CN110636178B - State detection method based on cloud server - Google Patents
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- H—ELECTRICITY
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- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
- H04N1/00026—Methods therefor
- H04N1/00037—Detecting, i.e. determining the occurrence of a predetermined state
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- H04N1/00204—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
- H04N1/00244—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server with a server, e.g. an internet server
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- H04N1/00281—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal
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Abstract
The invention relates to a cloud server-based state detection method which comprises the steps of using a cloud server-based state detection platform to perform ink mark analysis on printed topmost paper, and triggering a corresponding ink adding reminding action when the ink mark depth is shallow.
Description
Technical Field
The invention relates to the field of cloud servers, in particular to a state detection method based on a cloud server.
Background
The cloud server (ECS) is a computing Service with simplicity, high efficiency, safety, reliability, and flexible processing capability. The management mode is simpler and more efficient than that of a physical server. A user can rapidly create or release any plurality of cloud servers without purchasing hardware in advance.
The industry name of cloud servers is actually computing units. The computing unit means that the server can only count the brains of one person, and is equivalent to the CPU of a common computer, and the resources in the server are limited. And if you need to obtain better performance, the solution is to upgrade the cloud server and to deploy other software which consumes the resources of the computing unit on the corresponding cloud service. For example, databases have special cloud database services, static web pages and pictures have special file storage services.
Disclosure of Invention
The present invention has at least the following important points:
(1) executing ink mark analysis on the printed topmost paper, and triggering corresponding ink adding reminding actions when the ink mark depth is shallow so as to improve the intelligent level of the printing equipment;
(2) on the basis of morphological processing, reliable data volume judgment is carried out on an input image in a trial compression mode, and effective data volume of the input image is obtained so as to facilitate subsequent image processing operation;
(3) based on the data size of the image to be processed, a smoothing mechanism with different operation complexity is selected to ensure that the operation amount of the whole image processing system is relatively stable, so that the quality of the processed image is improved.
According to an aspect of the present invention, there is provided a cloud server-based status detection method, the method including using a cloud server-based status detection platform to perform ink analysis on a top printed paper to trigger a corresponding ink adding reminding action when an ink depth is shallow, the cloud server-based status detection platform including:
the cloud server is respectively connected with the gamma correction device and the font analysis device through wireless network communication links and is used for carrying out paper object analysis on the gamma correction image based on paper imaging characteristics so as to obtain paper sub-images occupied by the paper objects in the gamma correction image;
a font analyzing device for performing font object analysis on the paper sub-image based on the font imaging characteristics to obtain font areas respectively occupied by the font objects in the paper sub-image;
the ink mark detection device is connected with the font analysis device and executes the following processing to each font area: obtaining each brightness value of each pixel point of the font area, and carrying out arithmetic mean calculation on each brightness value to obtain a corresponding reference brightness value;
the network video equipment is arranged above the paper outlet of the printer and used for carrying out video recording action on the scene at the paper outlet so as to obtain and output a current video frame;
the morphological processing equipment is connected with the network video recording equipment and is used for receiving the current video frame and performing expansion processing and then corrosion processing on the current video frame to obtain a morphological processing image;
the compression coding device is connected with the morphological processing device and used for receiving the morphological processing image and executing H264 compression coding processing on the morphological processing image to obtain compression coded image data;
the signal extraction device is connected with the compression coding device and is used for analyzing the data volume of the image data after compression coding so as to obtain the corresponding effective data volume of the morphological processing image;
in the signal extraction device, analyzing the data amount of the compression-encoded image data to obtain a corresponding effective data amount of the morphologically processed image includes: the smaller the data amount of the image data after compression coding is, the smaller the effective data amount of the corresponding morphological processing image is obtained;
the device comprises a complex programmable logic device, a built-in random memory unit and a control unit, wherein the complex programmable logic device is used for storing a first programmable logic control language paragraph and a second programmable logic control language paragraph, the first programmable logic control language paragraph is used for realizing image smoothing processing based on non-scaling transformation blurring, and the second programmable logic control language paragraph is used for realizing image smoothing processing based on median blurring;
the gamma correction equipment is connected with the complex programmable logic device and is used for executing gamma correction processing on the received dynamic smooth image so as to obtain and output a corresponding gamma correction image;
the ink detection device is further configured to perform an arithmetic mean calculation on respective reference luminance values respectively corresponding to the respective font areas to obtain a representative luminance value, and determine an ink depth inversely proportional to the representative luminance value.
The state detection method based on the cloud server is compact in structure and reliable in data. Because the ink mark analysis is executed to the topmost printed paper, when the ink mark depth is shallow, the corresponding ink adding reminding action is triggered, and the intelligent level of the printing equipment is improved.
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Embodiments of the invention will now be described with reference to the accompanying drawings, in which:
fig. 1 is a schematic external view of a printer to which a cloud server-based status detection platform is applied according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The printing device (Printer) is one of the output devices of the computer for printing the results of the computer processing on the relevant medium. The indexes for measuring the quality of the printing equipment comprise three items: print resolution, print speed and noise. There are many types of printing apparatuses, and there are a plurality of types of impact printing apparatuses, which are classified into impact printing apparatuses and non-impact printing apparatuses, depending on whether or not a printing element strikes paper. A full-font character printing apparatus and a dot matrix character printing apparatus are divided into print character structures. A line printer is divided into a serial printer and a line printer in such a manner that a line character is formed on a sheet. According to the adopted technology, the printing equipment is divided into a column type, a spherical type, an ink-jet type, a thermal sensitive type, a laser type, an electrostatic type, a magnetic type, a light-emitting diode type and the like.
With the rapid development of the internet, it is predicted that the paperless era will come and the printing apparatus will come at the end of the day. However, global paper consumption is growing at a doubling rate each year, and the sales of printing apparatuses are increasing at a rate approaching 8% on average. All of them indicate that the printing apparatus will not disappear, and will develop faster and faster, and the application field is wider and wider.
At present, printing apparatus lacks the ink mark detection mechanism of pertinence, whether need to change the selenium drum and rely on the darkness of the typeface that printing personnel manual observation printed completely, if change the selenium drum too early, then cause the waste to the printing consumptive material, if change the selenium drum too late, then the printed matter quality of printing out is too poor and can't use.
In order to overcome the defects, the invention builds a state detection method based on the cloud server, and the method comprises the steps of using a state detection platform based on the cloud server to execute ink mark analysis on the printed topmost paper, and triggering a corresponding ink adding reminding action when the ink mark depth is shallow. The state detection platform based on the cloud server can effectively solve the corresponding technical problem.
Fig. 1 is a schematic external view of a printer to which a cloud server-based status detection platform is applied according to an embodiment of the present invention.
The cloud server-based state detection platform shown according to the embodiment of the invention comprises:
the cloud server is respectively connected with the gamma correction device and the font analysis device through wireless network communication links and is used for carrying out paper object analysis on the gamma correction image based on paper imaging characteristics so as to obtain paper sub-images occupied by the paper objects in the gamma correction image;
a font analyzing device for performing font object analysis on the paper sub-image based on the font imaging characteristics to obtain font areas respectively occupied by the font objects in the paper sub-image;
the ink mark detection device is connected with the font analysis device and executes the following processing to each font area: obtaining each brightness value of each pixel point of the font area, and carrying out arithmetic mean calculation on each brightness value to obtain a corresponding reference brightness value;
the network video equipment is arranged above the paper outlet of the printer and used for carrying out video recording action on the scene at the paper outlet so as to obtain and output a current video frame;
the morphological processing equipment is connected with the network video recording equipment and is used for receiving the current video frame and performing expansion processing and then corrosion processing on the current video frame to obtain a morphological processing image;
the compression coding device is connected with the morphological processing device and used for receiving the morphological processing image and executing H264 compression coding processing on the morphological processing image to obtain compression coded image data;
the signal extraction device is connected with the compression coding device and is used for analyzing the data volume of the image data after compression coding so as to obtain the corresponding effective data volume of the morphological processing image;
in the signal extraction device, analyzing the data amount of the compression-encoded image data to obtain a corresponding effective data amount of the morphologically processed image includes: the smaller the data amount of the image data after compression coding is, the smaller the effective data amount of the corresponding morphological processing image is obtained;
the device comprises a complex programmable logic device, a built-in random memory unit and a control unit, wherein the complex programmable logic device is used for storing a first programmable logic control language paragraph and a second programmable logic control language paragraph, the first programmable logic control language paragraph is used for realizing image smoothing processing based on non-scaling transformation blurring, and the second programmable logic control language paragraph is used for realizing image smoothing processing based on median blurring;
the gamma correction equipment is connected with the complex programmable logic device and is used for executing gamma correction processing on the received dynamic smooth image so as to obtain and output a corresponding gamma correction image;
the ink detection device is further used for carrying out arithmetic mean calculation on each reference brightness value respectively corresponding to each font area to obtain a representative brightness value and determining the ink depth inversely proportional to the representative brightness value;
the liquid crystal display device is embedded in the shell of the printer, is connected with the ink mark detection device and is used for receiving and displaying the ink mark depth;
and the ink adding reminding equipment is connected with the ink detecting equipment and is used for sending out an ink adding-free signal when the depth of the received ink exceeds the limit, or sending out an ink adding request signal.
Next, a detailed structure of the cloud server-based status detection platform according to the present invention will be further described.
In the cloud server-based state detection platform:
and respectively carrying out power supply operation on the compression coding equipment and the signal extraction equipment by adopting the same power supply input equipment.
In the cloud server-based state detection platform:
the complex programmable logic device is respectively connected with the signal extraction equipment and the morphology processing equipment and is used for operating a first programmable logic control language paragraph to execute image smoothing processing on a received morphology processing image when the received effective data volume exceeds the limit, acquiring a corresponding dynamic smooth image and stopping operating a second programmable logic control language paragraph.
In the cloud server-based state detection platform:
and the complex programmable logic device is also used for operating the second programmable logic control language paragraph to execute image smoothing processing on the received morphological processing image to obtain a corresponding dynamic smooth image and stopping operating the first programmable logic control language paragraph when the received effective data volume is not over the limit.
The cloud server-based state detection platform may further include:
and the FPM DRAM storage device is respectively connected with the font analysis device and the ink detection device and is used for respectively storing the current output data of the font analysis device and the ink detection device.
The cloud server-based state detection platform may further include:
and the frequency division duplex communication interface is connected with the font analysis equipment and is used for transmitting the current transmission data of the font analysis equipment through a frequency division duplex communication link.
In the cloud server-based state detection platform:
the font analyzing device and the ink detecting device are respectively realized by SOC chips with different models, and the font analyzing device and the ink detecting device are integrated on the same printed circuit board.
The cloud server-based state detection platform may further include:
and the temperature sensing equipment is respectively connected with the font analyzing equipment and the ink mark detecting equipment and is used for respectively detecting the shell temperatures of the font analyzing equipment and the ink mark detecting equipment.
In addition, frequency division duplex means that uplink and downlink transmissions are performed on different frequencies. In the first and second generation cellular systems, FDD technology is basically used for duplex transmission. In particular, in the first generation cellular systems, since continuous baseband signals are transmitted, duplex uplink and downlink channels must be provided using different frequencies. In the first generation cellular systems, in which FDD is used for continuous information transmission, frequency synthesizers for generating different carrier frequencies are required at both the transmitting and receiving ends, and a duplex filter for preventing the transmission signal from leaking to the receiver is required at the receiving end. In addition, in order to facilitate the fabrication of the duplexer, a certain frequency interval is required between the transmission and reception carrier frequencies. In the second generation of systems such as GSM, IS-136 and IS-95, FDD technology IS also used. In these systems, since the information is transmitted in time slots, the transmission and reception can be performed in different time slots, and the transmission signal of the mobile station or the base station does not interfere with the receiver. So, despite the FDD technique employed, no expensive duplex filters are required.
The FDD mode is characterized by receiving and transmitting in two symmetric frequency channels separated (190 MHz between uplink and downlink frequencies), and separating the receiving and transmitting channels by guard bands.
By adopting the technologies of packet switching and the like, the bottleneck of the second generation development can be broken through, the high-speed data service can be realized, the frequency spectrum utilization rate can be improved, and the system capacity can be increased. FDD must provide third generation services using paired frequencies, i.e., within a bandwidth of every 2x5 MHz. The mode can fully utilize the uplink and downlink frequency spectrums when supporting the symmetric service, but the frequency spectrum utilization rate is greatly reduced (about 40 percent of the frequency spectrum utilization rate is reduced due to low uplink load) when the asymmetric packet switching (Internet) works, and in this regard, the TDD mode has incomparable advantages compared with the FDD mode.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: Read-Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A cloud server-based state detection method, the method comprising using a cloud server-based state detection platform to perform ink analysis on a printed uppermost sheet to trigger a corresponding ink-filling reminding action when ink depth is shallow, the cloud server-based state detection platform comprising:
the cloud server is respectively connected with the gamma correction device and the font analysis device through wireless network communication links and is used for carrying out paper object analysis on the gamma correction image based on paper imaging characteristics so as to obtain paper sub-images occupied by the paper objects in the gamma correction image;
a font analyzing device for performing font object analysis on the paper sub-image based on the font imaging characteristics to obtain font areas respectively occupied by the font objects in the paper sub-image;
the ink mark detection device is connected with the font analysis device and executes the following processing to each font area: obtaining each brightness value of each pixel point of the font area, and carrying out arithmetic mean calculation on each brightness value to obtain a corresponding reference brightness value;
the network video equipment is arranged above the paper outlet of the printer and used for carrying out video recording action on the scene at the paper outlet so as to obtain and output a current video frame;
the morphological processing equipment is connected with the network video recording equipment and is used for receiving the current video frame and performing expansion processing and then corrosion processing on the current video frame to obtain a morphological processing image;
the compression coding device is connected with the morphological processing device and used for receiving the morphological processing image and executing H264 compression coding processing on the morphological processing image to obtain compression coded image data;
the signal extraction device is connected with the compression coding device and is used for analyzing the data volume of the image data after compression coding so as to obtain the corresponding effective data volume of the morphological processing image;
in the signal extraction device, analyzing the data amount of the compression-encoded image data to obtain a corresponding effective data amount of the morphologically processed image includes: the smaller the data amount of the image data after compression coding is, the smaller the effective data amount of the corresponding morphological processing image is obtained;
the device comprises a complex programmable logic device, a built-in random memory unit and a control unit, wherein the complex programmable logic device is used for storing a first programmable logic control language paragraph and a second programmable logic control language paragraph, the first programmable logic control language paragraph is used for realizing image smoothing processing based on non-scaling transformation blurring, and the second programmable logic control language paragraph is used for realizing image smoothing processing based on median blurring;
the gamma correction equipment is connected with the complex programmable logic device and is used for executing gamma correction processing on the received dynamic smooth image so as to obtain and output a corresponding gamma correction image;
the ink detection device is further used for carrying out arithmetic mean calculation on each reference brightness value respectively corresponding to each font area to obtain a representative brightness value and determining the ink depth inversely proportional to the representative brightness value;
the liquid crystal display device is embedded in the shell of the printer, is connected with the ink mark detection device and is used for receiving and displaying the ink mark depth;
and the ink adding reminding equipment is connected with the ink detecting equipment and is used for sending out an ink adding-free signal when the depth of the received ink exceeds the limit, or sending out an ink adding request signal.
2. The method of claim 1, wherein:
and respectively carrying out power supply operation on the compression coding equipment and the signal extraction equipment by adopting the same power supply input equipment.
3. The method of claim 2, wherein:
the complex programmable logic device is respectively connected with the signal extraction equipment and the morphology processing equipment and is used for operating a first programmable logic control language paragraph to execute image smoothing processing on a received morphology processing image when the received effective data volume exceeds the limit, acquiring a corresponding dynamic smooth image and stopping operating a second programmable logic control language paragraph.
4. The method of claim 3, wherein:
and the complex programmable logic device is also used for operating the second programmable logic control language paragraph to execute image smoothing processing on the received morphological processing image to obtain a corresponding dynamic smooth image and stopping operating the first programmable logic control language paragraph when the received effective data volume is not over the limit.
5. The method of claim 4, wherein the platform further comprises:
and the FPM DRAM storage device is respectively connected with the font analysis device and the ink detection device and is used for respectively storing the current output data of the font analysis device and the ink detection device.
6. The method of claim 5, wherein the platform further comprises:
and the frequency division duplex communication interface is connected with the font analysis equipment and is used for transmitting the current transmission data of the font analysis equipment through a frequency division duplex communication link.
7. The method of claim 6, wherein:
the font analyzing device and the ink detecting device are respectively realized by SOC chips with different models, and the font analyzing device and the ink detecting device are integrated on the same printed circuit board.
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| CN104417064A (en) * | 2013-09-03 | 2015-03-18 | 北大方正集团有限公司 | Method and device for detecting jet nozzles of ink-jet printer |
| CN109249712A (en) * | 2018-11-23 | 2019-01-22 | 成都易联云网络科技有限公司 | A kind of printer and its printer system and printer control method |
| CN109353130A (en) * | 2018-11-30 | 2019-02-19 | 广东金赋科技股份有限公司 | A kind of printer paper quantity monitoring method applied to self-service terminal |
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| US10250768B2 (en) * | 2016-08-29 | 2019-04-02 | Xerox Corporation | Print media size/color detection using scanner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104417064A (en) * | 2013-09-03 | 2015-03-18 | 北大方正集团有限公司 | Method and device for detecting jet nozzles of ink-jet printer |
| CN109249712A (en) * | 2018-11-23 | 2019-01-22 | 成都易联云网络科技有限公司 | A kind of printer and its printer system and printer control method |
| CN109353130A (en) * | 2018-11-30 | 2019-02-19 | 广东金赋科技股份有限公司 | A kind of printer paper quantity monitoring method applied to self-service terminal |
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