CN105574576A - RFID label chip processing method and device - Google Patents
RFID label chip processing method and device Download PDFInfo
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- CN105574576A CN105574576A CN201510753095.9A CN201510753095A CN105574576A CN 105574576 A CN105574576 A CN 105574576A CN 201510753095 A CN201510753095 A CN 201510753095A CN 105574576 A CN105574576 A CN 105574576A
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Abstract
The invention discloses an RFID label chip processing method and device. The method comprises the following steps: dividing a protocol processing time into n time phases and presetting operations corresponding to the time phases, wherein n is an integer greater than 1 and different time phases are used for executing different operations; and in the protocol processing phase, controlling a corresponding function circuit to execute a corresponding operation according to the current time phase.
Description
Technical field
The present invention relates to technical field of RFID, particularly relate to a kind of disposal route and device of RFID label chip.
Background technology
Radio-frequency (RF) identification (RFID, RadioFrequencyIdentification) technology is one and utilizes radiofrequency signal by Space Coupling (alternating magnetic field or electromagnetic field) principle, realize non-contacting information transmission, and pass through the technology of the information realization target identification of transmission.Usually, rfid system comprises read write line (Reader), label (Tag) and system software.Rfid system can be divided into low frequency (30KHz ~ 300KHz), high frequency (3MHz ~ 30MHz), ultrahigh frequency (300MHz ~ 915MHz), microwave (more than 1GHz) by frequency of operation.
Ultrahigh frequency recognition technology has low cost, feature that operating distance is far away, this technology receives and continues to pay close attention to widely in recent years, particularly along with the proposition of Internet of Things concept, and global promotion, the application of ultrahigh frequency recognition technology has expanded to the every field such as telecommunications, the management of financial industry asset equipment, metal parts management, enterprise's valuable asset management, automatic vehicle identification, becomes the focus of current RFID technique development.And how to reduce the power consumption of RFID chip inside, be the problem of long-standing problem.
Summary of the invention
For solving the technical matters of existing existence, the embodiment of the present invention expects the disposal route and the device that provide a kind of RFID label chip.
For achieving the above object, the embodiment of the present invention realizes in the following ways:
Embodiments provide a kind of disposal route of radio frequency identification (RFID) labels chip, described method comprises:
Is divided into n time phase the protocol processes time, n be greater than 1 integer, and preset the respective operations of each time phase, wherein, different time phases is for performing different operations;
In the protocol processes stage, control corresponding functional circuit unit according to current residing time phase and perform corresponding operation.
Wherein, the described protocol processes time is the time receiving order and reply between response, and the operation of protocol processes is all positioned at the described protocol processes time.
Wherein, described method also comprises: is divided into 6 time phases the protocol processes time, and is preset in the operation that the stage very first time performs generation random number, does not perform other operation; Perform the operation of reading password or inside tags time slot counter being set at the second time phase, do not perform other operation; Perform the encryption and decryption operation of secure communication at the 3rd time phase, do not perform other operation; Perform the energy measuring operation of label at the 4th time phase, do not perform other operation; Perform the operation writing multiple programmable MTP storer at the 5th time phase, do not perform other operation; The 6th time phase executing state machine redirect and put corresponding emission type operation, do not perform other operation.
The embodiment of the present invention additionally provides a kind for the treatment of apparatus of radio frequency identification (RFID) labels chip, and described device comprises: system control unit and functional circuit unit,
Described system control unit, for the protocol processes time is divided into n time phase, n be greater than 1 integer, and preset the respective operations of each time phase, wherein, different time phases is for performing different operations; Also in the protocol processes stage, control corresponding functional circuit unit according to current residing time phase and perform corresponding operation;
Described functional circuit unit, in the protocol processes stage, performs corresponding operation according to the control of described system control unit.
Wherein, the described protocol processes time is the time receiving order and reply between response, and the operation of protocol processes is all positioned at the described protocol processes time.
Wherein, described system control unit is further used for, and is divided into 6 time phases the protocol processes time, and is preset in the operation that the stage very first time performs generation random number, does not perform other operation; Perform the operation of reading password or inside tags time slot counter being set at the second time phase, do not perform other operation; Perform the encryption and decryption operation of secure communication at the 3rd time phase, do not perform other operation; Perform the energy measuring operation of label at the 4th time phase, do not perform other operation; Perform the operation writing multiple programmable MTP storer at the 5th time phase, do not perform other operation; The 6th time phase executing state machine redirect and put corresponding emission type operation, do not perform other operation.
The disposal route of a kind of RFID label chip that the embodiment of the present invention provides and device, adopt different circuit in the thought of different time work, the temporal working stage of classifying rationally protocol processes, by the design on circuit structure, each stage only has minimum circuit unit work, decrease the power consumption consumption of irrelevant circuit, reduce the power consumption of chip internal as much as possible, thus achieve the better working sensitivity of label chip.
Accompanying drawing explanation
Fig. 1 is the divided stages schematic diagram of protocol processes time in the embodiment of the present invention;
Fig. 2 is protocol processes time division of operations schematic diagram stage by stage in the embodiment of the present invention;
Fig. 3 is the treating apparatus structural representation of RFID label chip in the embodiment of the present invention;
Fig. 4 is the divided stages of protocol processes time in the embodiment of the present invention and operates and the corresponding schematic diagram of circuit unit;
Fig. 5 is the internal state transition diagram of system control unit in the embodiment of the present invention;
Fig. 6 is the control interface schematic diagram of functional circuit unit A in the embodiment of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the present invention is further elaborated.
The embodiment of the present invention proposes a kind of disposal route of RFID label chip, be intended to the protocol treatment circuit realizing RFID label chip, have employed the thought of different circuit in different time work, by the design on circuit structure, decrease the power consumption of chip internal as much as possible.
Based on above-mentioned thought, the disposal route of a kind of RFID label chip that the embodiment of the present invention provides mainly comprises:
A) time of protocol processes divides
In the time range of protocol processes, according to the different command received, process corresponding different operation.The divided stages of protocol processes time as shown in Figure 1, in the time receiving order and reply between response, namely define in order to the protocol processes time, because provide energy in the protocol processes time, so the operation of protocol processes is all placed on during this period of time, reception and transmission phase power consumption can be reduced.Meanwhile, in the protocol processes stage, the time can be divided into n stage, go to perform different operations in this different phase.
Such as, as shown in Figure 2, different operations at least comprises the operation signal stage by stage of protocol processes time: produce random number; Read password or inside tags time slot counter is set; The encryption and decryption operation of secure communication; The energy measuring of label; Write MTP storer; The redirect of state machine and put corresponding emission type.These operation point different times carry out, the feature of operation is summarized, is divided into 6 stage: 1stage (i.e. the stage very first time), 2stage (i.e. the second time phase), 3stage (i.e. the 3rd time phase), 4stage (i.e. the 4th time phase), 5stage (i.e. the 5th time phase), 6stage (i.e. the 6th time phase) in time.
B) different operating of time phase is divided, see Fig. 2:
1stage (RNG): carry out the operation producing random number, does not produce other operation;
2stage (RD_CNT): carry out reading password or the operation of inside tags time slot counter is set, do not produce other operation;
3stage (SEC): the encryption and decryption operation securely communicated, does not produce other operation;
4stage (PE): the energy measuring operation carrying out label, does not produce other operation;
5stage (WR_MTP): carry out writing multiple programmable (MTP, MultipleTimeProgrammable) storage operation, does not produce other operation;
6stage (TX_TYPE): carry out the redirect of state machine and put the operation of corresponding emission type, not producing other operation.
The disposal route of corresponding above-mentioned RFID label chip, the embodiment of the present invention also provides a kind for the treatment of apparatus of RFID label chip, and as shown in Figure 3, this device comprises:
A) SYSTEM_CTRL (i.e. system control unit)
Be responsible for label protocol process chief coordinator, in the different phase of protocol processes, according to condition, start different circuit unit and carry out work.
B) functional circuit unit
A unit: for generation of random number;
Unit B: for read password, or put time slot counter;
C unit: the encryption and decryption operation of secure communication;
Whether sufficient D unit: for starting the energy measuring of label, judge to write MTP memory block energy;
E unit: for writing MTP;
F unit: for State Transferring, puts emission type, the operation of tag indicator position.
Correspond to protocol processes time phase, as shown in Fig. 4 protocol treatment circuit implement device working stage, each functional circuit unit public affairs are only in corresponding stage work.
A unit: only work at 1stage (RNG);
Unit B: only work at 2stage (RD_CNT);
C unit: only work at 3stage (SEC);
D unit: only work at 4stage (PE);
E unit: only work at 5stage (WR_MTP);
F unit: only work at 6stage (TX_TYPE).
Below SYSTEM_CTRL unit and each functional circuit unit are described:
The realization of SYSTEM_CTRL (system control unit) adopts state machine control mode to realize, as shown in Figure 5, each startup SYSTEM_CTRL unit all can start this state machine, the corresponding related circuit cell operation of value of state machine, as state machine value be RNG time, enable A circuit unit work, so successively enable A, B, C, D, E, F circuit unit work.
Each functional circuit unit, concrete function realizes not being described, and mainly describes the control to its circuit unit.
Each functional unit circuit all starts enable by SYSTEM_CTRL (system control unit), also has concrete controlled condition in addition.For A circuit unit, functional circuit unit control A circuit unit as shown in Figure 6, is described below:
The work of A circuit unit is enable to be produced by SYSTEM_CTRL (system control unit), and only have when state machine value is RNG, A circuit unit just obtains enable;
A circuit unit work simultaneously also has other condition, and A circuit unit condition of work receives order instruction and is confirmed whether to carry out work, and the condition as A circuit unit just carries out RNG acquisition in group command of making an inventory;
A circuit unit work simultaneously is also subject to the impact of the Output rusults STATE of F circuit unit, when the current label state of its instruction is also as another condition of A circuit unit work.
In sum, the embodiment of the present invention adopts different circuit in the thought of different time work, the temporal working stage of classifying rationally protocol processes, by the design on circuit structure, each stage only has minimum circuit unit work, decrease the power consumption consumption of irrelevant circuit, reduce the power consumption of chip internal as much as possible, thus achieve the better working sensitivity of label chip.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (6)
1. a disposal route for radio frequency identification (RFID) labels chip, is characterized in that, described method comprises:
Is divided into n time phase the protocol processes time, n be greater than 1 integer, and preset the respective operations of each time phase, wherein, different time phases is for performing different operations;
In the protocol processes stage, control corresponding functional circuit unit according to current residing time phase and perform corresponding operation.
2. the disposal route of RFID label chip according to claim 1, is characterized in that, the described protocol processes time is receive order and the time of replying between response, and the operation of protocol processes is all positioned at the described protocol processes time.
3. the disposal route of RFID label chip according to claim 1 or 2, it is characterized in that, described method also comprises: is divided into 6 time phases the protocol processes time, and is preset in the operation that the stage very first time performs generation random number, does not perform other operation; Perform the operation of reading password or inside tags time slot counter being set at the second time phase, do not perform other operation; Perform the encryption and decryption operation of secure communication at the 3rd time phase, do not perform other operation; Perform the energy measuring operation of label at the 4th time phase, do not perform other operation; Perform the operation writing multiple programmable MTP storer at the 5th time phase, do not perform other operation; The 6th time phase executing state machine redirect and put corresponding emission type operation, do not perform other operation.
4. a treating apparatus for radio frequency identification (RFID) labels chip, is characterized in that, described device comprises: system control unit and functional circuit unit,
Described system control unit, for the protocol processes time is divided into n time phase, n be greater than 1 integer, and preset the respective operations of each time phase, wherein, different time phases is for performing different operations; Also in the protocol processes stage, control corresponding functional circuit unit according to current residing time phase and perform corresponding operation;
Described functional circuit unit, in the protocol processes stage, performs corresponding operation according to the control of described system control unit.
5. the treating apparatus of RFID label chip according to claim 4, is characterized in that, the described protocol processes time is receive order and the time of replying between response, and the operation of protocol processes is all positioned at the described protocol processes time.
6. the treating apparatus of RFID label chip according to claim 4 or 5, it is characterized in that, described system control unit is further used for, and is divided into 6 time phases the protocol processes time, and be preset in the operation that the stage very first time performs generation random number, do not perform other operation; Perform the operation of reading password or inside tags time slot counter being set at the second time phase, do not perform other operation; Perform the encryption and decryption operation of secure communication at the 3rd time phase, do not perform other operation; Perform the energy measuring operation of label at the 4th time phase, do not perform other operation; Perform the operation writing multiple programmable MTP storer at the 5th time phase, do not perform other operation; The 6th time phase executing state machine redirect and put corresponding emission type operation, do not perform other operation.
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| CN201510753095.9A CN105574576A (en) | 2015-11-09 | 2015-11-09 | RFID label chip processing method and device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8058974B2 (en) * | 2008-03-31 | 2011-11-15 | Fujitsu Limited | Integrated circuit processing device and integrated circuit processing method |
| CN202584175U (en) * | 2012-05-25 | 2012-12-05 | 无锡里外半导体科技有限公司 | Wireless sensor realized by RFID tag |
| CN103500348A (en) * | 2013-09-27 | 2014-01-08 | 爱康普科技（大连）有限公司 | Enhanced RFID (radio frequency identification) communication method |
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- 2015-11-09 CN CN201510753095.9A patent/CN105574576A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8058974B2 (en) * | 2008-03-31 | 2011-11-15 | Fujitsu Limited | Integrated circuit processing device and integrated circuit processing method |
| CN202584175U (en) * | 2012-05-25 | 2012-12-05 | 无锡里外半导体科技有限公司 | Wireless sensor realized by RFID tag |
| CN103500348A (en) * | 2013-09-27 | 2014-01-08 | 爱康普科技（大连）有限公司 | Enhanced RFID (radio frequency identification) communication method |
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Application publication date: 20160511 |