CN-121981141-A - Radio frequency identification method, device, computer equipment and storage medium

Abstract

The invention discloses a radio frequency identification method, a device, computer equipment and a storage medium, wherein the method comprises the steps of obtaining the identification result of each identification step of a matcher in the radio frequency identification process; the method comprises the steps of judging whether a card searching abnormality is detected, responding to the identification result to be the card searching abnormality identification result, counting first continuous abnormality times, responding to the identification result to be the non-card searching abnormality identification result, clearing the first continuous abnormality times, and integrating second continuous abnormality times, and determining that a matcher is in a disconnection state when the first continuous abnormality times reach a preset first time number threshold value or the second continuous abnormality times reach a preset second time number threshold value. The disconnection state judgment is carried out by adopting different continuous abnormal times counting modes and times thresholds respectively, so that the quick response of the card finding abnormal recognition result is realized by using a smaller threshold value, and the erroneous judgment caused by interference is restrained by using a larger threshold value of the non-card finding abnormal recognition result, thereby ensuring that the disconnection state can be output in time when the matcher is abnormally removed, and improving the accurate judgment of the radio frequency recognition state.

Inventors

• WU DUONIAN
• BI LEI

Assignees

• 深圳市湾测技术有限公司

Dates

Publication Date

20260505

Application Date

20260403

Claims (10)

1. 1. A method of radio frequency identification, the method comprising: Acquiring the identification results of all the identification steps of the matcher in the radio frequency identification process, wherein the identification results comprise abnormal identification results, and the abnormal identification results comprise card searching abnormal identification results and non-card searching abnormal identification results; responding to the identification result as the card finding abnormality identification result, and counting first continuous abnormality times; responding to the identification result as the non-card finding abnormality identification result, clearing the first continuous abnormality times, and counting the second continuous abnormality times; And when the first continuous abnormal times reach a preset first time threshold value or the second continuous abnormal times reach a preset second time threshold value, determining that the matcher is in a disconnection state, wherein the first time threshold value is smaller than the second time threshold value.
2. 2. The radio frequency identification method of claim 1, wherein the identification result further comprises an identification success result, the identifying step comprises an identification identifying step, the method comprises: when the identification results of all the identification steps in the radio frequency identification process are identification success results, continuously executing the identification steps, and counting the number of successful identification times; And when the identification success times are not smaller than a preset success times threshold, determining that the matcher is in a state, wherein the success times threshold is smaller than the first time threshold.
3. 3. The radio frequency identification method of claim 2, wherein the method further comprises: and when the matcher is determined to be in the existing state, clearing the first continuous abnormal times and the second continuous abnormal times.
4. 4. The method of claim 1, wherein the non-card-seeking anomaly identification result includes an anti-collision anomaly identification result, a card selection anomaly identification result, a card density verification anomaly identification result, and an identification reading anomaly identification result, the second consecutive anomaly times includes an anti-collision anomaly times, a card selection anomaly times, a card density verification anomaly times, and an identification reading anomaly times, and the determining that the matcher is in an off state when the first consecutive anomaly times reach a preset first count threshold or the second consecutive anomaly times reach a preset second count threshold comprises: When the abnormal number of collision avoidance reaches a preset second time threshold, determining that the matcher is in a disconnection state; when the abnormal card selection times reach a preset second time threshold, determining that the matcher is in a disconnection state; when the abnormal times of the card secret verification reach a preset second time threshold value, determining that the matcher is in a disconnection state; And when the number of the identification reading anomalies reaches a preset second number threshold, determining that the matcher is in a disconnection state.
5. 5. The radio frequency identification method according to any one of claims 1 to 4, wherein the method further comprises: acquiring running state information corresponding to the matcher and initial second continuous abnormal times; And adjusting the initial second continuous abnormal times based on the running state information to obtain the second continuous abnormal times.
6. 6. The method of claim 5, wherein the operating state information includes a door lock locked state and a door lock unlocked state, and wherein adjusting the initial second consecutive number of anomalies based on the operating state information to obtain the second consecutive number of anomalies comprises: When the door lock is in a locking state, the initial second continuous abnormal times are reduced, and the second continuous abnormal times are obtained; And when the door lock is in an unlocked state, amplifying the initial second continuous abnormal times to obtain the second continuous abnormal times.
7. 7. The radio frequency identification method according to any one of claims 1 to 4, wherein the method further comprises: When the first continuous abnormal times do not reach the first time threshold and reach a preset third time threshold, or the second continuous abnormal times do not reach the second time threshold and reach a preset fourth time threshold, re-executing radio frequency identification after time delay to obtain a re-detection result; Determining the state of the matcher based on the rechecking result; wherein the third time threshold is less than the first time threshold, the first time threshold is less than the fourth time threshold, and the fourth time threshold is less than the second time threshold.
8. 8. A radio frequency identification device, the device comprising: The first acquisition module is used for acquiring the identification results of all the identification steps of the matcher in the radio frequency identification process, wherein the identification results comprise abnormal identification results, and the abnormal identification results comprise card finding abnormal identification results and non-card finding abnormal identification results; The first statistics module is used for responding to the identification result as the card finding abnormal identification result and counting first continuous abnormal times; the second statistical module is used for resetting the first continuous abnormal times and counting second continuous abnormal times in response to the identification result being the non-card finding abnormal identification result; The first determining module is configured to determine that the matcher is in a disconnected state when the first continuous abnormal frequency reaches a preset first frequency threshold or the second continuous abnormal frequency reaches a preset second frequency threshold, where the first frequency threshold is smaller than the second frequency threshold.
9. 9. A computer device comprising a memory, a processor, and computer readable instructions stored on the memory and running on the processor, wherein the processor, when executing the computer readable instructions, implements the radio frequency identification method of any of claims 1 to 7.
10. 10. A readable storage medium having stored thereon computer readable instructions, which when executed by a processor, implement the radio frequency identification method of any of claims 1 to 7.

Description

Radio frequency identification method, device, computer equipment and storage medium Technical Field The present invention relates to the field of industrial security, and in particular, to a radio frequency identification method, a radio frequency identification device, a computer device, and a storage medium. Background In the field of industrial safety control, in order to prevent personnel from entering a dangerous area by mistake or to continue operation of equipment in the case where a protective device is not closed, it is generally necessary to detect the closed state of a safety door, a shield or a protective mechanism in real time by a safety switch and to control external equipment to enter a stopped or safe state when it is detected that the protective structure is opened, displaced or mismatched. The common safety protection scheme comprises an electromagnetic force safety door switch, a non-contact safety switch, a powerful safety door switch and the like, judges whether the protection structure is in a normal closed state or not through the matching relation between the switch main body and the matcher, and outputs corresponding safety control signals. Along with the development of radio frequency identification technology, part of the prior art begins to adopt a mode of arranging an RFID antenna in a switch main body and arranging a wireless tag in a matcher, and the matching identification between the switch main body and the matcher is realized by identifying the identification information in the wireless tag, so that the unique identification capacity and the mismatching prevention capacity of the safety switch are improved. The scheme can improve the reliability of safety protection to a certain extent, and is applied to partial industrial safety scenes. However, in practical industrial applications, the safety switch often works in a scenario where the motor is running, the cables are densely laid, or the electromagnetic environment is complex, and is easily affected by motor interference signals or clutter signals introduced by external cables. The existing scheme generally adopts a mode of judging that the matcher is in a state of existence continuously for a plurality of times and judging that the matcher is in a state of disconnection continuously for a plurality of times, when the interference duration is long or the coupling relation exists between the interference and the identification beat, the situation that the radio frequency identification is in the state of disconnection easily occurs, and then the safety output signal is abnormally closed, so that equipment is stopped without accidents, and the running stability and the operating efficiency of the system are affected. Therefore, how to improve the anti-interference capability of radio frequency identification state judgment in a complex electromagnetic interference environment, reduce the misjudgment probability of the state of the matcher, and simultaneously consider the response speed of the matcher when removing, becomes a technical problem to be solved urgently in the field. Disclosure of Invention Accordingly, in order to solve the above-mentioned problems, it is necessary to provide a radio frequency identification method, a device, a computer device, and a storage medium, which have the advantages of improving the anti-interference capability of radio frequency identification state determination in a complex electromagnetic interference environment, reducing the false determination probability of the matcher state, and simultaneously considering the response speed of the matcher during removal. A method of radio frequency identification, the method comprising: Acquiring the identification results of all the identification steps of the matcher in the radio frequency identification process, wherein the identification results comprise abnormal identification results, and the abnormal identification results comprise card searching abnormal identification results and non-card searching abnormal identification results; responding to the identification result as the card finding abnormality identification result, and counting first continuous abnormality times; responding to the identification result as the non-card finding abnormality identification result, clearing the first continuous abnormality times, and counting the second continuous abnormality times; And when the first continuous abnormal times reach a preset first time threshold value or the second continuous abnormal times reach a preset second time threshold value, determining that the matcher is in a disconnection state, wherein the first time threshold value is smaller than the second time threshold value. Optionally, the identification result further includes an identification success result, the identification step includes an identification step, and the method includes: when the identification results of all the identification steps in the radio frequenc