CN204705413U - A kind of infreared imaging device of miniaturization - Google Patents
A kind of infreared imaging device of miniaturization Download PDFInfo
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- CN204705413U CN204705413U CN201520453176.2U CN201520453176U CN204705413U CN 204705413 U CN204705413 U CN 204705413U CN 201520453176 U CN201520453176 U CN 201520453176U CN 204705413 U CN204705413 U CN 204705413U
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Abstract
The utility model relates to the infreared imaging device of miniaturization, its the corresponding non-refrigerated infrared focal plane probe of infrared optical lens, the bias voltage signal input end of non-refrigerated infrared focal plane probe connects bias unit, the VT of non-refrigerated infrared focal plane probe is by analog to digital converter connection handling device, the temperature control signals output terminal of Temperature Controller by Means of Semi conductor connects non-refrigerated infrared focal plane probe, the temperature feedback signal output terminal of non-refrigerated infrared focal plane probe connects Temperature Controller by Means of Semi conductor, the temperature of Temperature Controller by Means of Semi conductor controls settling signal output terminal connection handling device, processor connected storage, processor is also provided with LVDS transmitter and serial port level changer, the drive singal output terminal of processor connects the drive singal interface of non-refrigerated infrared focal plane probe.The utility model improve self conversion speed, reduce overall size, add reliability.
Description
Technical field
The utility model relates to infrared imagery technique field, is specifically related to a kind of infreared imaging device of miniaturization.
Background technology
Infrared imagery technique, can need not throw light on and just equally with daytime can see surrounding scenes clearly under the entirely black night sky; Can scenery radiation at normal temperatures itself be converted to visible image information; Infrared imaging is divided into refrigeration imaging and non-brake method imaging, refrigeration type infrared detector material expensive, and the yield rate of detector is very low, result in refrigeration mode infra-red thermal imaging system expensive; In addition, refrigeration mode infra-red thermal imaging system additionally needs a set of refrigeration plant, adds system cost, reduces the reliability of system; The power consumption of refrigeration mode system is large, is difficult to realize miniaturization.These shortcomings limit its popularization in low cost industry and commerce field.Uncooled infrared imaging system, owing to not needing independent refrigeration plant, therefore has the advantage that price is low, low in energy consumption, lightweight and reliability is high.But, current non refrigerating infrared imaging device adopts DSP (digital signal processor mostly, digital signal processor) add FPGA (Field Programmable Gate Array, field programmable gate array) framework, wherein DSP mainly realizes the functions such as data operation, data communication and system management; And FPGA mainly realizes the signal transacting fixed and sequential control function; The two cooperatively interacts, and completes the real-time process to image.But in such systems, the control frequently switched storer is needed based on time-multiplexed DSP and FPGA of bus, the data transmission efficiency of whole system will inevitably be reduced, increase the complexity of analyzing logic control, bring inconvenience to the design of system and application.The more important thing is, adopt the circuit volume of DSP+FPGA framework bigger than normal, be difficult to the application requirement meeting miniaturization.
Utility model content
The purpose of this utility model is the infreared imaging device providing a kind of miniaturization, the arrangement increases the conversion speed of self, reduces overall size, adds reliability.
For achieving the above object, the infreared imaging device of the miniaturization designed by the utility model, it comprises infrared optical lens, it also comprises prober interface module, analog to digital conversion and temperature control module and signal processing module, described prober interface module comprises bias unit, non-refrigerated infrared focal plane probe, described analog to digital conversion and temperature control module comprise conductor refrigeration (TEC, ThermoelectricCooler) temperature controller and analog to digital converter, described signal processing module comprises processor, storer, low-voltage differential signal transmitter and serial port level changer, wherein, the optical signal input of the corresponding non-refrigerated infrared focal plane probe of light signal output end of described infrared optical lens, the bias voltage signal input end of non-refrigerated infrared focal plane probe connects the bias signal output of bias unit, the analog video signal output terminal of non-refrigerated infrared focal plane probe passes through the digital video signal input end of analog to digital converter connection handling device, the conductor refrigeration temperature control signals output terminal of Temperature Controller by Means of Semi conductor connects the temperature control signals input end of non-refrigerated infrared focal plane probe, the temperature feedback signal output terminal of non-refrigerated infrared focal plane probe connects the temperature feedback signal input end of Temperature Controller by Means of Semi conductor, the temperature of Temperature Controller by Means of Semi conductor controls the temperature control settling signal input end of settling signal output terminal connection handling device, the data memory interface connected storage of processor, first digital infrared imaging signal output part of processor connects low-voltage differential signal (Low Voltage Differential Signaling, LVDS) signal input part of transmitter, the command communication end of processor connects the communication interface of serial port level changer, the detector drive singal output terminal of processor connects the detector driving signal input of non-refrigerated infrared focal plane probe.
The utility model adopts single high performance FPGA device architectures (processor namely in signal processing module) to improve speed and the data transmission efficiency of picture signal process, reduces the complexity of analyzing logic control.FPGA internal storage (i.e. the storer of signal processing module inside) is utilized in the transmitting procedure of picture signal, eliminate external FIFO (the First Input First Output needed in traditional infrared imaging, First Input First Output chip) or DPRAM (double port random memory DPRAM, double-port RAM), in addition, the processor of signal processing module directly drives non-refrigerated infrared focal plane probe, the utility model is made to have higher integrated level, eliminate the external drive circuit in traditional non refrigerating infrared imaging device, save making sheet space, reduce the size of infreared imaging device, improve the reliability of device.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Wherein, 1-signal processing module, 1.1-processor, 1.2-storer, 1.3-low-voltage differential signal transmitter, 1.4-serial port level changer, 1.5-digital to analog converter, 2-infrared optical lens, 3-prober interface module, 3.1-bias unit, 3.2-non-refrigerated infrared focal plane probe, 3.3-active filter, 4-analog to digital conversion and temperature control module, 4.1-Temperature Controller by Means of Semi conductor, 4.2-analog to digital converter, 4.3-passive filter.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
The infreared imaging device of miniaturization as described in Figure 1, it comprises infrared optical lens 2, prober interface module 3, analog to digital conversion and temperature control module 4 and signal processing module 1, described prober interface module 3 comprises bias unit 3.1, non-refrigerated infrared focal plane probe 3.2, described analog to digital conversion and temperature control module 4 comprise Temperature Controller by Means of Semi conductor 4.1 and analog to digital converter 4.2, described signal processing module 1 comprises processor 1.1, storer 1.2, low-voltage differential signal transmitter 1.3 and serial port level changer 1.4, wherein, the optical signal input of the corresponding non-refrigerated infrared focal plane probe 3.2 of light signal output end of described infrared optical lens 2, the bias voltage signal input end of non-refrigerated infrared focal plane probe 3.2 connects the bias signal output of bias unit 3.1, the analog video signal output terminal of non-refrigerated infrared focal plane probe 3.2 passes through the digital video signal input end of analog to digital converter 4.2 connection handling device 1.1, the conductor refrigeration temperature control signals output terminal of Temperature Controller by Means of Semi conductor 4.1 connects the temperature control signals input end of non-refrigerated infrared focal plane probe 3.2, the temperature feedback signal output terminal of non-refrigerated infrared focal plane probe 3.2 connects the temperature feedback signal input end of Temperature Controller by Means of Semi conductor 4.1, the temperature of Temperature Controller by Means of Semi conductor 4.1 controls the temperature control settling signal input end of settling signal output terminal connection handling device 1.1, the data memory interface connected storage 1.2 of processor 1.1, first digital infrared imaging signal output part of processor 1.1 connects the signal input part of low-voltage differential signal transmitter 1.3, the command communication end of processor 1.1 connects the communication interface of serial port level changer 1.4, the detector drive singal output terminal of processor 1.1 connects the detector driving signal input of non-refrigerated infrared focal plane probe 3.2.Above-mentioned serial port level changer 1.4 is chosen as RS422 serial port level changer.Above-mentioned prober interface module 3, analog to digital conversion and temperature control module 4 and signal processing module 1 adopt 12V Power supply.
In technique scheme, described signal processing module 1 also comprises digital to analog converter 1.5, the signal input part of the second digital infrared imaging signal output part linking number weighted-voltage D/A converter 1.5 of processor 1.1.
In technique scheme, described prober interface module 3 also includes source filter 3.3, analog to digital conversion and temperature control module 4 also comprise passive filter 4.3, and the analog video signal output terminal of described non-refrigerated infrared focal plane probe 3.2 passes through the analog video signal input end of active filter 3.3 and passive filter 4.3 connection mode number converter 4.2 successively.
In technique scheme, processor 1.1 is field programmable gate array processor.Field programmable gate array processor realizes real time signal processing (for completing the nonuniformity correction to input picture, blind element substitutes and contrast strengthen function), statistics with histogram (for completing the statistics with histogram to input picture), Video Composition, time series stereodata (for providing digital drive signals and clock signal to non-refrigerated infrared focal plane probe 3.2), system NiosII manages, EFR STK generates, interface logic controls (for storer 1.2, the logic control of low-voltage differential signal transmitter 1.3 and serial port level changer 1.4).
In technique scheme, non-refrigerated infrared focal plane probe 3.2 is converted to electric signal for the infrared radiation signal passed over by optical lens; Bias unit 3.1 is for providing the various bias voltages needed for non-refrigerated infrared focal plane probe 3.2; Temperature Controller by Means of Semi conductor 4.1 provides a stable temperature environment for non-refrigerated infrared focal plane probe 3.2; RS422 serial port level changer provides command communication interface for user, and for realizing infreared imaging device self-inspection, mode of operation is selected, nonuniformity correction way selection function; Low-voltage differential signal transmitter 1.3 exports for digital video signal; Digital to analog converter 1.5 is converted to PAL (Phase Alteration Line, PAL system, a kind of TV broadcasting system) vision signal processed of simulation for the digital signal exported by processor 1.1.
The course of work of the present utility model is: after system boot, processor 1.1 is automatically from storer 1.2 loading procedure, processor 1.1 is to non-refrigerated infrared focal plane probe 3.2 load driver signal, after drive singal is stable, the analog bias of non-refrigerated infrared focal plane probe 3.2 powers on, the working temperature of non-refrigerated infrared focal plane probe 3.2 is regulated to draw close (temperature controls and temperature feedback combines), until temperature stabilization to setting value by Temperature Controller by Means of Semi conductor 4.1.Meanwhile, processor 1.1 loads NiosII supervisory routine and start-up picture data to storer 1.2; After NiosII supervisory routine completes initialization, control processor 1.1 reads start-up picture from storer 1.2, without any process, only carries out Video Composition and through digital to analog converter 1.5 output display.
When Temperature Controller by Means of Semi conductor 4.1 by the temperature stabilization of non-refrigerated infrared focal plane probe 3.2 after setting value, processor 1.1 starts to read the original image (original image that non-refrigerated infrared focal plane probe 3.2 exports enters processor 1.1 through active filter 3.3, passive filter 4.3 and analog to digital converter 4.2) exported by non-refrigerated infrared focal plane probe 3.2, same without any process, provide original image signal to weighted-voltage D/A converter 1.5 after processor 1.1 carries out Video Composition.Simultaneously, the extraneous serial port level changer 1.4 that can pass through is to the NiosII supervisory routine transmit operation mode instruction in processor 1.1, control processor 1.1 is operated in calibration mode or correction mode, and under calibration mode, NiosII supervisory routine sends sampling pulse signal to processor 1.1.Processor 1.1 in storer 1.2, is completed the calculating of correction coefficient raw image storage by NiosII supervisory routine.Under correction mode, the original infrared image signal that processor 1.1 pairs of analog to digital converters 4.2 gather carries out nonuniformity correction, blind element is replaced and output display after contrast enhancement processing, and display mode comprises and showing through the digital video display of low-voltage differential signal transmitter 1.3 and the analog video through digital to analog converter 1.5.
The content that this instructions is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (4)
1. the infreared imaging device of a miniaturization, it comprises infrared optical lens (2), it is characterized in that: it also comprises prober interface module (3), analog to digital conversion and temperature control module (4) and signal processing module (1), described prober interface module (3) comprises bias unit (3.1), non-refrigerated infrared focal plane probe (3.2), described analog to digital conversion and temperature control module (4) comprise Temperature Controller by Means of Semi conductor (4.1) and analog to digital converter (4.2), described signal processing module (1) comprises processor (1.1), storer (1.2), low-voltage differential signal transmitter (1.3) and serial port level changer (1.4), wherein, the optical signal input of the corresponding non-refrigerated infrared focal plane probe (3.2) of light signal output end of described infrared optical lens (2), the bias voltage signal input end of non-refrigerated infrared focal plane probe (3.2) connects the bias signal output of bias unit (3.1), the analog video signal output terminal of non-refrigerated infrared focal plane probe (3.2) passes through the digital video signal input end of analog to digital converter (4.2) connection handling device (1.1), the conductor refrigeration temperature control signals output terminal of Temperature Controller by Means of Semi conductor (4.1) connects the temperature control signals input end of non-refrigerated infrared focal plane probe (3.2), the temperature feedback signal output terminal of non-refrigerated infrared focal plane probe (3.2) connects the temperature feedback signal input end of Temperature Controller by Means of Semi conductor (4.1), the temperature of Temperature Controller by Means of Semi conductor (4.1) controls the temperature control settling signal input end of settling signal output terminal connection handling device (1.1), the data memory interface connected storage (1.2) of processor (1.1), first digital infrared imaging signal output part of processor (1.1) connects the signal input part of low-voltage differential signal transmitter (1.3), the command communication end of processor (1.1) connects the communication interface of serial port level changer (1.4), the detector drive singal output terminal of processor (1.1) connects the detector driving signal input of non-refrigerated infrared focal plane probe (3.2).
2. the infreared imaging device of miniaturization according to claim 1, it is characterized in that: described signal processing module (1) also comprises digital to analog converter (1.5), the signal input part of the second digital infrared imaging signal output part linking number weighted-voltage D/A converter (1.5) of processor (1.1).
3. the infreared imaging device of miniaturization according to claim 1, it is characterized in that: described prober interface module (3) also includes source filter (3.3), analog to digital conversion and temperature control module (4) also comprise passive filter (4.3), and the analog video signal output terminal of described non-refrigerated infrared focal plane probe (3.2) passes through the analog video signal input end of active filter (3.3) and passive filter (4.3) connection mode number converter (4.2) successively.
4. the infreared imaging device of miniaturization according to claim 1, is characterized in that: described processor (1.1) is field programmable gate array processor.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466573A (en) * | 2015-12-05 | 2016-04-06 | 中国航空工业集团公司洛阳电光设备研究所 | A medium-long wave two-waveband thermal infrared imager |
| CN105547486A (en) * | 2015-12-05 | 2016-05-04 | 中国航空工业集团公司洛阳电光设备研究所 | Cooled three-field infrared thermal imager |
| CN106454274A (en) * | 2016-11-29 | 2017-02-22 | 上海航天测控通信研究所 | Surveillance camera system adapting to special environment |
| CN106500849A (en) * | 2016-12-09 | 2017-03-15 | 国家电网公司 | A kind of infrared imaging temperature measuring sensor |
| CN106569525A (en) * | 2016-10-28 | 2017-04-19 | 北京航天控制仪器研究所 | Digital constant-temperature control circuit applied to moving base gravimeter |
| CN106941592A (en) * | 2017-04-15 | 2017-07-11 | 四川新三甲电子科技有限公司 | IR night vision apparatus and system |
| CN106959711A (en) * | 2017-05-11 | 2017-07-18 | 江苏北方湖光光电有限公司 | Suppress the control system and method for infrared focus plane temperature anomaly |
| CN111654648A (en) * | 2020-05-29 | 2020-09-11 | 红鼎互联(广州)信息科技有限公司 | Image processing method for uncooled infrared focal plane detector |
| CN112254826A (en) * | 2020-09-02 | 2021-01-22 | 哈尔滨新光光电科技股份有限公司 | Thermal infrared imager temperature control system for restraining detector temperature drift |
| CN112787668A (en) * | 2020-12-28 | 2021-05-11 | 中国科学院长春光学精密机械与物理研究所 | Medium wave infrared detector imaging driving device |
| CN113125011A (en) * | 2021-03-12 | 2021-07-16 | 中国科学院西安光学精密机械研究所 | Medium wave infrared Hadamard aperture coding spectrum high frame frequency imaging circuit |
| CN113253777A (en) * | 2021-04-16 | 2021-08-13 | 北京空间机电研究所 | Coarse-fine composite temperature measurement and control system of infrared detector |
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2015
- 2015-06-29 CN CN201520453176.2U patent/CN204705413U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547486A (en) * | 2015-12-05 | 2016-05-04 | 中国航空工业集团公司洛阳电光设备研究所 | Cooled three-field infrared thermal imager |
| CN105466573A (en) * | 2015-12-05 | 2016-04-06 | 中国航空工业集团公司洛阳电光设备研究所 | A medium-long wave two-waveband thermal infrared imager |
| CN106569525A (en) * | 2016-10-28 | 2017-04-19 | 北京航天控制仪器研究所 | Digital constant-temperature control circuit applied to moving base gravimeter |
| CN106454274B (en) * | 2016-11-29 | 2019-07-19 | 上海航天测控通信研究所 | A kind of surveillance camera system adapting to particular surroundings |
| CN106454274A (en) * | 2016-11-29 | 2017-02-22 | 上海航天测控通信研究所 | Surveillance camera system adapting to special environment |
| CN106500849A (en) * | 2016-12-09 | 2017-03-15 | 国家电网公司 | A kind of infrared imaging temperature measuring sensor |
| CN106941592A (en) * | 2017-04-15 | 2017-07-11 | 四川新三甲电子科技有限公司 | IR night vision apparatus and system |
| CN106959711A (en) * | 2017-05-11 | 2017-07-18 | 江苏北方湖光光电有限公司 | Suppress the control system and method for infrared focus plane temperature anomaly |
| CN106959711B (en) * | 2017-05-11 | 2018-12-25 | 江苏北方湖光光电有限公司 | Inhibit the control system and method for infrared focus plane temperature anomaly |
| CN111654648A (en) * | 2020-05-29 | 2020-09-11 | 红鼎互联(广州)信息科技有限公司 | Image processing method for uncooled infrared focal plane detector |
| CN112254826A (en) * | 2020-09-02 | 2021-01-22 | 哈尔滨新光光电科技股份有限公司 | Thermal infrared imager temperature control system for restraining detector temperature drift |
| CN112787668A (en) * | 2020-12-28 | 2021-05-11 | 中国科学院长春光学精密机械与物理研究所 | Medium wave infrared detector imaging driving device |
| CN113125011A (en) * | 2021-03-12 | 2021-07-16 | 中国科学院西安光学精密机械研究所 | Medium wave infrared Hadamard aperture coding spectrum high frame frequency imaging circuit |
| CN113125011B (en) * | 2021-03-12 | 2022-07-19 | 中国科学院西安光学精密机械研究所 | Medium wave infrared Hadamard aperture coding spectrum high frame frequency imaging circuit |
| CN113253777A (en) * | 2021-04-16 | 2021-08-13 | 北京空间机电研究所 | Coarse-fine composite temperature measurement and control system of infrared detector |
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