CN114666572A - Monitoring device and monitoring method for rapidly positioning intermittent faults of visible light video - Google Patents
Monitoring device and monitoring method for rapidly positioning intermittent faults of visible light video Download PDFInfo
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- CN114666572A CN114666572A CN202210231657.3A CN202210231657A CN114666572A CN 114666572 A CN114666572 A CN 114666572A CN 202210231657 A CN202210231657 A CN 202210231657A CN 114666572 A CN114666572 A CN 114666572A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 8
- 238000012544 monitoring process Methods 0.000 title claims description 69
- 238000000034 method Methods 0.000 title claims description 9
- 238000012545 processing Methods 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 230000002159 abnormal effect Effects 0.000 claims description 24
- 230000005856 abnormality Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 230000008030 elimination Effects 0.000 abstract 2
- 238000003379 elimination reaction Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- 238000013024 troubleshooting Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G3/00—Aiming or laying means
Abstract
The invention discloses a monitoring device for rapidly positioning intermittent faults of visible light video, which comprises: the device comprises an analog-to-digital conversion chip, a CameraLink receiving chip, an FPGA, an LED lamp and a VGA interface chip; the analog-to-digital conversion chip is connected with the FPGA, the FPGA is connected with the LED lamp, a power supply voltage signal of the visible light camera to be monitored is transmitted to the analog-to-digital conversion chip, the converted power supply voltage signal is transmitted to the FPGA for threshold value comparison processing, and whether the power supply of the visible light camera is normal or not is displayed through the lighting state of the LED lamp; the CameraLink receiving chip receives the visible light video, the FPGA performs serial-parallel conversion and time sequence reconstruction, the VGA interface chip converts the visible light video into the VGA video through digital-analog conversion, and the VGA video is output in a VGA form. The scheme improves the fault elimination operability of the miniaturized and high-integration gun sight system, reduces the fault elimination difficulty of the system, and ensures the maintainability of the gun sight system.
Description
Technical Field
The invention belongs to the technical field of intelligent gun sight visible light video, and relates to a monitoring device and a monitoring method for rapidly positioning intermittent faults of visible light video.
Background
A certain intelligent gun sight system is carried on an individual gun, target and environment parameter information are acquired by means of multiple sensors, and the functions of target quick tracking and automatic ballistic calculation are realized through real-time comprehensive processing of a microprocessor on the information, so that day and night shooting precision and intelligent degree of the individual gun are improved, and the intelligent gun sight system has the characteristics of intelligence, miniaturization, high integration level and the like. The observation of a clear scene through visible light imaging and video board rear-end processing is a basic premise and important guarantee that an individual soldier completes target identification and tracking and accurate ballistic shooting, but when the phenomenon that visible light video displayed on an OLED screen is abnormal in the using process, namely, sometimes occurs, the using efficiency of the gun sight is greatly influenced. Therefore, when the phenomenon occurs, the fault point of the visible light video abnormity must be quickly positioned and eliminated so as to ensure the maintainability of the intelligent gun aiming mirror.
The video channel of an intelligent gun sight system is a visible light lens, a visible light processing plate, a video processing plate and an OLED screen, namely the video processing plate (called a video plate for short) collects a visible light video analyzed by the visible light processing plate and displays the visible light video on the OLED screen. Generally, when the continuous display of the video on the screen is abnormal, whether a video source is input can only be judged by checking a self-checking command of a video board, but whether the video source is abnormal or not can not be confirmed. Therefore, the conventional method is to disassemble the visible light camera, test whether the visible light video is normal or not by a single body, and if not, lock the problem; if the video processing board is normal, the fault of the video processing board is further checked. However, when the visible light video is good and bad, it is not significant to separately inspect the single body and the video processing board to determine whether the single body is in an intermittent fault, or whether the video processing board is abnormal, or whether the connector between the visible light camera and the video board is a problem, and the working states of the single body and the video board must be monitored in real time to comprehensively analyze the problem. In addition, due to the characteristics of high integration and miniaturization of the intelligent gun sight, the periphery of the single body is compact in structure and electric tight, the single body is inconvenient to insert and pull out connectors, and the single body is more difficult to disassemble. Therefore, the invention designs a device for monitoring and rapidly positioning the fault point of intermittent abnormality of the visible light video in real time and a using method thereof.
Disclosure of Invention
Objects of the invention
The purpose of the invention is: aiming at the situation that the visible light video of the intelligent gun sight is good and bad when the visible light video appears, because the system space is pretty, the state points of the single body and the video processing board cannot be detected by a meter pen such as a universal meter, an oscilloscope and the like, and in order to accurately locate the fault at the system level in real time, the device and the monitoring method for monitoring and quickly locating the fault point with intermittent abnormality of the visible light video in real time are provided, so that the fault of the visible light or the video processing board is determined.
(II) technical scheme
In order to solve the technical problems, the invention provides a device for monitoring and rapidly positioning intermittent abnormal fault points of visible light videos in real time, which relies on a video monitoring board, a video cable, a power supply cable, a VGA display and other test tools when the visible light videos of a system are good and bad, and simultaneously monitors the working states of a visible light camera and a video board, so as to rapidly position the fault points.
The video monitoring board is mainly used for monitoring the voltage of the visible light camera and the original Camera Link video output state in real time when the visible light video intermittent abnormality of the system occurs, so that a judgment basis is provided for monitoring the visible light video intermittent abnormality.
The core of the video monitoring board is a processing unit consisting of an analog-to-digital conversion chip, a CameraLink receiving chip, an FPGA and a VGA interface chip, and the processing unit is mainly used for comparing and judging the acquired voltage of the visible light camera to be monitored and a normal working voltage threshold value, and converting the original camera link video of the visible light camera to be monitored into VGA format for output.
The video monitoring board is provided with 4 electrical interfaces, and one of the electrical interfaces obtains 5V voltage through a voltage stabilizing power supply to supply power to the video monitoring board; the system comprises a processing unit, an analog-to-digital conversion chip in the processing unit, an FPGA (field programmable gate array) for threshold comparison processing, and an LED (light-emitting diode) lamp, wherein the processing unit is connected with a visible light camera to be monitored, monitors power supply of the visible light camera, proportionally reduces power supply voltage of the camera to be within an acquisition range of the processing unit through a voltage division module, and then transmits the power supply voltage to the processing unit; one is connected with a visible light camera to be monitored, a visible light video source is input, and the visible light video is subjected to serial-parallel conversion, time sequence reconstruction and digital-analog conversion into a VGA video in sequence by a CameraLink receiving chip, an FPGA and a VGA interface chip in a processing unit; the fourth electrical interface outputs the converted VGA-type video to the VGA display for display. The electrical definition diagram of the video monitoring board is shown in figure 1.
When the visible light video of the gun sight system appears good and bad, firstly, the power supply, communication and video plug of the visible light camera connected to the video board are disconnected; and then, building a visible light camera video monitoring link according to the connection relation shown in fig. 2. One end of a power supply cable is connected with a power supply port of the visible light camera, the other two ends of the power supply cable are respectively connected with a video monitoring board and a corresponding socket of the video board, one end of the video cable is connected with a video interface of the visible light camera, and the other two ends of the video cable are respectively connected with the corresponding sockets of the video monitoring board and the video board; the stabilized voltage supply provides 5V to supply power for the video monitoring board, and the video delivery outlet on the video monitoring board is connected with the VGA display and is responsible for monitoring the original output video of the visible light camera, and in addition, the voltage of the visible light camera is collected in real time through the voltage division and the processing unit on the video monitoring board and is displayed through the LED lamp, so that whether the voltage of the visible light is normal is monitored.
The power supply cable is Y-shaped, one end of the power supply cable is connected with the power supply input of the visible light camera, and the other two ends of the power supply cable are respectively connected with the video board and the video monitoring board.
The video cable is Y-shaped, one end of the video cable is connected with the video output of the visible light camera, and the other two ends of the video cable are respectively connected with the video board and the video monitoring board.
The VGA displayer is provided with a power supply cable and is responsible for displaying VGA videos of original output videos of the visible light camera of the gun sight system after being processed by the video monitoring board.
After the test environment is built, the gun sight system is powered on, the video monitoring board is powered on, and when the OLED screen displays that the visible video is abnormal, the lighting state of the video board, the lighting state of the video monitoring board, the display state of the VGA displayer and the like are observed simultaneously to complete the intermittent abnormal fault point positioning of the visible video.
(III) advantageous effects
According to the monitoring device and the monitoring method for the intermittent fault of the quick positioning visible light video, the reason that the intermittent abnormality of the visible light video occurs in the use process of the quick positioning gun sight system is simple and feasible in monitoring means, the troubleshooting result is visual and clear, the troubleshooting operability of the miniaturized and high-integration gun sight system is effectively improved, the troubleshooting difficulty of the system is reduced, and the maintainability of the gun sight system is ensured.
Drawings
FIG. 1 is an electrical definition diagram of a video monitoring board according to the present invention;
FIG. 2 is a video monitoring link diagram of a visible light camera according to the present invention;
FIG. 3 is an electrical relationship diagram of a video path of a visible camera of the present invention;
FIG. 4 is a diagram of the electrical relationship of the power cable of the present invention;
FIG. 5 is a diagram of the electrical relationship of the video cable of the present invention.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
The visible light video path of a certain gun sight system is as follows: the electrical relationship between the video plate of the gun sight and the visible camera is connected through two connectors, one is a 9-core connector and comprises 12V voltage obtained by visible light from the video plate and 422 communication between the two; the other is an 18-core connector, which provides the video output of the camera of the visible light camera to the video board; the video board sends the visible light video to OLED screen terminal after compression coding processing and shows, and the power module of gun sight mirror system provides 12V voltage for the video board, and the LED lamp on the video board keeps the normal bright state when the power supply is normal. The electrical relationship of the video path of the visible light camera is shown in fig. 3.
Therefore, the abnormal visible light output video comprises abnormal visible light single body power supply, abnormal single body self-processing, abnormal video processing board power supply, abnormal analysis video and the like, so that the video monitoring board mainly collects the voltage provided by the gun sight system for the visible light when the visible light video is abnormal and the video source state output by the visible light.
Therefore, in order to locate the cause of intermittent faults of the visible light video of the gun sight system, on one hand, the original electrical connection relation of the system is kept so as to facilitate the fault recurrence, and on the basis, an online monitoring measure is added.
When the visible light video of the gun sight system appears good and bad, the power supply, the communication plug K1 and the video plug K2 of the visible light camera connected to the video board are disconnected; then, a power supply cable G1 is connected to a visible light power supply port P1, and the other two ends, namely the ends G2 and G3 are respectively connected to CJ1 and SJ2 of the video monitoring board; similarly, the video cable S1 is connected to the visible light video port K2, and the other two ends, namely the ends S2 and S3 are respectively connected to the CJ3 and the SJ4 of the video monitoring board; the output 5V of the voltage-stabilized power supply is connected to CJ2 of the video monitoring board, CJ4 on the video monitoring board is connected with a VGA display and is responsible for monitoring original output video of the visible light camera, in addition, after the voltage of the collected visible light is divided by the voltage dividing module in proportion, the processing unit judges whether the voltage at the moment is in a normal power supply range of the visible light camera, if the voltage is in the normal power supply range, the LED lamp is displayed as green, and if the voltage exceeds the normal range, the voltage is displayed as red, so that whether the voltage of the visible light is normal is monitored. After the test environment is built, the gun sight system is powered on, the video monitoring board is powered on, and visible light videos are observed at an upper computer end of the gun sight system. When the visual video display on the OLED screen is abnormal, the lighting state of the video panel, the lighting state of the video monitoring panel and the output of the video opening CJ4 are observed simultaneously so as to complete the fault point positioning of the intermittent visual video abnormality. Wherein the electrical relationship of the power supply cable and the video cable is as shown in fig. 4 and 5.
Through the above online monitoring measures, the conclusions of table 1 can be drawn.
TABLE 1 Fault locator Table
When an upper computer of the gun sight system displays that the visible light video is intermittently abnormal, if the LED lamp on the video board is very bright, the power supply of the video board is positioned to be abnormal, and the power supply path of the video board is heavily checked; if the LED lamp on the video board is normally on and the LED lamp on the video monitoring board is red, indicating that the power supply of the visible light is abnormal, and checking a power supply chip on the video board; if the LED lamp on the video panel is normally on, the LED lamp of the video monitoring panel is green, and the output of the video port CJ4 of the video monitoring panel is abnormal, the abnormality of the visible light processing panel of the visible light camera is indicated; if the LED lamp on the video board is normally on, the LED lamp of the video monitoring board is green, the output of the video port CJ4 is normal, the video board is abnormal in self processing, and the video board is mainly checked from the two aspects of software and hardware.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a quick location visible light video intermittent type nature fault monitoring device which characterized in that includes: the video monitoring board comprises a processing unit, and the processing unit comprises an analog-to-digital conversion chip, a CameraLink receiving chip, an FPGA, an LED lamp and a VGA interface chip; the analog-digital conversion chip is connected with the FPGA, the FPGA is connected with the LED lamp, a power supply voltage signal of the visible light camera to be monitored is transmitted to the analog-digital conversion chip for analog-digital conversion, the converted signal is transmitted to the FPGA for threshold value comparison processing, and the comparison result shows whether the power supply of the visible light camera is normal or not through the lighting state of the LED lamp; the CameraLink receiving chip receives the visible light video, the FPGA performs serial-parallel conversion and time sequence reconstruction, the VGA interface chip converts the visible light video into the VGA video through digital-analog conversion, and the VGA video is output in a VGA form.
2. The device of claim 1, wherein the video monitoring board further comprises a voltage divider module connected to the visible light camera to be monitored, monitoring and receiving the power supply voltage of the visible light camera, scaling down the power supply voltage to a range within which the processing unit can acquire the power supply voltage, and transmitting the scaled power supply voltage to the processing unit.
3. The fast-positioning visible light video intermittent fault monitoring device of claim 2, wherein the video monitoring board is provided with 4 electrical interfaces, one of which obtains 5V voltage through a voltage-stabilized power supply to supply power to the video monitoring board; one is connected with the visible light camera to be monitored and the voltage division module; one is connected with the visible light camera to be monitored and inputs a visible light video source; the fourth electrical interface outputs the converted video in VGA form.
4. The fast-positioning visible light video intermittent fault monitoring device of claim 3, further comprising: and the VGA display is connected with the fourth electrical interface and displays the VGA video.
5. The device for rapidly positioning visible light video intermittent fault monitoring as claimed in claim 1, wherein the video monitoring board is connected with the visible light camera to be monitored through a power supply cable, and monitors and receives power supply voltage of the visible light camera.
6. The device as claimed in claim 5, wherein the power cable is Y-shaped, one end of the power cable is connected to the power input of the visible light camera, and the other two ends of the power cable are respectively connected to the video board and the video monitoring board.
7. The device for rapidly positioning visible light video intermittent fault monitoring as claimed in claim 1, wherein the video monitoring board is connected with the visible light camera to be monitored through a video cable, and a visible light video source is input to the video monitoring board.
8. The device of claim 7, wherein the video cable is Y-shaped, one end of the video cable is connected to the video output of the visible light camera, and the other two ends of the video cable are respectively connected to the video board and the video monitoring board.
9. The device for rapidly positioning visible light video intermittent fault monitoring as claimed in claim 4, wherein the VGA display is provided with a power supply cable and is responsible for displaying VGA video of original output video of the visible light camera processed by the video monitoring board.
10. A quick positioning visible light video intermittent fault monitoring method is characterized in that when the visible light video of a gun sight system is good and bad, firstly, a visible light camera is disconnected from a power supply, a communication plug and a video plug of a video board; then, connecting a power supply port of the visible light camera, the video monitoring board and the video board by using a power supply cable, and connecting a video port of the visible light camera, the video monitoring board and the video board by using a video cable; the output voltage of the voltage-stabilized power supply is connected to the video monitoring board, the video monitoring board is connected with the VGA display and is responsible for monitoring the original output video of the visible light camera, in addition, after the voltage of the collected visible light is divided by the voltage dividing module in proportion, the processing unit judges whether the voltage is in the normal power supply range of the visible light camera, if so, the LED lamp is displayed in green, and if the voltage exceeds the normal range, the LED lamp is displayed in red, so that whether the voltage of the visible light is normal is monitored;
when an upper computer of the gun sight system displays that a visible light video is intermittently abnormal, if an LED lamp on a video board is very bright, the power supply of the video board is positioned to be abnormal, and a power supply path of the video board is checked; if the LED lamp on the video board is normally on and the LED lamp on the video monitoring board is red, indicating that the power supply of the visible light is abnormal, and checking a power supply chip on the video board; if the LED lamp on the video panel is normally on, the LED lamp of the video monitoring panel is green, and the video port output of the video monitoring panel is abnormal, the abnormality of the visible light processing panel of the visible light camera is indicated; if the LED lamp on the video panel is normally on, the LED lamp of the video monitoring panel is green, and the output of the video port is normal, the video panel is abnormal in self processing, and the video panel is checked from the software and the hardware.
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| CN202210231657.3A CN114666572A (en) | 2022-03-10 | 2022-03-10 | Monitoring device and monitoring method for rapidly positioning intermittent faults of visible light video |
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| CN202210231657.3A CN114666572A (en) | 2022-03-10 | 2022-03-10 | Monitoring device and monitoring method for rapidly positioning intermittent faults of visible light video |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103517064A (en) * | 2013-08-30 | 2014-01-15 | 支录奎 | Real-time on-line self-diagnosis method and system for video monitoring equipment failure |
| US20140211020A1 (en) * | 2013-01-25 | 2014-07-31 | William Henry Johns, JR. | Video Capture Attachment and Monitor for Optical Viewing Instrument |
| CN107703428A (en) * | 2017-12-06 | 2018-02-16 | 国网辽宁省电力有限公司丹东供电公司 | Insulator breakdown detection means |
| US20180224244A1 (en) * | 2017-02-06 | 2018-08-09 | Sheltered Wings, Inc. D/B/A Vortex Optics | Viewing Optic with an Integrated Display System |
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- 2022-03-10 CN CN202210231657.3A patent/CN114666572A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140211020A1 (en) * | 2013-01-25 | 2014-07-31 | William Henry Johns, JR. | Video Capture Attachment and Monitor for Optical Viewing Instrument |
| CN103517064A (en) * | 2013-08-30 | 2014-01-15 | 支录奎 | Real-time on-line self-diagnosis method and system for video monitoring equipment failure |
| US20180224244A1 (en) * | 2017-02-06 | 2018-08-09 | Sheltered Wings, Inc. D/B/A Vortex Optics | Viewing Optic with an Integrated Display System |
| CN107703428A (en) * | 2017-12-06 | 2018-02-16 | 国网辽宁省电力有限公司丹东供电公司 | Insulator breakdown detection means |
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