CN106382969A - Container liquid height detection system based on radio frequency identification (RFID) technique and working method thereof - Google Patents
Container liquid height detection system based on radio frequency identification (RFID) technique and working method thereof Download PDFInfo
- Publication number
- CN106382969A CN106382969A CN201610801890.5A CN201610801890A CN106382969A CN 106382969 A CN106382969 A CN 106382969A CN 201610801890 A CN201610801890 A CN 201610801890A CN 106382969 A CN106382969 A CN 106382969A
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- Prior art keywords
- rfid
- rfid label
- container
- label tag
- processing terminal
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
Abstract
The invention discloses a container liquid height detection system based on a radio frequency identification (RFID) technique and a working method thereof. The system mainly comprises a nonmetal container adhered with RFID tags in a surrounding manner, an RFID reader, a reader antenna, a processing terminal, an interaction terminal and communication equipment. According to the working method, the RFID reader and the reader antenna are connected, a common container is placed in a space and is adhered with a plurality of the RFID tags in a surrounding manner, the reader reads tag information on the container and simultaneously transmits the tag information to the processing terminal through the communication equipment, the processing terminal processes data acquired by a radio frequency identification module to obtain liquid height of the container and interacts with the interaction terminal through the communication equipment, and a user can detect the liquid height of the container in real time by virtue of the interaction terminal. The system and the method can adapt to complex environments and have the advantages that the operation is simple, the sensing precision is high, the identification speed is high, and the cost is low.
Description
Technical field
The present invention relates to gesture is every empty interaction technique field, specifically a kind of vessel liquid based on REID is high
Degree detecting system and its method of work.
Background technology
With the development of RF identification, wireless communication technology, based on RF identification(RFID)Technology and depth of field cognition technology
New application pattern receive much concern.By means of contactless automatic identification ability and wireless signal transmission techniques, RFID system
System is capable of the acquisition of RFID label tag signal value, then coordinates different liquids height in container anti-for the signal value of multiple labels
Feedback is different, according to law utilization algorithmic match label signal value and liquid height, is finally reached vessel liquid height real-time detection
Effect, allow user can real-time obtain liquid in containers height number.
Current vessel liquid height detection technique is mainly detected by sensor-based liquid height, the liquid of image is high
Degree detection.Sensor-based liquid height detection, relatively costly, and need in real time to sensor power.Based on image
Liquid height detects, identifies relatively slowly it is impossible to there be any barrier for the requirement of gold light is very high, needs to be calculated in a large number.
Content of the invention
The technical problem to be solved is to provide a kind of vessel liquid height detection based on REID
System and its method of work, this system and method is low to ambient light requirement, with low cost, calculates simple, and recognition speed is fast.
This system and method passes through RF identification(RFID)Obtain around ID the and RSSI letter being pasted on vessel surface label
Number strength information, carries out signal value analysis, the signal rule being presented in conjunction with RFID label tag paste position feature, in processing terminal
Carry out vessel liquid level identification, finally cell therefor liquid height is shown in real time by interactive terminal, completing finding is institute
The vessel liquid height number obtaining.
In order to realize foregoing invention purpose, technical scheme is as follows:
A kind of vessel liquid height detecting system based on REID of the present invention, including:
RFID reader:For receiving the FRID label information of reader antenna reading, including the ID of RFID label tag, signal intensity
Information, phase information, and processing terminal can be transferred to by communication equipment;
Reader antenna:For launching the signal of RFID reader, and the label information that real-time reception RFID label tag returns, transmission
To RFID reader;
Post the container of RFID label tag:Multiple RFID label tag are pasted with container to be detected in space, at certain intervals uniformly
Ground horizontal circle is pasted on vessel surface, and each label is by reader antenna activation simultaneously return signal value;
Processing terminal:Control radio frequency identification module, and the data by communication equipment acquisition RFID reader, obtain RFID label tag
Signal value, operational mode recognizer, identification obtains liquid in containers height and corresponding numerical value is passed through communication device feeding back
To interactive terminal;
Interactive terminal:Interacted with processing terminal by communication equipment, control process terminal, reception processing terminal data and to
User shows that the numerical value of detected liquid in containers height represents;
Communication equipment:Pass for the information between processing terminal and RFID reader and between processing terminal and interactive terminal
Defeated.
As the improvement of the present invention, described RFID reader is ultra-high frequency RFID label read module, described RFID label tag
For ultra-high frequency RFID label, ultra-high frequency RFID label read module is by EPC Global C1 G2 agreement read-write ultrahigh frequency RFID
Label.
Described vessel liquid highly refers to the distance apart from container bottom for the top liquid level of the liquid in container.Additionally, it is a kind of
Vessel liquid height detecting system method of work based on REID is it is characterised in that comprise the following steps:
1) container being pasted with RFID label tag is placed in space user;
2) processing terminal starts RFID reader;
3) RFID reader sends the signal of 860-960MHz frequency by reader antenna, scans the RFID label tag on container,
Read the id information of RFID label tag, obtain the RSSI signal strength values of return simultaneously;
4) RFID reader is transferred to processing terminal using communication equipment by the id information of RFID label tag, signal strength information;
5) processing terminal passes through Rapid matching according to the information receiving, and obtains the numerical tabular of liquid in containers height after process
Show, and this numerical value is sent to interactive terminal by communication equipment;
6) interactive terminal is according to the vessel liquid height number receiving, show on application program in real time respective value or
Trigger corresponding interaction effect.
Described step 5)In fast matching method i.e. according to real-time RSSI signal strength information, extract signal characteristic,
The signal rule being presented in conjunction with RFID label tag paste position feature, coupling obtains current vessel liquid surface and each RFID mark
The phase position relation signed, you can obtain vessel liquid height.
The invention provides a set of automatization, simplification, efficient vessel liquid height detecting system, this system and base
Vessel liquid height detecting system difference in sensor is, this vessel liquid height detecting system uses REID
To distinguish the height of the different liquids in container, relatively sensor-based vessel liquid height detection, cost is cheaper, deployment
Simpler, Processing Algorithm is more simple.This system goes active obtaining to be pasted on the label letter of vessel surface using radio-frequency technique
Number value, with the value of information of multiple labels, then coordinate different liquids height in container for multiple labels signal value feed back different,
According to algorithmic match label signal value and liquid height, reach the effect of the detection of vessel liquid height.Compared to based on sensing
The vessel liquid height detecting system of device, specifically has the beneficial effect that:
1st, method is simple:RFID label tag deployment process is simple, and radio-frequency module energy direct access data does not need the side of complexity
Method goes processing data, and acquired data is passed through simple process and just can directly be used.
2nd, precisely sense:User can directly obtain the liquid height of the container having pasted RFID label tag from this system
How much, reach the purpose of vessel liquid height detection.
Brief description
Fig. 1 is the vessel liquid height detecting system scene structure figure based on REID;
Fig. 2 is the system data flow graph of Fig. 1;
Fig. 3 is around the container exemplary plot being pasted with RFID label tag.
Specific embodiment
, system scenarios
Fig. 1 is system scenarios structure chart, is mainly made up of radio frequency identification module and liquid height identification module two parts.Radio frequency is known
Other system is mainly made up of following part:RFID reader, reader antenna, horizontal circle are pasted with the container of RFID label tag;
Liquid height identification module is mainly made up of following part:Processing terminal, communication equipment, interactive terminal.Radio frequency identification module leads to
Cross communication equipment to interact with liquid height identification module.System can be placed on any position on demand, in order to reduce wireless biography
The impact of the multipath effect during defeated, and ensure the stability of signal, reader antenna prevents from arriving apart from ground about 1m
1.5m between.It is pasted with the container of the RFID label tag signal stabilization between antenna 1m to 2m it is ensured that in identification process.System
System each composition partial function is as follows:
RFID reader:For receiving the FRID label information of reader antenna reading, including the ID of RFID label tag, signal intensity
Information, phase information, and processing terminal can be transferred to by communication equipment;
Reader antenna:For launching the signal of RFID reader, and the label information that real-time reception RFID label tag returns, transmission
To RFID reader;
It is pasted with the container of RFID label tag:Multiple RFID label tag are pasted with container to be detected in space, at certain intervals all
The horizontal circle of even ground is pasted on vessel surface, and each label is by reader antenna activation simultaneously return signal value;
Processing terminal:Control radio frequency identification module, and the data by communication equipment acquisition RFID reader, obtain RFID label tag
Signal value, operational mode recognizer, identification obtains liquid in containers height and corresponding numerical value is passed through communication device feeding back
To interactive terminal;
Interactive terminal:Interacted with processing terminal by communication equipment, control process terminal, reception processing terminal data and to
User shows that the numerical value of detected liquid in containers height represents;
Communication equipment:Pass for the information between processing terminal and RFID reader and between processing terminal and interactive terminal
Defeated.
Fig. 2 is system data flow graph.Xylometer to be checked in system posts multiple RFID label tag, and multiple labels can return
Multiple corresponding label signal values are in order to mate.RFID reader sends the life reading RFID label tag signal by reader antenna
Order, the signal of tag reflection is transferred to RFID reader by reader antenna again, and the label information of reading is passed through to set by reader
For being transferred to processing terminal, now processing terminal obtains the corresponding signal intensity of each label in vessel surface.Processing terminal
The tag signal strength that radio frequency identification module is obtained obtains the vessel liquid height number mating according to algorithm, completes container liquid
The function of body height detection.Finally by communication equipment, recognition result is transferred to interactive terminal and shows in real time or triggering phase
The interaction effect answered.Specific workflow is as follows:
1) container being pasted with RFID label tag is placed in space user;
2) processing terminal starts RFID reader;
3) RFID reader sends the signal of 860-960MHz frequency by reader antenna, scans the RFID label tag on container,
Read the id information of RFID label tag, obtain the RSSI signal strength values of return simultaneously;
4) RFID reader is transferred to processing terminal using communication equipment by the id information of RFID label tag, signal strength information;
5) processing terminal passes through Rapid matching according to the information receiving, and obtains the numerical tabular of liquid in containers height after process
Show, and this numerical value is sent to interactive terminal by communication equipment;
6) interactive terminal is according to the vessel liquid height number receiving, show on application program in real time respective value or
Trigger corresponding interaction effect.
, system scenarios
Fig. 3 is containers labels deployment diagram, and by RFID label tag parallel to container bottom, parallel ring is around being pasted on vessel surface and many
Maintain a certain distance between individual label, parallel to each other.
Based on description of the preferred embodiment of the present invention it should be apparent that the basis being defined by the appended claims
Invention is not limited only to the specific detail that illustrated in specification above, without departing from present inventive concept or scope to this
Bright many obvious change is equally possible to reach the purpose of the present invention.
Claims (5)
1. a kind of vessel liquid height detecting system based on REID is it is characterised in that include:
RFID reader:For receiving the FRID label information of reader antenna reading, including the ID of RFID label tag, signal intensity
Information, phase information, and processing terminal can be transferred to by communication equipment;
Reader antenna:For launching the signal of RFID reader, and the label information that real-time reception RFID label tag returns, transmission
To RFID reader;
Post the container of RFID label tag:Multiple RFID label tag are pasted with container to be detected in space, at certain intervals uniformly
Ground horizontal circle is pasted on vessel surface, and each label is by reader antenna activation simultaneously return signal value;
Processing terminal:Control radio frequency identification module, and the data by communication equipment acquisition RFID reader, obtain RFID label tag
Signal value, operational mode recognizer, identification obtains liquid in containers height and corresponding numerical value is passed through communication device feeding back
To interactive terminal;
Interactive terminal:Interacted with processing terminal by communication equipment, control process terminal, reception processing terminal data and to
User shows that the numerical value of detected liquid in containers height represents;
Communication equipment:Pass for the information between processing terminal and RFID reader and between processing terminal and interactive terminal
Defeated.
2. the vessel liquid height system based on REID according to claim 1 is it is characterised in that described
RFID reader is ultra-high frequency RFID label read module, and described RFID label tag is ultra-high frequency RFID label, ultrahigh frequency RFID mark
Sign read module and ultra-high frequency RFID label is read and write by EPC Global C1 G2 agreement.
3. the vessel liquid height detecting system based on REID according to claim 1 and 2, its feature exists
In described vessel liquid highly refers to the distance apart from container bottom for the top liquid level of the liquid in container.
4. a kind of vessel liquid height detecting system method of work based on REID is it is characterised in that include following
Step:
The container being pasted with RFID label tag is placed in space user;
Processing terminal starts RFID reader;
RFID reader sends the signal of 860-960MHz frequency, the RFID label tag on scanning container by reader antenna, reads
Take the id information of RFID label tag, obtain the RSSI signal strength values of return simultaneously;
RFID reader is transferred to processing terminal using communication equipment by the id information of RFID label tag, signal strength information;
Processing terminal passes through Rapid matching according to the information receiving, and the numerical value obtaining liquid in containers height after process represents,
And this numerical value is sent to interactive terminal by communication equipment;
Interactive terminal, according to the vessel liquid height number receiving, shows respective value in real time on application program or touches
Send out interaction effect corresponding.
5. a kind of vessel liquid height detecting system method of work based on REID according to claim 4,
It is characterized in that, described step 5)In fast matching method i.e. according to real-time RSSI signal strength information, extract signal special
Levy, the signal rule being presented in conjunction with RFID label tag paste position feature, coupling obtain current vessel liquid surface with each
The phase position relation of RFID label tag, you can obtain vessel liquid height.
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CN107137801A (en) * | 2017-04-25 | 2017-09-08 | 南京大学 | A kind of transfusion monitoring system and method that the frequency is read based on ultrahigh frequency RFID |
CN108376560A (en) * | 2018-04-25 | 2018-08-07 | 南京森石钛刻信息科技有限公司 | A kind of transfusion liquid level monitoring system and its working method based on RFID passive sensories |
CN108444568A (en) * | 2018-02-02 | 2018-08-24 | 广州和正盛信息科技有限公司 | A kind of method, apparatus, system and computer equipment measuring water level |
CN108875443A (en) * | 2018-09-27 | 2018-11-23 | 西安科技大学 | The human body recognition system of ultrahigh frequency band |
WO2019001213A1 (en) * | 2017-06-26 | 2019-01-03 | 上海鸿研物流技术有限公司 | Logistics apparatus and method for identifying empty/full state of logistics apparatus |
CN110780537A (en) * | 2018-07-31 | 2020-02-11 | 台湾积体电路制造股份有限公司 | Container and system and device for monitoring leakage |
CN110907015A (en) * | 2019-08-30 | 2020-03-24 | 南京邮电大学 | Liquid level monitoring method based on RFID (radio frequency identification) in indoor environment |
CN113639816A (en) * | 2021-07-06 | 2021-11-12 | 燕山大学 | Non-invasive method for monitoring the level of a liquid in a container and system for implementing said method |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107137801A (en) * | 2017-04-25 | 2017-09-08 | 南京大学 | A kind of transfusion monitoring system and method that the frequency is read based on ultrahigh frequency RFID |
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CN108444568A (en) * | 2018-02-02 | 2018-08-24 | 广州和正盛信息科技有限公司 | A kind of method, apparatus, system and computer equipment measuring water level |
CN108376560A (en) * | 2018-04-25 | 2018-08-07 | 南京森石钛刻信息科技有限公司 | A kind of transfusion liquid level monitoring system and its working method based on RFID passive sensories |
CN110780537A (en) * | 2018-07-31 | 2020-02-11 | 台湾积体电路制造股份有限公司 | Container and system and device for monitoring leakage |
CN108875443A (en) * | 2018-09-27 | 2018-11-23 | 西安科技大学 | The human body recognition system of ultrahigh frequency band |
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CN110907015A (en) * | 2019-08-30 | 2020-03-24 | 南京邮电大学 | Liquid level monitoring method based on RFID (radio frequency identification) in indoor environment |
CN110907015B (en) * | 2019-08-30 | 2021-03-23 | 南京邮电大学 | Liquid level monitoring method based on RFID (radio frequency identification) in indoor environment |
CN113639816A (en) * | 2021-07-06 | 2021-11-12 | 燕山大学 | Non-invasive method for monitoring the level of a liquid in a container and system for implementing said method |
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Application publication date: 20170208 |