CN111147829A - Image acquisition redundancy method and system of optical fiber data transmission camera - Google Patents
Image acquisition redundancy method and system of optical fiber data transmission camera Download PDFInfo
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- CN111147829A CN111147829A CN201911344550.4A CN201911344550A CN111147829A CN 111147829 A CN111147829 A CN 111147829A CN 201911344550 A CN201911344550 A CN 201911344550A CN 111147829 A CN111147829 A CN 111147829A
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- optical fiber
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
Abstract
The application relates to an image acquisition redundancy method and system of an optical fiber data transmission camera. The system camera is connected with the single fiber ports of the at least two 1 XN optical splitters through optical fibers, and the split port of each optical splitter is in communication connection with the image acquisition cards installed in the at least two industrial personal computers through the optical fibers, so that the system can be automatically switched to the industrial personal computer or the optical splitter which normally operates under the condition that the current industrial personal computer, the image acquisition card, the optical fiber adapter or the optical splitter have faults, and the reliability of the system is improved. According to the method, when the working time of the current industrial personal computer reaches a preset working period, the current industrial personal computer is automatically placed at the tail of the industrial personal computer queue, and meanwhile, one industrial personal computer is selected from the head of the industrial personal computer queue to be set to be in a working state, so that the phenomenon that one industrial personal computer is stuck or even crashed after continuously working for a long time is avoided, and the high availability of the system is improved.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a method and system for image acquisition redundancy of a camera using an optical fiber as a data transmission medium.
Background
The optical fiber is used as a medium for digital signal transmission, has the advantages of long transmission distance, high transmission speed, strong anti-interference performance and the like, and is widely used for large-target-surface CCD cameras. A PCIe image acquisition card and an optical fiber adapter are arranged on an image acquisition computer of the CCD camera and connected with a CCD controller through optical fibers, so that the CCD can be controlled to expose and acquire images. However, this point-to-point connection is a single point in the whole system, and once any of the computer, the image capture card or the fiber adapter fails to work properly, the CCD will lose control completely. Especially, unattended astronomical observation equipment running in the south Pole cannot timely and effectively correct and replace hidden danger devices, and meanwhile, the astronomical observation equipment continuously works for a long time in the midnight period, and an industrial personal computer is easy to cause the phenomenon of blocking or even downtime, so that the image acquisition redundancy method and the system of the existing CCD optical fiber communication transmission camera cannot meet the requirement of high-availability redundancy design.
Disclosure of Invention
In view of the foregoing, there is a need to provide an image acquisition redundancy method and system for a highly available fiber optic data transmission camera.
An image acquisition redundancy method of an optical fiber data transmission camera provides an image acquisition redundancy system of the optical fiber data transmission camera, the camera is connected with single fiber ports of at least two 1 XN optical fiber shunts through optical fibers, the shunt port of each optical fiber shunt is in communication connection with image acquisition cards installed in at least two industrial personal computers through the optical fibers, wherein N is a positive integer, and N is more than or equal to 2, the method comprises the following steps:
step 1: sorting the industrial computer queues in a reverse order according to the total working time of the industrial computers, and selecting one industrial computer from the head of the industrial computer queue to set the industrial computer in a working state;
step 2: the industrial personal computer sends a shooting instruction, the shooting instruction is transmitted to the camera through the optical fiber branching unit, and the camera receives the shooting instruction;
and step 3: the camera shoots images and transmits the shot images to the image acquisition card through the optical fiber branching unit, the image acquisition card acquires the shot images and transmits the acquired results to the industrial personal computer for writing and backup storage, the writing and backup are completed, and the total working time and the current working time of the industrial personal computer are updated;
and 4, step 4: if the working mode is a long-period operation mode, judging whether the current working time of the current industrial personal computer reaches the preset working time, if so, putting the current industrial personal computer into the tail of the industrial personal computer queue, simultaneously selecting one industrial personal computer from the head of the industrial personal computer queue to be set in a working state, and returning to the step 2; and if the working mode is a short-period running mode, judging whether the work is finished, if so, entering the step 5, otherwise, returning to the step 3.
And 5: and (6) exiting.
Preferably, in step 4, if the selected operating mode is a long-period operating mode, if the current operating time of the current industrial personal computer does not reach the preset operating time, returning to step 3.
Preferably, still include the fiber optic adapter in camera and the industrial computer respectively, fiber optic adapter's one end is passed through optic fibre and is connected with optical fiber branching unit, and the other end is connected with camera and image acquisition card respectively, if the industrial computer appears down or installs the image acquisition card or the fiber optic adapter on the industrial computer inefficacy in operating condition, rejects current industrial computer from the industrial computer queue to mark this industrial computer as non-operating condition, simultaneously, select an industrial computer from industrial computer queue head and set up to operating condition, return to step 2.
Preferably, if the optical fiber splitter fails, the program control automatically switches other optical fiber splitters to perform image transmission.
The camera is connected with single fiber ports of at least two 1 XN optical fiber shunts through optical fibers, and a shunt port of each optical fiber shunt is in communication connection with image acquisition cards installed in two industrial personal computers at least through the optical fibers, wherein N is a positive integer and is more than or equal to 2.
Preferably, still include the fiber optic adapter in camera and the industrial computer respectively, the one end of fiber optic adapter is passed through optic fibre and is connected with optic fibre branching unit, and the other end is connected with camera and image acquisition card respectively.
Preferably, the optical splitter is a one-to-two optical splitter.
The CCD camera of the image acquisition redundancy system of the optical fiber data transmission camera is connected with single fiber ports of at least two 1 XN optical fiber shunts through optical fibers, and the shunt port of each optical fiber shunt is in communication connection with at least two image acquisition cards installed in the industrial personal computer through the optical fibers, so that the program control can be automatically switched to the industrial personal computer, the image acquisition card, the optical fiber adapter or the optical fiber shunt which can normally operate under the condition that the current industrial personal computer, the image acquisition card, the optical fiber adapter or the optical fiber shunt have faults, and the reliability of the system is improved; meanwhile, according to the image acquisition redundancy method of the optical fiber data transmission camera, when the working time of the current industrial personal computer reaches the preset working period, the current industrial personal computer is automatically placed at the tail of the industrial personal computer queue, and meanwhile, one industrial personal computer is selected from the head of the industrial personal computer queue to be set to be in a working state, so that the phenomenon that one industrial personal computer is stuck or even crashed after continuously working for a long time is avoided, and the high availability of the system is improved.
Drawings
FIG. 1 is a schematic diagram illustrating a flowchart of an image acquisition redundancy method of an optical fiber data transmission camera in a long-period operation mode according to an embodiment;
FIG. 2 is a schematic diagram of a flowchart of an image acquisition redundancy method of an optical fiber data transmission camera in a short-cycle operation mode according to an embodiment;
fig. 3 is a block diagram of an image acquisition redundancy system of the fiber optic data transmission camera in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, in a long period operation mode, an image acquisition redundancy method for an optical fiber data transmission camera provides an image acquisition redundancy system for the optical fiber data transmission camera, the camera is connected to single fiber ports of at least two 1 × N optical fiber splitters through optical fibers, a split port of each optical fiber splitter is in communication connection with at least two image acquisition cards installed in industrial personal computers through optical fibers, where N is a positive integer and N is greater than or equal to 2, and the method includes the following steps:
step 101: sorting the industrial computer queues in a reverse order according to the total working time of the industrial computers, and selecting one industrial computer from the head of the industrial computer queue to set the industrial computer in a working state;
step 102: the industrial personal computer sends a shooting instruction, the shooting instruction is transmitted to the camera through the optical fiber branching unit, and the camera receives the shooting instruction;
step 103: the camera shoots images and transmits the shot images to the image acquisition card through the optical fiber branching unit, the image acquisition card acquires the shot images and transmits the acquired results to the industrial personal computer for writing and backup storage, the writing and backup are completed, and the total working time and the current working time of the industrial personal computer are updated;
step 104: judging whether the current working time of the current industrial personal computer reaches a preset working time, if not, returning to the step 103; if yes, go to step 105;
step 105: and (4) putting the current industrial personal computer into the tail part of the industrial personal computer queue, selecting one industrial personal computer from the head part of the industrial personal computer queue to be set to be in a working state, and returning to the step 102.
In one embodiment, as shown in fig. 2, in a short-cycle operation mode, an image acquisition redundancy method for an optical fiber data transmission camera provides an image acquisition redundancy system for the optical fiber data transmission camera, the camera is connected to single fiber ports of at least two 1 × N optical fiber splitters through optical fibers, a split port of each optical fiber splitter is in communication connection with at least two image acquisition cards installed in industrial personal computers through optical fibers, where N is a positive integer and is greater than or equal to 2, and the method includes the following steps:
step 201: sorting the industrial computer queues in a reverse order according to the total working time of the industrial computers, and selecting one industrial computer from the head of the industrial computer queue to set the industrial computer in a working state;
step 202: the industrial personal computer sends a shooting instruction, the shooting instruction is transmitted to the camera through the optical fiber branching unit, and the camera receives the shooting instruction;
step 203: the camera shoots images and transmits the shot images to the image acquisition card through the optical fiber branching unit, the image acquisition card acquires the shot images and transmits the acquired results to the industrial personal computer for writing and backup storage, the writing and backup are completed, and the total working time and the current working time of the industrial personal computer are updated;
step 204: judging whether the work is finished or not, if not, returning to the step 203; if yes, go to step 205;
step 205: and (6) exiting.
In the image acquisition redundancy method of the optical fiber data transmission camera, in a long-period operation mode, when the working time of the current industrial personal computer reaches the preset working time, the current industrial personal computer is automatically placed at the tail of the industrial personal computer queue and set to be in a dormant state, and meanwhile, one industrial personal computer is selected from the head of the industrial personal computer queue and set to be in a working state, so that the phenomenon that one industrial personal computer is stuck or even crashed after continuously working for a long time is avoided, and the stability of the system is improved.
In one embodiment, as shown in fig. 3, an image acquisition redundancy system of a fiber data transmission camera is provided, which includes a CCD camera using a STA 10k × 10k CCD camera, the CCD camera is connected to single fiber ports of two 1 × 2 fiber splitters through optical fibers, a splitting port of each fiber splitter is respectively connected to an image acquisition card installed in two industrial personal computers through optical fibers, and the industrial personal computers use an FPC7502 industrial personal computer.
Specifically, the industrial personal computer comprises a processor and a memory, the image acquisition card uses a Grablink image acquisition card of Eurosys company, and the image acquisition card acquires an image shot by the CCD camera and stores the acquired image in the memory.
Specifically, still include the fiber optic adapter respectively in camera and the industrial computer, the fiber optic adapter uses the RCX C-Link fiber optic adapter of EDT company, one section of fiber optic adapter is connected with optic fibre branching unit through optic fibre, and the other end is connected with camera and industrial computer respectively.
In the image acquisition redundancy system of the optical fiber data transmission camera, the CCD camera is connected with the single fiber ports of the two 1 x 2 optical fiber shunts through optical fibers, and the shunt port of each optical fiber shunt is in communication connection with the two industrial personal computers through the optical fibers, so that the system can be automatically switched to the industrial personal computers, the image acquisition cards, the optical fiber adapters or the optical fiber shunts which can normally operate under the condition that the current industrial personal computers, the image acquisition cards, the optical fiber adapters or the optical fiber shunts have faults, and the reliability of the system is improved.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. An image acquisition redundancy method of an optical fiber data transmission camera provides an image acquisition redundancy system of the optical fiber data transmission camera, the camera is connected with single fiber ports of at least two 1 xN optical fiber shunts through optical fibers, the shunt port of each optical fiber shunt is in communication connection with image acquisition cards installed in at least two industrial personal computers through the optical fibers, wherein N is a positive integer, and N is more than or equal to 2, the method is characterized by comprising the following steps:
step 1: sorting the industrial computer queues in a reverse order according to the total working time of the industrial computers, and selecting one industrial computer from the head of the industrial computer queue to set the industrial computer in a working state;
step 2: the industrial personal computer sends a shooting instruction, the shooting instruction is transmitted to the camera through the optical fiber branching unit, and the camera receives the shooting instruction;
and step 3: the camera shoots images and transmits the shot images to the image acquisition card through the optical fiber branching unit, the image acquisition card acquires the shot images and transmits the acquired results to the industrial personal computer for writing and backup storage, the writing and backup are completed, and the total working time and the current working time of the industrial personal computer are updated;
and 4, step 4: if the working mode is a long-period operation mode, judging whether the current working time of the current industrial personal computer reaches the preset working time, if so, putting the current industrial personal computer into the tail of the industrial personal computer queue, simultaneously selecting one industrial personal computer from the head of the industrial personal computer queue to be set in a working state, and returning to the step 2; if the working mode is a short-period running mode, judging whether the work is finished, if so, entering the step 5, otherwise, returning to the step 3;
and 5: and (6) exiting.
2. The image acquisition redundancy method of the optical fiber data transmission camera according to claim 1, wherein in the step 4, if the selected working mode is a periodic operation mode, if the current working time of the current industrial personal computer does not reach the preset working time, the step 3 is returned.
3. The method of claim 1, wherein the camera and the industrial personal computer respectively further comprise an optical fiber adapter, one end of the optical fiber adapter is connected with an optical fiber branching unit through an optical fiber, the other end of the optical fiber adapter is connected with the camera and the image acquisition card respectively, if the industrial personal computer is down in a working state or the image acquisition card or the optical fiber adapter installed on the industrial personal computer is failed, the current industrial personal computer is removed from an industrial personal computer queue and is marked as a non-working state, meanwhile, one industrial personal computer is selected from the head of the industrial personal computer queue and set as a working state, and the method returns to the step 2.
4. The image acquisition redundancy method of the optical fiber data transmission camera according to claim 1, wherein if the optical fiber splitter fails, program control automatically switches other optical fiber splitters for image transmission.
5. The image acquisition redundancy system of the optical fiber data transmission camera is characterized in that the camera is connected with single fiber ports of at least two 1 XN optical fiber shunts through optical fibers, and the shunt port of each optical fiber shunt is in communication connection with image acquisition cards installed in at least two industrial personal computers through the optical fibers, wherein N is a positive integer and is more than or equal to 2.
6. The image acquisition redundancy system of the optical fiber data transmission camera of claim 4, wherein the camera and the industrial personal computer respectively further comprise optical fiber adapters, one ends of the optical fiber adapters are connected with the optical fiber branching unit through optical fibers, and the other ends of the optical fiber adapters are connected with the camera and the image acquisition card respectively.
7. The image acquisition system of claim 1, wherein the fiber optic splitter is a two-into-two fiber optic splitter.
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| US20110199500A1 (en) * | 2010-02-18 | 2011-08-18 | Fujifilm Corporation | Image obtaining method and image capturing apparatus |
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