CN108627251B - Active radiation infrared scene conversion system - Google Patents
Active radiation infrared scene conversion system Download PDFInfo
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- CN108627251B CN108627251B CN201810649255.9A CN201810649255A CN108627251B CN 108627251 B CN108627251 B CN 108627251B CN 201810649255 A CN201810649255 A CN 201810649255A CN 108627251 B CN108627251 B CN 108627251B
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- 230000005855 radiation Effects 0.000 title claims abstract description 55
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 45
- 238000004088 simulation Methods 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 claims description 12
- 238000004364 calculation method Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 2
- 230000010354 integration Effects 0.000 abstract description 11
- 238000003331 infrared imaging Methods 0.000 abstract description 10
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
Abstract
The invention discloses an active radiation infrared scene conversion system, which can enable an active radiation infrared scene converter to meet the technical requirement of self-adaption variable integration, solve the problem of real-time matching of the integration time of an active radiation infrared target simulator and the closed-loop simulation of a detected infrared imaging device, and further ensure the real-time performance and reliability of a semi-physical simulation system.
Description
Technical Field
The invention relates to the technical field of infrared imaging, in particular to an active radiation infrared scene conversion system.
Background
The infrared imaging technology is widely applied in the field of national production and living, and higher requirements are put forward on the corresponding infrared imaging semi-physical simulation method. The real-time performance and reliability of infrared imaging scene conversion are important. The active radiation infrared scene conversion technology based on the resistor array device needs to be matched with the integration time of the detected infrared imaging device, the capability of outputting an infrared scene in real time and stably is met as far as possible, a closed-loop real-time simulation system is formed, and the conversion and the output of the infrared scene are completed with delay as little as possible. At present, pixels of a mainstream domestic active radiation infrared scene converter gradually develop to a large-scale array of more than 256 multiplied by 256, and in order to meet the requirement of matching with the integration time of a detected infrared imaging device, a high-speed driving design with short delay and real-time performance needs to be adopted in the system design, so that the self-adaptive variable-integration infrared scene conversion is realized.
Disclosure of Invention
In view of this, in order to solve at least one of the above problems, the present invention provides an active radiation infrared scene conversion system, which solves the problem of real-time matching between the integration time of an active radiation infrared target simulator and the closed-loop simulation of a detected infrared imaging device, and ensures the real-time performance and reliability of a semi-physical simulation system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the embodiment of the invention provides an active radiation infrared scene conversion system, which comprises:
the measured optical module generates infrared image projection time sequence data;
the simulation module generates a simulation calculation instruction according to the tested optical module;
the image generation calculation module generates a simulation scene and a target infrared radiation image according to the simulation calculation instruction, and outputs a driving signal according to sequence data of the image;
the driving module drives the active radiation conversion device according to the driving signal so that the active radiation conversion device generates an infrared radiation thermal image;
a data transmission correction module for correcting the infrared image projection time sequence data and outputting a correction signal,
the driving module drives the active radiation conversion device according to the correction signal so that the active radiation conversion device generates a dynamic infrared image.
Preferably, the active radiation conversion device is set to a rolling scan refresh mode of operation.
Preferably, the system comprises: and the external synchronization module is connected with the optical module to be detected and the data transmission correction module and is used for transmitting the infrared image projection time sequence data to the data transmission correction module.
Preferably, the driving module receives the driving signal and drives the active radiation conversion device to operate according to a preset time beat.
Preferably, the data transmission correction module acquires the infrared image projection timing data through a PCI or PCIe bus, and the data transmission correction module is configured to perform data transmission and correction simultaneously.
Preferably, the data transmission correction module is set to a ping-pong mode of operation of the dual-port SRAM, and/or the active radiation conversion device is set to drive in a drive-while-reading data from the fibre channel mode.
Preferably, the active radiation conversion device comprises two sub-modules.
Preferably, 1 128-bit shift register providing horizontal scanning strobe timing and 16-bit multiplexers composed of 16-bit shift registers and 16 transmission gates are integrated on the periphery of each submodule respectively to provide vertical scanning strobe timing and serial analog control signals.
Preferably, the array size of each submodule is 256 × 128 elements.
Preferably, the sub-modules are driven in a column-by-column group scanning manner.
The invention has the following beneficial effects:
the invention provides an active radiation infrared scene conversion system, which can enable an active radiation infrared scene converter to meet the technical requirement of self-adaption variable integration, solve the problem of real-time matching of the integration time of an active radiation infrared target simulator and the closed-loop simulation of a detected infrared imaging device, and further ensure the real-time performance and reliability of a semi-physical simulation system.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of an active radiation infrared scene conversion system according to an embodiment of the present invention.
Reference numerals: 1-an image generation calculation module; 2-a data transmission correction module; 3-an external synchronization module; 4-a drive module; 5-active radiation conversion device.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
Fig. 1 shows a schematic structural diagram of an active radiation infrared scene conversion system according to an embodiment of the present invention. Referring to fig. 1, an embodiment of the present invention provides an active radiation infrared scene conversion system, 1, which is characterized by comprising: the device comprises an optical module to be detected and an active radiation conversion device; the simulation module generates a simulation calculation instruction according to the tested optical module; the image generation and calculation module is used for generating a simulation scene and a target infrared radiation image according to a simulation calculation instruction and outputting a driving signal according to sequence data of the image, and the driving module is used for driving the active radiation conversion device according to a first driving signal so as to enable the active radiation conversion device to generate an infrared radiation thermal image; the external synchronization module is connected with the optical module to be detected and outputs infrared image projection time sequence data generated by the optical module to be detected; and the data transmission correction module is used for correcting the infrared image projection time sequence data and outputting a correction signal, wherein the driving module drives the active radiation conversion device according to the correction signal so that the active radiation conversion device generates a dynamic infrared image.
The driving module receives a first driving signal and drives the active radiation conversion device to operate according to a preset time beat.
The invention provides an active radiation infrared scene conversion system, which can enable an active radiation infrared scene converter to meet the technical requirement of self-adaption variable integration, solve the problem of real-time matching of the integration time of an active radiation infrared target simulator and the closed-loop simulation of a detected infrared imaging device, and further ensure the real-time performance and reliability of a semi-physical simulation system.
Further, the active radiation conversion device is set to a rolling scan refresh operation mode. Because the active radiation conversion device row adopts a rolling scanning refreshing working mode, the starting time of the image temperature change of each frame is the same as the starting time of the active radiation conversion device driver for refreshing the image control signal of the active radiation conversion device, namely the two are parallel.
In addition, the external synchronization module is connected with the optical module to be tested through a BNC cable. The infrared image projection time sequence is provided by the tested optical module and is sent to the data transmission correction module through the external synchronization module, so that the self-adaptive variable integration time is realized.
The data transmission correction module acquires the infrared image projection time sequence data through a PCI or PCIe bus, and the data transmission correction module is configured to transmit and correct data at the same time. Meanwhile, the data is corrected by adopting the FPGA in a hardware logic circuit mode, so that the real-time property of the system is ensured, and the requirement that the frame frequency is 100Hz can be met.
When the logic is designed, a PCI/PCIe bus edge data transmission edge correction mode is adopted, so that the consumption time of the part of logic in one frame period is 3ms, meanwhile, the data transmission correction module is set to be a ping-pong operation mode of a dual-port SRAM, and/or the active radiation conversion device is set to be driven to adopt an edge data reading and driving mode when being driven. The consumption time of the logic circuit is 4ms, so that the harsh requirement of the system operation on time is guaranteed overall, and the instantaneity of variable integration time is guaranteed.
The active radiation conversion device comprises two sub-modules. Each submodule periphery integrates 1 128-bit shift register for providing horizontal scanning strobe timing and 16-bit multiplexers composed of 16-bit shift registers and 16 transmission gates for providing vertical scanning strobe timing and serial analog control signals. The array size of each submodule is 256 x 128 elements. The grouping design can reduce the number of external pins of the chip and reduce the bandwidth pressure of the external driving module.
The sub-module is driven by adopting a mode of column-by-column grouping scanning, firstly all units of a certain column are gated by a transverse 128-bit shift register, then during the period that the column is gated, 16 longitudinal 16-bit multiplexers are simultaneously started to scan by the first row of 16 rows of units controlled by each transmitter, when a certain unit is scanned, a corresponding serial analog driving voltage Vs (n) is injected onto a holding capacitor of the unit through the multiplexer, after all 16 units of each group are driven, the transverse shift register drives the units of the next column in turn, a new round of driving is started again, the operation is repeated in a circulating mode, the units driven in front continue to maintain the driving voltage by the holding capacitors of the units, and the driving signals can not be refreshed until the next frame comes.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (7)
1. An active radiant infrared scene conversion system, comprising:
the measured optical module generates infrared image projection time sequence data;
the simulation module generates a simulation calculation instruction according to the tested optical module;
the image generation calculation module generates a simulation scene and a target infrared radiation image according to the simulation calculation instruction, and outputs a driving signal according to sequence data of the image;
the driving module drives the active radiation conversion device according to the driving signal so that the active radiation conversion device generates an infrared radiation thermal image;
a data transmission correction module for correcting the infrared image projection time sequence data and outputting a correction signal,
the data transmission correction module acquires the infrared image projection time sequence data through a PCI or PCIe bus, and is configured to transmit and correct data at the same time, and the data correction is realized by adopting an FPGA (field programmable gate array) in a hardware logic circuit mode;
the driving module drives the active radiation conversion device according to the correction signal so that the active radiation conversion device generates a dynamic infrared image;
the active radiation conversion device is set to a rolling scanning refreshing operation mode;
and the external synchronization module is connected with the optical module to be detected and the data transmission correction module and is used for transmitting the infrared image projection time sequence data to the data transmission correction module.
2. The system of claim 1, wherein the driving module receives the driving signal to drive the active radiation conversion device to operate according to a preset time beat.
3. The system of claim 1, wherein the data transfer correction module is configured to operate in a ping-pong mode with a two-port SRAM, and/or the active radiation conversion device is configured to operate in a drive-while-reading data from a fibre channel.
4. The system of claim 1, wherein the active radiation conversion device comprises two sub-modules.
5. The system of claim 4, wherein each submodule periphery integrates 1 128-bit shift register providing horizontal scan strobe timing and 16-bit multiplexers consisting of 16-bit shift registers and 16 transmission gates to provide vertical scan strobe timing and serial analog control signals.
6. The system of claim 4, wherein the array size of each sub-module is 256 x 128 elements.
7. The system of claim 4, wherein the sub-modules are driven in a column-by-column group scan.
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| CN201810649255.9A CN108627251B (en) | 2018-06-22 | 2018-06-22 | Active radiation infrared scene conversion system |
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| CN201810649255.9A CN108627251B (en) | 2018-06-22 | 2018-06-22 | Active radiation infrared scene conversion system |
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| CN106646864B (en) * | 2016-11-29 | 2022-11-15 | 西安天圆光电科技有限公司 | Film resistor array infrared scene generation device and working method |
| CN106780371A (en) * | 2016-11-29 | 2017-05-31 | 西安天圆光电科技有限公司 | A kind of 256 × 256 yuan of MOS film resistors battle array drive device and driving method of work |
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