CN210469472U - Scanning control system - Google Patents
Scanning control system Download PDFInfo
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- CN210469472U CN210469472U CN201922185165.1U CN201922185165U CN210469472U CN 210469472 U CN210469472 U CN 210469472U CN 201922185165 U CN201922185165 U CN 201922185165U CN 210469472 U CN210469472 U CN 210469472U
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Abstract
A scan control system, the system comprising: the device comprises a paper feeding mechanism, a contact type image sensor, an analog front end, an FPGA, a processor and a power supply. According to the scanning control system and the scanning method based on the scanning control system, the scanning process is realized by adopting the domestic parts, so that monopoly on the scanning technology in China is broken, and the scanning control system and the scanning method based on the scanning control system have good practical significance and scientific significance.
Description
Technical Field
The utility model belongs to the technical field of the scanning, concretely relates to scanning control system.
Background
Many input/output devices are currently used in offices, and a large part of the input/output devices is used for scanning documents, copying materials and faxing documents, among these devices, the scanning function is one of the main functions or functions of the devices, and the scanning control system is an indispensable part of the devices having the scanning function. Scanning control systems exist in common scanners, copiers, integrated fax machines and other devices, and convert paper documents, data, bills and the like into scanned image data.
In the scanning equipment in the market at present, a microprocessor in a scanning control system adopts a special chip, and the special microprocessor chip is not yet made into a home, so that the realization of an autonomous controllable guiding principle for the scanning equipment is seriously limited.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the present application provides a scan control system, including:
the paper feeding mechanism is used for receiving the paper to be scanned and controlling the paper to move along a preset scanning path;
the contact image sensor is used for scanning the paper to be scanned;
the analog front end is used for controlling the scanning time sequence of the contact image sensor, receiving an analog image signal obtained by scanning the contact image sensor and converting the analog image signal into digital image data; the simulation front end is connected with the contact type image sensor;
the FPGA is used for controlling the paper feed mechanism, the contact type image sensor and the analog front end to work according to a preset instruction; the FPGA is respectively connected with the paper feed mechanism, the contact type image sensor and the analog front end;
and the processor is used for controlling the FPGA to start a scanning process, acquiring scanning data returned by the FPGA and processing the scanning data to generate scanning image data. The processor is connected with the FPGA;
the power supply is used for supplying power to each part; the power supply is respectively connected with the paper feeding mechanism, the contact type image sensor, the analog front end, the FPGA and the processor.
Preferably, the paper feeding mechanism comprises a paper feeding mechanism, and the paper feeding mechanism is used for guiding the paper to be scanned into a preset scanning path.
Preferably, the paper feeding mechanism is arranged at the front end of the preset scanning path.
Preferably, the paper feeding mechanism further comprises a motor and a transmission mechanism, and the motor is connected with the transmission mechanism to control the motor to approach or depart from the paper feeding mechanism and move along a preset scanning path.
Preferably, the contact image sensor comprises a light source and a photosensitive assembly, and the light source and the photosensitive assembly are respectively connected with the FPGA.
Preferably, the analog front end comprises an AD converter and a timing controller, and the AD converter and the timing controller are respectively connected with the FPGA.
Preferably, a USART serial port is arranged on the processor, and the processor is connected with the FPGA through the USART serial port.
Preferably, a USB serial port is arranged on the processor, and the processor is connected with the FPGA through the USB serial port.
Preferably, an IO port is arranged on the FPGA, and the FPGA is connected to the contact image sensor and the analog front end through the IO port.
According to the scanning control system and the scanning method based on the scanning control system, the scanning process is realized by adopting the domestic parts, so that monopoly on the scanning technology in China is broken, and the scanning control system and the scanning method based on the scanning control system have good practical significance and scientific significance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a scan control system provided by the present invention;
fig. 2 is a schematic structural diagram of a scan control system provided by the present invention;
fig. 3 is a schematic flow chart of a scanning method based on a scanning control system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 and 2, in an embodiment of the present application, the present application provides a scan control system, including: the sheet feed mechanism 1, the contact image sensor 2, the analog front end 3, the FPGA4, the processor 5, and the power supply 6, and the details of each part will be described below.
Referring to fig. 1 and 2, in an embodiment of the present application, the present application provides a scan control system, including:
the paper feeding mechanism 1 is used for receiving paper to be scanned and controlling the paper to move along a preset scanning path;
a contact image sensor 2 for scanning a sheet to be scanned;
the analog front end 3 is used for controlling the scanning time sequence of the contact image sensor 2, receiving an analog image signal obtained by scanning the contact image sensor 2 and converting the analog image signal into digital image data; the analog front end 3 is connected with the contact type image sensor 2;
the FPGA4 is used for controlling the paper feeding mechanism 1, the contact type image sensor 2 and the analog front end 3 to work according to a preset instruction; the FPGA4 is connected to the paper feeding mechanism 1, the contact image sensor 2, and the analog front end 3 respectively;
and the processor 5 (such as a domestic CPU) is used for controlling the FPGA4 to start a scanning process, acquiring scanning data returned by the FPGA4 and processing the scanning data to generate scanning image data. The processor 5 is connected with the FPGA 4;
a power supply 6 for supplying power to each component; the power supply 6 is connected to the sheet feeding mechanism 1, the contact image sensor 2, the analog front end 3, the FPGA4, and the processor 5, respectively.
When the scanning control system works, the paper feeding mechanism 1 is responsible for scanning a complete manuscript by the way that the manuscript to be scanned passes over the contact type image sensor 2 and passes from head to tail. When the manuscript passes through the contact type image sensor 2, the contact type image sensor 2 can emit light to illuminate the paper, acquire optical information on the paper and convert an optical signal into an electric signal; the analog front end 3 receives an analog image signal of the contact image sensor 2, converts the analog signal into a digital signal and obtains digital image data; the processor 5 processes the acquired scan data to convert to a desired image format.
As shown in fig. 2, in the embodiment of the present application, the sheet feeding mechanism 1 includes a sheet feeding mechanism 7, and the sheet feeding mechanism 7 is configured to guide a sheet to be scanned into a preset scanning path. The paper feeding mechanism 7 is arranged at the front end of the preset scanning path. In the embodiment of the present application, the paper feeding mechanism 7 may be a sheet-shaped sheet, and may be used to support and guide the movement of the paper.
As shown in fig. 2, in the embodiment of the present application, the sheet feeding mechanism 1 further includes a motor 8 and a transmission mechanism 9, and the motor 8 is connected to the transmission mechanism 9 to control it to approach or move away from the sheet feeding mechanism 7 and move along a predetermined scanning path. In the embodiment of the present application, the transmission mechanism 9 may be a conveyor belt, and is controlled by the motor 8 to rotate and drive the paper to move.
As shown in fig. 2, in the embodiment of the present application, the contact image sensor 2 includes a light source 10 and a photosensitive component 11, and the light source 10 and the photosensitive component 11 are respectively connected to the FPGA 4. The light source 10 may be an LED lamp for illuminating the paper, and the photosensitive component 11 (such as a photosensitive chip) may sense the illumination of the LED lamp to obtain image information.
As shown in fig. 2, in the embodiment of the present application, the analog front end 3 includes an AD converter 12 and a timing controller 13, and the AD converter 12 and the timing controller 13 are respectively connected to the FPGA 4.
As shown in fig. 2, in the embodiment of the present application, a USART serial port 14 is provided on the processor 5, and the processor 5 is connected to the FPGA4 through the USART serial port 14.
As shown in fig. 2, in the embodiment of the present application, a USB serial port 15 is disposed on the processor 5, and the processor 5 is connected to the FPGA4 through the USB serial port 15.
As shown in fig. 2, in the embodiment of the present application, an IO port 16 is disposed on the FPGA4, and the FPGA4 is connected to the contact image sensor 2 and the analog front end 3 through the IO port 16.
As shown in fig. 3, in the embodiment of the present application, the present application provides a scanning method based on a scanning control system, where the scanning control system is any one of the scanning control systems described above, and the method includes the steps of:
s1: placing paper to be scanned on the paper feeding mechanism 1;
s2: setting scanning parameters on the processor 5 and starting scanning;
s3: the FPGA4 receiving the scan parameters from the processor 5;
s4: according to the scanning parameters, the FPGA4 configures the working parameters of the contact image sensor 2, the analog front end 3 and the paper feeding mechanism 1;
s5: the touch image sensor, the analog front end 3 and the paper feed mechanism 1 work according to respective working parameters;
s6: the FPGA4 obtains scan data from the analog front end 3 and sends it to the processor 5;
s7: the processor 5 processes the received scanning data to obtain color bitmap data;
s8: the processor 5 judges whether a next sheet of paper to be scanned exists;
s9: if yes, the operation is circulated; if not, the scanning task is ended.
With reference to fig. 3, the steps of scanning the scanning method will be described in detail by taking scanning a single page copy as an example:
in step S1, the user places the scan document on the sheet feed mechanism 1.
In step S2, setting scan parameters on the processor 5 and starting scanning; specifically, the processor 5 sends scanned parameters, including resolution, black and white or color, paper type, etc., to the FPGA 4.
In step S3, the FPGA4 receives the scan parameters from the processor 5 and parses the various parameters.
In step S4, the FPGA4 configures a clock frequency to be output according to the scanned parameters, and configures different output frequencies for the analog front end 3, the contact image sensor 2, and the motor 8 in the sheet feeding mechanism 1, so that the clock frequencies of the analog front end 3, the contact image sensor 2, and the motor 8 conform to the scanned resolution parameters; and initializes the analog front end 3 to scan the relevant registers in preparation for initiating a scan.
In step S5, the touch image sensor, the analog front end 3, and the sheet feeding mechanism 1 operate simultaneously, and a scanning process is performed.
In step S6, the FPGA4 obtains the scan data output by the analog front end 3, and the scan data output by the analog front end 3 is cycled according to monochrome one-line output (i.e., one line R, one line G, and one line B). And after receiving a line of data, the FPGA4 stores the received data of a line of single color into a buffer, and transmits the last stored data to the processor 5 when receiving the next line of data.
In step S7, the processor 5 receives the scan data sent by the FPGA4, the data received by the processor 5 is also received in line by line in a single color, the processor 5 converts the received scan data into color bitmap data, converts the original RGB data arranged in line into RGB data arranged in dots, generates bitmap data, and executes step S8 after receiving data for one page.
In step S8, after receiving the receipt, the processor 5 queries the FPGA4 whether there is a next page to be scanned, and if there is a next page, executes the above operation in step S9; if no next page indicates the end of scanning, the state returns to the standby state.
According to the scanning control system and the scanning method based on the scanning control system, the scanning process is realized by adopting the domestic parts, so that monopoly on the scanning technology in China is broken, and the scanning control system and the scanning method based on the scanning control system have good practical significance and scientific significance.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. A scan control system, comprising:
the paper feeding mechanism is used for receiving the paper to be scanned and controlling the paper to move along a preset scanning path;
the contact image sensor is used for scanning the paper to be scanned;
the analog front end is used for controlling the scanning time sequence of the contact image sensor, receiving an analog image signal obtained by scanning the contact image sensor and converting the analog image signal into digital image data; the simulation front end is connected with the contact type image sensor;
the FPGA is used for controlling the paper feed mechanism, the contact type image sensor and the analog front end to work according to a preset instruction; the FPGA is respectively connected with the paper feed mechanism, the contact type image sensor and the analog front end;
the processor is used for controlling the FPGA to start a scanning process, acquiring scanning data returned by the FPGA and processing the scanning data to generate scanning image data, and the processor is connected with the FPGA;
the power supply is used for supplying power to each part; the power supply is respectively connected with the paper feeding mechanism, the contact type image sensor, the analog front end, the FPGA and the processor.
2. The scanning control system of claim 1, wherein the paper feeding mechanism comprises a paper feeding mechanism for guiding the paper to be scanned into a preset scanning path.
3. The scan control system of claim 2, wherein the paper feeding mechanism is disposed at a front end of a preset scan path.
4. The scanning control system of claim 2, wherein the sheet feeding mechanism further comprises a motor and a transmission mechanism, the motor is connected to the transmission mechanism to control the motor to move close to or away from the sheet feeding mechanism and along a predetermined scanning path.
5. The scan control system of claim 1, wherein the contact image sensor comprises a light source and a photosensitive assembly, the light source and the photosensitive assembly being respectively connected to the FPGA.
6. The scan control system of claim 1, wherein the analog front end comprises an AD converter and a timing controller, and the AD converter and the timing controller are respectively connected to the FPGA.
7. The scanning control system of claim 1, wherein a USART serial port is provided on the processor, and the processor is connected to the FPGA through the USART serial port.
8. The scanning control system of claim 1, wherein the processor is provided with a USB serial port, and the processor is connected with the FPGA through the USB serial port.
9. The scanning control system of claim 1, wherein the FPGA is provided with an IO port, and the FPGA is connected to the contact image sensor and the analog front end through the IO port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922185165.1U CN210469472U (en) | 2019-12-09 | 2019-12-09 | Scanning control system |
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| CN201922185165.1U CN210469472U (en) | 2019-12-09 | 2019-12-09 | Scanning control system |
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| CN210469472U true CN210469472U (en) | 2020-05-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110798588A (en) * | 2019-12-09 | 2020-02-14 | 天津光电通信技术有限公司 | Scanning control system and scanning method based on same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110798588A (en) * | 2019-12-09 | 2020-02-14 | 天津光电通信技术有限公司 | Scanning control system and scanning method based on same |
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