micro base station

Abstract

The utility model discloses a kind of micro base stations, it is related to micro base station technical field, micro base station includes shell and is located at the shell Wi-Fi antenna, UWB antenna, LoRa antenna and two bluetooth antennas;Shell is provided with control module, bluetooth module, Wi-Fi module, UWB module and LoRa module inside, control module is connected with bluetooth module, Wi-Fi module, UWB module and LoRa module electricity respectively;Wi-Fi antenna is connected with Wi-Fi module and is connected with electricity;UWB antenna is connected with UWB module and is connected with electricity;LoRa antenna is connected with LoRa module and is connected with electricity;Two bluetooth antennas are connected with bluetooth module and are connected with electricity;Two bluetooth antennas are orthogonally arranged.The technical scheme provided by the utility model can solve the problem that multi-modal communication is difficult to deploy in explosion-proof environment, electromagnetic interference is serious and maintenance cost is high.

Description

Technical Field

[0001] This utility model relates to the field of micro base station technology, and in particular to a micro base station. Background Technology

[0002] With the rapid evolution of smart warehousing and industrial IoT technologies, digital monitoring of special operating environments such as grain silos and hazardous materials warehouses is gradually becoming an important means of supporting national production safety. Taking large grain silos as an example, their environment is highly complex and dangerous: on the one hand, the air inside the silo is often filled with high concentrations of dust, which poses a risk of dust explosion under the influence of electrical sparks or high temperatures from equipment. This places high demands on the physical casing and sealing performance of monitoring equipment for explosion protection. On the other hand, grain silo monitoring tasks present diverse communication needs, including data transmission that requires long distances, low power consumption, and long-term online operation, such as pest monitoring, as well as application scenarios that heavily rely on short-distance accurate positioning or high bandwidth, such as group control and interaction of leveling robots, high-precision positioning, and large-volume data transmission.

[0003] However, existing micro base stations mostly adopt a single communication mode design, typically integrating only one wireless communication module. When facing complex monitoring scenarios involving both large-area coverage and short-range group control, it is often necessary to deploy multiple physically independent micro base stations. This deployment method has several obvious drawbacks: First, the superimposed deployment of multiple independent micro base stations increases installation complexity and maintenance costs to some extent; second, the enclosure protection standards adopted by different micro base stations may differ, potentially creating safety hazards in dusty environments; most importantly, due to the lack of a unified hardware architecture, electromagnetic interference may occur between the signals of different wireless modes, and it is difficult to achieve a reasonable layout and effective coordination of multi-mode antennas within a confined explosion-proof space. Utility Model Content

[0004] The main purpose of this invention is to propose a micro base station that aims to solve the problems of difficult collaborative deployment of multimodal communication in explosion-proof environments, severe electromagnetic interference, and high maintenance costs.

[0005] To achieve the above objectives, the micro base station proposed in this utility model includes:

[0006] The housing contains a control module, a Bluetooth module, a Wi-Fi module, a UWB module, and a LoRa module. The control module is electrically connected to the Bluetooth module, the Wi-Fi module, the UWB module, and the LoRa module, respectively.

[0007] A Wi-Fi antenna is disposed in the housing and is connected to and electrically connected to the Wi-Fi module;

[0008] The UWB antenna is located in the housing and is connected to and electrically connected to the UWB module.

[0009] A LoRa antenna is disposed in the housing and is connected to and electrically connected to the LoRa module;

[0010] Two Bluetooth antennas are respectively disposed on the housing and connected to and electrically connected to the Bluetooth module; the two Bluetooth antennas are arranged orthogonally.

[0011] In one embodiment, the housing includes four sidewalls that are sequentially connected and enclose a rectangular cavity, with corners formed at the junctions of adjacent sidewalls; the Wi-Fi antenna, the UWB antenna, and the LoRa antenna are respectively disposed on two opposite sidewalls of the housing; and two Bluetooth antennas are disposed at the corners.

[0012] In one embodiment, the four sidewalls include a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall;

[0013] The first sidewall and the third sidewall are disposed opposite each other along the height direction of the outer shell, and the second sidewall and the fourth sidewall are disposed opposite each other along the length direction of the outer shell;

[0014] The corner is formed at the junction of the first sidewall and the second sidewall, and the corner is formed at the junction of the first sidewall and the fourth sidewall.

[0015] The two Bluetooth antennas are positioned one-to-one at the two corners;

[0016] The Wi-Fi antenna is located on the first side wall;

[0017] The UWB antenna and the LoRa antenna are located on the third sidewall.

[0018] In one embodiment, the Wi-Fi antenna extends from the first sidewall along the height direction of the housing;

[0019] The UWB antenna extends from the third sidewall along the height direction of the housing.

[0020] The LoRa antenna extends from the third sidewall along the height direction of the housing.

[0021] The Bluetooth antenna is tilted from the corner toward a side away from the central axis of the housing;

[0022] And / or, the micro base station further includes multiple interfaces, which are respectively disposed on the second sidewall and the fourth sidewall.

[0023] In one embodiment, the outer casing is further provided with a first opening;

[0024] The micro base station also includes a power switch and a sealing head. The power switch is electrically connected to the control module and is located at the first opening. The sealing head is located at the first opening to seal the first opening.

[0025] In one embodiment, the outer casing includes a housing and tempered glass, the control module is disposed within the housing, the housing has a second opening, and the tempered glass covers the second opening;

[0026] The housing is also provided with an indicator light, which is positioned corresponding to the tempered glass, and the indicator light emits its light outward through the tempered glass.

[0027] In one embodiment, the housing includes a cover and a bottom shell. The cover has a mounting cavity and a first mounting port communicating with the mounting cavity. The bottom shell has a second mounting port communicating with the first mounting port. The bottom shell has a positioning protrusion on its periphery corresponding to the second mounting port. The cover has a positioning groove on its periphery corresponding to the first mounting port. The positioning groove cooperates with the positioning protrusion to connect the cover and the bottom shell.

[0028] In one embodiment, the bottom shell is provided with an annular sealing groove around the periphery corresponding to the second mounting port, and the annular sealing groove is provided with an annular sealing element.

[0029] In one embodiment, the cover has a panel, the panel being provided with the second opening;

[0030] The bottom shell has a back plate opposite to the front panel;

[0031] The back panel is provided with a first mounting component, which includes a connector and a mounting body. The connector includes two first connecting parts and a second connecting part that connects the two first connecting parts. The first connecting parts extend from the back panel along the width direction of the outer shell, and the second connecting part extends along the height direction of the outer shell. The mounting body is located on the side of the second connecting part away from the panel.

[0032] In one embodiment, the back panel is provided with a plurality of second mounting members, which are inclined from the back panel toward the side away from the front panel and bend and extend toward the height direction of the housing;

[0033] Multiple second mounting members are disposed at opposite ends of the back plate along its length;

[0034] And / or, a plurality of the second mounting members are disposed at opposite ends of the back plate along the height direction.

[0035] This invention integrates a control module, Bluetooth module, Wi-Fi module, UWB module, and LoRa module into a housing. Combined with a Wi-Fi antenna, UWB antenna, LoRa antenna, and two Bluetooth antennas, it achieves deep fusion of multiple communication protocols within a single micro base station. This solves the problem that a single-mode micro base station cannot simultaneously achieve explosion-proof safety, long-distance low-power transmission, and close-range accurate positioning, significantly reducing the deployment complexity of the micro base station. Furthermore, the two Bluetooth antennas are orthogonally arranged at 90 degrees, allowing simultaneous acquisition of the phase difference in the horizontal and vertical directions to calculate the azimuth and elevation angles, achieving 360-degree blind-spot-free direction finding. The orthogonal layout also creates polarization diversity, suppressing multipath interference and reducing antenna mutual coupling, thus improving the accuracy and stability of angle-of-arrival positioning. Attached Figure Description

[0036] 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.

[0037] Figure 1 A schematic diagram of the circuit functional modules of the micro base station provided by this utility model;

[0038] Figure 2 A schematic diagram of the structure of the micro base station provided by this utility model;

[0039] Figure 3 The explosion of the micro base station provided by this utility model Figure 1 ;

[0040] Figure 4 The explosion of the micro base station provided by this utility model Figure 2 ;

[0041] Figure 5 A front view of the micro base station provided by this utility model;

[0042] Figure 6 Rear view of the micro base station provided by this utility model;

[0043] Figure 7 A side view of the micro base station provided by this utility model.

[0044] Explanation of icon numbers:

[0045] 100. Micro base station; 1. Outer shell; 11. Housing; 111. Cover; 1111. Side wall; 11111. First side wall; 11112. Second side wall; 11113. Third side wall; 11114. Fourth side wall; 1113. Panel; 1112. Corner; 112. Bottom shell; 1121. Back plate; 113. Positioning protrusion; 114. Annular seal; 12. Tempered glass; 101. First opening; 102. Second opening; 103. Mounting cavity; 104. First mounting port; 105. Second mounting port; 106. Positioning groove; 107. Annular sealing groove; 14. First mounting component; 141. Connector; 1411. First connecting part; 1412. Second connecting part; 142. Mounting body; 15. Second mounting component; 2. Control module; 21. Bluetooth module; 22. Wi-Fi module; 23. UWB module; 24. LoRa module; 31. Bluetooth antenna; 32. Wi-Fi antenna; 33. UWB antenna; 34. LoRa antenna; 4. Interface; 5. Power switch; 6. Sealing head; 7. Indicator light.

[0046] 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

[0047] 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.

[0048] With the rapid evolution of smart warehousing and industrial IoT technologies, digital monitoring of special operating environments such as grain silos and hazardous materials warehouses is gradually becoming an important means of supporting national production safety. Taking large grain silos as an example, their environment is highly complex and dangerous: on the one hand, the air inside the silo is often filled with high concentrations of dust, which poses a risk of dust explosion under the influence of electrical sparks or high temperatures from equipment. This places high demands on the physical casing and sealing performance of monitoring equipment for explosion protection. On the other hand, grain silo monitoring tasks present diverse communication needs, including data transmission that requires long distances, low power consumption, and long-term online operation, such as pest monitoring, as well as application scenarios that heavily rely on short-distance accurate positioning or high bandwidth, such as group control and interaction of leveling robots, high-precision positioning, and large-volume data transmission.

[0049] However, existing micro base stations mostly adopt a single communication mode design, typically integrating only one wireless communication module. When facing complex monitoring scenarios involving both large-area coverage and short-range group control, it is often necessary to deploy multiple physically independent micro base stations. This deployment method has several obvious drawbacks: First, the superimposed deployment of multiple independent micro base stations increases installation complexity and maintenance costs to some extent; second, the enclosure protection standards adopted by different micro base stations may differ, potentially creating safety hazards in dusty environments; most importantly, due to the lack of a unified hardware architecture, electromagnetic interference may occur between the signals of different wireless modes, and it is difficult to achieve a reasonable layout and effective coordination of multi-mode antennas within a confined explosion-proof space.

[0050] This utility model proposes a micro base station 100.

[0051] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the micro base station 100 includes:

[0052] The housing 1 contains a control module 2, a Bluetooth module 21, a Wi-Fi module 22, a UWB module 23, and a LoRa module 24. The control module 2 is electrically connected to the Bluetooth module 21, the Wi-Fi module 22, the UWB module 23, and the LoRa module 24, respectively.

[0053] Wi-Fi antenna 32 is disposed on housing 1 and is connected to and electrically connected to Wi-Fi module 22;

[0054] UWB antenna 33 is mounted on housing 1 and is connected to and electrically connected to UWB module 23;

[0055] LoRa antenna 34 is mounted on housing 1 and is connected to and electrically connected to LoRa module 24;

[0056] Two Bluetooth antennas 31 are respectively located on the outer casing 1 and connected to the Bluetooth module 21 and electrically connected. The two Bluetooth antennas 31 are orthogonally arranged.

[0057] In this embodiment, the outer casing 1 serves as the physical carrier for the control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24, providing a sealed physical protective environment for them. The structural integrity of the outer casing 1 isolates it from high-concentration external dust, reducing the possibility of electrical spark leakage from the internal circuitry leading to deflagration. In one embodiment, the outer casing 1 is made of metal, such as aluminum alloy or stainless steel, which enhances its mechanical strength and impact resistance, while also facilitating the dissipation of heat generated by the control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24 during operation. The cross-sectional shape of the outer casing 1 is rectangular, allowing for compact internal placement of the control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24.

[0058] Control module 2, through electrical connections with Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24, enables the processing of different communication protocols. Bluetooth module 21 is used to connect to near-field mobile terminals for near-field device discovery and data transmission; Wi-Fi module 22 is used to connect to a local area network access point to support high-bandwidth, high-volume data traffic; UWB module 23 is used to connect to the silo robot or positioning tag for performing silo robot group control interaction and high-precision positioning tasks; LoRa module 24 is used to connect to remote sensor nodes to maintain long-distance, low-power insect monitoring data transmission.

[0059] Bluetooth antenna 31, Wi-Fi antenna 32, UWB antenna 33, and LoRa antenna 34 are respectively located at different preset positions on the housing 1, ensuring that they are physically spaced apart and that their spatial layout meets the physical requirements for multi-modal concurrent operation. Bluetooth antenna 31 is electrically connected to Bluetooth module 21, Wi-Fi antenna 32 to Wi-Fi module 22, UWB antenna 33 to UWB module 23, and LoRa antenna 34 to LoRa module 24. This ensures that each wireless communication mode—Bluetooth, Wi-Fi, UWB, and LoRa—has an independent signal transmission and reception channel. By utilizing the different frequencies and functional characteristics of Bluetooth antenna 31, Wi-Fi antenna 32, UWB antenna 33, and LoRa antenna 34, comprehensive signal coverage is achieved in complex monitoring scenarios. For example, in a large grain warehouse scenario, Bluetooth antenna 31 is used to interact with the handheld device of the inspection personnel, Wi-Fi antenna 32 is used to transmit high-definition monitoring video streams, UWB antenna 33 is used to guide the leveling robot to perform precise path planning and group control collaboration in the warehouse, and LoRa antenna 34 is used to receive weak signals from temperature, humidity and insect monitoring sensors distributed throughout the grain pile.

[0060] like Figure 2 As shown, the two Bluetooth antennas 31 form an angle α, which is 90 degrees, meaning the two Bluetooth antennas 31 are orthogonally arranged. This structural design is closely related to the triangulation mechanism based on angle of arrival (AoA) and channel detection in Bluetooth 6.0.

[0061] In actual positioning, a single linear Bluetooth antenna 31 can only obtain one-dimensional angle, such as the horizontal angle θ. However, by arranging two Bluetooth antennas 31 orthogonally at a 90-degree angle α, the azimuth angle θ and the elevation angle φ can be calculated simultaneously, thereby achieving 360-degree direction finding capability without blind spots in a plane or space.

[0062] Phase difference is the core parameter for angle-of-arrival positioning, and its expression is Δ. = (2πd / λ)·sinθ. When the two Bluetooth antennas 31 are orthogonally arranged, they independently measure the phase difference in different dimensions, which helps to alleviate the angle ambiguity problem commonly found in coaxial arrays. For example, Bluetooth antennas 31 arranged on a single axis have difficulty distinguishing the same phase difference corresponding to θ and 180°-θ, while the orthogonal arrangement improves the uniqueness and stability of angle calculation to a certain extent through the fusion of multi-dimensional phase information.

[0063] Furthermore, Bluetooth operates in the 2.4GHz band, and its signal exhibits linear polarization. The two Bluetooth antennas 31 are positioned at a 90-degree angle α, enabling them to respond to horizontally and vertically polarized electromagnetic wave components respectively, thus creating a polarization diversity effect. In complex metallic environments such as grain silos, multipath reflections are common, and these reflection paths can cause phase distortion or signal fading. Orthogonal polarization reception helps suppress such interference and improves signal robustness.

[0064] From the perspective of antenna mutual coupling, the vertical arrangement of the two Bluetooth antennas 31 makes it easier to control the spacing within half a wavelength. Compared with the parallel arrangement, the degree of mutual coupling is lower and the phase center is more stable, which helps to reduce the angle measurement error caused by coupling and improve the positioning accuracy.

[0065] If only a single Bluetooth antenna 31 is used, a phase difference that can be used for angle of arrival calculation cannot be formed, thus angle measurement cannot be supported. Distance estimation can only rely on Received Signal Strength Indication (RSSI) or channel sounding. This method lacks directional information and cannot achieve triangulation. At the same time, the single linearly polarized Bluetooth antenna 31 is prone to deep fading when facing vertical or lateral incident signals, resulting in signal loss. In addition, RSSI is greatly affected by obstruction, human body absorption, and environmental noise, with a typical positioning error between 3 and 5 meters, which is difficult to meet the sub-meter accuracy required by Bluetooth 6.0.

[0066] Arranging two Bluetooth antennas 31 along the same direction provides one-dimensional angle information in the horizontal direction, but fails to resolve the elevation angle, limiting the positioning dimension. Furthermore, in this arrangement, the phase difference between θ and 180°-θ is the same, causing directional ambiguity and potentially leading to jumps or drifts in positioning results. Additionally, when two Bluetooth antennas 31 employ the same polarization direction and are arranged along the same axis, polarization diversity is lacking. In scenarios with strong reflections or multipath propagation, direct and reflected waves may superimpose or cancel each other, resulting in drastic phase fluctuations and affecting the reliability of angle measurement. Moreover, when two Bluetooth antennas 31 are arranged parallel with a small physical distance, mutual coupling is strong, phase center shift is significant, and gain distribution is uneven, making it difficult to maintain long-term stable performance even after calibration.

[0067] In other words, the two Bluetooth antennas 31 are orthogonally positioned at a 90-degree angle α, constituting the minimum feasible antenna array configuration required for Bluetooth 6.0 angle-of-arrival two-dimensional high-precision positioning. This structure exhibits comprehensive advantages in terms of angular coverage, phase calculation accuracy, polarization diversity, and inter-antenna coupling control. Compared to a single Bluetooth antenna 31 or two Bluetooth antennas 31 arranged in the same direction, it is more applicable and stable in complex monitoring environments such as large grain warehouses.

[0068] The technical solution of this utility model integrates a control module 2, a Bluetooth module 21, a Wi-Fi module 22, a UWB module 23, and a LoRa module 24 through a housing 1. Combined with a Wi-Fi antenna 32, a UWB antenna 33, a LoRa antenna 34, and two Bluetooth antennas 31, it achieves deep fusion of multiple communication protocols within a single micro base station 100. This solves the problem that a single-mode micro base station 100 cannot simultaneously achieve explosion-proof safety, long-distance low-power transmission, and close-range accurate positioning, significantly reducing the deployment complexity of the micro base station 100. Simultaneously, the two Bluetooth antennas 31 are orthogonally arranged at 90 degrees, allowing simultaneous acquisition of the phase difference in the horizontal and vertical directions to calculate the azimuth and elevation angles, achieving 360-degree blind-spot-free direction finding. The orthogonal layout also forms polarization diversity, suppressing multipath interference and reducing antenna mutual coupling, thus improving the accuracy and stability of angle-of-arrival positioning.

[0069] like Figure 2 As shown, in one embodiment, the outer shell 1 includes four sidewalls 1111 connected in sequence and enclosing a rectangular cavity, and corners 1112 are formed at the junctions of adjacent sidewalls 1111.

[0070] Wi-Fi antenna 32, UWB antenna 33 and LoRa antenna 34 are respectively disposed on two opposite side walls 1111 of the outer casing 1;

[0071] Bluetooth antenna 31 is located at corner 1112.

[0072] In this embodiment, the housing 1 includes four sidewalls 1111 that are sequentially connected and enclose a rectangular cavity, providing a regular and stable mounting space for the internal control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24. The four sequentially connected and enclosed sidewalls 1111 enhance the overall structural strength of the housing 1. By placing the Wi-Fi antenna 32, UWB antenna 33, and LoRa antenna 34 on two opposite sidewalls 1111 of the housing 1, the physical spacing between the opposite sidewalls 1111 reduces electromagnetic interference between the Wi-Fi antenna 32, UWB antenna 33, and LoRa antenna 34, which is beneficial for signal decoupling and coverage. By placing the Bluetooth antenna 31 at the corner 1112, and utilizing the corner 1112 formed at the junction of adjacent sidewalls 1111, the staggered layout of the Bluetooth antenna 31 is achieved, optimizing the compactness of the antenna layout on the surface of the housing 1. This allows the Wi-Fi antenna 32, UWB antenna 33, LoRa antenna 34, and Bluetooth antenna 31 to achieve a reasonable spatial distribution between the sidewalls 1111 and the corner 1112 of the housing 1.

[0073] like Figure 2As shown, in one embodiment, the four sidewalls 1111 include a first sidewall 11111, a second sidewall 11112, a third sidewall 11113, and a fourth sidewall 11114;

[0074] The first sidewall 11111 and the third sidewall 11113 are arranged opposite each other along the height direction of the outer shell 1, and the second sidewall 11112 and the fourth sidewall 11114 are arranged opposite each other along the length direction of the outer shell 1;

[0075] The junction of the first sidewall 11111 and the second sidewall 11112 forms a corner 1112, and the junction of the first sidewall 11111 and the fourth sidewall 11114 forms a corner 1112;

[0076] Two Bluetooth antennas 31 are positioned one-to-one at the two corners 1112;

[0077] Wi-Fi antenna 32 is disposed on the first side wall 11111;

[0078] UWB antenna 33 and LoRa antenna 34 are located on the third side wall 11113.

[0079] In this embodiment, the first sidewall 11111 and the third sidewall 11113 are arranged opposite each other along the height direction of the outer shell 1, and the second sidewall 11112 and the fourth sidewall 11114 are arranged opposite each other along the length direction of the outer shell 1, providing a large enclosed space for the control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24. By placing the Wi-Fi antenna 32 on the first sidewall 11111 and the UWB antenna 33 and LoRa antenna 34 on the third sidewall 11113 opposite to the first sidewall 11111, the physical span between the first sidewall 11111 and the third sidewall 11113 along the height direction of the outer shell 1 increases the spatial distance between the Wi-Fi antenna 32, the UWB antenna 33, and the LoRa antenna 34, which helps to reduce electromagnetic coupling between antennas on the same sidewall 1111 and can reduce mutual interference between different communication frequencies.

[0080] By forming a corner 1112 at the junction of the first sidewall 11111 and the second sidewall 11112, or at the junction of the first sidewall 11111 and the fourth sidewall 11114, the structural rigidity of the housing 1 at the intersection of the length and height directions is enhanced. The corner 1112 formed at the junction of adjacent sidewalls 1111 can provide a reference position for the edge layout of the Bluetooth antenna 31, thereby achieving a reasonable layered and partitioned arrangement of the Wi-Fi antenna 32, UWB antenna 33, and LoRa antenna 34 within the limited space formed by the first sidewall 11111, the second sidewall 11112, the third sidewall 11113, and the fourth sidewall 11114.

[0081] like Figure 2 As shown, in one embodiment, the Wi-Fi antenna 32 extends from the first sidewall 11111 along the height direction of the housing 1.

[0082] In this embodiment, three Wi-Fi antennas 32 are provided. These three Wi-Fi antennas 32 are arranged in two rows along the length of the micro base station 100 and staggered along the width of the micro base station 100. The first row has two Wi-Fi antennas 32, and the second row has one Wi-Fi antenna 32. By extending the three Wi-Fi antennas 32 from the first sidewall 11111 along the height of the outer casing 1, the spatial length of the first sidewall 11111 in the height dimension can be fully utilized, providing matching extension space for the physical layout of the Wi-Fi antennas 32. This facilitates reasonable spatial avoidance between the Wi-Fi antennas 32 and the control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24 located within the outer casing 1. Furthermore, by extending the Wi-Fi antennas 32 from the first sidewall 11111 along the height of the outer casing 1, the polarization direction of the Wi-Fi antennas 32 can be aligned with the height direction of the outer casing 1, thereby optimizing the signal radiation characteristics of the Wi-Fi antennas 32 in the horizontal plane.

[0083] like Figure 2 As shown, in one embodiment, the UWB antenna 33 extends from the third sidewall 11113 along the height direction of the housing 1.

[0084] In this embodiment, two UWB antennas 33 are provided. The two UWB antennas 33 are arranged in two rows along the length of the micro base station 100 and staggered along the width of the micro base station 100. One UWB antenna 33 is provided in the first row, and another UWB antenna 33 is provided in the second row. By extending the two UWB antennas 33 from the third sidewall 11113 along the height of the outer casing 1, the spatial length of the third sidewall 11113 in the height dimension can be fully utilized, providing matching extension space for the physical deployment of the UWB antennas 33. This facilitates reasonable spatial avoidance between the UWB antennas 33 and the control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24 located within the outer casing 1. Furthermore, extending the UWB antennas 33 from the third sidewall 11113 along the height of the outer casing 1 helps optimize the signal radiation pattern of the UWB antennas 33, enabling them to better cover the operating space surrounding the micro base station 100.

[0085] like Figure 2 As shown, in one embodiment, the LoRa antenna 34 extends from the third sidewall 11113 along the height direction of the housing 1.

[0086] In this embodiment, three LoRa antennas 34 are provided. These three LoRa antennas 34 are arranged in two rows along the length of the micro base station 100 and staggered along the width of the micro base station 100. The first row has one LoRa antenna 34, and the second row has two LoRa antennas 34. By extending the LoRa antennas 34 from the third sidewall 11113 along the height of the outer casing 1, the spatial length of the third sidewall 11113 in the height dimension can be fully utilized, providing matching extension space for the physical deployment of the LoRa antennas 34. This facilitates reasonable spatial avoidance between the LoRa antennas 34 and the control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24 located within the outer casing 1. Furthermore, extending the LoRa antennas 34 from the third sidewall 11113 along the height of the outer casing 1 ensures that the physical axis of the LoRa antennas 34 is consistent with the height direction of the outer casing 1, which helps optimize the micro base station 100's ability to sense low-frequency, long-distance signals.

[0087] like Figure 2 As shown, in one embodiment, the Bluetooth antenna 31 is tilted from the corner 1112 toward the side away from the central axis of the housing 1.

[0088] In this embodiment, one Bluetooth antenna 31 is located at the corner 1112 formed at the junction of the first sidewall 11111 and the second sidewall 11112, and the other Bluetooth antenna 31 is located at the corner 1112 formed at the junction of the first sidewall 11111 and the fourth sidewall 11114. By tilting the two Bluetooth antennas 31 from the corner 1112 toward the side away from the central axis of the outer casing 1, the outward divergence of the spatial characteristics of the junctions of the first sidewall 11111 and the second sidewall 11112, and the junction of the first sidewall 11111 and the fourth sidewall 11114, can be utilized to provide a radiation environment away from the outer casing 1 for the Bluetooth antennas 31. This helps to reduce the blocking effect of the outer casing 1 on the Bluetooth signal, allowing the Bluetooth antennas 31 to obtain a wider signal transmission and reception environment.

[0089] like Figure 2 As shown, in one embodiment, the micro base station 100 further includes a plurality of interfaces 4, which are respectively disposed on the second sidewall 11112 and the fourth sidewall 11114.

[0090] In this embodiment, by providing multiple interfaces 4 in the micro base station 100, necessary physical connection points are provided for external power supply access and wired data communication. Utilizing the layout of the interfaces 4 located on the second side wall 11112 and the fourth side wall 11114 respectively, the multiple interfaces 4 can be distributed on two opposing side walls 1111 along the length of the outer casing 1, thereby optimizing the wiring flexibility of the micro base station 100 during installation. The placement of the multiple interfaces 4 on the second side wall 11112 and the fourth side wall 11114 helps reduce mutual compression and stacking when external cables are connected, improving the operational convenience of the interface 4 area.

[0091] Furthermore, placing multiple interfaces 4 on the second sidewall 11112 and the fourth sidewall 11114 respectively helps to physically isolate the wired connection area from the antenna area located on the first sidewall 11111 or the third sidewall 11113. Utilizing the spatial layout differences between the sidewalls 1111, the potential impact of external access cables on the antenna radiation characteristics can be reduced, thereby helping to maintain the reliability of multimodal communication of the micro base station 100 in complex environments.

[0092] like Figures 2 to 4 As shown, in one embodiment, the outer casing 1 is further provided with a first opening 101;

[0093] The micro base station 100 also includes a power switch 5 and a sealing head 6. The power switch 5 is electrically connected to the control module 2 and is located at the first opening 101. The sealing head 6 is located at the first opening 101 to seal the first opening 101.

[0094] In this embodiment, a first opening 101 is provided on the housing 1, providing the necessary physical channel for the installation of the power switch 5. The power switch 5 is located in the first opening 101 and electrically connected to the control module 2, enabling external control of the micro base station 100's internal circuitry. A sealing head 6 covers and seals the first opening 101, creating a complete protective barrier for the control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24 inside the housing 1. The sealing effect of the sealing head 6 on the first opening 101 effectively prevents high-concentration dust from the external environment from entering the housing 1 through the first opening 101, thereby reducing the possibility of electrical faults caused by dust contacting the power switch 5 or the control module 2. In other words, the structural design of the sealing head 6 in conjunction with the first opening 101 solves the external operation requirements of the power switch 5 without compromising the overall explosion-proof performance of the housing 1.

[0095] like Figures 2 to 4As shown, in one embodiment, the outer casing 1 includes a housing 11 and tempered glass 12, the control module 2 is disposed inside the housing 11, the housing 11 is provided with a second opening 102, and the tempered glass 12 is disposed over the second opening 102;

[0096] The housing 11 is also provided with an indicator light 7, which is positioned corresponding to the tempered glass 12. The indicator light 7 emits indicator light outward through the tempered glass 12.

[0097] In this embodiment, the outer casing 1 includes a housing 11 and tempered glass 12, providing a physical carrier that balances protection and visibility for the internal control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24. The housing 11 has a second opening 102 covered by the tempered glass 12. The high strength and transparency of the tempered glass 12 are used to seal the second opening 102, which can prevent external dust from entering the interior of the housing 11 while facilitating external observation.

[0098] The indicator light 7 is positioned correspondingly to the tempered glass 12. Utilizing the light-transmitting properties of the tempered glass 12, the operating status information generated by the indicator light 7 can be emitted outwards through the tempered glass 12. This layout allows operators to monitor the operation of the control module 2 and its electrically connected modules in real time by observing the indicator light without disassembling the outer casing 1.

[0099] The design of indicator light 7 emitting light outward through tempered glass 12 achieves visual feedback of the internal electrical signal status while maintaining the overall sealing performance of the housing 11. The physical sealing effect of tempered glass 12 on the second opening 102 helps improve the explosion-proof safety level of the micro base station 100 in complex industrial environments and reduces the risk of electrical spark leakage due to damage to the housing 11.

[0100] like Figures 2 to 4 As shown, in one embodiment, the housing 11 includes a cover 111 and a bottom shell 112. The cover 111 has a mounting cavity 103 and a first mounting port 104 communicating with the mounting cavity 103. The bottom shell 112 has a second mounting port 105 communicating with the first mounting port 104. The bottom shell 112 has a positioning protrusion 113 on the periphery corresponding to the second mounting port 105. The cover 111 has a positioning groove 106 on the periphery corresponding to the first mounting port 104. The positioning groove 106 cooperates with the positioning protrusion 113 to connect the cover 111 and the bottom shell 112.

[0101] In this embodiment, the housing 11 includes a cover 111 and a bottom shell 112. The mounting cavity 103 provided in the cover 111 provides accommodating space for the control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24. The internal space of the cover 111 and the bottom shell 112 is integrated by the docking and communication between the first mounting port 104 and the second mounting port 105.

[0102] By providing positioning protrusions 113 around the periphery of the bottom shell 112 and positioning grooves 106 around the periphery of the cover 111, the geometric fit between the positioning grooves 106 and the positioning protrusions 113 enables rapid alignment and precise positioning of the cover 111 and the bottom shell 112 during connection. This mating structure guides the cover 111 and the bottom shell 112 to a preset relative position, thereby ensuring accurate docking of the first mounting port 104 and the second mounting port 105.

[0103] The engagement of the positioning groove 106 and the positioning protrusion 113 not only enhances the mechanical stability at the connection between the cover 111 and the bottom shell 112, but also extends the physical path for external dust to enter the mounting cavity 103. This interlocking structural feature helps improve the overall sealing strength of the housing 11, thereby reducing the possibility of electrical sparks leaking into the external environment and causing an explosion, and maintaining the physical protection performance of the micro base station 100 in complex dusty environments.

[0104] like Figures 2 to 4 As shown, in one embodiment, a plurality of positioning protrusions 113 are provided, and the plurality of positioning protrusions 113 are spaced apart on the periphery of the second mounting port 105. A plurality of positioning grooves 106 are provided, and the plurality of positioning grooves 106 are spaced apart on the periphery of the first mounting port 104.

[0105] In this embodiment, a multi-point locking structure is formed between the cover 111 and the bottom shell 112 by spaced-apart positioning protrusions 113 around the periphery of the second mounting opening 105 and spaced-apart positioning grooves 106 around the periphery of the first mounting opening 104. This multi-point locking structure allows for more even force distribution between the cover 111 and the bottom shell 112 during connection, preventing edge warping or gaps caused by single-point force application.

[0106] The coordinated cooperation of multiple positioning protrusions 113 and multiple positioning grooves 106 can enhance the mechanical fastening strength of the connection interface between the cover 111 and the bottom shell 112, further improve the overall sealing performance of the shell 11, effectively block the path of external dust into the interior of the shell 11, thereby strengthening the explosion-proof level of the micro base station 100 and reducing the possibility of electrical risks caused by dust intrusion to the internal control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23 and LoRa module 24.

[0107] like Figures 2 to 4 As shown, in one embodiment, the bottom shell 112 is provided with an annular sealing groove 107 around the periphery corresponding to the second mounting port 105, and the annular sealing groove 107 is provided with an annular sealing element 114.

[0108] In this embodiment, when the cover 111 and the bottom shell 112 are connected by the positioning groove 106 and the positioning protrusion 113, the annular seal 114 is squeezed and filled in the gap between the cover 111 and the bottom shell 112, thereby forming a complete annular physical barrier outside the mounting cavity 103.

[0109] By utilizing the deformation compensation capability of the annular seal 114, it can not only effectively prevent high-concentration dust in complex environments such as grain silos from entering the interior of the housing 11, but also prevent electrical sparks generated inside the housing 11 from leaking to external dangerous areas. This enhances the explosion-proof safety characteristics of the micro base station 100 and helps ensure the long-term operational reliability of the internal control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23 and LoRa module 24 in extreme dust environments.

[0110] like Figures 5 to 7 As shown, in one embodiment, the cover 111 has a panel 1113, and the panel 1113 is provided with a second opening 102;

[0111] The bottom shell 112 has a back plate 1121 opposite to the front panel 1113;

[0112] The back panel 1121 is provided with a first mounting member 14, which includes a connector 141 and a mounting body 142. The connector 141 includes two first connecting parts 1411 and a second connecting part 1412 connecting the two first connecting parts 1411. The first connecting parts 1411 extend from the back panel 1121 along the width direction of the outer shell 1, and the second connecting part 1412 extends along the height direction of the outer shell 1. The mounting body 142 is located on the side of the second connecting part 1412 away from the panel 1113.

[0113] In this embodiment, the cover 111 has a panel 1113, and the panel 1113 has a second opening 102, providing a physical channel for the installation of the tempered glass 12 and for the internal indicator light to shine outward. The bottom shell 112 has a back plate 1121 opposite to the panel 1113, which, together with the cover 111, constitutes a sealed cavity for the protection control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24.

[0114] A first mounting member 14 is provided on the backplate 1121 to provide external fixed support for the micro base station 100. A connector 141 extends from the backplate 1121 along the width direction of the outer casing 1 via two first connecting portions 1411, effectively bearing the physical load of the outer casing 1 and internal components. A second connecting portion 1412 extends along the height direction of the outer casing 1 and connects the two first connecting portions 1411, enhancing the structural strength of the first mounting member 14. A mounting body 142 is located on the side of the second connecting portion 1412 facing away from the panel 1113, allowing the mounting body 142 to serve as the connection interface between the micro base station 100 and the external mounting base. This layout utilizes the connector 141 to maintain a preset physical distance between the mounting body 142 and the backplate 1121, forming a heat dissipation channel conducive to airflow, facilitating the dissipation of heat generated by the control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24 during operation to the external environment via the backplate 1121. The suspended support structure formed by the first connecting part 1411 and the second connecting part 1412 optimizes the heat exchange efficiency without increasing the volume of the outer shell 1, which helps to maintain the operational stability of the micro base station 100.

[0115] like Figures 5 to 7 As shown, in one embodiment, the back panel 1121 is provided with a plurality of second mounting members 15, which are inclined from the back panel 1121 toward the side away from the panel 1113 and bend and extend toward the height direction of the housing 1.

[0116] Multiple second mounting pieces 15 are provided at opposite ends of the back plate 1121 along the length direction;

[0117] And / or, a plurality of second mounting pieces 15 are provided at opposite ends of the back plate 1121 along the height direction.

[0118] In this embodiment, by providing multiple second mounting members 15 at opposite ends along the length direction or at opposite ends along the height direction of the back plate 1121, multi-point support can be provided for the micro base station 100. This layout, distributed in the edge area of ​​the back plate 1121, helps to balance the weight distribution of the outer shell 1 and internal components, making the micro base station 100 more evenly stressed during mounting.

[0119] The second mounting element 15 extends from the backplate 1121 away from the panel 1113, bending and extending towards the height of the outer casing 1, forming a hook-like structure with cushioning properties. This inclined and bent geometry creates a gap between the backplate 1121 and the external mounting surface, facilitating heat dissipation from the control module 2, Bluetooth module 21, Wi-Fi module 22, UWB module 23, and LoRa module 24. Simultaneously, this bending and extending arrangement towards the height of the outer casing 1 allows operators to quickly position and securely install the micro base station 100 using hooks in complex environments. The synergistic effect of multiple second mounting elements 15 enhances the physical reliability of the micro base station 100 under vibration or impact conditions.

[0120] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope 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 patent protection scope of the present utility model.

Claims

1. A micro base station, characterized in that, include: The housing contains a control module, a Bluetooth module, a Wi-Fi module, a UWB module, and a LoRa module. The control module is electrically connected to the Bluetooth module, the Wi-Fi module, the UWB module, and the LoRa module, respectively. A Wi-Fi antenna is disposed in the housing and is connected to and electrically connected to the Wi-Fi module; The UWB antenna is located in the housing and is connected to and electrically connected to the UWB module. A LoRa antenna is disposed in the housing and is connected to and electrically connected to the LoRa module; Two Bluetooth antennas are respectively disposed on the housing and connected to and electrically connected to the Bluetooth module; the two Bluetooth antennas are arranged orthogonally.

2. The micro base station as described in claim 1, characterized in that, The outer shell includes four sidewalls that are connected in sequence and enclose a rectangular cavity, with corners formed at the junctions of adjacent sidewalls; The Wi-Fi antenna, the UWB antenna, and the LoRa antenna are respectively disposed on two opposite side walls of the housing; The two Bluetooth antennas are located at the corner.

3. The micro base station as described in claim 2, characterized in that, The four sidewalls include a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall; The first sidewall and the third sidewall are disposed opposite each other along the height direction of the outer shell, and the second sidewall and the fourth sidewall are disposed opposite each other along the length direction of the outer shell; The corner is formed at the junction of the first sidewall and the second sidewall, and the corner is formed at the junction of the first sidewall and the fourth sidewall. The two Bluetooth antennas are positioned one-to-one at the two corners; The Wi-Fi antenna is located on the first side wall; The UWB antenna and the LoRa antenna are located on the third sidewall.

4. The micro base station as described in claim 3, characterized in that, The Wi-Fi antenna extends from the first sidewall along the height direction of the housing; The UWB antenna extends from the third sidewall along the height direction of the housing. The LoRa antenna extends from the third sidewall along the height direction of the housing. The Bluetooth antenna is tilted from the corner toward a side away from the central axis of the housing; And / or, the micro base station further includes multiple interfaces, which are respectively disposed on the second sidewall and the fourth sidewall.

5. The micro base station as described in any one of claims 1 to 4, characterized in that, The outer casing is also provided with a first opening; The micro base station also includes a power switch and a sealing head. The power switch is electrically connected to the control module and is located at the first opening. The sealing head is located at the first opening to seal the first opening.

6. The micro base station as described in any one of claims 1 to 4, characterized in that, The outer casing includes a housing and tempered glass. The control module is located inside the housing. The housing has a second opening, and the tempered glass covers the second opening. The housing is also provided with an indicator light, which is positioned corresponding to the tempered glass, and the indicator light emits its light outward through the tempered glass.

7. The micro base station as described in claim 6, characterized in that, The housing includes a cover and a bottom shell. The cover has a mounting cavity and a first mounting port communicating with the mounting cavity. The bottom shell has a second mounting port communicating with the first mounting port. The bottom shell has a positioning protrusion on its periphery corresponding to the second mounting port. The cover has a positioning groove on its periphery corresponding to the first mounting port. The positioning groove cooperates with the positioning protrusion to connect the cover and the bottom shell.

8. The micro base station as described in claim 7, characterized in that, The bottom shell is provided with an annular sealing groove around the periphery corresponding to the second mounting port, and the annular sealing groove is provided with an annular sealing element.

9. The micro base station as described in claim 7, characterized in that, The cover has a panel, and the panel is provided with the second opening; The bottom shell has a back plate opposite to the front panel; The back panel is provided with a first mounting component, which includes a connector and a mounting body. The connector includes two first connecting parts and a second connecting part that connects the two first connecting parts. The first connecting parts extend from the back panel along the width direction of the outer shell, and the second connecting part extends along the height direction of the outer shell. The mounting body is located on the side of the second connecting part away from the panel.

10. The micro base station as described in claim 9, characterized in that, The back panel is provided with a plurality of second mounting members, which are inclined from the back panel toward the side away from the front panel and bend and extend toward the height direction of the outer shell; Multiple second mounting members are disposed at opposite ends of the back plate along its length; And / or, a plurality of the second mounting members are disposed at opposite ends of the back plate along the height direction.

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