CN111580761A - Printing control method for Bluetooth thermal printer, Bluetooth thermal printer and computer readable storage medium - Google Patents
Printing control method for Bluetooth thermal printer, Bluetooth thermal printer and computer readable storage medium Download PDFInfo
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- CN111580761A CN111580761A CN202010404846.7A CN202010404846A CN111580761A CN 111580761 A CN111580761 A CN 111580761A CN 202010404846 A CN202010404846 A CN 202010404846A CN 111580761 A CN111580761 A CN 111580761A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1202—Dedicated interfaces to print systems specifically adapted to achieve a particular effect
- G06F3/1211—Improving printing performance
- G06F3/1215—Improving printing performance achieving increased printing speed, i.e. reducing the time between printing start and printing end
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
- G06F3/1237—Print job management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1278—Dedicated interfaces to print systems specifically adapted to adopt a particular infrastructure
- G06F3/128—Direct printing, e.g. sending document file, using memory stick, printing from a camera
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Abstract
The printing control method, the Bluetooth thermal printer and the computer readable storage medium provided by the invention comprise the steps of S1, receiving initial cache data, and recording the initial cache data Da received in the initial cache receiving time Ta; step S2, calculating an initial printing speed Va; step S3, printing the data to a paper sheet; step S4, judging whether the cycle buffer data volume Df received in a data transmission cycle T is zero, if not, calculating the process printing speed Vb; and step S5, judging whether the difference between the current printing speed and the process printing speed Vb is larger than 2mm/S, if so, changing the current printing speed to the process printing speed Vb, otherwise, keeping the current printing speed to continue printing and executing the steps S3 to S5. The process printing speed Vb is determined according to buffering the received data within one data transmission period, and thus, the printing speed can be adjusted according to the actual data transmission speed of bluetooth.
Description
Technical Field
The invention belongs to the technical field of imaging equipment, and particularly relates to a printing control method for a Bluetooth thermal printer, the Bluetooth thermal printer and a computer readable storage medium.
Background
At present, when a portable Bluetooth thermal printer prints, the printing speed often depends on data transmission of Bluetooth, the transmission rate difference between different Bluetooth modules of a mobile phone and the Bluetooth module of the printer is large, and particularly the difference between an android system and an IOS system is obvious. The speed of some android mobile phones can reach more than 60K/S, and the Bluetooth speed of iPhone 5 mobile phones can only reach about 5K/S. The printing speed of the Bluetooth thermal printer which selects a data transmission and printing mode in the market at present is a fixed gear, and the highest printing speed is completely limited by the lowest Bluetooth speed.
In order to be compatible with various mobile phones, the printing speed of the bluetooth thermal printer can only be determined according to the lowest bluetooth transmission rate. However, when data transmission is fast, if printing can still be performed only at a printing speed that satisfies the slow data transmission, the advantages of high-speed data transmission cannot be achieved.
Disclosure of Invention
A first object of the present invention is to provide a print control method for a bluetooth thermal printer that can adjust a print speed according to a bluetooth actual data transmission speed.
The second purpose of the invention is to provide a Bluetooth thermal printer for realizing the printing control method.
A third object of the present invention is to provide a computer-readable storage medium that implements the above-described print control method.
In order to achieve the first object, the printing control method provided by the present invention includes step S1, receiving initial buffer data, starting a timer to time an initial buffer receiving time Ta, and recording an initial buffer data amount Da received within the initial buffer receiving time Ta; step S2, calculating an initial printing speed Va according to the initial buffer data volume Da, the printing head dot byte number n and the printing head height h of the Bluetooth thermal printer, wherein the initial printing speed Va is (Da/n) × h; step S3, printing the data to a paper sheet; step S4, the timer counts the data transmission period T in a cycle, and determines whether the period buffer data amount Df received in one data transmission period T is zero, if not, calculates the process printing speed Vb, where Vb is (Df/n) × h; and step S5, judging whether the difference between the current printing speed and the process printing speed Vb is larger than 2mm/S, if so, changing the current printing speed to the process printing speed Vb, repeatedly executing the step S3 to the step S5, otherwise, keeping the current printing speed to continuously print, and executing the step S3 to the step S5.
According to the scheme, the process printing speed Vb is determined according to the received data cached in one data transmission period, the process printing speed Vb is compared with the current printing speed, and when the difference between the process printing speed Vb and the current printing speed is larger than 2mm/S, the current printing speed is changed into the process printing speed Vb; when the difference between the two is not more than 2mm/S, the printing is continued with the current printing speed maintained. Therefore, the printing speed can be adjusted according to the actual Bluetooth data transmission speed, and the situation that the printing speed cannot be improved because the printing speed of the thermal printer is a fixed speed under the condition that the actual Bluetooth data transmission speed is high is avoided.
Preferably, in step S4, if it is determined that the received cycle buffer data amount Df in one data transfer cycle T is zero, step S65 is executed to determine whether the current printing speed is not greater than 1mm/S, and if so, printing is exited. Caching
If the determination result in the step S65 is negative and the received total amount of buffered data D1 is equal to the total amount of print data D2 received by the bluetooth thermal printer, the data is printed on the paper at the current printing speed, and the printing is continued until the printing is finished. Cache memory
Further, if the determination result in the step S65 is no and the received total amount of buffered data D1 is less than the total amount of print data D2 received by the bluetooth thermal printer, it is determined whether the buffered data D3 is less than the number of print head nibbles n, and if so, printing is exited.
Further, if the cached data D3 is not less than the number n of print head nibbles, the printing speed is adjusted to be two thirds of the current printing speed, and printing is continued.
Further, the initial buffer receiving time Ta is 150ms to 2 s. In this embodiment, the initial buffer receiving time Ta is 1 s.
Further, the data transmission period T is 150ms to 2 s. In this embodiment, the data transmission period T is 1 s.
In order to achieve the second object, the present invention provides a bluetooth thermal printer, which comprises a printing head and a control system for controlling the printing head, wherein the control system comprises a memory, a general controller and a program stored in the memory, and the program is executed by the general controller to implement the steps of the printing control method.
According to the scheme, the process printing speed Vb is determined according to the received data cached in one data transmission period, the process printing speed Vb is compared with the current printing speed, and when the difference between the process printing speed Vb and the current printing speed is not less than 2mm/S, the current printing speed is changed into the process printing speed Vb; and when the difference between the two is less than 2mm/S, the printing is continued at the current printing speed. Therefore, the printing speed can be adjusted according to the actual Bluetooth data transmission speed, and the situation that the printing speed of the thermal printer cannot be improved due to the fact that the printing speed of the thermal printer is a fixed speed under the condition that the actual Bluetooth data transmission speed is high is avoided.
To achieve the third object described above, the present invention provides a computer-readable storage medium having a program stored thereon, the program, when executed by an overall controller, implementing the steps of the above-described print control method.
According to the scheme, the process printing speed Vb is determined according to the received data cached in one data transmission period, the process printing speed Vb is compared with the current printing speed, and when the difference between the process printing speed Vb and the current printing speed is not less than 2mm/S, the current printing speed is changed into the process printing speed Vb; and when the difference between the two is less than 2mm/S, the printing is continued at the current printing speed. Therefore, the printing speed can be adjusted according to the actual Bluetooth data transmission speed, and the situation that the printing speed cannot be improved due to the fact that the printing speed of the Bluetooth thermal printer is fixed under the condition that the actual Bluetooth data transmission speed is high is avoided.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
Fig. 1 is a flowchart of an embodiment of a printing control method 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 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 invention and are not intended to limit the invention.
The printing control method is applied to the Bluetooth thermal printer, preferably, the Bluetooth thermal printer is provided with a shell, a printing head and a control system for controlling the printing head to work are arranged in the shell, the control system is arranged on a circuit board and comprises a memory, a master controller and a program stored on the memory, and the steps of the printing control method are realized when the program is executed by the master controller. The master controller is a master control chip, the master control chip adopts an STM32 chip, the control system comprises a Bluetooth module, the Bluetooth module is connected to the master controller through a UART component, the UART component comprises a transmitting part, a receiving part, a baud rate generator and a control unit, wherein the transmitting part comprises a transmitting shift register and a FIFO buffer area with the size of 16-bit bytes, the receiving part comprises a receiving shift register and a FIFO buffer area with the size of 16-bit bytes, the transmitting shift register and the data of transmitting FIFO interruption are added, the receiving part completes receiving in the same way, and the FIFO buffer area is used for storing buffer data.
Printing control method embodiment:
referring to fig. 1, the print control method provided in this embodiment includes step S1, receiving initial buffer data, starting a timer to count an initial buffer receiving time Ta, and recording an initial buffer data amount Da received within the initial buffer receiving time Ta; step S2, calculating an initial printing speed Va according to the initial buffer data volume Da, the printing head dot byte number n and the printing head height h of the Bluetooth thermal printer, wherein the initial printing speed Va is (Da/n) × h; step S3, printing the data to a paper sheet; step S4, wherein step S4 includes step S41, step S42 and step S43, and step S41 is executed after the data transfer period T is counted in a timer loop, wherein step S42 is executed to determine whether the period buffer data amount Df received in one data transfer period T is zero, and if not, step S43 is executed to calculate the process printing speed Vb, and Vb is (Df/n) h; step S5, step S5 includes step S51, step S52 and step S53, step S51 is to determine whether the difference between the current printing speed and the process printing speed Vb is greater than 2mm/S, if yes, step S52 is executed to change the current printing speed to the process printing speed Vb, and step S3 to step S5 are repeatedly executed, otherwise, step S52 is executed to keep the current printing speed and execute step S3 to step S5.
In step S42 of step S4, if the cycle buffer data amount Df received within one data transfer cycle T is zero, step S65 is performed, and step S65 determines whether the current printing speed is not greater than 1mm/S, and if so, step S66 is performed, which is to quit printing.
If the determination result in the step S65 is no, that is, if the current printing speed is greater than 1mm/S, then step S61 is executed, step S61 is to determine whether the total amount of buffered data D1 is equal to the total amount of print data D2 received by the bluetooth thermal printer, and if the total amount of received buffered data D1 is equal to the total amount of print data D2 received by the bluetooth thermal printer, step S62 is executed, and step S62 is to print the data onto the paper at the current printing speed and continue printing until printing is completed.
If the determination result in the step S61 is no, that is, the total amount of the received buffer data D1 is smaller than the total amount of the print data D2 received by the bluetooth thermal printer, and the total amount of the buffer data D1 is the total amount of the data received by the FIFO buffer, step S63 is executed, that is, it is determined whether the buffer data D3 is smaller than the print head nibble amount n, and the buffer data D3 is the data currently stored in the FIFO buffer, and if so, step S64 is executed, that is, it is determined that the print data transmission is abnormal, and the printing is exited.
If the determination result in step S63 is no, that is, if the cached data D3 is not less than the number n of print head nibbles, the printing speed is adjusted to two-thirds of the current printing speed, and the process returns to step S3 to continue printing.
The initial buffer receiving time Ta is 150ms to 2s, and in this embodiment, the initial buffer receiving time Ta is 1 s. The data transmission period T is 150ms to 2s, and in the embodiment, the data transmission period T is 1 s.
Preferably, the bluetooth thermal printer is a 4-inch 300DPI thermal printer, the number of print dots is 1280, the number of print head dots n is 160 bytes, the height h of the print head is 0.0847mm, and when the actual bluetooth data transmission speed within the initial buffer receiving time Ta is 20k/s, the initial printing speed Va is (Da/n) h, so that the initial printing speed Va is (20000/160) × 0.0847 is 10.5mm/s, and the thermal printer starts printing at 10.5mm/s as the current printing speed.
And then, the timer counts a data transmission period T, the process printing speed Vb is calculated according to the period cache data volume Df received in the data transmission period T, and when Vb is greater than 12.5mm/s or less than 8.5mm/s, the current printing speed is changed into the process printing speed Vb, printing is continued, and the next data transmission period T is entered. And when Vb is not more than 12.5mm/s and not less than 8.5mm/s, keeping the current printing speed unchanged, continuing printing and entering the next data transmission period T.
If the current buffer data D3 stored in the FIFO buffer area is less than 160 bytes, which indicates that the data transmission is abnormal, the printing is stopped.
Determining a process printing speed Vb according to the received data cached in a data transmission period, comparing the process printing speed Vb with the current printing speed, and changing the current printing speed to the process printing speed Vb when the difference between the process printing speed Vb and the current printing speed is not less than 2 mm/S; and when the difference between the two is less than 2mm/S, the printing is continued at the current printing speed. Therefore, the printing speed can be adjusted according to the actual Bluetooth data transmission speed, and the situation that the printing speed cannot be improved due to the fact that the printing speed of the Bluetooth thermal printer is fixed under the condition that the actual Bluetooth data transmission speed is high is avoided.
Bluetooth thermal printer embodiment:
the bluetooth thermal printer provided by the embodiment comprises a printing head and a control system for controlling the printing head to work, wherein the control system comprises a memory, a general controller and a program stored in the memory, and the program is executed by the general controller to realize the steps of the printing control method.
For example, a computer program may be partitioned into one or more modules that are stored in a memory and executed by a processor to implement the modules of the present invention. One or more of the modules may be a series of computer program instruction segments capable of performing certain functions, which are used to describe the execution of the computer program in the terminal device.
The general controller may be a Central Processing Unit (CPU), or other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, or the like. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center of the terminal device and connecting the various parts of the entire terminal device using various interfaces and lines.
The memory may be used to store computer programs and/or modules, and the processor may implement various functions of the terminal device by running or executing the computer programs and/or modules stored in the memory and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Determining a process printing speed Vb according to the received data cached in a data transmission period, comparing the process printing speed Vb with the current printing speed, and changing the current printing speed to the process printing speed Vb when the difference between the process printing speed Vb and the current printing speed is not less than 2 mm/S; and when the difference between the two is less than 2mm/S, the printing is continued at the current printing speed. Therefore, the printing speed can be adjusted according to the actual Bluetooth data transmission speed, and the situation that the printing speed cannot be improved because the printing speed of the thermal printer is a fixed speed under the condition that the actual Bluetooth data transmission speed is high is avoided.
A computer-readable storage medium:
the present embodiment provides a computer-readable storage medium on which a program is stored, the program realizing the respective steps of the above-described print control method when executed by an overall controller.
The program stored in the memory of the bluetooth thermal printer may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, all or part of the flow in the method according to the above embodiment may be implemented by a program, which may be stored in a computer-readable storage medium and may be executed by a processor to implement the steps of the above printing control method.
Where the program comprises computer program code which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals.
Determining a process printing speed Vb according to the received data cached in a data transmission period, comparing the process printing speed Vb with the current printing speed, and changing the current printing speed to the process printing speed Vb when the difference between the process printing speed Vb and the current printing speed is not less than 2 mm/S; and when the difference between the two is less than 2mm/S, the printing is continued at the current printing speed. Therefore, the printing speed can be adjusted according to the actual Bluetooth data transmission speed, and the situation that the printing speed cannot be improved because the printing speed of the thermal printer is a fixed speed under the condition that the actual Bluetooth data transmission speed is high is avoided.
Finally, it should be emphasized that the present invention is not limited to the above-described embodiments, but only the preferred embodiments of the invention have been described above, and the present invention is not limited to the above-described embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A printing control method for a Bluetooth thermal printer is characterized in that: the method comprises the following steps:
step S1, receiving initial cache data, starting a timer to time initial cache receiving time Ta, and recording initial cache data volume Da received in the initial cache receiving time Ta;
step S2, calculating an initial printing speed Va according to the initial buffer data amount Da, the printing head point byte amount n and the printing head height h of the Bluetooth thermal printer, wherein the initial printing speed Va is (Da/n) h;
step S3, printing the data to a paper sheet;
step S4, the timer counts the data transmission period T in a cycle, and determines whether the period buffer data amount Df received in one data transmission period T is zero, if not, calculates the process printing speed Vb, Vb ═ Df/n × h;
and step S5, judging whether the difference between the current printing speed and the process printing speed Vb is greater than 2mm/S, if so, changing the current printing speed to the process printing speed Vb, and repeatedly executing the step S3 to the step S5, otherwise, keeping the current printing speed to continue printing and executing the step S3 to the step S5.
2. A print control method according to claim 1, characterized in that:
if it is determined in the step S4 that the cycle buffer data amount Df received in one of the data transfer cycles T is zero, step S65 is executed to determine whether the current printing speed is not greater than 1mm/S, and if so, printing is exited.
3. A print control method according to claim 2, characterized in that:
if the judgment result in the step S65 is negative and the received total amount of buffered data D1 is equal to the total amount of print data D2 received by the bluetooth thermal printer, printing the data on paper at the current printing speed, and continuing printing until printing is completed.
4. A print control method according to claim 2, characterized in that:
if the determination result in the step S65 is no and the received total amount of buffered data D1 is less than the total amount of print data D2 received by the bluetooth thermal printer, it is determined whether the buffered data D3 is less than the number of print head nibbles n by buffering, and if so, printing is exited.
5. A print control method according to claim 4, wherein:
if the cache data D3 is not less than the number n of print head nibbles, the printing speed is adjusted to be two thirds of the current printing speed, and printing is continued.
6. A print control method according to any one of claims 1 to 5, wherein:
the initial buffer reception time Ta is 150ms to 2 s.
7. A print control method according to claim 6, wherein:
the data transmission period T is 150ms to 2 s.
8. A bluetooth thermal printer comprising a print head and a control system for controlling the operation of said print head, said control system comprising a memory, an overall controller and a program stored on said memory, wherein said program when executed by the overall controller implements the steps of the print control method according to any one of claims 1 to 7.
9. A computer-readable storage medium having a program stored thereon, characterized in that: the program realizes the respective steps of the print control method according to any one of claims 1 to 7 when executed by an overall controller.
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| CN202010404846.7A CN111580761A (en) | 2020-05-13 | 2020-05-13 | Printing control method for Bluetooth thermal printer, Bluetooth thermal printer and computer readable storage medium |
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| CN202010404846.7A CN111580761A (en) | 2020-05-13 | 2020-05-13 | Printing control method for Bluetooth thermal printer, Bluetooth thermal printer and computer readable storage medium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113232427A (en) * | 2021-05-31 | 2021-08-10 | 重庆百瑞互联电子技术有限公司 | Thermal printing system and method based on Bluetooth SOC chip and thermal printer |
| CN113829769A (en) * | 2021-09-30 | 2021-12-24 | 珠海趣印科技有限公司 | Printing speed optimization method and device of Bluetooth printer |
| CN117453162A (en) * | 2023-11-24 | 2024-01-26 | 广州市森扬电子科技有限公司 | Printing off-line speed-reducing printing interruption prevention method, device and storage medium |
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| JP2001121789A (en) * | 1999-10-27 | 2001-05-08 | Toshiba Tec Corp | Printer system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113232427A (en) * | 2021-05-31 | 2021-08-10 | 重庆百瑞互联电子技术有限公司 | Thermal printing system and method based on Bluetooth SOC chip and thermal printer |
| CN113829769A (en) * | 2021-09-30 | 2021-12-24 | 珠海趣印科技有限公司 | Printing speed optimization method and device of Bluetooth printer |
| CN113829769B (en) * | 2021-09-30 | 2023-09-22 | 珠海趣印科技有限公司 | Printing speed optimization method and device for Bluetooth printer |
| CN117453162A (en) * | 2023-11-24 | 2024-01-26 | 广州市森扬电子科技有限公司 | Printing off-line speed-reducing printing interruption prevention method, device and storage medium |
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