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CN109061443B - Electronic tag sensitivity test method for eliminating clamp influence - Google Patents

Electronic tag sensitivity test method for eliminating clamp influence Download PDF

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CN109061443B
CN109061443B CN201810979799.1A CN201810979799A CN109061443B CN 109061443 B CN109061443 B CN 109061443B CN 201810979799 A CN201810979799 A CN 201810979799A CN 109061443 B CN109061443 B CN 109061443B
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frequency
power
sensitivity
electronic tag
fixture
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CN109061443A (en
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田正其
赵双双
徐晴
祝宇楠
周超
欧阳曾恺
龚丹
穆小星
夏国芳
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Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
State Grid Corp of China SGCC
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Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
State Grid Corp of China SGCC
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G01R31/2822Testing of electronic circuits specially adapted for particular applications not provided for elsewhere of microwave or radiofrequency circuits
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Physics & Mathematics (AREA)
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Abstract

本发明公开了一种消除夹具影响的电子标签灵敏度测试方法,包括将电子标签,放置到夹具上;配置射频发射单元,设置频率与功率扫描区间;得到所有频率点对应的最小平均功率值;用已知增益的标准接收天线,替换相同位置处夹具上的电子标签;对夹具上标准接收天线发射信号;标准接收天线接收到该信号后,通过接收分析单元分析出该信号的功率,并减去该标准接收天线的增益,得到电子标签实际接收到的RIP功率,该RIP功率为该电子标签的灵敏度。本发明利用标准接收天线替代处于夹具中的被测电子标签,用该标准接收天线接收到的功率来标定电子标签的灵敏度,从而排除夹具对测试结果的影响,测试精确度高。

Figure 201810979799

The invention discloses a method for testing the sensitivity of an electronic label that eliminates the influence of a fixture, including placing the electronic label on the fixture; configuring a radio frequency transmitting unit, setting a frequency and power scanning interval; obtaining the minimum average power value corresponding to all frequency points; A standard receiving antenna with known gain replaces the electronic tag on the fixture at the same position; transmits a signal to the standard receiving antenna on the fixture; after the standard receiving antenna receives the signal, it analyzes the power of the signal through the receiving analysis unit, and subtracts The gain of the standard receiving antenna obtains the RIP power actually received by the electronic tag, and the RIP power is the sensitivity of the electronic tag. The invention uses a standard receiving antenna to replace the tested electronic tag in the fixture, uses the power received by the standard receiving antenna to calibrate the sensitivity of the electronic tag, thereby eliminating the influence of the fixture on the test result, and the test accuracy is high.

Figure 201810979799

Description

一种消除夹具影响的电子标签灵敏度测试方法A Sensitivity Testing Method of Electronic Tags Eliminating the Effect of Fixtures

技术领域technical field

本发明涉及一种消除夹具影响的电子标签灵敏度测试方法,属于电子测量技术领域。The invention relates to a method for testing the sensitivity of an electronic label that eliminates the influence of a fixture, and belongs to the technical field of electronic measurement.

背景技术Background technique

当前社会随着物联网的飞速发展,与其密切相关的射频识别技术应用也得到了广泛的应用,遍及各个领域,如:物流传输、物品识别、车联网、身份识别等。With the rapid development of the Internet of Things in the current society, the application of radio frequency identification technology closely related to it has also been widely used in various fields, such as: logistics transmission, item identification, Internet of Vehicles, identity identification, etc.

为了使得各种电子标签在实际应用中能够被快速、方便并准确的识别,在电子标签的生产阶段需要对电子标签进行严格的测试。In order to enable various electronic tags to be quickly, conveniently and accurately identified in practical applications, strict testing of the electronic tags is required during the production stage of the electronic tags.

电子标签灵敏度是反映标签好坏的一项重要指标,这个指标也与测试的环境有很大的关系。在电子标签灵敏度测试过程中,需要通过夹具对电子标签进行夹持,但是,夹具会对电子标签灵敏度产生的影响,如何消除夹具的影响,是当前电子标签灵敏度测试过程中,急需解决的问题。The sensitivity of the electronic label is an important indicator to reflect the quality of the label, and this indicator also has a great relationship with the test environment. During the electronic tag sensitivity test process, the electronic tag needs to be clamped by the fixture. However, the impact of the fixture on the sensitivity of the electronic tag, how to eliminate the influence of the fixture is an urgent problem to be solved in the current electronic tag sensitivity test process.

发明内容Contents of the invention

本发明目的是为了克服现有的在电子标签灵敏度测试过程中,需要通过夹具对电子标签进行夹持,但是,夹具会对电子标签灵敏度产生的影响,影响测试精确度的问题。本发明的消除夹具影响的电子标签灵敏度测试方法,利用标准接收天线替代处于夹具中的被测电子标签,用该标准接收天线接收到的功率来标定电子标签的灵敏度,从而排除夹具对测试结果的影响,测试精确度高,方法巧妙,容易实现,具有良好的应用前景。The purpose of the present invention is to overcome the existing problem that the electronic tag needs to be clamped by a jig during the sensitivity test of the electronic tag, but the jig will affect the sensitivity of the electronic tag and affect the test accuracy. The electronic tag sensitivity test method that eliminates the influence of the fixture of the present invention uses a standard receiving antenna to replace the electronic tag under test in the fixture, and uses the power received by the standard receiving antenna to calibrate the sensitivity of the electronic tag, thereby eliminating the influence of the fixture on the test results. Influence, high test accuracy, ingenious method, easy to implement, and good application prospects.

为了达到上述目的,本发明所采用的技术方案是:In order to achieve the above object, the technical scheme adopted in the present invention is:

一种消除夹具影响的电子标签灵敏度测试方法,包括以下步骤,A kind of electronic label sensitivity testing method that eliminates fixture influence, comprises the following steps,

步骤(A),将电子标签,放置到夹具上;Step (A), placing the electronic tag on the fixture;

步骤(B),配置射频发射单元,设置频率与功率扫描区间;Step (B), configuring the radio frequency transmitting unit, setting the frequency and power scanning interval;

步骤(C),通过配置后的射频发射单元,对夹具上的电子标签进行扫描测试,得到所有频率点对应的最小平均功率值;Step (C), scan and test the electronic tags on the fixture through the configured radio frequency transmitting unit to obtain the minimum average power values corresponding to all frequency points;

步骤(D),用已知增益的标准接收天线,替换相同位置处夹具上的电子标签;Step (D), replace the electronic label on the fixture at the same position with a standard receiving antenna of known gain;

步骤(E),射频发射单元根据步骤(C)得到的最小平均功率值,以及该平均功率值对应的频率点,对夹具上标准接收天线发射信号;In step (E), the radio frequency transmitting unit transmits signals to the standard receiving antenna on the fixture according to the minimum average power value obtained in step (C) and the frequency point corresponding to the average power value;

步骤(F),标准接收天线接收到该信号后,通过接收分析单元分析出该信号的功率,并减去该标准接收天线的增益,得到电子标签实际接收到的RIP功率,该RIP功率为该电子标签的灵敏度。Step (F), after the standard receiving antenna receives the signal, the power of the signal is analyzed by the receiving analysis unit, and the gain of the standard receiving antenna is subtracted to obtain the RIP power actually received by the electronic tag. The RIP power is the Sensitivity of electronic tags.

前述的一种消除夹具影响的电子标签灵敏度测试方法,步骤(B),配置射频发射单元,设置频率与功率扫描区间,包括以下步骤,The aforesaid method for testing the sensitivity of electronic tags that eliminates the influence of fixtures, step (B), configures the radio frequency transmitting unit, and sets the frequency and power scanning interval, including the following steps,

(B1),根据被测标签电子所遵循的协议,设置射频发射单元中心频率的上、下限以及频率步进,得到需要测试的频率区间;(B1), according to the protocol followed by the tested tag electronics, set the upper and lower limits and frequency steps of the center frequency of the radio frequency transmitting unit to obtain the frequency range to be tested;

(B2),预计该类型电子标签的灵敏度,设置包含该灵敏度的测试区间,配置射频发射单元的功率步进,得到需要测试的功率扫描区间。(B2), estimate the sensitivity of this type of electronic tag, set the test interval including the sensitivity, configure the power step of the radio frequency transmitting unit, and obtain the power scanning interval to be tested.

前述的一种消除夹具影响的电子标签灵敏度测试方法,步骤(C),通过配置后的射频发射单元,对夹具上的电子标签进行扫描测试,得到所有频率点对应的最小平均功率值,包括以下步骤,The foregoing method for testing the sensitivity of electronic tags that eliminates the influence of fixtures, step (C), scans and tests the electronic tags on the fixture through the configured radio frequency transmitting unit, and obtains the minimum average power values corresponding to all frequency points, including the following step,

(C1),在频率区间内任意选择某个频率点,根据功率扫描区间、功率步进,从下往上进行功率点扫描,当电子标签第一次出现响应时,记录该频率点下此时的第一功率值;同样在该频率点下,根据功率扫描区间、功率步进,从上往下进行功率点扫描,当电子标签第一次出现响应时,记录该频率点下此时的第二功率值;(C1), select a certain frequency point arbitrarily in the frequency interval, and scan the power point from bottom to top according to the power scanning interval and power step. When the electronic tag responds for the first time, record the frequency point at this time At this frequency point, scan the power point from top to bottom according to the power scanning interval and power step. When the electronic tag responds for the first time, record the first power value at this frequency point. Two power values;

(C2),将第一功率值、第二功率值求平均,该平均功率值为在该频率点下的灵敏度;(C2), averaging the first power value and the second power value, the average power value is the sensitivity at the frequency point;

(C3),根据频率区间、频率步进,向上或者向下选择下一个频率点,重复(C1)-(C2),直到频率区间内所有频率点测试完毕;(C3), according to the frequency interval and frequency step, select the next frequency point up or down, and repeat (C1)-(C2) until all frequency points in the frequency interval are tested;

(C4),寻找所有频率点对应的最小平均功率值。(C4), find the minimum average power value corresponding to all frequency points.

前述的一种消除夹具影响的电子标签灵敏度测试方法,(B1),根据被测标签电子所遵循的协议,设置射频发射单元中心频率的上、下限为960MHz~860MHz,以及频率步进为5MHz,得到需要测试的频率区间。The aforementioned method for testing the sensitivity of electronic tags that eliminates the influence of fixtures, (B1), according to the protocol followed by the tested tag electronics, set the upper and lower limits of the center frequency of the radio frequency transmitting unit to 960MHz ~ 860MHz, and the frequency step is 5MHz, Get the frequency range that needs to be tested.

前述的一种消除夹具影响的电子标签灵敏度测试方法,(B2),预计该类型电子标签的灵敏度,设置包含该灵敏度的测试区间为-20dBm~10dBm,配置射频发射单元的功率步进0.1dBm,得到需要测试的功率扫描区间为0dBm~20dBm。The aforementioned sensitivity test method of electronic tags that eliminates the influence of fixtures, (B2), predicts the sensitivity of this type of electronic tags, sets the test range including the sensitivity to -20dBm ~ 10dBm, and configures the power of the radio frequency transmitting unit in steps of 0.1dBm, It is obtained that the power sweep interval to be tested is 0dBm-20dBm.

前述的一种消除夹具影响的电子标签灵敏度测试方法,所述射频发射单元为PXIe-7762射频发生器,且该射频发生器的发射天线为S8658WPR右圆极化天线。In the aforementioned electronic tag sensitivity test method that eliminates the influence of fixtures, the radio frequency transmitting unit is a PXIe-7762 radio frequency generator, and the transmitting antenna of the radio frequency generator is a S8658WPR right circularly polarized antenna.

前述的一种消除夹具影响的电子标签灵敏度测试方法,所述接收分析单元为聚星仪器T39106射频收发器。In the aforementioned method for testing the sensitivity of an electronic tag that eliminates the influence of fixtures, the receiving and analyzing unit is the T39106 radio frequency transceiver of Fuxing Instruments.

前述的一种消除夹具影响的电子标签灵敏度测试方法,所述标准接收天线为72001-07偶极子天线。In the aforementioned method for testing the sensitivity of electronic tags that eliminates the influence of fixtures, the standard receiving antenna is a 72001-07 dipole antenna.

本发明的有益效果是:本发明的消除夹具影响的电子标签灵敏度测试方法,利用标准接收天线替代处于夹具中的被测电子标签,用该标准接收天线接收到的功率来标定电子标签的灵敏度,从而排除夹具对测试结果的影响,测试精确度高,方法巧妙,容易实现,具有良好的应用前景。The beneficial effects of the present invention are: the electronic tag sensitivity test method that eliminates the influence of the fixture of the present invention uses a standard receiving antenna to replace the electronic tag under test in the fixture, and uses the power received by the standard receiving antenna to calibrate the sensitivity of the electronic tag. Therefore, the influence of the fixture on the test result is eliminated, the test accuracy is high, the method is ingenious, easy to implement, and has good application prospects.

附图说明Description of drawings

图1是本发明的消除夹具影响的电子标签灵敏度测试方法的流程图;Fig. 1 is the flow chart of the electronic label sensitivity testing method that eliminates fixture influence of the present invention;

图2是本发明的消除夹具影响的电子标签灵敏度测试系统的系统框图。Fig. 2 is a system block diagram of the electronic tag sensitivity test system eliminating the influence of the fixture according to the present invention.

具体实施方式Detailed ways

下面将结合说明书附图,对本发明做进一步说明。以下实施例仅用于更加清楚地说明本发明的技术方案,而不能以此来限制本发明的保护范围。The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

如图1所示,本发明的消除夹具影响的电子标签灵敏度测试方法,包括以下步骤,As shown in Figure 1, the electronic label sensitivity test method that eliminates the fixture influence of the present invention, comprises the following steps,

步骤(A),将电子标签,放置到夹具上;Step (A), placing the electronic tag on the fixture;

步骤(B),配置射频发射单元,设置频率与功率扫描区间,包括以下步骤,Step (B), configure the radio frequency transmitting unit, set the frequency and power scanning interval, including the following steps,

(B1),根据被测标签电子所遵循的协议,设置射频发射单元中心频率的上、下限以及频率步进,得到需要测试的频率区间;(B1), according to the protocol followed by the tested tag electronics, set the upper and lower limits and frequency steps of the center frequency of the radio frequency transmitting unit to obtain the frequency range to be tested;

(B2),预计该类型电子标签的灵敏度,设置包含该灵敏度的测试区间,配置射频发射单元的功率步进,得到需要测试的功率扫描区间;(B2), predict the sensitivity of this type of electronic tag, set the test interval containing the sensitivity, configure the power step of the radio frequency transmitting unit, and obtain the power scanning interval to be tested;

步骤(C),通过配置后的射频发射单元,对夹具上的电子标签进行扫描测试,得到所有频率点对应的最小平均功率值;Step (C), scan and test the electronic tags on the fixture through the configured radio frequency transmitting unit to obtain the minimum average power values corresponding to all frequency points;

(C1),在频率区间内任意选择某个频率点,根据功率扫描区间、功率步进,从下往上进行功率点扫描,当电子标签第一次出现响应时,记录该频率点下此时的第一功率值;同样在该频率点下,根据功率扫描区间、功率步进,从上往下进行功率点扫描,当电子标签第一次出现响应时,记录该频率点下此时的第二功率值;(C1), select a certain frequency point arbitrarily in the frequency interval, and scan the power point from bottom to top according to the power scanning interval and power step. When the electronic tag responds for the first time, record the frequency point at this time At this frequency point, scan the power point from top to bottom according to the power scanning interval and power step. When the electronic tag responds for the first time, record the first power value at this frequency point. Two power values;

(C2),将第一功率值、第二功率值求平均,该平均功率值为在该频率点下的灵敏度;(C2), averaging the first power value and the second power value, the average power value is the sensitivity at the frequency point;

(C3),根据频率区间、频率步进,向上或者向下选择下一个频率点,重复(C1)-(C2),直到频率区间内所有频率点测试完毕;(C3), according to the frequency interval and frequency step, select the next frequency point up or down, and repeat (C1)-(C2) until all frequency points in the frequency interval are tested;

(C4),寻找所有频率点对应的最小平均功率值;(C4), find the minimum average power value corresponding to all frequency points;

步骤(D),用已知增益的标准接收天线,替换相同位置处夹具上的电子标签;Step (D), replace the electronic label on the fixture at the same position with a standard receiving antenna of known gain;

步骤(E),射频发射单元根据步骤(C)得到的最小平均功率值,以及该平均功率值对应的频率点,对夹具上标准接收天线发射信号;In step (E), the radio frequency transmitting unit transmits signals to the standard receiving antenna on the fixture according to the minimum average power value obtained in step (C) and the frequency point corresponding to the average power value;

步骤(F),标准接收天线接收到该信号后,通过接收分析单元分析出该信号的功率,并减去该标准接收天线的增益,得到电子标签实际接收到的RIP功率,RIP功率即标签刚好可以工作的射频场强用理想单极子天线接收到的功率,该RIP功率为该电子标签的灵敏度。Step (F), after the standard receiving antenna receives the signal, the power of the signal is analyzed by the receiving analysis unit, and the gain of the standard receiving antenna is subtracted to obtain the RIP power actually received by the electronic tag. The RIP power is the label just The radio frequency field strength that can work is the power received by an ideal monopole antenna, and the RIP power is the sensitivity of the electronic tag.

本发明的消除夹具影响的电子标签灵敏度测试方法,在如图2所示的测试系统上实现,具体过程如下:其中,夹具上放置待测电子标签或者标准接收天线;The electronic tag sensitivity testing method that eliminates the influence of the fixture of the present invention is implemented on the test system as shown in Figure 2, and the specific process is as follows: wherein, the electronic tag to be tested or the standard receiving antenna is placed on the fixture;

射频发射单元,根据实际情况,设置好扫描频率上限、扫描频率下限、扫描频率步进,以及扫描功率上限、扫描功率下限、扫描功率步进;在某一频率下,对功率从低到高进行扫描,记下标签刚好有响应时的功率值,再对功率进行从高到低进行扫描,记下标签刚好没有响应时的功率,对这两个值取平均值,得到该频率下有响应的最低功率;重复上一个过程,直到所有的频率点扫描完,并得到每个频率点下与之对应的有响应最低功率,在这些最低功率中,再取最小值,得到名义上的灵敏度,并记录下在取得该最小值时,射频发射单元的配置;将电子标签替换为标准接收天线,用与上述记录的记录下在取得该最小值时,射频发射单元的配置相同的配置发送相同的信号,接收分析单元收到一个功率,用该功率减去标准接收天线的增益,即得到电子标签实际收到的RIP功率,即为该电子标签测试的灵敏度。The RF transmitting unit, according to the actual situation, sets the upper limit of the scanning frequency, the lower limit of the scanning frequency, the stepping of the scanning frequency, the upper limit of the scanning power, the lower limit of the scanning power, and the stepping of the scanning power; at a certain frequency, the power is adjusted from low to high. Scan, record the power value when the tag just responds, and then scan the power from high to low, record the power when the tag just does not respond, take the average of these two values, and get the response at this frequency Minimum power; repeat the previous process until all frequency points are scanned, and obtain the corresponding minimum power at each frequency point, and then take the minimum value among these minimum powers to obtain the nominal sensitivity, and Record the configuration of the RF transmitter unit when the minimum value is obtained; replace the electronic tag with a standard receiving antenna, and send the same signal with the same configuration as the configuration of the RF transmitter unit recorded above when the minimum value is obtained , the receiving analysis unit receives a power, and subtracts the gain of the standard receiving antenna from the power to obtain the RIP power actually received by the electronic tag, which is the sensitivity of the electronic tag test.

优选的,所述射频发射单元为PXIe-7762射频发生器,且该射频发生器的发射天线为S8658WPR右圆极化天线。Preferably, the radio frequency transmitting unit is a PXIe-7762 radio frequency generator, and the transmitting antenna of the radio frequency generator is a S8658WPR right circularly polarized antenna.

优选的,所述接收分析单元为T39106射频收发器。Preferably, the receiving analysis unit is a T39106 radio frequency transceiver.

优选的,所述标准接收天线为72001-07偶极子天线。Preferably, the standard receiving antenna is a 72001-07 dipole antenna.

本发明的消除夹具影响的电子标签灵敏度测试方法,为了消除夹具对电子标签灵敏度测试的影响,提出使用已知增益的标准接收天线等效替换被测电子标签,用射频信号接收处理单元分析出接收天线接收到功率,在减去已知的接收天线增益,得到了被测电子标签实际接收到的RIP功率,即为灵敏度,测试精度高,方便可靠。In order to eliminate the influence of the fixture on the sensitivity test of the electronic tag, the method for testing the sensitivity of the electronic tag that eliminates the influence of the fixture proposes to use a standard receiving antenna with a known gain to equivalently replace the electronic tag under test, and use a radio frequency signal receiving and processing unit to analyze the received signal. The power received by the antenna is subtracted from the known gain of the receiving antenna to obtain the RIP power actually received by the electronic tag under test, which is the sensitivity. The test accuracy is high, convenient and reliable.

综上所述,本发明的消除夹具影响的电子标签灵敏度测试方法,利用标准接收天线替代处于夹具中的被测电子标签,用该标准接收天线接收到的功率来标定电子标签的灵敏度,从而排除夹具对测试结果的影响,测试精确度高,方法巧妙,容易实现,具有良好的应用前景。To sum up, the electronic tag sensitivity test method that eliminates the influence of the fixture uses a standard receiving antenna to replace the electronic tag under test in the fixture, and uses the power received by the standard receiving antenna to calibrate the sensitivity of the electronic tag, thereby eliminating The impact of fixtures on test results, high test accuracy, ingenious method, easy implementation, and good application prospects.

以上显示和描述了本发明的基本原理、主要特征及优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments, and what described in the above-mentioned embodiments and the description only illustrates the principles of the present invention, and the present invention will also have other functions without departing from the spirit and scope of the present invention. Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1.一种消除夹具影响的电子标签灵敏度测试方法,其特征在于:包括以下步骤,1. a kind of electronic label sensitivity testing method that eliminates the impact of fixture, it is characterized in that: comprise the following steps, 步骤(A),将电子标签,放置到夹具上;Step (A), placing the electronic label on the fixture; 步骤(B),配置射频发射单元,设置频率与功率扫描区间;Step (B), configure the radio frequency transmitting unit, and set the frequency and power scanning interval; 步骤(C),通过配置后的射频发射单元,对夹具上的电子标签进行扫描测试,得到所有频率点对应的最小平均功率值,包括以下步骤:Step (C), scan and test the electronic tag on the fixture through the configured radio frequency transmitting unit to obtain the minimum average power value corresponding to all frequency points, including the following steps: (C1),在频率区间内任意选择某个频率点,根据功率扫描区间、功率步进,从下往上进行功率点扫描,当电子标签第一次出现响应时,记录该频率点下此时的第一功率值;同样在该频率点下,根据功率扫描区间、功率步进,从上往下进行功率点扫描,当电子标签没有响应时,记录该频率点下此时的第二功率值;(C1), select a certain frequency point arbitrarily in the frequency interval, and scan the power point from bottom to top according to the power scanning interval and power step. When the electronic tag responds for the first time, record the frequency point at this time The first power value; also at this frequency point, according to the power scanning interval and power step, scan the power point from top to bottom. When the electronic tag does not respond, record the second power value at this frequency point at this time ; (C2),将第一功率值、第二功率值求平均,该平均功率值为在该频率点下的灵敏度;(C2), average the first power value and the second power value, and the average power value is the sensitivity at this frequency point; (C3),根据频率区间、频率步进,向上或者向下选择下一个频率点,重复(C1)-(C2),直到频率区间内所有频率点测试完毕;(C3), according to the frequency interval and frequency step, select the next frequency point up or down, and repeat (C1)-(C2) until all frequency points in the frequency interval are tested; (C4),寻找所有频率点对应的最小平均功率值;(C4), find the minimum average power value corresponding to all frequency points; 步骤(D),用已知增益的标准接收天线,替换相同位置处夹具上的电子标签;Step (D), replace the electronic tag on the fixture at the same position with a standard receiving antenna with known gain; 步骤(E),射频发射单元根据步骤(C)得到的最小平均功率值,以及该平均功率值对应的频率点,对夹具上标准接收天线发射信号;Step (E), the radio frequency transmitting unit transmits signals to the standard receiving antenna on the fixture according to the minimum average power value obtained in step (C) and the frequency point corresponding to the average power value; 步骤(F),标准接收天线接收到该信号后,通过接收分析单元分析出该信号的功率,并减去该标准接收天线的增益,得到电子标签实际接收到的RIP功率,该RIP功率为该电子标签的灵敏度。Step (F), after the standard receiving antenna receives the signal, the power of the signal is analyzed by the receiving analysis unit, and the gain of the standard receiving antenna is subtracted to obtain the RIP power actually received by the electronic tag. The RIP power is the Sensitivity of electronic tags. 2.根据权利要求1所述的一种消除夹具影响的电子标签灵敏度测试方法,其特征在于:步骤(B),配置射频发射单元,设置频率与功率扫描区间,包括以下步骤,2. A method for testing the sensitivity of electronic tags that eliminates the influence of fixtures according to claim 1, characterized in that: step (B), configuring the radio frequency transmitting unit, setting the frequency and power scanning interval, includes the following steps, (B1),根据被测标签电子所遵循的协议,设置射频发射单元中心频率的上、下限以及频率步进,得到需要测试的频率区间;(B1), according to the protocol followed by the tested tag electronics, set the upper and lower limits of the center frequency of the radio frequency transmitting unit and the frequency step to obtain the frequency range to be tested; (B2),预计该类型电子标签的灵敏度,设置包含该灵敏度的测试区间,配置射频发射单元的功率步进,得到需要测试的功率扫描区间。(B2) Estimate the sensitivity of this type of electronic tag, set the test interval including the sensitivity, configure the power step of the radio frequency transmitting unit, and obtain the power scanning interval to be tested. 3.根据权利要求2所述的一种消除夹具影响的电子标签灵敏度测试方法,其特征在于:(B1),根据被测标签电子所遵循的协议,设置射频发射单元中心频率的上、下限为 960MHz~860MHz,以及频率步进为5MHz,得到需要测试的频率区间。3. A method for testing the sensitivity of electronic tags that eliminates the influence of fixtures according to claim 2, characterized in that: (B1), according to the protocol followed by the tested tag electronics, set the upper and lower limits of the center frequency of the radio frequency transmitting unit as 960MHz~860MHz, and the frequency step is 5MHz, to get the frequency range to be tested. 4.根据权利要求2所述的一种消除夹具影响的电子标签灵敏度测试方法,其特征在于:(B2),预计该类型电子标签的灵敏度,设置包含该灵敏度的测试区间为-20dBm~10dBm,配置射频发射单元的功率步进0.1dBm,得到需要测试的功率扫描区间为0dBm~20dBm。4. A method for testing the sensitivity of electronic tags that eliminates the influence of fixtures according to claim 2, characterized in that: (B2), predict the sensitivity of this type of electronic tag, and set the test interval including the sensitivity to -20dBm~10dBm, Configure the power step of the radio frequency transmitting unit to be 0.1dBm, and obtain the power scan interval to be tested as 0dBm~20dBm. 5.根据权利要求1所述的一种消除夹具影响的电子标签灵敏度测试方法,其特征在于:所述射频发射单元为PXIe-7762射频发生器,且该射频发生器的发射天线为右圆极化天线。5. A kind of electronic label sensitivity test method that eliminates the influence of fixture according to claim 1, it is characterized in that: described radio frequency transmission unit is PXIe-7762 radio frequency generator, and the transmitting antenna of this radio frequency generator is right circular pole antenna. 6.根据权利要求1所述的一种消除夹具影响的电子标签灵敏度测试方法,其特征在于:所述接收分析单元为射频收发器。6 . The electronic tag sensitivity test method for eliminating the influence of fixtures according to claim 1 , wherein the receiving and analyzing unit is a radio frequency transceiver. 7 . 7.根据权利要求1所述的一种消除夹具影响的电子标签灵敏度测试方法,其特征在于:所述标准接收天线为72001-07偶极子天线。7. A method for testing the sensitivity of electronic tags that eliminates the influence of fixtures according to claim 1, wherein the standard receiving antenna is a 72001-07 dipole antenna.
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