A multi-mode communication terminal for aviation field

Abstract

The utility model discloses a communication terminal supporting modular technology, adapted to a module and a bottom plate of an upper and lower hierarchical structure, which includes a plurality of stacked modules and a back plate, and a cover plate and a connecting screw rod to form a chassis as a whole. The module is mainly composed of a module frame, a printed circuit board assembly, and an electrical connector. The module frame and the printed circuit board assembly are connected by screws, and the modules are positioned and electrically connected by a back plate. The entire structure is fixed with screws and connected with a long screw rod; wherein the module has an electrical connector directly facing the outside, and the module frame has a corresponding chip slot. The utility model is an aviation multi-mode communication terminal with a modular design, which is easy to maintain, light in weight, moderate in rigidity, and good in stability.

Description

Technical Field

[0001] The utility model relates to the field of aviation mechanical structures, in particular to a multi-mode communication terminal used in the aviation field. Background Art

[0002] As we all know, the most important thing during the flight of an aircraft is safety, and accurate and stable data is an important factor affecting safety. Aviation communications are communications specially established to ensure aviation flight. The use of aviation communication systems runs through the entire process of aircraft takeoff, cruising, combat and landing. It is an essential equipment to ensure flight safety and complete combat missions. During the flight of an aircraft, whether aviation communications can provide it with important data such as pressure, climate, and environment to ensure the accuracy of navigation and the stability of data between land and air is very important. Once an information failure occurs, it is very likely to cause tragic consequences. Therefore, aviation information work must take safety as the most basic requirement to improve the reliability, stability and high speed of aviation flight.

[0003] Aviation wireless communication refers to the process of wireless information transmission by aircraft with the help of communication equipment, which can quickly transmit important dynamics and information during the flight process, including flight dynamics, air traffic control, aviation business information, etc., to avoid flight safety accidents. The technical problems and difficulties that aviation communication needs to solve include: communication distance constraints, communication rate constraints, communication protocol constraints, communication cost constraints, system integration constraints, physical environment constraints, etc., and the resulting inconvenient assembly, difficult maintenance, poor stability, poor electromagnetic compatibility performance and other problems. Utility Model Content

[0004] The utility model aims at the deficiencies and defects of the existing technology and provides a multi-mode communication terminal supporting modular technology. Aiming at the problems faced by industry applications, such as complicated communication links, different communication protocols, complicated cabin equipment, and limited working environment, the utility model aims at the application requirements of high-precision positioning and navigation, real-time communication support, high-speed data transmission, and intelligent decision-making and command, with low cost, generalization, miniaturization, and lightweight as the design goals, to build a three-dimensional communication network of satellites, aircraft, and ground stations, integrating high-speed self-organizing network big data communication, 5G mobile communication, RTK high-precision positioning and navigation, RDSS Beidou short message, and ADS-B aviation broadcast communication and other communication technologies, providing aviation data communication, collection, sharing, analysis, display and other services, and realizing all-weather, all-round, and all-day communication support.

[0005] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0006] A multi-mode communication terminal for use in the aviation field comprises a module and a base plate of an upper and lower hierarchical structure, wherein the multi-mode communication terminal is stacked as a whole by stacking modules, and then sequentially assembled according to the base plate, stacked modules and cover plate, and each layer is fixed with screws, and then the whole is connected with long screws to form a chassis as a whole; wherein the module is composed of a module frame, a printed board assembly and an electrical connector, the module frame and the printed board assembly are connected with screws, the electrical connector is located on the module frame, and the modules are positioned with a backplane; wherein the module has an electrical connector directly facing the outside, and the module frame has a corresponding chip slot.

[0007] In a preferred embodiment of the utility model, the module includes a self-organizing network communication link, a 4G / 5G public network communication link, an RTK differential high-precision positioning link, a Beidou-3 short message communication link, an aviation ADS-B broadcast communication link, an integrated control center and a power adapter part. The components are fixed in the module frame through a printed circuit board, and the exchange of data and communication signals and power supply are completed through an electrical connector.

[0008] In a preferred embodiment of the present invention, the terminal includes a power supply system of a DC power supply and a matching converter, which supplies power to each communication module after DC conversion.

[0009] In a preferred embodiment of the utility model, the electrical connector includes a flangeless connector with external threads and internal needles and a multi-core bent pin interface; wherein, the flangeless connector SMA-K with external threads and internal needles is responsible for communication; the 37-core bent pin connector J30J-37ZK is responsible for the image data and flight control data interface; and the 9-core bent pin connector J30J-9ZK is responsible for the 28V power supply interface.

[0010] In a preferred embodiment of the present invention, the printed circuit board is made of glass fiber reinforced plastic FR4.

[0011] In a preferred embodiment of the present invention, the corresponding chip slot on the module frame supports loading a SIM card or an SD card at the same time.

[0012] In a preferred embodiment of the present invention, the casing material of the terminal device is selected from materials with relatively stable performance in the environment and resistant to environmental radiation.

[0013] In a preferred embodiment of the utility model, in order to enhance the heat dissipation capability, the terminal device has an outer surface that is black anodized, and its emissivity is greater than or equal to 0.88; the device adopts a heat dissipation fin plus forced air cooling method to improve the thermal stability of the single machine.

[0014] The beneficial effects of the utility model are:

[0015] The utility model realizes the structural design of aviation multi-mode communication terminal, which is divided into multiple modules and bottom plates that realize functions independently according to the upper and lower hierarchical structures, and has the characteristics of easy maintenance, light weight, and medium rigidity. The equipment can realize different expected functions through different modules, including but not limited to self-organizing network communication, two-way information transmission between the dedicated self-organizing network and the ground command center, including images and telemetry information sent by the aircraft, and command and control information sent by the ground; 4G / 5G public network communication, two-way information transmission between the 4G / 5G mobile network and the ground command center; RTK differential high-precision positioning, by receiving satellite navigation positioning system and ground-based enhanced signals for differential decomposition, to achieve centimeter-level precise positioning; Beidou III short message communication, providing short message communication services through the L-band and S-band links of the GEO satellite in the Beidou constellation; aviation ADS-B broadcast communication, broadcasting the ADS-OUT message of its own aircraft, receiving the ADS-B IN message broadcast by other aircraft, and comparing the received ADS-B IN message with the aircraft's own ADS-B The OUT message is transmitted to the ground command center through the self-organizing network, 4G / 5G public network, and Beidou-3 short message communication link; the integrated control center is responsible for data interface interaction with external devices, processing and distribution of image telemetry and command and control data, and comprehensive control and management of the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that for the sake of clarity and ease of description, the drawings are not necessarily drawn to scale.

[0017] Figure 1 The utility model is a block diagram of the aviation multi-mode communication terminal.

[0018] Figure 2 It is a two-dimensional structural diagram of the aviation multi-mode communication terminal of the utility model.

[0019] Figure 3 The three-dimensional structure diagram of the aviation multi-mode communication terminal of the utility model.

[0020] Figure 4 The three-dimensional structural exploded view of the aviation multi-mode communication terminal of the utility model.

[0021] Figure 5 The three-dimensional structural diagram of the aviation multi-mode communication terminal bottom plate of the utility model.

[0022] Figure 6This is a three-dimensional structural exploded view of the aviation multi-mode communication terminal 0-10 of the utility model.

[0023] Figure 7 This is a three-dimensional structural exploded view of the aviation multi-mode communication terminal 0-20 of the utility model.

[0024] Figure 8 This is a three-dimensional structural exploded view of the aviation multi-mode communication terminal 0-30 of the utility model.

[0025] The numbers in the figure are as follows: 1: 0-10 module cover; 2: 0-10 module; 3: 0-20 module; 4: 0-30 module; 5: bottom plate; 6: M3 round head screw; 7: M3 nut; 8: M3 gasket; 9: SIM card small cover; 10: SD card small cover; 11: M1.6 countersunk screw; 12: M3 round head screw; 13: M3 nut; 14-20 and 24-28: connector SMA-K, flangeless with external thread and internal needle; 21: M3 countersunk screw; 22: connector J30J-37ZK, 37-core curved needle; 23: connector J30J-9ZK, 9-core curved needle. 29: Bottom plate; 30: PCB of 0-30 module; 31: Frame of 0-30 module; 32: Cover of 0-30 module; 33: PCB of 0-20 module; 34: Frame of 0-20 module; 35: Cover of 0-20 module; 36: PCB of 0-10 module; 37: Frame of 0-10 module; 38 and 39: Two 28V to 12V DCDC converters; 40: Cover of 0-10 module; 41: PCB of 0-10 module; 42: Frame of 0-10 module; 43 and 44: Two 28V to 12V DCDC converters; 45: Connector J30J-37ZK, 37-pin curved pin, image data and flight control data interface; 46: Connector J30J-9ZK, 9-pin bent pin, 28V power interface; 47: Cover of 0-10 module; 48 and 49: Connector SMA-K, external thread and internal pin without flange; 50: PCB of 0-20 module; 51: Frame of 0-20 module; 52: Cover of 0-20 module; 53-55: Connector SMA-K, external thread and internal pin without flange; 56-59: Connector SMA-K, external thread and internal pin without flange; 60 and 61: Connector SMA-K, external thread and internal pin without flange; 62: PCB of 0-30 module; 63: Frame of 0-30 module; 64: Cover of 0-30 module; 65: Connector SMA-K, external thread and internal pin without flange. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below.

[0027] Example 1

[0028] See also Figure 1-8 A communication terminal supporting modular technology is shown, which is adapted to an upper and lower hierarchical structure of 0-10 modules, 0-20 modules, 0-30 modules and a base plate, which includes multiple stacked modules and a back plate, and a cover plate and M3 connecting screw combination 1, 6 to form a chassis as a whole. The module is mainly composed of a module frame, a printed circuit board assembly, and an electrical connector. The module frame and the printed circuit board assembly are connected with M2 screws, and the modules are positioned and electrically connected with a back plate. The entire structure is fixed with M3 screws 6 and then connected into one with long screws.

[0029] The aviation integrated communication equipment consists of seven modules: power adapter, integrated control center, RTK differential high-definition positioning link, aviation ADS-B broadcast communication link, self-organizing network communication link, 4G / 5G public network communication link, and Beidou III short message communication link. The 28V power supply provides 12V DC power to the control center and all modules through two DCDC DC converters; the integrated control center is connected to all functional modules through control lines and data lines. The overall structural dimensions of the aviation multi-mode communication terminal are: 216.0mm×160.0mm×78.4mm. Figure 3As shown, 1 is a 0-10 module cover, 2 is a 0-10 module, 3 is a 0-20 module, 4 is a 0-30 module, and 5 is a base plate. The size of the 0-10 module is: 216.0mm×160.0mm×27.0mm; the size of the printed circuit board in the 0-10 module is: 161.0mm×155.0mm×1.6mm; the size of the cover in the 0-10 module is: 182.0mm×160.0mm×2.0mm; the size of the frame in the 0-10 module is: 216.0mm×160.0mm×26.0mm; the size of the 0-20 module is: 216.0mm×160.0mm×21.0mm; the size of the printed circuit board in the 0-20 module is: 161.0mm×155.0mm×1.6mm; the size of the cover in the 0-20 module is: 163.6mm×157.6mm×11.5mm; The size of the frame in the block is: 216.0mm×160.0mm×21.0mm; the size of the 0-30 module is: 216.0mm×160.0mm×23.7mm; the size of the printed circuit board in the 0-30 module is: 161.0mm×155.0mm×1.6mm; the size of the cover plate in the 0-30 module is: 163.8mm×157.8mm×4.7mm; the size of the frame in the 0-30 module is: 216.0mm×160.0mm×21.0mm; the size of the bottom plate is: 216.0mm×160.0mm×12.1mm; the sizes of the two small cover plates are: 33.6mm×13.2mm×0.6mm and 28.3mm×13.2mm×0.6mm respectively.

[0030] The small SIM card cover plate 9 and the small SD card cover plate 10 which are convenient for taking and placing are located in the middle of the module frames of the 0-20 module and the 0-30 module.

[0031] like Figure 3 As shown, 6 is an M3 round head screw, 7 is an M3 nut, 8 is an M3 gasket, 11 is an M1.6 countersunk screw, 12 is an M3 round head screw, 13 is an M3 nut, 14-20 and 24-28 are connectors SMA-K, which are flangeless connectors with external threads and internal needles, 21 is an M3 countersunk screw, 22 is connector J30J-37ZK, 37-core bent needle, and 23 is connector J30J-9ZK, 9-core bent needle.

[0032] like Figure 4As shown, from left to right, 29 is the base plate, 30 is the printed circuit board of the 0-30 module, 31 is the frame of the 0-30 module, 32 is the cover of the 0-30 module, 33 is the printed circuit board of the 0-20 module, 34 is the frame of the 0-20 module, 35 is the cover of the 0-20 module, 36 is the printed circuit board of the 0-10 module, 37 is the frame of the 0-10 module, 38 and 39 are two 28V to 12V DCDC DC / DC converters, and 40 is the cover of the 0-10 module. The cover of the 0-10 / 0-20 / 0-30 module is fixed to one side of the frame of the 0-10 / 0-20 / 0-30 module by M3 countersunk screws, and the printed circuit board of the 0-10 / 0-20 / 0-30 module is fixed to the other side of the frame of the 0-10 / 0-20 / 0-30 module by M2.5 flat head screws. The 0-10 module, 0-20 module, 0-30 and the bottom plate are first fixed by inlay buckles, and then the M3 long screw is passed through the mounting hole, and the two ends of the long screw are fixed with M3 nuts.

[0033] Figure 5 This is a three-dimensional structural diagram of the aviation multi-mode communication terminal base plate of an embodiment of the utility model.

[0034] like Figure 6 As shown, in the 0-10 module, 41 is the printed circuit board of the 0-10 module, 42 is the frame of the 0-10 module, 43 and 44 are two 28V to 12V DCDC DC / DC converters, and 47 is the cover of the 0-10 module. 48 and 49 are SMA-K connectors, which are flangeless with external threads and internal needles and are used for the RTK differential high-definition positioning antenna interface. 45 is the J30J-37ZK connector, with 37-pin bent needles, which is the image data and flight control data interface. 46 is the J30J-9ZK connector, with 9-pin bent needles, which is a 28V power supply interface. The module is equipped with two DCDC DC / DC converters. The 0-10 module realizes RTK differential high-definition positioning link communication and power supply. Figure 7 As shown, in the 0-20 module, 50 is the printed circuit board of the 0-20 module, 51 is the frame of the 0-20 module, and 52 is the cover of the 0-20 module. 60 and 61 are SMA-K connectors, which are flangeless with external threads and internal pins and are used for data link communication, 56-59 are SMA-K connectors, which are flangeless with external threads and internal pins and are used for public network communication, and 53-55 are SMA-K connectors, which are flangeless with external threads and internal pins and are used for Beidou short message communication. The 0-20 module realizes Beidou three-generation short message communication link communication, 4G / 5G public network communication link communication, and self-organizing network communication link communication.

[0035] like Figure 8As shown, in the 0-30 module, 62 is the printed circuit board of the 0-30 module, 63 is the frame of the 0-30 module, and 64 is the cover of the 0-30 module. 65 is the connector SMA-K, which is a flangeless connector with external threads and internal pins and is used for ADS-B communication. The 0-30 module realizes the aviation ADS-B broadcast communication link communication.

[0036] The modules are separated by a printed plate of fiberglass FR4 and fixed on the bottom plate as a whole. According to the terminal thermal design requirements and the working environment of the single machine, the heat dissipation of the single machine uses components and parts with strong heat-resistant capabilities, and materials with relatively stable performance and tolerance to environmental radiation in the use environment; the outer surface of the single machine is black anodized, and its emissivity is greater than or equal to 0.88 to enhance the heat dissipation capacity; strengthen the local heat dissipation design, and choose a reasonable heat conduction path; the casing material of the equipment is 2A12.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-mode communication terminal for aviation, comprising a module and a base plate of an upper and lower hierarchical structure, characterized in that: The multi-mode communication terminal is composed of stacked modules, which are then assembled in sequence according to the bottom plate, stacked modules, and cover plate. Each layer is fixed with screws, and the whole is connected with long screws to form a whole chassis; The module consists of a module frame, a printed circuit board assembly, and an electrical connector. The module frame and the printed circuit board assembly are connected with screws. The electrical connector is located on the module frame, and the modules are positioned with a backplane.

2. A multi-mode communication terminal for aviation according to claim 1, characterized in that The module includes a self-organizing network communication link, a 4G / 5G public network communication link, an RTK differential high-precision positioning link, a Beidou III short message communication link, an aviation ADS-B broadcast communication link, an integrated control center and a power adapter. The components are fixed in the module frame through a printed circuit board, and the exchange of data and communication signals and power supply are completed through an electrical connector; Among them, self-organizing network communication, two-way information transmission between the aircraft and the ground command center, including images and telemetry information sent by the aircraft, and command and control information sent by the ground; 4G / 5G public network communication, two-way information transmission between the 4G / 5G mobile network and the ground command center; RTK differential high-precision positioning, by receiving satellite navigation positioning system and ground-based augmentation signals for differential analysis, to achieve centimeter-level precise positioning; Beidou-3 short message communication, providing short message communication services through the L-band and S-band links of GEO satellites in the Beidou constellation; aviation ADS-B broadcast communication, broadcasting the ADS-OUT message of its own aircraft, receiving the ADS-B IN message broadcast by other aircraft, and transmitting the received ADS-B IN message and the aircraft's own ADS-B OUT message to the ground command center through the self-organizing network, 4G / 5G public network, and Beidou-3 short message communication link; the integrated control center is responsible for data interface interaction with external devices, processing and distribution of image telemetry and command and control data, and comprehensive control and management of modules.

3. A multi-mode communication terminal for aviation according to claim 1, characterized in that: The terminal includes a power supply system of a direct current power supply and a matching converter, which supplies power to each communication module after DC conversion.

4. A multi-mode communication terminal for aviation according to claim 1, characterized in that: The electrical connector includes a flangeless connector with an external thread and an internal needle and a multi-core bent needle interface; wherein the flangeless connector with an external thread and an internal needle is used for communication; and the multi-core bent needle interface is an image data and flight control data interface and a power supply interface.

5. A multi-mode communication terminal for aviation according to claim 1, characterized in that: The corresponding chip slot on the module frame supports loading a SIM card or an SD card at the same time.

6. A multi-mode communication terminal for use in the aviation field according to claim 1, characterized in that: The surface of the multi-mode communication terminal casing is anodized, and its emissivity is greater than or equal to 0.88.

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