CN-121998544-A - Automatic checking system based on RFID and intelligent weighing fusion

CN121998544ACN 121998544 ACN121998544 ACN 121998544ACN-121998544-A

Abstract

The invention relates to the technical field of data processing, in particular to an automatic inventory system based on RFID and intelligent weighing fusion. The method comprises the steps of collecting various key data, rapidly screening candidate records seriously interfered by metal based on RFID phase variance, determining target records which are wrongly identified and are invalid to be checked through identity ambiguity and space-time conflict confidence, finally determining a risk sequence by adopting various data, ensuring that an early warning sequence is closely related to actual conditions, and simultaneously adjusting preset parameters based on historical accuracy and abnormal quantity, so that accurate insights and active early warning on storage hidden registration errors of a thermal power plant are realized, consistency of stock accounting is fundamentally ensured, and the problems of risk early warning lag and low recognition accuracy caused by excessively relying on single static data are effectively solved.

Inventors

Jiang Cunwu
XU YAO
KAI XIANG
Wu Youpin
YANG KEKE
DONG GUOQIANG
ZHAI ZHIMIN
CAO RONGRONG

Assignees

国能神皖安庆发电有限责任公司

Dates

Publication Date: 20260508
Application Date: 20251203

Claims (10)

1. Automatic inventory system based on integration of RFID and intelligent weighing, which is characterized by comprising: The acquisition module is used for acquiring the theoretical weight of each spare part in the warehouse-out record warehouse, the RFID original phase angle in the warehouse-out registering process of each warehouse-out record to be detected, the signal intensity, registering position, registering weight, actual weighing value, goods shelf vibration intensity, warehouse-out frequency and early warning accuracy in the past preset inventory period based on the preset acquisition period; the judging module is used for judging a plurality of candidate records according to the phase variance value determined based on the RFID original phase angle and a preset phase jitter threshold value; a determination module to determine a number of suspicious records based on conflict confidence determined based on all of the signal strength, the registration location, the actual weighing value, the registration weight, and the shelf vibration strength of each of the candidate records; The tracing module is used for determining identity ambiguity according to the actual weighing value of each suspicious record and the theoretical weight of each spare part, and determining an abnormality reason according to the identity ambiguity and the phase variance value to obtain a plurality of target records; the sorting module is used for determining a risk list according to the phase variance value, the identity ambiguity, the conflict confidence and the ex-warehouse frequency of each target record; The adjusting module is used for adjusting the preset acquisition period or the preset phase jitter threshold according to the early warning accuracy and the number of each target record; The early warning module is used for generating an abnormal ex-warehouse early warning report according to the risk list obtained based on the adjusted preset acquisition period or the adjusted preset phase jitter threshold value.
2. The automatic inventory system based on the integration of RFID and intelligent weighing according to claim 1, wherein the determination module comprises: A phase change calculation unit for calculating the phase variance value according to the RFID original phase angle within a preset determination time period; And the judging unit is connected with the phase change calculating unit and is used for judging a plurality of candidate records according to the comparison result of the phase variance value and the preset phase jitter threshold value.
3. The automatic inventory system based on the fusion of RFID and intelligent weighing of claim 2, wherein the determining module comprises: A degree of deviation calculation unit configured to determine a real-time space likelihood position based on all of the signal strengths, and calculate a degree of spatial deviation based on the real-time space likelihood position and the registration position; A contradiction degree calculation unit configured to calculate an operation contradiction degree from the actual weighing value, the registered weight, and the rack vibration intensity; And the determining unit is respectively connected with the deviation degree calculating unit and the contradiction degree calculating unit and is used for determining a plurality of suspicious records according to the spatial deviation degree and the operation contradiction degree.
4. The automatic inventory system based on RFID and intelligent weighing fusion of claim 3, wherein the determining unit includes: a confidence calculation subunit to calculate a conflict confidence from the spatial deviation and the operational contradiction; and the determining subunit is connected with the confidence coefficient calculating subunit and used for determining a plurality of suspicious records according to the comparison result of the conflict confidence coefficient and the preset conflict confidence coefficient threshold value.
5. The automatic inventory system based on the integration of RFID and intelligent weighing of claim 4, wherein the traceability module comprises: An ambiguity calculation unit for calculating the attribution likelihood of each spare part according to the actual weighing value and the theoretical weight of each spare part, determining a spare part probability distribution according to all attribution likelihoods, and calculating identity ambiguity according to the spare part probability distribution; And the tracing unit is connected with the ambiguity calculation unit and used for determining an abnormality reason according to the identity ambiguity and the phase variance value so as to obtain a plurality of target records.
6. The automatic inventory system based on the integration of RFID and intelligent weighing of claim 5, wherein the traceability unit comprises: a score computation subunit to compute root cause confidence scores from the identity ambiguities and the phase variance values; The tracing subunit is connected with the score calculation subunit and is used for judging that the abnormal cause of the suspicious record is RFID identity misjudgment caused by metal reflection according to the comparison result of the root cause confidence score and a preset confidence score threshold value, and judging that the suspicious record is a target record due to the fact that weighing verification is bypassed due to the fact that the weight is similar, so that a plurality of target records are obtained.
7. The automatic inventory system based on RFID and intelligent weighing fusion of claim 6, wherein the ranking module comprises: An index calculation unit to calculate a risk index from the phase variance value, the identity ambiguity, and the collision confidence; the sorting unit is connected with the index calculating unit and used for sorting all target records in a descending order according to the risk indexes of the target records to obtain a temporary list; And the correction unit is connected with the ordering unit and is used for correcting the temporary list according to the ex-warehouse frequency of each target record to obtain a risk list.
8. The automatic inventory system based on the integration of RFID and intelligent weighing according to claim 7, wherein the correction unit comprises: the frequency deviation calculating subunit is used for calculating a plurality of frequency deviations according to the frequency of the delivery of each target record and the frequency of the delivery of each target record which is arranged in front of the target record and is in a preset number; And the correction subunit is connected with the frequency deviation calculation subunit and is used for exchanging the sequence position of the target record corresponding to the maximum frequency deviation in all the frequency deviations when the maximum frequency deviation in all the frequency deviations is larger than a preset frequency deviation threshold value so as to correct the temporary list and obtain a risk list.
9. The automatic inventory system based on the integration of RFID and intelligent weighing of claim 8, wherein the adjustment module comprises: The fluctuation calculating unit is used for calculating an accuracy fluctuation value according to the early warning accuracy within a preset adjustment time length; The quantity calculating unit is connected with the fluctuation calculating unit and used for calculating a quantity fluctuation value according to the quantity of all the target records in the preset adjustment time period and calculating a quantity deviation according to the quantity fluctuation value and a preset quantity fluctuation threshold value based on a comparison result of the accuracy fluctuation value and the preset accuracy fluctuation threshold value; the jitter adjusting unit is connected with the quantity calculating unit and used for adjusting a preset phase jitter threshold value according to the comparison result of the quantity deviation and a preset quantity deviation threshold value; The period adjusting unit is connected with the jitter adjusting unit and is used for adjusting the preset acquisition period according to all the early warning accuracy in the next preset adjustment duration based on the adjusted preset phase jitter threshold.
10. The automatic inventory system based on the integration of RFID and intelligent weighing according to claim 9, wherein the cycle adjusting unit comprises: The response calculation subunit is used for calculating an accuracy response value according to all the early warning accuracy rates in the next preset adjustment time period; The period adjustment subunit is connected with the response calculation subunit and is used for adjusting the preset acquisition period according to the comparison result of the accuracy response value and the preset accuracy fluctuation threshold value.

Description

Automatic checking system based on RFID and intelligent weighing fusion Technical Field The invention relates to the technical field of data processing, in particular to an automatic checking system based on RFID and intelligent weighing fusion. Background Under the wave of the lean and intelligent supply chain management at present, the warehouse logistics is used as a core link for connecting production and consumption, and the operation efficiency and accuracy of the warehouse logistics are directly related to the cost control and market response speed of enterprises. The traditional warehouse checking relies on manual checking or bar code scanning, and has the inherent defects of low efficiency, easy error, incapability of mastering real inventory in real time and the like. In the prior art, although schemes attempt to combine RFID and weighing, the schemes stay on the simple superposition level of RFID identification and weighing rechecking quantity, the fusion and intelligent analysis of data in a deeper level cannot be realized, and the capability of accurately positioning high-risk abnormal events from massive warehouse-in and warehouse-out records and tracing the sources of the high-risk abnormal events is not provided. CN120450586A discloses a warehouse management prediction method, equipment and medium based on emergency materials, wherein the method comprises the steps of carrying out distribution calculation on related warehouse-in goods positions according to material partitions of an emergency warehouse to obtain material warehouse-in information, carrying out corresponding inquiry on the material warehouse-in information based on the emergency material demand information to obtain required inventory information, carrying out image recognition processing on the current warehouse-in material through the required inventory information and through image matching recognition of local entropy difference to obtain current warehouse-in information, carrying out future demand prediction calculation on the emergency material demand information according to the required inventory information and the current warehouse-in information to determine future material demand information, carrying out related future material consumption calculation on the future material demand information and the residual material warehouse information to obtain material transportation strategy, and completing material allocation processing of the emergency warehouse based on the material transportation strategy. Therefore, the warehouse management prediction method based on the emergency materials has the following problems that the warehouse outlet materials are checked by relying on image recognition, the processing speed is low, the real-time collection and update of warehouse in-warehouse out information cannot be realized, the update of inventory data is obviously delayed, the demand of the emergency materials is sudden and unpredictable in nature, the method relies on the historical demand information to predict in the future, the prediction result is seriously misaligned under the real emergency condition, the field demand of dynamic change cannot be responded, the real-time performance required by the emergency response cannot be met, the reliability of the recognition technology is limited, and finally the system is poor in both timeliness and accuracy of risk early warning. Disclosure of Invention Therefore, the invention provides an automatic inventory system based on the fusion of RFID and intelligent weighing, which is used for solving the problems of risk early warning lag and low recognition accuracy caused by too relying on single static data in the prior art through a multi-source data analysis and dynamic adjustment mechanism. In order to achieve the above purpose, the present invention provides an automatic inventory system based on the integration of RFID and intelligent weighing, comprising: The acquisition module is used for acquiring the theoretical weight of each spare part in the warehouse-out record warehouse, the RFID original phase angle in the warehouse-out registering process of each warehouse-out record to be detected, the signal intensity, registering position, registering weight, actual weighing value, goods shelf vibration intensity, warehouse-out frequency and early warning accuracy in the past preset inventory period based on the preset acquisition period; the judging module is used for judging a plurality of candidate records according to the phase variance value determined based on the RFID original phase angle and a preset phase jitter threshold value; a determination module to determine a number of suspicious records based on conflict confidence determined based on all of the signal strength, the registration location, the actual weighing value, the registration weight, and the shelf vibration strength of each of the candidate records; The tracing module is used for determining identity