CN211631926U - 5G communication intelligent mining safety helmet - Google Patents
5G communication intelligent mining safety helmet Download PDFInfo
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- CN211631926U CN211631926U CN202020167709.1U CN202020167709U CN211631926U CN 211631926 U CN211631926 U CN 211631926U CN 202020167709 U CN202020167709 U CN 202020167709U CN 211631926 U CN211631926 U CN 211631926U
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Abstract
The utility model relates to a safety protection field, concretely relates to mining safety helmet of 5G communication intelligence. The mining safety helmet comprises a mining safety helmet body, an LED illuminating lamp and a camera which are arranged on the front portion of the mining safety helmet body, a loudspeaker and a microphone which are arranged in the middle of the mining safety helmet body, a mounting box which is arranged on the rear portion of the mining safety helmet body, a circuit board which is fixed inside the mounting box, and an environment monitoring unit, a 5G communication unit, a local storage, a function indicating lamp, a storage battery, a function button and a local controller which are integrated on the circuit board. The underground working environment can be monitored in real time, an alarm is given to environmental abnormity in time, the management and control platform is informed, further indication is issued by management and control, life safety of the mining safety helmet is guaranteed from the source, and the 5G communication technology has the advantages of high data rate, low delay, low energy consumption, high system capacity and easiness in large-scale equipment connection.
Description
Technical Field
The utility model relates to a safety protection field, more specifically the utility model relates to a mining safety helmet of 5G communication intelligence.
Background
China is a country with abundant coal resources and a country relatively dependent on coal resources, and in the energy industry of China, coal accounts for 76% and 69% of the total amount of primary energy production and consumption respectively. Under the condition of rapid increase of coal yield, the coal mine also has multiple serious accidents. Therefore, strengthening the safe production management of the coal mine is the primary task of guaranteeing the sustainable, stable and healthy development of the coal industry in China, has important significance for the development of national economy, and is not only related to the growth and the decline of coal mine enterprises, but also related to the stability of society and the long-term development of economy.
Because the mining safety helmet is an indispensable protective tool during the operation of the mining safety helmet, the intelligent module integrated on the mining safety helmet is favorable for promoting informatization and intellectualization of production in the coal mine industry, and the intelligent module plays an important role in ensuring safety production of mines and life safety of the mining safety helmet and is also an important guarantee for high yield and high efficiency of coal.
Existing bluetooth technology, UWB (ultra wide band) technology, ZigBee (wireless sensor) technology, and the like. These techniques all belong to radio frequency wireless communication, and have the disadvantages of unstable signals, single function, difficult installation, high power consumption and the like. The latest 5G communication technology has the advantages of high data rate, low delay, low energy consumption, high system capacity and easiness in large-scale equipment connection, and is suitable for being applied to intelligent mining safety helmets.
Disclosure of Invention
The utility model aims to solve the current intelligent safety helmet signal unstability, the function singleness, the high scheduling problem of energy consumption to improve the intelligent level of coal mine production, provide a mining safety helmet of 5G communication intelligence.
The utility model discloses a realize like this: the utility model provides a mining safety helmet of 5G communication intelligence which characterized in that: the mining safety helmet comprises a mining safety helmet body, an LED illuminating lamp and a camera which are arranged on the front portion of the mining safety helmet body, a loudspeaker and a microphone which are arranged in the middle of the mining safety helmet body, a mounting box which is arranged on the rear portion of the mining safety helmet body, a circuit board which is fixed inside the mounting box, and an environment monitoring unit, a 5G communication unit, a local storage, a function indicating lamp, a storage battery and a function button which are integrated on the circuit board. The front part of the mining safety helmet body is provided with a clamping groove for fixing the LED lighting, the clamping groove for fixing the LED lighting lamp is positioned on the outer side of the mining safety helmet body, and a wire hole is formed in the clamping groove for fixing the LED lighting lamp and used for allowing a wire to pass through; the front part of the mining safety helmet body is provided with a mounting hole for mounting a camera, and the mounting hole is arranged below a clamping groove for fixing an LED illuminating lamp; the middle part of the left side of the mining safety cap body is provided with a foldable microphone, the microphone is connected with the mining safety cap body through a rotating shaft, and a wire hole is formed in the connecting part of the mining safety cap body and the rotating shaft and used for a wire to pass through; the middle part of the right side of the mining safety helmet body is provided with a clamping groove for fixing a loudspeaker, the clamping groove for fixing the loudspeaker is positioned at the inner side of the mining safety helmet body, and the mining safety helmet body is provided with a honeycomb-shaped small hole for transmitting sound at the position of the clamping groove for fixing the loudspeaker; the rear part of the mine safety cap body is provided with a clamping groove for fixing the mounting box, the clamping groove for fixing the mounting box is positioned on the outer side of the mine safety cap body, and a wire hole is formed in the clamping groove for fixing the mounting box and used for allowing a wire to pass through; the inner side of the mining safety cap body is provided with a wire groove for arranging and fixing wires, and the wire groove is connected with each mounting hole and each wire hole.
The mounting box inside have the draw-in groove of fixed circuit board, the mounting box is opened at one side that is fixed in the mining safety cap body has the wire guide with the wire guide assorted on the mining safety cap body, the mounting box is opened at one side of keeping away from the mining safety cap body has the mounting hole with function button size assorted, the mounting box right side is opened has power source and is connected with external battery, install the function pilot lamp on the outer page of a whole of the body of mounting box.
The local controller is packaged on the circuit board and consists of an MCU module and a driving circuit, the local controller is connected with the environment monitoring unit, the 5G communication unit, the local memory, the function indicating lamp, the storage battery and the function button through an integrated circuit on the circuit board, and the local controller is connected with the LED illuminating lamp, the microphone and the loudspeaker through a wire circuit. The storage battery and the switch button of the control switch are connected with a ground controller circuit through wires, the local controller is connected with the camera, the loudspeaker, the microphone, the environment monitoring unit, the 5G communication unit, the local memory and the function button circuit and is used for driving and controlling the units, the local controller can respectively control the LED illuminating lamp, the camera and the environment sensor and display different function indicating lamps when the function button is pressed for different times, and a power circuit of each function unit of the 5G communication intelligent mining safety helmet is formed.
The 5G communication unit, the 5G communication unit includes 5G communication module and position location module, 5G communication unit and local controller circuit connection carry out the information interaction, the receiving and dispatching of its signal is controlled by local controller, 5G communication unit passes through wireless signal real-time communication through 5G network and long-range 5G monitoring platform, carry out the information interaction with long-range 5G monitoring platform according to local controller instruction 5G communication unit, 5G communication unit still includes the position location module, when 5G communication unit lies in long-range monitoring platform and carries out the information interaction, the position location module acquires the positional information at safety helmet place and passes through 5G signal transmission to long-range 5G monitoring platform.
The environment monitoring unit comprises: the temperature sensor, the humidity transducer, gas content sensor, oxygen content sensor, above-mentioned each sensor all with local controller circuit connection and carry out information interaction, local controller acquires temperature sensor's ambient temperature respectively, humidity transducer's ambient humidity, gas content sensor's ambient gas content and oxygen content sensor's ambient oxygen content, and store these environmental index data in local memory, local controller carries out the operation comparison simultaneously, if surpass the alarm value that local controller set for, then local controller sets out alarm signal, the police sends through the speaker soon, arouse staff's safety of paying attention to, this alarm information also sends to long-range 5G surveillance center and reports an emergency and asks for help or increased vigilance through 5G communication unit simultaneously.
The microphone comprises a microphone, an elastic rod and a rotating shaft, the rotating shaft can be installed on the mining safety helmet body, the two ends of the elastic rod are connected with the microphone and the rotating shaft, and the rotating shaft and the microphone are both hollow, so that a wire can penetrate through the rotating shaft and the microphone.
The loudspeaker is a moving-coil loudspeaker with the diameter of 30-40 mm.
The utility model discloses a show the effect:
1. the 5G communication intelligent mining safety helmet adopts 5G communication and has the advantages of high data rate, low delay, low energy consumption, high system capacity and easiness in large-scale equipment connection.
2. The environment monitoring unit of the 5G communication intelligent mining safety helmet monitors the underground working environment in real time, gives an alarm for environmental abnormality in time, informs a control platform, and further indicates the monitoring and control platform through a control release, so that the life safety of the mining safety helmet is guaranteed from the source;
3. the mining safety helmet is used as a necessary protective tool for underground operation of the mining safety helmet, the 5G communication intelligent mining safety helmet can provide necessary protection and illumination functions, and also can provide voice communication and image shooting and recording functions, so that the informatization and intellectualization levels of coal mine production are improved, and the problems encountered during production of the mining safety helmet are conveniently solved;
4. the 5G communication intelligent mining safety helmet can enable the trapped mining safety helmet to quickly establish contact with the outside or even keep contact with the outside all the time when an accident occurs, and is beneficial to self rescue and outside rescue of the trapped mining safety helmet.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings:
FIG. 1 is a schematic block diagram of a circuit structure of a 5G communication intelligent mining safety helmet of the utility model;
fig. 2 is a schematic front view structure diagram of the 5G communication intelligent mining safety helmet of the present invention;
fig. 3 is a schematic view of the rear view structure of the 5G communication intelligent mining safety helmet of the present invention;
fig. 4 is a left side view structure diagram of the 5G communication intelligent mining safety helmet of the present invention;
fig. 5 is a schematic diagram of a right-view structure of the 5G communication intelligent mining safety helmet of the present invention;
fig. 6 is a schematic structural view of a local controller of the 5G communication intelligent mining safety helmet of the present invention;
the symbols in the drawings illustrate that: 1. the mining safety helmet comprises a mining safety helmet body, 2, an LED illuminating lamp, 3, a camera, 4, a loudspeaker, 5, a microphone, 14 and an installation box.
Detailed Description
Embodiments of the present invention will be described in detail with reference to fig. 1 to 6. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1-6, a mining safety helmet of 5G communication intelligence, its characterized in that: the mining safety helmet comprises a mining safety helmet body 1, an LED illuminating lamp 2 and a camera 3 which are arranged on the front portion of the mining safety helmet body 1, a loudspeaker 4 and a microphone 5 which are arranged in the middle of the mining safety helmet body, a mounting box 14 which is arranged on the rear portion of the mining safety helmet body, a circuit board which is fixed in the mounting box 14, and an environment monitoring unit, a 5G communication unit, a local storage, a function indicating lamp, a storage battery and a function button which are integrated on the circuit board. The front part of the mining safety cap body 1 is provided with a clamping groove for fixing the LED lighting lamp 2, the clamping groove for fixing the LED lighting lamp 2 is positioned at the outer side of the mining safety cap body 1, and a wire hole is formed in the clamping groove for fixing the LED lighting lamp 2 and used for allowing a wire to pass through; the front part of the mining safety helmet body 1 is provided with a mounting hole for mounting the camera 3, and the mounting hole is arranged below a clamping groove for fixing the LED illuminating lamp 2; a foldable microphone 5 is arranged in the middle of the left side of the mining safety cap body 1, the microphone 5 is connected with the mining safety cap body 1 through a rotating shaft, and a wire hole is formed in the connecting position of the mining safety cap body 1 and the rotating shaft and used for a wire to pass through; a clamping groove for fixing the loudspeaker 4 is formed in the middle of the right side of the mining safety cap body 1, the clamping groove for fixing the loudspeaker 4 is located on the inner side of the mining safety cap body 1, and a honeycomb-shaped small hole is formed in the clamping groove for fixing the loudspeaker 4 of the mining safety cap body 1 and used for sound transmission; a clamping groove for fixing the mounting box 14 is formed in the rear portion of the mining safety cap body 1, the clamping groove for fixing the mounting box 14 is located on the outer side of the mining safety cap body 1, and a wire hole is formed in the clamping groove for fixing the mounting box 14 and used for allowing a wire to pass through; the inner side of the mining safety cap body 1 is provided with a wire groove for arranging and fixing wires, and the wire groove is connected with each mounting hole and each wire hole.
The mining safety helmet is characterized in that a clamping groove for fixing a circuit board is formed in the mounting box 14, a wire hole matched with a wire hole in the mining safety helmet body 1 is formed in one side, fixed to the mining safety helmet body 1, of the mounting box 14, a mounting hole matched with a functional button in size is formed in one side, far away from the mining safety helmet body 1, of the mounting box 14, a power supply interface is formed in the right side of the mounting box and connected with an external storage battery, and a functional indicator lamp is mounted on the outer layout of the mounting box.
The local controller is packaged on the circuit board and consists of an MCU module and a driving circuit, the local controller is connected with the environment monitoring unit, the 5G communication unit, the local memory, the function indicating lamp, the storage battery and the function button through an integrated circuit on the circuit board, and the local controller is connected with the LED illuminating lamp 2, the microphone 5 and the loudspeaker 4 through a lead circuit. The storage battery and a switch button of the control switch are connected with a ground controller circuit through wires, the local controller is connected with the camera 3, the loudspeaker 4, the microphone 5, the environment monitoring unit, the 5G communication unit, the local memory and the function button circuit and drives and controls the units, the local controller can respectively control the LED illuminating lamp 2, the camera 3 and the environment sensor and display different function indicating lamps when the function button is pressed for different times, and a power circuit of each function unit of the 5G communication intelligent mining safety helmet is formed.
The 5G communication unit, the 5G communication unit includes 5G communication module and position location module, 5G communication unit and local controller circuit connection carry out the information interaction, the receiving and dispatching of its signal is controlled by local controller, 5G communication unit passes through wireless signal real-time communication through 5G network and long-range 5G monitoring platform, carry out the information interaction with long-range 5G monitoring platform according to local controller instruction 5G communication unit, 5G communication unit still includes the position location module, when 5G communication unit lies in long-range monitoring platform and carries out the information interaction, the position location module acquires the positional information at safety helmet place and passes through 5G signal transmission to long-range 5G monitoring platform.
The environment monitoring unit comprises: the temperature sensor, the humidity transducer, gas content sensor, oxygen content sensor, above-mentioned each sensor all with local controller circuit connection and carry out information interaction, local controller acquires temperature sensor's ambient temperature respectively, humidity transducer's ambient humidity, gas content sensor's ambient gas content and oxygen content sensor's ambient oxygen content, and store these environmental index data in local memory, local controller carries out the operation comparison simultaneously, if surpass the alarm value that local controller set for, then local controller sets out alarm signal, the police sends through the speaker soon, arouse staff's safety of paying attention to, this alarm information also sends to long-range 5G surveillance center and reports an emergency and asks for help or increased vigilance through 5G communication unit simultaneously.
The microphone 5 comprises a microphone, an elastic rod and a rotating shaft, the rotating shaft can be installed on the mining safety helmet body, the microphone and the rotating shaft are connected to the two ends of the elastic rod, the rotating shaft and the microphone are both hollow, and a wire can penetrate through the rotating shaft and the microphone.
The loudspeaker 4 is a moving-coil loudspeaker with the diameter of 30-40 mm.
Examples
Firstly, an external storage battery is connected into a power supply access port of a mining safety helmet body 1, a 'switch' button of a function button is pressed, the storage battery supplies power for a local controller, the local controller starts to work, the local controller is STM32F103RET6, the chip module is based on an ARM high-density performance line 32-bit MCU, and is provided with 265-bit and 512-bit flash memory, USB, CAN,11 timers, 3 ADCs and 13 communication interfaces, and the technical requirement for locally controlling the chip module CAN be met; the local controller acquires the electric quantity information of the storage battery and detects the electric quantity stored in the storage battery, if the electric quantity is not less than 20%, the function indicator lamp is controlled to be on green, and if the electric quantity is less than 20%, the function indicator lamp is controlled to be on red; the local controller is connected with the environment monitoring unit, the local memory and the 5G communication unit, wherein a 5G communication module of the 5G communication unit adopts a 5G module ZM9000 produced by Zhongxing communication corporation to realize the data service which is firstly opened based on a high-pass latest 5G platform SDX55 (Cellcon X555G modem) under a 5G NSA/SA network. This marks that the Zhongxing communication 5G module has realized 5G end-to-end communication and can support both NSA and SA networks. The Zhongxing 5G module ZM9000 covers the 4G/5G frequency bands of three domestic operators, adopts M.2 packaging technology, is plug-and-play in standard size (30 x 52 x 3.6mm), and can be quickly adapted to various industry complete machine products including security cameras, 5G 8K televisions, high-definition conference terminals and the like. The theoretical rate of the uplink double current is up to 662Mbps, the highest downlink 3.8Gbps, and meanwhile, the ZM9000 has the characteristics of ultralow standby power consumption, rich interfaces and the like. When the local controller detects that the 5G communication unit is connected to the 5G micro base station annunciator in the mine, the local controller calls the voice data of 'successful communication connection' in the local memory and sends the data to the loudspeaker 4 to enable the loudspeaker 4 to play the voice information, and when the local controller detects that the 5G communication unit is disconnected from the 5G micro base station annunciator in the mine, the local controller calls the voice data of 'disconnection of communication connection' in the local memory and sends the data to the loudspeaker 4 to enable the loudspeaker 4 to play the voice information; the 'illumination' button of the function button is pressed, the local controller supplies power to the LED illuminating lamp 2, the LED illuminating lamp adopts 3535 type LED lamp beads of 12V10W, the lighting effect is not lower than 100lm per watt, and the LED illuminating lamp 2 works; the 'video' button of the function button is pressed, the storage battery supplies power for the camera, the camera adopts an ultra-high micro camera produced by Dahua technology corporation, a high-performance two-million-pixel 1/3-inch CMOS image sensor is adopted, the low illumination effect is good, the image definition is high, 200 ten thousand (1920 x 1080) 30fps can be output, H.264 coding is supported, the compression ratio is high, and the code stream is ultra-low. The local controller acquires image information shot and recorded by the camera 3, caches the image information in the local memory, and simultaneously sends the image information to the 5G communication unit, and the 5G communication unit sends the image information to the control platform; the 'call' button of the function button is pressed, the storage battery supplies power to the microphone 5, the local controller acquires voice information recorded by the microphone 5, caches the voice information in the local memory, simultaneously sends the voice information to the 5G communication unit, and the 5G communication unit sends the voice information to the control platform; when the local controller receives voice data from the management and control platform through the 5G communication unit, the local controller sends the received voice data to the loudspeaker 4, and the loudspeaker 4 plays the voice; when the 5G communication intelligent mining safety helmet is in a working state, the local controller acquires the geographical position of the mining safety helmet 1 at regular time, and the geographical position is sent to a remote monitoring platform through a 5G communication unit, a local controller acquires the environmental information of the environmental monitoring unit at regular time and compares the environmental information with a preset value, when the environmental information is different from the preset value, the local controller calls the voice data of 'over-high temperature', 'over-high humidity', 'over-high gas content' and 'over-low oxygen content' from the local memory according to the environmental information value and sends the data to the loudspeaker 4, so that the loudspeaker 4 plays the voice information, meanwhile, the local controller sends environment abnormity alarm information to the 5G communication unit, the 5G communication unit sends the alarm information to the control platform, and the remote control platform timely acquires the position of the mining safety helmet and the current environment condition and conducts dispersion or rescue.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. The utility model provides a mining safety helmet of 5G communication intelligence which characterized in that: the mining safety helmet comprises a mining safety helmet body, an LED illuminating lamp and a camera which are arranged at the front part of the mining safety helmet body, a loudspeaker and a microphone which are arranged at the middle part of the mining safety helmet body, a mounting box which is arranged at the rear part of the mining safety helmet body, a circuit board which is fixed in the mounting box, and an environment monitoring unit, a 5G communication unit, a local memory, a function indicating lamp, a storage battery and a function button which are integrated on the circuit board;
the front part of the mining safety helmet body is provided with a clamping groove for fixing the LED lighting, the clamping groove for fixing the LED lighting lamp is positioned on the outer side of the mining safety helmet body, and a wire hole is formed in the clamping groove for fixing the LED lighting lamp and used for allowing a wire to pass through; the front part of the mining safety helmet body is provided with a mounting hole for mounting a camera, and the mounting hole is arranged below a clamping groove for fixing an LED illuminating lamp;
the middle part of the left side of the mining safety cap body is provided with a foldable microphone, the microphone is connected with the mining safety cap body through a rotating shaft, and a wire hole is formed in the connecting part of the mining safety cap body and the rotating shaft and used for a wire to pass through;
the middle part of the right side of the mining safety helmet body is provided with a clamping groove for fixing a loudspeaker, the clamping groove for fixing the loudspeaker is positioned at the inner side of the mining safety helmet body, and the mining safety helmet body is provided with a honeycomb-shaped small hole for transmitting sound at the position of the clamping groove for fixing the loudspeaker;
the rear part of the mine safety cap body is provided with a clamping groove for fixing the mounting box, the clamping groove for fixing the mounting box is positioned on the outer side of the mine safety cap body, and a wire hole is formed in the clamping groove for fixing the mounting box and used for allowing a wire to pass through; the inner side of the mining safety cap body is provided with a wire groove for arranging and fixing wires, and the wire groove is connected with each mounting hole and each wire hole.
2. The intelligent mining safety helmet of claim 1, wherein the intelligent mining safety helmet comprises: the mounting box is internally provided with a clamping groove for fixing the circuit board, one side of the mounting box, which is fixed on the mine safety cap body, is provided with a wire hole matched with the wire hole on the mine safety cap body, one side of the mounting box, which is far away from the mine safety cap body, is provided with a mounting hole matched with the size of a function button, the right side of the mounting box is provided with a power supply interface connected with an external storage battery, and the outer layout of the mounting box is provided with a function indicator lamp.
3. The intelligent mining safety helmet of claim 1, wherein the intelligent mining safety helmet comprises: the local controller is packaged on the circuit board and consists of an MCU module and a driving circuit, the local controller is connected with the environment monitoring unit, the 5G communication unit, the local memory, the function indicating lamp, the storage battery and the function button through an integrated circuit on the circuit board, and the local controller is connected with the LED illuminating lamp, the microphone and the loudspeaker through a lead circuit; the storage battery and the switch button of the control switch are connected with a ground controller circuit through wires, the local controller is connected with the camera, the loudspeaker, the microphone, the environment monitoring unit, the 5G communication unit, the local memory and the function button circuit and is used for driving and controlling the units, the local controller can respectively control the LED illuminating lamp, the camera and the environment sensor and display different function indicating lamps when the function button is pressed for different times, and a power circuit of each function unit of the 5G communication intelligent mining safety helmet is formed.
4. The intelligent mining safety helmet of claim 1, wherein the intelligent mining safety helmet comprises: the 5G communication unit comprises a 5G communication module and a position positioning module, the 5G communication unit is in circuit connection with a local controller and performs information interaction, the receiving and sending of signals are controlled by the local controller, the 5G communication unit is in real-time communication with the remote 5G monitoring platform through a 5G network through wireless signals, the 5G communication unit performs information interaction with the remote 5G monitoring platform according to instructions of the local controller, the 5G communication unit further comprises a position positioning module, when the 5G communication unit is in information interaction with the remote monitoring platform, the position positioning module acquires position information of the safety helmet and transmits the position information to the remote 5G monitoring platform through a 5G signal.
5. The intelligent mining safety helmet of claim 1, wherein the intelligent mining safety helmet comprises: the single temperature sensor of environmental monitoring, humidity transducer, gas content sensor, oxygen content sensor all carries out information interaction with local controller circuit connection, local controller acquires temperature sensor's ambient temperature respectively, humidity transducer's ambient humidity, gas content sensor's ambient gas content and oxygen content sensor's ambient oxygen content, and these environmental index data storage are in local memory, local controller carries out the operation comparison simultaneously, if surpass the alarm value that local controller set for, then local controller sends alarm signal, the police sends through the speaker soon, arouse the staff to pay attention to safety, this alarm information also sends to long-range 5G surveillance center and reports an emergency and asks for help or increased vigilance through 5G communication unit simultaneously.
6. The intelligent mining safety helmet of claim 1, wherein the intelligent mining safety helmet comprises: the microphone comprises a microphone, an elastic rod and a rotating shaft, the rotating shaft can be installed on the mining safety helmet body, the microphone and the rotating shaft are connected to the two ends of the elastic rod, the rotating shaft and the microphone are both hollow, and a wire can penetrate through the rotating shaft and the microphone.
7. The intelligent mining safety helmet of claim 1, wherein the intelligent mining safety helmet comprises: the loudspeaker is a moving-coil loudspeaker with the diameter of 30-40 mm.
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| CN202020167709.1U CN211631926U (en) | 2020-02-13 | 2020-02-13 | 5G communication intelligent mining safety helmet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112309082A (en) * | 2020-11-16 | 2021-02-02 | 辽宁工程技术大学 | Mine environment real-time monitoring system based on 5G information technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112309082A (en) * | 2020-11-16 | 2021-02-02 | 辽宁工程技术大学 | Mine environment real-time monitoring system based on 5G information technology |
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