Wireless equipment positioner mounting structure

Abstract

The utility model relates to the technical field of vehicle-mounted communication, in particular to a wireless equipment locator mounting structure which is suitable for a wireless equipment locator based on Beidou and 4G and assists the wireless equipment locator in better completing communication tasks between military vehicles. According to the scheme, the wireless equipment locator installation structure comprises a body shell and an installation assembly, the body shell is in a big-end-down inverted-T shape, and the installation assembly is located at the bottom of the body shell and used for installing a wireless equipment locator on the outer top face of a vehicle. The body shell comprises an upper shell and a lower shell; a radio frequency unit and an antenna unit layer plate of the wireless equipment positioner are arranged in the upper shell; a 4G signal processing unit layer plate, a Beidou signal processing unit layer plate and a power interface management unit layer plate of the wireless equipment positioner are arranged in the lower shell; the upper shell and the lower shell are integrally formed; an aviation plug protruding out of the outer surface of the lower shell is arranged at the joint of the lower shell and the external interface of the power interface management unit and used for data transmission and feed of the wireless equipment positioner.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted communication, in particular to an installation structure of a wireless device locator. Background Art

[0002] Communication technology is one of the most critical technologies in modern warfare, and a large number of communication equipment are widely used in various military equipment to ensure the orderly and effective execution of various military activities. The wireless device locator involved in this application is a vehicle-mounted wireless communication device developed for military vehicle networking management and message transmission, which fully utilizes the advantages of the wide coverage and high reliability of the Beidou-3 system and the low latency and high speed of the 4G network, and the high security of the military mobile communication encryption technology it adopts. The device can realize the real-time, efficient and safe transmission of various types of information between military vehicle networks in extreme battlefield environments such as mountainous areas and deserts.

[0003] In view of the need to send and receive 4G and Beidou satellite signals in various extreme environments, as well as the installation and use requirements of other vehicle-mounted equipment, the wireless device locator involved in this application is usually placed on the top surface of the vehicle. This means that when designing the appearance structure of the wireless device locator, it is necessary not only to consider the feasibility of its own shell structure, but also to consider the overall structure of the shell and the impact of its installation on the external structure of the entire vehicle.

[0004] The existing wireless device locator has the shape of a straight cylindrical body with equal width at the top and bottom. The following printed circuit boards are arranged in order of increasing height of the cylinder: 4G signal processing unit layer board, Beidou signal processing unit layer board, power interface management unit layer board, radio frequency unit layer board, antenna unit layer board. The straight cylindrical wireless device locator is adsorbed on the outer top surface of the vehicle with 8 strong magnetic patches on the chassis of its shell. At the same time, there are mounting holes on the convex edge of the chassis for screw installation.

[0005] The existing wireless device locator has an outer height of 161mm and an installation height of up to 163mm. For various types of military vehicles, the lower the height of the vehicle, that is, the better the passability, the higher the flexibility and safety when performing military activities. In addition, strong magnetic patches only have an adsorption effect on vehicle shells made of some magnetic metal materials containing iron, nickel, cobalt and other components. Military vehicle shells made of other non-magnetic materials, such as aluminum alloy, have no adsorption effect and need to be installed by screwing screws, which is time-consuming and labor-intensive. Furthermore, when using the strong magnetic patch connection method, it is also necessary to consider the interference of the patch's magnetic strength and use position on the whole machine signal and certain electronic components, which increases the workload of product design and testing.

[0006] In summary, we need a wireless device locator housing and installation structure that can make the whole vehicle more passable, and achieve convenient, stable and interference-free installation and disassembly with a better overall size of the whole machine. Utility Model Content

[0007] In view of the defects in the housing and installation structure of the existing wireless device locator, the utility model further improves the vehicle's passability and provides a more universal and convenient installation and disassembly structure. By improving the internal structure dimensions of the whole machine, the optimal external structure dimensions are obtained, and a rotating installation structure with the roof is designed. The technical solutions adopted by the utility model are as follows:

[0008] A wireless device locator installation structure includes a main body shell and an installation component. The main body shell is in the shape of a "convex" character with a small top and a large bottom. The installation component is located at the bottom of the main body shell and is used to install the wireless device locator on the top surface outside the vehicle.

[0009] The main body shell comprises an upper shell and a lower shell, and the upper shell and the lower shell have a smooth transition and are integrally formed.

[0010] Furthermore, the antenna unit layer board of the wireless device locator is fixed by screws in the upper shell; the RF unit layer board, the power interface management unit layer board, the Beidou signal processing unit layer board and the 4G signal processing unit layer board of the wireless device locator are fixed by screws from top to bottom in the lower shell.

[0011] It should be noted that, since the wireless device locator is installed on the roof, it is necessary to compress its final installation height as much as possible to improve the passability of the vehicle. Of course, the smaller the size of the peripheral installation equipment, the more benefits it will bring. The inventor, in combination with various factors such as the implementation conditions of the prior art and the use requirements of this device, decided to start with optimizing the antenna vibrator, and to design the optimal size while ensuring its reliable function and stable performance. At the same time, replace the large-sized devices inside the device, and select small-sized devices for replacement while ensuring functional performance. Through the above research and debugging, the size and shape structure of the outer shell of the wireless device locator in this solution were finally obtained.

[0012] Considering that the wireless device locator is used in an open-air environment, in order to make the shell simpler and more stable and prevent water seepage, the upper and lower shells are formed in one piece. In addition, the main shell material should be made of aluminum alloy and stainless steel with high strength and corrosion resistance. The surface of aluminum alloy can be naturally oxidized to form a protective film with good weather resistance. Stainless steel has high corrosion resistance, excellent tensile strength and temperature tolerance. In view of its special use field, the shell surface should not be too smooth, and it must be sprayed with military automotive paint, or sprayed with diffuse reflective concealed color paint according to the appearance of the corresponding military vehicle.

[0013] Furthermore, an aviation plug is provided at the external interface connection between the lower shell and the power interface management unit. The aviation plug protrudes from the outer surface of the lower shell and is used for data transmission and power feeding between the wireless device locator and the local device.

[0014] It should be noted that the data transmission and power feeding interface is not suitable for using a conventional serial port connection plug due to its usage scenario. Therefore, an aviation plug with excellent waterproof, dustproof, leak-proof, misconnection-proof, vibration-resistant, and extreme environmental change-resistant properties is selected.

[0015] Preferably, the mounting assembly includes a fixing seat and a card connector, the fixing seat is connected to the top surface outside the vehicle, and the card connector is connected to the bottom of the lower shell, and cooperates with the fixing seat to fix the wireless device locator to the top surface outside the vehicle.

[0016] Preferably, the fixing seat is two sections of centrosymmetrical arc tracks, and the clamping joint is a pair of transverse short bars respectively arranged at the two ends of the outer side surface of the bottom of the lower shell.

[0017] It should be noted that the fixing seat and the top surface outside the vehicle can be connected by welding, gluing, or other connection methods, so as to ensure firmness.

[0018] Preferably, a limiting portion is provided at the end of the circular arc track, and the limiting portion is used to fix the clamping joint on the circular arc track to prevent it from sliding unintentionally on the circular arc track.

[0019] Preferably, the limiting portion comprises a limiting groove and a spring buckle. The limiting groove is located on the lower bottom surface of the track, and the spring buckle is located directly above the limiting groove and protrudes from the upper bottom surface of the track.

[0020] It should be noted that the clamping joint slides into the limit groove and the spring buckle through the track to achieve the limit effect. An elastic component is set on the limit part, for example: a flexible material layer is attached to the contact surface between the limit groove and the clamping joint, or a spring connection is set between the bottom of the limit groove and the fixed seat. A flexible material layer can also be attached to the bottom of the main body shell, and then combined with the spring buckle in contact with the upper part of the clamping joint, it can buffer the impulse of the military vehicle vibration on the wireless device locator to a greater extent, and reduce the possibility of damage caused by vibration impact.

[0021] Compared with other fixing methods such as straight rail clamping or spring buckle plug-in, the arc track sliding clamping method is not easy to fall off due to vibration and has better stability because the matching track has a certain length and needs to rotate in a fixed direction.

[0022] The material of the mounting assembly can be high-strength polymer, alloy, or stainless steel, and its appearance requirements are the same as those of the above-mentioned main body shell.

[0023] The beneficial effects of the utility model are:

[0024] First, by adjusting the internal structure of the equipment, the original three-layer shell was optimized into a two-layer shell, which reduced the overall height and outer diameter of the equipment, improved the vehicle's passability and stability after installation, and reduced the amount of shell material used.

[0025] Second, the installation components are designed to achieve fast and stable rotational installation and disassembly, avoiding the tediousness of screw installation, the non-universality of magnetic installation, and the workload of anti-interference debugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0027] Figure 1 : Schematic diagram of the whole machine installation structure;

[0028] Figure 2 : Front view of wireless device locator;

[0029] Figure 3 : Top view of wireless device locator;

[0030] Figure 4 : Front view of the whole machine installation;

[0031] Figure 5 : Top view of the whole machine installation;

[0032] Figure 6 : Side view of the whole machine installation;

[0033] Figure 7 : Schematic diagram of the fixed seat structure;

[0034] Figure 8 : Movement intention of the fixed seat spring buckle.

[0035] The names of the components corresponding to the numbers in the figure are as follows: 1 main body shell; 11 upper shell; 12 lower shell; 2 aviation plug; 3 installation assembly; 31 fixing seat; 32 card joint; 33 limiting part; 321 positioning cover; 331 limiting groove; 332 spring buckle. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "front end", "back end", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0038] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "assemble" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] [Example 1]

[0040] like Figure 1 , 4 As shown in Figures 5 and 6, a wireless device locator installation structure includes a main body shell 1 and an installation component 3. The main body shell 1 is in the shape of a "convex" character with a small top and a large bottom. The installation component 3 is located at the bottom of the main body shell 1 and is used to install the wireless device locator on the top surface outside the vehicle.

[0041] The main body shell 1 comprises an upper shell 11 and a lower shell 12. The upper shell 11 and the lower shell 12 of this embodiment are both cylindrical and integrally formed, and the junction thereof is smoothly transitioned.

[0042] The antenna unit layer board of the wireless device locator is fixed by screws in the upper shell 11; the RF unit layer board, the power interface management unit layer board, the Beidou signal processing unit layer board, and the 4G signal processing unit layer board of the wireless device locator are fixed by screws in the lower shell 12 from top to bottom.

[0043] Based on the existing technology and the use requirements of the wireless device locator on military vehicles, the applicant adjusted and improved its internal structure to obtain a more excellent shell structure size. The specific process is as follows:

[0044] First, the upper shell is improved. The antenna unit layer in the upper shell consists of a reflector, a laminated vibrator (B3, B2b, S, L frequency points), and a 4G vibrator. The reflector size in the antenna unit layer is reduced from a diameter of 180 mm to a diameter of 140 mm, and the maximum outer diameter of the laminated vibrator is reduced from 95.2 mm to 85 mm. The reduced antenna unit layer is simulated and verified, and the simulation results are shown in Tables 1 and 2:

[0045] Table 1 Reflection surface diameter: 180mm

[0046]

[0047] Table 2 Reflection surface diameter: 140mm

[0048]

[0049]

[0050] From the data in the above table, we can see that we reduced the diameter of the reflective surface from 180mm to 140mm, and all simulation data can meet the index requirements. The specific change is that the antenna vertex gain will decrease, but the antenna low elevation gain will increase. From the perspective of use, especially for short message transceiver functions, the gain at low elevation angles is more important. Therefore, it is feasible to reduce the diameter of the adjusted antenna unit layer from 180mm to 140mm. After that, the upper shell is adaptively improved according to the size of the improved antenna unit layer. The size is adjusted from 180mm in diameter and 55mm in height to 140mm in diameter and 51.5mm in height. The antenna unit layer is still fixed to the upper shell with screws. At the same time, the upper shell and the lower shell are changed to an integrated molding design, which not only simplifies the structure but also greatly improves the waterproof performance of the entire wireless device locator.

[0051] Secondly, the lower shell is improved. The lower shell is equipped with a radio frequency unit layer board, a power interface management unit layer board, a Beidou signal processing unit layer board and a 4G signal processing unit layer board from top to bottom.

[0052] First, the 4G signal processing unit layer board was improved, the reserved interface in the 4G signal processing unit layer board was removed, and the standard RJ45 network port was changed to a small horizontal push-in plug-in, the power supply 12V was changed to 5V, and the redundant voltage conversion circuit was removed. The size of the 4G signal processing unit layer board in the original wireless device locator was 100mm*100mm*45mm, and the size of the improved 4G signal processing unit layer board was 114mm*61mm*8.5mm, and the installation method is still screw fixing.

[0053] A small horizontal push-in plug-in is added to the power interface management unit layer board to connect with the 4G signal processing unit layer board. At the same time, the 12V conversion circuit that supplies power to the 4G signal processing unit layer board is changed to a 5V conversion circuit. The design of the remaining hardware circuits remains unchanged, and the size is adaptively improved according to the size of the lower shell.

[0054] The Beidou signal processing unit layer board design remains unchanged.

[0055] According to the improved installation layout of the 4G signal processing unit layer board, the power interface management unit layer board and the Beidou signal processing unit layer board, the maximum outer diameter of the lower shell is adjusted to 169mm.

[0056] The size of the upper shell is reduced, so the size of the connection between the lower shell and the upper shell is also adjusted to 140mm. The lower shell is adjusted to a "convex" structure with an upper diameter of 140mm, a lower diameter of 169mm, and a height of 62.5mm.

[0057] The RF unit layer board is installed on the top of the lower shell, and the size is adaptively modified according to the lower shell, and the size changes from diameter 171mm*thickness 25mm to 110mm*15mm.

[0058] In this embodiment, the improved main body shell 1 has a total height of 114 mm, the upper shell 11 accounts for 1 / 3 of the total height, and the lower shell 12 accounts for 2 / 3 of the total height; the outer diameter of the upper shell 11 is 140 mm, and the outer diameter of the lower shell 12 is 169 mm. The above dimensions are significantly reduced compared with those before the improvement, which greatly improves the vehicle's passability.

[0059] An aviation plug 2 is provided at the connection between the lower shell 12 and the external interface of the power interface management unit, and the aviation plug 2 protrudes from the outer surface of the lower shell 12. The aviation plug used in this embodiment is J599 / 20JD35SN of AVIC Optronics Technology Co., Ltd., which has an operating temperature range of -65°C to +175°C and has good sealing, salt spray resistance, and moisture and heat resistance.

[0060] The mounting assembly 3 includes a fixing seat 31 and a clamping joint 32. Figure 1-6 As shown, the fixing seat 31 of the present embodiment is two sections of centrosymmetrical circular arc tracks, which are glued to the top surface outside the vehicle, and in order to make the adhesive connection more firm, a fan-shaped adhesive surface is added to the lower bottom surface of the circular arc track; the clamping joint 32 is a pair of horizontal short bars protruding from the two ends of the outer side surface of the bottom of the lower shell, and in order to prevent the equipment from shaking back and forth along the direction of the clamping joint 32 after installation, a positioning cover 321 tangent to the outer wall of the circular arc track is added to the outside of the clamping joint 32.

[0061] like Figure 1 , 4 As shown in Figures 6, 7 and 8, a limiting portion 33 is provided at the end of the arc track, and the limiting portion 33 includes a limiting groove 331 and a spring buckle 332. The limiting groove 331 is located on the lower bottom surface of the arc track, and the spring buckle 332 is located directly above the limiting groove 331 and protrudes from the upper bottom surface of the arc track. The inner surface of the limiting groove 331 matches the outer surface of the clamping joint 32, and the contact surface between the spring buckle 332 and the clamping joint 32 is a slope surface with a lower front and a higher rear.

[0062] like Figure 1 , 7 As shown in FIG. 8 , the card connector 32 on the housing of the wireless device locator slides in through the entrance of the arc track. After the slope surface of the spring buckle 332 contacts the card connector 32, it will rise as the card connector 32 slides backward until the card connector 32 slides into the limiting groove 331. The slope surface of the spring buckle 332 cuts on the card connector 32 to complete the limiting effect. When the wireless device locator needs to be removed, lift it up and rotate it outward at the same time. When the card connector 32 leaves the limiting groove 331 and enters the slide rail, it can be rotated out.

[0063] In this embodiment, a rubber layer is provided on the inner surface of the limiting groove 331, a rubber pad is attached to the bottom of the main body shell 1, and a spring buckle 332 is used to greatly buffer the impact of vehicle vibration on the wireless device locator.

[0064] In this embodiment, a wireless device locator installation structure, in addition to the materials mentioned above, is made of aluminum alloy, and after polishing, surface oxidation treatment and other process flows, it has anti-mildew, anti-humidity, and anti-salt spray properties. The entire device has undergone low temperature tests, high temperature tests, damp heat tests, salt spray tests, rain tests, and mold tests. After the tests, the device structure is not damaged, and the device surface is free of rust, mildew, coating peeling, burrs, cracks, etc. The device function is reliable and the performance is stable.

[0065]

Application Cases

[0066] 1) Preparation

[0067] The operator deploys the wireless device locator of Example 1, hereinafter referred to as the device, on the roof of a military vehicle (troop carrier, armored vehicle, fire truck, ambulance, special transport vehicle, etc.), ensures that there is no obstruction around it, plugs in the cable, connects to the customer display and control terminal, configures relevant information (vehicle license plate number, vehicle number, vehicle type, driver and passenger, fuel quantity information, fuel consumption information, etc.) and submits it.

[0068] The device acting as the command terminal is connected to the command terminal display and control center, logs in to the command terminal platform software, checks the reported vehicle information, groups the vehicles, and assigns the roles of the vehicles in the group (pilot vehicle, command vehicle, follower vehicle, etc.).

[0069] 2) Simulation training

[0070] After the command-end equipment is organized, it sets marking points (rest points, checkpoints, warning points, target points), electronic fences, and electronic fence restricted vehicle information. After the client device receives the marking point information, the convoy sets out in sequence. The pilot vehicle autonomously selects the optimal route to the target point based on the guide line (if there is an offline vector map, the route can be planned and navigation can be performed). The follower vehicle and the command vehicle advance according to the received trajectory of the pilot vehicle. The command-end equipment operator views the vehicle situation information on the command-end platform software. The command-end equipment can issue task information at any time during driving. After receiving the information, the client device automatically broadcasts and displays the information content.

[0071] When a vehicle passes through a marked point (rest point, checkpoint, warning point, target point), it will automatically report the marked point it has reached to the command end device. The command end device forms a vehicle trajectory based on the location information reported by the client device and can be played back for viewing.

[0072] 3) Special situation handling

[0073] Alerts

[0074] When the client vehicle encounters an emergency and needs to request support during driving, click the client software to issue an alarm. The client device will first send location information and personnel information to the command device. The platform software of the command device will emit a buzzer alarm and pop up an alarm message to remind the command device operator that there is an emergency that needs to be handled. The operator checks the alarm message and communicates with the client device through the 4G network (the command device can view the on-site situation through video connection without the consent of the client device) to quickly determine the situation and issue support orders to nearby vehicle equipment.

[0075] Triggering the Geo-Fence

[0076] The command end device sets up an electronic fence to restrict vehicles from entering or leaving the area. When a vehicle triggers the electronic fence, the platform software of the command end device pops up an alarm message and displays the vehicle information that triggered the electronic fence.

[0077] Vehicles left behind

[0078] The command end device sets the lagging warning distance. When the distance between the command vehicle and the following vehicle in the convoy and the pilot vehicle is greater than the lagging warning distance, the platform software of the command end device displays that the vehicle has fallen behind, and the display and control terminal of the client device broadcasts the vehicle lagging warning voice.

[0079] It should be clear that the above detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A wireless device locator installation structure, comprising a body shell and an installation component, characterized in that: The main body shell is in the shape of a "convex" character with a small top and a large bottom, including an upper shell and a lower shell. The upper shell and the lower shell have a smooth transition and are integrally formed. The installation component is located at the bottom of the main body shell and is used to install the wireless device locator on the top surface outside the car.

2. A wireless device locator installation structure according to claim 1, characterized in that: The installation assembly includes a fixing seat and a card connector. The fixing seat is connected to the top surface outside the vehicle. The card connector is connected to the bottom of the lower shell and cooperates with the fixing seat to fix the wireless device locator on the top surface outside the vehicle.

3. A wireless device locator installation structure according to claim 2, characterized in that: The fixing seat comprises two sections of centrosymmetric tracks, and a limiting portion for limiting the position of the clamping joint is provided at the end point of each track.

4. A wireless device locator installation structure according to claim 3, characterized in that: The card joint is a short horizontal bar that matches the track.

5. A wireless device locator installation structure according to claim 4, characterized in that: The track is a circular track.

6. A wireless device locator installation structure according to claim 3, characterized in that: The limiting part comprises a limiting groove and a spring buckle, wherein the limiting groove is located on the lower bottom surface of the track, and the spring buckle is located directly above the limiting groove and protrudes from the upper bottom surface of the track.

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