A mission system design method based on multi-bus architecture

Abstract

The present invention belongs to the technical field of aircraft control design, and discloses a task system design method based on a multi-bus architecture, designs a system message from a source to a destination, designs multiple transmission channels, and then distributes the system message to different transmission channels through a channel allocation method; the transmission channels include two types, one is a transmission channel from a source to a task management computer MMC through a communication link, and the other is a transmission channel from the task management computer MMC to a destination. The method of the present invention The task system message design method based on a multi-bus architecture of the present invention is agile and flexible, facilitates the upgrade and improvement of the task system and rapid expansion, and greatly improves the integration, maintenance and expansion capabilities of the task system.

Description

Technical Field

[0001] The present invention belongs to the technical field of aviation vehicle control design, and relates to a design method for an aircraft mission system, and in particular to a design method for a mission system based on a multi-bus architecture. Background Art

[0002] Aircraft missions are completed through message transmission. The traditional system message design method adopts a segmented design method, designing independent system messages for two communication nodes respectively, and the system messages are tightly coupled with the physical network.

[0003] like Figure 1 A typical multi-bus architecture task design method is shown. In order to realize the ground control station controlling the visible light camera CCD, it is necessary to design system messages from the ground station through four communication links, namely CDL, UDL, KDL, and SDL to the task management computer MMC based on RS-422 bus communication, and system messages from the task management computer MMC to the visible light camera CCD based on 1553B bus communication. The process is relatively cumbersome and the designed system message blocks are also complex and diverse. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a task system design method based on a multi-bus architecture, which only requires designing a system message directly from the source to the destination, greatly improving the efficiency of task system design.

[0005] The technical solution of the present invention is:

[0006] A task system design method based on a multi-bus architecture designs a system message from a source to a destination, designs multiple transmission channels, and then distributes the system message to different transmission channels through a channel allocation method; the transmission channels include two categories, one is a transmission channel from the source to a task management computer MMC through a communication link, and the other is a transmission channel from the task management computer MMC to the destination.

[0007] Further, the source is a ground station.

[0008] Further, the purpose is the mission load or aircraft control system. For UAVs, a ground station is used to control the aircraft and its mission load.

[0009] Furthermore, there are four communication links, namely CDL communication link, UDL communication link, KDL communication link and SDL communication link. These are also all the communication links currently used by drones.

[0010] Furthermore, when designing system messages, on the one hand, we design system messages, and on the other hand, we design the transmission channels of various system messages. Designing system messages and transmission channels separately, the transmission channels are relatively fixed and limited, so it does not require too much effort, and focusing on designing system messages can greatly improve design efficiency.

[0011] Furthermore, when modifying a system message, the system message that needs to be modified is modified without modifying its transmission channel allocation. Therefore, the task system modification efficiency of the design method is extremely high.

[0012] Furthermore, when upgrading, improving and expanding the system, new system messages are added and designed, and then a transmission channel is allocated for the new system messages. Therefore, the efficiency of upgrading, improving and expanding the task system of this design method is extremely high.

[0013] Furthermore, the mission management computer MMC is an onboard computer with mission payload control instruction relay and comprehensive mission management functions.

[0014] The advantages of the present invention are:

[0015] The task system message design method based on the multi-bus architecture of the present invention is agile and flexible, and is convenient for upgrading, improving and rapidly expanding the task system. If it is necessary to subsequently expand the control instructions of task equipment such as CCD cameras, at least five system message blocks need to be changed by using the traditional system design method, while only one system message block needs to be changed by using the new task system design method, which greatly improves the integration, maintenance and expansion capabilities of the task system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a traditional multi-bus architecture task system design method of the background technology of the present invention;

[0017] Figure 2 It is a schematic diagram of a multi-bus architecture task system design method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] This section is an embodiment of the present invention, which is used to explain and illustrate the technical solution of the present invention.

[0019] A task system design method based on a multi-bus architecture designs a system message from a source to a destination, designs multiple transmission channels, and then distributes the system message to different transmission channels through a channel allocation method; the transmission channels include two categories, one is a transmission channel from the source to a task management computer MMC through a communication link, and the other is a transmission channel from the task management computer MMC to the destination.

[0020] Among them, the source is the ground station, and the target is the mission payload or aircraft control system. For UAVs, the ground station is used to control the aircraft and its mission payload. There are four communication links, namely CDL communication link, UDL communication link, KDL communication link and SDL communication link. These are also all the communication links currently used by UAVs. The mission management computer MMC has the functions of mission payload control command relay and comprehensive mission management.

[0021] When designing system messages, we need to design system messages on the one hand and design the transmission channels of various system messages on the other hand. Designing system messages and transmission channels separately is a relatively fixed and limited process, so it does not require too much effort. Focusing on designing system messages can greatly improve design efficiency.

[0022] When modifying the system message, the system message that needs to be modified is modified without modifying its transmission channel allocation. Therefore, the task system modification efficiency of this design method is extremely high.

[0023] When upgrading, improving and expanding the system, new system messages are added and designed, and then transmission channels are allocated for the new system messages. Therefore, the efficiency of upgrading, improving and expanding the task system of this design method is extremely high.

[0024] Another embodiment of the present invention is described below with reference to the accompanying drawings.

[0025] Figure 2 It is a schematic diagram of the task system message design method based on the multi-bus architecture of the present invention, taking the ground station controlling the visible light camera CCD as an example.

[0026] It is only necessary to design a system message directly from the source (ground station) to the destination (CCD), and then allocate the system message to different transmission channels through the channel allocation method. One type of channel is the transmission channel from the ground station to the MMC through four communication links (CDL, UDL, KDL, SDL) based on RS-422 bus communication, and the other type of channel is the transmission channel from the MMC to the CCD based on 1553B bus communication. The new multi-bus architecture mission system design method makes the system message block design simple and clear, greatly reduces the number of system message blocks, and after the channel allocation is completed once, there is no need to repeat the design in the subsequent upgrade, improvement and expansion process, which greatly improves the efficiency of mission system design.

[0027] During the design process, on the one hand, messages are designed, and on the other hand, transmission channels for various messages are designed. Therefore, when modifying a message, only one message needs to be modified, and there is no need to modify the transmission channel allocation.

[0028] Therefore, this design method enables system messages to go directly from the source to the destination, realizing cross-node and cross-physical network application message design. Intermediate node devices are only responsible for forwarding messages and realizing message relay / routing functions. General system messages are independent of the physical network and are easy to transplant and upgrade.

[0029] The present invention proposes a system message design based on "source to destination" for the hybrid architecture of multiple buses such as 1553B, RS-422, RS-485, 1394B, Ethernet, etc. for UAVs, which frees the mission system design from the constraints of physical networks and application protocols, improves the agility of mission system design and the rapidity of comprehensive tests, facilitates the integration, maintenance and expansion of mission systems, and greatly reduces the cost of upgrading and improving mission systems. This technology has been successfully applied in the design process of mission systems for multiple types of UAVs.

Claims

1. A task system design method based on a multi-bus architecture, characterized in that: Design a system message from the ground station to the destination, design multiple transmission channels, and then distribute the system message to different transmission channels by means of channel distribution; There are two types of transmission channels: one is the transmission channel from the ground station to the mission management computer MMC through the communication link, and the other is the transmission channel from the mission management computer MMC to the destination based on the 1553B bus communication; The stated purpose is mission payload or aircraft control system; There are four communication links, namely CDL communication link, UDL communication link, KDL communication link and SDL communication link; When designing system messages, on the one hand, we design system messages, and on the other hand, we design the transmission channels for various system messages; When modifying a system message, modify the system message that needs to be modified without modifying its transmission channel allocation; When upgrading, improving and expanding the system, new system messages are added and designed, and then transmission channels are allocated to the new system messages.

2. The method for designing a task system based on a multi-bus architecture according to claim 1, characterized in that: The mission management computer MMC is an onboard computer with mission load control instruction relay and comprehensive mission management functions.

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