CN112926348A - Indoor attendance and volume detection system and method based on RFID - Google Patents
Indoor attendance and volume detection system and method based on RFID Download PDFInfo
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Abstract
The invention discloses an indoor attendance and volume detection system and method based on RFID, which comprises the following steps: the RFID tag module is used for transmitting signals to the periphery of the RFID tag every other first unit time; the ID binding module is used for binding the ID numbers corresponding to the RFID tags in the badges with the names of the students and the bedroom numbers to which the students belong; the data acquisition module corresponds the bedroom student through the RFID signal reader collection that sets up at each bedroom and whether the data condition of louing in bedroom and bedroom, then uploads the data of gathering to well accuse processing module at an interval. The invention can feed back whether students are in the dormitory or not and whether the dormitory is noisy or not in real time, effectively reduces the time of dormitory management personnel, and simultaneously improves the dormitory management effect of the dormitory management personnel on the dormitory.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an indoor attendance and volume detection system and method based on RFID.
Background
With the development of communication technology, the Radio Frequency Identification (RFID) technology has a wide application in the internet of things, and with the continuous progress of the technology, the price of an RFID electronic tag is continuously reduced, the data reading speed is faster, and the Identification range is wider, so that the technology becomes a part of daily life of people, and the active sensing distance of the RFID can reach more than 50 meters in an open environment.
The system school that lives in at present is more and more, and the scale of these schools is also bigger and more, and the quantity along with the bedroom is also more and more, constantly improves to the requirement of the management bedroom of the host management personnel, and every dormitory is patrolled and examined, need consume a large amount of manpowers and host management personnel's time, and it is not ideal to patrol and examine the effect, and the student's in the bedroom condition can't be confirmed in the inspection of not following bedroom, and the life and the rest time of student have been disturbed again in the inspection of following bedroom.
In view of the above, an indoor attendance and volume detection system and method based on RFID are needed, which can feed back whether students are in the bedroom and whether the bedroom is noisy or not in real time, effectively reduce the time of dormitory managers, and improve the management effect of dormitory managers on the bedroom.
Disclosure of Invention
The invention aims to provide an indoor attendance and volume detection system and method based on RFID (radio frequency identification) so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: an indoor attendance and volume detection system and method based on RFID comprises the following steps:
the RFID tag module is used for transmitting signals to the periphery of the RFID tag every other first unit time;
the ID binding module is used for binding the ID numbers corresponding to the RFID tags in the badges with the names of the students and the bedroom numbers to which the students belong;
the data acquisition module acquires data conditions of whether a student in each bedroom is asleep and whether the student in each bedroom is noisy through the RFID signal readers arranged in the bedrooms, and then uploads the acquired data to the central control processing module at intervals, wherein the RFID signal readers arranged in the bedrooms have different and unique numbers and are bound with the bedrooms;
the central control processing module is used for receiving the data acquired by the data acquisition module and analyzing and judging the data;
and the alarm module is used for receiving the analysis and judgment result of the central control processing module on the data, and giving an alarm when the student is not in a bedroom or is noisy.
The invention realizes the detection of whether a student is in a bedroom or not and whether the student is noisy or not through the cooperative work of all modules, the ID number corresponding to the RFID tag in the badge is bound with the name of the student and the number of the bedroom to which the student belongs through the ID binding module, then the RFID tag in the RFID tag module transmits signals to the periphery, then the data acquisition module acquires the signals through the RFID signal reader arranged in each bedroom and performs simple processing, then the central control processing module performs specific analysis and judgment on the acquired data, and finally the alarm module judges whether to alarm or not according to the specific analysis result of the central control processing module.
Further, the RFID tag module further comprises a bedroom volume amplitude acquisition module, the bedroom volume amplitude acquisition module acquires the volume amplitude of the surrounding environment once every second unit time through a microphone on the badge, the bedroom volume amplitude acquisition module transmits the volume amplitude of the surrounding environment acquired each time to the RFID tag module,
the RFID tag module transmits signals to the surroundings once every first unit time, the first unit time is longer than the second unit time, the first unit time and the second unit time can be adjusted,
the signal content transmitted by the RFID tag module is the ID number of the RFID tag and the latest ambient volume amplitude data acquired by the bedroom volume amplitude acquisition module in the RFID tag module.
The reason why the first unit time is limited to be longer than the second unit time in the RFID tag module of the present invention is to prevent that the latest ambient sound volume amplitude data included in two adjacent signals is the same data acquired by the bedroom sound volume amplitude acquiring module when the RFID tag module transmits a signal to the surroundings, so that the detection of the degree of the bedroom noise is relatively inaccurate. The smaller the values of the first unit time and the second unit time are, the higher the frequency of the signal transmitted by the RFID tag module is, and the truer the data is.
Further, the data acquisition module comprises a working mode and a sleep mode,
in the working mode, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire the signal data transmitted by the RFID tag module once every third unit time,
in the sleep mode, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire signal data transmitted by the RFID tag module once every fourth unit time,
the RFID signal reader is bound with each bedroom and the corresponding RFID label ID number of the bedroom,
the third unit time is longer than the fourth unit time, the data acquisition module transmits the acquired data, the RFID signal reader number and the current time to the central control processing module every fifth unit time, the transmitted acquired data is the data acquired by the data acquisition module in the interval time of two transmissions,
when the data acquisition module does not acquire data, the data acquisition module only transmits the serial number of the RFID signal reader and the current time to the central control processing module,
the third unit time, the fourth unit time and the fifth unit time are all adjustable.
The dormant mode of the data acquisition module is mainly used for detecting whether a student in a corresponding bedroom is asleep, if the student is asleep, the data acquisition module is switched to the working mode, if the student is not in the bedroom, the dormant mode is continuously kept, compared with the working mode, the dormant mode can reduce the burden of the data acquisition module and save energy, when the data acquisition module does not acquire data, the data acquisition module still transmits the serial number of an RFID signal reader and the current time to a central control processing module, so as to confirm whether the RFID signal reader in the data acquisition module acquires the data, and when the RFID signal reader in the data acquisition module is damaged, a hostage manager can quickly lock the damaged RFID signal reader according to the serial number of the RFID signal reader.
Further, the central control processing module receives the data transmitted by the data acquisition module,
the central control processing module calculates the average value of all sound volume values in the data, simultaneously matches all RFID label ID number values in the data with the corresponding RFID label ID number values, wherein the corresponding RFID label ID number values are all RFID label ID number values under the condition that all students are in a bedroom and the data are successfully collected,
if the ID number values of the RFID tags are not successfully matched, the student is not in the bedroom,
if the ID number values of the RFID tags are successfully matched, the student in the bedroom compares the sound volume values in the data with a threshold value, wherein the threshold value is the larger value of the average value of all the sound volume values in the received data and the preset value of the central control processing module,
when the sound volume value is smaller than the threshold value, the bedroom environment is judged to be in a quiet state,
when the sound volume value is larger than or equal to the threshold value, the bedroom environment is judged to be in a loud state.
The control processing module analyzes the RFID tag ID number value and the sound volume value in the received data respectively, firstly screens students not in a bedroom to judge the sleeping condition of each student, and then compares the acquired sound volume value with a set threshold value aiming at the sleeping students to judge whether the bedroom to which each student belongs is loud.
Furthermore, the alarm module is used for receiving the analysis and judgment result of the central control processing module on the data,
the alarm module may also limit the monitoring period,
if the monitoring time is out, no matter how the received analysis and judgment result is, the alarm module does not give an alarm;
if during the monitoring period of time,
when the student is in the bedroom and the environment of the bedroom is judged to be in a quiet state, the alarm modules do not give an alarm,
when the student is not in the bedroom, the alarm module sends the name and the bedroom number of the student corresponding to the ID number of the RFID tag to a display end in the alarm module to remind the hostage manager that the student corresponding to the ID number of the RFID tag is not in the bedroom,
when the student bedroom environment is judged to be in a noisy state, the alarm module sends the student name and the bedroom number corresponding to the RFID tag ID number value to the display end in the alarm module, and the host management personnel is reminded that the bedroom corresponding to the RFID tag ID number value is noisy.
The alarm module limits the monitoring time period, avoids the condition that the student gives an alarm when not in a bedroom during the class break, is more reasonable, and simultaneously, in the monitoring time period, the student and the bedroom to which the student is bound through the ID number value of the RFID tag directly transmit the name of the student not in the bedroom or the name of the student in the bedroom and the bedroom to which the student belongs, which is noisy, to the display end of the alarm module to remind the housekeeper to manage, thereby effectively reducing the workload of the housekeeper and improving the management effect of the housekeeper on the bedroom.
An indoor attendance and volume detection method based on RFID comprises the following specific steps:
s1, acquiring the volume amplitude of the surrounding environment once every second unit time through a microphone on a badge through a bedroom volume amplitude acquisition module in the RFID tag module, transmitting the volume amplitude of the surrounding environment acquired every time to the RFID tag module through the bedroom volume amplitude acquisition module, transmitting a signal to the surrounding once every first unit time by the RFID tag module, wherein the signal content transmitted by the RFID tag module is the ID number of the RFID tag and the latest surrounding environment volume amplitude data acquired by the bedroom volume amplitude acquisition module in the RFID tag module;
s2, the data acquisition module comprises a working mode and a sleep mode,
when the working mode is adopted, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire signal data transmitted by the RFID tag module once every third unit time;
when in the sleep mode, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire the signal data transmitted by the RFID tag module once every fourth unit time,
the RFID signal reader is bound with each bedroom and the corresponding RFID label ID number of the bedroom,
the data acquisition module transmits the acquired data, the RFID signal reader number and the current time to the central control processing module every fifth unit time, the transmitted acquired data is the data acquired by the data acquisition module in the interval time of two transmissions,
when the data acquisition module acquires data, the data acquisition module only transmits the serial number of the RFID signal reader and the current time to the central control processing module;
s3, the central control processing module receives the data transmitted by the data acquisition module, matches all the RFID label ID number values in the data with the corresponding RFID label ID number values, wherein the corresponding RFID label ID number values are all the RFID label ID number values under the condition that all students are in the bedroom and the data are successfully acquired,
if the ID number values of the RFID tags are not successfully matched, the student is not in the bedroom,
if the ID number values of the RFID tags are successfully matched, the student compares the sound volume value in the data with the threshold value in the bedroom,
when the sound volume value is smaller than the threshold value, the bedroom environment is judged to be in a quiet state,
when the sound volume value is larger than or equal to the threshold value, the bedroom environment is judged to be in a loud state;
s4, the alarm module receives the analysis and judgment result of the central control processing module to the data, and limits the monitoring time period,
if the monitoring time is out, no matter how the received analysis and judgment result is, the alarm module does not give an alarm;
if during the monitoring period of time,
when the student is in the bedroom and the environment of the bedroom is judged to be in a quiet state, the alarm modules do not give an alarm,
when the student is not in the bedroom, the alarm module sends the name and the bedroom number of the student corresponding to the ID number of the RFID tag to a display end in the alarm module to remind the hostage manager that the student corresponding to the ID number of the RFID tag is not in the bedroom,
when the student bedroom environment is judged to be in a noisy state, the alarm module sends the student name and the bedroom number corresponding to the RFID tag ID number value to the display end in the alarm module, and the host management personnel is reminded that the bedroom corresponding to the RFID tag ID number value is noisy.
Further, when the step S2 is in the operation mode,
if the signal data transmitted by the RFID label is acquired, the data acquisition module can judge the ID number of the RFID label in the received data signal,
when the ID number of the RFID tag is the ID number bound with the bedroom RFID signal reader, the ID number of the RFID tag is a valid ID, the received ambient sound volume amplitude data is converted into a specific sound volume value,
when the ID number of the RFID tag is not the ID number bound with the bedroom RFID signal reader, the ID number of the RFID tag is an invalid ID, and the received volume amplitude data of the surrounding environment is not converted;
if the signal data transmitted by the RFID tag cannot be acquired, corresponding data processing is not carried out;
when the step S2 is in the sleep mode,
if the signal data transmitted by the RFID label is acquired, the data acquisition module can judge the ID number of the RFID label in the received data signal,
when the ID number of the RFID tag is the ID number bound with the bedroom RFID signal reader, the data acquisition module converts the working mode from the dormant mode to the working mode,
when the ID number of the RFID tag is not the ID number bound with the dormitory RFID signal reader, the data acquisition module continues to keep the sleep mode;
and if the signal data transmitted by the RFID tag cannot be acquired, the data acquisition module continues to keep the sleep mode.
When the data acquisition module is in a working mode, the data acquisition module judges according to the ID number of the RFID label in the received data signal, filters out invalid IDs and converts the volume amplitude data of the surrounding environment in the data signal corresponding to the valid IDs into a specific sound volume numerical value; and when the data acquisition module is in the sleep mode, only judging whether the RFID signal reader of the bedroom acquires the ID number of the RFID tag corresponding to the bedroom, if so, exiting the sleep mode and entering the working mode, and if not, continuously keeping the sleep mode.
Further, the first unit time is greater than the second unit time, the third unit time is greater than the fourth unit time, and the first unit time, the second unit time, the third unit time, the fourth unit time and the fifth unit time are all adjustable.
The smaller the first unit time and the second unit time are, the higher the frequency of a signal transmitted in the RFID tag module is, the more accurate the data is, the smaller the fifth unit time is, the higher the frequency of the data transmitted to the central control processing module by the data acquisition module is, and the faster the speed of the corresponding alarm module for feeding back the bedroom condition to the host and management personnel is.
Compared with the prior art, the invention has the following beneficial effects: the invention can feed back whether students are in the dormitory or not and whether the dormitory is noisy or not in real time, effectively reduces the time of dormitory management personnel, and simultaneously improves the dormitory management effect of the dormitory management personnel on the dormitory.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the components of the RFID-based indoor attendance and volume detection system of the present invention;
FIG. 2 is a schematic flow diagram of an RFID tag module of the RFID-based indoor attendance and volume detection system of the present invention;
FIG. 3 is a schematic flow diagram of a data acquisition module of the RFID-based indoor attendance and volume detection system of the present invention;
FIG. 4 is a schematic flow chart of a central control processing module of the RFID-based indoor attendance and volume detection system of the present invention;
fig. 5 is a schematic flow diagram of an alarm module of the system for checking attendance and volume indoors based on RFID.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides the following technical solutions: an indoor attendance and volume detection system and method based on RFID comprises the following steps:
the RFID tag module is used for transmitting signals to the periphery of the RFID tag every other first unit time;
the ID binding module is used for binding the ID numbers corresponding to the RFID tags in the badges with the names of the students and the bedroom numbers to which the students belong;
the data acquisition module acquires data conditions of whether a student in each bedroom is asleep and whether the student in each bedroom is noisy through the RFID signal readers arranged in the bedrooms, and then uploads the acquired data to the central control processing module at intervals, wherein the RFID signal readers arranged in the bedrooms have different and unique numbers and are bound with the bedrooms;
the central control processing module is used for receiving the data acquired by the data acquisition module and analyzing and judging the data;
and the alarm module is used for receiving the analysis and judgment result of the central control processing module on the data, and giving an alarm when the student is not in a bedroom or is noisy.
The invention realizes the detection of whether a student is in a bedroom or not and whether the student is noisy or not through the cooperative work of all modules, the ID number corresponding to the RFID tag in the badge is bound with the name of the student and the number of the bedroom to which the student belongs through the ID binding module, then the RFID tag in the RFID tag module transmits signals to the periphery, then the data acquisition module acquires the signals through the RFID signal reader arranged in each bedroom and performs simple processing, then the central control processing module performs specific analysis and judgment on the acquired data, and finally the alarm module judges whether to alarm or not according to the specific analysis result of the central control processing module.
The RFID tag module further comprises a bedroom volume amplitude acquisition module, the bedroom volume amplitude acquisition module acquires the volume amplitude of the surrounding environment once every second unit time through a microphone on the badge, the bedroom volume amplitude acquisition module transmits the volume amplitude of the surrounding environment acquired each time to the RFID tag module,
the RFID tag module transmits signals to the surroundings once every first unit time, the first unit time is longer than the second unit time, the first unit time and the second unit time can be adjusted,
the signal content transmitted by the RFID tag module is the ID number of the RFID tag and the latest ambient volume amplitude data acquired by the bedroom volume amplitude acquisition module in the RFID tag module.
The reason why the first unit time is limited to be longer than the second unit time in the RFID tag module of the present invention is to prevent that the latest ambient sound volume amplitude data included in two adjacent signals is the same data acquired by the bedroom sound volume amplitude acquiring module when the RFID tag module transmits a signal to the surroundings, so that the detection of the degree of the bedroom noise is relatively inaccurate. The smaller the values of the first unit time and the second unit time are, the higher the frequency of the signal transmitted by the RFID tag module is, and the truer the data is.
In this embodiment, if the first unit time is 2 seconds and the second unit time is 1.8 seconds, the bedroom volume amplitude obtaining module in the RFID tag module collects the volume amplitude of the surrounding environment every 1.8 seconds, transmits the collected volume amplitude of the surrounding environment to the RFID tag module, and then the RFID tag module transmits a signal to the surrounding environment every 2 seconds.
The data acquisition module comprises a working mode and a sleep mode,
in the working mode, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire the signal data transmitted by the RFID tag module once every third unit time,
in the sleep mode, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire signal data transmitted by the RFID tag module once every fourth unit time,
the RFID signal reader is bound with each bedroom and the corresponding RFID label ID number of the bedroom,
the third unit time is longer than the fourth unit time, the data acquisition module transmits the acquired data, the RFID signal reader number and the current time to the central control processing module every fifth unit time, the transmitted acquired data is the data acquired by the data acquisition module in the interval time of two transmissions,
when the data acquisition module does not acquire data, the data acquisition module only transmits the serial number of the RFID signal reader and the current time to the central control processing module,
the third unit time, the fourth unit time and the fifth unit time are all adjustable.
The dormant mode of the data acquisition module is mainly used for detecting whether a student in a corresponding bedroom is asleep, if the student is asleep, the data acquisition module is switched to the working mode, if the student is not in the bedroom, the dormant mode is continuously kept, compared with the working mode, the dormant mode can reduce the burden of the data acquisition module and save energy, when the data acquisition module does not acquire data, the data acquisition module still transmits the serial number of an RFID signal reader and the current time to a central control processing module, so as to confirm whether the RFID signal reader in the data acquisition module acquires the data, and when the RFID signal reader in the data acquisition module is damaged, a hostage manager can quickly lock the damaged RFID signal reader according to the serial number of the RFID signal reader.
In this embodiment, the third unit time is 2 seconds, the fourth unit time is 40 seconds, the fifth unit time is one minute, signal data transmitted by the RFID tag module is collected every 2 seconds in the working mode of the data collection module, signal data transmitted by the RFID tag module is collected every 40 seconds in the sleep mode of the data collection module, and the data collection module transmits data to the central control processing module every 60 seconds.
The central control processing module receives the data transmitted by the data acquisition module,
the central control processing module calculates the average value of all sound volume values in the data, simultaneously matches all RFID label ID number values in the data with the corresponding RFID label ID number values, wherein the corresponding RFID label ID number values are all RFID label ID number values under the condition that all students are in a bedroom and the data are successfully collected,
if the ID number values of the RFID tags are not successfully matched, the student is not in the bedroom,
if the ID number values of the RFID tags are successfully matched, the student in the bedroom compares the sound volume values in the data with a threshold value, wherein the threshold value is the larger value of the average value of all the sound volume values in the received data and the preset value of the central control processing module,
when the sound volume value is smaller than the threshold value, the bedroom environment is judged to be in a quiet state,
when the sound volume value is larger than or equal to the threshold value, the bedroom environment is judged to be in a loud state.
The control processing module analyzes the RFID tag ID number value and the sound volume value in the received data respectively, firstly screens students not in a bedroom to judge the sleeping condition of each student, and then compares the acquired sound volume value with a set threshold value aiming at the sleeping students to judge whether the bedroom to which each student belongs is loud.
In this embodiment, the preset value is 70 db, and when the average value of all the sound volume values in the received data is 40 db, the threshold value is 70 db,
when the average value of all the sound volume values in the received data is 75 decibels, the threshold value is 75 decibels.
The alarm module is used for receiving the analysis and judgment result of the central control processing module on the data,
the alarm module may also limit the monitoring period,
if the monitoring time is out, no matter how the received analysis and judgment result is, the alarm module does not give an alarm;
if during the monitoring period of time,
when the student is in the bedroom and the environment of the bedroom is judged to be in a quiet state, the alarm modules do not give an alarm,
when the student is not in the bedroom, the alarm module sends the name and the bedroom number of the student corresponding to the ID number of the RFID tag to a display end in the alarm module to remind the hostage manager that the student corresponding to the ID number of the RFID tag is not in the bedroom,
when the student bedroom environment is judged to be in a noisy state, the alarm module sends the student name and the bedroom number corresponding to the RFID tag ID number value to the display end in the alarm module, and the host management personnel is reminded that the bedroom corresponding to the RFID tag ID number value is noisy.
The alarm module limits the monitoring time period, avoids the condition that the student gives an alarm when not in a bedroom during the class break, is more reasonable, and simultaneously, in the monitoring time period, the student and the bedroom to which the student is bound through the ID number value of the RFID tag directly transmit the name of the student not in the bedroom or the name of the student in the bedroom and the bedroom to which the student belongs, which is noisy, to the display end of the alarm module to remind the housekeeper to manage, thereby effectively reducing the workload of the housekeeper and improving the management effect of the housekeeper on the bedroom.
In this embodiment, the monitoring time period is 00: 00 to 8: 30. 11: 30 to 13: 30 and 17: 30 to 24: 00.
an indoor attendance and volume detection method based on RFID comprises the following specific steps:
s1, acquiring the volume amplitude of the surrounding environment once every second unit time through a microphone on a badge through a bedroom volume amplitude acquisition module in the RFID tag module, transmitting the volume amplitude of the surrounding environment acquired every time to the RFID tag module through the bedroom volume amplitude acquisition module, transmitting a signal to the surrounding once every first unit time by the RFID tag module, wherein the signal content transmitted by the RFID tag module is the ID number of the RFID tag and the latest surrounding environment volume amplitude data acquired by the bedroom volume amplitude acquisition module in the RFID tag module;
s2, the data acquisition module comprises a working mode and a sleep mode,
when the working mode is adopted, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire signal data transmitted by the RFID tag module once every third unit time;
when in the sleep mode, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire the signal data transmitted by the RFID tag module once every fourth unit time,
the RFID signal reader is bound with each bedroom and the corresponding RFID label ID number of the bedroom,
the data acquisition module transmits the acquired data, the RFID signal reader number and the current time to the central control processing module every fifth unit time, the transmitted acquired data is the data acquired by the data acquisition module in the interval time of two transmissions,
when the data acquisition module acquires data, the data acquisition module only transmits the serial number of the RFID signal reader and the current time to the central control processing module;
s3, the central control processing module receives the data transmitted by the data acquisition module, matches all the RFID label ID number values in the data with the corresponding RFID label ID number values, wherein the corresponding RFID label ID number values are all the RFID label ID number values under the condition that all students are in the bedroom and the data are successfully acquired,
if the ID number values of the RFID tags are not successfully matched, the student is not in the bedroom,
if the ID number values of the RFID tags are successfully matched, the student compares the sound volume value in the data with the threshold value in the bedroom,
when the sound volume value is smaller than the threshold value, the bedroom environment is judged to be in a quiet state,
when the sound volume value is larger than or equal to the threshold value, the bedroom environment is judged to be in a loud state;
s4, the alarm module receives the analysis and judgment result of the central control processing module to the data, and limits the monitoring time period,
if the monitoring time is out, no matter how the received analysis and judgment result is, the alarm module does not give an alarm;
if during the monitoring period of time,
when the student is in the bedroom and the environment of the bedroom is judged to be in a quiet state, the alarm modules do not give an alarm,
when the student is not in the bedroom, the alarm module sends the name and the bedroom number of the student corresponding to the ID number of the RFID tag to a display end in the alarm module to remind the hostage manager that the student corresponding to the ID number of the RFID tag is not in the bedroom,
when the student bedroom environment is judged to be in a noisy state, the alarm module sends the student name and the bedroom number corresponding to the RFID tag ID number value to the display end in the alarm module, and the host management personnel is reminded that the bedroom corresponding to the RFID tag ID number value is noisy.
When the step S2 is in the operating mode,
if the signal data transmitted by the RFID label is acquired, the data acquisition module can judge the ID number of the RFID label in the received data signal,
when the ID number of the RFID tag is the ID number bound with the bedroom RFID signal reader, the ID number of the RFID tag is a valid ID, the received ambient sound volume amplitude data is converted into a specific sound volume value,
when the ID number of the RFID tag is not the ID number bound with the bedroom RFID signal reader, the ID number of the RFID tag is an invalid ID, and the received volume amplitude data of the surrounding environment is not converted;
if the signal data transmitted by the RFID tag cannot be acquired, corresponding data processing is not carried out;
in this embodiment, the number 1 is the RFID tag number of the No. 1 bedroom, and the number 2 is not the RFID tag number of the No. 1 bedroom, and when the bedroom RFID signal reader corresponding to the No. 1 bedroom collects the signals transmitted by the RFID tags of the numbers 1 and 2, the data acquisition module determines that the number 1 is the valid ID and the number 2 is the invalid ID.
When the step S2 is in the sleep mode,
if the signal data transmitted by the RFID label is acquired, the data acquisition module can judge the ID number of the RFID label in the received data signal,
when the ID number of the RFID tag is the ID number bound with the bedroom RFID signal reader, the data acquisition module converts the working mode from the dormant mode to the working mode,
when the ID number of the RFID tag is not the ID number bound with the dormitory RFID signal reader, the data acquisition module continues to keep the sleep mode;
and if the signal data transmitted by the RFID tag cannot be acquired, the data acquisition module continues to keep the sleep mode.
When the data acquisition module is in a working mode, the data acquisition module judges according to the ID number of the RFID label in the received data signal, filters out invalid IDs and converts the volume amplitude data of the surrounding environment in the data signal corresponding to the valid IDs into a specific sound volume numerical value; and when the data acquisition module is in the sleep mode, only judging whether the RFID signal reader of the bedroom acquires the ID number of the RFID tag corresponding to the bedroom, if so, exiting the sleep mode and entering the working mode, and if not, continuously keeping the sleep mode.
In this embodiment, the serial number 3 is the RFID tag serial number of the bedroom No. 2, and the serial number 4 is not the RFID tag serial number of the bedroom No. 2, and when the data acquisition module is in the sleep mode, when the bedroom RFID signal reader corresponding to the bedroom No. 2 acquires the RFID tag transmission signal of the serial number 3, the data acquisition module will be changed from the sleep mode to the operating mode, and when the bedroom RFID signal reader corresponding to the bedroom No. 2 acquires the RFID tag transmission signal of the serial number 4, the data acquisition module continues to maintain the sleep mode.
The first unit time is larger than the second unit time, the third unit time is larger than the fourth unit time, and the first unit time, the second unit time, the third unit time, the fourth unit time and the fifth unit time are all adjustable.
The smaller the first unit time and the second unit time are, the higher the frequency of a signal transmitted in the RFID tag module is, the more accurate the data is, the smaller the fifth unit time is, the higher the frequency of the data transmitted to the central control processing module by the data acquisition module is, and the faster the speed of the corresponding alarm module for feeding back the bedroom condition to the host and management personnel is.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an indoor attendance and volume detection system based on RFID which characterized in that includes:
the RFID tag module is used for transmitting signals to the periphery of the RFID tag every other first unit time;
the ID binding module is used for binding the ID numbers corresponding to the RFID tags in the badges with the names of the students and the bedroom numbers to which the students belong;
the data acquisition module acquires data conditions of whether a student in each bedroom is asleep and whether the student in each bedroom is noisy through the RFID signal readers arranged in the bedrooms, and then uploads the acquired data to the central control processing module at intervals, wherein the RFID signal readers arranged in the bedrooms have different and unique numbers and are bound with the bedrooms;
the central control processing module is used for receiving the data acquired by the data acquisition module and analyzing and judging the data;
and the alarm module is used for receiving the analysis and judgment result of the central control processing module on the data, and giving an alarm when the student is not in a bedroom or is noisy.
2. The system of claim 1, wherein the system is configured to perform indoor attendance and volume detection based on RFID: the RFID tag module further comprises a bedroom volume amplitude acquisition module, the bedroom volume amplitude acquisition module acquires the volume amplitude of the surrounding environment once every second unit time through a microphone on the badge, the bedroom volume amplitude acquisition module transmits the volume amplitude of the surrounding environment acquired each time to the RFID tag module,
the RFID tag module transmits signals to the surroundings once every first unit time, the first unit time is longer than the second unit time, the first unit time and the second unit time can be adjusted,
the signal content transmitted by the RFID tag module is the ID number of the RFID tag and the latest ambient volume amplitude data acquired by the bedroom volume amplitude acquisition module in the RFID tag module.
3. The system of claim 2, wherein the system is configured to perform indoor attendance and volume detection based on RFID: the data acquisition module comprises a working mode and a sleep mode,
in the working mode, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire the signal data transmitted by the RFID tag module once every third unit time,
in the sleep mode, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire signal data transmitted by the RFID tag module once every fourth unit time,
the RFID signal reader is bound with each bedroom and the corresponding RFID label ID number of the bedroom,
the third unit time is longer than the fourth unit time, the data acquisition module transmits the acquired data, the RFID signal reader number and the current time to the central control processing module every fifth unit time, the transmitted acquired data is the data acquired by the data acquisition module in the interval time of two transmissions,
when the data acquisition module acquires data, the data acquisition module only transmits the serial number of the RFID signal reader and the current time to the central control processing module,
the third unit time, the fourth unit time and the fifth unit time are all adjustable.
4. The RFID-based indoor attendance and volume detection system of claim 3, wherein: the central control processing module receives the data transmitted by the data acquisition module,
the central control processing module calculates the average value of all sound volume values in the data, simultaneously matches all RFID label ID number values in the data with the corresponding RFID label ID number values, wherein the corresponding RFID label ID number values are all RFID label ID number values under the condition that all students are in a bedroom and the data are successfully collected,
if the ID number values of the RFID tags are not successfully matched, the student is not in the bedroom,
if the ID number values of the RFID tags are successfully matched, the student in the bedroom compares the sound volume values in the data with a threshold value, wherein the threshold value is the larger value of the average value of all the sound volume values in the received data and the preset value of the central control processing module,
when the sound volume value is smaller than the threshold value, the bedroom environment is judged to be in a quiet state,
when the sound volume value is larger than or equal to the threshold value, the bedroom environment is judged to be in a loud state.
5. The RFID-based indoor attendance and volume detection system of claim 4, wherein: the alarm module is used for receiving the analysis and judgment result of the central control processing module on the data,
the alarm module may also limit the monitoring period,
if the monitoring time is out, no matter how the received analysis and judgment result is, the alarm module does not give an alarm;
if during the monitoring period of time,
when the student is in the bedroom and the environment of the bedroom is judged to be in a quiet state, the alarm modules do not give an alarm,
when the student is not in the bedroom, the alarm module sends the name and the bedroom number of the student corresponding to the ID number of the RFID tag to a display end in the alarm module to remind the hostage manager that the student corresponding to the ID number of the RFID tag is not in the bedroom,
when the student bedroom environment is judged to be in a noisy state, the alarm module sends the student name and the bedroom number corresponding to the RFID tag ID number value to the display end in the alarm module, and the host management personnel is reminded that the bedroom corresponding to the RFID tag ID number value is noisy.
6. An indoor attendance and volume detection method based on RFID is characterized in that: the method comprises the following specific steps:
s1, acquiring the volume amplitude of the surrounding environment once every second unit time through a microphone on a badge through a bedroom volume amplitude acquisition module in the RFID tag module, transmitting the volume amplitude of the surrounding environment acquired every time to the RFID tag module through the bedroom volume amplitude acquisition module, transmitting a signal to the surrounding once every first unit time by the RFID tag module, wherein the signal content transmitted by the RFID tag module is the ID number of the RFID tag and the latest surrounding environment volume amplitude data acquired by the bedroom volume amplitude acquisition module in the RFID tag module;
s2, the data acquisition module comprises a working mode and a sleep mode,
when the working mode is adopted, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire signal data transmitted by the RFID tag module once every third unit time;
when in the sleep mode, the data acquisition module controls the RFID signal readers arranged in each bedroom to acquire the signal data transmitted by the RFID tag module once every fourth unit time,
the RFID signal reader is bound with each bedroom and the corresponding RFID label ID number of the bedroom,
the data acquisition module transmits the acquired data, the RFID signal reader number and the current time to the central control processing module every fifth unit time, the transmitted acquired data is the data acquired by the data acquisition module in the interval time of two transmissions,
when the data acquisition module does not acquire data, the data acquisition module only transmits the serial number of the RFID signal reader and the current time to the central control processing module;
s3, the central control processing module receives the data transmitted by the data acquisition module, matches all the RFID label ID number values in the data with the corresponding RFID label ID number values, wherein the corresponding RFID label ID number values are all the RFID label ID number values under the condition that all students are in the bedroom and the data are successfully acquired,
if the ID number values of the RFID tags are not successfully matched, the student is not in the bedroom,
if the ID number values of the RFID tags are successfully matched, the student compares the sound volume value in the data with the threshold value in the bedroom,
when the sound volume value is smaller than the threshold value, the bedroom environment is judged to be in a quiet state,
when the sound volume value is larger than or equal to the threshold value, the bedroom environment is judged to be in a loud state;
s4, the alarm module receives the analysis and judgment result of the central control processing module to the data, and limits the monitoring time period,
if the monitoring time is out, no matter how the received analysis and judgment result is, the alarm module does not give an alarm;
if during the monitoring period of time,
when the student is in the bedroom and the environment of the bedroom is judged to be in a quiet state, the alarm modules do not give an alarm,
when the student is not in the bedroom, the alarm module sends the name and the bedroom number of the student corresponding to the ID number of the RFID tag to a display end in the alarm module to remind the hostage manager that the student corresponding to the ID number of the RFID tag is not in the bedroom,
when the student bedroom environment is judged to be in a noisy state, the alarm module sends the student name and the bedroom number corresponding to the RFID tag ID number value to the display end in the alarm module, and the host management personnel is reminded that the bedroom corresponding to the RFID tag ID number value is noisy.
7. The RFID-based indoor attendance and volume detection method according to claim 6, characterized in that: when the step S2 is in the operating mode,
if the signal data transmitted by the RFID label is acquired, the data acquisition module can judge the ID number of the RFID label in the received data signal,
when the ID number of the RFID tag is the ID number bound with the bedroom RFID signal reader, the ID number of the RFID tag is a valid ID, the received ambient sound volume amplitude data is converted into a specific sound volume value,
when the ID number of the RFID tag is not the ID number bound with the bedroom RFID signal reader, the ID number of the RFID tag is an invalid ID, and the received volume amplitude data of the surrounding environment is not converted;
if the signal data transmitted by the RFID tag cannot be acquired, corresponding data processing is not carried out;
when the step S2 is in the sleep mode,
if the signal data transmitted by the RFID label is acquired, the data acquisition module can judge the ID number of the RFID label in the received data signal,
when the ID number of the RFID tag is the ID number bound with the bedroom RFID signal reader, the data acquisition module converts the working mode from the dormant mode to the working mode,
when the ID number of the RFID tag is not the ID number bound with the dormitory RFID signal reader, the data acquisition module continues to keep the sleep mode;
and if the signal data transmitted by the RFID tag cannot be acquired, the data acquisition module continues to keep the sleep mode.
8. The RFID-based indoor attendance and volume detection method according to claim 6, characterized in that: the first unit time is larger than the second unit time, the third unit time is larger than the fourth unit time, and the first unit time, the second unit time, the third unit time, the fourth unit time and the fifth unit time are all adjustable.
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