Task situation display system

Abstract

The invention provides a task situation display system, and discloses a technical means for transmitting a rear cabin seat video picture to a front cabin. Products are constructed by selecting proper modules, rear cabin task situation pictures are transmitted to a front cabin for a pilot to check, the overall situation awareness ability of the pilot is improved, cooperative flight and task execution of the front cabin and the rear cabin are facilitated, and combat effectiveness is improved.

Description

Technical Field

[0001] The invention belongs to the field of aviation technology and relates to a mission situation display system. Background Art

[0002] Currently, special aircraft have the following flight system: the pilot in the front cabin is responsible for flying the aircraft, reaching the designated target or area, and ensuring flight safety, while the crew in the rear cabin is responsible for carrying out the mission and achieving the designated target or effect.

[0003] However, the following situation occurs when the aircraft is performing combat missions: since the front and rear cabin images cannot be shared, the pilot cannot synchronize and understand the combat intentions of the rear cabin personnel. The untimely transmission of information may result in the aircraft being unable to reach the combat area in the shortest time or fly on the optimal route. Summary of the invention

[0004] The present invention provides a mission situation display system, which can transmit the mission situation picture of the rear cabin to the front cabin for the pilot to view, thereby improving the pilot's overall situation awareness ability, facilitating the coordinated flight and mission execution of the front and rear cabins, and improving combat effectiveness.

[0005] The present invention provides a task situation display system, comprising: a video processing unit and a situation display; wherein:

[0006] The video processing unit is used to receive the multi-channel mission video images and input commands provided by the tactical display of the rear cabin seat, and realize the switching and format conversion of the multi-channel mission video images according to the input commands, and transmit a DVI signal to the situation display;

[0007] The situation display comprises: a liquid crystal display module, a first video processing module, a control module, a first power supply module and a heating module;

[0008] The liquid crystal display module is used for displaying pictures;

[0009] The first video processing module is used to decode, process and convert the format of the DVI signal sent by the video processing unit, and then send it to the liquid crystal display module for display;

[0010] The control module is used to realize the internal integrated control of the situation display;

[0011] The first power supply module receives the 12V power supply output by the video processing unit and converts it into the power supply required by each internal module. The heating module receives the onboard 28V heating power supply and starts heating the liquid crystal display module according to the instruction of the control module.

[0012] Optional, video processing unit, used to receive 4 channels of differential three-wire analog video, and convert it into single-ended five-wire video signal, realize the selection and switching function through analog matrix chip, convert the selected 4 channels into differential three-wire analog video output, decode the 5th channel and send it to FPGA for cropping, and then convert it into DVI video output through encoding chip. At the same time, external communication function is realized through communication interface, and video switching and format conversion function are realized by receiving external instructions.

[0013] Optionally, the video processing unit includes: a second video processing module, a second power supply module, and a signal interface module; wherein,

[0014] A video processing module, used for performing video processing;

[0015] Power module, used to convert 28V input power to 12V;

[0016] The signal interface module is used to complete the debugging interface, discrete signal function, signal transfer and internal module signal interaction functions.

[0017] Optionally, the video processing module is specifically used to detect the temperature of the FPGA chip, detect the resolution of each input video, detect the presence or absence of each output video, and test the bus port status and report it;

[0018] The power module is specifically used to supply 28V power provided by the bus bar on the receiver, and convert it into the working voltage required by each module, provide secondary power for other modules or devices, and has a start signal to control the output and shutdown of the secondary voltage;

[0019] The signal interface module is specifically used to realize the switching of debugging signals, realize the output of chassis debugging signals, and lead out the debugging signals of the video processing module for debugging and upgrading; the debugging interface and discrete quantity signals of the video processing module are led out through the front panel connector of the video processing unit chassis to ensure signal integrity.

[0020] Optionally, the signal interface module includes: interface video input;

[0021] Interface video input: The video processing module uses the interface chip as a signal conversion chip to receive external differential video signals and convert them into single-ended RGB signals and line-field signals. The RGB signal is decoded by the chip and sent to the FPGA, and the line-field signal is directly sent to the FPGA.

[0022] Optionally, the signal interface module includes: XGA interface video output;

[0023] XGA interface video output of the video processing unit: converts single-ended RGB signals and line field signals into XGA differential signals through the interface conversion chip and outputs them to the outside of the chassis, meeting the use requirements of the module video output function.

[0024] Optionally, the signal interface module includes: XGA interface video output;

[0025] DVI interface video output of the video processing unit: uses the chip to encode the video signal and output DVI format video.

[0026] Optionally, the video processing unit uses a rectangular connector to connect with the connector of the mounting bracket through a quick plug-in method; the rear connector of the video processing unit uses a high-performance and high-reliability connector, which is mainly used for video signal and control signal transmission and power supply of the video processing unit; the connector used at the front connector of the video processing unit is mainly used for debugging signal transmission.

[0027] Optionally, the LCD display module is designed with an LED backlight. Since the heat generated by the LED lamp after it is lit will cause the backlight temperature to rise, a temperature sensor is needed to monitor the temperature of the backlight panel and perform high-temperature limit control to prevent the LED lamp from being damaged due to excessive temperature, thereby effectively protecting the backlight.

[0028] The core component of the control module is FPGA. FPGA mainly realizes two major functions. One is the control of the temperature control circuit, including temperature acquisition, backlight adjustment, heating control and serial communication, etc. The other is to realize signal display, including signal processing, timing adjustment and screen control.

[0029] The present invention provides a mission situation display system, through which a mission situation picture of a rear cabin can be transmitted to a front cabin for viewing by a pilot, thereby improving the overall situation awareness capability of the pilot and facilitating coordinated flight and mission execution of the front and rear cabins. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is the appearance structure diagram of the video processing unit chassis;

[0031] Figure 2 This is a diagram of the internal structure of the video processing unit chassis. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0033] The present invention provides a task situation display system, comprising: a video processing unit and a situation display.

[0034] The video processing unit has the ability to receive and output multiple channels of video, the ability to digitize the input differential three-wire analog video, and the ability to switch videos. The video processing unit can convert the externally input 4-channel differential three-wire analog video into a single-ended five-wire video signal, and realize the 4-to-5 function through the analog matrix chip, convert the selected 4 channels into differential three-wire analog video output, decode the 5th channel and send it to the FPGA for cropping, and then convert it into DVI video output through the encoding chip. At the same time, the external communication function is realized through the communication interface, and the video switching and format conversion functions are realized by receiving external commands.

[0035] The video processing unit is mainly composed of a video processing module, a power module, and a signal interface module. The video processing module mainly completes the video processing function, the power module completes the 28V input power conversion to 12V function, the signal interface module completes the signal functions such as the debug interface and discrete quantity, and the signal interface module completes the signal transfer and the interaction of the internal module signals.

[0036] The video processing module is responsible for FPGA chip temperature detection, each channel input video resolution detection, each channel output video presence detection, bus port status test and reporting; the power module receives the 28V power supply provided by the bus bar on the receiver and converts it into the working voltage required by each SRU, providing secondary power for other modules or equipment, and has a start signal to control the output and shutdown of the secondary voltage, with functions such as anti-reverse, transient suppression, filtering, power-off maintenance, temperature monitoring and power-off detection; the signal interface module mainly realizes the switching of debugging signals and the output of chassis debugging signals. Its main function is to lead out the debugging signals of the video processing module for debugging and upgrading. The signal interface module mainly leads out the debugging interface, discrete quantity and other signals of the video processing module through the front panel connector of the video processing unit chassis to ensure signal integrity; the signal interface module is mainly used for signal switching and interaction of internal module signals.

[0037] The situation display provided by the present invention is composed of five components, including a liquid crystal display module, a video processing module, a control module, a power supply module and a heating module.

[0038] The LCD module is responsible for screen display; the video processing module decodes, processes and converts the DVI signal sent by the video processing unit, and then sends it to the LCD module for display; the control module realizes the internal comprehensive control of the situation display; the power module receives the 12V power output by the video processing unit and converts it into the power required by each internal module, and the heating module receives the onboard 28V heating power supply and starts heating the LCD module according to the instructions of the control module.

[0039] Exemplarily, the interface video input of the video processing unit: the video processing module uses the interface chip as a signal conversion chip to receive the external differential video signal and convert it into a single-ended RGB signal and a line field signal. The RGB signal is decoded by the chip and sent to the FPGA, and the line field signal is directly sent to the FPGA.

[0040] XGA interface video output of the video processing unit: converts single-ended RGB signals and line field signals into XGA differential signals through the interface conversion chip and outputs them to the outside of the chassis, meeting the use requirements of the module video output function.

[0041] DVI interface video output of the video processing unit: uses the chip to encode the video signal and output DVI format video.

[0042] The video processing unit uses a rectangular connector to connect with the connector of the mounting bracket through quick plug-in and pull-out. The rear connector of the video processing unit uses a high-performance and high-reliability connector, which is mainly used for video signal and control signal transmission and power supply of the video processing unit. The connector used at the front connector of the video processing unit is mainly used for debugging signal transmission.

[0043] For example, the liquid crystal display module is designed with an LED backlight. Since the heat generated by the LED lamp after it is lit will cause the backlight temperature to rise, a temperature sensor is needed to monitor the temperature of the backlight panel and perform high-temperature limit brightness control to prevent damage to the LED lamp due to excessive temperature, thereby effectively protecting the backlight. The core component of the control module is FPGA. FPGA mainly realizes two major functions: one is the control of the temperature control circuit, including temperature acquisition, backlight adjustment, heating control and serial communication, and the other is to realize signal display, including signal processing, timing adjustment and screen control.

[0044] The video processing unit receives 4-channel mission video images output by the tactical display of the rear cabin seat, and after processing, selection and allocation, the 4-channel differential RGB images are sent to other displays, and 1-channel DVI is sent to the situation display for display.

Claims

1. A task situation display system, characterized in that: include: A video processing unit and a situation display; wherein, The video processing unit is used to receive the multi-channel mission video images and input commands provided by the tactical display of the rear cabin seat, and realize the switching and format conversion of the multi-channel mission video images according to the input commands, and transmit a DVI signal to the situation display; The situation display comprises: a liquid crystal display module, a first video processing module, a control module, a first power supply module and a heating module; The liquid crystal display module is used for displaying pictures; The first video processing module is used to decode, process and convert the format of the DVI signal sent by the video processing unit, and then send it to the liquid crystal display module for display; The control module is used to realize the internal integrated control of the situation display; The first power supply module receives the 12V power supply output by the video processing unit and converts it into the power supply required by each internal module. The heating module receives the onboard 28V heating power supply and starts heating the liquid crystal display module according to the instruction of the control module.

2. The task situation display system according to claim 1, characterized in that: The video processing unit is used to receive 4-channel differential three-wire analog video and convert it into a single-ended five-wire video signal. The selection and switching function is realized through the analog matrix chip. The selected 4 channels are converted into differential three-wire analog video outputs, and the 5th channel is decoded and sent to the FPGA for cropping, and then converted into DVI video output through the encoding chip. At the same time, the external communication function is realized through the communication interface, and the video switching and format conversion functions are realized by receiving external commands.

3. The task situation display system according to claim 1, characterized in that: The video processing unit includes: a second video processing module, a second power supply module, and a signal interface module; wherein, A video processing module, used for performing video processing; Power module, used to convert 28V input power to 12V; The signal interface module is used to complete the debugging interface, discrete signal function, signal transfer and internal module signal interaction functions.

4. The task situation display system according to claim 3, characterized in that: The video processing module is specifically used to detect the temperature of the FPGA chip, the resolution of each input video, the presence or absence of each output video, and the bus port status test and report; The power module is specifically used to supply 28V power provided by the bus bar on the receiver, and convert it into the working voltage required by each module, provide secondary power for other modules or devices, and has a start signal to control the output and shutdown of the secondary voltage; The signal interface module is specifically used to realize the switching of debugging signals, realize the output of chassis debugging signals, and lead out the debugging signals of the video processing module for debugging and upgrading; the debugging interface and discrete quantity signals of the video processing module are led out through the front panel connector of the video processing unit chassis to ensure signal integrity.

5. The task situation display system according to claim 4, characterized in that: The signal interface module includes: interface video input; Interface video input: The video processing module uses the interface chip as a signal conversion chip to receive external differential video signals and convert them into single-ended RGB signals and line-field signals. The RGB signal is decoded by the chip and sent to the FPGA, and the line-field signal is directly sent to the FPGA.

6. The task situation display system according to claim 5, characterized in that: The signal interface module includes: XGA interface video output; XGA interface video output of the video processing unit: converts single-ended RGB signals and line field signals into XGA differential signals through the interface conversion chip and outputs them to the outside of the chassis, meeting the use requirements of the module video output function.

7. The task situation display system according to claim 5, characterized in that: The signal interface module includes: XGA interface video output; DVI interface video output of the video processing unit: uses the chip to encode the video signal and output DVI format video.

8. The task situation display system according to claim 1, characterized in that: The video processing unit uses a rectangular connector to connect with the connector of the mounting bracket through quick plug-in and pull-out. The rear connector of the video processing unit uses a high-performance and high-reliability connector, which is mainly used for video signal and control signal transmission and power supply of the video processing unit. The connector used at the front connector of the video processing unit is mainly used for debugging signal transmission.

9. The task situation display system according to claim 1, characterized in that: The LCD display module is designed with LED backlight. Since the heat generated by the LED lamp will cause the backlight temperature to rise after it is turned on, a temperature sensor is needed to monitor the temperature of the backlight panel and perform high-temperature limit control to prevent the LED lamp from being damaged due to excessive temperature and effectively protect the backlight. The core component of the control module is FPGA. FPGA mainly realizes two major functions. One is the control of the temperature control circuit, including temperature acquisition, backlight adjustment, heating control and serial communication, etc. The other is to realize signal display, including signal processing, timing adjustment and screen control.

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