Communication module based on low-cost compact unmanned aerial vehicle node

Abstract

The utility model discloses a communication module based on a low-cost compact unmanned aerial vehicle node, which solves the problems of large volume and high cost of an unmanned aerial vehicle communication system in the prior art, and comprises a communication chip, an antenna and a data processing unit, and the communication chip is connected with the antenna through an internal circuit to ensure accurate sending and receiving of wireless signals. The communication chip transmits the received data to the data processing unit for processing, and meanwhile, the data processing unit transmits the data needing to be transmitted to the communication chip; the communication module is designed according to the VNX architecture and the VITA74 standard, and it is ensured that the communication module can be seamlessly integrated and cooperatively work with other network system devices. Through the design of the bus protocol of the unmanned aerial vehicle, the communication process is simplified, the number of modules is reduced, redundant modules are removed, and the module cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle communication, and in particular to a communication module based on a low-cost compact unmanned aerial vehicle node. Background Art

[0002] In modern society, drone technology has been widely used, and it plays an important role in military, civil, commercial and other fields. However, there are still some challenges in the autonomous flight and data transmission of drones. Traditional drone communication systems usually require large size and high cost, which limits their application in some specific scenarios.

[0003] However, the existing technologies to solve this problem are costly and often use cables to connect devices. The cables are large and heavy, and have poor anti-interference capabilities. The connected devices are relatively large, with high requirements for heat dissipation. The R&D, procurement and maintenance costs of network equipment are also high, and it is necessary to balance the relationship between cost and performance. The communication of network equipment is usually composed of multiple complex components and systems, which requires a high degree of technical expertise and management experience to maintain and operate, increasing maintenance costs and risks.

[0004] Therefore, a low-cost and compact communication module is needed to improve the efficiency and reliability of UAV communication. Utility Model Content

[0005] The utility model provides a communication module based on a low-cost compact UAV node to solve the technical problems of large size and high cost of UAV communication systems in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The communication module based on the low-cost compact drone node provided in the present application includes a communication chip, an antenna and a data processing unit. The communication chip is connected to the antenna through an internal circuit to ensure the accurate transmission and reception of wireless signals. The communication chip transmits the received data to the data processing unit for processing. At the same time, the data processing unit transmits the data to be sent to the communication chip.

[0008] The communication module is designed in accordance with the VNX architecture and VITA74 standards to ensure that it can be seamlessly integrated and work in coordination with other network system devices.

[0009] Furthermore, the communication module is a part of the chassis, and communicates with other communication modules through the control of the CPU module. The design number of the communication module is defined as VITA74_FC.

[0010] Furthermore, the communication module VITA74_FC mainly expands the FC interface required by the bus network system through the PCIe interface provided by the CPU module, and all input and output interfaces are input and output by the backplane connector.

[0011] Furthermore, the interface includes a PCIe x4 protocol interface from the CPU module input through the backplane, and two mutually redundant FC electrical interfaces output through the backplane.

[0012] Furthermore, the communication module also includes an FPGA small system, which is implemented using FPGA XC7K325T and includes FPGA, program loading FLASH and debugging serial port.

[0013] The communication module of the present invention has the advantages of small size, low cost and high communication efficiency, can meet the communication needs of drones in various scenarios, and improves the reliability and stability of drone communications.

[0014] Beneficial effects achieved by the utility model:

[0015] (1) The utility model provides a communication module based on a low-cost compact UAV node. The communication module adopts the FC optical fiber bus protocol. Compared with cable communication, it has the advantages of larger bandwidth, stronger anti-interference ability, longer distance, smaller size, and lighter weight.

[0016] (2) The communication module based on the low-cost compact UAV node provided by the utility model simplifies the communication process, reduces the number of modules, removes redundant modules, and reduces the module cost through the design of the UAV bus protocol; the reduction of modules is accompanied by a decrease in maintenance costs, which reduces the probability of failure caused by too many modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall block diagram of the communication module of the embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the FPGA chip of the communication module of the embodiment of the utility model.

[0019] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The same or similar numbers correspond to the same or similar parts. The terms describing the positional relationship in the drawings are only used for illustrative purposes and should not be construed as limitations on this patent. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0021] The technical solution of the present utility model is described in detail below in conjunction with the specific drawings.

[0022] like Figure 1-Figure 2 As shown, a communication module based on low-cost compact drone nodes,

[0023] A communication module based on a low-cost compact unmanned aerial vehicle node includes an FPGA chip, a connector, and a clock circuit.

[0024] FPGA chip: responsible for data encoding, decoding and transmission, and is a key component for realizing communication between drone nodes; connector: used to receive and send data signals, ensure data transmission between modules, and ensure that data between drone nodes can be transmitted accurately and quickly; clock circuit: used to generate a stable clock signal to ensure the synchronous operation and correct operation of each circuit inside the device. The stability of the clock signal can ensure the accuracy and stability of data transmission during the communication process. To realize the data transmission and communication functions between drone nodes, the airborne computer based on the VNX architecture of the communication module complies with the VITA74 standard and is used as the control function of the network system equipment. The communication module is part of the chassis and communicates with other communication modules through the control of the CPU module. The design number of the communication module is defined as VITA74_FC.

[0025] The communication module VITA74_FC mainly expands the FC interface required by the bus network system through the PCIe interface provided by the CPU module. All input and output interfaces are input and output by the backplane connector. The main interfaces are: 1 PCIe x4 interface from the CPU module input through the backplane; 2 redundant FC electrical interfaces output through the backplane. It is mainly composed of the FPGA small system, backplane interface, and corresponding power supply, clock and other parts.

[0026] The airborne computer case where the communication module VITA74_FC is located is a Vita74 case, the PCB is a standard Vita74 12.5mm module, the PCB size is 84MM×73MM (length×width), the PCB thickness is 1.6mm, the front height limit is 12mm, and the back height limit is 1mm. The backplane connector of the communication module VITA74_FC selects the miniaturized 4-row, 400-pin high-speed high-density connector ASP-161074-02 produced by Smtec. The FPGA small system is implemented using FPGA XC7K325T. The FPGA small system mainly includes FPGA (field programmable gate array), program loading FLASH, and debugging serial port. FPGA is the core processor responsible for controlling and managing the operation of the entire communication module.

[0027] According to the system's performance evaluation of computer performance and functions, the low-power, high-performance FPGA XC7A35T is selected as the processor. XC7K325T is a high-performance FPGA of Xilinx's 7 series, with 326,080 Logic Cells, 50,950 Slices, 4,000Kb distributed RAM, 16,020Kb block RAM, as well as high-speed IO resources such as PCIe and GTP, with a maximum of 500 available IOs. FPGA provides 1 PCIe interface, supports PCIe EP mode, is introduced from the backplane, and is connected to the PCIe RC provided by the CPU board VITA74_CPU. It is controlled by the CPU board to realize the control and data communication of the FC interface on the expansion board. FPGA provides FC protocol interface through 2 high-speed Serdes interfaces, with adjustable rate, supporting 1.25Gbps, 2.125Gbps, and 4.25Gpbs.

[0028] In practical applications, the appropriate CPU module and PCIe interface can be selected according to the specific needs of the drone node, and connected to the communication module VITA74_FC through the backplane connector. The CPU module controls the communication module through the PCIe interface to realize data transmission and communication functions between drone nodes. At the same time, the FPGA small system can load and debug programs as needed to realize flexible configuration of module functions.

[0029] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A communication module based on a low-cost compact drone node, characterized in that: It includes a communication chip, an antenna and a data processing unit. The communication chip is connected to the antenna through an internal circuit to ensure accurate transmission and reception of wireless signals. The communication chip transmits the received data to the data processing unit for processing. At the same time, the data processing unit transmits the data to be sent to the communication chip. The communication module is designed in accordance with the VNX architecture and VITA74 standards to ensure that it can be seamlessly integrated and work in coordination with other network system devices.

2. A communication module based on a low-cost compact drone node according to claim 1, characterized in that: The communication module is a part of the chassis and communicates with other communication modules through the control of the CPU module. The design number of the communication module is defined as VITA74_FC.

3. A communication module based on a low-cost compact drone node according to claim 2, characterized in that: The communication module VITA74_FC mainly expands the FC interface required by the bus network system through the PCIe interface provided by the CPU module, and all input and output interfaces are input and output by the backplane connector.

4. A communication module based on a low-cost compact drone node according to claim 3, characterized in that: The interface includes a PCIe x4 protocol interface from the CPU module input through the backplane, and two mutually redundant FC electrical interfaces output through the backplane.

5. A communication module based on a low-cost compact drone node according to claim 1, characterized in that: The communication module also includes an FPGA small system, which is implemented using FPGA XC7K325T and includes an FPGA, a program loading FLASH and a debugging serial port.

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