CN117669608A - Label management method and device and related equipment - Google Patents
Label management method and device and related equipment Download PDFInfo
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- CN117669608A CN117669608A CN202211055250.6A CN202211055250A CN117669608A CN 117669608 A CN117669608 A CN 117669608A CN 202211055250 A CN202211055250 A CN 202211055250A CN 117669608 A CN117669608 A CN 117669608A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application provides a tag management method, a tag management device and related equipment, wherein when the method is applied to a radio frequency energy supply unit, the method comprises the following steps: scanning at least two energy supply sectors corresponding to the radio frequency energy supply units in sequence, and obtaining a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, wherein the scanning result comprises the number of labels corresponding to the energy supply sectors; determining label information according to a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, wherein the label information comprises the total number of area labels corresponding to the at least two energy supply sectors; and sending the label information to a reader-writer. The management of the reader-writer on a plurality of labels in the coverage area of the reader-writer is facilitated by counting the label number of each energy supply sector in at least two energy supply sectors corresponding to the radio frequency energy supply unit and sending the total number of the area labels corresponding to the at least two energy supply sectors to the reader-writer, so that the label management effect of the reader-writer is improved.
Description
Technical Field
The embodiment of the application relates to the technical field of wireless communication, in particular to a tag management method, a tag management device and related equipment.
Background
In radio frequency identification technology (Radio Frequency Identification, RFID), the reader-writer sends an unmodulated sine wave to the RFID tag, so that the tag collects energy from the unmodulated sine wave and supplies power to the tag's own circuit according to the collected energy, and at the same time, the tag also back-scatters the unmodulated sine wave by changing a load resistance or capacitance, etc. to perform information feedback to the reader-writer.
In the related art, an energy supply unit is to be added between the reader-writer and the tag to prolong the energy supply distance of the reader-writer to the tag, but because the added energy supply unit adopts an omni-directional antenna by default, when the omni-directional antenna is applied, an unadjusted sine wave is sent to all the tags in the coverage range of the energy supply unit, therefore, when the number of the tags in the coverage range of the energy supply unit is excessive, the unadjusted sine wave backscattered by the plurality of tags is easy to collide, the energy supply effect of the energy supply unit to the plurality of tags in the coverage range of the energy supply unit is reduced, and the read-write operation of the reader-writer to the tags is interfered. That is, the tag management effect of the reader/writer designed by the related art is poor.
Disclosure of Invention
The embodiment of the application provides a tag management method, a tag management device and related equipment, which are used for solving the problem of poor tag management effect of a reader-writer designed by related technologies.
To solve the above problems, the present application is realized as follows:
in a first aspect, an embodiment of the present application provides a tag management method, which is applied to a radio frequency energy supply unit, where the method includes:
scanning at least two energy supply sectors corresponding to the radio frequency energy supply units in sequence, and obtaining a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, wherein the scanning result comprises the number of labels corresponding to the energy supply sectors;
determining label information according to a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, wherein the label information comprises the total number of area labels corresponding to the at least two energy supply sectors;
and sending the label information to a reader-writer.
Optionally, the scanning the at least two energy supply sectors corresponding to the radio frequency energy supply unit in turn, and obtaining a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, includes:
transmitting a first signal for sensing a tag to a target sector, wherein the target sector is any one of the at least two energy-supplying sectors;
receiving a second signal fed back by the tag according to the first signal when the target sector comprises the tag;
And generating a scanning result corresponding to the target sector according to the second signal.
Optionally, the tag information further includes distance information between the tag and a radio frequency energy supply unit; the distance information is determined according to the transmission time of the first signal, the receiving time of the second signal, the transmission rate of the first signal and the transmission rate of the second signal.
Optionally, the sending the tag information to the reader/writer includes:
under the condition that the numerical value of a first quantity parameter and the numerical value of a second quantity parameter are different, the numerical value of the first quantity parameter is adjusted to be consistent with the numerical value of the second quantity parameter, wherein the first quantity parameter is used for indicating the number of labels stored in the radio frequency energy supply unit and corresponding to a target sector, the second quantity parameter is used for indicating the number of labels displayed by a scanning result corresponding to the target sector, and the target sector is any energy supply sector of the at least two energy supply sectors;
and sending the adjusted first quantity parameters to a reader-writer.
Optionally, the method further comprises:
receiving a control signal sent by the reader-writer;
responding to the control signal;
Wherein the control signal comprises at least one of:
a first sub-signal for indicating the radio frequency energy supply unit to be turned on or off;
a second sub-signal for indicating a duty cycle of an antenna signal of the radio frequency energy supply unit;
a third sub-signal for indicating the antenna orientation of the radio frequency energy supply unit;
a fourth sub-signal for indicating an antenna transmit power of the radio frequency powered unit;
a fifth sub-signal for indicating an antenna scan direction of the radio frequency powered unit;
a sixth sub-signal for indicating an antenna scan rate of the radio frequency powered unit.
In a second aspect, an embodiment of the present application further provides a tag management method, which is applied to a reader/writer, where the method includes:
and receiving label information sent by a radio frequency energy supply unit, wherein the label information is determined according to a scanning result corresponding to each energy supply sector in at least two energy supply sectors by scanning at least two energy supply sectors corresponding to the radio frequency energy supply unit in sequence, and the label information comprises the total number of area labels corresponding to the at least two energy supply sectors.
Optionally, after receiving the tag information sent by the radio frequency energy supply unit, the method further includes:
Summing the total number of the area tags corresponding to each radio frequency energy supply unit in at least one radio frequency energy supply unit associated with the reader-writer to obtain the total number of the read-write tags;
and determining anti-collision parameters according to the total number of the read-write tags.
Optionally, the anti-collision parameter meets a preset condition;
the preset conditions include: the Q power of 2 is larger than the total number of the read-write labels, the Q-1 power of 2 is smaller than or equal to the total number of the read-write labels, and Q is the numerical value of the anti-collision parameter.
Optionally, the method further comprises:
transmitting a control signal to the radio frequency energy supply unit so that the radio frequency energy supply unit responds to the control signal;
wherein the control signal comprises at least one of:
a first sub-signal for indicating the radio frequency energy supply unit to be turned on or off;
a second sub-signal for indicating a duty cycle of an antenna signal of the radio frequency energy supply unit;
a third sub-signal for indicating the antenna orientation of the radio frequency energy supply unit;
a fourth sub-signal for indicating an antenna transmit power of the radio frequency powered unit;
a fifth sub-signal for indicating an antenna scan direction of the radio frequency powered unit;
A sixth sub-signal for indicating an antenna scan rate of the radio frequency powered unit.
In a third aspect, an embodiment of the present application further provides a tag management apparatus, where the apparatus includes:
the scanning module is used for scanning at least two energy supply sectors corresponding to the radio frequency energy supply units in sequence and obtaining a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, wherein the scanning result comprises the number of labels corresponding to the energy supply sectors;
the information determining module is used for determining label information according to the scanning result corresponding to each energy supply sector in the at least two energy supply sectors, wherein the label information comprises the total number of area labels corresponding to the at least two energy supply sectors;
and the first transmission module is used for sending the tag information to the reader-writer.
In a fourth aspect, an embodiment of the present application further provides a tag management apparatus, where the apparatus includes:
the second transmission module is used for receiving the tag information sent by the radio frequency energy supply unit, wherein the tag information is obtained by sequentially scanning at least two energy supply sectors corresponding to the radio frequency energy supply unit by the radio frequency energy supply unit, and determining according to a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, and the tag information comprises the total number of area tags corresponding to the at least two energy supply sectors.
In a fifth aspect, embodiments of the present application further provide a communication device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; the processor is configured to read a program in the memory to implement the steps in the method according to the first aspect, or to implement the steps in the method according to the second aspect.
In a sixth aspect, embodiments of the present application further provide a readable storage medium storing a program, where the program when executed by a processor implements the steps of the method according to the first aspect, or implements the steps of the method according to the second aspect.
In this embodiment of the present application, the radio frequency energy supply unit reduces the number of tags supplied by the radio frequency energy supply unit in a single energy supply process by sequentially scanning at least two energy supply sectors corresponding to the radio frequency energy supply unit, so as to reduce the probability of collision of a plurality of feedback signals corresponding to a plurality of tags respectively, improve the energy supply effect of the radio frequency energy supply unit, and improve the tag management effect of the reader-writer, in this case, the management of the plurality of tags in the coverage area of the reader-writer is facilitated by further counting the number of tags in each energy supply sector in at least two energy supply sectors corresponding to the radio frequency energy supply unit and sending the total number of area tags corresponding to at least two energy supply sectors to the reader-writer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a radio frequency energy supply unit according to an embodiment of the present application;
fig. 2 is a schematic diagram of interaction between a reader and a tag according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an antenna according to an embodiment of the present application;
fig. 4 is a schematic flow chart of a tag management method according to an embodiment of the present application;
FIG. 5 is a flowchart of another label management method according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a tag management apparatus according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of another label management apparatus according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms "first," "second," and the like in embodiments of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in this application means at least one of the connected objects, such as a and/or B and/or C, is meant to encompass the 7 cases of a alone, B alone, C alone, and both a and B, both B and C, both a and C, and both A, B and C.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a radio frequency power supply unit (Radio Power Supply Unit, RPSU) provided in an embodiment of the present application, as shown in fig. 1, the radio frequency power supply unit includes: a micro-processing unit (Micro Control Unit, MCU), a Storage component (Storage), a communication management system service module (ComM), a signal transmission component (Tx), a signal reception component (Rx), an antenna pointing mechanism (Antenna Pointing Mechanism, APM), and a rotation component.
The storage component, the communication management system service module, the signal sending component and the signal receiving component are all electrically connected with the micro-processing unit, the signal sending component and the signal receiving component are also electrically connected with the antenna pointing mechanism, the communication management system service module is in communication connection with the reader-writer, and the rotating end of the rotating component is fixedly connected with the antenna pointing mechanism.
Through the arrangement, the radio frequency energy supply unit not only has the function of supplying energy to the tags, but also has the data processing function of counting the number of the tags in the corresponding area, and also has the function of communicating with the reader-writer.
As shown in fig. 2, when the radio frequency energy supply unit is applied, the rotating component drives the antenna pointing mechanism to rotate, so as to scan one of at least two energy supply sectors corresponding to the radio frequency energy supply unit, in the scanning process, the radio frequency energy supply unit can send an unmodulated sine wave to the energy supply sector through the signal sending component, so as to supply energy to the tag existing in the energy supply sector under the condition that the tag exists in the energy supply sector, meanwhile, the signal receiving component can be used for receiving the unmodulated sine wave backscattered by the tag, and after the feedback signal of the tag in the energy supply area is processed by the micro processing unit, the radio frequency energy supply unit can sense the number of the tag in the energy supply sector, and store the sensed number of the tag in the energy supply sector in the storage component.
After one scanning period of the radio frequency energy supply unit is finished, the radio frequency energy supply unit can sense the number of labels corresponding to each energy supply sector in at least two corresponding sectors, and when the reader-writer needs (for example, when the radio frequency energy supply unit receives a label number acquisition instruction sent by the reader-writer or when the radio frequency energy supply unit triggers a preset label number feedback task in the radio frequency energy supply unit), the communication management system service module can feed back the number of labels corresponding to each energy supply sector in the at least two corresponding sectors to the radio frequency energy supply unit to the reader-writer.
It should be noted that, at least two energy supply sectors corresponding to the radio frequency energy supply unit are preset, and as shown in fig. 3, different energy supply sectors can be distinguished by azimuth angle and pitch angle, that is, the corresponding energy supply sectors can be uniquely identified by using the azimuth angle and pitch angle corresponding to each energy supply sector.
In this embodiment, the radio frequency energy supply unit is a mechanical scanning working mode, and in practical application, an electric scanning mode may also be used, so that the radio frequency energy supply unit scans at least two energy supply sectors corresponding to the radio frequency energy supply unit.
By way of example, the scan period may be 15 minutes, 30 minutes, 120 minutes, etc., and the user may adaptively select the scan period based on actual requirements, which the embodiments of the present application are not limited to. In addition, the scanning period is equally divided based on the number of the energy supply sectors, so that the scanning time corresponding to the energy supply sectors is the same. For example, if the scanning period is 60 minutes and the rf energy supply unit corresponds to 4 energy supply sectors, the scanning time corresponding to each energy supply sector is 15 minutes.
It is noted that in some embodiments, the radio frequency energy supply unit may also be understood as a base station, customer premises equipment (Customer Premise Equipment, CPE), user terminal, or the like, including the components shown in fig. 1.
Fig. 4 is a flowchart of a tag management method according to an embodiment of the present application, where the tag management method is applied to the foregoing rf energy supply unit.
As shown in fig. 4, the tag management method may include the steps of:
and step 401, scanning at least two energy supply sectors corresponding to the radio frequency energy supply units in sequence, and obtaining a scanning result corresponding to each energy supply sector in the at least two energy supply sectors.
The scanning result comprises the number of labels corresponding to the energy supply sector.
As described above, the rf energy supply unit periodically scans the at least two energy supply sectors in sequence along the preset direction, when scanning to a certain energy supply sector, if the rf energy supply unit does not receive the feedback signal of the tag from the energy supply sector, a scanning result for indicating that the tag does not exist in the energy supply sector is generated, if the rf energy supply unit can receive the feedback signal of the tag from the energy supply sector, the number of the received feedback signals is used as the number of the tag existing in the energy supply sector, and a scanning result for indicating that the tag exists in the energy supply sector is generated, and at this time, the number of the tag existing in the energy supply sector is also included in the scanning result.
The preset direction is preset by the radio frequency energy supply unit, and in application, the reader can also adjust the scanning direction of the radio frequency energy supply unit from the preset direction to other directions by sending a direction adjustment signal to the radio frequency energy supply unit.
Step 402, determining label information according to a scanning result corresponding to each energy supply sector in the at least two energy supply sectors.
The tag information comprises the total number of area tags corresponding to the at least two energy supply sectors.
As described above, after determining the number of tags corresponding to each of the at least two energy supply sectors, the radio frequency energy supply unit may determine the total number of area tags corresponding to the at least two energy supply sectors by summing the number of tags corresponding to each of the at least two energy supply sectors, and generate tag information accordingly.
Step 403, sending the label information to a reader-writer.
By feeding back the tag information to the reader, the tag management effect of the reader can be improved, the step of sensing the tag by the reader can be omitted, the read-write processing flow of the reader to the tag is simplified, and the read-write efficiency of the reader to the tag is improved.
It should be noted that, the execution of step 403 may be performed when the radio frequency energy supply unit receives the tag information obtaining instruction sent by the reader/writer, or when the radio frequency energy supply unit triggers a tag information feedback task (timer task) preset therein.
As described above, in this embodiment, by means of scanning at least two energy supply sectors corresponding to the radio frequency energy supply unit sequentially, the number of tags supplied by the radio frequency energy supply unit in a single energy supply process can be reduced, so that the probability of collision of a plurality of feedback signals corresponding to a plurality of tags respectively is reduced, the energy supply effect of the radio frequency energy supply unit is improved, and the tag management effect of the reader-writer is improved.
Optionally, the scanning the at least two energy supply sectors corresponding to the radio frequency energy supply unit in turn, and obtaining a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, includes:
transmitting a first signal for sensing a tag to a target sector, wherein the target sector is any one of the at least two energy-supplying sectors;
receiving a second signal fed back by the tag according to the first signal when the target sector comprises the tag;
and generating a scanning result corresponding to the target sector according to the second signal.
As described above, the radio frequency energy supply unit can conveniently obtain whether the tag exists in the target sector by sending the first signal to the target sector and receiving the second signal based on the backscattering of the first signal (in the case that the tag exists in the target sector), and form a corresponding scanning result.
The first signal carries a preset sensing sequence for sensing the tag, and the second signal also carries the same sensing sequence in the back scattering process.
It should be noted that, the radio frequency energy supply unit may send the first signal to the tag in the target sector under the condition that the reader-writer does not communicate with the tag in the target sector, so as to avoid the situation that the tag receives two or more signals at the same time, and ensure the communication stability among the radio frequency energy supply unit, the reader-writer and the tag.
Further, the tag information further comprises distance information between the tag and a radio frequency energy supply unit; the distance information is determined according to the transmission time of the first signal, the receiving time of the second signal, the transmission rate of the first signal and the transmission rate of the second signal.
As described above, in the process of sensing the tag, the rf energy supply unit may further determine a separation distance between the tag and the rf energy supply unit according to the transmission time of the first signal, the reception time of the second signal, the transmission rate of the first signal, and the transmission rate of the second signal, where the separation distance is included in the distance information.
In application, the transmission rate of the first signal and the transmission rate of the second signal can be approximately understood as the same transmission rate, and the transmission rate can be measured and calculated in a pre-measurement manner, so that the interval distance between the tag and the radio frequency energy supply unit can be calculated by the following formula (1):
L＝(T2-T1-T0)×V (1)
wherein, the parameter L is used to refer to the interval distance between the tag and the rf energy supply unit, the parameter T2 is used to refer to the receiving time of the second signal, the parameter T1 is used to refer to the transmitting time of the first signal, the parameter T0 is used to refer to the preparation time of the tag between receiving the first signal and transmitting the second signal, and the parameter V is used to refer to the transmission rate.
For example, if the parameter T2 corresponding to the tag is set to 60 seconds, the parameter T1 is set to 55 seconds, the parameter T0 is set to 1 second, and the parameter V is set to 4 meters per second, the distance between the tag and the rf energy supply unit may be calculated to be 16 meters based on the above formula (1).
Optionally, the sending the tag information to the reader/writer includes:
under the condition that the numerical value of a first quantity parameter and the numerical value of a second quantity parameter are different, the numerical value of the first quantity parameter is adjusted to be consistent with the numerical value of the second quantity parameter, wherein the first quantity parameter is used for indicating the number of labels stored in the radio frequency energy supply unit and corresponding to a target sector, the second quantity parameter is used for indicating the number of labels displayed by a scanning result corresponding to the target sector, and the target sector is any energy supply sector of the at least two energy supply sectors;
and sending the adjusted first quantity parameters to a reader-writer.
The tag information may further include the number of tags corresponding to each of the at least two energy supply sectors, in addition to the total number of area tags corresponding to the at least two energy supply sectors.
When the radio frequency energy supply unit is deployed for the first time and the radio frequency energy supply unit scans to the target sector, the number of labels stored in the radio frequency energy supply unit and corresponding to the target sector is 0 (i.e. the first number parameter is 0), and when the labels exist in the target sector, the number of labels displayed by the scanning result corresponding to the target sector is not 0 (i.e. the second number parameter is not 0), at this time, the radio frequency energy supply unit updates the first number parameter according to the scanning result corresponding to the target sector (i.e. the numerical value of the second number parameter is given to the first number parameter), and feeds back the updated (also called adjusted) first number parameter to the reader-writer.
When the rf energy supply unit is deployed for a period of time (that means at least one scan period has elapsed) and the rf energy supply unit scans the target sector again, if the number of tags corresponding to the target sector stored in the rf energy supply unit is a (which can be understood as the number of tags corresponding to the target sector in the previous scan period, a is not 0 and is an integer), and in the current scan period, the number of tags displayed by the scan result corresponding to the target sector is B (B is a non-zero integer and is different from a), at this time, the rf energy supply unit updates the first number parameter according to the scan result corresponding to the target sector in the current scan period (that means that the value B replaces the original value a of the first number parameter), and feeds back the updated (also referred as adjusted) first number parameter to the reader-writer.
It should be noted that, after the current scanning period is finished, the radio frequency energy supply unit may also feed back the total number of the area tags perceived by the current scanning period to the reader-writer when the total number of the area tags corresponding to the at least two energy supply sectors changes (that is, the total number of the area tags perceived by the current scanning period is different from the total number of the area tags perceived by the previous scanning period), so as to facilitate management of the number of the tags by the reader-writer, and reduce the communication cost between the radio frequency energy supply unit and the reader-writer.
Optionally, the method further comprises:
receiving a control signal sent by the reader-writer;
responding to the control signal;
wherein the control signal comprises at least one of:
a first sub-signal for indicating the radio frequency energy supply unit to be turned on or off;
a second sub-signal for indicating a duty cycle of an antenna signal of the radio frequency energy supply unit;
a third sub-signal for indicating the antenna orientation of the radio frequency energy supply unit;
a fourth sub-signal for indicating an antenna transmit power of the radio frequency powered unit;
a fifth sub-signal for indicating an antenna scan direction of the radio frequency powered unit;
a sixth sub-signal for indicating an antenna scan rate of the radio frequency powered unit.
Illustratively, in the case of the first sub-signal comprised by the control signal, responding to the control signal may be understood as: and switching on or switching off the radio frequency energy supply unit according to the first sub-signal.
In the case of a second sub-signal comprised by the control signal, the response to the control signal can be understood as: and setting or updating the duty ratio of the antenna signal of the radio frequency energy supply unit according to the second sub-signal.
In the case of a third sub-signal comprised by the control signal, the response to the control signal may be understood as: and setting or updating the antenna direction (namely the pitch angle of the antenna) of the radio frequency energy supply unit according to the third sub-signal.
In the case of a fourth sub-signal comprised by the control signal, the response to the control signal can be understood as: and setting or updating the antenna transmitting power of the radio frequency energy supply unit according to the fourth sub-signal.
In the case of the fifth sub-signal comprised by the control signal, the response to the control signal can be understood as: and setting or updating the antenna scanning direction of the radio frequency energy supply unit according to the fifth sub-signal.
In the case of a sixth sub-signal comprised by the control signal, the response to the control signal may be understood as: and setting or updating the antenna scanning rate (namely the scanning period) of the radio frequency energy supply unit according to the sixth sub-signal.
Fig. 5 is a flowchart of a tag management method according to an embodiment of the present application, where the tag management method is applied to the foregoing reader-writer.
As shown in fig. 5, the tag management method may include the steps of:
Step 501, receiving tag information sent by a radio frequency energy supply unit.
The tag information is determined according to a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, and comprises the total number of area tags corresponding to the at least two energy supply sectors.
In the embodiment of the application, when the radio frequency energy supply unit scans at least two energy supply sectors corresponding to the radio frequency energy supply unit in sequence to obtain a scanning result corresponding to each energy supply sector, and tag information is determined according to the scanning result corresponding to each energy supply sector, the total number of the area tags corresponding to each radio frequency energy supply unit is obtained by receiving the tag information fed back by the radio frequency energy supply unit, so that management of a plurality of tags in the coverage area of the reader is facilitated, and the tag management effect of the reader is improved.
Optionally, after receiving the tag information sent by the radio frequency energy supply unit, the method further includes:
summing the total number of the area tags corresponding to each radio frequency energy supply unit in at least one radio frequency energy supply unit associated with the reader-writer to obtain the total number of the read-write tags;
And determining anti-collision parameters according to the total number of the read-write tags.
As described above, after the reader-writer obtains the total number of the area tags corresponding to each radio frequency energy supply unit associated with the reader-writer, the total number of the read-write tags for indicating the total number of the tags in the coverage area of the reader-writer can be determined through a summing calculation mode, and the anti-collision parameter is determined according to the total number of the read-write tags. Compared with the mode of randomly setting an initial anti-collision parameter and adjusting the anti-collision parameter for a plurality of times based on the actual tag reading and writing conditions, the method for determining the anti-collision parameter based on the total number of the read and writing tags can simplify the determination flow of the anti-collision parameter, improve the determination efficiency of the anti-collision parameter and further improve the tag management effect of the reader-writer.
The anti-collision parameter may be understood as the number of time slots (the time slot length is fixed and the time slot length is a preset parameter, for example, 5 seconds, 10 seconds, etc.) set in the reader-writer and used for performing the tag read-write operation, for example, when the anti-collision parameter is 10, the reader-writer corresponds to one read-write period and includes 10 time slots, each time slot can be used for performing the tag read-write operation, and by allocating different time slots to all tags within the coverage area of the reader-writer, the signal collision problem can be avoided and the stability of the tag read-write operation is ensured.
Further, the anti-collision parameter meets a preset condition;
the preset conditions include: the Q power of 2 is larger than the total number of the read-write labels, the Q-1 power of 2 is smaller than or equal to the total number of the read-write labels, and Q is the numerical value of the anti-collision parameter.
Through the setting of the preset conditions, the time length of one reading and writing period corresponding to the reader-writer can be reduced on the premise of avoiding signal collision, namely, the utilization rate of time slot resources of the reader-writer is improved, the inventory efficiency of the reader-writer is improved, the number of times that all inventory labels are needed by the reader-writer is reduced, the expenditure is saved, and then the label management effect of the reader-writer is improved.
In an alternative example, the specific value of the anti-collision parameter may be determined by equation (2), which equation (2) is as follows:
wherein the parameter Q 0 Numerical value for indicating anti-collision parameter, N i The method comprises the steps of providing a reader-writer associated radio frequency energy supply unit, wherein n is used for indicating the number of the reader-writer associated radio frequency energy supply units.
For example, in the case that the number of the 3 rf energy supply units associated with the reader-writer is 10, 11, and the value of the parameter f is 1, the value Q of the anti-collision parameter can be calculated according to the formula (2) 0 6.
Optionally, the method further comprises:
transmitting a control signal to the radio frequency energy supply unit so that the radio frequency energy supply unit responds to the control signal;
wherein the control signal comprises at least one of:
a first sub-signal for indicating the radio frequency energy supply unit to be turned on or off;
a second sub-signal for indicating a duty cycle of an antenna signal of the radio frequency energy supply unit;
a third sub-signal for indicating the antenna orientation of the radio frequency energy supply unit;
a fourth sub-signal for indicating an antenna transmit power of the radio frequency powered unit;
a fifth sub-signal for indicating an antenna scan direction of the radio frequency powered unit;
a sixth sub-signal for indicating an antenna scan rate of the radio frequency powered unit.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a tag management apparatus 600 provided in an embodiment of the present application, and as shown in fig. 6, the tag management apparatus 600 includes:
the scanning module 601 is configured to sequentially scan at least two energy supply sectors corresponding to the radio frequency energy supply unit, and obtain a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, where the scanning result includes the number of tags corresponding to the energy supply sectors;
An information determining module 602, configured to determine tag information according to a scan result corresponding to each of the at least two energy-supplying sectors, where the tag information includes a total number of area tags corresponding to the at least two energy-supplying sectors;
the first transmission module 603 is configured to send the tag information to a reader/writer.
Optionally, the scanning module 601 includes:
a signal transmitting sub-module, configured to transmit a first signal for sensing a tag to a target sector, where the target sector is any one of the at least two energy supply sectors;
a signal receiving sub-module, configured to receive, when the target sector includes a tag, a second signal fed back by the tag according to the first signal;
and the result generation sub-module is used for generating a scanning result corresponding to the target sector according to the second signal.
Optionally, the tag information further includes distance information between the tag and a radio frequency energy supply unit; the distance information is determined according to the transmission time of the first signal, the receiving time of the second signal, the transmission rate of the first signal and the transmission rate of the second signal.
Optionally, the first transmission module 603 includes:
An adjusting sub-module, configured to adjust, when a value of a first number parameter and a value of a second number parameter are different, the value of the first number parameter to be consistent with the value of the second number parameter, where the first number parameter is used to indicate a number of tags corresponding to a target sector stored in the radio frequency energy supply unit, the second number parameter is used to indicate a number of tags displayed by a scan result corresponding to the target sector, and the target sector is any one energy supply sector of the at least two energy supply sectors;
and the first transmission sub-module is used for sending the adjusted first quantity parameters to the reader-writer.
Optionally, the tag management apparatus 600 further includes:
the signal receiving module is used for receiving the control signal sent by the reader-writer;
the signal response module is used for responding to the control signal;
wherein the control signal comprises at least one of:
a first sub-signal for indicating the radio frequency energy supply unit to be turned on or off;
a second sub-signal for indicating a duty cycle of an antenna signal of the radio frequency energy supply unit;
a third sub-signal for indicating the antenna orientation of the radio frequency energy supply unit;
A fourth sub-signal for indicating an antenna transmit power of the radio frequency powered unit;
a fifth sub-signal for indicating an antenna scan direction of the radio frequency powered unit;
a sixth sub-signal for indicating an antenna scan rate of the radio frequency powered unit.
The label management device 600 can implement the processes of the method embodiment of fig. 4 in the embodiment of the present application, and achieve the same beneficial effects, and for avoiding repetition, a detailed description is omitted herein.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a tag management apparatus 700 provided in an embodiment of the present application, and as shown in fig. 7, the tag management apparatus 700 includes:
the second transmission module 701 is configured to receive tag information sent by a radio frequency energy supply unit, where the tag information is determined according to a scanning result corresponding to each of at least two energy supply sectors by scanning at least two energy supply sectors corresponding to the radio frequency energy supply unit in sequence, and the tag information includes a total number of area tags corresponding to the at least two energy supply sectors.
Optionally, the tag management apparatus 700 further includes:
the summation module is used for carrying out summation calculation on the total number of the regional tags corresponding to each radio frequency energy supply unit in at least one radio frequency energy supply unit associated with the reader-writer to obtain the total number of the read-write tags;
And the parameter determining module is used for determining anti-collision parameters according to the total number of the read-write labels.
Optionally, the anti-collision parameter meets a preset condition;
the preset conditions include: the Q power of 2 is larger than the total number of the read-write labels, the Q-1 power of 2 is smaller than or equal to the total number of the read-write labels, and Q is the numerical value of the anti-collision parameter.
Optionally, the second transmission module 701 is further configured to:
transmitting a control signal to the radio frequency energy supply unit so that the radio frequency energy supply unit responds to the control signal;
wherein the control signal comprises at least one of:
a first sub-signal for indicating the radio frequency energy supply unit to be turned on or off;
a second sub-signal for indicating a duty cycle of an antenna signal of the radio frequency energy supply unit;
a third sub-signal for indicating the antenna orientation of the radio frequency energy supply unit;
a fourth sub-signal for indicating an antenna transmit power of the radio frequency powered unit;
a fifth sub-signal for indicating an antenna scan direction of the radio frequency powered unit;
a sixth sub-signal for indicating an antenna scan rate of the radio frequency powered unit.
The label management device 700 can implement the processes of the method embodiment of fig. 5 in the embodiment of the present application, and achieve the same beneficial effects, and for avoiding repetition, the description is omitted here.
The embodiment of the application also provides communication equipment. Referring to fig. 8, the communication device may include a processor 801, a memory 802, and a program 8021 stored on the memory 802 and executable on the processor 801.
Any steps and the same advantages of the method embodiment corresponding to fig. 4 may be achieved when the program 8021 is executed by the processor 801, or any steps and the same advantages of the method embodiment corresponding to fig. 5 may be achieved when the program 8021 is executed by the processor 801, which are not described herein.
Those of ordinary skill in the art will appreciate that all or a portion of the steps of implementing the methods of the embodiments described above may be implemented by hardware associated with program instructions, where the program may be stored on a readable medium.
The embodiment of the present application further provides a readable storage medium, where a computer program is stored, where any step in the method embodiment corresponding to fig. 4 or fig. 5 can be implemented when the computer program is executed by a processor, and the same technical effect can be achieved, so that repetition is avoided, and no redundant description is provided herein.
Any combination of one or more computer readable media may be employed in the computer readable storage media of the embodiments herein. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium may be, for example, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present application may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or terminal. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
While the foregoing is directed to the preferred embodiments of the present application, it will be appreciated by those of ordinary skill in the art that numerous modifications and variations can be made without departing from the principles set forth herein, and such modifications and variations are to be regarded as being within the scope of the present application.
Claims (13)
1. A tag management method, for use in a radio frequency energy supply unit, the method comprising:
scanning at least two energy supply sectors corresponding to the radio frequency energy supply units in sequence, and obtaining a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, wherein the scanning result comprises the number of labels corresponding to the energy supply sectors;
determining label information according to a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, wherein the label information comprises the total number of area labels corresponding to the at least two energy supply sectors;
and sending the label information to a reader-writer.
2. The method according to claim 1, wherein scanning at least two energy supply sectors corresponding to the radio frequency energy supply unit in turn, and obtaining a scanning result corresponding to each energy supply sector of the at least two energy supply sectors, includes:
Transmitting a first signal for sensing a tag to a target sector, wherein the target sector is any one of the at least two energy-supplying sectors;
receiving a second signal fed back by the tag according to the first signal when the target sector comprises the tag;
and generating a scanning result corresponding to the target sector according to the second signal.
3. The method of claim 2, wherein the tag information further comprises distance information between the tag and a radio frequency powered unit; the distance information is determined according to the transmission time of the first signal, the receiving time of the second signal, the transmission rate of the first signal and the transmission rate of the second signal.
4. The method of claim 1, wherein the transmitting the tag information to the reader/writer comprises:
under the condition that the numerical value of a first quantity parameter and the numerical value of a second quantity parameter are different, the numerical value of the first quantity parameter is adjusted to be consistent with the numerical value of the second quantity parameter, wherein the first quantity parameter is used for indicating the number of labels stored in the radio frequency energy supply unit and corresponding to a target sector, the second quantity parameter is used for indicating the number of labels displayed by a scanning result corresponding to the target sector, and the target sector is any energy supply sector of the at least two energy supply sectors;
And sending the adjusted first quantity parameters to a reader-writer.
5. The method according to claim 1, wherein the method further comprises:
receiving a control signal sent by the reader-writer;
responding to the control signal;
wherein the control signal comprises at least one of:
a first sub-signal for indicating the radio frequency energy supply unit to be turned on or off;
a second sub-signal for indicating a duty cycle of an antenna signal of the radio frequency energy supply unit;
a third sub-signal for indicating the antenna orientation of the radio frequency energy supply unit;
a fourth sub-signal for indicating an antenna transmit power of the radio frequency powered unit;
a fifth sub-signal for indicating an antenna scan direction of the radio frequency powered unit;
a sixth sub-signal for indicating an antenna scan rate of the radio frequency powered unit.
6. A tag management method, which is applied to a reader/writer, the method comprising:
and receiving label information sent by a radio frequency energy supply unit, wherein the label information is determined according to a scanning result corresponding to each energy supply sector in at least two energy supply sectors by scanning at least two energy supply sectors corresponding to the radio frequency energy supply unit in sequence, and the label information comprises the total number of area labels corresponding to the at least two energy supply sectors.
7. The method of claim 6, wherein after receiving the tag information transmitted by the radio frequency energy unit, the method further comprises:
summing the total number of the area tags corresponding to each radio frequency energy supply unit in at least one radio frequency energy supply unit associated with the reader-writer to obtain the total number of the read-write tags;
and determining anti-collision parameters according to the total number of the read-write tags.
8. The method of claim 7, wherein the anti-collision parameter satisfies a preset condition;
the preset conditions include: the Q power of 2 is larger than the total number of the read-write labels, the Q-1 power of 2 is smaller than or equal to the total number of the read-write labels, and Q is the numerical value of the anti-collision parameter.
9. The method of claim 6, wherein the method further comprises:
transmitting a control signal to the radio frequency energy supply unit so that the radio frequency energy supply unit responds to the control signal;
wherein the control signal comprises at least one of:
a first sub-signal for indicating the radio frequency energy supply unit to be turned on or off;
a second sub-signal for indicating a duty cycle of an antenna signal of the radio frequency energy supply unit;
A third sub-signal for indicating the antenna orientation of the radio frequency energy supply unit;
a fourth sub-signal for indicating an antenna transmit power of the radio frequency powered unit;
a fifth sub-signal for indicating an antenna scan direction of the radio frequency powered unit;
a sixth sub-signal for indicating an antenna scan rate of the radio frequency powered unit.
10. A tag management apparatus, comprising:
the scanning module is used for scanning at least two energy supply sectors corresponding to the radio frequency energy supply units in sequence and obtaining a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, wherein the scanning result comprises the number of labels corresponding to the energy supply sectors;
the information determining module is used for determining label information according to the scanning result corresponding to each energy supply sector in the at least two energy supply sectors, wherein the label information comprises the total number of area labels corresponding to the at least two energy supply sectors;
and the first transmission module is used for sending the tag information to the reader-writer.
11. A tag management apparatus, comprising:
the second transmission module is used for receiving the tag information sent by the radio frequency energy supply unit, wherein the tag information is obtained by sequentially scanning at least two energy supply sectors corresponding to the radio frequency energy supply unit by the radio frequency energy supply unit, and determining according to a scanning result corresponding to each energy supply sector in the at least two energy supply sectors, and the tag information comprises the total number of area tags corresponding to the at least two energy supply sectors.
12. A communication device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; the method is characterized in that the processor is configured to read a program in a memory to implement the steps in the tag management method according to any one of claims 1 to 5 or to implement the steps in the tag management method according to any one of claims 6 to 9.
13. A readable storage medium storing a program, wherein the program when executed by a processor implements the steps of the tag management method according to any one of claims 1 to 5 or the steps of the tag management method according to any one of claims 6 to 9.
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| CN202211055250.6A CN117669608A (en) | 2022-08-31 | 2022-08-31 | Label management method and device and related equipment |
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| CN202211055250.6A CN117669608A (en) | 2022-08-31 | 2022-08-31 | Label management method and device and related equipment |
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