WO2013026366A1 - Method, system and apparatus for avoiding communication conflict - Google Patents

Abstract

A method, system and apparatus for avoiding a communication conflict are provided. The method for avoiding the communication conflict includes the following steps: sending conflict detection information to external via a magnetic channel; receiving a conflict detection result of external feedback via a radio frequency channel; processing anti-conflict according to the conflict detection result. During radio frequency communication from establishment of radio frequency connection to accomplishment of radio frequency transaction, the conflict detection information is sent to determine whether the communication conflict occurs currently, and the communication conflict can be detected and processed in time when the communication conflict is produced, thus the communication conflict is effectively prevented and user experience is improved.

Description

 Method, device and system for preventing communication conflict Technical field

The present invention relates to the field of wireless communications, and in particular, to a method, apparatus, and system for preventing communication conflicts.

Background technique

With the popularity of mobile terminals, the application requirements for mobile payment using mobile terminals are very urgent, and there has been a mobile terminal SIM (Subscriber Identity). Module), SD (Secure Digital Memory) In the Card) card, Micro-SD card or mobile terminal board, the RF function is added to make the mobile terminal become a super intelligent terminal that can be recharged, consumed, traded, and authenticated. In this scheme, the radio frequency adopts UHF (Ultra High Frequency (UHF) technology enables the RF module to be transmitted after being embedded in the mobile terminal, thereby realizing the function of stable data transmission without changing the existing structure of the mobile terminal.

When the plurality of mobile terminals are simultaneously located in a radio communication range of a communication terminal (such as a radio frequency card reader) or when the plurality of mobile terminals are simultaneously located in a radio communication range of the plurality of communication terminals, the mobile terminal and the communication terminal There will inevitably be a problem of communication conflicts, which will affect the user experience.

technical problem

The technical problem to be solved by the present invention is to provide a method, device and system for preventing communication conflicts, preventing communication conflicts and improving user experience.

Technical solution

In order to solve the above technical problems, the present invention provides the following technical solutions:

A method for preventing communication conflicts, comprising: The conflict detection information is sent out through the magnetic channel; the conflict detection result of the external feedback is received through the radio frequency channel, and the anti-collision processing is performed according to the conflict detection result.

In an embodiment of the present invention, the conflict detection information is sent out through the magnetic channel, specifically: a primary radio frequency device that has established a radio frequency communication connection with the radio frequency device, and the conflict detection information is sent out through the magnetic channel, the conflict detection information. Carrying local information of the slave radio frequency device.

In an embodiment of the invention, the conflict detection result of the external feedback is received through the radio frequency channel, The anti-collision processing is performed according to the conflict detection result. The main radio device determines whether an external feedback conflict response message is received, and if the conflict response message is received, disconnects the radio frequency connection.

In an embodiment of the invention, the conflict detection information is sent out through the magnetic channel. The first primary radio device sends the low frequency card search information through the magnetic channel.

In an embodiment of the invention, the conflict detection result of the external feedback is received through the radio frequency channel, The anti-collision processing is performed according to the conflict detection result: the slave radio frequency device that receives the low frequency card search information feeds back a conflict response message to the second master radio frequency device that has established the radio frequency communication connection through the radio frequency channel; The two primary radio devices receive the conflict response message through the radio frequency channel, and disconnect the radio frequency connection with the slave radio frequency device.

In an embodiment of the invention, the conflict detection result of the external feedback is received through the radio frequency channel, The anti-collision processing is performed according to the conflict detection result, where the first primary radio frequency device receives the low frequency fed back by the second slave radio frequency device through the radio frequency channel in a state that the first primary radio frequency device has established a communication connection with the first slave radio frequency device. When the response message of the card search information is received, the radio frequency connection with the first slave radio frequency device is disconnected.

A method for preventing a communication conflict includes: receiving, by using a magnetic channel, externally sent conflict detection information; generating a conflict detection result according to the conflict detection information, and transmitting, by using a radio frequency channel, the conflict detection result for implementing anti-collision processing .

In an embodiment of the invention, the conflict detection information carries local information of a slave radio frequency device that has established a radio frequency communication connection with the sender.

In an embodiment of the present invention, the method for generating the conflict detection result according to the conflict detection information, and the method for transmitting the conflict detection result for implementing the anti-collision processing by using the radio frequency channel is specifically: determining that the conflict detection information is carried Whether the local information of the slave radio frequency device is consistent with its own local information, if not, generates a conflict response message, and sends the conflict response message for implementing anti-collision processing to the outside through the radio frequency channel.

In an embodiment of the invention, the conflict detection information is low frequency card search information sent by the first primary radio device.

In an embodiment of the present invention, the method for generating the conflict detection result according to the conflict detection information, and the method for transmitting the conflict detection result for implementing the anti-collision processing by using the radio frequency channel is specifically: receiving the low frequency card search information The slave radio frequency device generates a conflict response message according to the low frequency card search information, and feeds back a conflict response message to the second master radio frequency device that has established the radio frequency communication connection through the radio frequency channel.

An apparatus for preventing a communication conflict includes: a first sending module, configured to send the conflict detection information by using a magnetic channel; and a first receiving module, configured to receive a conflict detection result of the external feedback through the radio frequency channel; the first processing module, And used for performing anti-collision processing according to the conflict detection result.

In an embodiment of the present invention, the first sending module includes a first sending unit, configured to send conflict detection information through the magnetic channel after the primary radio device establishes a radio frequency communication connection with the radio frequency device, where the conflict occurs. The local information of the slave radio frequency device is carried in the detection information.

In an embodiment of the present invention, the first receiving module includes a first receiving unit, configured to notify the first processing module to perform corresponding anti-collision processing after receiving the conflict response message of the external feedback; The processing module is used to disconnect the radio frequency.

In an embodiment of the invention, the first sending module is configured to send the low frequency card search information through the magnetic channel; the first receiving module includes a second determining module, configured to determine that the radio frequency connection has been established with the first slave radio frequency device. a response message of the low frequency card search information fed back by the second radio frequency device through the radio frequency channel; the first processing module includes a fourth processing unit, configured to receive the response message in the determining result The RF connection to the first slave RF device is disconnected.

An apparatus for preventing communication conflicts, comprising: a second receiving module, configured to receive externally sent conflict detection information by using a magnetic channel; and a second processing module, configured to generate a conflict detection result according to the conflict detection information; And for transmitting, by using the radio frequency channel, the conflict detection result for implementing anti-collision processing.

In an embodiment of the invention, the conflict detection information carries local information of a slave radio frequency device that has established a radio frequency communication connection with the sender; the second processing module includes a second processing unit, configured to determine the conflict. Whether the local information of the slave radio frequency device carried in the detection information is consistent with the local information of the radio device, and if not, generates a conflict response message; the second sending module is configured to send the conflict response for implementing anti-collision processing by using the radio channel. Message.

In an embodiment of the present invention, the second receiving module includes a first determining module, configured to determine whether the low frequency card search information of the magnetic channel is received in a state in which the radio frequency connection has been established; the second processing module includes a third processing unit, configured to generate a conflict response message when the determining result is that the magnetic channel low frequency card search information is received; the second sending module is configured to send the foregoing for implementing anti-collision processing by using a radio frequency channel Conflict response message.

Beneficial effect

The method, device and system for preventing communication conflicts of the present invention can detect whether a communication conflict currently exists by transmitting collision detection information during radio frequency communication after the establishment of the radio frequency connection to the completion of the radio frequency transaction, and can timely discover and perform the communication conflict. Processing, thereby effectively preventing communication conflicts and improving the user experience.

DRAWINGS

1 is a flow chart of a method for preventing communication conflicts in an embodiment of the present invention;

2 is a structural diagram of a radio frequency card reader and a radio frequency SIM card;

3 is a model diagram of conflicts of multiple radio frequency SIM cards in an embodiment of the present invention;

4 is a model diagram of a frequency band and address conflict situation of a radio frequency channel according to an embodiment of the present invention;

FIG. 5 is a model diagram of a frequency band and address conflict situation of a radio frequency channel according to an embodiment of the present invention; FIG.

6 is a model diagram of a frequency band and address conflict situation of a radio frequency channel according to an embodiment of the present invention;

FIG. 7 is a structural diagram of an apparatus for preventing communication conflicts according to an embodiment of the present invention; FIG.

FIG. 8 is another structural diagram of an apparatus for preventing communication conflicts according to an embodiment of the present invention; FIG.

FIG. 9 is another flowchart of a method for preventing communication conflicts according to an embodiment of the present invention; FIG.

FIG. 10 is still another flowchart of a method for preventing communication conflicts according to an embodiment of the present invention; FIG.

11 is a model diagram of a frequency band and address conflict situation of a radio frequency channel according to an embodiment of the present invention;

FIG. 12 is still another structural diagram of an apparatus for preventing communication conflicts according to an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiments of the invention

The principles and features of the present invention are described in the following with reference to the accompanying drawings and embodiments.

The present invention mainly includes the following four solutions: In the first solution, after the first primary radio frequency device has established a radio frequency connection with a slave radio frequency device (the first slave radio frequency device), the first main radio frequency device continuously sends out through the magnetic channel. Collision detection information, the conflict detection information carries local information of the first slave radio frequency device that has established a radio frequency connection with the first primary radio frequency device, and the other radio frequency device in the first main radio frequency device receives the local radio frequency device After the conflict detection information is determined, the local information of the radio frequency device carried in the conflict detection information is inconsistent with the information stored by the radio detection device, and the radio frequency channel (which can be calculated by the collision detection information) sends a collision to the first primary radio device. The detection result is that after the first primary radio frequency device receives the conflict detection result, disconnecting the radio frequency connection with the first slave radio frequency device;

In the second solution, after the first radio frequency device receives the conflict detection information sent by the other main radio equipment through the magnetic channel, if the local information of the slave radio frequency device carried in the conflict detection information and the information stored by itself are determined, Inconsistent, the conflict detection result may also be sent to the first primary radio frequency device by using a radio frequency channel (which is different from the normal radio frequency channel between the first primary radio frequency device and the first secondary radio frequency device), and the first primary radio frequency device receives After the conflict detection result, disconnecting the radio frequency connection with the first slave radio frequency device;

In a third solution, the first slave radio frequency device receives the low frequency card search information sent by the other main radio frequency device (the second main radio frequency device) through the magnetic channel in a state that the radio frequency device has established a radio frequency connection with the first main radio frequency device. The first slave radio frequency device sends a conflict detection result to the first master radio frequency device through the radio frequency channel, and after receiving the conflict detection result, the first master radio frequency device disconnects the radio frequency connection with the first slave radio frequency device.

In a fourth solution, the first primary radio frequency device receives the low frequency card search information sent from the radio frequency device in a state that the radio frequency connection has been established with the first slave radio frequency device (the low frequency card search information is the first main radio frequency information) The first primary radio device disconnects the radio frequency connection with the first slave radio device by receiving response information from the device prior to establishing a radio frequency connection with the first slave radio device.

The first scheme is shown in FIG. 1. FIG. 1 is a flowchart of a method for preventing communication conflicts according to an embodiment of the present invention. As shown in FIG. 1, in this embodiment, a method for preventing a communication conflict includes the following steps:

Step a11: The first primary radio frequency device that has established a radio frequency connection with the first slave radio frequency device sends the conflict detection information through the magnetic channel.

After the first primary radio device and the first slave radio device complete the access process, the first primary radio device immediately transmits the data information transmitted by the first slave radio device through the radio frequency channel through the low frequency magnetic channel (ie, the local information of the first slave radio device) Information) as collision detection data (i.e., collision detection information), the collision detection data is repeatedly transmitted until the current transaction is completed, and then continues to be accessed and traded with the currently connected first slave radio frequency device.

The first slave radio frequency device and the first master radio frequency device perform irreversible transformation by using the collision detection data, and generate the radio frequency frequency and address by using the transformation result and the same algorithm, and are used for the radio frequency frequency and address of the collision detection communication.

Step a12: Each slave radio frequency device (possibly including the first slave radio frequency device) in the magnetic signal radiation area of the first primary radio frequency device receives the collision detection information through the magnetic channel;

Step a13, in step a12, each of the slave radio frequency devices determines the conflict detection information, determines whether the local information of the slave radio frequency device carried in the conflict detection information is consistent with the information stored by itself, and generates a conflict detection result according to the determination result;

Step a14, in step a12, each of the slave radio frequency devices sends a collision detection result through the radio frequency channel;

In this step, the frequency and address of the radio frequency channel may be an irreversible transformation by the radio frequency device using the collision detection data, and the radio frequency frequency and address generated by the transformation result and the setting algorithm, that is, the above-mentioned communication for collision detection communication. RF frequency and address.

Certainly, in other embodiments of the present invention, the radio frequency frequency and address used for the collision detection communication may also be determined according to other manners, for example, the radio frequency frequency and address directly used for the collision detection communication, or other The algorithm generates RF frequency points and addresses for collision detection communication.

It should be noted that, in the present invention, the radio frequency frequency and address used for collision detection communication determined in any manner must be different from the first primary radio frequency device and the first secondary radio frequency device for normal communication. RF frequency and address. To ensure this, the radio frequency band for collision detection communication can be specified such that the radio frequency band used for collision detection communication is different from the radio frequency band used for normal communication.

In step a15, the first primary radio device receives each conflict detection result through the radio frequency channel;

In step a16, the first primary radio frequency device performs anti-collision processing according to the conflict detection result received in step a15.

Wherein, the primary radio frequency device has a magnetic transmitting device, and the secondary radio frequency device has a magnetic receiving device. For example, the primary radio device can be a radio frequency card reader and the slave radio frequency device can be a radio frequency SIM card. The structure of the RF card reader and the RF SIM card can be as shown in FIG. 2.

2 is a structural diagram of a radio frequency card reader and a radio frequency SIM card. As shown in FIG. 2, the radio frequency card reader 100 includes a microcontroller 103, a radio frequency transceiver module 101, a radio frequency antenna 102, and a magnetic signal generating device 104. The microcontroller 103 is equivalent to the first processing module, processes the information sent and received by the radio frequency transceiver module 101, generates magnetic channel data information, and performs anti-collision processing according to the conflict detection result received by the radio frequency transceiver module 101. The radio frequency transceiver module 101 is connected to the microcontroller 103 and the radio frequency antenna 102. The radio frequency antenna 102 is used for detecting and radiating radio frequency signals. The radio frequency transceiver module 101 and the radio frequency antenna 102 are equivalent to the first receiving module, and are used for transmitting and receiving radio frequency signals, such as The conflict detection result of the external feedback is received through the RF channel. The magnetic signal generating device 104 is connected to the microcontroller 103 and is equivalent to the first transmitting module for transmitting the conflict detection information generated by the microcontroller 103 through the magnetic channel.

The radio frequency SIM card 200 includes a radio frequency transceiver module 201, a radio frequency antenna 202, a microcontroller 203, a magnetic induction and information receiving module 204, and a SIM card module 205. The radio frequency antenna 202 is configured to detect and radiate radio frequency signals, and the radio frequency transceiver module 201 is respectively connected to the radio frequency antenna 202 and the micro controller 203, and is equivalent to the second sending module, and is configured to send out a conflict for implementing anti-collision processing through the radio frequency channel. Test results. The magnetic induction and information receiving module 204 is configured to sense the magnetic signal strength sent by the magnetic signal generating device 104, and receive the magnetic channel information to confirm whether the radio frequency SIM card 200 is within the short-range communication range of the radio frequency card reader 100, which is equivalent to The second receiving module is configured to receive the externally sent conflict detection information through the magnetic channel. The microcontroller 203 is configured to process the radio frequency information sent and received by the radio frequency transceiver module 201 and the magnetic channel information received by the magnetic induction and information receiving module 204, and is equivalent to the second processing module, and is configured to generate a conflict detection result according to the conflict detection information. The SIM card module 205 processes the SIM card application of the mobile terminal.

In the following we apply the method of preventing communication conflicts shown in Figure 1 to several specific conflict situations to further illustrate the principles of the present invention.

FIG. 3 is a model diagram of conflicts of multiple radio frequency SIM cards in an embodiment of the present invention. As shown in FIG. 3, both the radio frequency SIM card 302 and the radio frequency SIM card 303 are within the short-range communication range of the radio frequency card reader 301 (the inner area of the dotted line in FIG. 3 indicates the short-range communication range of the radio frequency card reader 301), both of which are The low frequency card seek command of the radio frequency card reader 301 can be received to establish a radio frequency connection with the radio frequency card reader 301, thereby forming a multi-card collision. At this time, since the plurality of radio frequency SIM cards are simultaneously located in the accessible range of the same radio frequency card reader 301, the radio frequency card reader 301 randomly accesses one of the radio frequency SIM cards for transaction, but the user cannot identify the transaction being processed. Is the radio frequency SIM card 302 or the radio frequency SIM card 303.

The collision situation shown in FIG. 3 can be avoided by using the method for preventing communication conflicts shown in FIG. 1. For the conflict situation shown in Figure 3, the process of preventing communication conflicts is as follows:

Step b11, assume that the radio frequency card reader 301 randomly accesses the radio frequency SIM card 302;

In step b12, after establishing a radio frequency connection with the radio frequency SIM card 302, the radio frequency card reader 301 immediately starts to send the conflict detection information through the low frequency magnetic channel, the conflict detection information carries the local information of the radio frequency SIM card 302, and then the radio frequency card reader 301 Continue to access and trade with the currently connected radio frequency SIM card 302;

The radio frequency SIM card 302 can transmit its local information to the radio frequency card reader 301 through the radio frequency channel during the connection and establishment of the connection with the radio frequency card reader 301.

Step b13, the radio frequency SIM card 302 and the radio frequency SIM card 303 in the conflict area of the radio frequency card reader 301 (ie, within the short-range communication range) receive the conflict detection information;

Step b14, the radio frequency SIM card 302 compares the received conflict detection information with the local information, and finds that the comparison result is consistent, the radio frequency SIM card 302 does not perform any processing, continues the transaction, and the radio frequency SIM card 303 compares and finds the received If the conflict detection information is inconsistent with the local information, the radio frequency SIM card 303 determines that the collision has occurred, and the radio frequency SIM card 303 will continue to send the 20 ms conflict response message on the conflicting radio frequency and address.

In this embodiment, when the radio frequency SIM card that receives the collision detection information is compared, When it is determined that the local information of the self is consistent with the local information in the conflict detection information, the method of not performing any processing is adopted. In this case, the conflict detection result is that the primary radio frequency device (such as a radio frequency card reader) is not received on the radio frequency channel. Conflict response message. In other embodiments of the invention, when the radio frequency SIM card is compared, When it is determined that the local information of itself is consistent with the local information in the conflict detection information, The radio frequency SIM card can also send a notification or message to the primary radio device (such as a radio frequency card reader) through the radio frequency channel to inform the main radio device that the radio frequency SIM card does not conflict. That is to say, when the conflict detection result is not conflict, the radio frequency SIM card can detect the conflict without conflict by sending no response message or by sending a notification or message carrying the non-conflict information. The result informs the primary radio device (eg, a radio frequency reader).

In step b15, when the radio frequency card reader 301 receives the conflict response message, it determines that a collision has occurred in the conflict area, and disconnects the currently communicating radio frequency SIM card 302.

On the other hand, if the radio frequency card reader 301 randomly accesses the radio frequency SIM card 303, the radio frequency SIM card 303 will also perform the collision detection processing as above.

FIG. 4 is a model diagram of a frequency band and address conflict situation of a radio frequency channel according to an embodiment of the present invention. As shown in FIG. 4, the radio frequency SIM card 402 is not connected to the radio frequency card reader 401 in the accessible range, but is connected to the radio frequency card reader 403 due to the radio frequency channel frequency point and address conflict. The RF card reader 401 is connected to the RF SIM card 404. In Fig. 4, the inner area of the broken line indicates the short-range communication range, that is, the access range. In this paper, the accessible range refers to the short-range communication range, which will not be described one by one below.

The collision situation shown in FIG. 4 can be avoided by using the method for preventing communication conflicts shown in FIG. 1. For the conflict situation shown in Figure 4, the process of preventing communication conflicts is as follows:

In step b21, the radio frequency card reader 401 and the radio frequency card reader 403 start to send the conflict detection information through the low frequency magnetic channel after the radio frequency connection is established respectively. The conflict detection information sent by the radio frequency card reader 401 carries the radio frequency SIM card 404. The local information of the radio frequency SIM card 402 is carried in the conflict detection information sent by the radio frequency card reader 403;

In step b22, the radio frequency SIM card 402 receives the conflict detection information of the radio frequency card reader 401, and the radio frequency SIM card 404 receives the conflict detection information of the radio frequency card reader 403, and compares it with its own local information, and the radio frequency SIM card 402 finds If the received conflict detection information is inconsistent with its local information, it is judged that a card search address conflict has occurred. After the current radio frequency transmission and reception is completed, the conflict response message is sent on a specific radio frequency frequency and address for 20 ms, and the current bit is set. The abnormal state, similarly, the radio frequency SIM card 404 also finds that the received conflict detection information is inconsistent with its own local information, and then determines that a card search address conflict has occurred, and after completing the current radio frequency transmission and reception, it continues for 20 ms at a specific radio frequency frequency and address. Send a conflict response message and set the current bit abnormal state;

In this paper, the specific RF frequency and address refer to the RF frequency and address generated by the transformation result and the setting algorithm by irreversible transformation of the collision detection information, that is, the aforementioned RF frequency point for collision detection communication. The address is not explained one by one below. Certainly, the radio frequency frequency and address used for the collision detection communication may also be determined according to other manners, for example, the radio frequency frequency and address for the collision detection communication are directly agreed, or the other algorithms agreed by the two parties are used to generate the communication for the collision detection communication. RF frequency and address.

In step b23, the radio frequency card reader 401 receives the conflict response message from the radio frequency SIM card 404 through the radio frequency channel, and the radio frequency card reader 403 receives the conflict response message from the radio frequency SIM card 402 through the radio frequency channel, and the radio frequency card reader 401 and The radio frequency card reader 403 directly sends a close message to end the current radio frequency connection when transmitting the communication next time.

FIG. 5 is a model diagram of a frequency band and address conflict situation of a radio frequency channel according to an embodiment of the present invention. As shown in FIG. 5, due to the occurrence of radio frequency channel frequency and address conflict, the radio frequency SIM card 502 is not connected to the radio frequency card reader 501 in the accessible range, but is connected to the radio frequency card reader outside the access range. 503 establishes a connection. In Fig. 5, the inner area of the broken line indicates the short-range communication range, that is, the access range.

The collision situation shown in FIG. 5 can be avoided by using the method for preventing communication conflicts shown in FIG. 1. For the conflict situation shown in Figure 5, the process of preventing communication conflicts is as follows:

In step b31, after the radio frequency card reader 503 establishes a radio frequency connection with the radio frequency SIM card 502, the radio frequency SIM card 502 transmits the conflict detection information, and the conflict detection information carries the local information of the radio frequency SIM card 502.

Step b32, after receiving the conflict detection information, the radio frequency SIM card 504 in the reachable range of the radio frequency card reader 503 determines that the collision is caused by itself, and continuously transmits the conflict response message of 20 ms directly on the specific radio frequency frequency and address;

In step b33, the radio frequency card reader 503 receives the conflict response message from the radio frequency SIM card 504 through the radio frequency channel, and disconnects the radio frequency connection with the radio frequency SIM card 502 in the next transmission state.

FIG. 6 is a model diagram of a frequency band and address conflict situation of a radio frequency channel according to an embodiment of the present invention. As shown in FIG. 6, the radio frequency SIM card 702 does not establish a radio frequency connection with the radio frequency card reader 701 in the accessible range, but the radio frequency reading card is outside the reachable range. The 704 establishes a radio frequency connection, and the radio frequency card reader 701 establishes a connection with the radio frequency SIM card 703 within the accessible range.

The collision situation shown in FIG. 5 can be avoided by using the method for preventing communication conflicts shown in FIG. 1. For the conflict situation shown in Figure 5, the process of preventing communication conflicts is as follows:

In step b41, the radio frequency card reader 701 and the radio frequency card reader 704 respectively transmit the collision detection information through the low frequency magnetic channel after the radio frequency connection is established, and the conflict detection information sent by the radio frequency card reader 701 carries the local information of the radio frequency SIM card 703. The conflict detection information sent by the radio frequency card reader 704 carries the local information of the radio frequency SIM card 702;

Step b42, the radio frequency SIM card 702 and the radio frequency SIM card 703 receive the conflict detection information from the radio frequency card reader 701 through the magnetic channel, and the radio frequency SIM card 702 compares the received conflict detection information with its local information, and finds that the inconsistency is inconsistent. Then, the current abnormal state is set, and a 20ms conflict response message is sent on a specific radio frequency frequency and address; the radio frequency SIM card 703 compares the received conflict detection information with the local information line, and finds that the comparison result is consistent, then the radio frequency SIM card 703 does not perform any processing and continues the transaction; since there is no radio frequency SIM card in the accessible range of the radio frequency card reader 704, all radio frequency SIM cards will not receive the conflict detection information from the radio frequency card reader 704;

In step b43, the radio frequency card reader 704 receives the conflict response message of the radio frequency SIM card 702 through the radio frequency channel, and disconnects the radio frequency connection with the radio frequency SIM card 702 in the next transmission state.

The method for preventing communication conflicts in the embodiment of the present invention determines whether a communication conflict currently occurs by continuously transmitting collision detection information during radio frequency communication after the establishment of the radio frequency connection to the completion of the radio frequency transaction, and can timely discover and process the communication conflict. Thereby effectively preventing communication conflicts and improving the user experience.

The present invention also proposes means for preventing communication collisions. The apparatus for preventing communication collisions shown in FIG. 7 and FIG. 8 below is used to implement the method flow for preventing communication conflicts shown in FIG. 1.

FIG. 7 is a structural diagram of an apparatus for preventing communication conflicts according to an embodiment of the present invention. As shown in FIG. 7, in this embodiment, the apparatus 810 for preventing communication conflict includes a first sending module 811, a first receiving module 812, and a first processing module 813. The first sending module 811, the first receiving module 812, and the first processing module 813 are sequentially connected. The first sending module 811 is configured to send conflict detection information through the magnetic channel. The first receiving module 812 is configured to receive a collision detection result by using a radio frequency channel. The first processing module 813 is configured to perform anti-collision processing according to the conflict detection result received by the first receiving module 812.

The first sending module 811 may further include a first sending unit. The first sending unit is configured to send the conflict detection information by using the magnetic channel after the primary radio frequency device establishes a radio frequency communication connection with the first slave radio frequency device, where the conflict detection information carries the local information of the first slave radio frequency device. The first slave radio frequency device may be a slave radio frequency device within a short range communication range of the main radio frequency device, or may be a slave radio frequency device outside the short range communication range of the main radio frequency device.

The first receiving module 812 may further include a first receiving unit. The first receiving unit is configured to receive the conflict response message by using the radio frequency channel, where the conflict detection result is that the conflict response message is received or the conflict response message is not received, that is, whether the conflict response message is received. If the first receiving unit receives the conflict response message, the first processing module 813 disconnects the current radio frequency connection.

In the device for preventing communication conflicts in the embodiment of the present invention, the primary radio frequency device continuously detects the current communication conflict by continuously sending the collision detection information during the radio frequency communication after the radio frequency connection is established to the radio frequency transaction completion, and can timely discover and generate the communication conflict. Processing, thereby effectively preventing communication conflicts and improving the user experience.

FIG. 8 is another structural diagram of an apparatus for preventing communication conflicts according to an embodiment of the present invention. As shown in FIG. 8, in the embodiment, the apparatus 820 for preventing communication conflict includes a second receiving module 821, a second processing module 822, and a second sending module 823. The second receiving module 821, the second processing module 822, and the second sending module 823 are sequentially connected. The second receiving module 821 is configured to receive conflict detection information through the magnetic channel. The second processing module 822 is configured to determine the conflict detection information received by the second receiving module 821, and generate a conflict detection result according to the determination result. The second sending module 823 is configured to send the conflict detection result generated by the second processing module 822 through the radio frequency channel.

The conflict detection information received by the second receiving module 821 may carry local information of the first slave radio frequency device. The second processing module 822 can further include a second processing unit. The second processing unit is configured to determine whether the local information of the first slave radio frequency device carried in the conflict detection information is consistent with its local information, and if not, generate a conflict response message.

The second sending module 823 may further include a second sending unit. The second sending unit is configured to send a conflict detection result to the primary radio frequency device by using the radio frequency channel, so that the primary radio frequency device performs anti-collision processing according to the conflict detection result.

The slave radio frequency device in which the device for preventing communication conflicts shown in FIG. 8 may be a slave radio frequency device within a short-range communication range of the main radio frequency device, or may be a slave radio frequency device outside the short-range communication range of the main radio frequency device. .

In a preferred embodiment of the present invention, the device for preventing communication collision shown in FIG. 7 is placed in the primary radio device, and the device for preventing communication collision shown in FIG. 8 is placed in the slave radio device.

Herein, the primary radio device may be a radio frequency card reader, and the slave radio frequency device may be a radio frequency SIM card.

The device for preventing communication conflicts in the embodiment of the present invention continuously compares the conflict detection information during the radio frequency communication after the radio frequency connection is established to the completion of the radio frequency transaction to determine whether a communication conflict currently occurs, and can generate a communication conflict when a communication conflict occurs. The main RF device is discovered and notified in time for processing, thereby effectively preventing communication conflicts and improving the user experience.

FIG. 9 is another flow chart of a method for preventing communication conflicts according to an embodiment of the present invention. As shown in FIG. 9, in this embodiment, a method for preventing a communication conflict includes the following steps:

Step a21, it is determined from the radio frequency device whether the low frequency card search information of the magnetic channel is received in the state that the radio frequency connection has been established, if yes, step a22 is performed, otherwise step a23 is performed;

Step a22, Sending, by the radio frequency device, a conflict response message to the primary radio frequency device that has established a radio frequency connection with the radio frequency channel, so that the main radio frequency device disconnects the radio frequency connection according to the conflict response message;

In step a23, the radio frequency device is not processed to maintain the current radio frequency connection.

FIG. 10 is still another flowchart of a method for preventing communication conflicts according to an embodiment of the present invention. As shown in FIG. 10, in this embodiment, the process of the method for preventing communication conflict includes the following steps:

In step a31, the primary radio frequency device determines whether the low frequency card search information of the radio frequency channel is received in the state that the radio frequency connection has been established (the low frequency card search information is sent out before the primary radio frequency device establishes a radio frequency connection with a slave radio frequency device). Response information, if yes, proceed to step a32, otherwise perform step a33;

In step a32, the primary radio device disconnects the current radio frequency connection;

In step a33, the primary radio device maintains the current radio frequency connection.

The flow of the method of preventing communication collisions shown in FIG. 9 is applied to a slave radio frequency device, such as a radio frequency SIM card. The flow of the method of preventing communication collisions shown in FIG. 10 is applied to a primary radio frequency device, such as a radio frequency card reader.

Next, we apply the method of preventing communication conflicts shown in FIG. 9 and FIG. 10 to a specific conflict situation to further explain the principle.

FIG. 11 is a model diagram of a frequency band and address conflict situation of a radio frequency channel according to an embodiment of the present invention. As shown in FIG. 11, the radio frequency SIM card 602 does not establish a radio frequency connection with the radio frequency card reader 601 in the accessible range, but establishes a radio frequency connection with the radio frequency card reader 603.

The collision situation shown in Fig. 11 can be avoided by using the method of preventing communication collisions shown in Figs. 9 and 10. For the conflict situation shown in Figure 11, the process of preventing communication conflicts is as follows:

Step b51, after the radio frequency card reader 603 establishes a radio frequency connection with the radio frequency SIM card 602, the radio frequency card reader 601 continues to transmit low frequency card search information in the magnetic channel;

In step b52, the radio frequency SIM card 602 receives the low frequency card search information sent by the radio frequency card reader 601 through the magnetic channel when the radio frequency connection state is in the radio frequency connection state, thereby determining that a conflict has occurred, and the radio frequency SIM card 602 marks the current abnormal state and passes the Sending a conflict response message to the RF card reader 603 by using an application message or a connection control message;

In step b53, after receiving the conflict response message from the radio frequency SIM card 602, the radio frequency card reader 603 disconnects the radio frequency SIM card 602 in the next transmission state.

In the method for preventing communication conflicts in the embodiment of the present invention, the radio frequency device continuously determines whether the low frequency card search information of the magnetic channel is received under the state that the radio frequency connection has been established, after the radio frequency connection is established and the radio frequency communication is completed. In order to detect whether a communication conflict occurs, the main radio device can be detected and notified in time when a communication conflict occurs, thereby effectively preventing communication conflicts and improving the user experience.

The present invention further proposes an apparatus for preventing communication collisions. FIG. 12 is still another structural diagram of an apparatus for preventing communication conflicts according to an embodiment of the present invention. The apparatus for preventing communication collision shown in FIG. 12 is used to implement the method flow for preventing communication collision shown in FIG. As shown in FIG. 12, the apparatus 920 for preventing a communication conflict includes a second receiving module 921, a second processing module 922, and a second sending module 923. The second receiving module 921 includes a first determining module 921a for determining that the radio frequency has been established. Whether the low frequency card search information of the magnetic channel is received in the connected state; the second processing module 922 includes a third processing unit 922a, configured to generate a conflict response message when the determination result is that the magnetic channel low frequency card search information is received; The second sending module 923 is configured to send, by using the radio frequency channel, the conflict response message for implementing anti-collision processing, so that the primary radio device disconnects the radio frequency according to the conflict response message.

The device for preventing communication conflicts in the embodiment of the present invention continuously determines whether the low frequency card search information of the magnetic channel is received under the state that the radio frequency connection has been established during the radio frequency communication after the radio frequency connection is established and after the radio frequency transaction is completed. In order to detect whether a communication conflict occurs, the main radio device can be detected and notified in time when a communication conflict occurs, thereby effectively preventing communication conflicts and improving the user experience.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Industrial applicability

Sequence table free content

Claims (18)

1.  A method for preventing communication conflicts, comprising:

   Sending collision detection information outward through the magnetic channel;

   The conflict detection result of the external feedback is received through the radio frequency channel, and the anti-collision processing is performed according to the conflict detection result.
2. A method of preventing communication conflicts according to claim 1, wherein:

   Sending conflict detection information through the magnetic channel is specifically as follows:

   And the primary radio frequency device that has established a radio frequency communication connection with the radio frequency device, and sends the conflict detection information to the outside through the magnetic channel, where the conflict detection information carries the local information of the slave radio frequency device.
3.  A method for preventing communication conflicts according to claim 1 or 2, characterized in that:

    The conflict detection result of the external feedback is received through the radio channel, and the anti-collision processing is performed according to the conflict detection result:

   The primary radio frequency device determines whether an external feedback conflict response message is received, and if the conflict response message is received, disconnects the radio frequency connection.
4. A method of preventing communication conflicts according to claim 1, wherein:

   Sending conflict detection information through the magnetic channel is specifically as follows:

   The first primary radio device transmits low frequency card search information through the magnetic channel.
5.  A method of preventing communication conflicts according to claim 4, wherein:

   The conflict detection result of the external feedback is received through the radio channel, and the anti-collision processing is performed according to the conflict detection result:

   Receiving the conflict response message from the radio frequency device that receives the low frequency card search information to the second primary radio frequency device that has established the radio frequency communication connection through the radio frequency channel;

   The second primary radio frequency device receives the conflict response message through a radio frequency channel, and disconnects a radio frequency connection with the slave radio frequency device.
6.  A method of preventing communication conflicts according to claim 4, wherein:

   The conflict detection result of the external feedback is received through the radio channel, and the anti-collision processing is performed according to the conflict detection result:

   Disconnecting and disconnecting the response message of the low frequency card search information fed back by the second slave radio frequency device through the radio frequency channel in a state that the first primary radio frequency device has established a communication connection with the first slave radio frequency device RF connection from the RF unit.
7.  A method for preventing communication conflicts, comprising:

   Receiving externally transmitted conflict detection information through a magnetic channel;

   And generating a conflict detection result according to the conflict detection information, and sending the conflict detection result for implementing anti-collision processing to the outside through the radio frequency channel.
8.  A method of preventing communication conflicts according to claim 7, wherein:

    The conflict detection information carries local information of a slave radio frequency device that has established a radio frequency communication connection with the sender.
9. A method of preventing communication conflicts according to claim 8, wherein:

   The conflict detection result is generated according to the conflict detection information, and the conflict detection result that is sent out through the radio frequency channel to implement anti-collision processing is specifically:

   And determining whether the local information of the slave radio frequency device carried in the conflict detection information is consistent with the local information of the radio frequency device, and if not, generates a conflict response message, and sends the conflict response message for implementing anti-collision processing to the outside through the radio frequency channel.
10. A method of preventing communication conflicts according to claim 7, wherein:

    The conflict detection information is low frequency card search information sent by the first primary radio device.
11. The method for preventing a communication conflict according to claim 10, wherein the conflict detection result is generated according to the conflict detection information, and the conflict detection result sent by the radio frequency channel to implement anti-collision processing is specifically:

    The slave radio frequency device that receives the low frequency card search information generates a conflict response message according to the low frequency card search information, and feeds back a conflict response message to the second master radio frequency device that has established the radio frequency communication connection through the radio frequency channel.
12.  A device for preventing communication conflicts, comprising:

    a first sending module, configured to send conflict detection information outward through the magnetic channel;

    a first receiving module, configured to receive, by using a radio frequency channel, a conflict detection result of the external feedback;

    The first processing module is configured to perform anti-collision processing according to the conflict detection result.
13.  The apparatus for preventing communication conflicts according to claim 12, characterized in that:

    The first sending module includes a first sending unit, configured to send the conflict detection information through the magnetic channel after the primary radio frequency device establishes a radio frequency communication connection with the slave radio frequency device, where the conflict detection information carries the slave radio frequency Local information of the device.
14.  The apparatus for preventing communication conflicts according to claim 12, characterized in that:

    The first receiving module includes a first receiving unit, configured to notify the first processing module to perform corresponding anti-collision processing after receiving the conflict response message of the external feedback; the first processing module is configured to disconnect the radio frequency connection .
15.  The apparatus for preventing communication conflicts according to claim 12, characterized in that:

    a first sending module, configured to send low frequency card search information through the magnetic channel;

    The first receiving module includes a second determining module, configured to determine whether a response message of the low frequency card search information fed back by the second slave radio frequency device through the radio frequency channel is received in a state that the radio frequency connection has been established with the first slave radio frequency device;

    The first processing module includes a fourth processing unit, configured to disconnect the radio frequency connection with the first slave radio frequency device when the determining result is that the response message is received.
16. A device for preventing communication conflicts, comprising:

    a second receiving module, configured to receive externally sent conflict detection information by using a magnetic channel;

    a second processing module, configured to generate a conflict detection result according to the conflict detection information;

    The second sending module is configured to send the conflict detection result for implementing anti-collision processing outward through the radio frequency channel.
17. The device for preventing communication conflicts according to claim 16, wherein the conflict detection information carries local information of a slave radio frequency device that has established a radio frequency communication connection with the sender; the second processing module includes a second The processing unit is configured to determine whether the local information of the radio frequency device carried in the conflict detection information is consistent with the local information of the radio frequency device, and if not, generates a conflict response message; the second sending module is configured to send the external information through the radio frequency channel for sending The conflict response message that implements anti-collision processing.
18. The device for preventing communication conflicts according to claim 16, wherein the second receiving module comprises a first determining module, configured to determine whether the low frequency card search information of the magnetic channel is received in a state in which the radio frequency connection has been established. The second processing module includes a third processing unit, configured to generate a conflict response message when the determining result is that the magnetic channel low frequency card search information is received; and the second sending module is configured to send the data through the radio frequency channel The conflict response message for implementing anti-collision processing.

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