CN111420319A - Positive pressure protection hood intelligent monitoring system based on Bluetooth transmission - Google Patents

Positive pressure protection hood intelligent monitoring system based on Bluetooth transmission Download PDF

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Publication number
CN111420319A
CN111420319A CN202010251370.8A CN202010251370A CN111420319A CN 111420319 A CN111420319 A CN 111420319A CN 202010251370 A CN202010251370 A CN 202010251370A CN 111420319 A CN111420319 A CN 111420319A
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CN
China
Prior art keywords
air
return
quick
bluetooth transmission
port
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Pending
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CN202010251370.8A
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Chinese (zh)
Inventor
张自强
张学伟
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Beijing Aerospace Xinfeng Machinery Equipment Co Ltd
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Beijing Aerospace Xinfeng Machinery Equipment Co Ltd
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Priority to CN202010251370.8A priority Critical patent/CN111420319A/en
Publication of CN111420319A publication Critical patent/CN111420319A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/006Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort with pumps for forced ventilation
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00Filters for breathing-protection purposes
    • A62B23/02Filters for breathing-protection purposes for respirators
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Abstract

A positive pressure protection hood intelligent monitoring system based on Bluetooth transmission comprises an air filtering device (3) and a return air supply pipeline (4), wherein the air filtering device (3) is connected with the return air supply pipeline (4); the air filter is characterized by further comprising a sensor unit (1) and a Bluetooth transmission module (2), wherein the sensor unit (1) is connected with the Bluetooth transmission module (2), and the Bluetooth transmission module (2) is connected with the air filter device (3); the invention has simple structure, ingenious design, convenient use and wide application.

Description

Positive pressure protection hood intelligent monitoring system based on Bluetooth transmission
Technical Field
The invention relates to an intelligent monitoring system for a positive pressure protective hood, in particular to an intelligent monitoring system for a positive pressure protective hood based on Bluetooth transmission.
Background
The protective hood can effectively prevent fine particles such as germs, dust particles and the like in the external environment from entering mucous membrane parts such as eyes, mouths and noses, so that the protective hood can effectively protect a wearer and plays an important role in the fields of medical treatment and health, infectious disease prevention and control, spraying operation and the like. In recent years, people constantly improve the requirement on the comfort of protective equipment, and the positive pressure protective hood filters the outside air and sends the clean air into the relatively airtight protective hood according to the set pressure and flow under the action of the fan, so that the protective hood forms a micro-positive pressure environment, and the breathing comfort of a wearer is improved.
Along with the development of science and technology, people constantly improve to the requirement of intelligent wearable equipment, and traditional malleation protection hood function singleness, the integrated level of manual regulation blast flow are low, have can not satisfy the requirement of the person of wearing to intelligent protective equipment.
Disclosure of Invention
The invention aims to provide an intelligent monitoring system of a positive pressure protective hood based on Bluetooth transmission, which can automatically maintain the interior of the hood to be comfortable.
A positive pressure protection hood intelligent monitoring system based on Bluetooth transmission comprises an air filtering device 3 and a return air pipeline 4, wherein the air filtering device 3 is connected with the return air pipeline 4; the air filter is characterized by further comprising a sensor unit 1 and a Bluetooth transmission module 2, wherein the sensor unit 1 is connected with the Bluetooth transmission module 2, and the Bluetooth transmission module 2 is connected with the air filter 3;
the sensor unit 1 comprises a composite sensor 5 and a first lithium ion battery 6, wherein the composite sensor 5 is connected with the first lithium ion battery 6; the composite sensor 5 further comprises an environment collector 7, a communication port 8 and a power supply port 9, the environment collector 7 is respectively connected with the communication port 8 and the power supply port 9, the lithium ion battery I6 comprises a charging port 10, an energy storage combination 11 and a discharging port 12, the charging port 10 is connected with the energy storage combination 11, and the energy storage combination 11 is connected with the discharging port 12; a discharge port 12 of the lithium ion battery I6 is electrically connected with a power supply port 9 of the composite sensor 5;
the Bluetooth transmission module 2 comprises a power port 13, a processor 14, a transmitter 15 and a receiver 16, wherein the power port 13 is electrically connected with the processor 14, and the power port 13 supplies power to the processor 14; the processor 14 is electrically connected with the transmitter 15, the processor 14 inputs the processed environmental parameters into the transmitter 15, and the transmitter 15 is wirelessly connected with the receiver 16 in a Bluetooth transmission mode to wirelessly transmit and receive the environmental parameters;
the air filtering device 3 comprises a controller 17, a filter element 18, a fan 19, a pipeline interface 20 and a lithium ion battery II 21, wherein the pipeline interface 20 comprises an air supply interface 22 and an air return interface 23, the fan 19 comprises a centrifugal fan 24 and an axial flow fan 25, the filter element 18 comprises an air supply filter element 26 and an air return filter element 27, and the air supply filter element 26 and the air supply interface 22 are sequentially arranged through the centrifugal fan 24 to form an air supply cavity; the return air filter element 27, the axial flow fan 25 and the return air interface 23 are sequentially connected to form a return air cavity; the second lithium ion battery 21 is electrically connected with the controller 17 and a power supply pin of the fan 19 to supply power to the controller 17 and the fan 19; a PWM pin of the controller 17 is electrically connected with a speed regulation pin of the fan 19 to control the rotating speed;
the air returning pipeline 4 comprises an air supply air pipe 28, an air return air pipe 29, a quick-connection plug A30, a quick-connection plug B31, a quick-connection plug C32 and a quick-connection plug D33, wherein the quick-connection plug A30 is in airtight threaded connection with the input end of the air supply air pipe 28, and the quick-connection plug B31 is in airtight threaded connection with the output end of the air supply air pipe 28; the quick-connection plug C32 is connected with the input end of the return air pipe 29 in an airtight way, and the quick-connection plug D33 is connected with the output end of the return air pipe 29 in an airtight way.
The quick-connecting plug C32 is in airtight threaded connection with the input end of the return air pipe 29, and the quick-connecting plug D33 is in airtight threaded connection with the output end of the return air pipe 29.
The air supply interface 22 and the air return interface 23 of the pipeline interface 20 in the air filtering device 3 are respectively connected with a quick-connection plug A30 and a quick-connection plug C32 in the return air pipeline 4 through airtight hoses.
The invention has the advantages that the sensor unit collects the composite environmental parameters in the protective hood in real time, the Bluetooth transmission module wirelessly transmits and receives the parameters, the composite environmental parameters in the protective hood are analyzed in the air filtering device, the rotating speeds of the centrifugal fan and the axial flow fan are controlled, the pressure and the flow of the air supply and the air return of clean air inside and outside the protective hood are adjusted, and the intelligent operation and the autonomous feedback control of the positive pressure protective hood are realized. The sensor collects the temperature and humidity pressure composite environment parameters in the protective hood in real time, transmits and decodes the parameters through Bluetooth, and controls the rotating speed of the air supply fan and the air return fan in a feedback manner, so that the pressure and the flow of the air supply fan and the air return fan of the protective hood are adjusted.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic block diagram of the structure of the present invention;
FIG. 3 is a flow chart of the working process of the present invention;
FIG. 4 is a schematic diagram of a sensor unit according to the present invention;
FIG. 5 is a schematic diagram of a Bluetooth transmission module according to the present invention;
FIG. 6 is a schematic view of an air filtration device according to the present invention;
fig. 7 is a schematic view of the structure of the return air duct of the present invention.
The device comprises a sensor unit 1, a Bluetooth transmission module 2, an air filtering device 3, a composite sensor 4 for a wind returning pipeline 5, a lithium ion battery I6, an environment collector 7, a communication port 8, a power supply port 9, a charging port 10, an energy storage combination 11, a discharge port 12, a power port 13, a processor 14, a transmitter 15, a receiver 16, a controller 17, a filter element 18, a fan 19, a pipeline interface 20, a lithium ion battery II 21, an air supply interface 22, an air return interface 23, a centrifugal fan 24, an axial flow fan 25, an air supply filter element 26, an air return filter element 27, an air supply pipe 28, an air return pipe 29, a quick-connection plug A30, a quick-connection plug B31, a quick-connection plug C32 and a quick-connection plug D33.
Detailed Description
A positive pressure protection hood intelligent monitoring system based on Bluetooth transmission comprises an air filtering device 3 and a return air pipeline 4, wherein the air filtering device 3 is connected with the return air pipeline 4; the air filter is characterized by further comprising a sensor unit 1 and a Bluetooth transmission module 2, wherein the sensor unit 1 is connected with the Bluetooth transmission module 2, and the Bluetooth transmission module 2 is connected with the air filter 3;
the sensor unit 1 comprises a composite sensor 5 and a first lithium ion battery 6, wherein the composite sensor 5 is connected with the first lithium ion battery 6; the composite sensor 5 further comprises an environment collector 7, a communication port 8 and a power supply port 9, the environment collector 7 is respectively connected with the communication port 8 and the power supply port 9, the lithium ion battery I6 comprises a charging port 10, an energy storage combination 11 and a discharging port 12, the charging port 10 is connected with the energy storage combination 11, and the energy storage combination 11 is connected with the discharging port 12; a discharge port 12 of the lithium ion battery I6 is electrically connected with a power supply port 9 of the composite sensor 5;
the Bluetooth transmission module 2 comprises a power port 13, a processor 14, a transmitter 15 and a receiver 16, wherein the power port 13 is electrically connected with the processor 14, and the power port 13 supplies power to the processor 14; the processor 14 is electrically connected with the transmitter 15, the processor 14 inputs the processed environmental parameters into the transmitter 15, and the transmitter 15 is wirelessly connected with the receiver 16 in a Bluetooth transmission mode to wirelessly transmit and receive the environmental parameters;
the air filtering device 3 comprises a controller 17, a filter element 18, a fan 19, a pipeline interface 20 and a lithium ion battery II 21, wherein the pipeline interface 20 comprises an air supply interface 22 and an air return interface 23, the fan 19 comprises a centrifugal fan 24 and an axial flow fan 25, the filter element 18 comprises an air supply filter element 26 and an air return filter element 27, and the air supply filter element 26 and the air supply interface 22 are sequentially arranged through the centrifugal fan 24 to form an air supply cavity; the return air filter element 27, the axial flow fan 25 and the return air interface 23 are sequentially connected to form a return air cavity; the second lithium ion battery 21 is electrically connected with the controller 17 and a power supply pin of the fan 19 to supply power to the controller 17 and the fan 19; a PWM pin of the controller 17 is electrically connected with a speed regulation pin of the fan 19 to control the rotating speed;
the air returning pipeline 4 comprises an air supply air pipe 28, an air return air pipe 29, a quick-connection plug A30, a quick-connection plug B31, a quick-connection plug C32 and a quick-connection plug D33, wherein the quick-connection plug A30 is in airtight threaded connection with the input end of the air supply air pipe 28, and the quick-connection plug B31 is in airtight threaded connection with the output end of the air supply air pipe 28; the quick-connection plug C32 is connected with the input end of the return air pipe 29 in an airtight way, and the quick-connection plug D33 is connected with the output end of the return air pipe 29 in an airtight way.
The quick-connecting plug C32 is in airtight threaded connection with the input end of the return air pipe 29, and the quick-connecting plug D33 is in airtight threaded connection with the output end of the return air pipe 29.
The air supply interface 22 and the air return interface 23 of the pipeline interface 20 in the air filtering device 3 are respectively connected with a quick-connection plug A30 and a quick-connection plug C32 in the return air pipeline 4 through airtight hoses.
A positive pressure protection hood intelligent monitoring system based on Bluetooth transmission includes: sensor unit, bluetooth transmission module, air filter, return air line send.
The sensor unit includes: the composite sensor comprises an environment collector, a communication port and a power supply port, and the first lithium ion battery comprises a charging port, an energy storage combination and a discharging port. And the environment collector in the composite sensor is electrically connected with the communication port. And a charging port in the first lithium ion battery is electrically connected with a discharging port through the energy storage assembly. And a discharge port of the first lithium ion battery is electrically connected with a power supply port of the composite sensor.
The bluetooth transmission module includes: power port, treater, transmitter, receiver. The power supply port is electrically connected with the processor and supplies power to the processor. The processor is electrically connected with the transmitter and inputs the processed environmental parameters into the transmitter. The transmitter and the receiver are in wireless connection in a Bluetooth transmission mode, and the environment parameters are sent and received wirelessly.
The air filter device includes: the lithium ion battery air conditioner comprises a controller, a filter element, a fan, a pipeline interface and a lithium ion battery II, wherein the pipeline interface comprises an air supply interface and an air return interface, the fan comprises a centrifugal fan and an axial flow fan, and the filter element comprises an air supply filter element and an air return filter element. The air supply filter elements are sequentially distributed with the air supply interface through the centrifugal fan to form an air supply cavity; the return air filter element is arranged with the return air interface in sequence through the axial flow fan to form a return air cavity. And the lithium ion battery II is electrically connected with the controller and a power supply pin of the fan and supplies power to the controller and the fan. And a PWM pin of the controller is electrically connected with a speed regulation pin of the fan to control the rotating speed of the fan.
The return air duct includes: the quick-connection plug is in airtight threaded connection with the input end and the output end of the air supply pipe, and the quick-connection plug is in airtight threaded connection with the input end and the output end of the air return pipe.
The air filter device is in airtight flexible connection with the air return pipeline, and an air supply interface and an air return interface of a pipeline interface in the air filter device are respectively in airtight flexible connection with the quick-connection plug in the air return pipeline.
The sensor unit is electrically connected with the air filtering device through the Bluetooth transmission module. The communication port of the composite sensor in the sensor unit is electrically connected with the processor of the Bluetooth transmission module, and the discharge port of the lithium ion battery I in the sensor unit is electrically connected with the power port of the Bluetooth transmission module. The receiver of the Bluetooth transmission module is electrically connected with the controller of the air filtering device.
The utility model provides a malleation protection hood intelligence monitored control system during operation based on bluetooth transmission, at first with send the quick-connect plug of air supply pipe, return air pipe one end in the return air pipeline respectively with the air supply interface of pipeline interface among the air filter equipment, the airtight flexible coupling of return air interface, again with the quick-connect plug and the protection hood dustcoat airtight connection of air supply pipe, the return air pipe other end. And turning on a power switch, and starting a fan in the air filtering device. Under the action of a centrifugal fan in the air filtering device, ambient air is filtered by an air supply filter element and then is sent into the protective hood through an air supply pipe in an air supply and return pipeline by an air supply interface, and clean air is input; under the effect of axial fan, the person's exhaust gas passes through the return air pipe in the protection hood and filters the indoor clean air that discharges behind the return air filter core by the return air interface, avoids cross infection. The composite sensor in the sensor unit collects the composite environmental parameters in the protective hood and sends the parameters to the processor of the Bluetooth transmission module through the communication port for conversion and cache, and the converted parameters are wirelessly transmitted to the controller of the air filtering device through the transmitter and the receiver of the Bluetooth transmission module. The controller compares the received pressure parameters with a preset algorithm, outputs PWM (pulse-width modulation) speed regulation pulses to control the rotating speed of the centrifugal fan and the axial flow fan, automatically regulates the pressure and the flow of air supply and return of the protective hood, and realizes a comfortable micro-positive pressure environment in the protective hood in an autonomous feedback control mode.
A positive pressure protection hood intelligent monitoring system based on Bluetooth transmission includes: sensor unit 1, bluetooth transmission module 2, air filter 3, send back wind pipeline 4.
The sensor unit 1 includes: the composite sensor comprises a composite sensor 5 and a first lithium ion battery 6, wherein the composite sensor 5 comprises an environment collector 7, a communication port 8 and a power supply port 9, and the first lithium ion battery 6 comprises a charging port 10, an energy storage assembly 11 and a discharging port 12. The environment collector 7 in the composite sensor 5 is electrically connected with the communication port 8. The charging port 10 of the first lithium ion battery 6 is electrically connected with the discharging port 12 through the energy storage assembly 11. And the discharge port 12 of the first lithium ion battery 6 is electrically connected with the power supply port 9 of the composite sensor 5.
The bluetooth transmission module 2 includes: power port 13, processor 14, transmitter 15, receiver 16. The power port 13 is electrically connected to the processor 14 for supplying power to the processor. The processor 14 is electrically connected to the transmitter 15 and inputs the processed environmental parameter into the transmitter 15. The transmitter 15 and the receiver 16 are connected wirelessly by means of bluetooth transmission, and transmit and receive the environment parameters wirelessly.
The air filter device 3 includes: the lithium ion battery comprises a controller 17, a filter element 18, a fan 19, a pipeline interface 20 and a lithium ion battery II 21, wherein the pipeline interface 20 comprises an air supply interface 22 and an air return interface 23, the fan 19 comprises a centrifugal fan 24 and an axial flow fan 25, and the filter element 18 comprises an air supply filter element 26 and an air return filter element 27. The air supply filter core 26 is arranged with the air supply interface 22 in sequence through the centrifugal fan 24 to form an air supply cavity; the return air filter element 27 is arranged in sequence with the return air interface 23 through the axial flow fan 25 to form a return air cavity. The second lithium ion battery 21 is electrically connected with the controller 17 and the power supply pins of the fan 19 to supply power to the controller 17 and the fan. The PWM pin of the controller 17 is electrically connected to the speed regulation pin of the fan 19 to control the rotation speed.
The return air duct 4 includes: the air supply pipe 28, the return air pipe 29 and the quick-connection plug 30, wherein the quick-connection plug 30 is in airtight threaded connection with the input end and the output end of the air supply pipe 28, and the quick-connection plug 30 is in airtight threaded connection with the input end and the output end of the return air pipe 29.
The air filtering device 3 is in airtight flexible connection with the air return pipeline 4, and the air supply interface 22 and the air return interface 23 of the pipeline interface 20 in the air filtering device 3 are respectively in airtight flexible connection with the quick-connection plug 30 in the air return pipeline 4.
The sensor unit 1 is electrically connected with the air filter device 3 via the bluetooth transmission module 2. The communication port 8 of the composite sensor 5 in the sensor unit 1 is electrically connected with the processor 14 of the Bluetooth transmission module 2, and the discharge port 9 of the lithium ion battery I6 in the sensor unit 1 is electrically connected with the power supply port 13 of the Bluetooth transmission module 2. The receiver 16 of the bluetooth transmission module 2 is electrically connected to the controller 17 of the air filter device 3.
Specifically, when the positive pressure protection hood intelligent monitoring system based on bluetooth transmission works, the step S100 is executed firstly, the quick-connecting plugs 30 at one ends of the air supply pipe 28 and the air return pipe 29 in the air supply and return pipeline 4 are respectively in airtight soft connection with the air supply interface 22 and the air return interface 23 of the pipeline interface 20 in the air filtering device 3, and then the quick-connecting plugs 30 at the other ends of the air supply pipe 28 and the air return pipe 29 are in airtight soft connection with the protection hood outer cover. Then, the step S200 is started, the power switch is turned on, and the blower 19 in the air filter device 3 is started. In the step S201, under the action of the centrifugal fan 24 in the air filtering device 3, ambient air is filtered by the air supply filter core 26, then is sent into the protective head cover through the air supply interface 22 via the air supply air pipe 28 in the air return pipeline 4, and clean air is input; in step S202, under the action of the axial flow fan 25, the air discharged by the wearer in the protective head cover is filtered by the return air connector 23 through the return air tube 29 and the return air filter 27, and then the clean air is discharged indoors, so as to avoid cross infection. And S300, acquiring the composite environment parameters inside the protective hood by the composite sensor 5 in the sensor unit 1, transmitting the parameters to the processor 14 of the Bluetooth transmission module 2 through the communication port 8 for conversion and cache, and wirelessly transmitting the converted parameters to the controller 17 of the air filtering device 3 through the transmitter 15 and the receiver 16 of the Bluetooth transmission module 2. And finally, S400, the controller 17 compares the received parameters with a preset algorithm, outputs PWM (pulse-Width modulation) speed regulation pulses to control the rotating speed of the centrifugal fan 24 and the axial flow fan 25, automatically regulates the pressure and the flow of air supply and return of the protective hood, and realizes a comfortable micro-positive pressure environment in the protective hood in an autonomous feedback control mode.
The present invention can be used as an intelligent monitoring system of positive pressure protective head cover based on bluetooth transmission, which provides enough functional modules, and the user can modify the sensor unit and the air filtering device according to the specific application field, and all the modifications or replacements are within the protection scope of the appended claims.

Claims (3)

1. A positive pressure protection hood intelligent monitoring system based on Bluetooth transmission comprises an air filtering device (3) and a return air supply pipeline (4), wherein the air filtering device (3) is connected with the return air supply pipeline (4); the air filter is characterized by further comprising a sensor unit (1) and a Bluetooth transmission module (2), wherein the sensor unit (1) is connected with the Bluetooth transmission module (2), and the Bluetooth transmission module (2) is connected with the air filter device (3);
the sensor unit (1) comprises a composite sensor (5) and a lithium ion battery I (6), wherein the composite sensor (5) is connected with the lithium ion battery I (6), the composite sensor (5) further comprises an environment collector (7), a communication port (8) and a power supply port (9), the environment collector (7) is respectively connected with the communication port (8) and the power supply port (9), the lithium ion battery I (6) comprises a charging port (10), an energy storage combination (11) and a discharging port (12), the charging port (1)0 is connected with the energy storage combination (11), the energy storage combination (11) is connected with the discharging port (12), and the discharging port (12) of the lithium ion battery I (6) is electrically connected with the power supply port (9) of the composite sensor (5);
the Bluetooth transmission module (2) comprises a power port (13), a processor (14), a transmitter (15) and a receiver (16), wherein the power port (13) is electrically connected with the processor (14), the power port (13 is used for electrically supplying power to the processor (14), the processor (14) is electrically connected with the transmitter (15), the processor (14) inputs the processed environmental parameters into the transmitter (15), and the transmitter (15 is wirelessly connected with the receiver 1 (6) in a Bluetooth transmission mode to wirelessly transmit and receive the environmental parameters;
the air filtering device 3 comprises a controller (17), a filter element (18), a fan (19), a pipeline interface (20), a lithium ion battery II (21), wherein the pipeline interface (20) comprises an air supply interface (22) and an air return interface (23), the fan (19) comprises a centrifugal fan (24) and an axial flow fan (25), the filter element (18) comprises an air supply filter element (26) and an air return filter element (27), the air supply filter element (26) is sequentially arranged with the air supply interface (22) through the centrifugal fan (24) to form an air supply cavity, the air return filter element (27), the axial flow fan (25) and the air return interface (23) are sequentially connected to form an air return cavity, the lithium ion battery II (21) is electrically connected with power supply pins of the controller (17) and the fan (19) to supply power for the lithium ion battery II, a PWM pin of the controller (17) is electrically connected with a speed regulation pin of the fan;
the air supply and return pipeline (4) comprises an air supply pipe (28), an air return pipe (29), a quick-connection plug A (30), a quick-connection plug B (31), a quick-connection plug C (32) and a quick-connection plug D (33), wherein the quick-connection plug A (30) is in airtight threaded connection with the input end of the air supply pipe (28), and the quick-connection plug B (31) is in airtight threaded connection with the output end of the air supply pipe (28); the quick-connecting plug C (32) is connected with the input end of the return air pipe (29) in an airtight mode, and the quick-connecting plug D (33) is connected with the output end of the return air pipe (29) in an airtight mode.
2. The positive pressure protection hood intelligent monitoring system based on Bluetooth transmission as claimed in claim 1, wherein the airtight connection between the quick connector C (32) and the input end of the return air pipe (29) is airtight threaded connection, and the airtight connection between the quick connector D (33) and the output end of the return air pipe (29) is airtight threaded connection.
3. The positive pressure protection hood intelligent monitoring system based on Bluetooth transmission as claimed in claim 1, wherein the air supply interface (22) and the return air interface (23) of the pipeline interface (20) in the air filtering device (3) are respectively connected with the quick-connection plug A (30) and the quick-connection plug C (32) in the return air pipeline 4 through airtight hoses.
CN202010251370.8A 2020-04-01 2020-04-01 Positive pressure protection hood intelligent monitoring system based on Bluetooth transmission Pending CN111420319A (en)

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CN108096726A (en) * 2018-01-24 2018-06-01 江苏海事职业技术学院 More people share filtering type long tube air-supply respirator in a kind of travelling
CN212395643U (en) * 2020-04-01 2021-01-26 北京航天新风机械设备有限责任公司 Positive pressure protection hood intelligent monitoring system based on Bluetooth transmission

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