Antenna control method and device, secrecy cabinet and storage medium

Abstract

The invention provides an antenna control method and device, a secrecy cabinet and a storage medium. The secrecy cabinet comprises a cabinet body, an RFID antenna and a controller. Confidential materials stored in the confidential cabinet may be associated with the RFID tag. The controller can transmit a radio frequency identification signal through the RFID antenna to complete statistics and inventory of the confidential materials. If part of the RFID tags are shielded and the intensity of the feedback signals returned by the RFID tags is not enough, the controller can also determine the target RFID tag from the plurality of RFID tags. The target RFID tag can be indicated to enter the dormant state by sending the dormant instruction to the target RFID tag. Therefore, interference of feedback signals from different RFID tags can be avoided, the RFID tags in the confidential cabinet can be better identified, and omission is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of safe cabinets, and in particular to an antenna control method, device, safe cabinet and storage medium. Background Art

[0002] A safe is a storage device used to store important documents, valuables or sensitive information, usually with high security and confidentiality. In the fields of business and security, safes can be used to store confidential items, such as confidential documents or confidential equipment.

[0003] Due to the particularity of the safe, it is necessary to count and inventory the confidential items stored in the safe. For example, the safe can be opened regularly and the technicians can manually count and inventory the confidential items stored in the safe. Obviously, if the staff conducts the counting, there are problems such as low efficiency, high cost and easy deviation.

[0004] To solve this problem, some safes are integrated with radio frequency identification (RFID) antennas. By attaching RFID tags to confidential items and establishing an association between the confidential items and the RFID tags, the RFID antenna can identify the RFID tags to achieve statistical inventory of confidential items.

[0005] However, the above method may miss confidential items stored in the safe, resulting in inaccurate statistical inventory. Summary of the invention

[0006] In view of this, the present application provides an antenna control method, device, safe and storage medium, aiming to avoid missing confidential items stored in the safe.

[0007] In a first aspect, the present application provides an antenna control method, the method being applied to a controller of a safe, the safe also comprising a radio frequency identification (RFID) antenna, the controller being used to transmit and receive signals through the RFID antenna;

[0008] The method comprises:

[0009] Acquire a first feedback signal sent by a plurality of RFID tags, wherein the first feedback signal is generated and transmitted by the RFID tag after receiving a first radio frequency identification signal, the RFID tag is associated with a confidential item stored in the safe, and the first radio frequency identification signal is transmitted by the controller through the RFID antenna;

[0010] Determine at least one target RFID tag from the plurality of RFID tags according to the plurality of the first feedback signals, wherein the intensity of the first feedback signal emitted by the target RFID tag is greater than the intensity of the first feedback signal emitted by the non-target RFID tag;

[0011] Sending a sleep instruction to the at least one target RFID tag, wherein the sleep instruction is used to instruct the target RFID tag to enter a sleep state, and the RFID tag in the sleep state stops transmitting a feedback signal after receiving a radio frequency identification signal;

[0012] Transmitting a second radio frequency identification signal through the RFID antenna, and obtaining second feedback signals transmitted by a plurality of non-target RFID tags;

[0013] An inventory is performed on the RFID tags in the safe according to the first feedback signal and the second feedback signal.

[0014] In some possible implementations, before determining at least one target RFID tag from the RFID tags, the method further includes:

[0015] Comparing the magnitude relationship between the strengths of the plurality of first feedback signals and a preset strength threshold;

[0016] It is determined that among the multiple first feedback signals, there is a first feedback signal whose signal strength is less than the preset strength threshold; and the signal strength of the first feedback signal emitted by the target RFID tag is greater than the preset strength threshold.

[0017] In some possible implementations, the method further includes:

[0018] In response to satisfying the tag wake-up condition, a sleep termination instruction is sent, wherein the sleep termination instruction is used to instruct the target RFID tag to enter a working state from the sleep state, and the RFID tag in the working state transmits a feedback signal after receiving a radio frequency identification signal.

[0019] In some possible implementations, before determining that the tag wake-up condition is met, the method further includes:

[0020] Obtain a cabinet door closing signal; and / or,

[0021] Get inventory statistics instructions.

[0022] In a second aspect, the present application provides an antenna control device, which is applied to a controller of a safe, the safe also includes a radio frequency identification (RFID) antenna, and the controller is used to transmit and receive signals through the RFID antenna;

[0023] The device comprises:

[0024] an acquisition unit, configured to acquire first feedback signals sent by a plurality of RFID tags, wherein the first feedback signals are generated and transmitted by the RFID tags after receiving a first radio frequency identification signal, the RFID tags are associated with confidential items stored in the safe, and the first radio frequency identification signal is transmitted by the controller through the RFID antenna;

[0025] A determination unit, configured to determine at least one target RFID tag from the plurality of RFID tags according to the plurality of the first feedback signals, wherein the intensity of the first feedback signal emitted by the target RFID tag is greater than the intensity of the first feedback signal emitted by the non-target RFID tag;

[0026] A sending unit, configured to send a sleep instruction to the at least one target RFID tag, wherein the sleep instruction is used to instruct the target RFID tag to enter a sleep state, and the RFID tag in the sleep state stops transmitting a feedback signal after receiving a radio frequency identification signal;

[0027] The sending unit is further used to transmit a second radio frequency identification signal through the RFID antenna;

[0028] The acquisition unit is further used to acquire second feedback signals emitted by multiple non-target RFID tags;

[0029] A statistical unit is used to perform inventory statistics on the RFID tags in the safe according to the first feedback signal and the second feedback signal.

[0030] In some possible implementations, the determination unit is further used to compare the strength of the multiple first feedback signals with a preset strength threshold; determine that among the multiple first feedback signals, there is a first feedback signal whose signal strength is less than the preset strength threshold; and the signal strength of the first feedback signal emitted by the target RFID tag is greater than the preset strength threshold.

[0031] In some possible implementations, the sending unit is further used to send a sleep termination instruction in response to satisfying a tag wake-up condition, wherein the sleep termination instruction is used to instruct the target RFID tag to enter a working state from the sleep state, and the RFID tag in the working state transmits a feedback signal after receiving a radio frequency identification signal.

[0032] In some possible implementations, the acquisition unit is further used to acquire a cabinet door closing signal; and / or acquire an inventory counting instruction.

[0033] In a third aspect, the present application provides a safe. The safe includes an RFID antenna and a controller. The controller is used to execute the antenna control method as described in any one of the first aspects above.

[0034] In a fourth aspect, the present application provides a control device, comprising a memory and a processor, the memory being used to store instructions or codes, and the processor being used to execute the instructions or codes so that the control device executes any of the methods described in the first aspect.

[0035] In a fifth aspect, the present application provides a computer storage medium having codes stored therein. When the codes are executed, a device executing the codes implements the method described in any one of the aforementioned first aspects.

[0036] In a sixth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute any of the methods described in the first aspect.

[0037] The present application provides an antenna control method, device, safe cabinet and storage medium. The safe cabinet includes a cabinet body, an RFID antenna and a controller. The confidential materials stored in the safe cabinet can be associated with RFID tags. The controller can transmit a radio frequency identification signal through the RFID antenna, and identify the RFID tag in the safe cabinet based on the feedback signal returned by the RFID tag, and complete the statistical inventory of the confidential materials.

[0038] If part of the RFID tag is blocked, resulting in insufficient feedback signal strength returned by the RFID tag, the controller can also determine at least one target RFID tag with a larger feedback signal strength from multiple RFID tags based on the strength of the feedback signal. By sending a sleep instruction to the target RFID tag, the target RFID tag can be instructed to enter a sleep state. The RFID tag in the sleep state does not return a feedback signal after receiving the radio frequency identification signal sent by the RFID antenna. Therefore, instructing the target RFID tag to enter a sleep state can avoid interference from the feedback signal with a larger strength from the target RFID tag, thereby better identifying the feedback signal with a lower strength from the non-target RFID tag. In this way, interference from feedback signals of different RFID tags can be avoided, and the RFID tags in the safe can be better identified to avoid omissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A schematic diagram of a flow chart of an antenna control method provided in an embodiment of the present application;

[0041] Figure 2 A schematic diagram of the structure of an antenna control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to facilitate the inventory and statistics of confidential items stored in the safe, an RFID antenna can be set in the safe. When confidential items need to be stored in the safe, the confidential items can be bound to RFID tags. Binding confidential items and RFID tags refers to binding the physical RFID tag to the confidential object, such as binding the RFID tag to the confidential item by pasting, binding, etc., and binding the RFID tag to the confidential item on the other hand.

[0043] For example, if the confidential item to be stored is a confidential document, the RFID tag can be affixed to the cover of the confidential document, and the association between the identification of the RFID tag on the cover and the file name of the confidential material can be recorded in the system, indicating that the RFID tag and the confidential item are bound to each other.

[0044] When taking inventory statistics, the RFID antenna can emit a radio frequency identification signal. After receiving the radio frequency identification signal, the RFID tag can send a feedback signal. The RFID antenna can determine which RFID tags are stored in the safe according to the feedback signal from the RFID tag. In this way, according to the association between the RFID tag and the confidential items, it can be determined which confidential items are stored in the safe, and the statistical inventory of the confidential items stored in the safe can be realized.

[0045] However, in actual application scenarios, a large number of confidential items may be stored in the safe. In this way, there are a large number of RFID tags in the safe. When sending feedback signals, feedback signals from different RFID tags may interfere with each other, and it is impossible to distinguish feedback signals from different RFID tags well. On the other hand, in RFID technology, the energy for RFID tags to send feedback signals comes from the radio frequency identification signal sent by the RFID antenna. If there are too many RFID tags in the safe, the energy of the radio frequency identification signal emitted by the RFID antenna may not be enough to supply all RFID tags with the rated intensity to transmit feedback signals, resulting in the feedback signals returned by some RFID tags to have a low intensity. In this way, the RFID tags stored in the safe may not be identified, thereby missing confidential items.

[0046] In order to solve the above problems, the present application provides an antenna control method. The antenna control method can instruct some RFID tags in the safe to enter a dormant state to prevent different RFID tags from interfering with each other, thereby improving the accuracy of identifying RFID tags and avoiding missing confidential items stored in the safe.

[0047] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0048] See also Figure 1 , Figure 1 A method flow chart of the antenna control method provided in an embodiment of the present application includes:

[0049] S101: Acquire first feedback signals sent by multiple RFID tags.

[0050] In order to count and calculate the confidential items stored in the safe, the controller can send a radio frequency identification signal through the RFID antenna. After receiving the radio frequency identification signal, the RFID tag can generate a feedback signal and transmit the feedback signal. The RFID antenna can collect the feedback signal transmitted by the RFID tag. The controller can count the RFID tags that transmit the feedback signal based on the feedback signals collected by the RFID tags, thereby completing the inventory of the confidential items.

[0051] That is to say, after determining that it is necessary to conduct a statistical inventory of the confidential items stored in the safe, the controller can first control the RFID antenna to send a radio frequency identification signal and obtain feedback signals sent by multiple RFIDs. In the antenna control method provided in the embodiment of the present application, the controller can control the RFID antenna to send radio frequency identification signals multiple times in a statistical inventory. In order to distinguish different radio frequency identification signals, the radio frequency identification signal sent in step S101 is referred to as the first radio frequency identification signal. Accordingly, the feedback signal generated and returned by the RFID tag based on the first radio frequency identification signal can be referred to as the first feedback signal. The first radio frequency identification signal is a radio frequency identification signal sent by the RFID antenna for all RFID tags.

[0052] The following describes how to implement controller-triggered statistical inventory.

[0053] Specifically, the conditions for automatically triggering the statistical inventory can be pre-set in the controller. When the conditions are met, the controller can obtain the target moving position and control the motion mechanism to move the RFID antenna. For example, the time period for the statistical inventory can be pre-set so that the controller can perform statistical inventory periodically. For another example, the logic of automatically performing statistical inventory after the safe door is closed can be set. In this way, after detecting that the safe door is closed, the controller can actively trigger the statistical inventory, thereby controlling the RFID antenna to transmit the first video recognition signal.

[0054] For example, the administrator can trigger the statistical inventory operation through a terminal device (such as a computer, mobile phone or tablet computer, etc.). The terminal device can generate a statistical inventory instruction based on the statistical inventory operation and send it to the controller of the safe. The safe can include an instruction receiving device such as an antenna. The instruction receiving device can obtain the scanning instruction and send it to the controller. The controller can perform statistical inventory based on the scanning instruction.

[0055] For another example, a module for triggering operation such as an operation panel or an operation button can be set on the safe. The user can manually trigger a scanning instruction through the operation panel or the operation button to enable the controller to count the confidential materials stored in the safe.

[0056] S102: Determine at least one target RFID tag from a plurality of RFID tags according to a plurality of first feedback signals.

[0057] In the implementation provided in the embodiment of the present application, the controller can control the RFID tag to enter a dormant state to avoid mutual interference between the RFID tags. Prior to this, the controller can first determine whether it is necessary to control the RFID tag to enter a dormant state. If necessary, the controller can determine at least one target RFID tag from multiple RFID tags and continue to perform step S103. If not, the controller can determine the RFID tags stored in the safe according to multiple feedback signals, and determine the confidential items stored in the safe based on the RFID tags.

[0058] Specifically, the controller can make a judgment based on the number of RFID tags, the strength of the feedback signal, etc. For example, if the feedback signal indicates that the number of RFID tags stored in the safe is small, then the controller may not instruct the target RFID tag to sleep based on the fact that the existing feedback signal may be sufficient to complete the statistical inventory. For another example, if the signal strength of all feedback signals is sufficient for the controller to distinguish different RFID tags, then the controller may not instruct the target RFID tag to sleep.

[0059] Specifically, the controller can determine the target RFID tag based on the signal strength. Specifically, the controller can compare the strength of each first feedback signal with the preset strength threshold one by one. The preset strength threshold is a predetermined signal strength threshold that requires some RFID tags to sleep. If there is a first feedback signal with a signal strength lower than the preset strength threshold, it means that there is a first feedback signal with insufficient signal strength in the first feedback signal, and it is necessary to instruct some RFID tags to sleep to avoid interference. In other words, if the controller determines that among multiple first feedback signals, there is a first feedback signal with a signal strength lower than the preset strength threshold, the controller determines that it is necessary to instruct some RFID tags to sleep.

[0060] After determining that some RFID tags need to be instructed to sleep, the controller can first determine the RFID tags that need to sleep from the multiple RFID tags. In the embodiment of the present application, the RFID tags that need to sleep can be referred to as target RFID tags. That is, the controller can determine at least one target RFID tag from the multiple RFID tags based on the multiple first feedback signals.

[0061] Optionally, the target RFID tag may be determined based on signal strength: The strength of the first feedback signal emitted by the target RFID tag is greater than the strength of the first feedback signal emitted by the non-target RFID tag.

[0062] For example, the controller may compare the strength of each first feedback signal with the sleep strength threshold one by one, and determine the RFID tag corresponding to the first feedback signal whose signal strength is greater than the sleep strength threshold as the target RFID tag. The sleep strength threshold is the signal strength of the feedback signal of the pre-set RFID tag that needs to sleep. The sleep strength threshold may be equal to the aforementioned preset strength threshold, or may be greater than or less than the preset strength threshold.

[0063] For another example, the controller may also determine the target RFID tag according to a ratio. For example, the controller may preliminarily determine the number of RFID tags based on the number of first feedback signals, and then determine the RFID tag with higher signal strength as the target RFID tag according to a preset ratio.

[0064] S103: Sending a sleep instruction to at least one target RFID tag.

[0065] After determining the target RFID tag, the controller can send a sleep instruction to the target RFID tag. Specifically, the controller can generate a sleep instruction based on the identifier of the target RFID tag and send the sleep instruction through the RFID antenna. After receiving the sleep instruction, the RFID tag can determine whether the sleep instruction is a sleep instruction for itself. If so, the RFID tag can enter a sleep state. If not, the RFID tag can remain in a working state. After entering the sleep state, if a new radio frequency identification signal is received, the RFID tag stops transmitting a feedback signal. That is, after the target RFID tag enters the sleep state, if the RFID antenna transmits a new radio frequency identification signal, the target RFID will not generate a feedback signal based on the radio frequency identification signal.

[0066] S104: transmitting a second radio frequency identification signal through the RFID antenna, and acquiring second feedback signals transmitted by a plurality of non-target RFID tags.

[0067] After instructing the target RFID tag to sleep, the controller can control the RFID antenna to send a radio frequency identification signal again, and obtain feedback signals transmitted by multiple non-target RFID tags. In the embodiment of the present application, the radio frequency identification signal transmitted in step S104 is called a second radio frequency identification signal, and the feedback signal returned by the RFID tag based on the second radio frequency identification signal is called a second feedback signal.

[0068] Since the target RFID tag has entered a dormant state, the target RFID tag will not generate a feedback signal based on the second radio frequency identification signal. Therefore, the second feedback signal is generated and sent by the non-target RFID tag in the safe. Therefore, based on the second feedback signal, the controller can understand the non-target RFID tags stored in the safe. In addition, since the target RFID tag does not send a feedback signal, there is no interference from the feedback signal of the target RFID tag when acquiring the second feedback signal. In this way, the signal strength of the second feedback signal can be improved, and the interference of the feedback signal from the target RFID tag with higher signal strength can be avoided. In this way, the quality of the second feedback signal received by the RFID antenna is improved, and the non-target RFID antenna can be better identified based on the second feedback signal.

[0069] S105: Taking inventory and counting of the RFID tags in the safe according to the first feedback signal and the second feedback signal.

[0070] When taking inventory and counting the confidential items stored in the safe, statistics can be performed based on the first feedback signal and the second feedback signal. Specifically, the controller can count the target RFID tags in the safe based on multiple first feedback signals, and count the non-target RFID tags in the safe based on multiple second feedback signals. In this way, by performing statistics based on different feedback signals, both the target RFID tags with higher signal strength can be counted, and the non-target RFID tags with insufficient signal strength can be counted under low interference conditions. In this way, interference from feedback signals of different RFID tags can be avoided, the RFID tags in the safe can be better identified, and RFID tags can be avoided from being missed, so that the confidential items stored in the safe can be comprehensively and accurately counted.

[0071] In the implementation provided above, some RFID tags in the safe can be controlled to enter a dormant state to avoid mutual interference between RFID tags. However, in actual application scenarios, it may be necessary to perform inventory statistics on confidential items stored in the safe multiple times. In this way, if the target RFID tag is always in a dormant state, the target RFID tag cannot be counted in subsequent inventory statistics. For this reason, in an embodiment of the present application, the target RFID tag can also be woken up in a suitable actual state.

[0072] Specifically, the controller can send a sleep termination instruction through the RFID antenna when the tag wake-up condition is met. The sleep termination instruction is used to instruct the RFID tag to enter the working state from the sleep state. After receiving the sleep termination instruction, the target RFID tag can enter the working state from the sleep state. In this way, if the RFID antenna transmits the radio frequency identification signal again, the target RFID tag in the working state can generate and send a feedback signal based on the radio frequency identification signal. In this way, by waking up the target RFID, it is possible to avoid the sleep instruction of the last inventory statistics affecting the next inventory statistics.

[0073] In an embodiment of the present application, the tag wake-up condition can be set according to actual conditions. For example, it can be configured in the controller in advance that the tag wake-up condition is met after the inventory statistics are completed. In this way, after the inventory statistics are completed, the controller can wake up the RFID tags that have entered a dormant state during this inventory statistics. For another example, a statistical inventory can be performed after each cabinet door is closed. In this way, after detecting that the cabinet door of the safe is closed, for example, after obtaining a cabinet door closing signal, the controller can determine that the tag wake-up condition is met and wake up the dormant target RFID tag. For another example, if the user manually triggers the inventory statistics, the controller can obtain the inventory statistics instruction, and determine that the tag wake-up condition is met according to the inventory statistics instruction, thereby waking up the dormant target RFID tag.

[0074] In the implementation described above, the controller can actively wake up the target RFID tag in a dormant state. In some other possible implementations, the RFID tag in a dormant state can also be automatically woken up. Specifically, a timing mechanism can be set in the RFID tag. After the RFID tag is dormant for a preset period of time, the RFID tag can automatically switch back to a working state.

[0075] The above are some specific implementations of the safe and antenna control method provided in the embodiments of the present application. Based on this, the present application also provides a corresponding antenna control device. The antenna control device provided in the embodiments of the present application will be introduced from the perspective of functional modularization.

[0076] See also Figure 2 , Figure 2 A schematic diagram of the structure of an antenna control device provided in an embodiment of the present application. Specifically, Figure 2 The antenna control device 300 shown includes:

[0077] An acquisition unit 210 is used to acquire a first feedback signal sent by a plurality of RFID tags, wherein the first feedback signal is generated and transmitted by the RFID tag after receiving a first radio frequency identification signal, the RFID tag is associated with a confidential item stored in the safe, and the first radio frequency identification signal is transmitted by the controller through the RFID antenna;

[0078] A determination unit 220, configured to determine at least one target RFID tag from the plurality of RFID tags according to the plurality of the first feedback signals, wherein the strength of the first feedback signal emitted by the target RFID tag is greater than the strength of the first feedback signal emitted by the non-target RFID tag;

[0079] The sending unit 230 is used to send a sleep instruction to the at least one target RFID tag, wherein the sleep instruction is used to instruct the target RFID tag to enter a sleep state, and the RFID tag in the sleep state stops transmitting the feedback signal after receiving the radio frequency identification signal;

[0080] The sending unit 230 is further configured to transmit a second radio frequency identification signal through the RFID antenna;

[0081] The acquisition unit 210 is further configured to acquire second feedback signals emitted by a plurality of non-target RFID tags;

[0082] The statistical unit 240 is used to perform inventory statistics on the RFID tags in the safe according to the first feedback signal and the second feedback signal.

[0083] In some possible implementations, the determination unit 220 is further used to compare the strength of the multiple first feedback signals with a preset strength threshold; determine that among the multiple first feedback signals, there is a first feedback signal whose signal strength is less than the preset strength threshold; and the signal strength of the first feedback signal emitted by the target RFID tag is greater than the preset strength threshold.

[0084] In some possible implementations, the sending unit 230 is further used to send a sleep termination instruction in response to satisfying a tag wake-up condition, wherein the sleep termination instruction is used to instruct the target RFID tag to enter a working state from the sleep state, and the RFID tag in the working state transmits a feedback signal after receiving a radio frequency identification signal.

[0085] In some possible implementations, the acquisition unit 210 is further used to acquire a cabinet door closing signal; and / or acquire an inventory counting instruction.

[0086] The embodiments of the present application also provide corresponding safes, control devices, computer storage media and computer program products for implementing the technical solutions provided in the embodiments of the present application.

[0087] The safe comprises an RFID antenna and a controller, and the controller is used to execute the antenna control method described in any embodiment of the present application.

[0088] The control device includes a memory and a processor, the memory is used to store instructions or codes, and the processor is used to execute the instructions or codes, so that the control device executes the antenna control method described in any embodiment of the present application.

[0089] The computer storage medium stores codes, and when the codes are executed, the device executing the codes implements the antenna control method described in any embodiment of the present application.

[0090] The computer program product includes instructions. When the instructions are executed on a computer, the computer is enabled to execute the antenna control method described in any embodiment of the present application.

[0091] The "first" and "second" in the names such as "first" and "second" (if any) mentioned in the embodiments of the present application are only used as name identifiers and do not represent the first or second in order.

[0092] Through the description of the above implementation methods, it can be known that those skilled in the art can clearly understand that all or part of the steps in the above-mentioned embodiment method can be implemented by means of software plus a general hardware platform. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a storage medium, such as a read-only memory (ROM) / RAM, a magnetic disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network communication device such as a router) to execute the methods described in each embodiment of the present application or some parts of the embodiments.

[0093] Each embodiment in this specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.

[0094] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

Claims

1. An antenna control method, characterized in that: The method is applied to a controller of a safe, the safe also comprising a radio frequency identification (RFID) antenna, and the controller is used to transmit and receive signals through the RFID antenna; The method comprises: Acquire a first feedback signal sent by a plurality of RFID tags, wherein the first feedback signal is generated and transmitted by the RFID tag after receiving a first radio frequency identification signal, the RFID tag is associated with a confidential item stored in the safe, and the first radio frequency identification signal is transmitted by the controller through the RFID antenna; Determine at least one target RFID tag from the plurality of RFID tags according to the plurality of the first feedback signals, wherein the intensity of the first feedback signal emitted by the target RFID tag is greater than the intensity of the first feedback signal emitted by the non-target RFID tag; Sending a sleep instruction to the at least one target RFID tag, wherein the sleep instruction is used to instruct the target RFID tag to enter a sleep state, and the RFID tag in the sleep state stops transmitting a feedback signal after receiving a radio frequency identification signal; Transmitting a second radio frequency identification signal through the RFID antenna, and obtaining second feedback signals transmitted by a plurality of non-target RFID tags; An inventory is performed on the RFID tags in the safe according to the first feedback signal and the second feedback signal.

2. The method according to claim 1, characterized in that Before determining at least one target RFID tag from the RFID tags, the method further includes: Comparing the strength of the plurality of first feedback signals with a preset strength threshold; It is determined that among the multiple first feedback signals, there is a first feedback signal whose signal strength is less than the preset strength threshold; and the signal strength of the first feedback signal emitted by the target RFID tag is greater than the preset strength threshold.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: In response to satisfying the tag wake-up condition, a sleep termination instruction is sent, wherein the sleep termination instruction is used to instruct the target RFID tag to enter a working state from the sleep state, and the RFID tag in the working state transmits a feedback signal after receiving a radio frequency identification signal.

4. The method according to claim 3, characterized in that Before determining that the tag wake-up condition is met, the method further includes: Obtain a cabinet door closing signal; and / or, Get inventory statistics instructions.

5. An antenna control device, characterized in that: The device is applied to a controller of a safe, the safe also includes a radio frequency identification (RFID) antenna, and the controller is used to transmit and receive signals through the RFID antenna; The device comprises: an acquisition unit, configured to acquire first feedback signals sent by a plurality of RFID tags, wherein the first feedback signals are generated and transmitted by the RFID tags after receiving a first radio frequency identification signal, the RFID tags are associated with confidential items stored in the safe, and the first radio frequency identification signal is transmitted by the controller through the RFID antenna; A determination unit, configured to determine at least one target RFID tag from the plurality of RFID tags according to the plurality of the first feedback signals, wherein the intensity of the first feedback signal emitted by the target RFID tag is greater than the intensity of the first feedback signal emitted by the non-target RFID tag; A sending unit, configured to send a sleep instruction to the at least one target RFID tag, wherein the sleep instruction is used to instruct the target RFID tag to enter a sleep state, and the RFID tag in the sleep state stops transmitting a feedback signal after receiving a radio frequency identification signal; The sending unit is further used to transmit a second radio frequency identification signal through the RFID antenna; The acquisition unit is further used to acquire second feedback signals emitted by multiple non-target RFID tags; A statistical unit is used to perform inventory statistics on the RFID tags in the safe according to the first feedback signal and the second feedback signal.

6. The device according to claim 5, characterized in that The determination unit is further configured to compare the strength of the plurality of first feedback signals with a preset strength threshold; and determine that among the plurality of first feedback signals, there is a first feedback signal whose signal strength is less than the preset strength threshold; The signal strength of the first feedback signal emitted by the target RFID tag is greater than the preset strength threshold.

7. The device according to claim 5 or 6, characterized in that The sending unit is also used to send a sleep termination instruction in response to meeting the tag wake-up condition, and the sleep termination instruction is used to instruct the target RFID tag to enter the working state from the sleep state, and the RFID tag in the working state transmits a feedback signal after receiving the radio frequency identification signal.

8. The device according to claim 7, characterized in that The acquisition unit is further used to acquire a cabinet door closing signal; and / or to acquire an inventory counting instruction.

9. A safe, characterized in that: The safe comprises an RFID antenna and a controller, and the controller is used to execute the method as described in any one of claims 1-4.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the processor performs the method according to any one of claims 1 to 4.

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