CN103419513B - A kind of processing method of random image and a kind of printing equipment control system - Google Patents

Abstract

The present application discloses a random image processing method and a printing equipment control system, the method is applied in the printing equipment control system, and the method is used to obtain an image on any page of at least one page to be printed Data, the method includes: receiving the rasterized motherboard image data sent by the host, and the set length and set width of the image that needs to be randomly extracted, and the parameters used to represent the random number generation method; based on the parameters The random number generation method included in the random number coordinates and the image data storage address related to the random number coordinates are obtained; according to the set width and the set length, the image data storage address is used as the starting address Reading image data; sending the read image data to an imaging component for imaging by the imaging component.

Description

A random image processing method and a printing equipment control system

technical field

The present application relates to the field of digital printing, in particular to a random image processing method and a printing equipment control system.

Background technique

Digital printing is a printing technology that has developed rapidly in recent years. It is a way to directly transmit, process and print data. For digital printing equipment using on-demand inkjet printing, the imaging component is under the control of the control system. When the surface of the substrate (such as paper) reaches a predetermined position, the piezoelectric crystal in the nozzle generates a pulse to squeeze out the ink, and Spray mist ink droplets directly to the surface of the substrate (such as paper) for imaging. Compared with traditional printing methods, digital printing saves the process of plate making and proofing, the steps are simple and fast, and it supports variable data printing.

In addition, since the data needs to be directly transmitted from the computer to the imaging part for imaging, the control system of the digital printing equipment must process the data given by the computer into data suitable for imaging, and at the same time ensure the high real-time performance of the system.

In view of the characteristics of inkjet digital printing technology, such as non-contact, fast, real-time variable printing images, and environmental protection, its application range is becoming wider and wider. In some cases, printing manufacturers have some special requirements for digital printing technology. The requirements of printing manufacturers are no longer just to be able to process correct images and print images. They also hope that the new inkjet printing technology can give full play to its flexibility. To meet some special requirements, such as: random changes in printed images.

In the process of implementing the technical solution of the present application, the applicant of the present application found that the random change of the printed image in the prior art has the following technical problems:

1. The traditional printing method is limited to its fixed printing plate when printing images, and cannot realize random changes in images;

Second, although some flexible printers can meet the needs. However, due to the limited data processing capacity, it cannot handle large-scale data. Therefore, there is a problem that the work efficiency is low and it is not suitable for industrial production.

Contents of the invention

In view of this, the present application provides a random image processing method to solve the problem that the traditional printing method in the prior art cannot print random images in real time in industry.

On the one hand, through an embodiment of the present application, the following technical solutions are provided:

A random image processing method, applied in a printing equipment control system, the method is used to obtain image data on any page of at least one page to be printed, the method includes:

Receive the rasterized master image data sent by the host, and the set number of rows and set width of the image that needs to be randomly extracted from the master data, and the random position parameter used to represent the random position;

Obtaining random position parameter coordinates and image data storage addresses related to the random position parameter coordinates based on the random position parameters included in the parameters;

According to the set width and the set number of rows, use the image data storage address as a starting address to start reading image data;

Sending the read image data to an imaging component for imaging by the imaging component.

Optionally, the random position parameter is generated under the control of a printing control system.

Optionally, according to the set width and the set number of rows, the image data storage address is used as the starting address to start reading the image data, which specifically includes:

Step 1, using the storage address of the i-th row of image data as the start address for reading the i-th row of data, and reading the i-th row of image data whose width is the set width, wherein i is an integer greater than or equal to 1;

Step 2, judging whether the read image data up to the i-th row is smaller than the set number of rows;

Step 3, when less than, obtain the coordinates of the i+1th row and the image data storage address of the i+1th row corresponding to the coordinates of the i+1th row;

Step 4, starting to read the i+1th row of image data from the storage address of the i+1th row of image data;

Repeat the above step 2 to step 4 until the read image data is equal to the set number of lines.

Optionally, before the storage address of the image data corresponding to the obtained random position parameter coordinates and the random position parameter coordinates, the method further includes:

Receive rasterized master image data sent from the host;

randomly extracting image data for printing from said master image data;

Splitting the image data for printing into a plurality of master image blocks whose number is consistent with the plurality of imaging components.

Optionally, the obtaining the random position parameter coordinates and the image data storage address related to the random position parameter coordinates specifically includes:

Judging whether the random position parameter coordinate plus the set width is greater than the width of the master image;

When it is not greater than the width of the master image, the image data storage address corresponding to the random position parameter coordinates is used as the start address of image reading.

On the other hand, another embodiment of the present application also provides the following technical solutions:

A printing device control system for obtaining image data on any one of at least one page to be printed, the control system comprising:

control unit;

A memory, used to store the rasterized master image data sent by the receiving host;

The parameter register is used to store the set number of lines and the set width of the image that needs to be randomly extracted, and the random position parameter used to represent the random position;

A starting address calculation unit, connected to the control unit, used to obtain random position parameter coordinates and images related to the random position parameter coordinates based on the random position parameters included in the parameters under the control of the control unit Data storage address;

The address manager is connected to the memory and the control unit respectively, and is used to use the image data storage address as the starting point according to the set width and the set number of rows under the control of the control unit address to start reading image data from the memory;

A data processing unit, configured to send the read image data to an imaging component for imaging by the imaging component.

Optionally, the random position parameter is generated under the control of a printing control system.

Optionally, the address manager is also specifically used for:

Executing step 1, using the image data storage address of the i-th row as the starting address for reading the i-th row of data, and reading the i-th row of image data whose width is the set width, wherein i is an integer greater than or equal to 1;

Executing step 2, judging whether the read image data up to the i-th row is smaller than the set number of rows;

Execute step 3, when less than, use the random position parameter to obtain the random position parameter coordinates of the i+1th row and the image data storage address of the i+1th row corresponding to the random position parameter coordinates of the i+1th row;

Execute step 4, start reading the image data of the i+1th row from the storage address of the i+1th row of image data;

Repeat the above step 2 to step 4 until the read image data is equal to the set number of lines.

Optionally, before the acquisition of the random position parameter coordinates and the image data storage address corresponding to the random position parameter coordinates, the data processing unit is further configured to:

Receive rasterized master image data sent from the host;

randomly extracting image data for printing from said master image data;

Splitting the image data for printing into a plurality of master image blocks whose number is consistent with the plurality of imaging components.

Optionally, the initial address calculation unit is also used for:

Judging whether the random position parameter coordinate plus the set width is greater than the width of the master image;

When it is not greater than the width of the master image, the image data storage address corresponding to the random position parameter coordinates is used as the start address of image reading.

One or more technical solutions in the above technical solutions have the following technical effects or advantages:

1. It can easily realize the printing task of obtaining random images from the same master in digital printing. The application field and flexibility of digital inkjet printing equipment have been expanded again.

2. When the storage space is large enough, the printing equipment control system stores multiple masters, and the user can easily switch the masters, which can satisfy the user to realize flexible printing tasks.

3. In the printing equipment control system provided by this application, all are realized by general-purpose hardware, which not only reduces the waste of storage space, but also reduces the redundant steps when searching for the storage address, and improves the printing efficiency.

4. By assigning the splitting and processing of image data to the control system, the workload of the host computer is effectively reduced and the printing speed is increased.

5. By directly abandoning the reading address when it is judged that the width of the coordinates plus the random image is greater than the master image, the problem that the data may not be read when reading the image data is effectively avoided.

Description of drawings

FIG. 1 is a schematic diagram of an imaging component installation method in an embodiment of the present application;

Fig. 2 is the flow chart of the processing method of random image in the embodiment of the present application;

Fig. 3 is the operation flowchart of printing equipment in the embodiment of the present application;

Fig. 4 is a system block diagram of the printing equipment control system in the embodiment of the present application;

FIG. 5 is a structural block diagram of a parameter register in an embodiment of the present application.

Detailed ways

In this application, the main control computer (referred to as the host) transmits the rasterized master image data to the printing equipment control system, for example: the high-speed inkjet printing equipment control system. The host computer passes the size (width*length) of the image to be randomly extracted, the number of pages, and the generation method of random position parameters to the high-speed inkjet printing equipment control system as parameters; when printing starts, the high-speed inkjet printing equipment control system first according to The set random position parameter generation method generates random position parameter coordinates x, y, and calculates the image data storage location corresponding to the random position parameter coordinates as the address for data reading. The control system starts from the address obtained by calculation, reads the data of a set width image, and further processes it according to the arrangement of the imaging components or directly sends it to the imaging component for imaging; when the read data is less than the set number of lines , continue to read the next line of data until the data of the set image size is obtained; when the number of image pages acquired is less than the set number of pages, continue to generate the next random position parameter coordinates, and recalculate the starting address of the random image, The sending of the image data of the next page is repeated until the printing task of the entire random image is completed.

The main realization principles, specific implementation methods and corresponding beneficial effects that can be achieved of the technical solutions of the embodiments of the present application will be described in detail below in conjunction with each accompanying drawing.

Please refer to Figure 1, which is a schematic diagram of an installation method of the imaging component in the embodiment of the present application;

Due to the limitation of the single imaging width of the imaging component and DPI (Dot Per Inch, that is, the printing accuracy, which refers to the dots that the printer can print per inch), the current high-speed digital inkjet printing equipment on the market mostly adopts the way of character splicing to expand Print width or DPI.

Please refer to FIG. 2, which is a flowchart of a method for processing random images in the embodiment of the present application;

Step 200, receiving the rasterized master image data sent by the host, and the set number of rows and set width of the image to be randomly extracted, and parameters used to represent random position parameters;

In a specific implementation process, the method is applied in a printing equipment control system, especially for a high-speed inkjet printing equipment control system, and the method is used to obtain image data on any page of at least one page to be printed, The generation method of the random position parameter is determined by a host connected to the printing device control system. In order to completely image an image, image data must be split, processed, and sent to imaging components at different time points for imaging.

Specifically, in the printing equipment used in this application, the host computer and the high-speed inkjet printing equipment control system work together to complete flexible and variable data processing. First, the host computer rasterizes the image data that needs to be printed, and then transmits the obtained dot matrix data to the back-end control system or splits it and then transmits it to the back-end system.

The specific setting of the random position parameter corresponds to the user's need for random printing. Here is a specific example as an illustration:

The user's master data size is 20*30 (that is, 20 rows and 30 columns), but the user only wants to print an image of 10*10 (that is, 10 rows and 10 columns), based on the user's needs, determine a block size of 10*10 The starting position of the image as the coordinates of the random position parameter.

In addition, in the process of acquiring random images, if the master image is stored in the hard disk or memory of the host, the host needs to continuously read the hard disk or memory to obtain data and transmit it to the back-end control system. We know that high-speed digital inkjet printing equipment has high work efficiency, and the transmission speed of the front-end data must be greater than the data speed consumed by the back-end in order to ensure the continuity of the printed image or the continuity of the printing process. When the host continuously reads the hard disk, it may cause the entire machine to run inefficiently and cannot meet the requirements of data transmission. If the memory of the host is used to store data, excessive occupation of the memory of the host will reduce the efficiency of rasterization. When switching the master image, the data flow will be broken, resulting in the interruption of the printing work.

For this reason, this application adopts a large storage space in the digital printing control system, and the host computer transmits the rasterized master image to the high-speed inkjet printing equipment control system, and the control system performs random image processing. This method can not only free the host from heavy labor, complete image rasterization, monitor printing status, and improve system stability; it can also reduce the pressure of bus transmission and reduce the probability of error in image data transmission. Because the printing control system uses hardware to process random images, it can not only improve efficiency and perform real-time processing; it can also link the control system with mechanical devices to reduce the risk of interruption of the printing process.

Step 210, based on the random position parameter included in the parameter, obtain the random position parameter coordinate and the image data storage address related to the random position parameter coordinate;

In a specific implementation process, since the specific value of the random position parameter is determined, the random position parameter is generated under the control of the printing control system.

Further, when obtaining the random position parameter coordinates and the image data storage addresses related to the random position parameter coordinates, the following scheme is adopted:

Judging whether the random position parameter coordinate plus the set width is greater than the width of the master image;

When it is not greater than the width of the master image, the image data storage address corresponding to the random position parameter coordinates is used as the start address of image reading.

Step 220, according to the set width and the set number of lines, use the image data storage address as the starting address to start reading image data;

Specifically, this step can be carried out as follows:

Step 1, using the storage address of the i-th row of image data as the start address for reading the i-th row of data, and reading the i-th row of image data whose width is the set width, wherein i is an integer greater than or equal to 1;

Step 2, judging whether the read image data up to the i-th row is smaller than the set number of rows;

Step 3, when less than, obtain the coordinates of the i+1th row and the image data storage address of the i+1th row corresponding to the coordinates of the i+1th row;

Step 4, starting to read the i+1th row of image data from the storage address of the i+1th row of image data;

Repeat steps 2, 3 and 4 above until the read image data is equal to the set number of lines.

Through this step, the processing of one page of the image data rasterized by the host is completed.

Step 230, sending the read image data to the imaging component for imaging by the imaging component;

Specifically, receive rasterized master image data sent from the host;

randomly extracting image data for printing from said master image data;

Splitting the image data for printing into a plurality of master image blocks whose number is consistent with the plurality of imaging components.

In addition, the aforementioned steps only complete the processing of random images in one page. If other or multiple pages of random images need to be processed, the cumulative counting is performed in units of pages to determine the needs of random image printing tasks based on the current master. Whether the number of printed image pages has been completed, if not, continue to generate the next random position parameter coordinates, recalculate the starting position of the new page, and repeat the above steps until the current printing task is completed.

Please refer to FIG. 3 below, which is a flowchart of the operation of the printing equipment in the embodiment of the present application;

Step 310, setting random parameters;

In the embodiment of the present application, the main control computer first sets the random position parameters of the image to be processed, for example, an image of 5*5 is cut out from an image whose master image size is 20*20, and from here The coordinates of the random position parameter can be known, which is the starting position corresponding to the 5*5 image.

Step 320, transmitting master image data;

Since in a specific implementation process, the content of the master image data to be printed may be one or more pages, in a specific implementation, one page of content in the multi-page content is transmitted to the printing device;

Step 330, calculate the position of data reading according to the parameters;

That is, among the image data transmitted from the host, the image data content that needs to be printed randomly;

Step 340, sending to the imaging component for imaging;

Step 350, judging whether the current page has been sent;

If the current page has been sent, then proceed to step 360, otherwise return to step 330 and continue the reading of other random images in the current data content;

Step 360, whether the user setting task has been completed;

If the desired printing task set by the user is completed, exit, otherwise, return to step 330 to continue printing the data content of the next page.

Please refer to FIG. 4 below, which is a structural diagram of the printing equipment control system in the embodiment of the present application;

The system is used to obtain image data on any one of at least one page to be printed, the system comprising:

control unit 10;

The memory 20 is used to store the rasterized master image data sent by the receiving host;

The parameter register 30 is used to store the set number of lines and the set width of the image that needs to be randomly extracted, and parameters used to represent random position parameters;

The starting address calculation unit 40 is connected to the control unit, and is used to obtain the random position parameter coordinates and the random position parameter coordinates related to the random position parameter coordinates under the control of the control unit based on the random position parameters included in the parameters. Image data storage address; specifically, the random position parameter is generated under the control of the printing control system.

The address manager 50 is connected to the memory and the control unit respectively, and is used to use the image data storage address as the starting point according to the set width and the set number of rows under the control of the control unit. start address to start reading image data from the memory;

In addition, the address manager is also specifically used for:

Executing step 1, using the image data storage address of the i-th row as the starting address for reading the i-th row of data, and reading the i-th row of image data whose width is the set width, wherein i is an integer greater than or equal to 1;

Executing step 2, judging whether the read image data up to the i-th row is smaller than the set number of rows;

Execute step 3, when less than, obtain the coordinates of the i+1th row and the image data storage address of the i+1th row corresponding to the coordinates of the i+1th row;

Execute step 4, start reading the image data of the i+1th row from the storage address of the i+1th row of image data;

Repeat steps 2 to 4 above until the read image data is equal to the set number of lines.

The data processing unit 60 is configured to send the read image data to the imaging component 70 for imaging by the imaging component 70 . In addition, when there are multiple imaging components, before the base obtains the random position parameter coordinates and the image data storage address corresponding to the random position parameter coordinates, the data processing unit 60 further includes:

A receiving module, configured to receive rasterized master image data sent from the host;

an extraction module, configured to randomly extract image data for printing from the master image data;

A splitting module, configured to split the image data for printing into a plurality of master image blocks whose number is consistent with that of the plurality of imaging components.

Please refer to FIG. 5, which is a structural block diagram of the parameter register in the embodiment of the present application;

As shown in Figure 5, the parameters in the parameter register mainly include two parts. The first part is set by the user from the upper operation interface, such as random image width, length, and number of printed pages; the other part is during data transmission. , which is calculated or recorded by the control system itself, such as the width and length of the master image, the start address and end address of the storage space.

By using parameter registers, the flexibility and adaptability of the device are improved.

Through one or more embodiments of the present application, the following technical effects can be achieved:

One or more technical solutions in the above technical solutions have the following technical effects or advantages:

1. It can easily realize the printing task of obtaining random images from the same master in digital printing. The application field and flexibility of digital inkjet printing equipment have been expanded again.

2. When the storage space is large enough, the printing equipment control system stores multiple masters, and the user can easily switch the masters, which can satisfy the user to realize flexible printing tasks.

3. In the printing equipment control system provided by this application, all are realized by general-purpose hardware, which not only reduces the waste of storage space, but also reduces the redundant steps when searching for the storage address, and improves the printing efficiency.

4. By assigning the splitting and processing of image data to the control system, the workload of the host computer is effectively reduced and the printing speed is increased.

5. By directly abandoning the reading address when it is judged that the width of the coordinates plus the random image is greater than the master image, the problem that the data may not be read when reading the image data is effectively avoided.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (10)

1. a processing method for random image, is applied in printing equipment control system, and described method is for obtaining the view data on the arbitrary page at least one page needing printing, and it is characterized in that, described method comprises:

The mother matrix view data of the rasterizing that Receiving Host sends, and need the setting line number of random extraction image from Master data and setting width and the random site parameter being used for representing random site;

Based on the random site parameter that described parameter comprises, the view data memory address that acquisition random site parameter coordinate and described random site parameter coordinate are correlated with;

By described setting width and described setting line number, described view data memory address is started reads image data as initial address;

The view data of described reading is sent to image-forming block, for described image-forming block imaging.

2. the method for claim 1, is characterized in that, described random site parameter is controlled to generate by printing control system.

3. method as claimed in claim 2, is characterized in that, described by described setting width and described setting line number, described view data memory address is started reads image data as initial address, specifically comprises:

Step one, using the i-th row view data memory address as the initial address of the i-th row digital independent, reading width is the i-th row view data of described setting width, wherein i be more than or equal to 1 integer;

Step 2, judges whether the reads image data of ending described i-th row is less than described setting line number;

Step 3, when being less than, obtains the coordinate of the i-th+1 row and the i-th+1 row view data memory address corresponding to described i-th+1 row-coordinate;

Step 4, reads the i-th+1 row view data from described i-th+1 row view data memory address;

Repeat above-mentioned steps two to step 4, until reads image data equals described setting line number.

4. method as claimed in claim 3, is characterized in that, when there being multiple image-forming block, described based on before obtaining random site parameter coordinate and view data memory address corresponding to described random site parameter coordinate, described method also comprises:

Receive the mother matrix view data of the rasterizing sent from main frame;

The view data for printing is extracted at random from described mother matrix view data;

The described view data being used for printing is split as the many parts of mother matrix image blocks that quantity is consistent with described multiple image-forming block.

5. as claim 1, the method described in 2,3 or 4, is characterized in that, the view data memory address that described acquisition random site parameter coordinate and described random site parameter coordinate are correlated with, and specifically comprises:

Judge that described random site parameter coordinate adds whether described setting width is greater than the width of described mother matrix image;

When being not more than the width of described mother matrix image, using the initial address of view data memory address corresponding for described random site parameter coordinate as image reading.

6. a printing equipment control system, for obtaining the view data on the arbitrary page at least one page needing printing, it is characterized in that, described control system comprises:

Control unit;

Memory, the mother matrix view data for the rasterizing sent by Receiving Host stores;

Parameter register, for storing the setting line number and setting width that need random extraction image and the random site parameter being used for representing random site;

Initial address computing unit, be connected with described control unit, for under the control of described control unit, based on the random site parameter that described parameter comprises, the view data memory address that acquisition random site parameter coordinate and described random site parameter coordinate are correlated with;

Address manager, be connected with described memory and described control unit respectively, under controlling at described control unit, by described setting width and described setting line number, using described view data memory address reads image data as initial address is from described memory;

Data processing unit, for the view data of described reading is sent to image-forming block, for described image-forming block imaging.

7. system as claimed in claim 6, is characterized in that, described random site parameter is controlled to generate by printing control system.

8. system as claimed in claim 7, is characterized in that, described address manager, specifically also for:

Perform step one, using the i-th row view data memory address as the initial address of the i-th row digital independent, reading width is the i-th row view data of described setting width, wherein i be more than or equal to 1 integer;

Perform step 2, judge whether the reads image data of ending described i-th row is less than described setting line number;

Perform step 3, when being less than, with the random site parameter coordinate of described random site gain of parameter i-th+1 row and the i-th+1 row view data memory address corresponding to described i-th+1 row random site parameter coordinate;

Perform step 4, from described i-th+1 row view data memory address, read the i-th+1 row view data;

Repeat above-mentioned steps two to step 4, until reads image data equals described setting line number.

9. system as claimed in claim 8, is characterized in that, when there being multiple image-forming block, before described acquisition random site parameter coordinate and view data memory address corresponding to described random site parameter coordinate, described data processing unit also comprises:

Receiver module, for receiving the mother matrix view data of the rasterizing sent from main frame;

Extraction module, for extracting the view data for printing at random from described mother matrix view data;

Split module, for the described view data being used for printing being split as the quantity many part mother matrix image blocks consistent with described multiple image-forming block.

10. as claim 6, the system described in 7,8 or 9, is characterized in that, described initial address computing unit, also for:

Judge that described random site parameter coordinate adds whether described setting width is greater than the width of described mother matrix image;

When being not more than the width of described mother matrix image, using the initial address of view data memory address corresponding for described random site parameter coordinate as image reading.