Low-power-consumption wireless gateway based on NB (Narrow Band) Internet of Things technology

Abstract

The utility model discloses a low-power-consumption wireless gateway based on the NB internet of things technology, and belongs to the field of wireless gateways. Comprising a shell, an integrated circuit board is arranged in the shell, and an MCU chip, an NB module, a wireless antenna and an NB antenna are electrically connected to the integrated circuit board; a mounting piece is arranged at the rear end of the shell; a stabilizing assembly is arranged between the mounting piece and the shell; the stabilizing assembly comprises a limiting strip arranged at the rear end of the shell, a mounting strip with a limiting groove is arranged outside the limiting strip in a sliding mode, and the mounting strip is fixedly connected with the mounting piece through a connecting strip. The beneficial effects are that the device employs a micropower wireless communication mode, is not limited by a physical cable, greatly enlarges the use environment, and at the same time, the power consumption of the gateway in a dormant state is not more than microampere, thereby prolonging the service life. According to the device, the installation structure is improved, the shell of the wireless gateway does not need to be punched through the installation structure, the defect of a hook is avoided, installation is very convenient, and only the limiting strip needs to be inserted into the limiting groove.

Description

Technical Field

[0001] The utility model relates to a low-power wireless gateway based on NB-IoT network technology, belonging to the field of wireless gateways. Background Art

[0002] A wireless gateway refers to a wireless AP integrated with a simple routing function, which can also be directly connected to an external network (such as WAN). At the same time, it generally has a wide area network port (WAN), multiple local area network ports (LAN), a wireless local area network access point, and a network address translation function (NAT) to realize the Internet shared access of multiple users.

[0003] The wireless gateway is small in size. To avoid loss, it is generally installed on the wall. Currently, during the installation of the wireless gateway, the base is usually fixed to the wall through screws on the wall. There are hooks on the base, and a connection groove matching the hooks is opened on the outer wall of the wireless gateway, so that the wireless gateway can be directly hung on the hooks for installation. However, during the placement of the wireless gateway, it is easy to accidentally touch it, causing the wireless gateway to become unhooked, making the wireless gateway loose and fall, causing damage to the wireless gateway. Therefore, a mounting method for the wireless gateway and the base is designed to avoid the above situation. Content of the Utility Model

[0004] The purpose of the utility model is to provide a low-power wireless gateway based on NB-IoT network technology, which can effectively solve the above problems.

[0005] In order to solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] It includes a housing, an integrated circuit board is arranged inside the housing, and an MCU chip, an NB module, a wireless antenna, and an NB antenna are electrically connected to the integrated circuit board; an installation part is arranged at the rear end of the housing, and a stabilizing component is arranged between the installation part and the housing; the stabilizing component includes a limiting strip arranged at the rear end of the housing, and an installation strip with a limiting groove is slidably arranged outside the limiting strip, and the installation strip is fixedly connected to the installation part through a connecting strip.

[0007] Further: the number of the limiting strips is two, which are symmetrically arranged up and down on the rear end face of the housing.

[0008] Further: the installation part includes a cross plate, folding plates are arranged at both ends of the cross plate, first threaded holes are arranged on the folding plates, a convex block is arranged in the middle part of the cross plate, a second threaded hole is arranged on the convex block, a first stepped hole is penetrated through the connecting strip, and a first pressing bolt is arranged in the first stepped hole, and the first pressing bolt is threadedly connected to the second threaded hole.

[0009] Further: A second stepped hole is provided on the mounting strip. The inner wall of the small-diameter hole of the second stepped hole is provided with internal threads. A second compression bolt is threadedly connected in the internal threads. A nut is fixed on the end face of the second compression bolt. A hexagonal counterbore is provided in the middle of the nut.

[0010] Further: The number of the second stepped holes is two, and they are symmetrically arranged on both sides of the mounting strip.

[0011] Further: The rear end faces of the mounting strip, the connecting strip, and the folding plate are flush.

[0012] Further: The cross-sectional shape of the limiting strip is an isosceles trapezoid, and the short side of the isosceles trapezoid is fixed on the housing.

[0013] Further: A chamfer is provided at the notch of the limiting groove.

[0014] The beneficial effects are as follows:

[0015] This device adopts a micro-power wireless communication method, without the limitation of physical cables, greatly expanding the usage environment. At the same time, the power consumption of the gateway in the sleep state is only not more than microamperes, improving the service life.

[0016] This device also improves the installation structure. With this installation structure, there is no need to drill holes in the housing of the wireless gateway, and the defects of hooks are also avoided. The installation is very convenient, and only need to insert the limiting strip into the limiting groove;

[0017] Then operate the second compression bolt. When the second compression bolt rotates, it will rotate and advance on the inner wall of the small-diameter hole of the second stepped hole until it presses on the surface of the limiting strip, thus realizing the pressing operation of the limiting strip and making the limiting strip not easy to slide in the limiting groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] For ease of explanation, the present utility model will be described in detail by the following specific embodiments and the accompanying drawings.

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is an exploded view of the present utility model;

[0021] Figure 3 is a sectional view of the second stepped hole of the present utility model;

[0022] Figure 4 is a sectional view of the first stepped hole of the present utility model.

[0023] Description of the reference numerals:

[0024] 1. Housing; 2. Mounting member; 21. Horizontal plate; 22. Folding plate; 23. First threaded hole; 24. Protrusion; 25. Second threaded hole; 3. Stabilizing assembly; 31. Limiting strip; 32. Mounting strip; 33. Limiting groove; 34. Connecting strip; 35. First stepped hole; 36. First pressing bolt; 37. Second stepped hole; 38. Second pressing bolt; 39. Nut; 40. Hexagonal counterbore; 41. Chamfer. Detailed implementation

[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0026] It should be noted that in the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0028] At the same time, in the description of the present utility model, unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Refer to Figures 1-4 This is an embodiment of a low-power wireless gateway based on NB-IoT network technology of the present utility model.

[0030] This wireless gateway mainly involves Narrowband IoT (NB-IoT) technology, which is a low-power wide-area network (LPWAN) technology designed specifically for Internet of Things applications to support cellular data connections of low-power devices in wide-area networks. NB-IoT technology features low power consumption, wide coverage, large connection numbers, and low latency, making it an ideal choice for Internet of Things applications.

[0031] The working principle of NB-IoT technology is based on cellular networks and uses narrowband communication technology, enabling the connection of Internet of Things devices on existing cellular network infrastructure.

[0032] In addition, the NB-IoT network architecture mainly includes several key components such as base stations and core networks. These components work together to ensure the stability and reliability of the NB-IoT network.

[0033] Inside the housing 1 of this device, there is an integrated circuit board, which is electrically connected to an MCU chip, an NB module, a wireless antenna, and an NB antenna.

[0034] The NB module, namely the NB-IoT (Narrowband Internet of Things) module, is mainly used to achieve wide area network communication with low power consumption and low data rate, and is especially suitable for Internet of Things devices that need to run for a long time. The NB-IoT module supports a large number of connections, can achieve long-distance transmission at low power consumption, has a wide coverage range and strong penetration ability, and is suitable for indoor and outdoor environments.

[0035] The NB antenna in this device, namely the Narrowband antenna, is mainly used in low power consumption wide area network (LPWAN) technologies such as NB-IoT (Narrowband Internet of Things) to achieve low power consumption and low rate communication. The role of the NB antenna is to convert electrical signals into electromagnetic waves or convert electromagnetic waves into electrical signals for communication between NB-IoT devices and base stations.

[0036] The MCU chip in this device, namely the Microcontroller Unit chip, is an integrated circuit chip that integrates a microprocessor (CPU), memory (RAM and ROM), input / output interfaces, and other functions on a small chip. The main function of the MCU chip is to process the network data of the wireless gateway and is used in various electronic devices and systems to achieve specific functions and tasks.

[0037] In addition to this, the device is also provided with a new installation structure for the convenience of installing the wireless gateway.

[0038] An installation part 2 is provided at the rear end of the housing 1, and a stabilizing component 3 is provided between the installation part 2 and the housing 1.

[0039] The installation part 2 in this device includes a cross plate 21, with folding plates 22 provided at both ends of the cross plate 21, and first threaded holes 23 provided on the folding plates 22. This is the most commonly used installation structure in the prior art.

[0040] There are two general ways of using it. One way is to fix the wireless gateway on the horizontal plate 21, then attach the folding plate 22 to the wall, align the first threaded hole 23 and drive a bolt into the wall.

[0041] The other way is to fix a hook on the rear end face of the wireless gateway, and then hang the hook on the horizontal plate 21.

[0042] For the first way, it is necessary to use screws to fix the mounting part 2 to the outer shell 1 of the wireless gateway, and threaded holes need to be drilled on the outer shell 1, which affects the overall aesthetics of the device. For the second way, it is necessary to add a hook. If the hook is hung on the horizontal plate 21 and someone accidentally bumps into the wireless gateway, it is possible to directly knock off the wireless gateway.

[0043] Therefore, the present device is provided with a stabilizing component 3. The stabilizing component 3 includes a limiting strip 31 arranged at the rear end of the outer shell 1. An installation strip 32 with a limiting groove 33 is slidably arranged outside the limiting strip 31. The installation strip 32 is fixedly connected to the mounting part 2 through a connecting strip 34.

[0044] A stabilizing component 3 is added between the mounting part 2 and the wireless gateway in the present device. Specifically, a limiting strip 31 is added at the rear end of the outer shell 1, and an additional installation strip 32 with a limiting groove 33 is provided. A connecting strip 34 is fixed on the installation strip 32. Insert the limiting strip 31 into the limiting groove 33, and then fix the connecting strip 34 on the mounting part 2 to complete the fixation of the wireless gateway and the wall.

[0045] Therefore, the present device does not need to drill holes in the outer shell 1, and also avoids the defects of the hook. The installation is very convenient. It only needs to insert the limiting strip 31 into the limiting groove 33. During use, as long as there is no lateral impact, the wireless gateway will not slide out of the installation strip 32.

[0046] The number of the limiting strips 31 is two, which are symmetrically arranged up and down at the rear end face of the outer shell 1.

[0047] This setting is to increase the stability of the installation of the wireless gateway.

[0048] A convex block 24 is arranged in the middle part of the horizontal plate 21 in the present device. A second threaded hole 25 is arranged on the convex block 24. A first stepped hole 35 penetrates through the connecting strip 34. A first pressing bolt 36 is arranged in the first stepped hole 35. The first pressing bolt 36 is threadedly connected to the second threaded hole 25.

[0049] The diameter of the small-diameter hole of the first stepped hole 35 is slightly larger than the diameter of the second threaded hole 25. The connection mode between the connecting strip 34 and the horizontal plate 21 is that the first pressing bolt 36 is screwed into the second threaded hole 25 located in the convex block 24, and at this time the first pressing bolt 36 will press in the first stepped hole 35.

[0050] The mounting strip 32 is provided with a second stepped hole 37. The inner wall of the small-diameter hole of the second stepped hole 37 is provided with internal threads, and a second pressing bolt 38 is threadedly connected in the internal threads. A nut 39 is fixed on the end face of the second pressing bolt 38, and a hexagonal counterbore 40 is provided in the middle of the nut 39.

[0051] In order to fix the limiting strip 31 in the limiting groove 33, the second pressing bolt 38 is adopted in this device; when the second pressing bolt 38 rotates, it will rotate and advance on the inner wall of the small-diameter hole of the second stepped hole 37 until it presses on the surface of the limiting strip 31, so as to perform the pressing operation on the limiting strip 31 on the outside, making it not easy for the limiting strip 31 to slide in the limiting groove 33;

[0052] At the same time, in order to facilitate the rotation of the second pressing bolt 38, a hexagonal counterbore 40 is provided in the nut 39 in this device.

[0053] The number of the second stepped holes 37 is two, and they are symmetrically arranged on both sides of the mounting strip 32.

[0054] With such a setting, the stability of the limiting strip 31 is improved.

[0055] The rear end faces of the mounting strip 32, the connecting strip 34, and the folding plate 22 are flush.

[0056] The purpose of such a setting is also to facilitate being flush with the wall surface. At the same time, the first stepped hole 35 and the second stepped hole 37 in this device are also set in this way.

[0057] The cross-sectional shape of the limiting strip 31 is an isosceles trapezoid, and the short side of the isosceles trapezoid is fixed on the housing 1.

[0058] With such a setting, the tightness during cooperation can be increased, and the stability of the wireless gateway installation can be improved.

[0059] A chamfer 41 is provided at the notch of the limiting groove 33.

[0060] The setting of the chamfer 41 can facilitate the insertion of the limiting strip 31 into the limiting groove 33.

[0061] Obviously, the above-mentioned embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A low-power wireless gateway based on NB IoT technology, characterized by: The invention comprises a housing (1), wherein an integrated circuit board is arranged inside the housing (1), and an MCU chip, a NB module, a wireless antenna, and a NB antenna are electrically connected to the integrated circuit board; a mounting member (2) is arranged at the rear end of the housing (1), and a stabilizing component (3) is arranged between the mounting member (2) and the housing (1); the stabilizing component (3) comprises a limit bar (31) arranged at the rear end of the housing (1), a mounting bar (32) with a limit groove (33) is slidably arranged outside the limit bar (31), and the mounting bar (32) is fixedly connected to the mounting member (2) via a connecting bar (34).

2. The low-power wireless gateway based on NB-IoT technology according to claim 1, characterized in that: The number of the limiting strips (31) is two, which are symmetrically arranged on the rear end surface of the housing (1) in an upper and lower manner.

3. The low-power wireless gateway based on NB-IoT technology according to claim 2, characterized in that: The mounting member (2) comprises a transverse plate (21), folding plates (22) are provided at both ends of the transverse plate (21), a first threaded hole (23) is provided on the folding plate (22), a protrusion (24) is provided at the middle portion of the transverse plate (21), a second threaded hole (25) is provided on the protrusion (24), a first stepped hole (35) passes through the connecting strip (34), a first clamping bolt (36) is provided in the first stepped hole (35), and the first clamping bolt (36) is threadedly connected to the second threaded hole (25).

4. The low-power wireless gateway based on NB-IoT technology according to claim 3, characterized in that: The mounting strip (32) is provided with a second stepped hole (37), the inner wall of the small-diameter hole of the second stepped hole (37) is provided with an internal thread, a second clamping bolt (38) is threadedly connected in the internal thread, a nut (39) is fixed on the end surface of the second clamping bolt (38), and a hexagonal countersunk hole (40) is provided in the middle portion of the nut (39).

5. The low-power wireless gateway based on NB-IoT technology according to claim 4, characterized in that: The number of the second stepped holes (37) is two, which are symmetrically arranged on both sides of the mounting bar (32).

6. The low-power wireless gateway based on NB-IoT technology according to claim 5, characterized in that: The rear end surfaces of the mounting strip (32), the connecting strip (34) and the folding plate (22) are flush.

7. The low-power wireless gateway based on NB-IoT technology according to claim 1, characterized in that: The cross-sectional shape of the limiting strip (31) is an isosceles trapezoid, and the short side of the isosceles trapezoid is fixed on the housing (1).

8. The low-power wireless gateway based on NB-IoT technology according to claim 1, characterized in that: The notch of the limiting groove (33) is provided with a chamfer (41).

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