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A hdmi-based resistor array drive control method

A resistor array and control card technology, applied in program control design, program control device, TV, etc., can solve problems such as long system delay, achieve the effects of reducing hardware cost, simplifying data transmission path, and enhancing reliability

Active Publication Date: 2021-06-29
ROCKET FORCE UNIV OF ENG
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a resistance array drive control method based on HDMI, which solves the problem of long system delay in the existing resistance array drive control method

Method used

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  • A hdmi-based resistor array drive control method
  • A hdmi-based resistor array drive control method
  • A hdmi-based resistor array drive control method

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] The flow of an HDMI-based resistor array drive control method of the present invention is as follows: figure 1 As shown, the GPU on the graphics workstation is used to generate infrared video signals, and then the digital image output interface HDMI of the GPU is used to output the image to the drive control card, and the HDMI decoding chip is used to analyze the HDMI video signal at the control end of the drive control card to obtain infrared Image, use the FPGA main control chip to drive the DA chip according to the infrared image data, and the DA chip outputs the voltage to the resistor array according to the timing.

[0028] The drive control card includes an HDMI decoder chip, an FPGA main control chip and a DA chip. The image output interface HDMI uses a built-in I2C bus to transmit instructions to the decoder chip. The drive con...

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Abstract

The invention discloses an HDMI-based resistance array drive control method, which directly adopts the digital image output interface HDMI of GPU to transmit image data, analyzes the HDMI signal in a downstream drive control card and directly drives the resistance array. The data transmission process of the resistance array driving control method of the present invention only includes one stage of data transmission based on the HDMI protocol, which greatly simplifies the data transmission path, thereby reducing system delay. Because the maximum transmission rate of the HDMI protocol is much higher than that of the PC104 bus, the method of the present invention can be applied to the application of resistor array drive with a higher frame rate of larger-scale images, and because the method of the present invention only uses one drive control card to complete HDMI signal analysis All work such as driving the resistor array and so on greatly reduces the hardware cost, and at the same time helps to enhance the reliability of the system.

Description

technical field [0001] The invention belongs to the technical field of infrared imaging simulation methods, and in particular relates to an HDMI-based resistance array drive control method. Background technique [0002] Infrared imaging simulation technology is a technology that simulates infrared images of targets and backgrounds under laboratory conditions, and can be used for inspection and evaluation of infrared imaging guidance systems. Resistor array is a dynamic scene projection device based on micromachining technology, and it is one of the important means to realize infrared imaging simulation. By controlling the current flowing through each radiation unit, the control of different infrared radiation intensities of each radiation unit of the resistance array can be realized, thereby generating an infrared thermal image. The infrared imaging simulation technology based on resistor array has been widely used in the field of infrared imaging simulation because of its ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/4401H04N5/33H04N5/14
CPCG06F9/4411H04N5/14H04N5/33
Inventor 廖守亿张作宇王仕成花超李赜浩周鑫
Owner ROCKET FORCE UNIV OF ENG
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