, and the visual prompter and the tactile prompter are used for generating a cooperative prompting mode according to different early warning levels.
3. The intelligent dustproof half mask based on the flexible sensing multi-information early warning system according to claim 1, wherein the sensing module, the micro-processing unit and the early warning module form a star topology electrical connection structure through a shared serial communication bus.
4. The intelligent dustproof half mask based on the flexible sensing multi-information early warning system according to claim 1, wherein a mask hanging belt is further arranged on the mask main body and used for fixing the mask main body on the face of a user.
5. The intelligent dustproof half mask based on the flexible sensing multi-information early warning system according to claim 1, wherein a Type-C charging port is further arranged on the battery storage unit and used for charging a battery in the battery storage unit.
6. The intelligent dustproof half mask based on the flexible sensing multi-information early warning system according to claim 1, wherein a miniature through hole is formed in the flexible PCB and opposite to a pressure sensing port of the pressure sensor, and the diameter of the miniature through hole is 0.3 mm-0.8 mm.
7. An early warning method applied to the intelligent dustproof half mask as claimed in any one of claims 1 to 6, comprising: The method comprises the steps of collecting signal data in the mask in real time through a sensor integrated on a flexible PCB, wherein the signal data comprise a temperature and humidity signal, a respiratory pressure signal and a dust concentration signal; filtering the respiratory pressure signal, extracting respiratory frequency, determining positive and negative pressure peak values, and determining respiratory resistance trend within set time based on the positive and negative pressure peak values; smoothing the dust concentration signal, establishing and maintaining a dynamic base line, and determining a concentration change trend; based on the respiratory resistance trend, the concentration change trend and the temperature and humidity signals, carrying out multiparameter fusion logic judgment, determining an early warning level according to a judgment result and triggering a corresponding early warning instruction; And controlling the visual prompter and the touch prompter to execute corresponding early warning operation according to the early warning instruction.
8. The method of claim 7, wherein the filtering process uses digital high-pass filtering with passband frequencies of 0.1Hz to 2.0Hz to filter out ambient noise and extract respiratory dynamic signals.

Description

Intelligent dustproof half mask based on flexible sensing multi-information early warning system and early warning method Technical Field The invention relates to the technical field of industrial individual protection, in particular to an intelligent dustproof half mask based on a flexible sensing multi-information early warning system and an early warning method. Background A large amount of dust is usually generated in industrial production activities, such as industries of coal mines, building material processing and the like, and high-risk occupational diseases such as pneumoconiosis and the like are easily caused by long-term inhalation of high-concentration dust by operators. Individual protection is the most effective measure to reduce dust inhalation exposure, wherein, dustproof half face guard can effectively filter dust particle, and the leakproofness is high, long service life, is the respiratory protection apparatus of industry pollution place common. The traditional dustproof half mask mainly belongs to passive self-priming filtering protection, is easy to lose efficacy and difficult to detect in the long-time use process, and meanwhile, heat accumulation in the mask can cause poor thermal environment to influence wearing comfort of workers. At present, the defect of the dustproof mask is difficult to remedy due to the lack of monitoring research on the internal environment of the protective appliance in the field of individual protection, wherein the compatible design of the rigid sensor module and the textile material and the fusion early warning method of multi-source monitoring information are main difficulties. Disclosure of Invention The invention aims to provide an intelligent dustproof half mask based on a flexible sensing multi-information early warning system and an early warning method, and aims to solve or improve at least one of the technical problems. In order to achieve the above object, the present invention provides the following solutions: An intelligent dustproof half mask based on a flexible sensing multi-information early warning system, comprising: The mask comprises a mask body, a mask body and a mask cover, wherein the mask body is made of a flexible material and is provided with an inner side which is matched with the outline of the face of a user to form an inner breathing cavity and an outer side which is exposed to the external environment, wherein the inner side is provided with an elastic sealing edge for being jointed with the face to form the breathing cavity, and is provided with a flexible PCB board jointing area; the filter module is detachably connected to the interface at the outer side of the mask main body and comprises filter cotton for filtering particles in air and a sealing ring arranged between the filter cotton and the interface; Intelligent monitoring early warning system includes: The flexible PCB is fixedly connected with the flexible PCB attaching area on the inner side of the mask main body; The sensing module is arranged on the flexible PCB and comprises a temperature and humidity sensor for monitoring the temperature and humidity inside the mask, a miniature dust sensor for monitoring the dust concentration inside the mask and a pressure sensor for monitoring the breathing state, wherein the pressure sensor is in fluid communication with the breathing cavity through a through hole formed in the flexible PCB; the micro-processing unit is arranged on the flexible PCB and is used for receiving and processing the signal data acquired by the sensing module; The early warning module is arranged at the outer side of the mask, is electrically connected with the micro-processing unit, and is used for carrying out early warning judgment according to the signal data and executing corresponding early warning operation according to the judgment result; The power module comprises a power management unit arranged on the flexible PCB and a battery storage unit connected with the power management unit through a flexible wire and is used for supplying power to the intelligent monitoring and early warning system. Optionally, the early warning module comprises a visual prompter and a tactile prompter, wherein the visual prompter and the tactile prompter are used for generating a cooperative prompting mode according to different early warning levels. Optionally, the sensing module, the micro-processing unit and the early warning module form a star topology electrical connection structure through a shared serial communication bus. Optionally, a mask hanging strap is further provided on the mask body, for fixing the mask body to the face of the user. Optionally, the battery storage unit is further provided with a Type-C charging port, which is used for charging the battery in the battery storage unit. Optionally, a miniature through hole is formed in the flexible PCB and opposite to the pressure sensing port of the pressure sensor, and the diameter of the miniature