CN116017122A - Imaging movement circuit of low-light digital sighting telescope and sighting telescope - Google Patents
Imaging movement circuit of low-light digital sighting telescope and sighting telescope Download PDFInfo
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Abstract
The application relates to the technical field of low-light sighting telescope, in particular to a low-light digital sighting telescope imaging movement circuit and a sighting telescope, comprising: the sensor imaging driving circuit comprises a CMOS sensor and realizes the conversion of photoelectric signals; the FPGA processing circuit comprises an FPGA chip and is used for processing the electric signals output by the CMOS sensor imaging driving circuit; the power supply and interface circuit comprises a power supply management module and an interface conversion module, wherein the power supply management module is used for supplying power to the imaging core circuit, and the interface conversion module is used for outputting and displaying the image data processed by the FPGA chip and simultaneously receiving and sending the input information to the FPGA chip for processing; the FPGA processing circuit is respectively connected with the sensor imaging driving circuit, the power supply and the interface circuit by adopting flexible soft boards, so that the imaging movement circuit of the micro-light digital sighting telescope is simplified, the size is small, the weight is light, the power consumption is low, the disassembly and the assembly are easy, and the noise interference of the movement circuit is reduced.
Description
Technical Field
The application belongs to the technical field of low-light sighting telescope, and particularly relates to a low-light digital sighting telescope imaging movement circuit and a sighting telescope.
Background
The micro-light sighting telescope is mainly applied to environments lacking illumination, such as night or darkroom, and the like, has wide application in the military and civil fields, can be used as single-soldier equipment for auxiliary observation, detection and aiming in military use, and can be assembled on vehicles such as tanks and the like for auxiliary driving. The system can be used for detecting food and medicine which cannot be seen by the visible light in the video monitoring system of roads and cities day and night. According to the difference of application environments and the difference of selecting imaging devices, the micro-light observation mirror is mainly divided into an image intensifier observation mirror, an infrared observation mirror and a micro-light digital observation mirror at present, compared with the image intensifier observation mirror and the infrared observation mirror, the micro-light digital observation mirror adopts a CMOS/EMCCD sensor, has small size and low cost, meets the daily universality, accords with the observation habit of human eyes, does not need timing correction, can record images in real time and has strong expandability.
At present, the existing low-light imaging circuit is mainly realized by functions, the anti-interference capability and noise consideration of the machine core imaging are insufficient, a conventional DC device is generally selected, the power supply mode is simple, effective isolation among power supply modules is not available, the noise ratio is large, the imaging capability is reduced, and the rear-end image recognition processing is not facilitated. Therefore, how to simplify the imaging engine circuit, reduce the size and weight, and reduce noise interference is a problem to be solved.
Disclosure of Invention
An object of one or more embodiments of the present disclosure is to provide a micro-light digital sighting telescope imaging movement circuit and a sighting telescope, which achieve simplified circuit, small size, light weight, low power consumption, easy disassembly and assembly, and simultaneously minimize noise interference of the movement circuit.
To solve the above technical problems, one or more embodiments of the present specification are implemented as follows:
in a first aspect, a micro-optic digital viewfinder imaging cartridge circuit is provided, comprising: the sensor imaging driving circuit comprises a CMOS sensor and realizes the conversion of photoelectric signals; the FPGA processing circuit comprises an FPGA chip and is used for processing the electric signals output by the CMOS sensor imaging driving circuit; the power supply and interface circuit comprises a power supply management module and an interface conversion module, wherein the power supply management module is used for supplying power to the imaging core circuit, and the interface conversion module is used for outputting and displaying the image data processed by the FPGA chip, and simultaneously receiving and sending the input information to the FPGA chip for processing; the FPGA processing circuit is respectively connected with the sensor imaging driving circuit and the power supply and interface circuit by adopting a flexible soft board.
In a second aspect, a low-light digital viewing mirror is proposed, comprising an imaging cartridge circuit according to the above.
As can be seen from the technical solutions provided by one or more embodiments of the present disclosure, the design of the imaging movement circuit of the micro-optic digital sighting telescope provided by the embodiments of the present disclosure is simplified, the movement circuit includes a sensor imaging driving circuit, and a CMOS sensor included therein implements conversion of photoelectric signals; the FPGA chip is included in the FPGA processing circuit and is used for processing the electric signals output by the CMOS sensor imaging driving circuit; the power supply and interface circuit comprises a power supply management module and an interface conversion module, wherein the power supply management module is used for supplying power to the imaging core circuit, and the interface conversion module is used for outputting and displaying the image data processed by the FPGA chip and simultaneously receiving and sending the input information to the FPGA chip for processing; the FPGA processing circuit is respectively connected with the sensor imaging driving circuit, the power supply and the interface circuit by adopting a flexible soft board. The whole circuit adopts a rigid-radius plate structure consisting of 3 rigid circuit boards and 2 flexible soft boards, so that the size of the movement is reduced as much as possible. The imaging machine core circuit of the micro-light digital sighting telescope has the advantages of small size, light weight, low power consumption and easy disassembly and assembly, and simultaneously reduces noise interference of the machine core circuit as much as possible, thereby being particularly suitable for application scenes of individual combat.
Drawings
For a clearer description of one or more embodiments of the present description or of the solutions of the prior art, reference will be made below to the accompanying drawings which are used in the description of one or more embodiments or of the prior art, it being apparent that the drawings in the description below are only some of the embodiments described in the description, from which, without inventive faculty, other drawings can also be obtained for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a micro-optic digital sighting telescope imaging core circuit provided by an embodiment of the invention.
Fig. 2 is a schematic diagram of a micro-optic digital sighting telescope imaging core circuit provided according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a control circuit of a sensor imaging driving circuit in a micro-optic digital sighting telescope imaging machine core circuit provided by the embodiment of the invention.
Fig. 4 is a schematic circuit diagram of a 1.8V power supply unit for an analog circuit in a sensor imaging driving circuit in a micro-optic digital sighting telescope imaging machine core circuit according to an embodiment of the present invention.
Fig. 5 is a schematic circuit diagram of a 3.3V power supply unit for an analog circuit in a sensor imaging driving circuit in a micro-optic digital sighting telescope imaging machine core circuit according to an embodiment of the present invention.
Fig. 6 is a schematic circuit diagram of a digital circuit and an AD power supply unit in a sensor imaging driving circuit in a micro-optic digital sighting telescope imaging machine core circuit according to an embodiment of the present invention.
Fig. 7 is a schematic circuit diagram of a phase-locked loop and a pixel power supply unit in a sensor imaging driving circuit in a micro-optic digital sighting telescope imaging machine core circuit according to an embodiment of the present invention.
Fig. 8 is a schematic circuit diagram of one of BIAS circuits of a sensor imaging driving circuit in a micro-optic digital scope imaging cartridge circuit according to an embodiment of the present invention.
Fig. 9 is a schematic circuit diagram of one of BIAS circuits of a sensor imaging driving circuit in a micro-optic digital scope imaging cartridge circuit according to an embodiment of the present invention.
Fig. 10 is a schematic circuit diagram of one of BIAS circuits of a sensor imaging driving circuit in a micro-optic digital scope imaging cartridge circuit according to an embodiment of the present invention.
Fig. 11 is a schematic circuit diagram of one of BIAS circuits of a sensor imaging driving circuit in a micro-optic digital scope imaging cartridge circuit according to an embodiment of the present invention.
Fig. 12 is a schematic circuit diagram of a system with a minimum size of an FPGA processing circuit in a micro-optic digital scope imaging cartridge circuit according to an embodiment of the present invention.
Fig. 13 is a schematic diagram of a boost circuit of a power supply management module in a micro-optic digital sighting telescope imaging machine core circuit according to an embodiment of the present invention.
Fig. 14 is a schematic diagram of a WIFI output interface in an interface conversion module in a micro-optic digital viewfinder imaging movement circuit according to an embodiment of the present invention.
Fig. 15 is a schematic diagram of key operation function in an interface conversion module in a micro-optic digital sighting telescope imaging core circuit according to an embodiment of the present invention.
Fig. 16 is a schematic diagram of a function of a knob in an interface conversion module in a micro-optic digital sighting telescope imaging cartridge circuit according to an embodiment of the present invention.
Fig. 17 is a schematic circuit diagram of a voltage dividing processing unit of a power supply management module in a micro-light digital sighting telescope imaging machine core circuit according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the technical solutions in this specification, a clear and complete description of the technical solutions in one or more embodiments of this specification will be provided below with reference to the accompanying drawings in one or more embodiments of this specification, and it is apparent that the one or more embodiments described are only a part of embodiments of this specification, not all embodiments. All other embodiments, which can be made by one or more embodiments of the present disclosure without inventive faculty, are intended to be within the scope of the present disclosure.
The circuit design scheme of the imaging movement of the low-light digital sighting telescope provided by the embodiment of the invention is simplified, the effects of small circuit size, light weight, low power consumption, easy disassembly and assembly and noise interference reduction of the imaging movement of the low-light digital sighting telescope are realized, and the imaging movement of the low-light digital sighting telescope is particularly suitable for application scenes of individual combat. The micro-optic digital scope imaging cartridge circuit and its various parts provided in this specification will be described in detail below.
Example 1
Referring to fig. 1, a micro-light digital sighting telescope imaging movement circuit provided by an embodiment of the present invention includes: the sensor imaging driving circuit, the FPGA processing circuit, the power supply and the interface circuit. The FPGA processing circuit is respectively connected with the sensor imaging driving circuit, the power supply and the interface circuit by adopting flexible soft boards, and is of a rigid-radius board structure. Therefore, the whole circuit system adopts a miniaturized design and consists of 3 rigid circuit boards and 2 flexible soft boards, the space occupied by the inter-board connector is saved, the size of each circuit board is a circular board with phi 30mm, the thickness of the board is 1.6mm, the board spacing is 5mm, the height of the reference components is equal to phi 30mm multiplied by 20mm, and the whole movement size meets the requirement of miniaturized structure size.
The sensor imaging driving circuit comprises a CMOS sensor, realizes the conversion of photoelectric signals, and the circuit imaging sensor is selected from a scientific CMOS chip which is customized independently. The CMOS chip eliminates redundant circuits in design, and imaging power consumption is greatly reduced. The requirements of low power consumption and miniaturization are met while the performance is met, and the specific parameters of the CMOS sensor are as follows:
table 1 custom CMOS sensor parameters
The sensor imaging driving circuit mainly utilizes a CMOS sensor to convert an optical signal into an electric signal. In order to fully adapt to the low power consumption and miniaturization requirements of the micro-light digital sighting telescope, a scientific CMOS sensor is customized, and the design, flow sheet and packaging of the sensor are finished in China and are completely independent and controllable.
The FPGA processing circuit comprises an FPGA chip and processes the electric signals output by the CMOS sensor imaging driving circuit. The FPGA processing circuit adopts a single FPGA with high processing speed, small size and low power consumption as a core processor, and reduces the size and the power consumption of a circuit board as much as possible while meeting the real-time performance.
The power supply and interface circuit comprises a power supply management module and an interface conversion module, wherein the power supply management module is used for supplying power to the imaging core circuit, and the interface conversion module is used for outputting and displaying the image data processed by the FPGA chip and simultaneously receiving and sending the input information to the FPGA chip for processing.
All the chips of the micro-light digital sighting telescope imaging machine core circuit provided by the embodiment select to remove redundant circuits as far as possible on the premise of meeting functions and performances, and meet the requirements of low power consumption and small space size. After the power supply management module supplies power to the whole movement, the CMOS sensor starts working under the action of the sensor imaging driving circuit, the image data is input to the FPGA processing circuit after photoelectric conversion, and the FPGA chip outputs the image meeting the format requirement to the interface circuit after corresponding time sequence conversion and data caching processing.
The invention provides a micro-light digital sighting telescope imaging machine core circuit which is assembled on a sighting telescope shell and is used for converting optical signals under micro light in a field of view into electric signals, and then the electric signals are processed at high speed by an FPGA chip to finish various subsequent display and recording functions. The micro-light digital sighting telescope imaging machine core circuit is suitable for application scenes of individual combat, and has the effects of small size, light weight, low power consumption, simplified circuit, easy disassembly and assembly and noise interference reduction.
Alternatively, as shown in fig. 2, the sensor imaging driving circuit provided in this embodiment further includes: the power supply unit is used for supplying power to the CMOS sensor, and the time sequence driving unit and the data output unit are driven by the FPGA chip.
The power supply unit is used as an extension of the power supply management module to realize the power supply of the sensor imaging driving circuit. The time sequence driving unit comprises a BIAS circuit and a control circuit (figure 3) in the sensor imaging driving circuit, and the time sequence driving unit and the data output unit are controlled by the FPGA chip and perform data transmission.
The power supply unit may include analog circuits, digital circuits, phase locked loops, pixel power supplies, and the like. The power supply modules of the circuits are powered by one or two DC power supplies together to generate interference, so that imaging noise is large, anti-interference capability is poor, imaging quality is poor.
Optionally, the micro light digital sighting telescope imaging core circuit provided by the embodiment adopts a micro LDO to supply power to the power supply unit, the micro LDO selects an TPS7a20 series chip X2SON package, the size is only 1mm×1mm, the low-voltage difference and the low-noise load current can reach 300mA, the TPS7a20 series chip can reduce noise interference such as ripple wave, and the ultra-low noise of about 7 mu VRMS is output under the condition of no noise bypass capacitance.
Optionally, in the micro-light digital sighting telescope imaging core circuit provided in this embodiment, in order to meet requirements of current absorption and discharge flow of power supply of the CMOS sensor pixel, the BIAS circuit adopts an operational amplifier circuit to realize voltage conversion, as shown in fig. 8-11, the operational amplifier circuit adopts an MCP6001 chip SOT23 package, and the size is only 2mm×2.1mm, and the micro-light digital sighting telescope imaging core circuit has the characteristics of high bandwidth and low power consumption.
Optionally, in the micro-light digital sighting telescope imaging machine core circuit provided by the embodiment, a power supply voltage conversion module of the FPGA processing circuit adopts a DC power supply conversion module, and the DC power supply conversion module has high efficiency and small size, so that the power loss is reduced under the condition of ensuring normal power supply of the circuit.
The FPGA processing circuit comprises a DDR buffer memory, and the FPGA chip processes the electric signals output by the CMOS sensor imaging driving circuit into image data and stores the image data into the DDR buffer memory; and/or the FPGA chip calls the image data from the DDR cache, processes the image data and outputs the processed image data to the interface conversion circuit. As shown in fig. 12, the FPGA processing circuit further includes an FPGA chip, a crystal oscillator, a FLASH, and a voltage conversion circuit (see fig. 17), where the crystal oscillator provides a source clock for the normal operation of the FPGA, the FLASH is used for program curing and loading of the FPGA, and the voltage conversion circuit is used for powering the FPGA core, JTAG (for downloading files), and IO pins. The FPGA processing circuit mainly realizes the following functions: the method comprises the steps of receiving LVDS image data output by a CMOS sensor, forming an image with 800 multiplied by 600 resolution after serial-parallel conversion, storing the image into a DDR buffer, and calling the buffer image data by an FPGA (field programmable gate array) to perform automatic dimming control, noise removal, image gray enhancement and image format conversion output; and simultaneously, menu function control is completed according to the input signal of the knob. Fig. 12 shows a system circuit with the smallest size of the FPGA processing circuit, and the crystal oscillator and the FLASH are small-sized and low-power chips. FLASH model N25Q128A13ESE40F adopts SPI protocol, supports maximum 108MHz read-write clock frequency, and is a 128Mbit mass memory. The model of the crystal oscillator is SG3225CAN100MHz of EPSON company, the output frequency is 100MHz, the error is within +/-25, and the miniature package of 3.2mm multiplied by 2.5mm is adopted.
Optionally, in the micro-light digital sighting telescope imaging core circuit provided in this embodiment, the power supply management module adopts TPS61236 chip VQFN package to complete boost conversion. After the switch key of the glimmer digital sighting telescope is pressed for 3 seconds for a long time, a lithium battery or an external power supply is input, and the voltage of the lithium battery is about 4.2V under the condition of full power and about 2.8V under the condition of no power, so that the voltage of the battery can be gradually reduced under the condition of continuous operation of a circuit, the normal 3.3V power supply requirement of the circuit cannot be always met in the working process, and the battery cannot be treated as no-power treatment when the voltage of the battery is reduced to 3.3V (the electric quantity of the battery is not fully utilized). Therefore, the power supply management module adopts TPS61236 chip to complete boost conversion and boost the voltage of the lithium battery to DC5V, the chip adopts VQFN package, the size is only 2.5mm multiplied by 2.5mm, the boost conversion efficiency reaches 97%, and fig. 13 is a specific boost circuit schematic diagram.
Optionally, the micro light digital sighting telescope imaging machine core circuit provided in this embodiment, the power supply management module further includes a voltage division processing unit, and the voltage division processing unit adopts a micro voltage converter LTM4644 chip to perform voltage division processing. The imaging machine core circuit of the micro light digital sighting telescope needs various power supply and driving voltages, so that the boosted DC5V voltage needs to be subjected to voltage division treatment, a power supply management module adopts a large-current and multi-output miniature voltage converter LTM4644 chip to carry out voltage division treatment, the specific size of the LTM4644 chip is 9mm multiplied by 15mm, the inductor is packaged inside the LTM4644 chip, 4 paths of power supply output can be simultaneously met, the maximum current of each path can reach 3A, and the voltage conversion efficiency reaches more than 90%. As shown in FIG. 17, the 1 st and 2 nd paths of combined output voltages are 1.0V, so that power is supplied to the FPGA chip core, and 5A can be achieved due to the fact that the instantaneous current of the FPGA chip core is very high, the power is supplied in a two-path combined mode, the 3 rd path of output voltages are 1.8V, the configuration of an FPGA processing circuit is supplied, and the 4 th path of output voltages are 3.3V, so that power is supplied to FLASH, DDR, crystal oscillator, IO of the FPGA, WIFI, PAL interfaces and OLED.
The micro light digital sighting telescope imaging machine core circuit and the power supply management module provided by the embodiment output the boosted DC5V voltage to the power supply unit of the sensor imaging driving circuit, realize the voltage division processing of 4.5V, 3.5V, 2.1V and-1.5V by using two miniature, low-power-consumption and low-noise DC chips of TPS62240 and LM27761, and respectively use the voltages for the power supply input of the micro LDO and BIAS circuit operational amplifier of the sensor imaging driving circuit.
Optionally, in the micro-light digital sighting telescope imaging core circuit provided by this embodiment, the interface conversion module includes an OLED output interface, a PAL output interface and/or a WIFI output interface, the OLED output interface is connected with the OLED screen through an FFC soft flat cable, the PAL output interface selects a standard video coding chip CH7026 to perform format conversion processing, the OLED output interface and the PAL output interface communicate with the FPGA chip through IIC buses respectively, the WIFI output interface includes a 3181A module in a 2.4±0.1GHz band, the FPGA chip initializes the WIFI output interface through a UART serial port, and then inputs a video to the WIFI output interface through an SDIO high-speed interface.
The interface conversion module is a process for realizing man-machine interaction and is used for multiplexing and displaying the processed image data, and meanwhile, the input key and knob information is used for completing the control of the movement. The interface conversion module mainly comprises an OLED output interface, a PAL output interface, WIFI output and key control, and the following specific description is sequentially carried out:
the OLED screen can be selected from a miniature LED display screen SVGA050SC of an Orrad company in the North of Yunnan, has the characteristics of low power consumption, small size, high resolution and high brightness, and is suitable for being applied to individual soldiers and miniaturized equipment. And finally, the imaging video of the micro-light digital sighting telescope is reflected on a terminal screen for artificial observation, and the OLED screen is the terminal screen. A screen with 0.6 inch can be selected, the FPGA chip is in communication configuration through an IIC bus, 16/24bit parallel video data is supported, and the power consumption is only required to be 0.08W.
The OLED screen and the OLED output interface are connected through an FFC flexible flat cable, after the deck circuit is powered on, the FPGA initializes the OLED screen through an IIC bus, then 24bit parallel data are output to the OLED screen for display according to a line-field protocol, and in the video display process, parameters such as brightness, contrast and the like of the OLED screen are adjusted in real time through configuration of the IIC.
The PAL output interface is an expansion interface of the micro-light sighting telescope movement circuit, can be connected to a helmet display and a command hall display screen through a cable and a repeater, and is used for multi-person auxiliary observation, combined exercise and combat command and the like. The PAL output interface is designed and used by a standard video coding chip CH7026, the external dimension of the CH7026 chip is 6mm multiplied by 5mm BGA package, the power consumption is only 0.18W, and the requirements of small size and low power consumption are met. After the time sequence is logically adjusted through an FPGA chip, 24bit/16bit/8bit RGB/YCbCr parallel digital image data is input to a CH7026 chip, and an internal register of the CH7026 chip is set through an IIC interface to adjust the working mode and parameters of the digital image data, such as video input resolution, frame frequency and the like; the standard analog PAL-D system is converted by using a CH7026 chip. The maximum resolution of digital image data input by a CH7026 chip supports 1024 x 680, and 16Mbit SDRAM buffer memory is integrated internally, so that the full frame data buffer memory and resolution adjustment are completed, and the image input with multiple resolutions and frame frequencies is supported. When the PAL output function is not used, the PAL interface power consumption can be reduced by selecting to close through a knob menu.
The WIFI output interface is a wireless expansion interface of the micro-light sighting telescope movement circuit, can be connected with a display terminal such as a helmet display and a mobile phone in a certain distance, and is used for multi-person auxiliary observation, combined exercise combat command and the like. The WIFI module selects 3181A module with the frequency band of 2.4+/-0.1 GHz, the external dimension is 12mm multiplied by 12m multiplied by 2.3mm, the WIFI module can be effectively integrated on a circuit board, the sending power consumption is 0.288W, the IEEE 802.11b/g/n baseband and radio frequency circuit are supported, and the SPI, UART, I2C, PWM, GPIO and SDIO and other various input interfaces are supported. After the micro-light sighting telescope machine core circuit is powered on, the FPGA chip initializes the WIFI interface through the UART serial port, then video input is achieved through the SDIO high-speed interface, the WIFI module carries out H265 compression processing on input data, then the input data is sent out through wireless, fig. 14 is a circuit block diagram of the WIFI module controlled by the FPGA chip, and the micro-light sighting telescope imaging machine core circuit can be provided with on/off of the WIFI module so as to reduce power consumption. The PAL output interface and the WIFI output interface are both designed by selecting chips with small size and low power consumption, a switch type design is selected in the working process of the micro-optical sighting telescope imaging machine core circuit, the PAL/WIFI is started when needed, and otherwise, the PAL/WIFI is closed, so that the extra power consumption is greatly reduced.
Optionally, the micro-light digital sighting telescope imaging movement circuit provided in this embodiment, the interface conversion module further includes a key and/or a knob, and the key is a non-self-locking key. As individual equipment, the sighting telescope needs to be turned on or off before and after use and in the use process, and a series of parameter selection and key operation are needed, and specifically comprises screen brightness adjustment, contrast adjustment, division adjustment, exposure, WIFI switch, PAL switch, image scaling, image enhancement and the like, so that a knob or a key is needed to complete corresponding functions. In the application, a non-self-locking key and a knob are configured for a micro-light sighting telescope imaging machine core circuit, and the power consumption is negligible because the key and the knob are directly connected to an IO pin of an FPGA. The FPGA chip can trigger corresponding functions according to the duration of pressing only by pressing the key, so that the functions of long-press startup and shutdown and short-press return or exit are completed. The knob has three operations of clockwise rotation, counterclockwise rotation and pressing, and is mainly used for front and rear traversal selection and confirmation functions of the menu, and fig. 15 and 16 specifically describe the key knob control function.
As can be seen from the above analysis, the design scheme of the micro-light digital sighting telescope imaging movement circuit provided by the embodiment of the invention is simplified, the movement circuit comprises a sensor imaging driving circuit, and a CMOS sensor included in the movement circuit realizes the conversion of photoelectric signals; the FPGA chip is included in the FPGA processing circuit and is used for processing the electric signals output by the CMOS sensor imaging driving circuit; the power supply and interface circuit comprises a power supply management module and an interface conversion module, wherein the power supply management module is used for supplying power to the imaging core circuit, and the interface conversion module is used for outputting and displaying the image data processed by the FPGA chip and simultaneously receiving and sending the input information to the FPGA chip for processing; the FPGA processing circuit is respectively connected with the sensor imaging driving circuit, the power supply and the interface circuit by adopting a flexible soft board. The whole circuit can be seen to adopt the rigid-radius plate structure formed by 3 rigid circuit boards and 2 flexible soft boards, the flexible soft boards and the PCB are integrally formed, a connector can be omitted, the folding is realized, and the size of the movement is reduced. The imaging machine core of the micro-light digital sighting telescope has the advantages of small circuit size, light weight, low power consumption, easy disassembly and assembly and low noise interference, and is particularly suitable for application scenes of individual combat.
Example two
The embodiment provides a glimmer digital sighting telescope, which comprises the imaging movement circuit. This shimmer digit sight imaging core circuit includes: the sensor imaging driving circuit, the FPGA processing circuit, the power supply and the interface circuit. The FPGA processing circuit is respectively connected with the sensor imaging driving circuit, the power supply and the interface circuit by adopting flexible soft boards, and is of a rigid-radius board structure. Therefore, the whole circuit system adopts a miniaturized design and consists of 3 rigid circuit boards and 2 flexible soft boards, the space occupied by the inter-board connector is saved, the size of each circuit board is a circular board with phi 30mm, the thickness of the board is 1.6mm, the board spacing is 5mm, the height of the reference components is equal to phi 30mm multiplied by 20mm, and the whole movement size meets the requirement of miniaturized structure size.
The sensor imaging driving circuit comprises a CMOS sensor, realizes the conversion of photoelectric signals, and the circuit imaging sensor is selected from a scientific CMOS chip which is customized independently. The CMOS chip eliminates redundant circuits in design, and imaging power consumption is greatly reduced. The requirements of low power consumption and miniaturization are met while the performance is met, and the specific parameters of the CMOS sensor are as follows:
table 1 custom CMOS sensor parameters
The sensor imaging driving circuit mainly utilizes a CMOS sensor to convert an optical signal into an electric signal. In order to fully adapt to the low power consumption and miniaturization requirements of the micro-light digital sighting telescope, a scientific CMOS sensor is customized, and the design, flow sheet and packaging of the sensor are finished in China and are completely independent and controllable.
The FPGA processing circuit comprises an FPGA chip and processes the electric signals output by the CMOS sensor imaging driving circuit. The FPGA processing circuit adopts a single FPGA with high processing speed, small size and low power consumption as a core processor, and reduces the size and the power consumption of a circuit board as much as possible while meeting the real-time performance.
The power supply and interface circuit comprises a power supply management module and an interface conversion module, wherein the power supply management module is used for supplying power to the imaging core circuit, and the interface conversion module is used for outputting and displaying the image data processed by the FPGA chip and simultaneously receiving and sending the input information to the FPGA chip for processing;
all the chips of the micro-light digital sighting telescope imaging machine core circuit provided by the embodiment select to remove redundant circuits as far as possible on the premise of meeting functions and performances, and meet the requirements of low power consumption and small space size. After the power supply management module supplies power to the whole movement, the CMOS sensor starts working under the action of the sensor imaging driving circuit, the image data is output to the FPGA processing circuit after photoelectric conversion, and the FPGA chip outputs the image meeting the format requirement to the interface circuit after corresponding time sequence conversion and data caching processing.
According to the analysis, the imaging core circuit of the low-light digital sighting telescope provided by the embodiment of the invention is assembled on the casing of the sighting telescope and is used for converting optical signals to electric signals in a low-light environment in a field of view, and then the electric signals are processed at a high speed through the FPGA chip, so that various subsequent display and recording functions are completed. The design scheme of the micro-light digital sighting telescope imaging machine core circuit provided by the embodiment of the invention is simplified, the machine core circuit comprises a sensor imaging driving circuit, and a CMOS sensor is included in the machine core circuit to realize the conversion of photoelectric signals; the FPGA chip is included in the FPGA processing circuit and is used for processing the electric signals output by the CMOS sensor imaging driving circuit; the power supply and interface circuit comprises a power supply management module and an interface conversion module, wherein the power supply management module is used for supplying power to the imaging core circuit, and the interface conversion module is used for outputting and displaying the image data processed by the FPGA chip and simultaneously receiving and sending the input information to the FPGA chip for processing; the FPGA processing circuit is respectively connected with the sensor imaging driving circuit, the power supply and the interface circuit by adopting a flexible soft board. The whole circuit can be seen to adopt the rigid-radius plate structure formed by 3 rigid circuit boards and 2 flexible soft boards, so that the effect that the micro-light digital sighting telescope imaging machine core circuit is small in size, light in weight, low in power consumption, easy to assemble and disassemble and low in noise interference is achieved, and the micro-light digital sighting telescope imaging machine core circuit is particularly suitable for application scenes of individual combat.
In summary, the foregoing description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present specification should be included in the protection scope of the present specification.
The systems, devices, modules, or units illustrated in one or more of the embodiments described above may be implemented in particular by a computer chip or entity, or by a product having some function. One typical implementation is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
Claims (10)
1. A micro-optic digital sighting telescope imaging machine core circuit, which is characterized by comprising:
the sensor imaging driving circuit comprises a CMOS sensor and realizes the conversion of photoelectric signals;
the FPGA processing circuit comprises an FPGA chip and is used for processing the electric signals output by the CMOS sensor imaging driving circuit;
the power supply and interface circuit comprises a power supply management module and an interface conversion module, wherein the power supply management module is used for supplying power to the imaging core circuit, and the interface conversion module is used for outputting and displaying the image data processed by the FPGA chip, and simultaneously receiving and sending the input information to the FPGA chip for processing;
the FPGA processing circuit is respectively connected with the sensor imaging driving circuit and the power supply and interface circuit by adopting a flexible soft board.
2. The micro-optic digital scope imaging cartridge circuit of claim 1, wherein the sensor imaging drive circuit further comprises: the power supply unit supplies power for the CMOS sensor, and the time sequence driving unit and the data output unit are driven by the FPGA chip.
3. The micro-optic digital sighting telescope imaging core circuit of claim 2, wherein the power supply unit is powered by a micro LDO, and the micro LDO selects TPS7a20 series chip X2SON package.
4. The micro-light digital sighting telescope imaging core circuit of claim 2, wherein the power supply unit adopts an operational amplifier circuit to realize voltage conversion, and the operational amplifier circuit adopts an MCP6001 chip SOT23 package.
5. The micro-optic digital scope imaging cartridge circuit of any one of claims 1 to 4, wherein a DC power conversion module is used for the power supply voltage conversion module of the FPGA processing circuit.
6. The micro-optic digital viewfinder imaging cartridge circuit of claim 5, wherein the power supply management module employs TPS61236 chip VQFN packaging to complete boost conversion.
7. The micro light digital sighting telescope imaging machine core circuit of claim 6, wherein the power supply management module further comprises a voltage division processing unit, and the voltage division processing unit adopts a micro voltage converter LTM4644 chip to perform voltage division processing.
8. The micro-light digital sighting telescope imaging machine core circuit according to claim 5, wherein the interface conversion module comprises an OLED output interface, a PAL output interface and/or a WIFI output interface, the OLED output interface is connected with an OLED screen through an FFC soft flat cable, the PAL output interface is subjected to format conversion processing by using a standard video coding chip CH7026, the OLED output interface and the PAL output interface are respectively communicated with an FPGA chip through an IIC bus, the WIFI output interface comprises a 3181A module with the frequency band of 2.4+/-0.1 GHz, the FPGA chip initializes the WIFI output interface through a UART serial port, and then video is input to the WIFI output interface through an SDIO high-speed interface.
9. The micro-optic digital viewfinder imaging cartridge circuit of claim 1, wherein the interface conversion module further comprises a key and/or a knob, the key being a non-self-locking key.
10. A microlight digital telescope, characterized by comprising a microlight digital telescope imaging cartridge circuit according to any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310281302.XA CN116017122A (en) | 2023-03-22 | 2023-03-22 | Imaging movement circuit of low-light digital sighting telescope and sighting telescope |
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| CN202310281302.XA CN116017122A (en) | 2023-03-22 | 2023-03-22 | Imaging movement circuit of low-light digital sighting telescope and sighting telescope |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778209A (en) * | 2010-01-28 | 2010-07-14 | 无锡蓝天电子有限公司 | Modular CMOS industrial camera |
| JP2012089920A (en) * | 2010-10-15 | 2012-05-10 | Hitachi Kokusai Electric Inc | Image pick-up device |
| US20150334864A1 (en) * | 2014-05-13 | 2015-11-19 | Hand Held Products, Inc. | Indicia-Reading Module with an Integrated Flexible Circuit |
| CN108154494A (en) * | 2017-12-25 | 2018-06-12 | 北京航空航天大学 | A kind of image fusion system based on low-light and infrared sensor |
| CN108174061A (en) * | 2017-12-12 | 2018-06-15 | 北京航天计量测试技术研究所 | A kind of small-sized integrated rigid flexible system imaging circuit |
| CN110602413A (en) * | 2019-09-04 | 2019-12-20 | 长春奥普光电技术股份有限公司 | Low-light-level night vision imaging system |
| CN210867929U (en) * | 2019-12-27 | 2020-06-26 | 中国科学院西安光学精密机械研究所 | SCMOS imaging device |
-
2023
- 2023-03-22 CN CN202310281302.XA patent/CN116017122A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778209A (en) * | 2010-01-28 | 2010-07-14 | 无锡蓝天电子有限公司 | Modular CMOS industrial camera |
| JP2012089920A (en) * | 2010-10-15 | 2012-05-10 | Hitachi Kokusai Electric Inc | Image pick-up device |
| US20150334864A1 (en) * | 2014-05-13 | 2015-11-19 | Hand Held Products, Inc. | Indicia-Reading Module with an Integrated Flexible Circuit |
| CN108174061A (en) * | 2017-12-12 | 2018-06-15 | 北京航天计量测试技术研究所 | A kind of small-sized integrated rigid flexible system imaging circuit |
| CN108154494A (en) * | 2017-12-25 | 2018-06-12 | 北京航空航天大学 | A kind of image fusion system based on low-light and infrared sensor |
| CN110602413A (en) * | 2019-09-04 | 2019-12-20 | 长春奥普光电技术股份有限公司 | Low-light-level night vision imaging system |
| CN210867929U (en) * | 2019-12-27 | 2020-06-26 | 中国科学院西安光学精密机械研究所 | SCMOS imaging device |
Non-Patent Citations (1)
| Title |
|---|
| 高国琴等: "《TMS320C55x DSP应用系统设计》", 北京：北京航空航天大学出版社, pages: 246 - 247 * |
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