CN104044355A - Printing device with RFID read-write function and control method thereof - Google Patents
Printing device with RFID read-write function and control method thereof Download PDFInfo
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- CN104044355A CN104044355A CN201310078671.5A CN201310078671A CN104044355A CN 104044355 A CN104044355 A CN 104044355A CN 201310078671 A CN201310078671 A CN 201310078671A CN 104044355 A CN104044355 A CN 104044355A
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- read
- rfid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/44—Typewriters or selective printing mechanisms having dual functions or combined with, or coupled to, apparatus performing other functions
- B41J3/50—Mechanisms producing characters by printing and also producing a record by other means, e.g. printer combined with RFID writer
Abstract
The invention discloses a printing device with an RFID read-write function and a control method thereof. The printing device comprises an RFID read-write unit (17). The RFID read-write unit (17) is used for carrying out read-write operation on an RFID medium. The control method comprises the following steps: obtaining printing data; and when receiving a control command for starting printing, starting to print the printing data and controlling the RFID read-write unit (17) to carry out read-write operation on the RFID medium. According to the printing device and the control method in the invention, the problem that the processing speed of the printing device with the RFID read-write function on the RFID medium in the prior art is low is solved.
Description
Technical field
The present invention relates to printing field and field of radio frequency identification, in particular to a kind of printing equipment and control method thereof with RFID read-write capability.
Background technology
Along with the promotion and application of technology of Internet of things, RF identification (Radio Frequency Identification is called for short RFID) technology is more and more extensively applied in every field.In RFID technology, RFID antenna and RFID chip are embedded in the media (hereinafter to be referred as RFID medium) such as label or card, by RFID read-write equipment, send rf data, rf data is stored in RFID medium, or by RFID read-write equipment, from RFID medium, read rf data, thereby realize RFID medium, automatically identify.Yet, for some RFID medium, such as train ticket, bus ticket, and paste label on commodity etc., not only will be by its inner RFID chip-stored rf data embedding, also need to be in visual informations such as RFID dielectric surface printable character, bar code, figures, so that card holder or commodity purchaser can be understood RFID medium institute canned data easily.
For meeting the demand, application number is that the Chinese patent of CN201010293411.6 discloses a kind of barcode RF label composite printing device, during printing equipment work, first on label paper, print bar code and other print datas, then label paper is transported to RF identification position, by radio frequency module for reading and writing, write rf data, rf data is stored in the RFID chip of label paper, thereby complete the making of a barcode RF label.
Inventor finds, barcode RF label composite printing device of the prior art (hereinafter referred to as the printing equipment with RFID read-write capability), although use a printing equipment can complete in RFID dielectric surface printed visual information and enter the operation of rf data to RFID media write, but, because could arriving RF identification position after demand motive RFID medium moves a segment distance after completing visual information and printing, printing equipment writes to carry out rf data, also be, visual information is printed and rf data writes serial execution, therefore, the printing equipment in prior art with RFID read-write capability has limited the processing speed of individual RFID medium to a certain extent, cause the processing speed of printing equipment to be difficult to the problem improving.
Summary of the invention
Main purpose of the present invention is to provide a kind of printing equipment and control method thereof of the RFID of having read-write capability, to solve the printing equipment problem low to the processing speed of RFID medium in prior art with RFID read-write capability.
To achieve these goals, according to an aspect of the present invention, provide a kind of control method of printing equipment of the RFID of having read-write capability.Wherein, printing equipment comprises RFID read-write cell, and RFID read-write cell is for carrying out read-write operation to RFID medium, and the method comprises: obtain print data; When receiving the control command that starts printing, start this print data of printing and also control RFID read-write cell described RFID medium is carried out to read-write operation.
Further, control RFID read-write cell carries out read-write operation to RFID medium and comprises: when receiving the control command that starts printing, control RFID read-write cell and RFID medium and carry out data interaction, and judge that whether the data interaction of RFID read-write cell and RFID medium is successful; And if the data interaction of RFID read-write cell and RFID medium is successful, controls RFID read-write cell RFID medium is carried out to read-write operation.
Further, controlling RFID read-write cell carries out read-write operation to RFID medium and comprises: calculate RFID read-write cell RFID medium is carried out to required time of read-write operation and RFID medium can call duration time, wherein, RFID medium can refer to that in the process of carrying RFID medium, RFID read-write cell and RFID medium can successfully carry out the time of data interaction by call duration time; Judge RFID read-write cell to RFID medium carry out the required time of read-write operation whether be greater than RFID medium can call duration time; If RFID read-write cell to RFID medium carry out the required time of read-write operation be greater than RFID medium can call duration time, adjust print speed, so that after adjustment print speed, RFID medium can call duration time be greater than RFID read-write cell RFID medium is carried out to the required time of read-write operation; And control RFID read-write cell RFID medium is carried out to read-write operation, and with the print speed after adjusting, continue to carry out and print.
Further, printing equipment also comprises printhead, RFID read-write cell comprises RFID antenna, RFID antenna is symmetrical with respect to the first centerline axis along medium transport direction, and with respect to symmetrical along the second centerline axis perpendicular to medium transport direction, the first center line overlaps with the width centreline of transfer passage, distance between the second center line and top of form is L2, top of form is the print position of printhead, wherein: before starting print print data, the method also comprises: carry RFID medium to top of form, adjust after print speed, print speed v ' meets: v ' <[f*(L+2*L2-2*L3)]/(8*s), wherein, f is the communication speed between RFID read-write cell and RFID medium, s is the length of the RFID read-write cell rf data that will write and/or read when RFID medium is carried out to read-write operation, L is that RFID medium is along the length of medium transport direction, L3 is the distance between top of form and primary importance, when primary importance is RFID read-write cell and RFID medium data interaction first success, position, forward position along medium transport direction RFID medium, the unit of f is bps, the unit of s is byte, L, the unit of L2 and L3 is millimeter.
Further, adjust after print speed, RFID medium can carry out the required time of read-write operation much larger than RFID read-write cell to RFID medium by call duration time.
Further, adjust after print speed, RFID medium can call duration time be that RFID read-write cell carries out the more than 3 times of required time of read-write operation to RFID medium.
To achieve these goals, according to a further aspect in the invention, provide a kind of printing equipment of the RFID of having read-write capability.This printing equipment comprises: entrance, for receiving RFID medium; Print unit, for carrying out and print at RFID dielectric surface; RFID read-write cell, for carrying out read-write operation to RFID medium; And control module, for obtaining print data, when receiving the control command that starts printing, control print unit startup print print data and also control RFID read-write cell RFID medium is carried out to read-write operation.
Further, control module is also for when receiving the control command that starts printing, control RFID read-write cell and RFID medium and carry out data interaction, and whether the data interaction that judges RFID read-write cell and RFID medium is successful, and when the data interaction success of determining RFID read-write cell and RFID medium, control RFID read-write cell RFID medium is carried out to read-write operation.
Further, control module also for calculate RFID read-write cell RFID medium is carried out to required time of read-write operation and RFID medium can call duration time; Judge RFID read-write cell to RFID medium carry out the required time of read-write operation whether be greater than RFID medium can call duration time; RFID medium is carried out to the required time of read-write operation be greater than RFID medium can call duration time time judging RFID read-write cell, adjust print speed, so that after adjustment print speed, RFID medium can call duration time be greater than RFID read-write cell RFID medium is carried out to the required time of read-write operation; And control RFID read-write cell RFID medium is carried out to read-write operation, and with the print speed after adjusting, continue to carry out and print, wherein, RFID medium can refer to that in the process of carrying RFID medium, RFID read-write cell and RFID medium can successfully carry out the time of data interaction by call duration time.
Further, print unit also comprises printhead, RFID read-write cell comprises RFID antenna, the first centerline axis along medium transport direction is symmetrical with respect to it for RFID antenna, and symmetrical along the second centerline axis perpendicular to medium transport direction with respect to it, and the first center line overlaps with the width centreline of transfer passage, distance between the second center line and top of form is L2, top of form is the print position of printhead, printing equipment also comprises: driver element, be used for driving RFID medium to move at transfer passage, wherein, before starting print print data, this drive unit drives RFID medium is to top of form, control module meets for the print speed v ' controlling after adjustment: v ' <[f*(L+2*L2-2*L3)]/(8*s), wherein, f is the communication speed between RFID read-write cell and RFID medium, s is the length of the RFID read-write cell rf data that will write and/or read when described RFID medium is carried out to read-write operation, L is that RFID medium is along the length of medium transport direction, L3 is the distance between top of form and primary importance, when primary importance is RFID read-write cell and RFID medium data interaction first success, position, forward position along medium transport direction RFID medium, the unit of f is bps, the unit of s is byte, L, the unit of L2 and L3 is millimeter.
Further, control module is used for making to adjust after print speed, RFID medium can call duration time much larger than the transmitting time of the first rf data.
Further, control module is used for making to adjust after print speed, and RFID medium can call duration time be that RFID read-write cell carries out the more than 3 times of required time of read-write operation to RFID medium.
By the present invention, due to when receiving the control command that starts printing, i.e. startup is printed and is controlled RFID read-write cell RFID medium is carried out to read-write operation, thereby, can realize and printing and rf data is read and write and carried out simultaneously, without etc. carry out again the read-write of rf data after end to be printed, solved the printing equipment problem low to the processing speed of RFID medium in prior art with RFID read-write capability.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 forms schematic diagram according to the module of the printing equipment of first embodiment of the invention;
Fig. 2 is according to the schematic diagram of the RFID medium of first embodiment of the invention;
Fig. 3 forms schematic diagram according to the structure of the printing equipment of first embodiment of the invention;
Fig. 4 is the RFID antenna of the RFID read-write cell according to an embodiment of the invention distribution schematic diagram in transfer passage;
Fig. 5 is according to the flow chart of the control method of the printing equipment of first embodiment of the invention;
Fig. 6 is according to the flow chart of the control method of the printing equipment of second embodiment of the invention;
Fig. 7 is according to the flow chart of the control method of the printing equipment of third embodiment of the invention; And
Fig. 8 a to Fig. 8 c is the schematic diagram of its change in location when RFID medium moves in the transfer passage of printing equipment according to an embodiment of the invention.
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Fig. 1 forms schematic diagram according to the module of the printing equipment of first embodiment of the invention.As shown in Figure 1, printing equipment 100 comprises that control module 11, communication unit 12, nonvolatile memory are (in the invention process, the Flash memory of take is described as example) 13, RAM memory 14, print unit 15, driver element 16, RFID read-write cell 17, and sensor unit 18.
Wherein, control module 11, be used for controlling each module execution work, such as, the print data that 11 pairs of communication units of control module 12 receive is processed, and generation will send to the dot array data of the printhead of print unit 15, and control module 11 is controlled print unit 15 and carried out visual information printing, control module 11 is controlled driver element 16 and is driven RFID medium to move in transfer passage, and control module 11 is controlled 17 pairs of RFID media of RFID read-write cell and carried out rf data read-write operation etc.
Communication unit 12, for the data interaction between the main frame of carrying out printing equipment 100 and being connected with printing equipment 100, comprises data that Receiving Host sends, to main frame return data.Wherein, the data that main frame sends comprise control command, print data and rf data etc., control command is used for distinguishing print data, rf data, and for the character that will print, bar code, figure etc. are arranged, such as the print position, width, height etc. of the character that will print, bar code, figure are set; Print data is included in the dot array data of figure of RFID dielectric surface printing, the coding of the heuristicimal code of character or bar code etc.; Rf data refers to the data that will be written in RFID medium, to send to RFID medium and store the data in RFID medium into, these data are for representing the relevant information of ticket, commodity etc., such as, rf data is for representing the amount of money, starting point, destination, the time of departure etc. of ticket, or for representing the title, the amount of money, date of manufacture etc. of commodity.
Flash memory 13, for storing control program, the font file of printing equipment 100, and needed preset parameter in storage control program running, such as, distance L 2 for the detection position of the alignment sensor of storage sensor unit 18 to the distance L 1 of the print position (hereinafter to be referred as top of form) of the printhead of print unit 15, top of form to the center line of the RFID antenna of RFID read-write cell 17, and judge whether that for storing RFID medium covers the predetermined threshold value on the sensor of sensor unit 18 etc.
RAM memory 14, comprises reception buffer zone 141, print buffer 142 and radio frequency buffering district 143.Wherein, the data that reception buffer zone 141 receives for storing communication unit 12, these data comprise control command, print data, rf data etc.; Print buffer 142 is for storing the dot array data of the printhead that will send to print unit 15, dot array data is that the print data of storing in 11 pairs of reception buffer zones 141 of control module is processed generated data, such as, according to the heuristicimal code of character, search font file, from font file, obtain the dot array data corresponding with this character, or carry out calculation process generation dot array data according to the coding of bar code; Radio frequency buffering district 143 is for storing the rf data that will be written to RFID medium, and this rf data is to obtain in the data of being stored from reception buffer zone 141 according to control command by control module 11.
Print unit 15, in RFID dielectric surface printed visual information.Print unit 15 comprises print head controller 151 and printhead 152, and wherein, print head controller 151 is for according to the driving signal of the control signal output print of control module 11 output 152; Printhead 152 drives signal visual information such as printable character, bar code and figure on RFID medium according to this.
Driver element 16, for driving RFID medium to move at transfer passage.Driver element 16 comprises motor driver 161 and motor 162, and wherein, motor driver 161 is for according to the needed electric current of output shaft rotation of the control signal output motor 162 of control module 11 output; The rubber roll arranging in the transfer passage of the output shaft of motor 162 and printing equipment 100 is in transmission connection, and when the output shaft rotation of motor 162, rubber roll rotates thereupon, thereby drives RFID medium to move in transfer passage.
RFID read-write cell 17, for RFID is carried out to read-write operation, comprises to RFID medium and sends rf data and read rf data from RFID medium.RFID read-write cell comprises RFID antenna 171 and RFID controller 172, wherein, RFID antenna 171, for by the variation of self electric current, produces the electromagnetic wave signal of CF, or for according to the electromagnetic wave signal receiving, the electric current of self is changed, RFID controller 172 is electrically connected to control module 11, for encoding to sending to the rf data of RFID medium, and change according to the electric current on this coding-control RFID antenna 171, thereby produce the electromagnetic wave signal of CF, by launching this electromagnetic wave signal, make printing equipment 100 to RFID medium, send rf data by RFID read-write cell 17, simultaneously, RFID controller 172 is also decoded for the electromagnetic wave signal that RFID antenna 171 is received, and the rf data generating after decoding is sent to control module 11, thereby make printing equipment 100 from RFID medium, read rf data by RFID read-write cell 17.
Sensor unit 18, the position for detection of RFID medium in transfer passage.Sensor unit 18 includes paper sensor 181 and alignment sensor 182, wherein, enters paper sensor 181 for detection of whether having RFID medium to be fed to the entry position of transfer passage; Whether alignment sensor 182 arrives the detection position of alignment sensor 182 for detection of the forward position along medium transport direction RFID medium.Entering paper sensor 181 and alignment sensor 182 can be photoelectricity transmission sensor or photoelectric reflection sensor, it comprises optical generator and optical receiver (not marking in figure), optical receiver receives the light of optical generator generation and is translated into the signal of telecommunication, control module 11 reads the magnitude of voltage of optical receiver, and this magnitude of voltage and predetermined threshold value are compared, by judging that the magnitude relationship of the two can judge whether that RFID medium covers on sensor, thereby judge whether RFID medium arrives the detection position of sensor.
In the printing equipment of the present embodiment, after control module 11 obtains print data, when receiving the control command that starts printing, control print unit 15 and start the printing of print data and control 17 pairs of RFID media of RFID read-write cell and carry out read-write operation.Thereby, can realize and printing and rf data is read and write and carried out simultaneously, without etc. carry out again the read-write of rf data after end to be printed.
Fig. 2 is according to the schematic diagram of the RFID medium of first embodiment of the invention.As shown in the figure, in the present embodiment, RFID medium is a kind of rfid card sheet 200, in rfid card sheet 200, be embedded with RFID antenna 21 and RFID chip 22, RFID antenna 21 is for receiving the electromagnetic wave signal by RFID antenna 171 transmittings of the RFID read-write cell 17 of printing equipment 100, and the outside electromagnetic signals of energy that relies on the induced-current that self produces to obtain; RFID chip 22 is decoded as rf data for the electromagnetic wave signal that RFID antenna 21 is received, and store this rf data, and while comprising the order of reading rf data in the rf data that rfid card sheet 200 receives, RFID chip 22 is controlled the corresponding electromagnetic wave signal of RFID antenna 21 transmitting and to RFID read-write cell 17, is sent rf data to realize RFID medium.In addition, also store No. ID of rfid card sheet 200 in RFID chip 22, the ID Shi Youqi production firm of rfid card sheet 200 distributes, and has uniqueness.
As shown in Figure 2, when rfid card sheet 200 is admitted to the transfer passage of printing equipment 100, rfid card sheet 200 is carried in transfer passage along direction shown in arrow A, RFID antenna 21 is embedded in rfid card sheet 200, RFID antenna 21 is center line 23 axial symmetry along medium transport direction with respect to it not only, but also with respect to it along perpendicular to center line 24 axial symmetry of medium transport direction, and RFID antenna 21 has covered most of area of rfid card sheet 200, therefore, when rfid card sheet 200 moves in the transfer passage of printing equipment 100, when RFID antenna 171 electromagnetic signals of the RFID of printing equipment 100 read-write cell 17 and produce while being radiated the electromagnetic field of certain area, as long as the subregion of rfid card sheet 200 enters into the overlay area (hereinafter to be referred as the working region of RFID read-write cell) of this electromagnetic field, the RFID antenna 21 of rfid card sheet 200 just can receive the electromagnetic wave signal of being launched by the RFID antenna 171 of RFID read-write cell 17, when RFID antenna 21 receives enough strong electromagnetic wave signal, the rf data obtaining after 22 decodings of RFID chip is consistent with the rf data that the RFID read-write cell 17 of printing equipment 100 sends, and the RFID antenna 21 of rfid card sheet 200 can obtain the electromagnetic energy with sufficient intensity, thereby outwards launch enough strong electromagnetic wave signal and send rf datas to realize to RFID read-write cell 17.
Fig. 3 forms schematic diagram according to the structure of the printing equipment of first embodiment of the invention.As shown in the figure, RFID medium is admitted to by the entrance 31 of printing equipment 100 that transfer passage 32 is rear to be carried in transfer passage 32 along direction shown in arrow B, entrance 31 places at transfer passage 32 are provided with into paper sensor 181, in transfer passage 32, throughput direction along medium is disposed with alignment sensor 182, print unit 15 and RFID read-write cell 17, print unit 15 can be thermal printer unit, can be also the print units such as pin type, ink-jet, laser.In the present embodiment, print unit 15 is thermal printer unit, comprises the printhead 152 and the rubber roll 33 that are oppositely arranged, and during printing, RFID medium is from passing between the two; RFID read-write cell 17 is positioned at the downstream of print unit 15.
Fig. 4 is the RFID antenna 171 of RFID read-write cell 17 distribution schematic diagram in transfer passage 32, as shown in the figure, RFID antenna 171 is the first center line 41 axial symmetry along medium transport direction with respect to it not only, but also with respect to it along perpendicular to the second center line 42 axial symmetry of medium transport direction, and the first center line 41 of RFID antenna 171 overlaps with the width centreline of transfer passage 32, the distance between the print position (being top of form) 43 of the second center line 42 of RFID antenna 171 and printhead 152 is L2.
The embodiment of the present invention also provides a kind of control method of printing equipment of the RFID of having read-write capability, the control method of the printing equipment with RFID the read-write capability below embodiment of the present invention being provided is introduced, it should be noted that, in the control method providing in the embodiment of the present invention, the object of controlling can be the embodiment of the present invention provide any one there is the printing equipment of RFID read-write capability, equally, the control method that the printing equipment with RFID read-write capability that the embodiment of the present invention provides also can provide for the embodiment of the present invention.
Fig. 5 is according to the flow chart of the control method of the printing equipment of first embodiment of the invention.As shown in Figure 5, the method comprises the following steps:
Step S101, obtains print data
For example, control module receives the data that sent by main frame via communication unit, and these data comprise print data and control command, and further, these data also comprise for being written to the rf data of RFID medium.
Step S102, when receiving the control command that starts printing, starts print print data and also controls 17 pairs of RFID media of RFID read-write cell and carry out read-write operation
When receiving the control command that starts printing, the printing of startup to print data, and control 17 pairs of RFID media of RFID read-write cell simultaneously and carry out read-write operation, namely, using the reception of control command as 17 pairs of RFID media of RFID read-write cell, carry out the trigger condition of read-write operation.
It can be to send rf data so that realization writes the rf data of RFID medium to RFID medium that RFID medium is carried out to read-write operation, can be also to read the rf data having write of storing in RFID medium.
Fig. 6 is according to the flow chart of the control method of the printing equipment of second embodiment of the invention.This embodiment can be used as a kind of preferred embodiment embodiment illustrated in fig. 5, and as shown in Figure 6, the method comprises the following steps:
Step S201, resolves the data that sent by main frame
Control module is resolved the data that sent by main frame that communication unit receives, and by the data separation being sent by main frame, is print data, control command, and when the packet of main frame transmission contains rf data, obtains rf data.For example, the data that sent by main frame that control module receives communication unit are stored in the reception buffer zone of RAM memory, and successively the data of storing in reception buffer zone are resolved, obtain control command, and distinguish print data according to control command, control module is processed and is generated the dot array data (also referred to as print data) that will send to printhead the print data being obtained by reception buffer zone, and dot array data is stored in print buffer, simultaneously, when the packet of main frame transmission contains rf data, control module is distinguished rf data according to control command, and the rf data obtaining from reception buffer zone is stored in radio frequency buffering district successively.
Step S202, when receiving the control command that starts printing, starts and prints
In the control command that communication unit receives, comprise while starting the control command of printing, control module sends to printhead successively by the dot array data of storing in print buffer, and transmit control signal to print head controller, print head driver is according to this control signal output drive signal, make printhead at RFID dielectric surface printing character, bar code, the visual informations such as figure, printhead is carried out in the process of printing, drive unit drives RFID medium moves in transfer passage, such as, the printing of a dot array data of the every execution of printhead, the distance (hereinafter to be referred as some row) of drive unit drives RFID medium mobile least unit in transfer passage.
Step S203, controls RFID read-write cell and RFID medium and carries out data interaction, and judges that whether the data interaction of the two is successful
When starting visual information printing, control module starts between RFID read-write cell and RFID medium and carries out data interaction, concrete methods of realizing is: along with RFID medium moves in transfer passage, control module controls RFID read-write cell at interval of Preset Time and RFID medium carries out data interaction, and whether the data interaction that judges the two is successful, such as, whether control module is controlled RFID read-write cell at interval of Preset Time and is sent and read the order of No. ID of RFID medium, and detect RFID read-write cell and can successfully read No. ID that RFID medium sends.When control module detects RFID read-write cell and can successfully read the ID of RFID medium, judge the data interaction of RFID read-write cell and RFID medium successfully, otherwise, judge that the data interaction of the two is unsuccessful.
Step S204, when judging the data interaction success of RFID read-write cell and RFID medium, controls RFID read-write cell RFID medium is carried out to read-write operation
When judging the data interaction success of RFID read-write cell and RFID medium, control module is controlled RFID read-write cell RFID medium is carried out to read-write operation.Such as, control module is controlled RFID read-write cell and to RFID medium, is sent the order that writes rf data, and control RFID read-write cell the rf data that will be written to RFID medium of storing in the radio frequency buffering district of RAM memory is sent to RFID medium successively, the RFID controller of RFID read-write cell is encoded to the rf data that writes the order of rf data and will be written to RFID medium, RFID controller is controlled the RFID antenna transmission electromagnetic wave signal of RFID read-write cell, the rf data that writes the order of rf data and will be written to RFID medium is sent to the medium of RFID, to realize, to RFID media write, enter rf data, for another example, control module is controlled RFID read-write cell and to RFID medium, is sent the order of reading rf data, the RFID controller of RFID read-write cell is encoded to reading the order of rf data, RFID controller is controlled the RFID antenna transmission electromagnetic wave signal of RFID read-write cell, the order of reading rf data is sent to the medium of RFID, simultaneously, the RFID controller of RFID read-write cell to the RFID antenna reception of RFID read-write cell to electromagnetic wave signal decode, to realize from RFID medium, read the rf data having write.
In the control method of the present embodiment, printing equipment is after starting visual information printing, control RFID read-write cell and RFID medium and carry out data interaction, and whether the data interaction that judges the two is successful, when data interaction when success of the two, control RFID read-write cell RFID medium is carried out to read-write operation.By the control method of the present embodiment, printing equipment can realize the printing of visual information and the read-write operation of rf data carries out simultaneously, without waiting for the read-write of carrying out again rf data after visual information printing finishes, therefore, compared with prior art, improve the processing speed of individual RFID medium, also, improved the processing speed of printing equipment.
Fig. 7 is according to the flow chart of the control method of the printing equipment of third embodiment of the invention.This embodiment can be used as a kind of preferred embodiment embodiment illustrated in fig. 5, and as shown in Figure 7, the method comprises the following steps:
Step S301, carries RFID medium to top of form
When detecting into paper sensor when being uncovered state variation to covered state, control module judges that RFID medium is fed to the entry position of transfer passage, control module is controlled drive unit drives RFID medium and is moved in transfer passage, and in RFID medium moving process the state of detection and location sensor, when alignment sensor is when being uncovered state variation to covered state, control module is judged along medium transport direction, the forward position of RFID medium arrives the detection position of alignment sensor, control module is controlled driver element and is continued to drive RFID medium mobile predeterminable range L1 in transfer passage, make the forward position of RFID medium arrive top of form, wherein, predeterminable range L1 is that the detection position of alignment sensor is to the distance of top of form.
Step S302, resolves the data that sent by main frame
Specifically perform step with step S201.
Step S303, when receiving the control command that starts printing, starts and prints
In the control command that communication unit receives, comprise while starting the control command of printing, control module is controlled print unit and is carried out printing, concrete methods of realizing refer step S202, simultaneously, control module records the distance that RFID medium moves in transfer passage, such as, control module records the some line number that RFID medium moves in transfer passage.
Step S304, controls RFID read-write cell and RFID medium and carries out data interaction, and judges that whether the data interaction of the two is successful
Specifically perform step with step S203.
Step S305, when judging the data interaction success of RFID read-write cell and RFID medium, RFID medium is carried out to the required time of read-write operation to calculating RFID read-write cell and RFID medium can call duration time
When judging the data interaction success of RFID read-write cell and RFID medium, RFID medium is carried out to the required time of read-write operation to control module calculating RFID read-write cell and RFID medium can call duration time.Wherein, RFID read-write cell carries out the required time of read-write operation to RFID medium, refer to by RFID read-write cell and send and will be written to the rf data of RFID medium and/or read the needed time of the rf data having write from RFID medium to RFID medium, the length computation RFID read-write cell of the rf data that control module will write and/or read while RFID medium being carried out to read-write operation according to the communication speed between RFID read-write cell and RFID medium and RFID read-write cell carries out the required time of read-write operation to RFID medium, such as, communication speed between RFID read-write cell and RFID medium is f bps, the length of the rf data that will write and/or read when RFID read-write cell carries out read-write operation to RFID medium is s byte, RFID read-write cell to RFID medium carry out read-write operation required time Weit1(unit for second) be:
T1=(8*s/f) (formula one)
RFID medium can call duration time, refers to that, in the process of carrying RFID medium, RFID read-write cell 17 can successfully carry out the time of data interaction with RFID medium, that is, when the data interaction of RFID read-write cell and RFID medium is successful, the time of data interaction.For example, in carrying the process of RFID medium, control module is controlled RFID read-write cell and RFID medium carries out data interaction, RFID medium is successively through a1He position, position a2, when reaching position a1, RFID read-write cell and RFID medium data interaction first success, between the a2 of a1Zhi position, position, the data interaction of RFID read-write cell and RFID medium all can be successful, after through position a2, the data interaction failure of RFID read-write cell and RFID medium, RFID medium is that RFID medium can call duration time by the time of a1Dao position, position a2.Fig. 8 a to Fig. 8 c is the schematic diagram of RFID medium its change in location while moving in the transfer passage of printing equipment, as shown in Figure 8 a, print while starting, along medium transport direction, the forward position of RFID medium P is positioned at top of form 43, start after visual information printing, RFID medium P moves along direction shown in arrow B in transfer passage 32, control module records the distance that RFID medium P moves in transfer passage 32, and control RFID read-write cell and RFID medium P carries out data interaction, and whether the data interaction that judges the two is successful, as shown in Figure 8 b, when the in-position 44, forward position of RFID medium P, control module is judged RFID read-write cell and RFID medium P data interaction first success, now, if the displacement WeiL3(unit of the RFID medium P that control module records is millimeter), be that distance between top of form 43 and position 44 is L3, from Fig. 8 b, when RFID read-write cell and RFID medium P data interaction first success, the position, forward position 44 of RFID medium P is millimeter with the distance L 4(unit of the second center line 42 of RFID antenna 171) be:
L4=(L2-L3) (formula two)
Wherein, L2(unit is millimeter) be the distance between top of form 43 and the second center line 42 of RFID antenna 171.
Due to the RFID antenna 171 of RFID read-write cell with respect to it along the second center line 42 symmetries perpendicular to medium transport direction, therefore, the electromagnetic field that RFID antenna 171 produces along medium transport direction is with respect to the second center line 42 symmetries.Known according to this principle, as shown in Figure 8 c, RFID medium P moves in transfer passage, along medium transport direction, RFID medium P rear distance L 5 between the second center line 42 of position 45 and RFID antenna 171 is during with L4 approximately equal, the data interaction of RFID read-write cell and RFID medium P is about to failure, therefore, when RFID medium P passes through the working region of RFID read-write cell, can be in the time of successful data interaction at RFID read-write cell and RFID medium P, the displacement L6(unit of RFID medium P is millimeter) be:
L6=L+L4+L5
Due to
L5≈L4
Therefore
L6 ≈ L+2*L4 (formula three)
Wherein, L(unit is millimeter) for RFID medium P is along the length of medium transport direction, the print speed of establishing printing equipment is v mm/second, RFID medium can call duration time t2(unit for second) be:
T2=L6/v (formula four)
By formula two, formula three substitution formula four, obtain:
T2 ≈ (L+2*L2-2*L3)/v (formula five)
Step S306, judge RFID read-write cell to RFID medium carry out the required time of read-write operation whether be greater than RFID medium can call duration time
Control module judge RFID read-write cell to RFID medium carry out the required time t1 of read-write operation whether be greater than RFID medium can call duration time t2, if so, execution step S307, otherwise, execution step S308.
Step S307, carries out the required time of read-write operation according to RFID read-write cell to RFID medium and adjusts print speed
When carrying out the required time t1 of read-write operation to RFID medium, RFID read-write cell is greater than RFID medium can call duration time t2 time, show when RFID medium moves in transfer passage, in RFID read-write cell and RFID medium can the time t2 of successful data interaction, RFID read-write cell can not complete the operation that RFID medium is read and write, therefore, for fear of for to obtain time enough so that RFID read-write cell can complete the operation that RFID medium is read and write, and interruption RFID medium transport and/or printing, control module calculates gained RFID read-write cell according to step S305 carries out the required time t1 adjustment print speed of read-write operation to RFID medium, making to adjust RFID medium after print speed can call duration time be greater than RFID read-write cell RFID medium is carried out to the required time of read-write operation, guarantee in RFID medium can call duration time, RFID read-write cell can complete the operation that RFID medium is read and write.From formula four, v=L6/t2, when RFID medium being set can call duration time with RFID read-write cell, RFID medium being carried out read-write operation the required time, t1 equated, need to be adjusted into print speed v ' (unit is mm/second):
V '=L6/t1 (formula six)
By formula one, formula two, formula three, formula four substitution formula six, obtain:
v’<【f*（L+2*L2-2*L3）】/（8*s）
Therefore, if make RFID medium can call duration time be greater than RFID read-write cell, RFID medium is carried out to the required time of read-write operation, need to make the print speed v ' after adjusting meet v ' <[f*(L+2*L2-2*L3)]/(8*s).
Owing to being subject to the interference of external environment, when RFID medium is carried out to read-write operation, may there is reading and writing failed phenomenon in RFID read-write cell, preferably, reserved enough surpluses when control module prints speed adjustment, make RFID medium much larger than RFID read-write cell, to RFID medium, carry out the required time of read-write operation by call duration time, so that can re-start rf data read-write during the operation failure that RFID read-write cell is read and write RFID medium, such as, by adjusting print speed, make RFID medium can call duration time be greater than RFID read-write cell and RFID medium is carried out to 3 times of the required time t1 of read-write operation, v ' <L6/ (3*t1) is set, thereby make RFID medium can call duration time in, during operation failure that RFID read-write cell is read and write RFID medium, can carry out twice retry.
Step S308, controls RFID read-write cell RFID medium is carried out to read-write operation, and with the print speed after adjusting, continues to carry out and print
Control module is controlled RFID read-write cell RFID medium is carried out to read-write operation, concrete manner of execution refer step S204, and meanwhile, control module is controlled printing equipment and is carried out and print according to the print speed continuation after adjusting.
It should be noted that, in the present embodiment, think that the print speed of printing equipment is identical with the speed that RFID medium moves in transfer passage, in this step, with the print speed after adjusting, continue to carry out to print and comprise: if the dot array data of being stored in print buffer not by Print All, control module is controlled print unit and is continued to print remaining dot array data in print buffer with the print speed after adjusting; If the dot array data of storing in print buffer is all printed, control module is controlled driver element and is continued to drive RFID medium to move in transfer passage with the print speed after adjusting.
In the control method of the present embodiment, printing equipment judge RFID read-write cell to RFID medium carry out the required time of read-write operation whether be greater than RFID medium can call duration time, and RFID medium is carried out to the required time of read-write operation be greater than RFID medium and adjust print speed can call duration time time judging RFID read-write cell, in the situation that not suspending RFID medium transport and/or printing, can also guarantee that RFID read-write cell can complete the operation that RFID medium is read and write, thereby neither affect the processing speed of printing equipment, also improved the reliability of the operation that RFID read-write cell reads and writes RFID medium.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. a control method with the printing equipment of RFID read-write capability, wherein, described printing equipment comprises RFID read-write cell (17), and described RFID read-write cell (17), for RFID medium is carried out to read-write operation, is characterized in that, and described method comprises:
Obtain print data; And
When receiving the control command that starts printing, start the described print data of printing and also control described RFID read-write cell (17) described RFID medium is carried out to read-write operation.
2. method according to claim 1, is characterized in that, controls described RFID read-write cell (17) and described RFID medium is carried out to read-write operation comprises:
When receiving the control command of described startup printing, control described RFID read-write cell (17) and carry out data interaction with described RFID medium, and judge that whether described RFID read-write cell (17) is successful with the data interaction of described RFID medium; And
If described RFID read-write cell (17) is successful with the data interaction of described RFID medium, controls described RFID read-write cell (17) described RFID medium is carried out to read-write operation.
3. method according to claim 2, is characterized in that, controls described RFID read-write cell (17) and described RFID medium is carried out to read-write operation comprises:
Calculate described RFID read-write cell (17) described RFID medium is carried out to required time of read-write operation and described RFID medium can call duration time, wherein, described RFID medium can refer to that, in the process of carrying described RFID medium, described RFID read-write cell (17) can successfully carry out the time of data interaction with described RFID medium by call duration time;
Judge described RFID read-write cell (17) to described RFID medium carry out the required time of read-write operation whether be greater than described RFID medium can call duration time;
If described RFID read-write cell (17) to described RFID medium carry out the required time of read-write operation be greater than described RFID medium can call duration time, adjust print speed, so that adjust after described print speed, described RFID medium can call duration time be greater than described RFID read-write cell (17) described RFID medium is carried out to the required time of read-write operation; And
Control described RFID read-write cell (17) described RFID medium is carried out to read-write operation, and with the described print speed after adjusting, continue to carry out and print.
4. method according to claim 3, it is characterized in that, described printing equipment also comprises printhead (152), described RFID read-write cell (17) comprises RFID antenna (171), described RFID antenna (171) is with respect to the first center line (41) axial symmetry along medium transport direction, and with respect to the second center line (42) axial symmetry along perpendicular to medium transport direction, described the first center line (41) overlaps with the width centreline of transfer passage, distance between described the second center line (42) and top of form is L2, described top of form is the print position of described printhead (152), wherein:
Before starting the described print data of printing, described method also comprises: carry described RFID medium to described top of form,
Adjust after described print speed, described print speed v ' meets:
v’<【f*（L+2*L2-2*L3）】/（8*s）
Wherein, f is the communication speed between described RFID read-write cell (17) and described RFID medium, s is the length of described RFID read-write cell (17) rf data that will write and/or read when described RFID medium is carried out to read-write operation, L is that described RFID medium is along the length of medium transport direction, L3 is the distance between described top of form and primary importance (44), when described primary importance (44) is described RFID read-write cell (17) and described RFID medium data interaction first success, position, forward position along RFID medium described in medium transport direction, the unit of f is bps, the unit of s is byte, L, the unit of L2 and L3 is millimeter.
5. method according to claim 3, is characterized in that, adjusts after described print speed, and described RFID medium can carry out the required time of read-write operation much larger than described RFID read-write cell (17) to described RFID medium by call duration time.
6. method according to claim 5, is characterized in that, adjusts after described print speed, and described RFID medium can call duration time be that described RFID read-write cell (17) carries out the more than 3 times of required time of read-write operation to described RFID medium.
7. a printing equipment with RFID read-write capability, is characterized in that, comprising:
Entrance (31), for receiving RFID medium;
Print unit (15), for carrying out and print at described RFID dielectric surface;
RFID read-write cell (17), for carrying out read-write operation to described RFID medium; And
Control module (11), for obtaining print data, when receiving the control command that starts printing, controls described print unit (15) and starts the described print data of printing and control described RFID read-write cell (17) described RFID medium is carried out to read-write operation.
8. printing equipment according to claim 7, it is characterized in that, described control module (11) is also for when receiving the control command of described startup printing, control described RFID read-write cell (17) and carry out data interaction with described RFID medium, and judge that whether described RFID read-write cell (17) is successful with the data interaction of described RFID medium, and when the data interaction success of determining described RFID read-write cell (17) and described RFID medium, control described RFID read-write cell (17) described RFID medium is carried out to read-write operation.
9. printing equipment according to claim 8, is characterized in that, described control module (11) also for calculate described RFID read-write cell (17) described RFID medium is carried out to required time of read-write operation and described RFID medium can call duration time; Judge described RFID read-write cell (17) to described RFID medium carry out the required time of read-write operation whether be greater than described RFID medium can call duration time; Described RFID medium is carried out to the required time of read-write operation be greater than described RFID medium can call duration time time judging described RFID read-write cell (17), adjust print speed, so that adjust after described print speed, described RFID medium can call duration time be greater than described RFID read-write cell (17) described RFID medium is carried out to the required time of read-write operation; And control described RFID read-write cell (17) described RFID medium is carried out to read-write operation, and with the described print speed after adjusting, continue to carry out and print, wherein, described RFID medium can refer to that, in the process of carrying described RFID medium, described RFID read-write cell (17) can successfully carry out the time of data interaction with described RFID medium by call duration time.
10. printing equipment according to claim 9, it is characterized in that, described print unit (15) also comprises printhead (152), described RFID read-write cell (17) comprises RFID antenna (171), described RFID antenna (171) is the first center line (41) axial symmetry along medium transport direction with respect to it, and the second center line (42) axial symmetry with respect to its edge perpendicular to medium transport direction, described the first center line (41) overlaps with the width centreline of transfer passage, distance between described the second center line (42) and top of form is L2, described top of form is the print position of described printhead (152), described printing equipment also comprises:
Driver element (16), for driving described RFID medium to move at described transfer passage, wherein, before starting the described print data of printing, described driver element (16) drives described RFID medium to move to described top of form,
Described control module (11) meets for the described print speed v ' controlling after adjustment:
v’<【f*（L+2*L2-2*L3）】/（8*s）
Wherein, f is the communication speed between described RFID read-write cell (17) and described RFID medium, s is the length of described RFID read-write cell (17) rf data that will write and/or read when described RFID medium is carried out to read-write operation, L is that described RFID medium is along the length of medium transport direction, L3 is the distance between described top of form and primary importance (44), when described primary importance (44) is described RFID read-write cell (17) and described RFID medium data interaction first success, position, forward position along RFID medium described in medium transport direction, the unit of f is bps, the unit of s is byte, L, the unit of L2 and L3 is millimeter.
11. printing equipments according to claim 9, it is characterized in that, described control module (11) is for making to adjust after described print speed, and described RFID medium can carry out the required time of read-write operation much larger than described RFID read-write cell (17) to described RFID medium by call duration time.
12. printing equipments according to claim 11, it is characterized in that, described control module (11) is for making to adjust after described print speed, and described RFID medium can call duration time be that described RFID read-write cell (17) carries out the more than 3 times of required time of read-write operation to described RFID medium.
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| CN201310078671.5A CN104044355B (en) | 2013-03-12 | 2013-03-12 | There is printing equipment and the control method thereof of RFID read-write function |
| PCT/CN2014/072972 WO2014139370A1 (en) | 2013-03-12 | 2014-03-06 | Printing apparatus having rfid read/write function and control method thereof |
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| CN201310078671.5A CN104044355B (en) | 2013-03-12 | 2013-03-12 | There is printing equipment and the control method thereof of RFID read-write function |
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| WO2014139370A1 (en) | 2014-09-18 |
| CN104044355B (en) | 2016-12-28 |
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