Intelligent safety helmet with communication function

Abstract

The utility model discloses an intelligent safety helmet with a communication function, and relates to the technical field of intelligent wearable equipment and communication. The intelligent safety helmet with the communication function comprises a helmet body, a main antenna module, an auxiliary antenna module and a communication module, and the main antenna module is arranged at the top of the helmet body; the auxiliary antenna module is arranged on at least one side of the cap body and is staggered with the main antenna module, and the working frequency band of the auxiliary antenna module and the working frequency band of the main antenna module are different and partially coincide; and the communication module is arranged in the cap body, and the communication module is electrically connected with the main antenna module and the auxiliary antenna module. According to the technical scheme provided by the utility model, the communication reliability of the intelligent safety helmet with the communication function is improved.

Description

Technical Field

[0001] This utility model relates to the field of smart wearable devices and communication technology, and in particular to a smart safety helmet with communication function. Background Technology

[0002] As modern work environments become increasingly complex and intelligent, the communication needs between on-site workers and between on-site workers and the command center are constantly increasing, leading to higher requirements for smart safety helmets with communication capabilities.

[0003] Most existing smart safety helmets with communication functions use antenna modules operating on a single frequency band for communication. Due to the complexity and variability of the communication environment, a single frequency band may face problems such as insufficient signal coverage or interference, resulting in low communication reliability. Utility Model Content

[0004] The main purpose of this invention is to propose a smart safety helmet with communication function, aiming to improve the communication reliability of smart safety helmets with communication function.

[0005] To achieve the above objectives, the present invention proposes a smart safety helmet with communication function, comprising:

[0006] hat body;

[0007] The main antenna module is located at the top of the cap.

[0008] An auxiliary antenna module is disposed on at least one side of the cap and offset from the main antenna module. The operating frequency band of the auxiliary antenna module is different from and partially overlaps with the operating frequency band of the main antenna module.

[0009] A communication module is located inside the cap body, and the communication module is electrically connected to the main antenna module and the auxiliary antenna module.

[0010] In one embodiment, the main antenna module is configured as a planar antenna, which includes a ground plane, a multilayer dielectric substrate, and a radiating patch stacked in sequence. The ground plane is attached to the outer surface of the cap, and at least two of the dielectric substrates have different dielectric constants.

[0011] In one embodiment, the auxiliary antenna module includes:

[0012] At least one flexible helical antenna;

[0013] A protective sleeve is disposed on the outer surface of the cap body, and each of the elastic helical antennas is correspondingly disposed inside one of the protective sleeves. The protective sleeve has an opening through which the elastic helical antenna extends; and...

[0014] A cover, detachably disposed over the opening, is used to abut against the elastic helical antenna to compress the elastic helical antenna.

[0015] In one embodiment, the auxiliary antenna module further includes a guiding structure, the guiding structure comprising:

[0016] A guide ring, disposed within the protective sleeve, is fitted around the outer periphery of the elastic helical antenna and fixedly connected to it; and,

[0017] A guide groove is provided on the inner wall of the protective sleeve, and the guide ring is slidably disposed in the guide groove.

[0018] In one embodiment, the smart safety helmet with communication function further includes:

[0019] A protective cover is detachably mounted on the cap to expose or cover the main antenna module.

[0020] In one embodiment, the protective shield includes:

[0021] A transparent shell, detachably mounted on the cap body; and,

[0022] A photochromic coating is applied to the surface of the transparent housing.

[0023] In one embodiment, the cap body includes:

[0024] The outer casing, wherein both the main antenna module and the auxiliary antenna module are disposed on the outer surface of the outer casing;

[0025] A buffer layer covering the inner surface of the outer casing; and,

[0026] The brim protrudes from the periphery of the outer shell, and the communication module is located at the bottom of the brim.

[0027] In one embodiment, the smart safety helmet with communication function further includes:

[0028] A signal amplifier is disposed between the housing and the buffer layer, and the signal amplifier is electrically connected to the main antenna module and the communication module.

[0029] In one embodiment, the outer surface of the housing is provided with an electromagnetic shielding coating.

[0030] In one embodiment, the cap body includes:

[0031] A heat sink is disposed between the outer casing and the buffer layer; and,

[0032] A heat dissipation hole is provided on the outer casing and communicates with the heat sink.

[0033] This invention provides a smart safety helmet with communication capabilities, comprising a helmet body, a main antenna module, an auxiliary antenna module, and a communication module. The main antenna module is located at the top of the helmet body; the auxiliary antenna module is located on at least one side of the helmet body and is offset from the main antenna module, with its operating frequency band differing from and partially overlapping with that of the main antenna module; and the communication module is located inside the helmet body and is electrically connected to both the main and auxiliary antenna modules. Compared to existing smart safety helmets with communication capabilities that operate on a single frequency band, this invention provides both a main antenna module and an auxiliary antenna module operating on different and partially overlapping frequency bands. The auxiliary antenna module can supplement the signal transmission from the main antenna module. The main and auxiliary antenna modules cooperate to achieve multi-band signal transmission, improving the communication reliability of the smart safety helmet with communication capabilities. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the structure of an embodiment of the smart safety helmet with communication function provided by this utility model;

[0036] Figure 2 for Figure 1 A schematic diagram of the structure of an embodiment from another perspective;

[0037] Figure 3 for Figure 1 A cross-sectional view of one embodiment;

[0038] Figure 4 for Figure 1 A partial cross-sectional view of one embodiment of the protective sleeve and the flexible helical antenna;

[0039] Figure 5 for Figure 1 A schematic diagram of the structure of another embodiment from another perspective.

[0040] Explanation of icon numbers:

[0041] 100. Cap body; 110. Outer shell; 111. Ventilation holes; 120. Buffer layer; 130. Cap brim; 140. Protective cover; 150. Battery module;

[0042] 200. Main antenna module; 210. Ground plane; 220. Dielectric substrate; 230. Radiating patch; 240. Signal amplifier;

[0043] 310. Flexible helical antenna; 320. Protective sleeve; 321. Guide groove; 330. Cover; 340. Guide ring;

[0044] 410. Headphones; 420. Surface mount microphone; 430. Speaker; 440. Control buttons; 450. Lighting; 460. Camera.

[0045] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0047] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0048] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0049] As modern work environments become increasingly complex and intelligent, the communication needs between on-site workers and between on-site workers and the command center are constantly increasing, leading to higher requirements for smart safety helmets with communication capabilities.

[0050] Most existing smart safety helmets with communication functions use antenna modules operating on a single frequency band for communication. Due to the complexity and variability of the communication environment, a single frequency band may face problems such as insufficient signal coverage or interference, resulting in low communication reliability.

[0051] This invention proposes a smart safety helmet with communication function to improve the communication reliability of smart safety helmets with communication function.

[0052] Please see 1 and Figure 2 In one embodiment, the smart safety helmet with communication function includes a helmet body 100, a main antenna module 200, an auxiliary antenna module, and a communication module. The main antenna module 200 is located at the top of the helmet body 100, and the auxiliary antenna module is located on at least one side of the helmet body 100 and is offset from the main antenna module 200. The operating frequency band of the auxiliary antenna module is different from and partially overlaps with the operating frequency band of the main antenna module 200. The communication module is located inside the helmet body 100 and is electrically connected to the main antenna module 200 and the auxiliary antenna module.

[0053] The helmet body 100 is the basic structural component of the entire smart safety helmet with communication capabilities, providing a mounting base for other structures. The main antenna module 200 is located at the top of the helmet body 100, enabling better signal reception and transmission while reducing signal obstruction. The auxiliary antenna module is staggered from the main antenna module 200 to avoid signal interference. Specifically, in one embodiment, the auxiliary antenna and the main antenna module 200 are staggered on the horizontal plane of the helmet body 100. Of course, in other embodiments, the auxiliary antenna and the main antenna module 200 can also be staggered on the vertical plane of the helmet body 100; this is not a limitation. In one embodiment, the main antenna module 200 operates primarily at high frequencies, mainly for data transmission and directional communication. The auxiliary antenna module operates primarily at low frequencies, mainly for long-distance, omnidirectional communication. The operating frequency band of the auxiliary antenna module partially overlaps with that of the main antenna module 200. Specifically, in one embodiment, the main operating frequency band of the main antenna module 200 is approximately 2.4 GHz to 6 GHz, the main operating frequency band of the auxiliary antenna module is approximately 500 MHz to 2.5 GHz, and the overlapping frequency band of the auxiliary antenna module and the auxiliary antenna module is approximately 2.4 GHz to 2.5 GHz. Of course, in other embodiments, the main operating frequency bands of the main antenna module 200 and the auxiliary antenna module can be flexibly set according to actual needs, as long as partial overlap is ensured; no restrictions are imposed here.

[0054] Thus, when the smart helmet with communication capabilities is in an environment with good signal, the main antenna module 200 is responsible for the main communication work; when the smart helmet with communication capabilities enters an environment with weak or complex signals, the auxiliary antenna module performs the main communication work or works in conjunction with the main antenna module 200. Especially in overlapping frequency bands, the main antenna module 200 and the auxiliary antenna module can work together to make signal transmission smoother; the main antenna module 200 and the auxiliary antenna module can also work independently, serving as backups for each other, avoiding signal transmission interruptions and improving communication stability.

[0055] The communication module is responsible for receiving signals from the main antenna module 200 and the auxiliary antenna module, processing the signals, and transmitting signals that need to be sent through the main antenna module 200 or the auxiliary antenna module, thereby realizing communication between the smart helmet with communication function and external devices. The external devices can be base stations or monitoring centers, etc., without limitation. In one embodiment, the communication module includes a camera 460, which is located on the helmet body 100 and used to transmit images for image communication. In one embodiment, the communication module is electrically connected to a battery module 150, which is located on the helmet body 100, to provide the necessary power for the communication module and ensure its normal operation. Further, in one embodiment, the communication module includes a signal detection unit for detecting ambient signals, allowing the user to switch between the main antenna module 200 and the auxiliary antenna module in a timely manner. The signal detection unit can be a signal strength indicator or a frequency analyzer, etc. The communication module also includes a signal processing unit, a storage unit, and a control unit, etc., without specific limitations on the communication module.

[0056] The technical solution of this utility model involves a smart safety helmet with communication function comprising a helmet body 100, a main antenna module 200, an auxiliary antenna module, and a communication module. The main antenna module 200 is located at the top of the helmet body 100; the auxiliary antenna module is located on at least one side of the helmet body 100 and is offset from the main antenna module 200, with its operating frequency band differing from and partially overlapping with that of the main antenna module 200; and the communication module is located inside the helmet body 100 and is electrically connected to both the main antenna module 200 and the auxiliary antenna module. Compared to existing smart safety helmets with communication function that operate on a single frequency band, this utility model simultaneously incorporates a main antenna module 200 and an auxiliary antenna module with different and partially overlapping operating frequency bands. The auxiliary antenna module can supplement the signal transmission from the main antenna module 200. The main antenna module 200 and the auxiliary antenna module cooperate to achieve multi-band signal transmission, improving the communication reliability of the smart safety helmet with communication function.

[0057] Please see Figures 1 to 3In one embodiment, the main antenna module 200 is configured as a planar antenna, which includes a ground plane 210, a multilayer dielectric substrate 220 and a radiating patch 230 stacked in sequence. The ground plane 210 is attached to the outer surface of the cap 100, and at least two dielectric substrates 220 have different dielectric constants.

[0058] The ground plane 210 provides a stable electromagnetic reference, reducing signal reflection and interference. In one embodiment, the shape of the ground plane 210 matches the outer surface shape of the top of the cap 100 to ensure a tight fit and good grounding. In one embodiment, the cap 100 has a pre-drilled hole, and the ground plane 210 covers the pre-drilled hole and is electrically connected to the communication module through the pre-drilled hole. The ground plane 210 is made of a highly conductive metal to ensure efficient current flow; however, the specific material of the ground plane 210 is not limited. In one embodiment, the thickness of the ground plane 210 is between 0.3 mm and 1 mm to ensure effective functionality while avoiding increased weight. Of course, in other embodiments, the thickness of the ground plane 210 can be flexibly set according to actual conditions; this is not limited here.

[0059] The radiating patch 230, as the main radiating element of the main antenna module 200, is primarily responsible for transmitting and receiving electromagnetic signals. The radiating patch 230 is made of a metallic material with good electrical conductivity to ensure efficient conversion between electromagnetic waves and signals and reduce energy loss; however, no specific limitations are imposed. In one embodiment, the radiating patch 230 is rectangular in shape, and its thickness is between 0.03 mm and 0.1 mm to ensure effective functionality while avoiding increased weight. Of course, in other embodiments, the shape and thickness of the radiating patch 230 can be flexibly set according to actual conditions; no limitations are imposed.

[0060] A dielectric substrate 220 is disposed between a ground plane 210 and a radiating patch 230 to isolate the radiating patch 230 from the ground plane 210. In one embodiment, the dielectric substrate 220 has three layers. The first and third layers are made of low-dielectric-constant materials to reduce electromagnetic wave propagation loss in the dielectric substrate 220; the second layer is made of high-dielectric-constant materials to slow down the propagation speed of electromagnetic waves. The low-dielectric-constant materials can be polytetrafluoroethylene (PTFE), etc., and the high-dielectric-constant materials can be ceramic-filled polyimide, etc., without limitation. In one embodiment, the thickness of each dielectric substrate 220 layer is between 0.8 mm and 1.2 mm to ensure effective functionality while avoiding increased weight. Of course, in other embodiments, the thickness of the dielectric substrate 220 can be flexibly set according to actual conditions, without limitation. In one embodiment, the three dielectric substrate layers 220 are sequentially bonded to the ground plane 210 with conductive adhesive to ensure good electrical contact. Of course, in other embodiments, the dielectric substrate 220 can also have two or four layers, etc., without limitation.

[0061] The technical solution of this embodiment of the invention utilizes a flat panel antenna. This antenna enables high-speed transmission in higher frequency bands and directional communication. The flat panel antenna has a simple structure, is easy to install, and is lightweight, avoiding the need to add extra weight to the smart helmet with communication capabilities. By using multiple layers of dielectric substrates 220, a gradually changing electromagnetic environment is created between the substrates 220 with different dielectric constants, optimizing the radiation direction and gain of the flat panel antenna. The different dielectric constants of the dielectric substrates 220 reduce electromagnetic wave reflection between different dielectric interfaces, thereby improving signal transmission efficiency and further enhancing the communication reliability of the smart helmet with communication capabilities.

[0062] Please see Figure 1 and Figure 2 In one embodiment, the auxiliary antenna module includes at least one flexible helical antenna 310, a protective sleeve 320, and a cover 330. The protective sleeve 320 is disposed on the outer surface of the cap 100, and each flexible helical antenna 310 is correspondingly disposed inside a protective sleeve 320. The protective sleeve 320 has an opening through which the flexible helical antenna 310 extends. The cover 330 is detachably disposed on the opening and is used to abut against the flexible helical antenna 310 to compress the flexible helical antenna 310.

[0063] In one embodiment, the elastic helical antenna 310 is configured as a helical structure made of shape memory alloy to improve its deformation capability. Of course, in other embodiments, the elastic helical antenna 310 may also use other metallic materials with good conductivity and elasticity to ensure both good signal transmission and deformation capability; this is not a limitation. In one embodiment, the auxiliary antenna module includes two elastic helical antennas 310, and two corresponding protective sleeves 320 are provided. The two protective sleeves 320 are respectively located on both sides of the cap 100 and near the rear side of the cap 100, so as to be offset from the planar antenna. One end of the elastic helical antenna 310 is fixed inside the protective sleeve 320, and the other end of the elastic helical antenna 310 extends out from the opening. In one embodiment, a flexible member is provided on the inner circumference of the cover 330, and the cover 330 is detachably connected to the protective sleeve 320 through an interference fit of the flexible member. Of course, in other embodiments, the cover 330 and the protective sleeve 320 may also be detachably connected by means of snaps or threads; this is not a limitation. Of course, in other embodiments, one or more flexible spiral antennas 310 may be provided. The flexible spiral antennas 310 are staggered with the flat panel antenna. The number of protective sleeves 320 and covers 330 corresponds to the number of flexible spiral antennas 310. Here, the specific number of flexible spiral antennas 310 is not limited.

[0064] Please see Figure 4 In one embodiment, the auxiliary antenna module further includes a guide structure, which includes a guide ring 340 and a guide groove 321. The guide ring 340 is disposed inside the protective sleeve 320 and is fitted around the outer periphery of the elastic helical antenna 310 and fixedly connected to it. The guide groove 321 is disposed on the inner wall of the protective sleeve 320, and the guide ring 340 is slidably disposed in the guide groove 321. Specifically, in one embodiment, the extending direction of the guide groove 321 is parallel to the extending direction of the elastic helical antenna 310. Both sides of the guide ring 340 are provided with protrusions facing the protective sleeve 320, and the guide groove 321 has two corresponding protrusions, each slidably disposed in the guide groove 321. In one embodiment, two guide rings 340 are spaced apart, and both guide rings 340 are fixedly connected to the elastic helical antenna 310. Of course, in other embodiments, one or more guide rings 340 may be provided; this is not limited here.

[0065] When the flexible spiral antenna 310 is not needed or the external environment is very harsh, pressing the flexible spiral antenna 310 compresses it, causing the guide ring 340 to move along the guide groove 321 until the flexible spiral antenna 310 is fully inserted into the protective sleeve 320. The cover 330 is then placed over the opening to confine the flexible spiral antenna 310 within the protective sleeve 320. When the flexible spiral antenna 310 needs to be used, the cover 330 is removed, and under the action of elasticity, the flexible spiral antenna 310 extends out of the protective sleeve 320 from the opening.

[0066] The technical solution of this utility model embodiment, by setting up an elastic spiral antenna 310, provides high penetration in the low-frequency band, making it suitable for complex environments. Furthermore, the elastic spiral antenna 310 achieves omnidirectional signal coverage, avoiding directional limitations and improving the versatility and adaptability of the auxiliary antenna module. The circular polarization of the elastic spiral antenna 310, compared to the vertical polarization of a planar antenna, reduces co-channel interference. The protective sleeve 320 and cover 330 provide protection for the elastic spiral antenna 310, reducing the impact of the external environment and extending its service life. The guide ring 340 prevents the elastic spiral antenna 310 from shifting or shaking during use, enhancing the integrity between the elastic spiral antenna 310 and the protective sleeve 320 and improving the structural stability of the auxiliary antenna module.

[0067] Please see Figures 1 to 3 In one embodiment, the smart safety helmet with communication function also includes a protective cover 140, which is detachably disposed on the helmet body 100 to expose or cover the main antenna module 200.

[0068] In one embodiment, the protective cover 140 includes a transparent shell and a photochromic coating. The transparent shell is detachably disposed on the cap body 100, and the photochromic coating covers the surface of the transparent shell. The photochromic coating can automatically adjust its transparency according to the light intensity. Specifically, in one embodiment, the periphery of the transparent shell is fitted to the cap body 100, and the periphery of the transparent shell is provided with a snap-fit ​​portion. The cap body 100 is provided with a corresponding snap-fit ​​groove, and the transparent shell and the cap body 100 are detachably connected through the snap-fit ​​portion and the snap-fit ​​groove. Of course, in other embodiments, the transparent shell and the cap body 100 can also be connected by screws or magnetic attraction, etc., which is not limited here. In one embodiment, the photochromic coating is uniformly covered on the surface of the transparent shell. The material of the photochromic coating can be a photochromic material such as spiropyran or titanium dioxide, which is not limited here.

[0069] The technical solution of this utility model embodiment, through the transparent shell and photochromic coating, allows the main antenna module 200 to be protected without affecting its normal use, thus preventing damage and contamination from external forces. The photochromic coating can absorb ultraviolet rays, reducing direct ultraviolet radiation to the antenna module. In strong light environments, the photochromic coating will darken to reduce light transmittance, thereby reducing the temperature inside the transparent shell and improving the service life of the main antenna module 200.

[0070] Please see Figure 3 In one embodiment, the hat body 100 includes an outer shell 110, a buffer layer 120, and a brim 130, wherein the main antenna module 200 and the auxiliary antenna module are both disposed on the outer surface of the outer shell 110; the buffer layer 120 covers the inner surface of the outer shell 110; the brim 130 protrudes from the periphery of the outer shell 110, and the communication module is disposed at the bottom of the brim 130.

[0071] In one embodiment, the grounding plate 210 is tightly fitted to the outer shell 110, the protective cover 140 is detachably connected to the outer shell 110, the protective sleeve 320 is disposed on the outer shell 110, the buffer layer 120 covers the inner surface of the outer shell 110, and the periphery of the outer shell 110 protrudes towards the side away from the buffer layer 120 to form a brim 130. The outer shell 110 can be made of materials with good strength, such as polycarbonate, glass fiber reinforced plastic, polypropylene, or carbon fiber composite materials, to ensure the protective function of the outer shell 110. The buffer layer 120 can be made of materials with good shock absorption and flexibility, such as polyurethane foam, rubber, or polyethylene foam, to effectively reduce the impact force of external impacts on the head. The specific materials of the outer shell 110 and the buffer layer 120 are not limited here. In one embodiment, the brim 130 is integrally formed with the outer shell 110 to ensure the structural stability of the hat body 100. Of course, in other embodiments, the brim 130 can also be detachably or fixedly connected to the outer shell 110; this is not limited here. Please refer to [link to relevant documentation]. Figure 1 Specifically, in one embodiment, the brim 130 has a curved portion, and a mounting position is formed below the curved portion. The camera 460 and the lighting lamp 450 are located at the mounting position, and the brim 130 provides protection for the camera 460 and the lighting lamp 450. Please refer to... Figure 5In one embodiment, the communication module further includes an earphone 410, a speaker 430, and a patch microphone 420. The earphone 410, speaker 430, and patch microphone 420 are all located at the bottom of the brim 130. Communication with external devices can be achieved through the speaker 430 and patch microphone 420. The brim 130 provides protection for these components. No specific limitations are imposed on the communication module. Furthermore, the smart safety helmet with communication functionality also includes operation buttons located at the bottom of the brim 130. Control buttons 440 can be used to control lights, the earphone 410, or the patch microphone 420, etc. No limitations are imposed on these controls.

[0072] In one embodiment, the outer surface of the housing 110 is provided with an electromagnetic shielding coating. The electromagnetic shielding coating is made of a material with good conductivity to ensure effective electromagnetic shielding. No limitation is placed on the material of the electromagnetic shielding coating. The thickness of the electromagnetic shielding coating can be flexibly set according to the conductivity of the material and the required electromagnetic shielding effect; no limitation is placed here.

[0073] The technical solution of this utility model embodiment, by setting the outer shell 110 and the brim 130, can provide physical protection for the communication module and provide mounting support for the main antenna module 200 and the auxiliary antenna module. By setting the buffer layer 120, external impact forces can be effectively absorbed and dispersed, improving the safety and comfort of the smart safety helmet with communication function. By setting the electromagnetic shielding coating, the communication module of the smart safety helmet with communication function can be effectively protected from external electromagnetic interference, and the mutual interference between the main antenna module 200 and the auxiliary antenna module can be further avoided, improving the communication stability and reliability of the smart safety helmet with communication function.

[0074] Please see Figure 3 In one embodiment, the smart safety helmet with communication function also includes a signal amplifier 240 disposed between the outer shell 110 and the buffer layer 120. The signal amplifier 240 is electrically connected to the main antenna module 200 and the communication module.

[0075] In one embodiment, the signal amplifier 240 is disposed on the top of the smart safety helmet with communication function, corresponding to the main antenna module 200. The signal amplifier 240 is electrically connected to the ground plane 210 through a reserved hole. In one embodiment, a mounting groove is provided between the outer shell 110 and the buffer layer 120, and the signal amplifier 240 is fixed in the mounting groove. Of course, in other embodiments, the position of the signal amplifier 240 can be flexibly set according to the actual situation, and there is no limitation here. Specifically, in one embodiment, the signal amplifier 240 is electrically connected to the main antenna module 200 and the communication module through a coaxial cable or a flexible circuit board, and there is no limitation here. The signal amplifier 240 can be an integrated radio frequency front-end module or a power amplifier, etc., and there is no limitation here. In this way, by setting the signal amplifier 240, the signal strength and coverage of the communication module can be improved, further improving the communication stability and reliability of the smart safety helmet with communication function.

[0076] Please see Figure 1 In one embodiment, the cap body 100 includes a heat sink and a heat dissipation hole 111. The heat sink is disposed between the outer shell 110 and the buffer layer 120; the heat dissipation hole 111 is disposed in the outer shell 110 and communicates with the heat sink.

[0077] In one embodiment, the heat sink is closely fitted to the buffer layer 120 and the outer casing 110 and is located close to the communication module and signal amplifier 240. The heat sink partially covers the heat dissipation holes 111 to facilitate heat exchange with the air. Specifically, in one embodiment, the heat sink is configured as a thermally conductive metal sheet. The thermally conductive metal sheet has good thermal conductivity and protective properties, and can provide protection while dissipating heat, preventing the buffer layer 120 from being partially exposed to the heat dissipation holes 111. Here, there is no limitation on the thermally conductive metal material. In one embodiment, the heat dissipation holes 111 are located on the front side of the outer casing 110. Of course, in other embodiments, the heat dissipation holes 111 can also be located on the sides, rear side, or evenly distributed on the outer casing 110. Here, there is no limitation. The shape of the heat dissipation holes 111 can be elliptical, circular, rectangular, or strip-shaped, etc. Here, there is no limitation.

[0078] The technical solution of this utility model embodiment, by setting heat dissipation holes 111 and heat dissipation fins, can improve the heat dissipation effect of the smart safety helmet with communication function, reduce the impact of heat on the internal structure of the smart safety helmet with communication function and the user, and improve the reliability of the smart safety helmet with communication function.

[0079] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A smart safety helmet with communication function, characterized in that, include: hat body; The main antenna module is located at the top of the cap. An auxiliary antenna module is disposed on at least one side of the cap and offset from the main antenna module. The operating frequency band of the auxiliary antenna module is different from and partially overlaps with the operating frequency band of the main antenna module. A communication module is located inside the cap body, and the communication module is electrically connected to the main antenna module and the auxiliary antenna module.

2. The smart safety hat with communication function according to claim 1, wherein, The main antenna module is configured as a planar antenna, which includes a ground plane, a multilayer dielectric substrate, and a radiating patch stacked in sequence. The ground plane is attached to the outer surface of the cap body, and at least two of the dielectric substrates have different dielectric constants.

3. The smart safety hat with communication function according to claim 1, wherein, The auxiliary antenna module includes: At least one flexible helical antenna; A protective sleeve is disposed on the outer surface of the cap body, and each of the elastic helical antennas is correspondingly disposed inside one of the protective sleeves. The protective sleeve has an opening through which the elastic helical antenna extends; and... A cover, detachably disposed over the opening, is used to abut against the elastic helical antenna to compress the elastic helical antenna.

4. The smart safety hat with communication function according to claim 3, wherein, The auxiliary antenna module further includes a guiding structure, the guiding structure comprising: A guide ring, disposed within the protective sleeve, is fitted around the outer periphery of the elastic helical antenna and fixedly connected to it; and, A guide groove is provided on the inner wall of the protective sleeve, and the guide ring is slidably disposed in the guide groove.

5. The smart safety hat with communication function according to claim 1, wherein, The smart safety helmet with communication capabilities also includes: A protective cover is detachably mounted on the cap to expose or cover the main antenna module.

6. The smart safety hat with communication function according to claim 5, wherein, The protective shield includes: A transparent shell, detachably mounted on the cap body; and, A photochromic coating is applied to the surface of the transparent housing.

7. The smart safety hat with communication function according to claim 1, wherein, The cap body includes: The outer casing, wherein both the main antenna module and the auxiliary antenna module are disposed on the outer surface of the outer casing; A buffer layer covering the inner surface of the outer casing; and, The brim protrudes from the periphery of the outer shell, and the communication module is located at the bottom of the brim.

8. The smart safety hat with communication function according to claim 7, wherein, The smart safety helmet with communication capabilities also includes: A signal amplifier is disposed between the housing and the buffer layer, and the signal amplifier is electrically connected to the main antenna module and the communication module.

9. The smart safety hat with communication function according to claim 7, wherein, The outer surface of the housing is provided with an electromagnetic shielding coating.

10. The smart safety hat with communication function according to claim 7, wherein, The cap body includes: A heat sink is disposed between the outer casing and the buffer layer; and, A heat dissipation hole is provided on the outer casing and communicates with the heat sink.

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