阅读说明：本技术 一种即插即用演示验证平台 (Plug-and-play demonstration verification platform ) 是由 赵孟娟 耿欢 赵剑平 张少卿 王言伟 于 2019-11-29 设计创作，主要内容包括：本申请涉及一种即插即用演示验证平台,属于飞机航电技术领域,所述平台包括：至少一个具有即插即用接口的设备,其中所述设备包括用于演示预定功能的演示设备和用于采集预定信号的采集设备中的一种或几种；数据处理装置,用于演示所述演示设备的功能或显示所述采集设备的采集信号；以及平台总线,所述平台总线用于连接所述设备和所述数据处理装置。本申请的即插即用演示验证平台能够实现即插即用在航电系统中的验证。(The application relates to a plug-and-play demonstration verification platform belongs to aircraft avionics technology field, the platform includes: at least one device having a plug and play interface, wherein the device includes one or more of a presentation device for presenting a predetermined function and an acquisition device for acquiring a predetermined signal; the data processing device is used for demonstrating the functions of the demonstration equipment or displaying the acquisition signals of the acquisition equipment; and a platform bus for connecting the device and the data processing apparatus. The plug-and-play demonstration verification platform can realize verification in plug-and-play avionics systems.)

1. A plug-and-play presentation verification platform, the platform comprising:

at least one device having a plug and play interface, wherein the device includes one or more of a presentation device for presenting a predetermined function and an acquisition device for acquiring a predetermined signal;

the data processing device is used for demonstrating the functions of the demonstration equipment or displaying the acquisition signals of the acquisition equipment; and

a platform bus for connecting the device and the data processing apparatus.

2. The plug-and-play presentation verification platform of claim 1, wherein said presentation device comprises a low speed radio frequency pre-processing module and a high speed radio frequency pre-processing module.

3. The plug-and-play demonstration verification platform according to claim 1 wherein said capture device comprises a photosensor.

4. The plug-and-play presentation verification platform of claim 1, wherein said data processing apparatus comprises a system management module, wherein said system management module obtains ID description information of said device through said platform bus, and drives said device according to said ID description information.

5. The plug-and-play presentation verification platform of claim 1, wherein said platform bus is a CPCI bus.

Technical Field

The application belongs to the field of airplane avionics, and particularly relates to a plug-and-play demonstration verification platform.

Background

Current avionics mission system designs are statically designed based on model combat mission capability requirements. The avionic task system realized by adopting a static system architecture technology has the advantages that the certainty and consistency of system behaviors can be ensured, the problem is that once design shaping is completed, the system is difficult to change, and when the new task capacity requirement is met, only design change can be carried out, and a basically complete design flow is executed again. Therefore, the period of the change is often less than the time for executing the design process, and it is likely that one design process is not completely executed, and a new design requirement is proposed, and a solution-free cycle of "change of demand-change of design" has to be repeated, and it is still difficult to implement available equipment that meets the new requirement under the condition of continuously consuming resources such as capital, manpower, material resources, time, and the like. The design mode of the avionics task system based on static system architecture technology cannot effectively solve such an invalid cycle problem, and can increasingly seriously result in the failure to guarantee the equipment availability.

In view of the uncertainty, future avionics platform systems are required to have flexibility, agility, customizability, and adaptivity in terms of task capability implementation.

To this end, a device or apparatus is needed that can enable plug and play verification in an avionics system.

Disclosure of Invention

The present application aims to provide a plug and play demonstration verification platform to solve any of the above problems.

The technical scheme of the application is as follows: a plug-and-play presentation verification platform, the platform comprising: at least one device having a plug and play interface, wherein the device includes one or more of a presentation device for presenting a predetermined function and an acquisition device for acquiring a predetermined signal; the data processing device is used for demonstrating the functions of the demonstration equipment or displaying the acquisition signals of the acquisition equipment; and a platform bus for connecting the device and the data processing apparatus.

In this application, the presentation device includes a low-speed radio frequency preprocessing module and a high-speed radio frequency preprocessing module.

In this application, the acquisition device comprises a photosensor.

In this application, the data processing apparatus includes a system management module, where the system management module obtains ID description information of the device through the platform bus, and drives the device according to the ID description information.

In the present application, the platform bus is a CPCI bus.

The plug-and-play demonstration verification platform can realize verification in plug-and-play avionics systems.

Drawings

In order to more clearly illustrate the technical solutions provided by the present application, the following briefly introduces the accompanying drawings. It is to be expressly understood that the drawings described below are only illustrative of some embodiments of the invention.

FIG. 1 is a block diagram of a plug-and-play demonstration verification platform of the present application;

FIG. 2 is a reference appearance diagram of a plug-and-play system platform of the present application;

FIG. 3 is a schematic diagram of an implementation of the RF pre-processing board of the present application;

FIG. 4 is a plug-and-play system workflow diagram of the present application.

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.

The method aims at solving the technical problem that Plug and Play equipment requirements on different buses exist in a future avionics system, the Plug-and-Play (PnP) equipment is discovered and identified on a standard CPCI (compact Peripheral Component interconnect) bus and a network bus, and the working flow, the system structure and the software structure of the Plug and Play equipment are researched to verify the feasibility of Plug and Play in the design of a future avionics software architecture.

As shown in fig. 1 to 4, the present application provides a plug-and-play demonstration verification platform, the platform comprising at least one device having a plug-and-play interface, wherein the device comprises one or more of a demonstration device for demonstrating a predetermined function and an acquisition device for acquiring a predetermined signal; the data processing device is used for demonstrating the functions of the demonstration equipment or displaying the acquisition signals of the acquisition equipment; and a platform bus for connecting the device and the data processing apparatus.

In some embodiments of the present application, the device may be one or more of a presentation device such as a low-speed rf pre-processing module and a high-speed rf pre-processing module, or a device employing a photo-sensor.

In some embodiments of the present application, the data processing apparatus includes a system management module, wherein the system management module obtains ID description information of the device through the platform bus, and drives the device according to the ID description information. The data processing device may be a CPU-based computer device, or may be an FPGA-based data processing device, which has data processing capability. The system management module (or system management software) is disposed in the data processing apparatus, and is used for implementing management of the plug and play device, and the specific management process can be referred to as the following.

Since the PnP device in the present application may have a change, in order to accommodate the change of the PnP device, the system management module has an identification capability of the inserted plug-and-play device. In some embodiments of the present application, both the rf pre-processing module (low-speed and high-speed) and the photoelectric sensor conform to the electrical standard and the mechanical standard of the system hardware bus, and also conform to the unified plug-and-play interface standard, the transmission standard, and the system integration standard, and when the platform changes, the new hardware-related model and the task parameters can be automatically loaded.

In some embodiments of the present application, the platform bus is a CPCI bus. The plug-and-play demonstration adopts standard CPCI bus case and CPCI computer module along the platform, and the radio frequency preprocessing module can be inserted into the case, and the radio frequency preprocessing module does not have the function of receiving and transmitting radio frequency signals, but adopts the CPCI bus structure design in order to simulate the standard bus plug-and-play function of real equipment, and the inside includes a piece of FPGA to realize the CPCI bus interface protocol:

(1) the FPGA demonstration program is used for realizing interface logic related to the CPCI bus and a necessary PnP related protocol;

(2) and for the high-speed radio frequency preprocessing module and the low-speed radio frequency preprocessing module, after system software is found, reading the internal information of the FPGA and displaying the internal information on an interface, and starting different application pictures.

The slave node can be identified by the system without any manual configuration, and the plug and play of the PnP device is realized; the master node has the function of automatically identifying each slave node, the slave nodes have differences, the master node can identify the differences among the nodes through an effective way to distinguish different slave nodes, and conditions are provided for further realizing the plug and play function of the nodes.

In this application, the (high-speed/low-speed) radio frequency preprocessing module and the photoelectric sensor are slave nodes, and the data processing device/computer is a master node. The system management module on the data processing device realizes automatic identification of the slave node, and has two functions of discovery and searching:

(1) and (4) discovering functions: the system management module can realize automatic searching of slave nodes, and is the key for realizing the plug and play function. The discovery function is an autonomous process that discovers other nodes in the network and lets the host or master node learn about the existence of this node;

(2) the searching function is as follows: the master node finds a specific object or resource in a pre-known slave node, and the master node initiates the specific object or resource to search for the existence of an object meeting a certain requirement. The look-up function may be based on address information of the slave node, or may be based on certain conditions (e.g., logical address, packet, etc.).

The rough process of implementing the PnP function by an operating system in a data processing apparatus is as follows: powering up the system, starting the PnP BIOS by the system BIOS, and searching the PnP equipment on the PCI bus; checking whether a corresponding ESCD exists by the PnP BIOS according to the ID responded by the equipment, if not, creating an ESCD file for the equipment according to the IRQ, the DMA, the memory requirement and the I/O data required by the equipment, and then entering an operating system boot stage; the operating system scans the PCI bus, finds new equipment and searches a driver according to the ESCD to complete configuration work such as corresponding installation drive, registration and activation of equipment service and the like, so that the equipment can be immediately used without restarting the system; if the correct actuation is not found, the user is prompted to specify the location of the actuation. The equipment which conforms to the PnP specification and passes the authentication does not have the problems, and the operating system provides a drive and can automatically complete the configuration work of new equipment without user intervention. After the configuration is completed, the data from the PCI equipment is bridged to the internal bus of the PC through the PCI bus and is transmitted to the allocated memory address, and then the data processing can be carried out by corresponding software.

The method adopts a fixed mode in the device, for the CPCI device, the ID of the radio frequency processing module is fixed in advance, the system management module reads the ID through the CPCI bus to discover the device, and after the system management module discovers the device, the ID description information of the device can be read, the device control information (the service which can be provided by the device can be obtained) can be obtained according to the ID description information, and the application software is started.

In order to effectively simulate real devices, the system management module provides a graphical interface, which is automatically started after the system is powered on and the computer system (in this embodiment, Windows XP is used) is started, and displays the device discovery process and the waveform starting process on the interface:

1) the waveform demonstration area is used for loading corresponding waveform video demonstration according to the found equipment, and demonstrating a continuous wave signal frequency spectrum for a low-speed radio frequency preprocessing module inserted into the system; for the inserted high-speed radio frequency preprocessing module, demonstrating frequency hopping signal frequency spectrum; for the inserted photoelectric sensor, real-time video display is carried out; if the radio frequency preprocessing module and the photoelectric sensor are inserted at the same time, the system starts 2 applications, one demonstration signal frequency spectrum and one demonstration real-time video;

2) and (3) a waveform loading demonstration area, which demonstrates the process of loading 3 waveform components onto 3 modules in an animation mode. If no RF pre-processing module or photoelectric sensor is found in the system, no animation will be played.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.