CN101706861A - Method and device for realizing adaptation of communication protocol of intelligent card - Google Patents
Method and device for realizing adaptation of communication protocol of intelligent card Download PDFInfo
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- CN101706861A CN101706861A CN200910091500A CN200910091500A CN101706861A CN 101706861 A CN101706861 A CN 101706861A CN 200910091500 A CN200910091500 A CN 200910091500A CN 200910091500 A CN200910091500 A CN 200910091500A CN 101706861 A CN101706861 A CN 101706861A
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Abstract
The invention discloses a method and a device for realizing the adaptation of a communication protocol of an intelligent card. According to the technical scheme, the accuracy and the reliability of the adaptation of the communication protocol of the intelligent card can be improved without user participation. The main technical scheme comprises the following steps: acquiring operation state information about a currently configured communication protocol of the intelligent card; and converting the currently configured communication protocol of the intelligent card into a predetermined communication protocol when the configured communication protocol of the intelligent is determined not to match a terminal support communication protocol according to the operation state information.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and device of realizing adaptation of communication protocol of intelligent card.
Background technology
All communication systems all are made up of software systems and these two parts of hardware system, and communication protocol is very important basic link in the software systems, it can be understood that the platform that key interface between software function and the particular hardware and software function realize, based on communication protocol, communication system is finished the transmission of information with mutual.
In the smart card communications field, the various communications protocols type is arranged at present, for example TypeA, TypeB, TypeC, TypeD etc.Existing intelligent card chip generally can be supported these two kinds of communication protocol type of TypeA and TypeB, can also supporting of having comprises the communication protocol of the other types of TypeC, when the communication protocol type of the communication protocol type of smart card operating system Set For Current and terminal does not match, just the communication protocol type of smart card operating system correspondence need be converted to consistent with the communication protocol type of terminal, thereby guarantee can to communicate by letter normally between smart card and the terminal.
Prior art one has proposed a kind of method of manually being selected communication protocol type by the user for smart card operating system, in this method, judge whether to carry out the conversion of the communication protocol of smart card operating system correspondence by the user, and when determining to need conversion, communicate protocol conversion to smart card transmit operation instruction with the control smart card by the user.Generally in the smart card performance history, the corresponding relation of the communication protocol type that pre-defined operational order of smart card developer and smart card are supported, when smart card receives the operational order that the user sends, be the corresponding communication protocol type of operational order with user's transmission with the communication Protocol Conversion of smart card operating system correspondence according to this corresponding relation.This method can realize the conversion of simple communication protocol of intelligent card, but needs the user to judge whether conversion, owing to the subjectivity of user behavior, judges that therefore the opportunity of conversion is inaccurate, thereby makes the switching weak effect; And the realization of this method needs the user to be familiar with the corresponding relation of protocol type and operational order and protocol type, and then determines whether to carry out the conversion of protocol type.And in fact a lot of users and the unclear concrete corresponding protocols type of using so that the realization of this method requires user's operation is high, and because the conversion between the communication protocol is all manually finished by the user, have caused inconvenience to the user.
Prior art two has proposed a kind ofly to differ from the Frame of the current communication protocol type of card intelligence sheet by reception, with the protocol type of selecting smart card system to be supported, particularly:
Smart card is after receiving the instruction that differs from current communication protocol type, chip is automatically with the flag set of certain register of inside, smart card can be checked the set situation of this register-bit in routine processes subsequently, if find this register set, then enter the setting processing module, this module is configured to the type corresponding with the instruction that receives with smart card, thereby realizes type conversion.All smart cards all have one to wait for the state (being holding state) that receives at present, if smart card receives the Frame identical with current protocol type, then smart card is jumped out this holding state, and carries out subsequent operation.If but smart card receives the Frame that differs from current protocol type, then smart card may be jumped out holding state, also may not jump out holding state, and this depends on the performance and the residing radio-frequency field environment of intelligent card chip fully.Generally, intelligent card chip is after jumping out holding state, be used to identify wrong marker bit set with one, if but smart card is receiving the Frame that differs from current protocol type but is not jumping out holding state, then being used to identify wrong marker bit set just can set, cause the repeatedly reception instruction different and can't carry out self-adaptation, thereby influence user's proper communication with current protocol type.
In fact, in a lot of practical application, because the electrical specification of intelligent card chip itself, and the difference (such as magnetic field intensity, depth of modulation, sequential etc.) of concrete environment, the simple stability that relies on chip self character, stability to guarantee that self-adaptation is used is not enough, tends to run into the very low situation of self-adaptation success ratio.For example, same method is applied to different smart cards, and probably because the difference of intelligent card chip characteristic causes some smart card can self-adaptation, and the other smart card can not self-adaptation; Some smart card is adaptive effective, and the adaptive effect of other smart card is bad.Equally, also may be because environment for use, a same sheet smart card can self-adaptation in some environment, but the other environment is following just cannot self-adaptation; Self-adaptation is effective in some environment, but the self-adaptation effect is bad under the other environment.
In sum, in the existing communication protocol of intelligent card conversion method, for the mode that needs the user to participate in, conversion effect difference and user operate inconvenience, for the mode of self-adaptation conversion, the weak effect of conversion, and have the problem that can't in time carry out protocol conversion and influence user's proper communication.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of method and device of realizing adaptation of communication protocol of intelligent card, according to this technical scheme, can improve the accuracy and the reliability of adaptation of communication protocol of intelligent card under the situation that need not user's participation.
The embodiment of the invention is achieved through the following technical solutions:
An aspect according to the embodiment of the invention provides a kind of method that realizes adaptation of communication protocol of intelligent card.
The method of the realization adaptation of communication protocol of intelligent card that provides according to the embodiment of the invention comprises:
Obtain the running state information of the communication protocol of the current configuration of smart card;
When the communication protocol of the communication protocol of determining described smart card configuration according to described running state information and its place terminal support does not match, with the communication protocol of communication Protocol Conversion for presetting of the current configuration of described smart card.
According to another aspect of the embodiment of the invention, also provide a kind of device of realizing adaptation of communication protocol of intelligent card.
The device of the realization adaptation of communication protocol of intelligent card that provides according to the embodiment of the invention comprises:
The state information acquisition unit is used to obtain the running state information of the communication protocol of the current configuration of smart card;
Matching between the determining unit, the communication protocol that is used for determining the configuration of described smart card and the communication protocol of terminal support according to the running state information that described state information acquisition unit obtains;
When conversion unit of protocol, the communication protocol that is used for determining the configuration of described smart card when described determining unit do not match with the communication protocol of its place terminal support, with the communication protocol of communication Protocol Conversion for presetting of the current configuration of described smart card.
Above-mentioned at least one technical scheme that provides by the embodiment of the invention, the running state information of the communication protocol by obtaining the current configuration of smart card, and determine according to the running state information of obtaining whether the communication protocol that disposes in this smart card and the communication protocol of portable terminal support mate, and when determining not match, the communication Protocol Conversion of the current configuration of this smart card is default communication protocol, thereby whether needs carry out self-adaptation can be in time to determine the communication protocol that disposes in this smart card according to the running status of smart card, this process need not the user and participates in, can control the self-adaptation of communication protocol of intelligent card exactly, and improve the reliability of adaptation of communication protocol of intelligent card.
Other features and advantages of the present invention will be set forth in the following description, and, partly from instructions, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the instructions of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of instructions, is used from explanation the present invention with the embodiment of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a method flow diagram of realizing adaptation of communication protocol of intelligent card in the embodiment of the invention;
Fig. 2 will be configured and initialized process flow diagram this communication protocol of intelligent card after smart card powers in the embodiment of the invention;
Fig. 3 is the adaptive treatment scheme one of communication protocol of intelligent card in the embodiment of the invention;
Fig. 4 is the adaptive treatment scheme two of communication protocol of intelligent card in the embodiment of the invention;
Fig. 5 is the adaptive treatment scheme three of communication protocol of intelligent card in the embodiment of the invention;
Fig. 6 is the adaptive treatment scheme four of communication protocol of intelligent card in the embodiment of the invention;
Fig. 7 is the adaptive treatment scheme five of communication protocol of intelligent card in the embodiment of the invention;
Fig. 8 is the adaptive treatment scheme six of communication protocol of intelligent card in the embodiment of the invention;
Fig. 9 is the adaptive treatment scheme seven of communication protocol of intelligent card in the embodiment of the invention;
Figure 10 is a device synoptic diagram one of realizing adaptation of communication protocol of intelligent card in the embodiment of the invention;
Figure 11 is a device synoptic diagram two of realizing adaptation of communication protocol of intelligent card in the embodiment of the invention;
Figure 12 is a device synoptic diagram three of realizing adaptation of communication protocol of intelligent card in the embodiment of the invention;
Figure 13 is a device synoptic diagram four of realizing adaptation of communication protocol of intelligent card in the embodiment of the invention;
Figure 14 is a device synoptic diagram five of realizing adaptation of communication protocol of intelligent card in the embodiment of the invention.
Embodiment
In order to provide the accuracy that improves adaptation of communication protocol of intelligent card and the implementation of self-adaptation effect, the embodiment of the invention provides a kind of method and device of realizing adaptation of communication protocol of intelligent card, below in conjunction with Figure of description the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein only is used for description and interpretation the present invention, and is not used in qualification the present invention.And under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
According to the embodiment of the invention, a kind of method that realizes adaptation of communication protocol of intelligent card at first is provided, can realize the self-adaptation of the communication protocol of communication protocol in the smart card and terminal exactly by this method.
Fig. 1 is a method flow diagram of realizing adaptation of communication protocol of intelligent card in the embodiment of the invention, as shown in Figure 1, mainly comprises the steps:
The running state information that step 102, basis are obtained determines whether the communication protocol of this smart card configuration and the communication protocol of terminal support mate;
According to the embodiment of the invention, after powering on, smart card to be configured and initialization this communication protocol of intelligent card, and concrete processing procedure comprises the steps: as shown in Figure 2
The state that smart card enters before the radio-frequency field is POWER-OFF, i.e. noenergy state, enter radio-frequency field after, smart card obtains energy by the magnetic field coupling, intelligent card chip powers on and carries out following flow process:
In this step, the configuration information that obtains comprises protocol type, transfer rate and other and communicates to connect relevant parameter and variable, uses for subsequent treatment.
The configuration information initialization smart card operating system that step 203, basis are obtained;
By said process promptly finish smart card power on the back communication protocol initialization, smart card promptly enters the self-adaptive processing flow process of communication protocol of intelligent card after the initialization of finishing communication protocol.
In the above-mentioned flow process, default communication protocol type can be accomplished in several ways in the step 201, for example, sets in advance the communication protocol type table, comprises the various communications protocols type in this table, and the corresponding different priority of each communication protocol type.After smart card powers on, the communication protocol type of first priority is defined as the current communication protocol type that will dispose of smart card go forward side by side line correlation configuration and initialization.Wherein, the priority of each communication protocol type dynamically updates according to init state and self-adaptation state in the communication protocol type table, and is specific as follows:
Understand for convenient, suppose to set in advance the communication protocol type table and comprise A, B, C, the communication protocol that D is four types, and priority is followed successively by on earth by height: A-＞B-＞C-＞D, then according to this communication protocol type table, after smart card powers on, the communication protocol of then determining the category-A type is as the current communication protocol that will dispose of smart card and carry out relevant configuration and initialization, upgrade this communication protocol type table based on default update strategy then, wherein update strategy can be provided with flexibly, for example this update strategy can be set to: the current communication protocol type corresponding priorities that has disposed is set to minimum, can be B-＞C-＞D-＞A with the priority update of the communication protocol type that comprises in the communication protocol type table then according to this update strategy, the communication corresponding priorities that is the category-B type is the highest, if the communication protocol and the terminal communication protocol of the current category-A type that has disposed do not match, then the communication protocol in the smart card is converted to the category-B type by the category-A type.
Above-mentioned communication protocol type table upgrades during initialization except the back that powers in terminal, can also upgrade according to the self-adaptation result, and is specific as follows:
When the communication protocol that communication protocol that disposes in determining smart card and terminal are supported is mated, utilize the communication protocol of current smart card configuration to upgrade the communication protocol type table, the communication protocol type that is about to current smart card configuration is updated to first priority in the communication protocol type table.
Should be appreciated that above update strategy for the communication protocol type table can be provided with flexibly, does not enumerate one by one herein.And the communication protocol type table only for a kind of existing way of the various communications protocols type that sets in advance in the embodiment of the invention, can also exist with the alternate manner beyond the tabulation.And, in actual applications, the priority of a communication protocol type in the communication protocol type table also can be set, and select wherein a kind of communication protocol type during the communication protocol in carrying out configurable smart card at random, and the communication protocol type of selecting is designated disposes, this communication protocol type then all is not identified as in row all communication protocol type in the communication protocol type table of selection and disposes next time when selecting.
In the one embodiment of the invention, the running state information of the communication protocol of the current configuration of smart card comprises:
The standby time information (for subsequent descriptions convenient, be called A information) of this smart card after current communication protocol is finished in configuration; Or/and,
This smart card is to the process state information (convenient for subsequent descriptions, as to be called B information) of the data of reception.
Wherein:
The standby time of smart card after current communication protocol is finished in configuration can be realized by counter after finishing the communication protocol of intelligent card configuration; Obtaining A information can determine by the count value that reads counter;
Smart card can be realized by the bit-identify in the register the treatment state of the data of reception, when smart card to the execution of the data that receive processing, then with this bit-identify set, therefore, obtain SM set mode that B information can be by reading this bit-identify to determine that treatment state is for being untreated or handling.
Be to be understood that, the above-mentioned cited A information and the expression mode of B information only are a kind of mode of implementing the embodiment of the invention, can be provided for representing the mode of A information and B information as required flexibly, for example, A information can also represent that B information can also be represented by high-low level, represents to handle by other timing device or Time Triggered device when high level, represent during low level to be untreated, do not enumerate one by one herein.
As shown in Figure 3, after the configuration and initialization finished communication protocol of intelligent card, when the running state information of the communication protocol of the current configuration of smart card comprised A information and realizes counting to the standby time in the A information by counter, the adaptive process of communication protocol of intelligent card comprised:
The communication protocol coupling that step 305, the communication protocol of determining the current configuration of smart card and terminal are supported, and communicate with terminal according to the communication protocol of the current configuration of this smart card and to be connected.
Generally speaking, smart card finish power on and initial configuration after can enter holding state, wait for extraneous instruction.Before this this holding state, initialization is also opened counter.If smart card is not still jumped out holding state before counter overflows, the then extraneous Frame instruction that has sent the communication protocol type that differs from the current configuration of smart card probably of explanation, and owing to the reason of intelligent card chip own has been made the false judgment of not receiving protocol instructions, cause smart card to be in holding state always, thereby can't communicate the self-adaptation of agreement.For fear of this situation, in the above-mentioned flow process, when determining that according to A information the standby time of smart card after current communication protocol is finished in configuration surpasses the setting duration, think that then the communication protocol type of the current configuration of smart card and the communication protocol type of terminal support do not meet, determine that promptly the communication protocol of this smart card configuration and the communication protocol of terminal support do not match.
As shown in Figure 4, after the configuration and initialization finished communication protocol of intelligent card, when the running state information of the communication protocol of the current configuration of smart card comprised B information and represents treatment state in the B information by the bit-identify in the register, the adaptive process of communication protocol of intelligent card comprised:
The communication protocol coupling that step 404, the communication protocol of determining the current configuration of smart card and terminal are supported, and communicate with terminal according to the communication protocol of the current configuration of this smart card and to be connected.
Generally speaking, smart card is when receiving the Frame that is consistent with communication protocol type own, smart card can be handled this Frame according to normal flow, if but smart card is when receiving the Frame that differs from communication protocol type own, though smart card can be jumped out holding state, but may exist because intelligent card chip can't be handled the Frame of receiving and get back to holding state once more, thereby can't communicate the self-adaptation of agreement. for fear of the appearance of this situation, in the above-mentioned flow process, in described process state information when being untreated, think that then the communication protocol type of the current configuration of smart card and the communication protocol type of terminal support do not meet, determine that promptly the communication protocol of this smart card configuration and the communication protocol of terminal support do not match.
As shown in Figure 5, after the configuration and initialization finished communication protocol of intelligent card, when the running state information of the communication protocol of the current configuration of smart card comprises A information and B information, and by counter realize to the standby time in the A information counting, when representing treatment state in the B information by the bit-identify in the register, the adaptive process of communication protocol of intelligent card comprises:
The communication protocol coupling that step 507, the communication protocol of determining the current configuration of smart card and terminal are supported, and communicate with terminal according to the communication protocol of the current configuration of this smart card and to be connected.
In the above-mentioned flow process, the process that reads the value of counter and judge according to the value of the counter that reads with read setting be used for representing the bit-identify state of register of B information and the execution sequence interchangeable of the process judged according to the bit-identify state that reads, promptly when judgement is used for representing the bit-identify set of register of B information, further read the value of counter, and when the value of judging counter is not overflowed, execution in step 507 promptly communicates with terminal according to the communication protocol of the current configuration of this smart card and is connected.
Generally speaking, after smart card is jumped out holding state, smart card is checked the state of counter, if determine that counter does not overflow, then illustrate in setting duration, smart card has received the data that the external world is transmitted, if the communication protocol type of data that receive and the current configuration of smart card coupling, then smart card is handled according to normal flow.If but do not match, then smart card can exist in follow-up processing procedure because of handling and enter holding state, if the instruction type next received all differs from the communication protocol type of the current configuration of smart card, then card can repeat the process of " jump out standby mode-can't handle and receive instruction-enter once more standby mode " always.
Therefore, on the basis of judging according to counter, further with the bit-identify state of the register that is used for representing B information as Rule of judgment.When smart card receives the data command of the communication protocol type that differs from current configuration and this instruction has been carried out processing, the bit-identify set in this register, the expression smart card had been received the instruction with the communication protocol type coupling of current configuration.
In order to improve adaptive accuracy, will determine among this embodiment that the communication protocol of described smart card configuration with the unmatched condition setting of communication protocol of terminal support is: the standby time of smart card after current communication protocol is finished in configuration surpass set duration and to the process state information of the data of reception for being untreated.
In the above-mentioned flow process, judge that in step 505 bit-identify not under the situation of set, can also judge further in setting duration whether treatment state surpasses set point number for the number of times of be untreated (being not set of bit-identify), setting duration when wherein, the setting duration is promptly judged counter.Idiographic flow comprises as shown in Figure 6:
Step 601, initialization are also opened counter;
Step 602, read the value of counter;
Step 603, judge whether the value of counter overflows, promptly whether surpass and set duration, if then execution in step 607, otherwise execution in step 604;
Step 604, read the bit-identify state of register that is used for representing B information of setting;
Step 605, judge the whether set of this bit-identify, if not, then execution in step 606, if then execution in step 608;
Step 606, in setting duration bit-identify not the number of times of set whether surpass set point number N, if, execution in step 607, if not, execution in step 608;
Step 607, the configuration of returning communication protocol of intelligent card and initialization flow process (being flow process shown in Figure 2);
The communication protocol coupling that step 608, the communication protocol of determining the current configuration of smart card and terminal are supported, and communicate with terminal according to the communication protocol of the current configuration of this smart card and to be connected.
Among this embodiment, by judge to set in the duration bit-identify not the number of times of set whether surpass set point number N, further improved the accuracy of adaptation of communication protocol.
In further embodiment of this invention, the running state information of the communication protocol of the current configuration of smart card is except comprising A information, or/and, beyond the B information, also further comprise:
This smart card receives the information (convenient for subsequent descriptions, as to be called C information) that whether is in holding state after the data of the communication protocol type that differs from current configuration.Particularly, smart card receives and whether is in holding state after the data of the communication protocol type that differs from current configuration and can realizes by the bit-identify in the register, also be in holding state receive the data of the communication protocol type that differs from current configuration when smart card after, then with this bit-identify set, therefore, obtain SM set mode that C information can be by reading this bit-identify to determine whether to be in holding state.
As shown in Figure 7, after the configuration and initialization finished communication protocol of intelligent card, when the running state information of the communication protocol of the current configuration of smart card comprises A information and C information, and realize that by counter the adaptive process of communication protocol of intelligent card comprises to the counting of the standby time in the A information, when representing by the bit-identify in the register whether C information is in holding state:
Step 701, initialization are also opened counter;
Step 702, read the value of counter;
Step 703, judge whether the value of counter overflows, promptly whether surpass and set duration, if then execution in step 706, otherwise execution in step 704;
Step 704, read the bit-identify state of register that is used for representing C information of setting;
Step 705, judge the whether set of this bit-identify, if then execution in step 706, otherwise execution in step 707;
Step 706, the configuration of returning communication protocol of intelligent card and initialization flow process (being flow process shown in Figure 2);
The communication protocol coupling that step 707, the communication protocol of determining the current configuration of smart card and terminal are supported, and communicate with terminal according to the communication protocol of the current configuration of this smart card and to be connected.
In the above-mentioned flow process, set duration and when determining also to be in holding state, determine that the communication protocol of this smart card configuration and the communication protocol of terminal support do not match determining that according to A information standby time surpasses according to C information.And in the above-mentioned flow process, execution sequence interchangeable according to the value of counter process of judging and the process of judging according to the SM set mode of bit-identify in the register, promptly at the bit-identify of the register that is used for representing C information not during set, when reading Counter Value and this Counter Value and not overflowing, execution in step 707 promptly communicates with terminal according to the communication protocol of the current configuration of this smart card and is connected.
As shown in Figure 8, after the configuration and initialization finished communication protocol of intelligent card, when the running state information of the communication protocol of the current configuration of smart card comprises B information and C information, and when representing by the bit-identify in the register whether treatment state in the B information and C information are in holding state respectively, the adaptive process of communication protocol of intelligent card comprises:
Step 801, read the bit-identify state of register that is used for representing B information of setting;
Step 802, judge the whether set of this bit-identify, if not, then execution in step 805, otherwise execution in step 803;
Step 803, read the bit-identify state of register that is used for representing C information of setting;
Step 804, judge the whether set of this bit-identify, if then execution in step 805, otherwise execution in step 806;
Step 805, the configuration of returning communication protocol of intelligent card and initialization flow process (being flow process shown in Figure 2);
The communication protocol coupling that step 806, the communication protocol of determining the current configuration of smart card and terminal are supported, and communicate with terminal according to the communication protocol of the current configuration of this smart card and to be connected.
In the above-mentioned flow process, determining that according to B information process state information is for being untreated and when determining also to be in holding state according to C information, determining that the communication protocol of described smart card configuration and the communication protocol of terminal support do not match.And in the above-mentioned flow process, the execution sequence interchangeable of the process of judging according to the bit-identify of the register that is used for representing B information and the process of judging according to the SM set mode of the register bit-identify that is used for representing C information, promptly at the bit-identify of the register that is used for representing C information not during set, when reading the bit-identify of the register that is used for representing B information and this bit-identify set, execution in step 806 promptly communicates with terminal according to the communication protocol of the current configuration of this smart card and is connected.
As shown in Figure 9, after the configuration and initialization finished communication protocol of intelligent card, when the running state information of the communication protocol of the current configuration of smart card comprises A information, B information and C information, and realize that by counter the adaptive process of communication protocol of intelligent card comprises to the counting of the standby time in the A information, when representing by the bit-identify in the register whether treatment state in the B information and C information are in holding state respectively:
The communication protocol coupling that step 909, the communication protocol of determining the current configuration of smart card and terminal are supported, and communicate with terminal according to the communication protocol of the current configuration of this smart card and to be connected.
In the above-mentioned flow process, determine according to A information standby time surpass set duration, according to B information determine process state information be untreated and the information that determines whether to be in holding state according to C information when being, determine that the communication protocol that described smart card disposes and the communication protocol of terminal support do not match.And, according to the deterministic process of A information and executing, according to the deterministic process of B information and executing and according to the execution sequence interchangeable of the deterministic process of C information and executing, no matter with which kind of execution sequence, need to satisfy, the bit-identify set and being used to that the count value of counter do not overflow, be used for representing the register of B information represents that the bit-identify of register of C information is not during set, execution in step 909 promptly communicates with terminal according to the communication protocol of the current configuration of this smart card and is connected.
At Fig. 8, in the flow process shown in Figure 9, promptly when the running state information of the communication protocol of the current configuration of smart card comprises B information at least, the bit-identify of register that is used to represent B information when judgement is not under the situation of set, can also further judge in setting duration, whether treatment state surpasses set point number for the number of times of be untreated (being not set of bit-identify), if surpass set point number, then carry out and return the configuration of communication protocol of intelligent card and the step of initialization flow process, if do not surpass set point number, communication protocol and the terminal then carried out according to the current configuration of this smart card communicate step of connecting, concrete treatment scheme is consistent with ultimate principle shown in Figure 6, is not described in detail herein.
More than in arbitrary flow process, when the communication protocol of the communication protocol of determining the current configuration of smart card and terminal support is mated, the priority of communication protocol type in the communication protocol type table of the current configuration of smart card is made as the first, and purpose is to avoid the smart card back communication protocol type that powers on to fix and the drawback brought.For example, protocol type after smart card powers at every turn all is TypeA, and the communication protocol type of terminal support is TypeB, though the each data interaction of smart card and terminal can be ensured by above-mentioned adaptation mechanism so, but all to by protocol type table carry out same poll after powering at every turn, reduce efficient.So after having determined the smart card communication protocol type identical with the communication protocol of terminal support, just upgrade the communication protocol type table according to the method described above, make just to enter into corresponding handling procedure for the first time after smart card powers on next time, carry out the type poll once more and needn't lose time.
The above method that provides according to the embodiment of the invention, can realize the self-adaptation of communication protocol of intelligent card, in the practical application, after the configuration and initialization of finishing communication protocol according to said method, can further detect whether there is protocol error, for example crc error, check bit mistake, fifo error or the like are if make mistakes, then get back to the instruction of waiting for terminal in the holding state once more, otherwise assert that instruction is correct.If by the check that makes mistakes, count initialized device then, be the standby time of initialization smart card after current communication protocol is finished in configuration, and, set is used to represent the bit-identify of the register of B information, be about to smart card and the treatment state of the data command that receives is updated to handles, and current communication protocol type is updated to first priority at the communication protocol type table.
Describe the adaptive implementation method of communication protocol type of the present invention below for example in detail, suppose that the communication protocol type priority that is provided with in the current communication protocol type table of smart card is A-B-C by high order on earth, the communication protocol type of terminal support is TypeC, and then the smart card operating system adaptive process is as follows:
The first step, smart card enter behind the radio-frequency field chip and obtain energy by the magnetic field coupling and power on, according to the communication protocol type table communication protocol type is configured to TypeA then, and upgrade the communication protocol type table, priority orders from high to low all types of in the communication protocol type table after the renewal are B-C-A.
Second step, smart card setting are also opened counter, enter holding state, wait for that extraneous instruction and the counter that may occur overflow incident.
The 3rd step, smart card jumps out from holding state, because the difference of chip characteristics, smart card might receive that the TypeC protocol instructions just jumped out, and may receive that also the instruction of TypeC is not still jumped out, and overflows just up to counter and jumps out.
If it is owing to received the TypeC instruction that smart card is jumped out, because the communication protocol type of the current configuration of smart card is TypeA, smart card will enter into the treatment scheme of TypeA so, in process to the TypeC instruction process, certainly have the generation protocol error, thereby this smart card comes back to holding state.Under holding state if receive the instruction of TypeC once more, smart card can repeat above process once more, in the time of the N time, smart card is identified for representing the bit-identify set not yet in the register of B information, determine that then the communication protocol type of the current configuration of smart card and the communication protocol type that terminal is supported are inconsistent, need conversion, entered for the 4th step.
If it is because timer overflows that smart card is jumped out, determine directly that then the communication protocol type of the current configuration of smart card and the communication protocol type that terminal is supported are inconsistent, need conversion, entered for the 4th step.
The 4th step, smart card are configured to TypeB according to the priority orders in the communication protocol type table with the communication protocol type of smart card, and renewal communication protocol type table, priority orders from high to low all types of in the communication protocol type table after the renewal are C-A-B, and promptly this time the last communication protocol type of configuration back priority is TypeC.
The 5th step, smart card setting are also opened counter, enter holding state, wait for that extraneous instruction and the counter that may occur overflow incident.
The 6th step, smart card are received the protocol instructions of TypeC under holding state, because the communication protocol type of the current configuration of smart card is TypeB, therefore the instruction that receives still is not inconsistent with protocol type itself, so the same with above-mentioned flow process, the communication protocol type in the smart card is converted to TypeC by TypeB.
The 7th step, smart card are received the protocol instructions of TypeC under holding state, meet with the communication protocol type of the current configuration of smart card, smart card is jumped out holding state, after the communication protocol type that the communication protocol type of determining the current configuration of smart card according to other deterministic process and terminal are supported is consistent, for smart card operating system is communicated by letter with terminal foundation.
According to the embodiment of the invention, a kind of device of realizing adaptation of communication protocol of intelligent card also is provided, be used to realize above-described adaptation of communication protocol of intelligent card.
As shown in figure 10, the device of the realization adaptation of communication protocol of intelligent card that provides of the embodiment of the invention comprises:
State information acquisition unit 1, determining unit 2 and conversion unit of protocol 3; Wherein:
State information acquisition unit 1 is used to obtain the running state information of the communication protocol of the current configuration of smart card;
Matching between the determining unit 2, the communication protocol that is used for determining the configuration of this smart card and the communication protocol of terminal support according to the running state information that state information acquisition unit 1 obtains;
When conversion unit of protocol 3, the communication protocol that is used for determining this smart cards configuration when determining unit 2 do not match with the communication protocol of terminal support, with the communication protocol of communication Protocol Conversion for presetting of the current configuration of this smart card.
As shown in figure 11, among the embodiment, above-mentioned state information acquisition unit 1 comprises: the first state information acquisition module 11; With, the second state information acquisition module 12; Wherein:
The first state information acquisition module 11 is used to obtain the standby time information of smart card after current communication protocol is finished in configuration;
The second state information acquisition module 12 is used to obtain the process state information of smart card to the data of reception.
According to further embodiment of this invention, above-mentioned state information acquisition unit 1 can include only the first state information acquisition module 11, or includes only the second state information acquisition module 12.
According to further embodiment of this invention, above-mentioned determining unit 2 comprises:
First determination module (not marking in the drawings), be used for surpassing when setting duration, determine that the communication protocol of smart card configuration and the communication protocol of terminal support do not match when state information acquisition unit 1 comprises standby time that the first state information acquisition module 11 and this first state information acquisition module 11 obtain.
According to further embodiment of this invention, above-mentioned determining unit 2 comprises:
Second determination module (not marking in the drawings), be used for when being untreated, determining that the communication protocol of smart card configuration and the communication protocol of terminal support do not match when state information acquisition unit 1 comprises process state information that the second state information acquisition module 12 and this second state information acquisition module 12 obtain.
According to further embodiment of this invention, above-mentioned determining unit 2 comprises:
The 3rd determination module (not marking in the drawings), be used for comprising the first state information acquisition module 11 and the second state information acquisition module 12 when state information acquisition unit 1, and the standby time that the first state information acquisition module 11 is obtained surpass to be set process state information that duration, the second state information acquisition module 12 obtain when being untreated, and determines that the communication protocol that smart card disposes and the communication protocol of terminal support do not match.
Particularly, above-mentioned the 3rd determination module also is used for:
In setting duration, treatment state is a untreated number of times when surpassing set point number, determines that the communication protocol of smart card configuration and the communication protocol of terminal support do not match.
As shown in figure 12, according to further embodiment of this invention, above-mentioned state information acquisition unit 1 also comprises:
Third state information acquisition module 13 is used to obtain the information that whether is in holding state after the data that smart card receives the communication protocol type that differs from current configuration.
According to further embodiment of this invention, above-mentioned determining unit 2 comprises:
The 4th determination module (not marking in the drawings), be used for obtaining state information acquisition module 13 when state information acquisition unit 1 comprises the first state information acquisition module 11 and the 3rd, and the standby time that the first state information acquisition module 11 is obtained surpass to be set duration, the 3rd and is obtained the information that whether is in holding state that state information acquisition module 13 obtains when being, determines that the communication protocol that smart card disposes and the communication protocol of terminal support do not match.
According to further embodiment of this invention, above-mentioned determining unit 2 comprises:
The 5th determination module (not marking in the drawings), be used for obtaining state information acquisition module 13 when state information acquisition unit 1 comprises the second state information acquisition module 12 and the 3rd, and the process state information that the second state information acquisition module 12 is obtained is to be untreated, the 3rd to obtain the information that whether is in holding state that state information acquisition module 13 obtains when being, determines that the communication protocol of smart card configuration and the communication protocol of terminal support do not match.
According to further embodiment of this invention, above-mentioned determining unit 2 comprises:
The 6th determination module (not marking in the drawings), be used for obtaining state information acquisition module 13 when state information acquisition unit 1 comprises the first state information acquisition module 11, the second state information acquisition module 12 and the 3rd, and it is to be untreated, the 3rd to obtain the information that whether is in holding state that state information acquisition module 13 obtains when being that the standby time that the first state information acquisition module 11 is obtained surpass to be set process state information that duration, the second state information acquisition module 12 obtain, determines that the communication protocol that smart card disposes and the communication protocol of terminal support do not match.
Particularly, above-mentioned the 6th determination module also is used for:
In setting duration, treatment state is a untreated number of times when surpassing set point number, determines that the communication protocol of smart card configuration and the communication protocol of terminal support do not match.
As shown in figure 13, the device of realization adaptation of communication protocol of intelligent card shown in Figure 10 also comprises: initialization unit 4 and communication unit 5; Wherein:
Initialization unit 4, be used for comprising the first state information acquisition module 11 at least when state information acquisition unit 1, and definite result of determining unit 2 is that communication protocol that communication protocol and the terminal of described smart card configuration supported is when mating, with the standby time information initializing; Or, do not exist when setting protocol error the standby time information initializing in the communication protocol of determining the current configuration of this smart card;
When the communication protocol that communication unit 5, the communication protocol that is used for determining the current configurations of smart card when determining unit 2 and terminal are supported is mated, establish a communications link according to the communication protocol and the terminal of the current configuration of smart card.
As shown in figure 14, the device of realization adaptation of communication protocol of intelligent card shown in Figure 10 also comprises: updating block 6 and communication unit 7; Wherein:
Updating block 6, be used for comprising the second state information acquisition module 12 at least when state information acquisition unit 1, and when the communication protocol that definite result of determining unit 2 supports for the communication protocol of smart card configuration and terminal is mated, process state information is updated to handles; Or, do not exist when setting protocol error process state information is updated in the communication protocol of determining the current configuration of smart card and handle;
When the communication protocol that communication unit 7, the communication protocol that is used for determining the current configurations of smart card when determining unit 2 and terminal are supported is mated, establish a communications link according to the communication protocol and the described terminal of the current configuration of smart card.
Above-mentioned at least one technical scheme that provides by the embodiment of the invention, the running state information of the communication protocol by obtaining the current configuration of smart card, and determine according to the running state information of obtaining whether the communication protocol that disposes in this smart card and the communication protocol of portable terminal support mate, and when determining not match, the communication Protocol Conversion of the current configuration of this smart card is default communication protocol, thereby whether needs carry out self-adaptation can be in time to determine the communication protocol that disposes in this smart card according to the running status of smart card, this process need not the user and participates in, can control the self-adaptation of communication protocol of intelligent card exactly, and improve the reliability of adaptation of communication protocol of intelligent card.
In the above embodiment of the present invention, smart card is adjusted the communication protocol type of configuration according to default communication protocol type table, the communication protocol type of communication protocol type that communication protocol type table medium priority is lower than current configuration is as next one communication protocol type to be configured, and when the communication protocol type of the communication protocol type of current configuration and terminal support does not match, carry out corresponding configuration, so that smart card transfers another communication protocol type to.After configuration was finished, smart card entered standby mode once more, handles according to above method.Equally, if the communication protocol type compatibility that the communication protocol type of new configuration still can't be supported with terminal, then smart card is changed next communication protocol type after the same method once more, the rest may be inferred, and the communication protocol type that disposes in smart card is consistent with the communication protocol type that terminal is supported.
Therefore, can avoid receiving the instability of the register flag bit of the information that whether is in holding state after the data of the communication protocol type that differs from current configuration according to the embodiment of the invention owing to be used to represent smart card in the intelligent card chip that characteristic difference, the terminal environment of living in of intelligent card chip does not cause on an equal basis, and the high problem of bringing of self-adaptation mortality.Therefore, even the equal reason of the electrical specification of intelligent card chip makes smart card to make right judgement to the instruction that differs from protocol type own exactly, the said method that adopts embodiments of the invention to provide can make smart card finish adaptation function reliably.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (16)
1. the adaptive approach of a communication protocol of intelligent card is characterized in that, comprising:
Obtain the running state information of the communication protocol of the current configuration of smart card;
When the communication protocol of the communication protocol of determining described smart card configuration according to described running state information and its place terminal support does not match, with the communication protocol of communication Protocol Conversion for presetting of the current configuration of described smart card.
2. the method for claim 1 is characterized in that, described running state information comprises:
The standby time information of described smart card after current communication protocol is finished in configuration; Or/and,
Described smart card is to the process state information of the data command of reception.
3. method as claimed in claim 2 is characterized in that,
When described running state information comprises described standby time information, determine that according to described running state information the communication protocol of described smart card configuration and the communication protocol of terminal support do not match, comprise: when described standby time surpasses the setting duration, determine that the communication protocol of described smart card configuration and the communication protocol of terminal support do not match; Or,
When described running state information comprises described standby time information and described process state information, determine that according to described running state information the communication protocol of described smart card configuration and the communication protocol of terminal support do not match, comprise: surpass to set duration and described process state information when being untreated at described standby time, determine that the communication protocol that described smart card disposes and the communication protocol of terminal support do not match; Or,
When described running state information comprises described process state information, determine that according to described running state information the communication protocol of described smart card configuration and the communication protocol of terminal support do not match, comprise: when being untreated, determine that the communication protocol of described smart card configuration and the communication protocol of terminal support do not match in described process state information.
4. method as claimed in claim 2 is characterized in that, described running state information also comprises:
Described smart card receives the information that whether is in holding state after the data of the communication protocol type that differs from current configuration.
5. method as claimed in claim 4 is characterized in that,
When described running state information comprises described standby time information and the described information that whether is in holding state, determine that according to described running state information the communication protocol of described smart card configuration and the communication protocol of terminal support do not match, comprise: surpass to set duration and the described information that whether is in holding state when being at described standby time, determine that the communication protocol that described smart card disposes and the communication protocol of terminal support do not match; Or,
When described running state information comprises described process state information and the described information that whether is in holding state, determine that according to described running state information the communication protocol of described smart card configuration and the communication protocol of terminal support do not match, comprise: described process state information be untreated and the described information that whether is in holding state when being, determine that the communication protocol of described smart card configuration and the communication protocol of terminal support do not match; Or,
When described running state information comprises described standby time information, described process state information and the described information that whether is in holding state, determine that according to described running state information the communication protocol of described smart card configuration and the communication protocol of terminal support do not match, comprise: described standby time surpass to set duration, described process state information be untreated and the described information that whether is in holding state when being, determine that the communication protocol that described smart card disposes and the communication protocol of terminal support do not match.
6. as claim 3 or 5 described methods, it is characterized in that, when running state information comprises described standby time information and described process state information at least, determine that according to described running state information the communication protocol of described smart card configuration and the communication protocol of terminal support do not match, and also comprise:
In described setting duration, described treatment state is that untreated number of times surpasses set point number.
7. as claim 2 or 4 described methods, it is characterized in that,
When described running state information comprises described standby time information at least, when the communication protocol coupling of the communication protocol of determining described smart card configuration according to described running state information and terminal support, also comprise: with described standby time information initializing, or, do not exist when setting protocol error described standby time information initializing in the communication protocol of determining the current configuration of described smart card; And establish a communications link according to the communication protocol and the described terminal of the current configuration of described smart card;
Or,
When described running state information comprises described process state information at least, when the communication protocol coupling of the communication protocol of determining described smart card configuration according to described running state information and terminal support, also comprise: described process state information is updated to handles, or, do not exist when setting protocol error described process state information is updated in the communication protocol of determining the current configuration of described smart card and handle; And establish a communications link according to the communication protocol and the described terminal of the current configuration of described smart card.
8. a device of realizing adaptation of communication protocol of intelligent card is characterized in that, comprising:
The state information acquisition unit is used to obtain the running state information of the communication protocol of the current configuration of smart card;
Matching between the determining unit, the communication protocol that is used for determining the configuration of described smart card and the communication protocol of its place terminal support according to the running state information that described state information acquisition unit obtains;
When conversion unit of protocol, the communication protocol that is used for determining the configuration of described smart card when described determining unit do not match with the communication protocol of terminal support, with the communication protocol of communication Protocol Conversion for presetting of the current configuration of described smart card.
9. device as claimed in claim 8 is characterized in that, described state information acquisition unit comprises:
The first state information acquisition module is used to obtain the standby time information of described smart card after current communication protocol is finished in configuration; Or/and,
The second state information acquisition module is used to obtain the process state information of described smart card to the data of reception.
10. device as claimed in claim 9 is characterized in that, described determining unit comprises:
First determination module, be used for surpassing when setting duration, determine that the communication protocol of described smart card configuration and the communication protocol of terminal support do not match when described state information acquisition unit comprises described standby time that the first state information acquisition module and the described first state information acquisition module obtain; Or,
Second determination module, be used for when being untreated, determining that the communication protocol of described smart card configuration and the communication protocol of terminal support do not match when described state information acquisition unit comprises described process state information that the second state information acquisition module and the described second state information acquisition module obtain; Or,
The 3rd determination module, be used for comprising the first state information acquisition module and the second state information acquisition module when described state information acquisition unit, and the described standby time that the described first state information acquisition module is obtained surpass to be set described process state information that duration, the described second state information acquisition module obtain when being untreated, and determines that the communication protocol that described smart card disposes and the communication protocol of terminal support do not match.
11. device as claimed in claim 10 is characterized in that, described the 3rd determination module also is used for:
In described setting duration, described treatment state is a untreated number of times when surpassing set point number, determines that the communication protocol of described smart card configuration and the communication protocol of terminal support do not match.
12. device as claimed in claim 9 is characterized in that, described state information acquisition unit also comprises:
Third state information acquisition module is used to obtain the information that whether is in holding state after the data that described smart card receives the communication protocol type that differs from current configuration.
13. device as claimed in claim 12 is characterized in that, described determining unit comprises:
The 4th determination module, be used for obtaining the state information acquisition module when described state information acquisition unit comprises the first state information acquisition module and the 3rd, and the described information that whether is in holding state that the described standby time that the described first state information acquisition module is obtained surpass to set that duration, the described the 3rd obtains that the state information acquisition module obtains is when being, determines that the communication protocol that described smart card disposes and the communication protocol of terminal support do not match; Or,
The 5th determination module, be used for obtaining the state information acquisition module when described state information acquisition unit comprises the second state information acquisition module and the 3rd, and the described process state information that the described second state information acquisition module is obtained be untreated, the described the 3rd described information that whether is in holding state of obtaining that the state information acquisition module obtains when being, determine that the communication protocol of described smart card configuration and the communication protocol of terminal support do not match; Or,
The 6th determination module, be used for comprising the first state information acquisition module when described state information acquisition unit, the second state information acquisition module and the 3rd is obtained the state information acquisition module, and the described standby time that the described first state information acquisition module is obtained surpasses sets duration, the described process state information that the described second state information acquisition module is obtained is for being untreated, the described the 3rd described information that whether is in holding state of obtaining that the state information acquisition module obtains determines that the communication protocol of described smart card configuration and the communication protocol of terminal support do not match when being.
14. device as claimed in claim 13 is characterized in that, described the 6th determination module also is used for:
In described setting duration, described treatment state is a untreated number of times when surpassing set point number, determines that the communication protocol of described smart card configuration and the communication protocol of terminal support do not match.
15. as claim 9 or 12 described devices, it is characterized in that, also comprise:
Initialization unit, be used for comprising the first state information acquisition module at least when described state information acquisition unit, and definite result of described determining unit is that communication protocol that communication protocol and the terminal of described smart card configuration supported is when mating, with described standby time information initializing; Or, do not exist when setting protocol error described standby time information initializing in the communication protocol of determining the current configuration of described smart card;
Communication unit is used for establishing a communications link according to the communication protocol and the described terminal of the current configuration of described smart card.
16. as claim 9 or 12 described devices, it is characterized in that, also comprise:
Updating block, be used for comprising the second state information acquisition module at least when described state information acquisition unit, and definite result of described determining unit is a communication protocol that communication protocol and the terminal of described smart card configuration supported when mating, and described process state information is updated to handles; Or, do not exist when setting protocol error described process state information is updated in the communication protocol of determining the current configuration of described smart card and handle;
Communication unit is used for establishing a communications link according to the communication protocol and the described terminal of the current configuration of described smart card.
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| CN200910091500.XA CN101706861B (en) | 2009-08-24 | 2009-08-24 | Method and device for realizing adaptation of communication protocol of intelligent card |
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| CN200910091500.XA CN101706861B (en) | 2009-08-24 | 2009-08-24 | Method and device for realizing adaptation of communication protocol of intelligent card |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102255999A (en) * | 2011-03-09 | 2011-11-23 | 北京道通天下信息科技有限责任公司 | Method for determining communication protocol between terminal and smart card and expansion card |
| US20130198427A1 (en) * | 2012-01-30 | 2013-08-01 | Infineon Technologies Ag | System and method for a bus interface |
| CN105785853A (en) * | 2015-01-08 | 2016-07-20 | 费希尔-罗斯蒙特系统公司 | A device and a method for coupling a field apparatus to a controller communicatingly in a process control system |
| CN110210597A (en) * | 2019-07-02 | 2019-09-06 | 金邦达有限公司 | Smart card and communications protocol switching method |
| CN110557395A (en) * | 2019-09-06 | 2019-12-10 | 东信和平科技股份有限公司 | Secure element access interface protocol adaptation method and device |
| CN114827302A (en) * | 2022-04-06 | 2022-07-29 | 广东万颗子智控科技有限公司 | Communication protocol adaptation method, device, equipment and storage medium |
| CN114880139A (en) * | 2022-04-26 | 2022-08-09 | 阿里巴巴（中国）有限公司 | Task scheduling method, device and system |
| CN115442572A (en) * | 2021-06-04 | 2022-12-06 | 西安诺瓦星云科技股份有限公司 | Data transmission method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB9806069D0 (en) * | 1998-03-20 | 1998-05-20 | Mondex Int Ltd | Integrated circuit card |
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| CN102255999A (en) * | 2011-03-09 | 2011-11-23 | 北京道通天下信息科技有限责任公司 | Method for determining communication protocol between terminal and smart card and expansion card |
| CN102255999B (en) * | 2011-03-09 | 2014-02-05 | 北京道通天下信息科技有限责任公司 | Method for determining communication protocol between terminal and smart card and expansion card |
| US20130198427A1 (en) * | 2012-01-30 | 2013-08-01 | Infineon Technologies Ag | System and method for a bus interface |
| US8775714B2 (en) * | 2012-01-30 | 2014-07-08 | Infineon Technologies Ag | System and method for a bus interface |
| US9817782B2 (en) | 2012-01-30 | 2017-11-14 | Infineon Technologies Ag | System and method for a bus interface |
| CN105785853A (en) * | 2015-01-08 | 2016-07-20 | 费希尔-罗斯蒙特系统公司 | A device and a method for coupling a field apparatus to a controller communicatingly in a process control system |
| CN110210597A (en) * | 2019-07-02 | 2019-09-06 | 金邦达有限公司 | Smart card and communications protocol switching method |
| CN110557395A (en) * | 2019-09-06 | 2019-12-10 | 东信和平科技股份有限公司 | Secure element access interface protocol adaptation method and device |
| CN110557395B (en) * | 2019-09-06 | 2021-07-02 | 东信和平科技股份有限公司 | Secure element access interface protocol adaptation method and device |
| CN115442572A (en) * | 2021-06-04 | 2022-12-06 | 西安诺瓦星云科技股份有限公司 | Data transmission method and device |
| CN114827302A (en) * | 2022-04-06 | 2022-07-29 | 广东万颗子智控科技有限公司 | Communication protocol adaptation method, device, equipment and storage medium |
| CN114827302B (en) * | 2022-04-06 | 2024-03-12 | 广东万颗子智控科技有限公司 | Communication protocol adaptation method, device, equipment and storage medium |
| CN114880139A (en) * | 2022-04-26 | 2022-08-09 | 阿里巴巴（中国）有限公司 | Task scheduling method, device and system |
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| CN101706861B (en) | 2014-04-23 |
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