CN101685490A - Radio frequency identification communication system and method thereof - Google Patents
Radio frequency identification communication system and method thereof Download PDFInfo
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- CN101685490A CN101685490A CN200810198832A CN200810198832A CN101685490A CN 101685490 A CN101685490 A CN 101685490A CN 200810198832 A CN200810198832 A CN 200810198832A CN 200810198832 A CN200810198832 A CN 200810198832A CN 101685490 A CN101685490 A CN 101685490A
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Abstract
The invention discloses a radio frequency identification (RFID) communication system and a method thereof. The RFID communication method at least comprises the following steps: initializing a designated channel at a reader and an active RF tag to enable the active RF tag and the reader to communicate via the designated channel; transmitting a designated message continuously by the reader in the first time interval via the designated channel; triggering the receiving state by the active RF tag according to the second time interval so as to receive the designated message; when the designated message is received, comparing the identification code recorded in the designated message with a preset identification code, and judging the validity of the identification code according to the comparison result; and when the identification code is valid, using the identification code to carry out corresponding program processing according to the execution program command of the designated message. The invention can achieve the technical effect of prolonging the use time of the active RF tag.
Description
Technical field
The present invention relates to a kind of radio frequency identification communication system and method thereof, be meant especially and a kind ofly transmit designated message, in order to the radio frequency identification communication system and the method thereof of the receiving mode of dynamic startup active wireless radio frequency label by allocated channel.
Background technology
In recent years, along with radio frequency identification (Radio Frequency Identification, RFID) technology is flourish, various related application are as logistics management, personal identification and stored value card etc., just emerge like the mushrooms after rain.Because RFID is a kind of contactless automatic identification technology, not only operate quick and convenient and identification does not need artificial intervention, therefore, become one of quite popular at present wireless application technology at present.
Generally speaking, rfid system is formed by reader (Reader) and radio-frequency (RF) tag (RFID Tag).Wherein, radio-frequency (RF) tag is common has active and two kinds of passive types, and its main difference is then whether radio-frequency (RF) tag itself possesses power supply.The described radio-frequency (RF) tag that possesses power supply promptly is called active, otherwise then is passive type.Usually no matter radio-frequency (RF) tag is active or passive type, all only being used for transmitting data provides reader to further process, receive data as: reader, and be sent to the backend application system and judge the radio-frequency (RF) tag position or carry out customer identification from active radio frequency tag.
But, when the range of needs of application surface more and more widely the time, people can not satisfy the radio-frequency (RF) tag that transfer mode only is provided gradually, therefore just there is manufacturer to propose to provide the radio-frequency (RF) tag design of receiving mode, be used for receiving the instruction of sending, so that desired processing in the execution command from reader.Yet with the power supply in the active radio frequency tag, required power supply supply when receiving mode is provided will significantly reduce the service time of active radio frequency tag.Though so the ability that aforesaid way possesses active radio frequency tag simultaneously to be transmitted and receive, the electric weight that also so significantly increases active radio frequency tag and consumed particularly produces the problem that expends power supply easily being in for a long time under the receiving mode.
In sum, prior art has existed active radio frequency tag to be in the problem that expends power supply under the receiving mode easily in for a long time always since the midium or long term as can be known, therefore is necessary to propose improved technological means in fact, solves this problem.
Summary of the invention
Because the problem that prior art exists, the present invention has disclosed a kind of radio frequency identification communication system and method thereof.
The disclosed radio frequency identification communication system of the present invention is applicable to standard channel and carries out on the radio frequency identification communication system of wireless radio-frequency communication that this radio frequency identification communication system comprises at least: reader and active radio frequency tag.Wherein, reader is the initialization allocated channel when starting, and continues to transmit designated message at interval in the very first time by allocated channel.In addition, active radio frequency tag comprises: the channel initial module, and initialization dedicated tunnel when being used to start is linking up by dedicated tunnel with reader; Receiver module continues to trigger accepting state according to second time interval, in order to receive designated message; Identification module when receiving designated message, is compared according to the identification code that is write down in default ID and the designated message, and judges the legitimacy of designated message according to comparison result; Processing module when designated message when being legal, is carried out corresponding routine processes in order to the execution of program instructions according to designated message.
As for the radio frequency identification means of communication of the present invention, be applicable to standard channel and carry out on the radio frequency identification communication system of wireless radio-frequency communication, these radio frequency identification means of communication comprise the following steps: to link up by dedicated tunnel can make active radio frequency tag and reader in reader and active radio frequency tag initialization allocated channel at least; Reader continues to transmit designated message at interval in the very first time by dedicated tunnel; Active radio frequency tag continues to trigger accepting state according to second time interval, in order to receive designated message; When receiving designated message, compare according to the identification code that is write down in default ID and the designated message, and judge the legitimacy of designated message according to comparison result; When designated message when being legal, carry out corresponding routine processes in order to execution of program instructions according to designated message.
The disclosed System and method for of the present invention as above, and the difference between the prior art is that the present invention is by setting up allocated channel between reader and active radio frequency tag, and regularly transmit designated message by reader, the active radio frequency tag that regularly starts with order can receive designated message and dynamically enter into receiving mode, carry out and reader between normal communication.
By above-mentioned technological means, the present invention can reach the technology effect of the service time that prolongs active radio frequency tag.
Description of drawings
Fig. 1 is the calcspar of radio frequency identification communication system of the present invention.
Fig. 2 is the process flow diagram of the radio frequency identification means of communication of the present invention.
Fig. 3 receives the synoptic diagram that designated message is raised one's voice and handled for using the present invention.
Fig. 4 receives the synoptic diagram that designated message carries out display process for using the present invention.
Fig. 5 is for using setting-up time of the present invention operation chart at interval.
Embodiment
Below describe conjunction with figs. and embodiment in detail embodiments of the present invention, by this to the present invention how the application technology means implementation procedure that solves technical matters and reach the technology effect can fully understand and implement according to this.
Before explanation disclosed radio frequency identification communication system of the present invention and method thereof, earlier framework of the present invention is described.In the radio frequency identification system of the present invention is applied to have radio-frequency (RF) tag (RFID Tag) and reader (Reader), described radio-frequency (RF) tag is active, that is to say to have battery in order to as power supply device, and the transmission mode between active radio frequency tag and the reader is to carry out wireless transmission by the mode of broadcasting (broadcast).In addition, this radio-frequency (RF) tag is except can passing through standard channel (StandardChannel), that is the channel under the radio RF recognition technology standard, continue to transmit signal to reader, more possess by another channel, promptly allocated channel receives the signal that reader transmits.Be noted that especially active radio frequency tag continues to trigger accepting state at interval according to a period of time, otherwise be preset as idle state so that reduce the power consumption of battery.And reader is except the signal that can receive active radio frequency tag and transmit, also can transmit the designated message that comprises a group identification code by the mode of broadcasting and give specific active radio frequency tag, after all active radio frequency tags receive this designated message, judge whether and to be for further processing according to identification code.
The front is mentioned, active radio frequency tag can continue to trigger accepting state at interval according to a period of time, and the duration of this accepting state must be transmitted the required transmission time of designated message more than or equal to reader, can be in the complete reception of active radio frequency tag of accepting state to guarantee designated message.In addition, the sustainable mode (for example: 5 seconds) in a period of time by broadcasting of reader transmits a plurality of same designated messages, and this section period must be greater than the standby time (being in the accepting state time in addition) of active radio frequency tag, with guarantee reader transmit designated message during in, active radio frequency tag enters an accepting state at least and receives designated message.In addition, reader also can carry out the single transmission in the mode of broadcasting to designated message again when needs transmit designated message.The present invention does not do any qualification to the transmission number of times of designated message.
Then, among the present invention voluntarily the noun of definition make description below, the dedicated tunnel of being mentioned in the present invention is and differs from employed standard channel when transmitting signal, just based on another service aisle scope of radio RF recognition technology.For instance, the active radio frequency tag of standard typically uses the channel of 433KHz when transmission signal, the frequency range of allocated channel can select then that 13.56MHz, 2.45GHz, 860～960MHz or 125KHz are wherein a kind of to be set up for use so, in order to receive the designated message that reader transmitted; Described designated message then comprises the parameter that is used for controlling active radio frequency tag execution designated program, provides active radio frequency tag to handle accordingly.For example: in the designated message that receives, when comprising display parameter or raising one's voice parameter, drive the display device or the loudspeaker arrangement of active radio frequency tag.
In addition, the described time interval comprises two parts at least, and first part is meant that reader sends and is meant the interval time of designated message (be the very first time at interval), second part that active radio frequency tag leaves the time point of receiving mode and enters between the time point of receiving mode every (i.e. second time interval) next time.The described time interval is and sets in advance, and can be by pushing the function key of reader or active radio frequency tag, or set by Wireless transmission mode, its setting means comprises that more by the setting package from gateway (Gateway), one of them carries out the setting in the time interval at least in order to be sent to reader and active radio frequency tag.And when setting, the very first time at interval can be less than second time interval, when avoiding reader to send designated message, is in because of active radio frequency tag in the state in second time interval and can't receives this designated message.
In some concrete instance, may have the nearly setting of 5 kinds of time parameters, as (Ta): reader emission T.T. (as 5sec); (Tb): the time span of every data of reader (as 2ms, i.e. transmission time); (Tc): the interval of every data of reader (as 2ms, promptly the very first time at interval); (Td): active radio frequency tag leaves the time point of receiving mode and enters between the time point of receiving mode every (as above-mentioned second time interval) next time; (Te): active radio frequency tag is waited for time of reception (as 2ms, promptly holding time) after entering the back receiving mode.Its basic setting rule comprises at least: (Ta) need reader emission T.T. to leave the time point of receiving mode and enter between the time point of receiving mode every (as above-mentioned second time interval) next time greater than (Td) active radio frequency tag; (Te) active radio frequency tag is waited for time of reception after entering the back receiving mode, must just can guarantee the reception of every data more than or equal to the interval of every data of (Tc) reader.
In addition, because reader is when transmitting designated message, be to transmit by the mode of broadcasting, so designated message is received by a plurality of active radio frequency tag probably, and can be received and carry out specified program by correct active radio frequency tag in order to ensure designated message, therefore, reader must embed identification code in the designated message, so that all receive the active radio frequency tag of this designated message, can judge whether that all needs handle this designated message according to included identification code.
Next, before the explanation embodiments of the invention, first conjunction with figs. is further described radio frequency identification communication system of the present invention and method thereof, sees also Fig. 1, calcspar for radio frequency identification communication system of the present invention comprises: reader 100 and active radio frequency tag 110.Wherein, be applicable between reader 100 and the active radio frequency tag 110 that standard channel 101 carries out the wireless radio-frequency communication, and reader 100 initialization dedicated tunnel 102 when starting, and transmit designated messages by allocated channel 102; Active radio frequency tag 110 comprises: channel initial module 111, receiver module 112, identification module 113 and processing module 114.
In sum, initialization dedicated tunnel 102 when channel initial module 111 is used to start is can link up another service aisle scope that described dedicated tunnel 102 is a radio RF recognition technology with reader by dedicated tunnel 102; Receiver module 112 continues to trigger accepting state according to the default time interval, in order to receive designated message, and the holding time of accepting state is set at transmission time greater than designated message, and (for example: reader 100 transmits designated messages and needs 0.1 second, then holding time of accepting state then was made as greater than 0.1 second, as: 0.15 second), in addition, holding time of accepting state also can dynamically be adjusted according to the reception condition of designated message, for instance: when receiver module 112 receives designated message, if in default holding time, when its designated message does not receive as yet, promptly increase and hold time till designated message receives, the described time interval describes in the noun of aforementioned definition voluntarily, does not give unnecessary details so do not remake at this.Be noted that the disclosed designated message of the present invention especially, it parameter that comprises is not done any qualification.
As shown in Figure 2, process flow diagram for the radio frequency identification means of communication of the present invention, comprise the following steps: in reader 100 and at least one active radio frequency tag 110 initialization dedicated tunnel 102, link up (step 201) with reader 100 by dedicated tunnel 102 can make respectively this active radio frequency tag 110; Reader 100 continues to transmit at least one designated message (step 202) at interval in the very first time by allocated channel 102; This active radio frequency tag 110 continues to trigger accepting state according to second time interval, in order to receive this designated message (step 203); When receiving this designated message, compare according to the identification code that is write down in default ID and this designated message, and judge the legitimacy (step 204) of this designated message according to comparison result; When designated message when being legal, carry out corresponding routine processes (step 205) in order to execution of program instructions according to this designated message.Pass through above-mentioned steps, can between reader 100 and active radio frequency tag 110, set up allocated channel 102, and regularly transmit designated message by reader 100, the active radio frequency tag 110 that regularly starts with order can receive designated message and dynamically enter into receiving mode, carry out and reader 100 between normal communication, reach the service time that prolongs active radio frequency tag 110 by this.
Below cooperate Fig. 3 to Fig. 5 to carry out following explanation, please consult Fig. 3 earlier and receive the synoptic diagram that designated message is raised one's voice and handled for using the present invention with by way of example.As shown in Figure 3, reader 100 and active radio frequency tag (110a～110c) will be when starting initialization dedicated tunnel 102 (for example: initialization allocated channel 102 is the passage of 13.56MHz), linking up by dedicated tunnel 102, and after finishing initialization process, enter operating state with reader 100.When reader 100 transmitted designated message by dedicated tunnel 102 in the mode of broadcasting (broadcast), this designated message can be packaged into the message package 120 that comprises identification code field 121 and instruction field 122.And active radio frequency tag (110a～110c) can be after channel initial module 111 initialization dedicated tunnel 102, continue to trigger accepting state by receiver module 112 according to a period of time interval (for example: 0.5 second), in order to receive designated message, the holding time of accepting state then is redefined for the transmission time (for example: reader 100 transmits designated messages and needs 0.1 second, and then holding time of accepting state then is made as 0.15 second) greater than designated message.
From the above, when active radio frequency tag (after 110a～110c) receives message package 120, with message package 120 deblockings to obtain designated message, then, identification module 113 is judged the legitimacy of designated message according to the identification code in the designated message (for example: identification code is " 1234 "), and its judgment mode is that (110a～110c) identification code (for example: the identification code of active radio frequency tag 110a is " 1234 ") of itself is compared with active radio frequency tag with this identification code.With this example, the comparison result of active radio frequency tag 110a meets (being that the interior identification code of designated message is identical with the identification code of active radio frequency tag 110a itself) and represents this designated message legal, and all the other active radio frequency tags (comparison result of 110b～110c) does not meet, when so the processing module 114 of active radio frequency tag 110a is legal at designated message, execution of program instructions (being recorded in the instruction field 122 of message package 120) according to designated message is carried out corresponding routine processes, for instance, when as schematically shown in Figure 3 active radio frequency tag 110a had loudspeaker 301, designated message can comprise parameter that control active radio frequency tag 110a raises one's voice sound (for example: send " serge " sound).
In addition, as schematically shown in Figure 4, receive the synoptic diagram that designated message carries out display process for using the present invention.Described active radio frequency tag 110 can be as shown in Figure 4 active radio frequency tag 110d, (for example: LCD) has display device 401, and designated message can comprise the parameter that control active radio frequency tag 110d shows, trigger and show and (for example: the electric weight of active radio frequency tag 110d) to want to offer message that the user learns, and in order to save the electrical source consumption of active radio frequency tag 110d, more can be by solar panels 402 collocation solar cells as another supply unit.Certainly, in order more to save power supply, display device 401 is also replaceable to be the light emitting diode (not shown), and with the mode show message of light emitting diode being lighted or glimmer (for example: represent the electric weight abundance to light five light emitting diodes; Light four light emitting diodes and represent electric weight residue 80% also by that analogy).
The front is mentioned, the time interval comprises two parts, first part is meant that reader 100 sends the interval time of designated message (being very first time interval), second part is meant that active radio frequency tag 110 leaves the time point of receiving mode and the interval (i.e. second time interval) that next time enters the time point of receiving mode, wherein, the described very first time can be set by the button or the wireless transmission of pushing reader 100 at interval, for example: import voluntarily for the user by the function key that is arranged on the reader 100, or reader 100 comes the very first time is provided with at interval by the setting that wireless transmission receives the rear end platform; And second time interval also can be set by the button or the wireless transmission (promptly being received from the designated message that reader 100 is transmitted by dedicated tunnel 102) of pushing active radio frequency tag 110 equally, so cooperate the fixed mode of Fig. 5 exposed installation, see also Fig. 5, for using setting-up time of the present invention operation chart at interval.When the user will set for second time interval, can push the function key that is arranged at active radio frequency tag 110e and not put in one 501 five seconds, then set the interval time in second time interval again according to the number of times of pressing function key 2 502 to enter the Reset Status in second time interval.For instance, on behalf of second time interval, pressing function key 2 502 once be set at 0.1 second, and second interbody spacer was set at 0.2 second when pressing function key 2 502 secondaries were represented, and by that analogy.And carry out the setting in second time interval by Wireless transmission mode, then be to set by the designated message that active radio frequency tag 110e is received, with this example, after active radio frequency tag 110e receives message package 120, self-demarking code field 121 learns that identification code (for example: numerical value 1234), and when instruction field 122 is learnt the setup parameter (for example: parameter value is 0.1 second) in second time interval, active radio frequency tag 110e judges its legitimacy according to the identification code in the identification code field 121, and when being legal, again the parameter value of instruction field 122 is set at the time parameter in second time interval in message package 120.
In sum, difference between the present invention and the prior art is by set up allocated channel 102 between reader 100 and active radio frequency tag 110 as can be known, and regularly transmit designated message by reader 100, the active radio frequency tag 110 that regularly starts with order can receive designated message and dynamically enter into receiving mode, can dynamically adjust the time that active radio frequency tag 110 is in receiving mode by this technological means, solve the existing problem of prior art, and then reach the technology effect of the time of reception that prolongs active radio frequency tag 110.
Though the present invention discloses as above with aforesaid embodiment; right its is not in order to limit the present invention; any technician who is familiar with this technology; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, therefore the scope of patent protection of the present invention claim scope person of defining that must look this instructions is as the criterion.
Claims (20)
1, a kind of radio frequency identification communication system is applicable to standard channel and carries out it is characterized in that on the radio frequency identification communication system of wireless radio-frequency communication that this radio frequency identification communication system comprises at least:
Reader, initialization dedicated tunnel when starting, and continue to transmit at least one designated message at interval in the very first time by this dedicated tunnel; And
At least one active radio frequency tag, wherein respectively this active radio frequency tag comprises:
The channel initial module, this dedicated tunnel of initialization when being used to start is linking up by this dedicated tunnel with this reader;
Receiver module continues to trigger accepting state according to second time interval, in order to receive those designated messages;
Identification module is when receiving those designated messages, according to default ID and those designated messages
In the identification code that write down compare, and judge the legitimacy of those designated messages according to comparison result; And
Processing module when those designated messages when being legal, is carried out corresponding routine processes in order to the execution of program instructions according to those designated messages.
2, radio frequency identification communication system according to claim 1 is characterized in that, this execution of program instructions also comprises the parameter that those active radio frequency tags of control show or raise one's voice.
3, radio frequency identification communication system according to claim 1 is characterized in that, this very first time at interval and this second time interval comprise that also the setting package that transmits by gateway sets.
4, radio frequency identification communication system according to claim 1 is characterized in that, this second time interval can be set by this designated message that this reader transmitted.
5, radio frequency identification communication system according to claim 1 is characterized in that, holding time of this accepting state set according to the transmission time of this designated message.
6, radio frequency identification communication system according to claim 1 is characterized in that, whether holding time of this accepting state is dynamically adjusted according to the end of transmission of this designated message.
7, radio frequency identification communication system according to claim 1 is characterized in that, this default ID and this identification code are the device serial number of this active radio frequency tag.
8, radio frequency identification communication system according to claim 1 is characterized in that, this very first time is at interval less than this second time interval.
9, radio frequency identification communication system according to claim 1 is characterized in that, the duration of this accepting state is transmitted the required transmission time of this designated message more than or equal to this reader.
10, radio frequency identification communication system according to claim 1 is characterized in that, this reader continues the time of those designated messages of broadcasting greater than this second interval time.
11, a kind of radio frequency identification means of communication are applicable to standard channel and carry out it is characterized in that on the radio frequency identification communication system of wireless radio-frequency communication that these radio frequency identification means of communication comprise the following steps: at least
In reader and at least one active radio frequency tag initialization dedicated tunnel, respectively this active radio frequency tag and this reader are linked up by this dedicated tunnel making;
This reader continues to transmit at least one designated message at interval in the very first time by this dedicated tunnel;
Those active radio frequency tags continue to trigger accepting state according to second time interval, in order to receive those designated messages;
When receiving those designated messages, compare according to the identification code that is write down in default ID and those designated messages, and judge the legitimacy of those designated messages according to comparison result; And
When those designated messages when being legal, carry out corresponding routine processes in order to execution of program instructions according to those designated messages.
12, the radio frequency identification means of communication according to claim 11 is characterized in that, this execution of program instructions also comprises the parameter that those active radio frequency tags of control show or raise one's voice.
13, the radio frequency identification means of communication according to claim 11 is characterized in that, this very first time at interval and this second time interval comprise that also the setting package that transmits by gateway sets.
14, the radio frequency identification means of communication according to claim 11 is characterized in that, this second time interval can be set by this designated message that this reader transmitted.
15, the radio frequency identification means of communication according to claim 11 is characterized in that, holding time of this accepting state set according to the transmission time of this designated message.
16, the radio frequency identification means of communication according to claim 13 is characterized in that, whether holding time of this accepting state is dynamically adjusted according to the end of transmission of this designated message.
17, the radio frequency identification means of communication according to claim 11 is characterized in that, this default ID and this identification code are the device serial number of those active radio frequency tags.
18, the radio frequency identification means of communication according to claim 11 is characterized in that, this very first time is at interval less than this second time interval.
19, the radio frequency identification means of communication according to claim 11 is characterized in that, the duration of this accepting state is transmitted the required transmission time of this designated message more than or equal to this reader.
20, the radio frequency identification means of communication according to claim 11 is characterized in that, this reader continues the time of those designated messages of broadcasting greater than this second interval time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810198832A CN101685490A (en) | 2008-09-27 | 2008-09-27 | Radio frequency identification communication system and method thereof |
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| CN200810198832A CN101685490A (en) | 2008-09-27 | 2008-09-27 | Radio frequency identification communication system and method thereof |
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| CN101685490A true CN101685490A (en) | 2010-03-31 |
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| CN200810198832A Pending CN101685490A (en) | 2008-09-27 | 2008-09-27 | Radio frequency identification communication system and method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882661A (en) * | 2011-07-14 | 2013-01-16 | 国民技术股份有限公司 | Data transferring method |
| CN108540174A (en) * | 2017-03-03 | 2018-09-14 | 欧姆龙株式会社 | Wireless sensor system, interactive correspondence device, sensor tag and communication means |
-
2008
- 2008-09-27 CN CN200810198832A patent/CN101685490A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882661A (en) * | 2011-07-14 | 2013-01-16 | 国民技术股份有限公司 | Data transferring method |
| CN102882661B (en) * | 2011-07-14 | 2016-04-06 | 国民技术股份有限公司 | A kind of data transmission method |
| CN108540174A (en) * | 2017-03-03 | 2018-09-14 | 欧姆龙株式会社 | Wireless sensor system, interactive correspondence device, sensor tag and communication means |
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Application publication date: 20100331 |