A method and system for identifying RFID electronic tags of petroleum tools

Abstract

The present application relates to the field of data identification technology, and in particular to a method and system for identifying RFID electronic tags of petroleum tools. The method includes: obtaining target identification information of a target RFID electronic tag located within the identification range of an RFID identifier within a target time period; determining a first information complexity corresponding to the target identification information; determining a second information complexity of the target time period according to multiple first information complexities corresponding to multiple target identification information; determining a target signal strength according to the second information complexity, so as to control the RFID identifier to transmit an identification signal according to the target signal strength. Through the above technical solution, the accuracy of managing petroleum tools equipped with RFID electronic tags can be improved.

Description

Technical Field

[0001] The present application relates to the field of data identification technology, and in particular to a method and system for identifying an RFID electronic tag of a petroleum tool. Background Art

[0002] Oil tools refer to various equipment or instruments used in the process of oil exploration, drilling, production and maintenance. Common oil tools include drill bits, drill pipes, drilling fluids, drilling rigs, casings, perforating guns and plugs.

[0003] In order to achieve the management of tools including petroleum tools, RFID (Radio Frequency Identification) electronic tags can be set on the tools. For example, in the Chinese patent application document with publication number CN111079880A, a power safety tool system based on electronic tag technology is provided, including: a power safety tool, an RFID identification module, a server and a display terminal, the power safety tool is provided with an RFID tag; the RFID identification module includes an RFID identifier and a data acquisition module, the RFID identifier is connected to the data acquisition module, the RFID identifier is used to identify the RFID tag to generate identification data, and the data acquisition module is used to collect the identification data of the RFID identifier; the server is connected to the data acquisition module and the display terminal respectively, the server is used to store and analyze the identification data collected by the data acquisition module to obtain data analysis results, and the display terminal is used to display the data analysis results and query the identification data stored in the server.

[0004] In order to achieve the management of petroleum tools, for example, RFID identifiers can be installed at the entrances and exits of petroleum tool warehouses to identify the information carried by RFID tags installed on the petroleum tools. However, the current RFID identifiers have a low recognition success rate when identifying RFID tags, which makes the management of petroleum tools equipped with RFID tags less accurate. Summary of the invention

[0005] In order to overcome the problem of low accuracy in managing petroleum tools equipped with RFID tags in the related art, the present application provides a method and system for identifying RFID electronic tags of petroleum tools.

[0006] According to a first aspect of an embodiment of the present application, a method for identifying an RFID electronic tag of a petroleum tool is provided, wherein the petroleum tool is provided with an RFID electronic tag, comprising: obtaining target identification information of a target RFID electronic tag located within an identification range of an RFID identifier within a target time period, wherein the target time period is a historical time period before a current moment; determining a first information complexity corresponding to the target identification information, wherein the first information complexity is used to characterize the complexity of the petroleum tool information corresponding to the target identification information; determining a second information complexity of the target time period according to multiple first information complexities corresponding to multiple target identification information, wherein the second information complexity is used to characterize the complexity of the petroleum tool information corresponding to multiple identification information; determining a target signal strength according to the second information complexity, so as to control the RFID identifier to transmit an identification signal according to the target signal strength.

[0007] In this way, the target identification information of the target RFID electronic tag within the identification range of the RFID identifier within the target time period is obtained, the second information complexity is determined according to multiple target identification information, and the target signal strength of the RFID identifier at the current moment is determined according to the second information complexity; the second information complexity is used to characterize the complexity of the oil tool information corresponding to the multiple identification information. Since the target signal strength of the RFID identifier at the current moment is determined according to the complexity of the identification information of the RFID electronic tag within the target time period, when the complexity of the identification information of the RFID electronic tag within the target time period is high, the signal strength of the RFID identifier for identification can be improved, thereby improving the accuracy of identifying the RFID tag, thereby improving the accuracy of managing the oil tools equipped with the RFID electronic tag.

[0008] At the same time, since the target signal strength of the RFID identifier at the current moment is determined according to the complexity of the identification information of the RFID electronic tag within the target time period, when the complexity of the identification information of the RFID electronic tag within the target time period is low, the signal strength of the RFID identifier for identification can be reduced, thereby reducing the operating power consumption of the RFID identifier while ensuring the identification efficiency of the RFID, and reducing the cost of managing oil tools equipped with RFID.

[0009] Optionally, determining the first information complexity corresponding to the target identification information includes: , where E is the complexity of the first information corresponding to the target identification information, N is the number of sub-information types of the oil tool information corresponding to the target identification information, is the frequency of occurrence of the nth sub-information in the oil tool information corresponding to the target identification information, and log is a logarithmic function.

[0010] In this way, the first information complexity used to characterize the complexity of the oil tool information corresponding to the target identification information can be obtained through the frequency of occurrence of different sub-information of the oil tool information, so as to determine the signal strength of the identification signal of the RFID identifier according to the first information complexity.

[0011] Optionally, determining the second information complexity of the target time period according to the multiple first information complexities corresponding to the multiple target identification information includes: , where P is the second information complexity of the target time period, is the number of RFID electronic tags identified by the RFID identifier in the target time period, Y is the historical average identification quantity of the RFID identifier corresponding to the target duration in multiple historical time periods, and the target duration is the duration of the target time period; is the data processing amount for identifying the jth RFID electronic tag, A is the average data processing amount for identifying all RFID electronic tags within the target time period, is the first information complexity corresponding to the jth RFID electronic tag, and B is the average value of the first information complexity of all RFID electronic tags within the target time period.

[0012] In this way, the ratio of the first information complexity corresponding to the jth RFID electronic tag to the average value of the first information complexity of all RFID electronic tags within the target time period can reflect the degree of influence of the complexity of the oil tool information corresponding to different RFID tags within the target time period. Therefore, the influence of RFID electronic tags with higher complexity of oil tool information among all RFID electronic tags identified within the target time period on the second information complexity can be strengthened, so that the second information complexity can better reflect the complexity of the oil tool information corresponding to multiple identification information, and can also provide a more valuable reference for determining the signal strength of RFID electronic tags.

[0013] Optionally, determining the target signal strength according to the second information complexity includes: , where T is the target signal strength, M is the signal strength of the RFID identifier in the previous time period, π is the pi, arctan is the inverse tangent function, K is the rate of change of the historical recognition amount of the RFID identifier in multiple time periods before the current moment, P is the second information complexity of the target time period, and D is the average value of the second information complexity of the RFID identifier in multiple historical time periods.

[0014] In this way, the ratio of the second information complexity of the target time period to the average value of the second information complexity of the RFID identifier in multiple historical time periods can reflect the degree of difference between the second information complexity of the target time period and the average value of the second information complexity of the historical time period, so as to determine a more accurate signal strength of the RFID identifier.

[0015] Optionally, the rate of change of the historical recognition amount of the RFID identifier in multiple time periods before the current moment is obtained in the following manner: obtaining the historical recognition amount of the RFID identifier in multiple time periods before the current moment, the time span of the multiple time periods is the same as the time span of the target time period; performing curve fitting on the historical recognition amounts in the multiple time periods to obtain a target fitting curve, the target fitting curve including different historical recognition amounts of the RFID identifier in different time periods; determining the slope of the target fitting curve at the target time period, and using the slope as the rate of change of the historical recognition amount of the RFID identifier in the multiple time periods before the current moment.

[0016] Optionally, the control of the RFID identifier to transmit an identification signal according to the target signal strength includes: a controller sending a control signal to a radio frequency transceiver module of the RFID identifier; the control signal is used to enable the radio frequency transceiver module to adjust the power of the signal transmission so as to transmit an identification signal of the target signal strength through an antenna connected to the radio frequency transceiver module.

[0017] Optionally, the method also includes: obtaining the total data processing volume of the RFID identifier within the target time period; when the total data processing volume is less than a preset threshold, controlling the RFID identifier to transmit an identification signal according to a first frequency band at the current moment; when the total data processing volume is greater than or equal to the preset threshold, controlling the RFID identifier to transmit an identification signal according to a second frequency band at the current moment, the second frequency band being greater than the first frequency band, and the first frequency band and the second frequency band being frequency bands supported by the RFID electronic tag.

[0018] In this way, the identification signal of the corresponding frequency band can be selected to identify the RFID electronic tag according to the total data processing volume in the target time period, thereby improving the efficiency and accuracy of the management of petroleum tools.

[0019] Optionally, the method also includes: obtaining the number of RFID electronic tags within the identification range of the RFID identifier within the target time period; when the number of tags is less than a preset number threshold, controlling the RFID identifier to transmit an identification signal according to a third frequency band at the current moment; when the number of tags is greater than a preset number threshold, controlling the RFID identifier to transmit an identification signal according to a fourth frequency band at the current moment; the fourth frequency band is greater than the third frequency band, and the third frequency band and the fourth frequency band are frequency bands supported by the RFID electronic tag.

[0020] In this way, by adjusting the number of RFID electronic tags recognized by the RFID identifier within the target time period, the frequency band of the identification signal emitted by the RFID identifier can be adaptively adjusted, thereby improving the recognition efficiency of the RFID identifier for the RFID electronic tags set on the petroleum tools.

[0021] According to a second aspect of an embodiment of the present application, a system for identifying an RFID electronic tag of a petroleum tool is provided, wherein the petroleum tool is provided with an RFID electronic tag, comprising: a processor and a memory, wherein the memory stores computer program instructions, and when the computer program instructions are executed by the processor, the steps of the method for identifying an RFID electronic tag of a petroleum tool provided in the first aspect of the present application are implemented.

[0022] The technical solution provided by the embodiments of the present application may include the following beneficial effects: obtaining target identification information of a target RFID electronic tag within the identification range of an RFID identifier within a target time period, determining a second information complexity based on multiple target identification information, and determining a target signal strength of the RFID identifier at the current moment based on the second information complexity; the second information complexity is used to characterize the complexity of the oil tool information corresponding to the multiple identification information. Since the target signal strength of the RFID identifier at the current moment is determined based on the complexity of the identification information of the RFID electronic tag within the target time period, when the complexity of the identification information of the RFID electronic tag within the target time period is high, the signal strength of the RFID identifier for identification can be improved, thereby improving the accuracy of identifying the RFID tag, thereby improving the accuracy of managing the oil tools equipped with the RFID electronic tag.

[0023] At the same time, since the target signal strength of the RFID identifier at the current moment is determined according to the complexity of the identification information of the RFID electronic tag within the target time period, when the complexity of the identification information of the RFID electronic tag within the target time period is low, the signal strength of the RFID identifier for identification can be reduced, thereby reducing the operating power consumption of the RFID identifier while ensuring the identification efficiency of the RFID, and reducing the cost of managing oil tools equipped with RFID.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0026] Figure 1 It is a flow chart showing a method for identifying an RFID electronic tag of a petroleum tool according to an exemplary embodiment;

[0027] Figure 2 The figure is a schematic diagram of the structure of a petroleum tool RFID electronic tag identification system according to an exemplary embodiment. DETAILED DESCRIPTION

[0028] Here, exemplary embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application.

[0029] First, the application scenario of the embodiment of the present application is briefly introduced. In the application scenario of the present application, in order to facilitate the management of petroleum tools, an RFID electronic tag with pre-stored petroleum tool information can be set on the petroleum tool, and the RFID electronic tag can be identified by using an RFID identifier to realize the identification of the petroleum tool.

[0030] For example, the collection and use of petroleum tools can be managed, or a display screen can be provided at the collection point of petroleum tools, and the remaining validity period of petroleum tools with a certain validity period can be displayed when the user collects the tools.

[0031] Compared with setting an identification code on the surface of the petroleum tool, such as setting a QR code or a barcode on the surface of the petroleum tool, in the usage scenario of the petroleum tool, the surface of the petroleum tool may be contaminated with oil or dust that affects the recognition effect of the QR code or the barcode. Therefore, by setting an RFID electronic tag on the surface of the petroleum tool to manage the petroleum tool, the accuracy of the management of the petroleum tool can be improved.

[0032] However, when the RFID identifier identifies the electronic tags set on the petroleum tools, due to the limited signal strength of the RFID identifier, if there are multiple RFID electronic tags to be identified within the identification range of the RFID identifier, the identification of some RFID electronic tags to be identified may be missed, resulting in omissions in the management of the petroleum tools. Therefore, the accuracy of the management of the petroleum tools equipped with RFID tags is low.

[0033] In response to the above technical problems, an embodiment of the present application provides a method and system for identifying RFID electronic tags of oil tools, which obtains target identification information of a target RFID electronic tag located within an identification range of an RFID identifier within a target time period, determines a second information complexity based on multiple target identification information, and determines a target signal strength of the RFID identifier at the current moment based on the second information complexity; the second information complexity is used to characterize the complexity of the oil tool information corresponding to the multiple identification information. Since the target signal strength of the RFID identifier at the current moment is determined based on the complexity of the identification information of the RFID electronic tag within the target time period, when the complexity of the identification information of the RFID electronic tag within the target time period is high, the signal strength of the RFID identifier for identification can be improved, thereby improving the accuracy of identifying the RFID tag, thereby improving the accuracy of managing the oil tools provided with the RFID electronic tags.

[0034] At the same time, since the target signal strength of the RFID identifier at the current moment is determined according to the complexity of the identification information of the RFID electronic tag within the target time period, when the complexity of the identification information of the RFID electronic tag within the target time period is low, the signal strength of the RFID identifier for identification can be reduced, thereby reducing the operating power consumption of the RFID identifier while ensuring the identification efficiency of the RFID, and reducing the cost of managing oil tools equipped with RFID.

[0035] Figure 1 is a flow chart showing a method for identifying an RFID electronic tag of a petroleum tool according to an exemplary embodiment, which can be applied to electronic devices for managing petroleum tools, such as Figure 1 As shown, the method includes the following steps.

[0036] In step S101, target identification information of a target RFID electronic tag within a recognition range of an RFID identifier within a target time period is obtained.

[0037] The target time period is a historical time period before the current moment, for example, it may be a time period of 5 minutes before the current moment. The working status of the RFID identifier in the historical time period before the current moment can provide a better reference for determining the working status of the RFID identifier at the current moment. The working status of the RFID identifier may include, for example, the signal strength of the transmitted identification signal, or the frequency band of the identification signal transmitted by the RFID identifier.

[0038] When the RFID electronic tag is within the identification range of the RFID identifier, the RFID electronic tag can receive the identification signal sent by the RFID identifier and generate an induced current based on the received identification signal. The RFID electronic tag that generates the induced current can send a response signal to the RFID identifier, and the RFID identifier can complete the identification of the identification information carried in the RFID electronic tag based on the response signal received from the RFID.

[0039] The RFID electronic tag may carry identification information corresponding to the petroleum tool. The identification information may be, for example, a code or number corresponding to the petroleum tool, and the petroleum tool may be identified through the identification information. For example, the target database may store petroleum tool information corresponding to the identification information. The petroleum tool information may include the name of the petroleum tool, the status of receipt, the current person who has received the petroleum tool, historical receipt records, the length of time in use, historical maintenance records, and the remaining validity period.

[0040] The petroleum tool information corresponding to the petroleum tool can also be directly stored in the RFID electronic tag. Depending on the time when the RFID identifier identifies the petroleum tool, the electronic device can change the petroleum tool information in the target database, such as switching the use status of the petroleum tool; or the electronic device can also change the information stored in the RFID electronic tag.

[0041] For example, a user can borrow and return a petroleum tool through an electronic device. An RFID identifier can be provided on the electronic device. The RFID identifier can be fixed or movable. The RFID identifier can identify one or more RFID electronic tags within the identification range so as to identify the RFID electronic tag.

[0042] By using an RFID identifier to identify the RFID electronic tag set on the petroleum tool, the electronic device can identify the identification information carried in the RFID electronic tag, and use the identification information corresponding to the RFID electronic tag to determine the petroleum tool information corresponding to the identification information from the target database. The electronic device can also be provided with a display screen so that the user can view the petroleum tool information corresponding to the petroleum tool; or, the display screen provided on the electronic device can also be a touch screen so that the user can interact with the electronic device.

[0043] In step S102, the first information complexity corresponding to the target identification information is determined.

[0044] The first information complexity is used to characterize the complexity of the oil tool information corresponding to the target identification information; the oil tool information corresponding to the identification information of the RFID electronic tags set on different oil tools may be different, or the RFID electronic tags set on the oil tool may carry the oil tool information corresponding to the oil tool. Therefore, the amount of information carried by the RFID electronic tags set on different oil tools may be different.

[0045] Since the amount of information carried by the RFID electronic tags installed on different petroleum tools may be different, the recognition efficiency achieved by the RFID identifier when identifying the RFID electronic tags installed on different petroleum tools may be different. Therefore, the first information complexity corresponding to the target identification information can be determined. The first information complexity is used to characterize the complexity of the petroleum tool information corresponding to the target identification information, so as to determine the signal strength of the identification signal emitted by the RFID for identification.

[0046] In one embodiment, determining the first information complexity corresponding to the target identification information includes: , where E is the complexity of the first information corresponding to the target identification information, N is the number of sub-information types of the oil tool information corresponding to the target identification information, is the frequency of occurrence of the nth sub-information in the oil tool information corresponding to the target identification information, and log is a logarithmic function.

[0047] The petroleum information of the same petroleum tool may include multiple sub-information. For example, for a petroleum tool that is a consumable with a certain validity period, the petroleum information of the petroleum tool may include the remaining validity period or the remaining number of uses. However, the management of a petroleum tool that does not have an validity period may be based on actual damage or malfunction, and the remaining number of uses or the remaining validity period may not be recorded in the petroleum tool information of the petroleum tool. Therefore, there are differences in the complexity of the petroleum tool information corresponding to different petroleum tools.

[0048] By determining the number of types of sub-information of the petroleum tool information corresponding to the target identification information, the more types of sub-information of the petroleum tool information, the more complex the petroleum tool information corresponding to the petroleum tool is generally, and the RFID identifier may require a higher signal strength recognition signal to achieve the same recognition effect when recognizing the RFID tag; on the contrary, the fewer types of sub-information of the petroleum tool information, the simpler the petroleum tool information corresponding to the petroleum tool is generally, and the RFID identifier can achieve the same recognition effect through a lower signal strength recognition signal when recognizing the RFID tag.

[0049] In the calculation formula of the first information complexity in the embodiment of the present application, the frequency of occurrence of the sub-information in the oil tool information corresponding to the target identification information is between 0 and 1, and the result of the logarithmic function processing the frequency is a negative number. However, by constraining the negative sign in the calculation formula of the first information complexity, it can be ensured that the value of the first information complexity is a positive number.

[0050] In this way, the first information complexity used to characterize the complexity of the oil tool information corresponding to the target identification information can be obtained through the frequency of occurrence of different sub-information of the oil tool information, so as to determine the signal strength of the identification signal of the RFID identifier according to the first information complexity.

[0051] In step S103, the second information complexity of the target time period is determined according to the multiple first information complexities corresponding to the multiple target identification information.

[0052] The second information complexity is used to characterize the complexity of the petroleum tool information corresponding to the multiple identification information.

[0053] The RFID identifier may need to identify multiple RFID electronic tags within the same time period. In order to comprehensively reflect the complexity of the oil tool information corresponding to the identification information recognized by the RFID, the second information complexity corresponding to the target time period can be determined based on the multiple first information complexities corresponding to the multiple identification information.

[0054] The greater the complexity of the second information, the greater the processing volume required for RFID identification within the target time period. In order to ensure the recognition speed or recognition accuracy of the RFID, the RFID identifier requires a higher signal strength. On the contrary, the smaller the complexity of the second information, the smaller the processing volume required for RFID identification within the target time period. The RFID electronic tag can be identified through a lower signal strength, taking into account the recognition efficiency of the RFID electronic tag and the operating power consumption of the electronic device.

[0055] In one embodiment, determining the second information complexity of the target time period according to the multiple first information complexities corresponding to the multiple target identification information includes: , where P is the second information complexity of the target time period, is the number of RFID electronic tags identified by the RFID identifier in the target time period, Y is the historical average identification quantity of the RFID identifier corresponding to the target duration in multiple historical time periods, and the target duration is the duration of the target time period; is the data processing amount for identifying the jth RFID electronic tag, A is the average data processing amount for identifying all RFID electronic tags within the target time period, is the first information complexity corresponding to the jth RFID electronic tag, and B is the average value of the first information complexity of all RFID electronic tags within the target time period.

[0056] By measuring the ratio of the number of RFID electronic tags recognized by the RFID identifier within the target time period to the historical average recognition quantity of the RFID identifier corresponding to the target duration in multiple historical time periods, the level of the number of RFID electronic tags that the RFID identifier needs to process within the target time period can be determined so as to adjust the signal strength of the RFID identifier.

[0057] The historical average recognition quantity of the RFID identifier corresponding to the target duration in multiple historical time periods can be determined based on the total historical recognition quantity of the RFID identifier, the historical duration and the target duration. For example, if the RFID has recognized a total of 900 RFID electronic tags in the past 30 days and the target duration is 1 day, the historical average recognition quantity corresponding to the target duration is 900 / 30=30.

[0058] By taking the ratio of the data processing volume for identifying the jth RFID electronic tag to the average data processing volume for identifying all RFID electronic tags within the target time period, it is possible to reflect the degree of influence of the data processing volumes corresponding to different RFID electronic tags within the target time period. Therefore, it is possible to strengthen the influence of RFID electronic tags with higher data processing volumes among all RFID electronic tags identified within the target time period on the second information complexity, so that the second information complexity can better reflect the complexity of the oil tool information corresponding to multiple identification information, and can also provide a more valuable reference for determining the signal strength of RFID electronic tags.

[0059] The ratio of the first information complexity corresponding to the j-th RFID electronic tag to the average first information complexity of all RFID electronic tags within the target time period can reflect the influence of the complexity of the oil tool information corresponding to different RFID tags within the target time period. Therefore, the influence of RFID electronic tags with higher complexity of oil tool information among all RFID electronic tags identified within the target time period on the second information complexity can be strengthened, so that the second information complexity can better reflect the complexity of the oil tool information corresponding to multiple identification information, and can also provide a more valuable reference for determining the signal strength of RFID electronic tags.

[0060] In step S104, the target signal strength is determined according to the second information complexity to control the RIFD identifier to transmit the identification signal according to the target signal strength.

[0061] When an RFID reader identifies a tag according to an identification signal of the same signal strength, the higher the complexity of the information contained in the RFID electronic tag to be identified, the lower the identification speed or accuracy of the RFID electronic tag will be.

[0062] On the contrary, if the information contained in the RFID electronic tag to be identified is less complex, or if there is no need to identify the RFID electronic tag, continuing to identify it with an identification signal of higher signal strength will cause unnecessary power consumption to the RFID identifier.

[0063] Therefore, in the embodiment of the present application, the target signal strength is determined according to the second information complexity. Since the second information complexity can characterize the complexity of the oil tool information corresponding to the multiple identification information identified within the target time period, a higher signal strength can be used to transmit the identification signal when the complexity of the information in the RFID electronic tag to be processed is higher, thereby ensuring the recognition success rate and recognition rate of the RFID electronic tag.

[0064] In the embodiment of the present application, the recognition of the RFID electronic tag by the RFID identifier is the recognition of the identification information received within the recognition range by the RFID identifier.

[0065] In one embodiment, determining the target signal strength according to the second information complexity includes: , where T is the target signal strength, M is the signal strength of the RFID identifier in the previous time period, π is the pi, arctan is the inverse tangent function, K is the rate of change of the historical recognition amount of the RFID identifier in multiple time periods before the current moment, P is the second information complexity of the target time period, and D is the average value of the second information complexity of the RFID identifier in multiple historical time periods.

[0066] Here, the ratio of the second information complexity of the target time period to the average value of the second information complexity of the RFID identifier in multiple historical time periods can reflect the degree of difference between the second information complexity of the target time period and the average value of the second information complexity of the historical time period, so as to determine a more accurate signal strength of the RFID identifier.

[0067] For example, when the second information complexity of the target time period is greater than the average second information complexity of the RFID identifier in multiple historical time periods, it means that the information complexity contained in the RFID electronic tags that the RFID identifier needs to process in the target time period is relatively high. A value greater than 1 can make the obtained target signal strength greater than the signal strength of the RFID identifier in the previous time period.

[0068] On the contrary, when the second information complexity of the target time period is less than the average value of the second information complexity of the RFID identifier in multiple historical time periods, it means that the information complexity contained in the RFID electronic tags that the RFID identifier needs to process in the target time period is relatively low. A value less than 1 can make the obtained target signal strength smaller than the signal strength of the RFID identifier in the previous time period.

[0069] K in the calculation formula of the target signal strength is the rate of change of the historical recognition amount of the RFID identifier in multiple time periods before the current moment. When the historical recognition amount in multiple time periods before the current moment increases, the rate of change of the historical recognition amount in multiple time periods is a positive number. Since the historical recognition amount in multiple time periods before the current moment increases, it means that the number of RFID electronic tags that need to be identified has increased, and the number of RFID electronic tags that need to be identified at the current moment may continue this upward trend. In order to ensure the recognition rate or recognition accuracy of RFID electronic tags, the signal strength of the recognition signal emitted by the RFID identifier can be improved to ensure the accuracy of the management of petroleum tools.

[0070] When the historical recognition amount in multiple time periods before the current moment decreases, the rate of change of the historical recognition amount in multiple time periods is negative; since the historical recognition amount in multiple time periods before the current moment decreases, it means that the number of RFID electronic tags that need to be identified is reduced, the signal strength of the identification signal emitted by the RFID identifier can be reduced to reduce the power consumption of the RFID identifier for identifying the RFID electronic tags.

[0071] In one embodiment, the rate of change of the historical recognition amount of the RFID identifier in multiple time periods before the current moment is obtained in the following manner: obtaining the historical recognition amount of the RFID identifier in multiple time periods before the current moment, the time span of the multiple time periods is the same as the time span of the target time period; performing curve fitting on the historical recognition amounts in the multiple time periods to obtain a target fitting curve, the target fitting curve includes different historical recognition amounts of the RFID identifier in different time periods; determining the slope of the target fitting curve at the target time period, and using the slope as the rate of change of the historical recognition amount of the RFID identifier in the multiple time periods before the current moment.

[0072] For example, the duration of multiple time periods and the target time period can all be 10 minutes. The historical recognition amount of the RFID identifier within every 10 minutes before the current moment can be determined. The target fitting curve can be obtained by curve fitting the historical recognition amount in multiple time periods. The change trend of the historical recognition amount can be reflected more intuitively through the obtained target fitting curve.

[0073] The curve fitting of the historical recognition quantities in multiple time periods can be realized, for example, by least squares fitting, Bezier curve fitting, quadratic spline curve fitting, cubic spline curve fitting and the like.

[0074] In one embodiment, the control of the RFID identifier to transmit an identification signal according to the target signal strength includes: a controller sending a control signal to a radio frequency transceiver module of the RFID identifier; the control signal is used to enable the radio frequency transceiver module to adjust the power of the signal transmission so as to transmit an identification signal of the target signal strength through an antenna connected to the radio frequency transceiver module.

[0075] The RFID controller can process the received signal and the transmitted signal through the RF transceiver module. For example, the transmitted signal emitted by the RF transceiver module is transmitted to the outside through the antenna that is connected to the RF transceiver module, and the antenna that is connected to the RF transceiver module sends the received signal to the RF transceiver module, and the RF transceiver module decodes the received signal.

[0076] The controller can send a control signal to the radio frequency transceiver module of the RFID identifier to control the signal sent by the radio frequency transceiver module; wherein the controller can be integrated in the processor of the RFID controller, and can also be integrated in the radio frequency transceiver module of the RFID.

[0077] The controller sends a control signal to the radio frequency transceiver module of the RFID identifier, which can make the radio frequency transceiver module adjust the power of signal transmission to transmit an identification signal of the target signal strength through the antenna connected to the radio frequency transceiver module.

[0078] In one embodiment, the total data processing volume of the RFID identifier within the target time period can also be obtained; when the total data processing volume is less than a preset threshold, the RFID identifier is controlled to transmit an identification signal according to the first frequency band at the current moment; when the total data processing volume is greater than or equal to the preset threshold, the RFID identifier is controlled to transmit an identification signal according to the second frequency band at the current moment, the second frequency band is greater than the first frequency band, and the first frequency band and the second frequency band are frequency bands supported by the RFID electronic tag.

[0079] For example, a first frequency band receiving module and a second frequency band receiving module may be provided in the RFID electronic tag, wherein the first frequency band receiving module is used to support the reception of the reception signal of the first frequency band, and the second frequency band receiving module is used to support the reception of the reception signal of the second frequency band.

[0080] The RF transceiver module of the RFID identifier can support the transmission of transmission signals of the first frequency band and the second frequency band. For example, the RF transceiver module of the RFID identifier includes a first RF transceiver module and a second RF transceiver module. The first RF transceiver module can realize the transmission of identification signals of the first frequency band, and the second RF transceiver module can realize the transmission of identification signals of the second frequency band.

[0081] The frequency bands supported by the RFID electronic tag may include at least two of the radio frequency identification RFID frequency bands such as 125KHz, 13.56MHz, 433MHz, 800MHz, 900MHz, 2.4GHz or 5.8GHz. Since the RFID identifier is mainly used to send identification signals to the RFID electronic tag, the frequency band that the RFID identifier can send can cover the frequency band supported by the RFID electronic tag.

[0082] The memory of the RFID identifier usually records the total data processing volume of the RFID in a certain period of time, and the total data processing volume of the RFID identifier in a target period of time can indirectly reflect the complexity of the information of the processed RFID electronic tags.

[0083] In this way, according to the total data processing volume within the target time period, the identification signal of the corresponding frequency band is selected to identify the RFID electronic tag. The data transmission rates of different frequency bands are different. Therefore, adaptive adjustment of the frequency band of the identification signal of the RFID identifier can be achieved, thereby improving the efficiency and accuracy of the management of petroleum tools.

[0084] In one embodiment, the number of RFID electronic tags within the identification range of the RFID identifier within the target time period can also be obtained; when the number of tags is less than a preset number threshold, the RFID identifier is controlled to transmit an identification signal according to a third frequency band at the current moment; when the number of tags is greater than the preset number threshold, the RFID identifier is controlled to transmit an identification signal according to a fourth frequency band at the current moment; the fourth frequency band is greater than the third frequency band, and the third frequency band and the fourth frequency band are frequency bands supported by the RFID electronic tag.

[0085] For example, a third frequency band receiving module and a fourth frequency band receiving module may be provided in the RFID electronic tag, wherein the third frequency band receiving module is used to support the reception of the reception signal of the third frequency band, and the fourth frequency band receiving module is used to support the reception of the reception signal of the fourth frequency band.

[0086] The RF transceiver module of the RFID identifier can support the transmission of transmission signals in the third frequency band and the fourth frequency band. For example, the RF transceiver module of the RFID identifier includes a third RF transceiver module and a fourth RF transceiver module. The third RF transceiver module can realize the transmission of identification signals in the third frequency band, and the fourth RF transceiver module can realize the transmission of identification signals in the fourth frequency band.

[0087] The frequency bands supported by the RFID electronic tag may include at least two of the radio frequency identification RFID frequency bands such as 125KHz, 13.56MHz, 433MHz, 800MHz, 900MHz, 2.4GHz or 5.8GHz.

[0088] The memory of an RFID identifier usually stores the number of RFID electronic tags identified within a period of time. When the RFID identifier transmits an identification signal at the same signal strength, the number of RFID electronic tags identified by the RFID identifier at the same time or time period will directly affect the RFID identifier's recognition accuracy or recognition speed for the identified RFID electronic tags.

[0089] In this way, by measuring the number of RFID electronic tags recognized by the RFID identifier within the target time period, adaptive adjustment of the frequency band of the identification signal emitted by the RFID identifier can be achieved. The data transmission rates of different frequency bands are different, thereby improving the recognition efficiency of the RFID identifier for the RFID electronic tags set on the petroleum tools.

[0090] Among them, the third frequency band is independent of the first frequency band, for example, the third frequency band and the first frequency band can have the same signal strength, or the third frequency band and the first frequency band can have different signal strengths; the fourth frequency band is independent of the second frequency band, for example, the fourth frequency band and the second frequency band can have the same signal strength, or the fourth signal strength and the second frequency band can have different signal strengths; the fourth frequency band can be greater than the third frequency band, and the second frequency band can be greater than the first frequency band.

[0091] Figure 2 1 is a schematic diagram of a petroleum tool RFID electronic tag identification system according to an exemplary embodiment. Figure 2 The petroleum tool RFID electronic tag identification system includes: a processor 1100 and a memory 1200, wherein the memory 1200 stores computer program instructions, and when the computer program instructions are executed by the processor 1100, all or part of the steps of the petroleum tool RFID electronic tag identification method in the present application are implemented.

[0092] An RFID electronic tag is provided on the petroleum tool, and the RFID electronic tag carries identification information of the petroleum tool, so that the RFID identifier can determine the petroleum tool information corresponding to the petroleum tool from a database storing multiple petroleum tool information according to the identification information of the petroleum tool; alternatively, the RFID electronic tag can also carry the petroleum tool information of the petroleum tool, and the RFID identifier can recognize the RFID electronic tag to obtain the petroleum tool information corresponding to the petroleum tool.

[0093] Through the oil tool RFID electronic tag identification system provided in the embodiment of the present application, the target identification information of the target RFID electronic tag located in the identification range of the RFID identifier within the target time period is obtained, and the second information complexity is determined according to multiple target identification information. According to the second information complexity, the target signal strength of the RFID identifier at the current moment is determined; the second information complexity is used to characterize the complexity of the oil tool information corresponding to the multiple identification information. Since the target signal strength of the RFID identifier at the current moment is determined according to the complexity of the identification information of the RFID electronic tag within the target time period, when the complexity of the identification information of the RFID electronic tag within the target time period is high, the signal strength of the RFID identifier for identification can be improved, thereby improving the accuracy of identifying the RFID tag, thereby improving the accuracy of managing the oil tools provided with the RFID electronic tags.

[0094] At the same time, since the target signal strength of the RFID identifier at the current moment is determined according to the complexity of the identification information of the RFID electronic tag within the target time period, when the complexity of the identification information of the RFID electronic tag within the target time period is low, the signal strength of the RFID identifier for identification can be reduced, thereby reducing the operating power consumption of the RFID identifier while ensuring the identification efficiency of the RFID, and reducing the cost of managing oil tools equipped with RFID.

[0095] It should be understood that the features of some embodiments of the various applications described herein may be combined with each other unless specifically stated otherwise.

[0096] Although terms such as "first", "second", and "third" may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. Instead, these terms are only used to distinguish one component, part, region, layer, or section from another component, part, region, layer, or section. Therefore, without departing from the teachings of the examples described herein, the first component, part, region, layer, or section mentioned in the examples may also be referred to as the second component, part, region, layer, or section.

[0097] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description herein, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0098] In addition, the word "exemplary" is used herein to mean serving as an example, instance, or diagram. Any aspect or design described herein as "exemplary" is not necessarily to be understood as being advantageous over other aspects or designs. Instead, the use of the word exemplary is intended to present concepts in a concrete manner. As used herein, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or".

[0099] Likewise, although the present application has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. With particular regard to the various functions performed by the components (e.g., elements, resources, etc.) described above, unless otherwise noted, the terms used to describe such components are intended to correspond to any component (functionally equivalent) that performs the specific functions of the described components, even if not structurally equivalent to the disclosed structures.

[0100] In addition, while particular features of the present application may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations as may be desired and advantageous for any given or particular application.

[0101] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present application, and the specification and embodiments are only considered as exemplary.

[0102] It should be understood that the present application is not limited to the exact construction that has been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof.

Claims

1. A method for identifying an RFID electronic tag of a petroleum tool, wherein the petroleum tool is provided with an RFID electronic tag, characterized in that: include: Obtain target identification information of a target RFID electronic tag within the identification range of the RFID identifier within a target time period, where the target time period is a historical time period before the current moment; Determine a first information complexity corresponding to the target identification information, where the first information complexity is used to characterize the complexity of the petroleum tool information corresponding to the target identification information; Determine the second information complexity of the target time period according to the multiple first information complexities corresponding to the multiple target identification information, where the second information complexity is used to characterize the complexity of the oil tool information corresponding to the multiple identification information; Determine the target signal strength according to the second information complexity to control the RIFD identifier to transmit the identification signal according to the target signal strength; Among them, the first information complexity corresponding to the target identification information , N is the number of sub-information types of the oil tool information corresponding to the target identification information, is the frequency of occurrence of the nth sub-information in the oil tool information corresponding to the target identification information, and log is a logarithmic function; The second information complexity of the target time period , is the number of RFID electronic tags identified by the RFID identifier in the target time period, Y is the historical average identification quantity of the RFID identifier corresponding to the target duration in multiple historical time periods, and the target duration is the duration of the target time period; is the data processing amount for identifying the jth RFID electronic tag, A is the average data processing amount for identifying all RFID electronic tags within the target time period, is the first information complexity corresponding to the jth RFID electronic tag, and B is the average first information complexity of all RFID electronic tags in the target time period; Target signal strength , M is the signal strength of the RFID identifier in the previous time period, π is the pi, arctan is the inverse tangent function, K is the rate of change of the historical recognition amount of the RFID identifier in multiple time periods before the current moment, P is the second information complexity of the target time period, and D is the average value of the second information complexity of the RFID identifier in multiple historical time periods; the time span of multiple time periods is the same as the time span of the target time period.

2. The method for identifying a petroleum tool RFID electronic tag according to claim 1, characterized in that: The change rate of the historical recognition quantity of the RFID identifier in multiple time periods before the current moment is obtained in the following way: Obtain the historical recognition quantity of the RFID identifier in multiple time periods before the current moment; Performing curve fitting on the historical recognition amounts in the multiple time periods to obtain a target fitting curve, wherein the target fitting curve includes different historical recognition amounts of the RFID identifier in different time periods; The slope of the target fitting curve at the target time period is determined, and the slope is used as the change rate of the historical recognition amount of the RFID identifier in multiple time periods before the current moment.

3. The method for identifying a petroleum tool RFID electronic tag according to claim 1, characterized in that: The controlling the RIFD identifier to transmit the identification signal according to the target signal strength comprises: The controller sends a control signal to the radio frequency transceiver module of the RFID identifier; the control signal is used to make the radio frequency transceiver module adjust the power of the signal transmission so as to transmit an identification signal of the target signal strength through the antenna connected to the radio frequency transceiver module.

4. The method for identifying a petroleum tool RFID electronic tag according to claim 1, characterized in that: The method further comprises: Obtaining the total data processing volume of the RFID identifier within a target time period; When the total data processing amount is less than a preset threshold, controlling the RFID identifier to transmit the identification signal according to the first frequency band at the current moment; When the total data processing volume is greater than or equal to a preset threshold, the RFID identifier is controlled to transmit an identification signal according to a second frequency band at the current moment, the second frequency band is greater than the first frequency band, and the first frequency band and the second frequency band are frequency bands supported by the RFID electronic tag.

5. The method for identifying a petroleum tool RFID electronic tag according to claim 1, characterized in that: The method further comprises: Obtain the number of RFID electronic tags within the identification range of the RFID identifier within the target time period; When the number of tags is less than a preset number threshold, controlling the RFID identifier to transmit an identification signal according to the third frequency band at the current moment; When the number of tags is greater than a preset number threshold, the RFID identifier is controlled to transmit an identification signal according to a fourth frequency band at the current moment; the fourth frequency band is greater than the third frequency band, and the third frequency band and the fourth frequency band are frequency bands supported by the RFID electronic tag.

6. A system for identifying RFID electronic tags of petroleum tools, wherein the petroleum tools are provided with RFID electronic tags, characterized in that: include: A processor and a memory, wherein the memory stores computer program instructions, and when the computer program instructions are executed by the processor, the method for identifying the petroleum tool RFID electronic tag according to any one of claims 1 to 5 is implemented.

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