CN101630775A - Method and system for adjusting antenna - Google Patents
Method and system for adjusting antenna Download PDFInfo
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- CN101630775A CN101630775A CN200810128355A CN200810128355A CN101630775A CN 101630775 A CN101630775 A CN 101630775A CN 200810128355 A CN200810128355 A CN 200810128355A CN 200810128355 A CN200810128355 A CN 200810128355A CN 101630775 A CN101630775 A CN 101630775A
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Abstract
The invention provides a method and a system for adjusting an antenna. The method comprises the following steps of: firstly, acquiring intensity of a plurality of signals of at least one electronic tag on a plurality of time points; then predicating the intensity of a prediction signal of the electronic tag on the specific time point according to the signal intensity; and judging whether the intensity of the prediction signal is less than a connection limiting value. If the intensity of the prediction signal is less than the connection limiting value, at least one antenna is adjusted so as to increase induction time of the electronic tag in an antenna readable area and improve the reading rate of the electronic tag.
Description
Technical field
The invention relates to a kind of antenna adjusting method and system, and be particularly to a kind of method and system that can dynamically adjust antenna according to the signal strength signal intensity of electronic tag.
Background technology
Along with popularizing of science and technology, electronic tag, (Radio-FrequencyIdentification RFID) can provide Object Management group ability more easily as radio-frequency recognition system.Antenna can be set in the environment receive the signal that transmits from electronic tag, and discern electronic tag according to the signal that receives.
In general, build the field intensity that must configure antenna when antenna is set in advance, and the receiving angle of fixed antenna.A large amount of antennas is set and construction repeatedly is provided with the survey formula, the read rate of the electronic tag that can acquire a certain degree by construction.Yet in the known technology, building antenna is set all is for carrying out by the people.If when needing to adjust the field intensity of antenna, then must artificially set again, cause the inconvenience of building the person of setting.
In addition, known antenna is fixed, and in other words, can't change its receiving angle.In some cases, then might cause the sensitive time deficiency of electronic tag if exist to disturb in the environment, thereby can't detect corresponding signal, or the signal strength signal intensity judgement that is not enough to be correlated with.Foregoing problems can be provided with greater amount and intensive antenna overcomes by construction.Yet, build and a large amount of antennas to be set need to spend huge cost, and the management of follow-up antenna also can cause plenty of time and pecuniary cost, thereby cause the construction person's of setting burden.
Summary of the invention
In view of this, the invention provides antenna adjusting method and system.
The antenna adjusting method of the embodiment of the invention.At first, obtain a plurality of signal strength signal intensities of at least one electronic tag in a plurality of time points.Afterwards, basis signal prediction of strength electronic tag is in a prediction signal intensity of a particular point in time.Judge whether prediction signal intensity connects limiting value less than one.If prediction signal intensity is adjusted at least one antenna less than connecting limiting value.
The antenna tuning systems of the embodiment of the invention comprises an antenna, a storage element and a processing unit.Storage element comprises a plurality of signal strength signal intensities of at least one electronic tag in a plurality of time points.Processing unit basis signal prediction of strength electronic tag is in a prediction signal intensity of a particular point in time, and judges whether prediction signal intensity connects limiting value less than one.If prediction signal intensity is less than connecting limiting value, processing unit is adjusted antenna.
Said method of the present invention can be included in tangible media by program code means.When program code was loaded and carries out by machine, machine became in order to carry out device of the present invention.
Antenna adjusting method of the present invention and system can predict the signal strength signal intensity of next time point electronic tag, and dynamically adjust antenna according to prediction signal intensity, thereby the adjustment increase electronic tag by antenna can read the regional sensitive time at antenna, to increase the read rate of electronic tag.
Description of drawings
Fig. 1 is that a schematic diagram is the antenna tuning systems that shows according to the embodiment of the invention.
Fig. 2 shows the adjustment form example according to the embodiment of the invention.
Fig. 3 is that a flow chart is the antenna adjusting method that shows according to the embodiment of the invention.
Drawing reference numeral:
100～antenna tuning systems;
110～antenna;
120～storage element;
130～processing unit;
200～adjustment form;
S302, S304 ..., S310～step.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, embodiment cited below particularly, and cooperate appended diagram, be described in detail as follows.
Fig. 1 shows the antenna tuning systems according to the embodiment of the invention.
As shown in Figure 1, according to the antenna tuning systems 100 of the embodiment of the invention comprise at least one antenna 110, a storage element 120, with a processing unit 130.Antenna 110 is in order to receive electronic tag, as the signal that RFID transmitted, and signal strength signal intensity (Received Signal Strength Indication, RSSI).Antenna 110 can have an electronic control mechanism, in order to adjust its receiving angle.In addition, antenna 110 can be set a field intensity, to define the intensity of its received signal.The attention of value be that the initial construction that antenna 110 has a predetermined angle and a default field intensity is provided with setting.Storage element 120 can the stored antenna 110 respective electronic label that receives signal, and signal strength signal intensity.Also can comprise an adjustment form (not showing among Fig. 1) in the storage element 120.In certain embodiments, can write down the adjustment parameter in the adjustment form, as the receiving angle and the receiving intensity of the required adjustment of respective antenna.Being connected limiting value with one of respective electronic label according to a signal specific intensity can be by retrieving corresponding adjustment parameter in the adjustment form.It should be noted that connecting limiting value can define according to different electronic tags and demand.Fig. 2 shows an adjustment form example.In the example of Fig. 2, adjustment form 200 is the adjustment parameters at a specific moving direction, wherein adjusts parameter and comprises receiving angle and receiving intensity.As shown in Figure 2, can determine specific adjustment parameter according to signal specific intensity and the difference that is connected limiting value.Wherein, when signal specific intensity fell within 6%～10% less than the ratio that connects limiting value, then receiving angle and the receiving intensity that need adjust of respective antenna was X1 ° and Y1.When signal specific intensity fell within 11%～15% less than the ratio that connects limiting value, then receiving angle and the receiving intensity that need adjust of respective antenna was X2 ° and Y2, by that analogy.When signal specific intensity reaches a specific ratios less than the ratio that connects limiting value, as 96%～100% o'clock, then receiving angle and the receiving intensity that need adjust of respective antenna is 0 ° and 0, in other words, when signal specific intensity less than the specific ratios that connects between limiting value, in the time of maybe can't reading the signal of electronic tag, then antenna is returned back to predetermined angle and preset strength.Mandatory declaration be, Fig. 2 is the adjustment form example only, the present invention is not limited thereto.In certain embodiments, can directly write down in the adjustment form corresponding different signal specific intensity less than the ratio that connects limiting value under the receiving angle and the receiving intensity of antenna, but not need receiving angle and the receiving intensity adjusted.It should be noted that the present invention is not limited to any adjustment form form.Anyly can and connect limiting value according to signal specific intensity and retrieve the adjustment form of adjustment parameter of corresponding antenna all applicable to the present invention.Processing unit 130 is the antenna adjusting methods in order to execution this case, and its details will be in the back explanation.
Fig. 3 shows the antenna adjusting method according to the embodiment of the invention.
As step S302, read the signal of electronic tag by antenna in different time points, thereby obtain the signal strength signal intensity of electronic tag in different time points.As step S304, predict a particular point in time, the prediction signal intensity of a following time point respective electronic label according to the signal strength signal intensity of the signal of different time points.It should be noted that, prediction signal intensity can be utilized a forecast model, waits to calculate according to the signal strength signal intensity of different time points as a gray prediction (GrayPrediction) model, rolling average (Moving Average) model, time series (Series) model.It should be noted that in certain embodiments, can judge whether the prediction signal intensity that forecast model produces is to belong to rational signal strength signal intensity.For instance, whether prediction signal intensity have identical convergent tendency with the signal strength signal intensity of different time points before, as continue to diminish.If prediction signal intensity does not belong to rational signal strength signal intensity, then can wait for antenna after another time point receives another signal of electronic tag, the signal strength signal intensity of utilizing forecast model and all to receive again recomputates prediction signal intensity.If prediction signal intensity belongs to rational signal strength signal intensity, then continue subsequent job.As step S306, judge that prediction signal intensity is whether less than the connection limiting value of respective electronic label.As previously mentioned, connecting limiting value can define according to different electronic tags and demand.If prediction signal intensity is less than connecting limiting value (step S306 denys), then process ends.
If prediction signal intensity as step S308, determines at least one adjustment parameter according to prediction signal intensity with being connected limiting value, as receiving angle and receiving intensity less than connecting limiting value (step S306 is).It should be noted that according to prediction signal intensity and can design according to demand with the mode that is connected limiting value decision adjustment parameter.In certain embodiments, the adjusted value of adjusting parameter can decide less than a ratio that connects limiting value according to prediction signal intensity.As the example of Fig. 2, can retrieve receiving angle and the receiving intensity that antenna need be adjusted by adjustment form less than the ratio that connects limiting value according to signal specific intensity.It should be noted that in certain embodiments, can basis signal intensity judge the moving direction of electronic tag, and simultaneously according to moving direction, prediction signal intensity and be connected limiting value and decide the adjustment parameter.Afterwards, as step S310, according to the adjustment parameter adjustment antenna that determines.It should be noted that in certain embodiments, if prediction signal intensity less than the specific ratios that connects limiting value, as 96%～100% o'clock, then can return back to antenna default receiving angle and default receiving intensity.In addition, in certain embodiments, when receiving intensity presents the trend that diminishes, and antenna then can return back to antenna default receiving angle and default receiving intensity can't continue to read the signal of electronic tag the time.What note is, the signal strength signal intensity that antenna continues to receive can continue record, and in order to provide forecast model to predict, to increase the accuracy of prediction signal intensity.
Therefore, the signal strength signal intensity that antenna adjusting method and system by the embodiment of the invention can predict next time point electronic tag, and dynamically adjust antenna according to prediction signal intensity, thereby the adjustment increase electronic tag by antenna can read the regional sensitive time at antenna, to increase the read rate of electronic tag.
Method of the present invention, or specific kenel or its part, can be contained in tangible media with the kenel of program code, get (as embodied on computer readable) Storage Media as floppy disk, discs, hard disk or any other machine readable, wherein, when program code by machine, when loading and carrying out as computer, this machine becomes in order to participate in device of the present invention.Method and apparatus of the present invention also can be with the program code kenel by some transfer mediums, transmit as electric wire or cable, optical fiber or any transmission kenel, wherein, when program code by machine, when receiving, loading and carrying out as computer, this machine becomes in order to participate in device of the present invention.When the general service processor is done in fact, the program code associative processor provides a class of operation to be similar to the unique apparatus of using particular logic circuit.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly be familiar with this area related personnel; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking the appending claims person of defining.
Claims (18)
1, a kind of antenna adjusting method is characterized in that, described antenna adjusting method comprises the following steps:
Obtain a plurality of signal strength signal intensities of at least one electronic tag in a plurality of time points;
Predict the prediction signal intensity of described electronic tag according to described a plurality of signal strength signal intensities in a particular point in time;
Judge whether described prediction signal intensity connects limiting value less than one; And
If described prediction signal intensity less than described connection limiting value, is adjusted at least one antenna.
2, antenna adjusting method as claimed in claim 1 is characterized in that, also comprises by described antenna reading the signal of described electronic tag in described a plurality of time points, to obtain the described a plurality of signal strength signal intensities of described electronic tag in described a plurality of time points.
3, antenna adjusting method as claimed in claim 1 is characterized in that, also comprises the following steps:
Determine at least one adjustment parameter according to described prediction signal intensity with the described limiting value that is connected; And
According to the described antenna of described adjustment parameter adjustment.
4, antenna adjusting method as claimed in claim 3 is characterized in that, described adjustment parameter comprises a receiving angle or a receiving intensity of corresponding described antenna.
5, antenna adjusting method as claimed in claim 3 is characterized in that, described adjustment parameter is to determine according to the ratio of described prediction signal intensity less than described connection limiting value.
6, antenna adjusting method as claimed in claim 5 is characterized in that, also comprises the following steps:
Judge that described prediction signal intensity is whether less than a specific ratios of described connection limiting value; And
If described prediction signal intensity less than the described specific ratios of described connection limiting value, returns back to a default receiving angle or a default receiving intensity with described antenna.
7, antenna adjusting method as claimed in claim 3 is characterized in that, also comprises the following steps:
Judge a moving direction of described electronic tag according to described a plurality of signal strength signal intensities; And
According to described moving direction and the described antenna of described adjustment parameter adjustment.
8, antenna adjusting method as claimed in claim 2 is characterized in that, also comprises the following steps:
Judge whether described antenna reads the signal of described electronic tag; And
If described antenna does not read the signal of described electronic tag, described antenna is returned back to a default receiving angle or a default receiving intensity.
9, antenna adjusting method as claimed in claim 1 is characterized in that, described prediction signal intensity is to utilize a forecast model to calculate according to described a plurality of signal strength signal intensities.
10, a kind of antenna tuning systems is characterized in that, described antenna tuning systems comprises:
One antenna;
One storage element comprises a plurality of signal strength signal intensities of at least one electronic tag in a plurality of time points; And
One processing unit, predict the prediction signal intensity of described electronic tag according to described a plurality of signal strength signal intensities in a particular point in time, whether judge described prediction signal intensity less than a connection limiting value, and if described prediction signal intensity less than described connection limiting value, is adjusted described antenna.
11, antenna tuning systems as claimed in claim 10 is characterized in that, described antenna is the signal that reads described electronic tag in described a plurality of time points, to obtain the described a plurality of signal strength signal intensities of described electronic tag in described a plurality of time points.
12, antenna tuning systems as claimed in claim 10 is characterized in that, described processing unit also determines at least one adjustment parameter according to described prediction signal intensity with the described limiting value that is connected, and according to the described antenna of described adjustment parameter adjustment.
13, antenna tuning systems as claimed in claim 12 is characterized in that, described adjustment parameter comprises a receiving angle or a receiving intensity of corresponding described antenna.
14, antenna tuning systems as claimed in claim 12 is characterized in that, described adjustment parameter is to determine according to the ratio of described prediction signal intensity less than described connection limiting value.
15, antenna tuning systems as claimed in claim 14, it is characterized in that, described processing unit judges that also described prediction signal intensity is whether less than a specific ratios of described connection limiting value, and if described prediction signal intensity less than the described specific ratios of described connection limiting value, returns back to a default receiving angle or a default receiving intensity with described antenna.
16, antenna tuning systems as claimed in claim 12 is characterized in that, described processing unit is also judged a moving direction of described electronic tag according to described a plurality of signal strength signal intensities, and according to described moving direction and the described antenna of described adjustment parameter adjustment.
17, antenna tuning systems as claimed in claim 11, it is characterized in that, described processing unit judges also whether described antenna reads the signal of described electronic tag, and, described antenna is returned back to a default receiving angle or a default receiving intensity if described antenna does not read the signal of described electronic tag.
18, antenna tuning systems as claimed in claim 10 is characterized in that, described prediction signal intensity is to utilize a forecast model to calculate according to described a plurality of signal strength signal intensities.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810128355A CN101630775A (en) | 2008-07-14 | 2008-07-14 | Method and system for adjusting antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810128355A CN101630775A (en) | 2008-07-14 | 2008-07-14 | Method and system for adjusting antenna |
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| CN101630775A true CN101630775A (en) | 2010-01-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723602A (en) * | 2012-06-29 | 2012-10-10 | 深圳市九洲电器有限公司 | Automatic satellite finding method and satellite finding device |
| CN102969562A (en) * | 2012-11-14 | 2013-03-13 | 中兴通讯股份有限公司 | Liquid metal antenna self-adapting method and control device |
| CN103235963A (en) * | 2013-05-14 | 2013-08-07 | 南京航空航天大学 | RFID (radio frequency identification) label distribution optimizing configuration method based on matrix analysis |
| CN111950677A (en) * | 2019-05-15 | 2020-11-17 | 深圳市物联锁科技有限公司 | Electronic tag chip and electronic tag |
| CN112634548A (en) * | 2019-09-24 | 2021-04-09 | 东芝泰格有限公司 | Commodity sales data processing apparatus |
-
2008
- 2008-07-14 CN CN200810128355A patent/CN101630775A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723602A (en) * | 2012-06-29 | 2012-10-10 | 深圳市九洲电器有限公司 | Automatic satellite finding method and satellite finding device |
| CN102723602B (en) * | 2012-06-29 | 2014-07-02 | 深圳市九洲电器有限公司 | Automatic satellite finding method and satellite finding device |
| CN102969562A (en) * | 2012-11-14 | 2013-03-13 | 中兴通讯股份有限公司 | Liquid metal antenna self-adapting method and control device |
| CN103235963A (en) * | 2013-05-14 | 2013-08-07 | 南京航空航天大学 | RFID (radio frequency identification) label distribution optimizing configuration method based on matrix analysis |
| CN103235963B (en) * | 2013-05-14 | 2015-09-16 | 南京航空航天大学 | A kind of distribution of the RFID label tag based on matrix analysis preferred disposition method |
| CN111950677A (en) * | 2019-05-15 | 2020-11-17 | 深圳市物联锁科技有限公司 | Electronic tag chip and electronic tag |
| CN112634548A (en) * | 2019-09-24 | 2021-04-09 | 东芝泰格有限公司 | Commodity sales data processing apparatus |
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Application publication date: 20100120 |