CN111679798A - Multi-connection data management method for Bluetooth printer - Google Patents
Multi-connection data management method for Bluetooth printer Download PDFInfo
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- CN111679798A CN111679798A CN202010496960.7A CN202010496960A CN111679798A CN 111679798 A CN111679798 A CN 111679798A CN 202010496960 A CN202010496960 A CN 202010496960A CN 111679798 A CN111679798 A CN 111679798A
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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
- G06F3/1203—Improving or facilitating administration, e.g. print 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
- G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
- G06F3/1236—Connection 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
- G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
- G06F3/1237—Print job management
- G06F3/126—Job scheduling, e.g. queuing, determine appropriate device
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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
- G06F3/1274—Deleting of print job
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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
- G06F3/1292—Mobile client, e.g. wireless printing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a multi-connection data management method for a Bluetooth printer, and belongs to the technical field of Bluetooth wireless communication. The multi-connection data management method of the Bluetooth printer comprises the following steps: establishing connection; a print data transmission step; a first printing step, wherein the Bluetooth module takes the first received printing data as current printing data, and correspondingly sets a current link and current Bluetooth equipment, the printing module receives the current printing data and prints the current printing data, and the Bluetooth module continues to receive second printing data in the current Bluetooth equipment after printing is finished; a second printing step, after the first printing step is finished, the second printing step is executed by the corresponding printing data in the residual Bluetooth equipment; and (4) circulating, namely repeatedly printing the second step by the Bluetooth printer according to the time sequence of receiving the first printing data until the printing data of each Bluetooth device is printed. The invention ensures that data in a plurality of Bluetooth devices are printed in sequence and avoids disordered printing.
Description
Technical Field
The invention relates to the technical field of Bluetooth wireless communication, in particular to a multi-connection data management method for a Bluetooth printer.
Background
Portable bluetooth printers are becoming more widely used. The Bluetooth printer mainly comprises a Bluetooth module and a printing module, wherein the Bluetooth module is responsible for data transmission, the printing module is responsible for data printing, and the two modules are connected through a Universal Asynchronous Receiver Transmitter (UART). When the Bluetooth printer is connected with only one device, and the device prints, after the Bluetooth module receives the print data, the data is directly transmitted to the print module through the UART, and the print module is responsible for printing. However, in practical applications, particularly in offices, there is a demand for one bluetooth printer to be connected to a plurality of devices at the same time. If many equipment print simultaneously, after bluetooth module received the data of many equipment, directly send data to print module, will appear the information simultaneous printing of different equipment, lead to printing in disorder phenomenon.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the multi-connection data management method for the Bluetooth printer is provided, data received by the Bluetooth module are effectively managed, and the condition of printing disorder is avoided.
In order to achieve the above purpose, the invention adopts a technical scheme that: a data management method for multi-connection of a Bluetooth printer is provided, which comprises the following steps: establishing connection, namely establishing a Bluetooth link between one Bluetooth printer and at least two Bluetooth devices respectively; the method comprises the steps of printing data transmission, wherein at least two Bluetooth devices simultaneously send corresponding first printing data to a Bluetooth module in a Bluetooth printer, and the Bluetooth module adds the first printing data in each Bluetooth device to a data chain table, wherein the first printing data is the first printing data sent by each Bluetooth device to the Bluetooth printer; a first step of printing, in which a Bluetooth module takes first received print data as current print data according to a receiving time sequence, a Bluetooth link corresponding to the current print data is taken as a current link, a Bluetooth device corresponding to the current link is taken as a current Bluetooth device, the Bluetooth module sends the current print data to a print module in a Bluetooth printer, a data link table deletes the corresponding first print data, the print module prints, the Bluetooth module receives second print data in the current Bluetooth device and prohibits the transmission of second print data in other Bluetooth devices in the printing process of the print module until the print data in the current device is printed, a second step of printing is carried out, in the deleted data link table, the Bluetooth module takes the first received print data as the current print data, and adjusts the corresponding current link and the current Bluetooth device in sequence, the Bluetooth module sends the current printing data to the printing module, the data chain table deletes corresponding first printing data, then the printing module prints, and the Bluetooth module recovers transmission of second printing data in the current Bluetooth equipment and sends the second printing data to the printing module for printing in the printing process until the printing of the printing data in the current Bluetooth equipment is finished; and the second step is repeatedly printed by the Bluetooth printer according to the time sequence of receiving the first printing data until the printing of the printing data in each Bluetooth device is finished.
The second technical scheme adopted by the invention is as follows: a computer readable storage medium storing computer instructions comprising computer instructions operable to perform a data management method of bluetooth printer multi-connectivity in scheme one.
The third technical scheme adopted by the invention is as follows: a computer device comprising a processor and a memory, the memory storing computer instructions, comprising, the processor operating the computer instructions to perform a method of data management for bluetooth printer multi-connectivity in scenario one.
The invention has the beneficial effects that: the Bluetooth module sequentially prints data of multiple devices in a flow control mode, and the condition of disordered printing is effectively avoided.
Drawings
FIG. 1 is a process diagram of a data management method for multiple connections of a Bluetooth printer according to the present invention;
FIG. 2 is a flowchart of a data management method for multiple connections of a Bluetooth printer according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. The detailed description is merely intended to facilitate an understanding of the invention, and the scope of the invention is not limited to the specific description in the specific embodiments.
It is noted that the terms first and second in the claims, description and abstract of this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Fig. 1 shows an embodiment of a multi-connection data management method for a bluetooth printer according to the present invention, in which the method mainly includes the following steps:
step S101: and establishing a connection.
The Bluetooth printer (Bluetooth printer) applies the Bluetooth technology to the printer, gets rid of the inconvenience caused by the connection of the printer, realizes wireless printing, can reduce the influence of cables, and can move the printer away from the host computer at will. The Bluetooth printer mainly comprises a Bluetooth module and a printing module, wherein the Bluetooth module is responsible for data transmission, and the printing module is responsible for data printing.
In one embodiment of the invention, a bluetooth printer and at least two bluetooth devices each establish a bluetooth link, and this step is intended to provide for print data transmission.
In a particular embodiment of the invention, the bluetooth device comprises a classic bluetooth device and/or a bluetooth low energy device. The Bluetooth device can be a Bluetooth mobile phone, a Bluetooth computer, a Bluetooth headset and the like. A Bluetooth printer can be connected with 8 Bluetooth devices, including 7 classic Bluetooth devices and 1 low-power Bluetooth device.
Step S102: and transmitting the printing data.
In this embodiment, at least two bluetooth devices print simultaneously, that is, all the bluetooth devices transmit first print data simultaneously, where the first print data is the first print data transmitted by each bluetooth device to the bluetooth printer. The purpose of this step is to make simultaneous printing possible for multiple bluetooth devices.
Then, the bluetooth module receives the first print data sent by each bluetooth device in sequence, and then adds all the first print data to the data link list. The purpose of this step is to know the time of reception of print data for each bluetooth device and to ensure that the print data for each device is successfully transmitted.
Step S103: a first step of printing.
In this specific embodiment, the bluetooth module takes the first print data received first as the current print data, the bluetooth link corresponding to the current print data as the current link, and simultaneously takes one bluetooth device corresponding to the current link as the current bluetooth device according to the receiving time sequence. Then the Bluetooth module sends the current printing data to a printing module in the Bluetooth printer, at the moment, the data chain table can automatically delete the first printing data sent to the printing module, and the printing module receives and executes the printing function. In the printing process, the Bluetooth module continues to receive second printing data in the current Bluetooth equipment and adds the second printing data to the data linked list. When the Bluetooth module sends the second printing data to the printing module, the second printing data is deleted from the data chain table, and the printing module receives the second printing data and prints the second printing data. After the printing of the second printing data in the current Bluetooth equipment is finished, the Bluetooth module judges that the sending of the printing data in the current Bluetooth equipment is finished if the Bluetooth module does not receive the corresponding next printing data in the current Bluetooth equipment after the preset time, wherein the second printing data is the printing data of each Bluetooth equipment except the corresponding first printing data. Preferably, the preset time is 2 s.
Meanwhile, in order to avoid the printing disorder, in the printing process of the first current Bluetooth device, the Bluetooth module can prevent other unprinted Bluetooth devices from sending second printing data to the Bluetooth module in a flow control mode. The purpose of this process is to ensure that after the data printing of one bluetooth device is completed, the data of the next bluetooth device is printed.
Step S104: and printing the second step.
In this specific embodiment, after the first step of printing is completed, in the remaining first print data in the data link table, the bluetooth module takes the first print data received first as the current print data, takes the bluetooth link corresponding to the current print data as the current link, and takes the bluetooth device corresponding to the current link as the current bluetooth device. Then the bluetooth module sends the current print data to the print module, and the data link table can delete the first print data who sends for the print module automatically this moment, and the print module receives and carries out the printing function, and at the printing in-process, the bluetooth module resumes the transmission of second print data in the current bluetooth equipment through the mode of bluetooth flow control to add the second print data to the data link table. When the Bluetooth module sends the second printing data to the printing module, the second printing data is deleted from the data chain table, and the printing module receives the second printing data and prints the second printing data. After the second printing data is printed, the next printing data in the current Bluetooth equipment is not received within the preset time, and the printing data in the current Bluetooth equipment is sent completely. Preferably, the preset time is 2 seconds.
Step S105: and (5) circulating.
And in the remaining unprinted Bluetooth devices, the Bluetooth printer repeatedly prints the second step according to the time sequence of receiving the first printing data until the printing of the printing data in each Bluetooth device is finished.
The printing of a plurality of Bluetooth devices can be sequentially realized through the management of printing data and output in a Bluetooth flow control mode of the method, and the condition of disordered printing can be effectively avoided.
The following describes a data management method for multiple connections of a bluetooth printer according to an embodiment of the present invention. Two bluetooth devices a and B are connected to a bluetooth printer to print simultaneously, as shown in fig. 2, the printing according to the method of the present invention requires the following steps:
and a connection establishing step, namely establishing Bluetooth links a and b by the Bluetooth devices of the Bluetooth printer and A, B through Bluetooth technology.
A print data transmission step of printing A and B simultaneously, A transmitting first print data A1B sending first print data B1. Bluetooth module in Bluetooth printerBlock receiving first print data A1And B1And a is1And B1Added to the linked list.
A first step of printing, wherein the Bluetooth module transmits the printing data according to the receiving time sequence, and if the Bluetooth module receives the first printing data A first1Then the first print data A1As the current print data, the bluetooth link a is taken as the current link, and a is taken as the current bluetooth device. The Bluetooth module prints the first print data A1Sending to a printing module in the Bluetooth printer, and automatically deleting A in the linked list1，The printing module carries out A1When printing of (A)1After printing, the Bluetooth module continues to receive the second printing data A in the printing data A2And sending the data to a printing module for printing and printing data A2After printing, the Bluetooth module can continue to receive the second printing data A in the printing data A3And sending the data to the printing module for printing, and circulating the steps until the Bluetooth module does not receive the next printing data A corresponding to the second printing data An in the data A for more than 2sn+1And D, judging that all the printing data in the step A are printed. Meanwhile, in the printing process of the printing data in the step A, the Bluetooth module prohibits the step B from sending second printing data Bn to the Bluetooth module in a Bluetooth flow control mode.
A second step of printing, when the printing data in A is printed, the Bluetooth module receives the printing data B1As the current print data, the bluetooth link B is taken as the current link, and B is taken as the current bluetooth device. The Bluetooth module prints data B1Sending the data to a printing module for printing, and automatically deleting a linked list B1. Print data B1And in the printing process, the Bluetooth module recovers the transmission of the printing data in the step B in a Bluetooth flow control mode. The Bluetooth module receives the printing data B in the B2And sending the data to a printing module for printing and printing data B2After printing, the Bluetooth module can continue to receive the printing data B in the data B3And sending the data to a printing module for printing, and circulating the steps until the Bluetooth module does not receive the printing data B in the data B for more than 2snCorresponding next print data Bn+1Then, the print data in B is judgedAnd finishing printing.
The various illustrative logics, logical blocks, and modules described in this disclosure in connection with a method for data management for bluetooth printer multi-connectivity may be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the methods for dynamically negotiating bluetooth connection intervals herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
The data management method of the invention for multi-connection of a Bluetooth printer can be directly implemented in hardware, in a software module executed by a processor or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A multi-connection data management method for a Bluetooth printer is characterized by comprising the following steps:
establishing connection, namely establishing a Bluetooth link between one Bluetooth printer and at least two Bluetooth devices respectively;
a print data transmission step, in which the at least two bluetooth devices simultaneously send corresponding first print data to a bluetooth module in the bluetooth printer, and the bluetooth module adds the first print data in each bluetooth device to a data chain table, where the first print data is the first print data sent by each bluetooth device to the bluetooth printer;
a first step of printing, in which the Bluetooth module takes the first print data received first as current print data in order of reception time, taking the Bluetooth link corresponding to the current printing data as a current link, taking the Bluetooth device corresponding to the current link as a current Bluetooth device, the bluetooth module sends the current print data to a print module in the bluetooth printer, the data link list deletes the corresponding first print data, and the print module prints the first print data, the Bluetooth module receives second printing data in the current Bluetooth equipment and forbids the transmission of the second printing data in other Bluetooth equipment in the printing module printing process until the printing of the printing data in the current equipment is finished, wherein the second print data is the print data from each of the bluetooth devices after the first print data is removed;
a second step of printing, in the deleted data linked list, the bluetooth module takes the first print data received first as current print data, and adjusts a corresponding current link and current bluetooth equipment, the bluetooth module sends the current print data to the print module, the data linked list deletes the corresponding first print data, then the print module prints, and the bluetooth module resumes transmission of the second print data in the current bluetooth equipment and sends the second print data to the print module for printing in the printing process until the print data in the current bluetooth equipment is printed completely; and
and the second step of printing is repeated by the Bluetooth printer according to the time sequence of receiving the first printing data until the printing of the printing data in each Bluetooth device is finished.
2. The method for managing the data of multiple connections of the bluetooth printer according to claim 1, further comprising determining that the transmission of the print data in the current bluetooth device is completed when the bluetooth module does not receive the corresponding next print data in the current bluetooth device within a preset time after the second print data in the current bluetooth device is completely printed.
3. The data management method for multiple connections of a bluetooth printer according to claim 2, wherein the preset time is 2 s.
4. The data management method for multiple connections of a bluetooth printer according to claim 1, wherein the bluetooth module prohibits or resumes transmission of the second print data by bluetooth flow control.
5. The method for managing the data of the multiple connections of the bluetooth printer according to claim 1, wherein the bluetooth module adds the received second print data to the data link table, and then the bluetooth module sends the second print data to the print module, and the data link table deletes the corresponding second print data.
6. The data management method of claim 1, wherein the bluetooth device comprises a classic bluetooth device and/or a bluetooth low energy device.
7. A computer readable storage medium storing computer instructions, wherein the computer instructions are operable to perform the data management method for bluetooth printer multi-connectivity of any one of claims 1-6.
8. A computer device comprising a processor and a memory, the memory storing computer instructions, wherein:
the processor operates the computer instructions to perform the method of data management of a bluetooth printer multi-connection of any one of claims 1-6.
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