CN111091629B - Distributed attendance checking method and system based on RFID - Google Patents
Distributed attendance checking method and system based on RFID Download PDFInfo
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Abstract
The invention discloses a distributed attendance checking method and system based on RFID (radio frequency identification devices). A passive RFID reader identifies and records the communication time with a passive RFID tag and reads the data of the passive RFID tag, wherein the passive RFID tag corresponds to an object to be checked one by one; the passive RFID reader sends the communication time and the corresponding data of the passive RFID tag to the attendance host; the first camera and the second camera respectively shoot front face photography videos of an object to be checked in and out of the checking-in channel, and the shot front face photography videos are sent to the checking-in host; the attendance host determines the attendance record of the object to be checked according to the communication time between the passive RFID reader and the passive RFID tag, the corresponding data and the front face photographing video, and sends the attendance record of the object to be checked to an attendance center; the attendance center calculates the attendance time of each object to be checked according to the attendance record of each object to be checked, and accurate, efficient and low-cost RFID distributed attendance is realized.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a distributed attendance checking method and system based on RFID.
Background
In order to investigate the attendance condition of an employee, a company needs to record the attendance and attendance conditions of the employee, and calculate the attendance time according to the attendance and attendance time, the current commonly used attendance modes comprise card swiping attendance, fingerprint attendance and the like, the attendance modes need attendance personnel to carry out attendance and attendance operation before special attendance equipment, when the attendance personnel leaves the post midway and then returns to the post, the corresponding operation needs to be carried out on the attendance equipment, the workload of the attendance personnel is undoubtedly increased, and the inaccurate attendance time calculation is easily caused by forgetting the attendance and the attendance.
The RFID attendance checking method is an attendance checking mode using a wireless radio frequency technology, can effectively solve the problem that attendance personnel need to be arranged in front of attendance checking equipment to check in and check out, and improves the attendance checking efficiency. The existing RFID attendance system generally enables attendance personnel to wear active RFID tags, a plurality of active RFID readers are covered in an office area, all the active RFID tags are wakened up in a broadcasting mode in a preset range through the active RFID readers, so that attendance authentication information on the tags is obtained to achieve the purpose of attendance checking, however, the active RFID tags are large in size, inconvenient to carry and high in cost, meanwhile, the method identifies attendance checking users through tag data, the condition of attendance checking cheating is difficult to effectively discriminate, and the method cannot be widely applied.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the distributed attendance method and system based on the RFID can realize efficient and accurate attendance of personnel and save attendance cost.
In order to solve the technical problems, the invention adopts the technical scheme that:
a distributed attendance checking method based on RFID comprises the following steps:
s1, the passive RFID reader identifies and records the communication time with the passive RFID label, and reads the data of the passive RFID label, the passive RFID label is corresponding to the object to be checked one by one;
s2, the passive RFID reader sends the communication time and the corresponding data of the passive RFID tag to an attendance checking host;
s3, the first camera and the second camera respectively shoot front face photo videos of an object to be checked in and out of an attendance checking channel, and the shot front face photo videos are sent to the attendance checking host;
s4, the attendance host determines an attendance record of the object to be checked according to the communication time of the passive RFID reader and the passive RFID tag, the corresponding data and the front face camera video, and sends the attendance record of the object to be checked to an attendance center;
the system comprises a plurality of attendance channels, wherein the passive RFID reader, the first camera and the second camera which are interconnected through a local area network are respectively deployed in each attendance channel;
and S5, the attendance checking center calculates the attendance checking time of each object to be checked according to the attendance checking record of each object to be checked.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
the distributed attendance system based on the RFID comprises an attendance center and a plurality of attendance sub-centers, wherein the attendance sub-centers comprise passive RFID readers, first cameras, second cameras and attendance hosts, the passive RFID readers, the first cameras, the second cameras and the attendance hosts are interconnected through a local area network, the attendance sub-centers comprise a plurality of attendance channels, the passive RFID readers, the first cameras and the second cameras are respectively deployed in the attendance channels, each passive RFID reader comprises a first memory, a first processor and a first computer program which is stored in the first memory and can run on the first processor, each passive RFID reader comprises a second memory, a second processor and a second computer program which is stored in the second memory and can run on the second processor, and each passive RFID reader comprises a second memory, a second processor and a third memory, A third processor and a third computer program stored on a third memory and executable on the third processor, the attendance host including a fourth memory, a fourth processor and a fourth computer program stored on a fourth memory and executable on the fourth processor, the attendance center including a fifth memory, a fifth processor and a fifth computer program stored on a fifth memory and executable on the fifth processor, the first processor implementing the following steps when executing the first computer program:
s1, identifying and recording the communication time with the passive RFID tags, and reading the data of the passive RFID tags, wherein the passive RFID tags correspond to the objects to be checked one by one;
s2, sending the communication time and the corresponding data of the passive RFID tag to an attendance host;
the second processor, when executing the second computer program, implements the steps of:
s31, shooting a front face photograph video of the object to be checked entering an attendance checking channel, and sending the shot front face photograph video to the attendance checking host;
the third processor, when executing the third computer program, performs the steps of:
s32, shooting a front face photographing video of an object to be checked in an attendance checking channel, and sending the shot front face photographing video to the attendance checking host;
said fourth processor, when executing said fourth computer program, implements the steps of:
s4, determining an attendance record of the object to be checked according to the communication time of the passive RFID reader and the passive RFID tag, the corresponding data and the front face video, and sending the attendance record of the object to be checked to an attendance center;
the fifth processor, when executing the fifth computer program, implements the steps of:
and S5, calculating the attendance time of each object to be checked according to the attendance record of each object to be checked.
The invention has the beneficial effects that: the passive RFID reader identifies and records the communication time of the passive RFID tag, reads the data of the object to be checked corresponding to the passive RFID tag, the first camera or the second camera respectively shoots the face-to-face photograph video of the object to be checked entering and exiting the attendance channel, the attendance host determines the attendance record of the object to be checked according to the communication time of the passive RFID tag, the data corresponding to the communication time of the passive RFID tag and the face-to-face photograph video, and the attendance center calculates the attendance time of the object to be checked according to the attendance record. Because the passive RFID tag has low cost and is convenient to carry, the attendance system is triggered by the passive RFID tag which is identified by the passive RFID reader, the cost of the attendance system can be effectively reduced, because the video contents shot by the first camera and the second camera are different, the attendance host can distinguish different attendance types according to the positive face-shot videos shot by different cameras, and meanwhile, the attendance record of the object to be checked is determined based on the communication time and the corresponding data of the passive RFID reader and the passive RFID tag and the positive face-shot videos, the accuracy of the attendance record can be effectively ensured, the attendance center calculates the attendance time according to the attendance record of each object to be checked uploaded by the attendance host, the distributed calculation is realized, the bottleneck problem of a single storage server in the traditional centralized storage system is solved, the reliability of the system is improved, and simultaneously compared with the traditional mode of manually calculating the attendance time, the distributed computing improves the accuracy of the computing result while saving time, and in the whole attendance checking process, the object to be checked does not need to be checked in and checked out manually, and can be recorded accurately through the attendance checking channel, so that an efficient and non-sensitive attendance checking mode is realized.
Drawings
Fig. 1 is a flowchart illustrating steps of a distributed attendance checking method based on RFID according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a distributed attendance system based on RFID according to an embodiment of the present invention;
fig. 3 is a functional block diagram of a distributed attendance checking method based on RFID according to an embodiment of the present invention;
fig. 4 is a schematic layout diagram of a distributed attendance system based on RFID according to an embodiment of the present invention;
fig. 5 is a schematic diagram of camera deployment positions of a distributed attendance checking method based on RFID according to an embodiment of the present invention;
fig. 6 is a attendance flow chart of a distributed attendance method based on RFID in an embodiment of the present invention;
fig. 7 is a schematic diagram of data synchronization and calculation processes of an attendance center of a distributed attendance method based on RFID according to an embodiment of the present invention;
description of reference numerals:
1. a passive RFID reader; 2. a first memory; 3. a first processor; 4. a first camera; 5. a second memory; 6. a second processor; 7. a second camera; 8. a third memory; 9. a third processor; 10. an attendance checking host; 11. a fourth memory; 12. a fourth processor; 13. attendance checking center; 14. an attendance center; 15. a fifth memory; 16. a fifth processor; 17. a distributed attendance system based on RFID.
Detailed Description
In order to explain the technical contents, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a distributed attendance checking method based on RFID includes the steps of:
s1, the passive RFID reader identifies and records the communication time with the passive RFID label, and reads the data of the passive RFID label, the passive RFID label is corresponding to the object to be checked one by one;
s2, the passive RFID reader sends the communication time and the corresponding data of the passive RFID tag to an attendance checking host;
s3, the first camera and the second camera respectively shoot front face photo videos of an object to be checked in and out of an attendance checking channel, and the shot front face photo videos are sent to the attendance checking host;
s4, the attendance host determines the attendance record of the object to be checked according to the communication time between the passive RFID reader and the passive RFID tag, the corresponding data and the front face photographing video, and sends the attendance record of the object to be checked to an attendance center;
the system comprises a plurality of attendance channels, wherein the passive RFID reader, the first camera and the second camera which are interconnected through a local area network are respectively deployed in each attendance channel;
and S5, the attendance checking center calculates the attendance checking time of each object to be checked according to the attendance checking record of each object to be checked.
As can be seen from the above description, the beneficial effects of the present invention are: the passive RFID reader identifies and records the communication time of the passive RFID tag, reads the data of the object to be checked corresponding to the passive RFID tag, the first camera or the second camera respectively shoots the face-to-face photograph video of the object to be checked entering and exiting the attendance channel, the attendance host determines the attendance record of the object to be checked according to the communication time of the passive RFID tag, the data corresponding to the communication time of the passive RFID tag and the face-to-face photograph video, and the attendance center calculates the attendance time of the object to be checked according to the attendance record. Because the passive RFID tag has low cost and is convenient to carry, the attendance system is triggered by the passive RFID tag which is identified by the passive RFID reader, the cost of the attendance system can be effectively reduced, because the video contents shot by the first camera and the second camera are different, the attendance host can distinguish different attendance types according to the positive face-shot videos shot by different cameras, and meanwhile, the attendance record of the object to be checked is determined based on the communication time and the corresponding data of the passive RFID reader and the passive RFID tag and the positive face-shot videos, the accuracy of the attendance record can be effectively ensured, the attendance center calculates the attendance time according to the attendance record of each object to be checked uploaded by the attendance host, the distributed calculation is realized, the bottleneck problem of a single storage server in the traditional centralized storage system is solved, the reliability of the system is improved, and simultaneously compared with the traditional mode of manually calculating the attendance time, distributed computation improves the accuracy of the computation result while saving time, and in the whole attendance process, the object to be checked does not need to be checked in and checked out manually, and can be recorded accurately through the attendance channel, so that an efficient and non-sensible attendance mode is realized.
Further, in the step S1, the data of the passive RFID tag corresponds to the employee information of the object to be checked one by one, where the employee information includes an employee identifier and face information.
According to the description, the passive RFID tag data and the staff information of the object to be checked are correspondingly bound, when the attendance system is triggered by the passive RFID tag, the system can acquire the staff information of the object to be checked through the passive RFID tag data and verify the staff information, so that the attendance record of the corresponding object to be checked can be pertinently stored while the attendance cheating is prevented.
Further, the step S3 includes:
the first camera and the second camera are respectively arranged on two sides of the passive RFID reader and are respectively used for continuously shooting front face photo videos of objects to be checked in and out of the attendance checking channel, storing the shot front face photo videos into corresponding camera memories, and sending the shot front face photo videos to the attendance checking host.
According to the method, the first camera and the second camera are used for shooting the face-to-face video of the object to be checked, when the object to be checked passes through the passive RFID reader, the face-to-face video of the object to be checked is captured by the certain camera, different cameras correspond to different states of the attendance channels, and therefore the two cameras are deployed, the face-to-face video of the object to be checked is shot on two sides of the passive RFID reader, and the attendance type of the object to be checked is preliminarily judged by the attendance host.
Further, the step S4 includes:
s41, the attendance host determines an attendance type of an attendance record closest to the current communication time according to the employee identification of the data of the passive tag and the communication time, based on the attendance type, reads the front face video before and after the communication time of the corresponding camera, judges whether the face information can be identified in the front face video, if so, executes the step S42, if not, reads the corresponding front face video in the other camera, judges whether the face information can be identified in the front face video, if so, executes the step S42, otherwise, sets the attendance record as a suspicious attendance record, associates the suspicious attendance record with the corresponding video, and synchronizes to an attendance center;
s42, matching the recognized face information with the face information corresponding to the passive RFID tag data, if the matching results are consistent, executing the step S43, if the matching results are inconsistent, setting the attendance record as a suspicious attendance record, and associating the suspicious attendance record with the corresponding video and synchronizing the suspicious attendance record to an attendance center;
s43, identifying the movement direction of the object to be checked according to the front face video, judging whether the movement direction is abnormal or not, if not, determining the attendance type according to the movement direction, determining the attendance record according to the communication time of the passive RFID reader and the passive RFID tag, the corresponding data of the communication time and the attendance record and the attendance type, and synchronizing the attendance record to an attendance center, otherwise, setting the attendance record as a suspicious attendance record, and associating the suspicious attendance record with the corresponding video and synchronizing the suspicious attendance record to the attendance center.
According to the description, the attendance host machine can achieve the purpose of preliminarily judging the attendance type of the object to be checked by acquiring and identifying the front face image in the corresponding camera, meanwhile, by means of a face recognition technology, the face information in the video is matched with the face information corresponding to the passive RFID label data, the condition of attendance cheating is effectively avoided, in addition, the accuracy of attendance type recognition is improved by further identifying the motion direction of the object to be checked in the front face image, the correctness of attendance data is guaranteed, the storage of suspicious attendance records is realized, the interference of invalid attendance records on system judgment is effectively prevented, the attendance records are synchronized to an attendance center, the distributed data storage is realized, and the reliability of the system is improved.
Further, the step S5 includes:
and the attendance center calculates the total attendance time of the corresponding object to be checked on the same day according to the data of the passive RFID tag, the attendance type and the communication time in the attendance record, and checks the suspicious attendance record and the video corresponding to the suspicious attendance record.
According to the method, the attendance time is calculated by the attendance center according to the attendance records of the objects to be checked uploaded by the attendance host, distributed calculation is achieved, the bottleneck problem of a single storage server in a traditional centralized storage system is solved, meanwhile, compared with the traditional mode of manually calculating the attendance time, the accuracy of a calculation result is improved while the time is saved by the distributed calculation, in addition, suspicious attendance records and videos corresponding to the suspicious attendance records are checked by the attendance center, undetected attendance data can be prevented from being omitted due to limitation of the system, and the accuracy of attendance record identification is further improved.
Referring to fig. 2, a distributed attendance system based on RFID includes an attendance center and a plurality of attendance sub-centers, where the attendance sub-centers include a passive RFID reader, a first camera, a second camera, and an attendance host, the passive RFID reader, the first camera, the second camera, and the attendance host are interconnected via a local area network, the attendance sub-center includes a plurality of attendance channels, each attendance channel is respectively disposed with the passive RFID reader, the first camera, and the second camera, the passive RFID reader includes a first memory, a first processor, and a first computer program stored in the first memory and operable on the first processor, the first camera includes a second memory, a second processor, and a second computer program stored in the second memory and operable on the second processor, and the second camera includes a third memory, A third processor and a third computer program stored on the third memory and operable on the third processor, the attendance host including a fourth memory, a fourth processor and a fourth computer program stored on the fourth memory and operable on the fourth processor, the attendance center including a fifth memory, a fifth processor and a fifth computer program stored on the fifth memory and operable on the fifth processor, the first processor implementing the following steps when executing the first computer program:
s1, identifying and recording the communication time with the passive RFID tags, and reading the data of the passive RFID tags, wherein the passive RFID tags correspond to the objects to be checked one by one;
s2, sending the communication time and the corresponding data of the passive RFID tag to an attendance checking host;
the second processor, when executing the second computer program, implements the steps of:
s31, shooting a front face photograph video of the object to be checked entering the attendance checking channel, and sending the shot front face photograph video to the attendance checking host;
the third processor, when executing the third computer program, implements the steps of:
s32, shooting a front face photographing video of an object to be checked in an attendance checking channel, and sending the shot front face photographing video to the attendance checking host;
the fourth processor, when executing the fourth computer program, implements the steps of:
s4, determining an attendance record of the object to be checked according to the communication time of the passive RFID reader and the passive RFID tag, the corresponding data and the front face video, and sending the attendance record of the object to be checked to an attendance center;
the fifth processor, when executing the fifth computer program, implements the steps of:
and S5, calculating the attendance time of each object to be checked according to the attendance record of each object to be checked.
As can be seen from the above description, the beneficial effects of the present invention are: the passive RFID reader identifies and records the communication time of the passive RFID tag, reads the data of the object to be checked corresponding to the passive RFID tag, the first camera or the second camera respectively shoots the face-to-face photograph video of the object to be checked entering and exiting the attendance channel, the attendance host determines the attendance record of the object to be checked according to the communication time of the passive RFID tag, the data corresponding to the communication time of the passive RFID tag and the face-to-face photograph video, and the attendance center calculates the attendance time of the object to be checked according to the attendance record. Because the passive RFID tag has low cost and is convenient to carry, the passive RFID tag is identified by the passive RFID reader to trigger the attendance system, the cost of the attendance system can be effectively reduced, because the video contents shot by the first camera and the second camera are different, the attendance host can distinguish different attendance types according to the face-up videos shot by different cameras, meanwhile, the attendance record of the object to be checked is determined based on the communication time and the corresponding data of the passive RFID reader and the passive RFID tag as well as the face-up videos, the accuracy of the attendance record can be effectively ensured, the attendance center calculates the attendance time according to the attendance record of each object to be checked uploaded by the attendance host, the distributed calculation is realized, the bottleneck problem of a single storage server in the traditional centralized storage system is solved, the reliability of the system is improved, and simultaneously compared with the traditional mode of manually calculating the attendance time, distributed computation improves the accuracy of the computation result while saving time, and in the whole attendance process, the object to be checked does not need to be checked in and checked out manually, and can be recorded accurately through the attendance channel, so that an efficient and non-sensible attendance mode is realized.
Further, in step S1, the data of the passive RFID tag corresponds to employee information of the object to be checked, where the employee information includes an employee identifier and face information.
According to the description, the passive RFID tag data and the staff information of the object to be checked are correspondingly bound, when the attendance system is triggered by the passive RFID tag, the system can acquire the staff information of the object to be checked through the passive RFID tag data and verify the staff information, so that attendance cheating is prevented, and meanwhile, the attendance record of the corresponding object to be checked can be stored in a targeted manner.
Further, the step S3 includes:
the first camera and the second camera are respectively deployed on two sides of the passive RFID reader and are respectively used for continuously shooting front face images of objects to be checked in and out of the attendance checking channel, storing the shot front face images into corresponding camera memories, and sending the shot front face images to the attendance checking host.
According to the description, the front face of the object to be checked is photographed by the first camera and the second camera, when the object to be checked passes through the passive RFID reader, the front face of the object to be checked is captured by the certain camera, the different cameras correspond to different states of entering and exiting the attendance channel, and therefore the front face of the object to be checked is photographed by the two cameras on the two sides of the passive RFID reader, so that the attendance type of the object to be checked is favorably preliminarily judged by the attendance host.
Further, the step S4 includes:
s41, determining an attendance type of an attendance record closest to the current communication time according to the employee identification of the data of the passive tag and the communication time, reading front face videos of corresponding cameras before and after the communication time based on the attendance type, judging whether face information can be recognized in the front face videos, executing S42 if the face information can be recognized in the front face videos, reading a corresponding front face video in another camera if the face information can not be recognized in the front face videos, executing S42 if the face information can not be recognized in the front face videos, and otherwise, setting the attendance record as a suspicious attendance record, associating the suspicious attendance record with the corresponding video and synchronizing the suspicious attendance record to an attendance center;
s42, matching the recognized face information with the face information corresponding to the passive RFID tag data, if the matching results are consistent, executing the step S43, if the matching results are inconsistent, setting the attendance record as a suspicious attendance record, and associating the suspicious attendance record with the corresponding video and synchronizing the suspicious attendance record to an attendance center;
s43, identifying the movement direction of the object to be checked according to the front face video, judging whether the movement direction is abnormal or not, if not, determining the attendance type according to the movement direction, determining the attendance record according to the communication time of the passive RFID reader and the passive RFID tag, the corresponding data of the communication time and the attendance record and the attendance type, and synchronizing the attendance record to an attendance center, otherwise, setting the attendance record as a suspicious attendance record, and associating the suspicious attendance record with the corresponding video and synchronizing the suspicious attendance record to the attendance center.
According to the description, the attendance host machine can achieve the purpose of preliminarily judging the attendance type of the object to be checked by acquiring and identifying the front face image in the corresponding camera, meanwhile, by means of a face recognition technology, the face information in the video is matched with the face information corresponding to the passive RFID label data, the condition of attendance cheating is effectively avoided, in addition, the accuracy of attendance type recognition is improved by further identifying the motion direction of the object to be checked in the front face image, the correctness of attendance data is guaranteed, the storage of suspicious attendance records is realized, the interference of invalid attendance records on system judgment is effectively prevented, the attendance records are synchronized to an attendance center, the distributed data storage is realized, and the reliability of the system is improved.
Further, the step S5 includes:
and calculating the total attendance time of the corresponding object to be checked on the same day according to the data of the passive RFID tag in the attendance record, the attendance type and the communication time, and auditing the suspicious attendance record and the video corresponding to the suspicious attendance record.
According to the method, the attendance time is calculated by the attendance center according to the attendance records of the objects to be checked uploaded by the attendance host, distributed calculation is achieved, the bottleneck problem of a single storage server in a traditional centralized storage system is solved, meanwhile, compared with the traditional mode of manually calculating the attendance time, the accuracy of a calculation result is improved while the time is saved by the distributed calculation, in addition, suspicious attendance records and videos corresponding to the suspicious attendance records are checked by the attendance center, undetected attendance data can be prevented from being omitted due to limitation of the system, and the accuracy of attendance record identification is further improved.
Example one
Referring to fig. 1, a distributed attendance checking method based on RFID specifically includes the steps of:
s1, recognizing and recording the communication time with a passive RFID tag by a passive RFID reader, and reading the data of the passive RFID tag, wherein the passive RFID tag corresponds to the object to be checked one by one;
specifically, the distributed attendance method based on the RFID can be applied to company attendance, specifically, as shown in a functional module diagram of the distributed attendance method based on the RFID in fig. 3, in the embodiment, a passive RFID reader with a radio frequency coverage range of 80cm to 100cm is selected, the passive RFID reader is deployed in the middle of an attendance passage and is slightly higher than the height of an object to be checked by 20cm, the object to be checked carries a passive RFID tag, and the passive RFID reader triggers a radio frequency communication unit module in the passive RFID reader to realize data communication, identifies the passive RFID tag, records the communication time t0 with the passive RFID tag, and reads data of the passive RFID tag.
Specifically, in step S1, the data of the passive RFID tag corresponds to employee information of the object to be checked, where the employee information includes an employee identifier and face information.
Specifically, the correspondence is stored in a personnel management module in the attendance center, and the entry of the employee information of the object to be checked by the attendance center includes: basic information, passive RFID tag data, face information.
S2, the passive RFID reader sends the communication time and the corresponding data of the passive RFID tag to an attendance checking host;
specifically, the passive RFID reader is communicated with the RFID communication unit module of the attendance host in the attendance sub-center through the network communication unit module, and sends the communication time and corresponding data of the passive RFID tag to the attendance host.
S3, the first camera and the second camera respectively shoot front face photo videos of an object to be checked in and out of an attendance checking channel, and the shot front face photo videos are sent to the attendance checking host;
specifically, the step S3 includes:
the first camera and the second camera are respectively arranged on two sides of the passive RFID reader and are respectively used for continuously shooting front face photo videos of objects to be checked in and out of the attendance checking channel, storing the shot front face photo videos into corresponding camera memories, and sending the shot front face photo videos to the attendance checking host.
Specifically, a first camera and a second camera are arranged on two sides of a passive RFID reader, the passive RFID reader is obliquely and downwards installed at a distance of about 150cm and slightly higher than the passive RFID reader by 10cm, the first camera and the second camera respectively monitor and record videos on the passive RFID reader in opposite directions, the first camera shoots a positive face-lighting video of an object to be checked entering an attendance checking channel, the second camera shoots a positive face-lighting video of the object to be checked leaving the attendance checking channel, as shown in a schematic diagram of the camera arrangement position in fig. 4, the first camera and the second camera continuously shoot video images, the control of the passive RFID reader and an attendance checking host is avoided, the shot positive face-lighting video is stored into a corresponding camera storage device, and the shot positive face-lighting video is sent to the attendance checking host.
S4, the attendance host determines the attendance record of the object to be checked according to the communication time between the passive RFID reader and the passive RFID tag, the corresponding data and the front face photographing video, and sends the attendance record of the object to be checked to an attendance center;
the system comprises a plurality of attendance channels, wherein the passive RFID reader, a first camera and a second camera which are interconnected through a local area network are respectively deployed in each attendance channel;
specifically, for each attendance channel, the passive RFID reader, the first camera and the second camera are respectively connected to the local area network of the attendance sub-center, and are connected to the attendance host and the database of the attendance sub-center, as shown in the schematic layout diagram of the RFID-based distributed attendance system in fig. 5.
Specifically, the step S4 includes:
s41, the attendance host determines an attendance type of an attendance record closest to the current communication time according to the employee identification of the data of the passive tag and the communication time, based on the attendance type, reads the front face video before and after the communication time of the corresponding camera, judges whether the face information can be identified in the front face video, if so, executes the step S42, if not, reads the corresponding front face video in the other camera, judges whether the face information can be identified in the front face video, if so, executes the step S42, otherwise, sets the attendance record as a suspicious attendance record, associates the suspicious attendance record with the corresponding video, and synchronizes to an attendance center;
specifically, an attendance center and an attendance sub-center are connected through the internet by utilizing a network technology, through data synchronization, employee information and corresponding attendance records are synchronized to the attendance sub-center through a data synchronization module of the attendance center, an attendance host reads employee identification in data of a passive RFID label, acquires the attendance records of a corresponding object to be checked before the time t0 according to the employee identification, reads the attendance type of an attendance record closest to the time t0, and if the attendance type of the closest attendance record is sign-off, the attendance type of the object to be checked which triggers an attendance system at this time is sign-on, acquires a frontal face video shot by a first camera, and if the time for the object to be checked to reach the passive RFID reader from an attendance channel entrance is delta t, reads [ t 0-delta t ] in the first camera, and (4) judging whether the face information can be identified in the front-face video clip in the time period of t0 plus delta t by using a face identification technology in a video image identification unit module, and executing step S42 if the face information can be identified.
S42, matching the recognized face information with the face information corresponding to the passive RFID tag data, if the matching results are consistent, executing the step S43, if the matching results are inconsistent, setting the attendance record as a suspicious attendance record, and associating the suspicious attendance record with the corresponding video and synchronizing the suspicious attendance record to an attendance center;
specifically, the attendance host reads the corresponding face information of the object to be checked, which is stored in the attendance host in the passive RFID tag and is obtained by synchronization from the attendance center, and matches the face information with the face information recognized in step S41, and if the matching result is consistent, step S43 is executed.
S43, identifying the movement direction of the object to be checked according to the front face video, judging whether the movement direction is abnormal or not, if not, determining the attendance type according to the movement direction, determining the attendance record according to the communication time of the passive RFID reader and the passive RFID tag, the corresponding data of the communication time and the attendance record and the attendance type, and synchronizing the attendance record to an attendance center, otherwise, setting the attendance record as a suspicious attendance record, and associating the suspicious attendance record with the corresponding video and synchronizing the suspicious attendance record to the attendance center.
Specifically, a front face photograph video segment within a time period of [ t0- Δ t, t0+ [ Δ t ] in the first camera is read, the moving direction of the object to be checked is identified as entering an attendance channel, therefore, the attendance type of the object to be checked is determined as check-in, the attendance record is stored in the database, and the attendance record information comprises: the attendance checking system comprises staff identification, attendance checking time, attendance checking types and attendance checking states of an object to be checked, an attendance checking host machine and an attendance checking center are interconnected through the Internet, the attendance checking host machine utilizes a data synchronization module to synchronize attendance checking records to the attendance checking center through the Internet, and the figure 6 is a flow chart of RFID attendance checking.
And S5, the attendance center calculates the attendance time of each object to be checked according to the attendance record of each object to be checked.
Specifically, the step S5 includes:
and the attendance center calculates the total attendance time of the corresponding object to be checked on the same day according to the data of the passive RFID tag, the attendance type and the communication time in the attendance record, and checks the suspicious attendance record and the video corresponding to the suspicious attendance record.
Specifically, the attendance time of an object to be checked is calculated in an attendance management module of an attendance center, the total attendance time of the object to be checked on the same day is generated by accumulating and calculating two attendance records which are adjacent in time and opposite in attendance type, the total attendance time of the object to be checked on a certain day is 7 hours in 11 months and 20 days, simultaneously, a manager checks suspicious attendance records stored in the attendance center and videos corresponding to the suspicious attendance records, manually adds the suspicious attendance records which are normal after the checking, and the attendance center recalculates the attendance time of the corresponding object to be checked on the same day, assuming that the attendance records of the object to be checked on a certain day are shown in a data synchronization and calculation process schematic diagram of the attendance center in fig. 7.
Example two
Referring to fig. 2, a distributed attendance system 17 based on RFID, the system 17 including an attendance center 14 and a plurality of attendance checking centers 13, the attendance checking centers 13 including a passive RFID reader 1, a first camera 4, a second camera 7 and an attendance checking host 10, the passive RFID reader 1, the first camera 4, the second camera 7 and the attendance checking host 10 being interconnected via a local area network, the attendance checking centers 13 including a plurality of attendance checking channels, the passive RFID reader 1, the first camera 4 and the second camera 7 being respectively disposed in each attendance checking channel, the passive RFID reader 1 including a first memory 2, a first processor 3 and a first computer program stored in the first memory 2 and operable on the first processor 3, the first camera 4 including a second memory 5, a second processor 6 and a second computer program stored in the second memory 5 and operable on the second processor 6, the second camera 7 includes a third memory 8, a third processor 9 and a third computer program stored on the third memory 8 and operable on the third processor 9, the attendance host 10 includes a fourth memory 11, a fourth processor 12 and a fourth computer program stored on the fourth memory 11 and operable on the fourth processor 12, the attendance center 14 includes a fifth memory 15, a fifth processor 16 and a fifth computer program stored on the fifth memory 15 and operable on the fifth processor 16, and the processors implement the steps of one of the embodiments when executing the computer programs.
In conclusion, according to the distributed attendance method and system based on RFID, the characteristics of low cost and convenience in carrying of the passive RFID tag are utilized, the attendance system is triggered through the passive RFID tag, the cost of the attendance system is effectively reduced, meanwhile, the cameras and the passive RFID readers are arranged in the plurality of attendance channels, the problems that the passive RFID identification range is small and the office space area is large are solved, the object to be checked does not need to be checked in and checked out manually, the object to be checked in and checked out can be recorded accurately through the attendance channels, and an efficient and non-inductive attendance mode is realized. The object to be checked is carried with a passive RFID label to pass through an attendance channel, the front face video of the object to be checked, which is shot by a first camera or a second camera, is recognized to assist in recognizing the moving direction of the object to be checked in the front face video, the attendance type of the object to be checked is determined, the accuracy of attendance type recognition is improved, meanwhile, the face recognition technology is utilized to match the face information recognized in the front face video with the face information corresponding to the data of the passive RFID label and stored in the system, the condition of attendance cheating is effectively prevented, moreover, suspicious attendance records which do not accord with the recognition condition are marked in the video recognition process, the interference of invalid attendance records on the system judgment is avoided, the system realizes the distributed attendance data synchronization in the whole attendance process, the attendance center synchronizes staff information to an attendance host, the attendance host synchronously uploads the attendance records to the attendance center, the attendance center calculates attendance time according to attendance records of all objects to be checked, distributed calculation is completed, the bottleneck problem of a single storage server in a traditional centralized storage system is solved, the reliability of the system is improved, compared with the traditional mode of manually calculating the attendance time, the distributed calculation saves time and improves the accuracy of calculation results, meanwhile, the attendance center also checks suspicious attendance records and corresponding videos thereof, undetected attendance data can be effectively prevented from being omitted due to limitation of the system, and the accuracy of attendance record identification is further improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. A distributed attendance checking method based on RFID is characterized by comprising the following steps:
s1, recognizing and recording the communication time with a passive RFID tag by a passive RFID reader, and reading the data of the passive RFID tag, wherein the passive RFID tag corresponds to the object to be checked one by one;
s2, the passive RFID reader sends the communication time and the corresponding data of the passive RFID tag to an attendance host;
s3, the first camera and the second camera respectively shoot front face photography videos of an object to be checked in and out of the checking-in channel, and the shot front face photography videos are sent to the checking-in host;
s4, the attendance host determines an attendance record of the object to be checked according to the communication time of the passive RFID reader and the passive RFID tag, the corresponding data and the front face camera video, and sends the attendance record of the object to be checked to an attendance center;
the step S4 includes:
s41, the attendance host determines an attendance type of an attendance record closest to the current communication time according to the employee identification of the data of the passive tag and the communication time, based on the attendance type, reads the front face video before and after the communication time of the corresponding camera, judges whether the face information can be identified in the front face video, if so, executes the step S42, if not, reads the corresponding front face video in the other camera, judges whether the face information can be identified in the front face video, if so, executes the step S42, otherwise, sets the attendance record as a suspicious attendance record, associates the suspicious attendance record with the corresponding video, and synchronizes to an attendance center;
s42, matching the recognized face information with the face information corresponding to the passive RFID label data, if the matching result is consistent, executing the step S43, if the matching result is inconsistent, setting the attendance record as a suspicious attendance record, and associating the suspicious attendance record with the corresponding video and synchronizing the suspicious attendance record to an attendance center;
s43, identifying the movement direction of an object to be checked according to the frontal facial photography video, judging whether the movement direction is abnormal or not, if not, determining an attendance type according to the movement direction, determining an attendance record according to the communication time of a passive RFID reader and the passive RFID tag, data corresponding to the communication time and the attendance record, and synchronizing the attendance record to an attendance center, otherwise, setting the attendance record as a suspicious attendance record, associating the suspicious attendance record with a corresponding video and synchronizing the suspicious attendance record to the attendance center, wherein the frontal facial photography video is a frontal facial video segment within a preset time period;
the system comprises a plurality of attendance channels, wherein the passive RFID reader, a first camera and a second camera which are interconnected through a local area network are respectively deployed in each attendance channel;
and S5, the attendance checking center calculates the attendance checking time of each object to be checked according to the attendance checking record of each object to be checked.
2. The RFID-based distributed attendance method according to claim 1, wherein in step S1, the data of the passive RFID tag corresponds to employee information of the object to be checked, the employee information including employee identification and face information.
3. The RFID-based distributed attendance method according to claim 1, wherein the step S3 comprises:
the first camera and the second camera are respectively deployed on two sides of the passive RFID reader and are respectively used for continuously shooting front face images of objects to be checked in and out of the attendance checking channel, storing the shot front face images into corresponding camera memories, and sending the shot front face images to the attendance checking host.
4. The RFID-based distributed attendance method according to claim 1, wherein the step S5 includes:
and the attendance center calculates the total attendance time of the corresponding object to be checked on the same day according to the data of the passive RFID tag, the attendance type and the communication time in the attendance record, and audits the suspicious attendance record and the video corresponding to the suspicious attendance record.
5. The distributed attendance system based on the RFID comprises an attendance center and a plurality of attendance sub-centers, wherein the attendance sub-centers comprise passive RFID readers, first cameras, second cameras and attendance hosts, the passive RFID readers, the first cameras, the second cameras and the attendance hosts are interconnected through a local area network, the attendance sub-centers comprise a plurality of attendance channels, the passive RFID readers, the first cameras and the second cameras are respectively deployed in the attendance channels, each passive RFID reader comprises a first memory, a first processor and a first computer program which is stored in the first memory and can run on the first processor, each passive RFID reader comprises a second memory, a second processor and a second computer program which is stored in the second memory and can run on the second processor, and each passive RFID reader comprises a second memory, a second processor and a third memory, A third processor and a third computer program stored on a third memory and executable on the third processor, the attendance host including a fourth memory, a fourth processor and a fourth computer program stored on a fourth memory and executable on the fourth processor, the attendance center including a fifth memory, a fifth processor and a fifth computer program stored on a fifth memory and executable on the fifth processor, wherein the first processor implements the following steps when executing the first computer program:
s1, identifying and recording the communication time with the passive RFID tags, and reading the data of the passive RFID tags, wherein the passive RFID tags correspond to the objects to be checked one by one;
s2, sending the communication time and the corresponding data of the passive RFID tag to an attendance host;
the second processor, when executing the second computer program, implements the steps of:
s31, shooting a front face photograph video of the object to be checked entering the attendance checking channel, and sending the shot front face photograph video to the attendance checking host;
the third processor, when executing the third computer program, implements the steps of:
s32, shooting a front face photographing video of an object to be checked in an attendance checking channel, and sending the shot front face photographing video to the attendance checking host;
the fourth processor, when executing the fourth computer program, implements the steps of:
s4, determining an attendance record of the object to be checked according to the communication time of the passive RFID reader and the passive RFID tag, the corresponding data and the front face video, and sending the attendance record of the object to be checked to an attendance center;
the step S4 includes:
s41, determining an attendance type of an attendance record closest to the current communication time according to the employee identification of the data of the passive tag and the communication time, reading front face videos of corresponding cameras before and after the communication time based on the attendance type, judging whether face information can be recognized in the front face videos, if so, executing S42, if not, reading a corresponding front face video of another camera, judging whether face information can be recognized in the front face videos, if so, executing S42, otherwise, setting the attendance record as a suspicious attendance record, associating the suspicious attendance record with the corresponding video, and synchronizing the suspicious attendance record to an attendance center;
s42, matching the recognized face information with the face information corresponding to the passive RFID tag data, if the matching results are consistent, executing the step S43, if the matching results are inconsistent, setting the attendance record as a suspicious attendance record, and associating the suspicious attendance record with the corresponding video and synchronizing the suspicious attendance record to an attendance center;
s43, identifying the movement direction of an object to be checked according to the front face video, judging whether the movement direction is abnormal or not, if not, determining an attendance type according to the movement direction, determining an attendance record according to the communication time of a passive RFID reader and the passive RFID tag, the corresponding data of the communication time and the attendance record, and synchronizing the attendance record to an attendance center, otherwise, setting the attendance record as a suspicious attendance record, associating the suspicious attendance record with the corresponding video and synchronizing the suspicious attendance record to the attendance center, wherein the front face video is a front face video segment in a preset time period;
the fifth processor, when executing the fifth computer program, implements the steps of:
and S5, calculating the attendance time of each object to be checked according to the attendance record of each object to be checked.
6. The RFID-based distributed attendance system of claim 5 wherein in step S1, the data of the passive RFID tag corresponds to employee information of the object to be checked, the employee information including employee identification and face information.
7. The RFID-based distributed attendance system of claim 5, wherein the step S3 comprises:
the first camera and the second camera are respectively deployed on two sides of the passive RFID reader and are respectively used for continuously shooting front face images of objects to be checked in and out of the attendance checking channel, storing the shot front face images into corresponding camera memories, and sending the shot front face images to the attendance checking host.
8. The RFID-based distributed attendance system of claim 5, wherein the step S5 comprises:
and calculating the total attendance time of the corresponding object to be checked according to the data, the attendance type and the communication time of the passive RFID tag in the attendance record, and auditing the suspicious attendance record and the video corresponding to the suspicious attendance record.
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