Structure of unmanned aerial vehicle-mounted broadband ad hoc network terminal machine
By optimizing the structural design of the UAV-borne broadband self-organizing network terminal, the problems of inconvenient board installation and difficult maintenance have been solved, achieving efficient heat dissipation, modular installation and high-speed data interaction, thus improving the maintainability and applicability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN GUOKE RUICHENG ELECTRONIC TECH CO LTD
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-10
AI Technical Summary
The installation and maintenance of the board for the UAV-borne broadband self-organizing network terminal are inconvenient, and the existing enclosure size is large, which makes installation and maintenance difficult.
A structure including a chassis, air vents, a powerful exhaust fan, a connector slot, and connector ears was designed. It adopts a modular design and an efficient heat dissipation solution, utilizes the high-speed resources inside the FPGA to achieve high-speed data interaction, and uses a high-precision clock module to ensure system stability.
It enables convenient installation and maintenance of the circuit boards, improves the maintainability and flexibility of the equipment, ensures stable operation of the equipment under high-temperature conditions and the real-time and accurate transmission of data, and enhances the applicability and space utilization efficiency of the equipment.
Smart Images
Figure CN224111181U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of switch box structure, specifically is a structure of unmanned aerial vehicle broadband ad hoc network terminal. BACKGROUND
[0002] The unmanned aerial vehicle broadband ad hoc network terminal is a set of system equipment integrating network control, wave control and signal processing, which is installed on an airborne platform for use. It is usually composed of multiple board cards and a box body, and the existing box body is large in size, and there are problems of inconvenient board card installation and inconvenient maintenance. UTILITY MODEL CONTENT
[0003] The utility model aims at providing a structure of unmanned aerial vehicle broadband ad hoc network terminal to solve the problems of inconvenient board card installation and inconvenient maintenance.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a structure of unmanned aerial vehicle broadband ad hoc network terminal, comprising: a case body and a plurality of board cards arranged in the case body, the top plate and the bottom plate of the case body are provided with air vents, a strong exhaust fan is arranged on the bottom plate of the case body, a plug-in slot for mounting the board cards is arranged on the inner surface of the rear plate of the case body, the board cards are vertically inserted into the plug-in slot, the front plate of the case body is hollowed out at the upper part and detachably mounted with a closure plate for board card installation, and a control panel is mounted at the lower part.
[0005] As a further improvement of the above technical scheme:
[0006] The board cards include a power supply board, a network control board, a wave control zero DBF board, a signal processing board and an interface control board, the wave control zero DBF board and the signal processing board are both 2 pieces, the wave control zero DBF board and the signal processing board are connected with the interface control board, and the interface control board is connected with the network control board.
[0007] An upwardly recessed structure is arranged on the bottom plate, and the strong exhaust fan is arranged above the upwardly recessed structure.
[0008] A plurality of connecting ears are arranged at the lower part of the case body.
[0009] The case body is 4U, the height of the board card mounting area is 3U, and the height of the strong exhaust fan mounting area is 1U.
[0010] Supporting feet are arranged at the lower part of the case body.
[0011] The network control board comprises an FPGA main control chip, a DDR3, a navigation module, a clock circuit and an eMMC, and the FPGA main control chip adopts a Zynq ZC7100 type FPGA.
[0012] The interface control board comprises an FPGA master control chip, a DDR3, a navigation module, a high-precision clock module and an eMMC, and the FPGA master control chip adopts a Zynq ZC7100 type FPGA.
[0013] The signal processing board comprises a Virtex-7 series master control chip and a Zynq 7000 series master control chip.
[0014] Compared with the prior art, the unmanned aerial vehicle broadband self-organizing network terminal structure has the advantages that:
[0015] Efficient heat dissipation design: through the design of strong exhaust fan and air passage, forced air cooling is realized, the internal temperature of the equipment is effectively reduced, the stable operation of each module under high temperature working condition is ensured, and the service life of the equipment is prolonged.
[0016] Modular design: standard VPX module size is adopted, each functional module is independently designed, installation, replacement and maintenance are facilitated, and the maintainability and flexibility of the equipment are improved.
[0017] High-speed data interaction: the internal high-speed 10x GTX and 20x LVDS resources of the FPGA are utilized, the Aurora protocol is adopted, high-speed data interaction with other boards is realized, and the real-time performance and accuracy of data transmission are ensured.
[0018] High-precision clock: constant temperature crystal oscillator and PLL circuit are adopted to generate high-precision clock, the stability and accuracy of system clock are ensured, and the overall system performance is improved.
[0019] Flexible fixing mode: the connecting ears at the lower part of the case body are designed, the position and quantity can be adjusted according to requirements, the fixing with different installation platforms is facilitated, and the applicability of the equipment is enhanced.
[0020] Optimized space utilization: the case body adopts 4U design, the board installation area and the strong exhaust fan installation area are reasonably divided, the heat dissipation effect is ensured, and the internal space utilization is maximized.
[0021] Comprehensive functional modules: including power board, networking control board, wave control zero DBF board, signal processing board and interface control board, the comprehensive functional requirements of unmanned aerial vehicle broadband self-organizing network are realized.
[0022] In summary, the unmanned aerial vehicle broadband self-organizing network terminal structure has the advantages of reasonable structure design, comprehensive functions, efficient heat dissipation and convenient maintenance, and has remarkable beneficial effects. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a front view structural schematic diagram of the utility model;
[0024] Figure 2 is a side view structural schematic diagram of the utility model;
[0025] Figure 3 is a bottom view structural schematic diagram of the utility model;
[0026] Figure 4 is a three-dimensional structural schematic diagram of the utility model;
[0027] Figure 5 is a functional module overall connection block diagram of the utility model;
[0028] Figure 6 is a system clock topology diagram of the utility model;
[0029] Figure 7 is a networking control module block diagram of the utility model;
[0030] Figure 8 is an interface control module block diagram of the utility model;
[0031] Figure 9 is a signal processing module block diagram of the utility model;
[0032] Figure 10 is a whole machine cold plate temperature cloud distribution diagram of the utility model;
[0033] Figure 11 is a case internal temperature flow field trajectory cloud diagram of the utility model.
[0034] The drawing mark: 1, the case body;11, the air passage;12, the strong exhaust fan;13, the plug-in slot;14, the connecting lug. Specific implementation
[0035] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.
[0036] In the description of the utility model, it needs to be explained that the orientation or position indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, a particular orientation and operation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicative or implied relative importance.
[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0038] 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 protection scope of the present utility model.
[0039] like Figures 1 to 4 As shown, the structure of the UAV-borne broadband self-organizing network terminal in this embodiment includes: a chassis 1 and several circuit boards disposed within the chassis 1. The top and bottom plates of the chassis 1 have air vents 11. A forced-draft fan 12 is disposed on the bottom plate of the chassis 1. A connector slot 13 for circuit board installation is provided on the inner surface of the rear plate of the chassis 1. The circuit boards are inserted into the connector slot 13 perpendicular to the bottom plate of the chassis 1. The upper part of the front plate of the chassis 1 is hollowed out and detachably fitted with a sealing plate for circuit board installation; a control panel is installed at the lower part. An upwardly recessed structure is provided on the bottom plate, and the forced-draft fan 12 is positioned above this structure. Several connecting ears 14 are provided at the lower part of the chassis 1. The connecting ears 14 are used to fix the chassis to the mounting platform, and their position and number can be adjusted according to requirements. The chassis 1 is 4U in height, with the circuit board installation area being 3U in height and the forced-draft fan installation area being 1U in height. Support feet are provided at the lower part of the chassis 1. When the chassis is placed on a flat surface, adding support feet to the bottom can significantly improve heat dissipation. Forced air cooling is characterized by high airflow, low air pressure, and relatively uniform airflow distribution. Its high velocity also reduces thermal resistance across the convective boundary layer. The forced exhaust fan 12 is a cylindrical axial flow fan. Because the airflow direction at its inlet and outlet is parallel to the axis, it boasts high airflow, low air pressure, minimal tip leakage, and high efficiency.
[0040] The thickness of the chassis 1 does not exceed 5HP. The control panel on the front panel of the equipment is designed with a power interface and a switch. The entire equipment is cooled by air. Cooling air is drawn in from the lower front of the equipment through the exhaust fan 12 and finally exhausted from the upper rear of the equipment.
[0041] The backboard has 7 plug-in slots 13, and the leftmost slot is a power supply slot with a width of 5HP; the right 6 slots are VPX board slots, all with a width of 5HP. The board cards include a power supply board, a networking control board, a wave control zero DBF board, a signal processing board and an interface control board, and the wave control zero DBF board and the signal processing board are both 2 pieces. The wave control zero DBF board and the signal processing board are connected with the interface control board, and the interface control board is connected with the networking control board.
[0042] As shown in Figure 5 , to meet the high-speed communication of the FPGA and other board cards, the internal high-speed 10x GTX and 20x LVDS resources of the FPGA are selected, the high-speed communication protocol is Aurora protocol, 8B / 10B encoding, 5Gbps line rate, which is connected with the high-speed backboard to realize high-speed data interaction with other board cards. Each functional module adopts standard VPX module size. The clock module mainly generates high-precision clock. For the clock stability in the index of ±0.01ppm, a constant temperature crystal oscillator is used as the starting source, and a series of PLL circuit, driving circuit, etc. This part of the function is realized in the form of a module, which is conducive to reuse and replacement at any time. The clock of the system is mainly generated by the high-precision clock module, and then output to each module. The specific clock topology design is shown in Figure 6 .
[0043] As shown in Figure 7 , the networking control board includes an FPGA main control chip, a DDR3, a navigation module, a clock circuit and an eMMC, and the FPGA main control chip adopts Zynq ZC7100 type FPGA. The networking control module is designed based on Xilinx Zynq 7000 series FPGA, mainly composed of FPGA, DDR3, navigation module, clock circuit and eMMC, etc. Zynq ZC7100 type FPGA is adopted, and the peripheral design is expanded. The PS end is externally connected with DDR3, eMMC, network port, serial port, etc. The PL end is connected with the input of the navigation module and the clock module, as well as JTAG, GPIO and other commonly used interfaces, GTX and LVDS differential pairs, etc. Through the VPX connector, it is connected with the high-speed backboard to realize normal communication with other modules.
[0044] As shown in Figure 8As shown, the interface control board includes an FPGA master chip, a DDR3, a navigation module, a high-precision clock module and an eMMC, and the FPGA master chip adopts a Zynq ZC7100 type FPGA. The interface control module is designed based on a Zynq 7000 series FPGA of the Xilinx company, and is mainly composed of an FPGA, a DDR3, a high-precision clock module, an eMMC and the like. A Zynq XC7100 type FPGA is adopted, and peripheral design is expanded, a DDR3, an eMMC, a network port, a serial port and the like are externally hung at the PS end, a gigabit network port is separately externally hung to the front panel, the input of the high-precision clock module is connected to the PL end, and common interfaces such as JTAG and GPIO are connected, and differential pairs such as GTX and LVDS are interconnected with a high-speed backplane through a VPX connector, so as to realize normal communication with other modules.
[0045] As shown in Figure 9 , the signal processing board includes a Virtex-7 series master chip and a Zynq 7000 series master chip. The signal processing board adopts a standard 3U VPX board size, and the core chip selects a Virtex-7 series and a Zynq 7000 series FPGA of the Xilinx company, and other peripheral circuits are designed around the two FPGAs.
[0046] As shown in Figure 10 , it is a temperature cloud distribution of the whole machine cold plate, and as shown in Figure 11 , it is a temperature flow field trajectory cloud diagram in the case. As shown in the upper figure, the highest temperature of the cold plate is 91.9℃, which appears on the power board. The excessively high temperature is an important reason for device failure, and the analysis focuses on the highest temperature of each module under high temperature conditions, which can reflect various temperature conditions during work. The simulation calculation result shows that under the existing thermal design measures, the highest temperature that can be reached by all modules under extreme high temperature working conditions can meet the highest temperature use requirement of the device.
[0047] The above-mentioned is only an embodiment of the present application, and the well-known specific structure and characteristics and the like in the scheme are not described too much herein. For those skilled in the art, it is obvious that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
Claims
1. A structure of an unmanned aerial broadband ad hoc network terminal, characterized by comprising: The application relates to a cabinet body (1) and several boards arranged in the cabinet body (1), wherein the top plate and the bottom plate of the cabinet body (1) are provided with air passing openings (11), the bottom plate of the cabinet body (1) is provided with a strong exhaust fan (12), the inner surface of the rear plate of the cabinet body (1) is provided with plug-in slots (13) for mounting the boards, the boards are vertically inserted into the plug-in slots (13) of the bottom plate of the cabinet body (1), the upper part of the front plate of the cabinet body (1) is hollow and detachably mounted with a closing plate for mounting the boards, and the lower part is mounted with a control panel. The boards comprise a power supply board, a network control board, a wave control zero DBF board, a signal processing board and an interface control board, the wave control zero DBF board and the signal processing board are both two, the wave control zero DBF board and the signal processing board are connected with the interface control board, and the interface control board is connected with the network control board.
2. The structure of unmanned aerial broadband ad hoc network terminal according to claim 1, characterized in that: The bottom plate is provided with an upwardly recessed structure, and the strong exhaust fan (12) is arranged above the upwardly recessed structure.
3. The structure of unmanned aerial broadband ad hoc network terminal according to claim 2, characterized in that: The lower part of the cabinet body (1) is provided with several connecting ears (14).
4. The structure of unmanned aerial broadband ad hoc network terminal according to claim 1, characterized in that: The cabinet body (1) is 4U, the height of the board mounting area is 3U, and the height of the strong exhaust fan mounting area is 1U.
5. The structure of unmanned aerial broadband ad hoc network terminal according to claim 1, characterized in that: The lower part of the cabinet body (1) is provided with supporting pads.
6. The structure of unmanned aerial broadband ad hoc network terminal according to claim 1, characterized in that: The network control board comprises an FPGA main control chip, a DDR3, a navigation module, a clock circuit and an eMMC, and the FPGA main control chip adopts a Zynq ZC7100 type FPGA.
7. The structure of unmanned aerial broadband ad hoc network terminal according to claim 2, characterized in that: The interface control board comprises an FPGA main control chip, a DDR3, a navigation module, a high-precision clock module and an eMMC, and the FPGA main control chip adopts a Zynq ZC7100 type FPGA.
8. The structure of unmanned aerial broadband ad hoc network terminal according to claim 2, characterized in that: The signal processing board comprises a Virtex-7 series main control chip and a Zynq 7000 series main control chip.
9. The structure of unmanned aerial broadband ad hoc network terminal according to claim 2, characterized in that: