CN105974211A - Method and device for testing equipment antenna - Google Patents
Method and device for testing equipment antenna Download PDFInfo
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- CN105974211A CN105974211A CN201610466224.0A CN201610466224A CN105974211A CN 105974211 A CN105974211 A CN 105974211A CN 201610466224 A CN201610466224 A CN 201610466224A CN 105974211 A CN105974211 A CN 105974211A
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Abstract
The invention relates to a method and a device for testing an equipment antenna. The method comprises the following steps: acquiring a received signal strength value of a device to be tested on a transmitted signal, and acquiring a reference threshold corresponding to the transmitted signal; comparing the received signal strength value of the tested equipment with a corresponding reference threshold value, and determining whether the antenna of the tested equipment is qualified or not according to the comparison result; the method for acquiring the reference threshold comprises the following steps: and acquiring a receiving signal strength value of the reference equipment to the sending signal, and determining a reference threshold corresponding to the sending signal according to the receiving signal strength value of the reference equipment. The invention has accurate test result, can save test cost and improve test efficiency.
Description
Technical Field
The invention relates to the technical field of equipment testing, in particular to a method and a device for testing an equipment antenna.
Background
With the increasing popularity of wireless devices, the quality requirements for wireless device antennas are also increasing. The welding and assembling of the antenna bring bad influence to the whole wireless performance of the complete machine. The main test method currently adopted for the inspection of the welding and assembly of the antenna of the wireless equipment in factory production is coupling test, as shown in fig. 1, a coupling test fixture is connected with a comprehensive tester, the tested equipment is fixed on the fixture, the maximum power of the tested equipment is tested, and the test data is compared with a set standard value, so that whether the welding or the assembly of the antenna is good or not is judged.
However, the coupling test method has the following limitations that 1, an expensive comprehensive tester needs to be configured, and the test cost is high; when the whole machine is provided with a plurality of antennas, each antenna of the whole machine needs to be placed at different stations for separate testing, so that the testing cost is further increased; on the other hand, a single station can only test one device at a time, and the efficiency is low.
Disclosure of Invention
Based on this, the embodiment of the invention provides a method and a device for testing an antenna of equipment, which have the advantages of accurate test result, test cost saving and test efficiency improvement.
One aspect of the present invention provides a method of testing an antenna of a device, comprising:
acquiring a received signal strength value of the tested device to the sending signal;
judging whether the received signal strength value of the tested equipment is greater than or equal to the corresponding reference threshold value or not;
if yes, determining that the antenna of the tested equipment is qualified; if not, determining that the antenna of the tested device is unqualified;
further comprising the step of obtaining a reference threshold comprising:
and acquiring a received signal strength value of the reference equipment to the sending signal, and determining a reference threshold corresponding to the sending signal according to the received signal strength value of the reference equipment.
Another aspect of the present invention provides an apparatus for testing an antenna of a device, including:
the signal intensity acquisition module is used for acquiring the received signal intensity value of the equipment to be tested to the sending signal;
a threshold value obtaining module, configured to obtain a reference threshold value corresponding to the transmission signal;
the detection module is used for judging whether the received signal strength value of the tested equipment is greater than or equal to the corresponding reference threshold value or not; if yes, determining that the antenna of the tested equipment is qualified; if not, determining that the antenna of the tested device is unqualified;
the acquiring a reference threshold corresponding to the transmission signal includes: and acquiring a received signal strength value of the reference equipment to the sending signal, and determining a reference threshold corresponding to the sending signal according to the received signal strength value of the reference equipment.
According to the technical scheme, the receiving signal strength value of the tested equipment to the sending signal is obtained, and the receiving signal strength value of the tested equipment is compared with the corresponding reference threshold value to determine whether the antenna of the tested equipment is qualified or not; the manner of determining the reference threshold corresponding to the transmission signal may be: and obtaining the received signal strength value of the same transmitted signal by the reference equipment, and determining a reference threshold corresponding to the transmitted signal according to the received signal strength value of the reference equipment. According to the scheme of the embodiment of the invention, a common test host is adopted, a professional comprehensive tester is not needed, and the test cost is favorably controlled; when the tested equipment is provided with a plurality of antennas, the plurality of antennas can be checked through the same test host machine, and the purpose that all antennas of the whole machine are tested through one station is achieved; moreover, a plurality of tested devices can be tested simultaneously through the same test host, so that the test time is saved, and the test efficiency is improved; the reference threshold value can be determined by a value input by a user or a received signal strength value of the same sending signal by reference equipment, the test result is accurate, and the test mode is flexible.
Drawings
FIG. 1 is a schematic block diagram of a prior art system for testing an antenna of a device;
FIG. 2 is a schematic flow chart diagram of a method of testing an antenna of an embodiment;
FIG. 3 is a schematic flow chart diagram of a method of testing an antenna of a device according to another embodiment;
FIG. 4 is a schematic block diagram of an arrangement for testing an antenna of an apparatus according to an embodiment;
FIG. 5 is a schematic block diagram of a system for testing an antenna of a device in accordance with one embodiment;
FIG. 6 is a schematic block diagram of a system for testing an antenna of a device according to another embodiment;
fig. 7 is a schematic configuration diagram of a system for testing an antenna of a device according to another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
FIG. 2 is a schematic flow chart diagram of a method of testing an antenna of an embodiment; in this embodiment, the method is applied to a test host, which may be a PC, for example.
As shown in fig. 2, the method for testing the device antenna in this embodiment includes the steps of:
s10, a reference threshold corresponding to the transmission signal is acquired.
In the embodiment of the present invention, the determining the reference threshold corresponding to the transmission signal includes: by obtaining a Received Signal Strength value (namely RSSI) of the reference equipment to the transmitted Signal, a reference threshold corresponding to the transmitted Signal is determined according to the Received Signal Strength value of the reference equipment. Of course, a reference threshold value corresponding to the transmission signal preset by the user may also be read;
in an embodiment of the present invention, the reference device is also called a "Golden sample" (Golden sample), which is a device used for calibration and performance passing test in a microwave darkroom.
In the embodiment of the present invention, the obtained RSSI value is the received signal strength of the transmission signal corresponding to the antenna, for example: the received signal strength of the WiFi antenna to the transmitted signal of the WiFi router, the received signal strength of the bluetooth antenna to the transmitted signal of the bluetooth transmitting device, the received signal strength of the GPS antenna to the transmitted signal of the satellite (or GPS signal repeater), the received signal strength of the 2G/3G/4G antenna to the transmitted signal of the real network (or signal amplifier), etc.
S11, obtaining the receiving signal intensity value of the tested device to the sending signal;
preferably, when the reference threshold corresponding to the transmission signal is determined according to the received signal strength value of the reference device, in order to improve the test accuracy, the receiving environments of the reference device and the device under test for the transmission signal are set to be the same, so as to eliminate errors caused by environmental factors.
S12, comparing the received signal strength value of the tested device with a corresponding reference threshold value, and determining whether the antenna of the tested device is qualified according to the comparison result;
as a preferred embodiment, step S12 may be implemented by determining whether the received signal strength value of the device under test is greater than or equal to the corresponding reference threshold; if yes, determining that the antenna of the tested equipment is qualified; if not, determining that the antenna of the tested device is unqualified.
As another preferred embodiment, step S12 may also be implemented by determining whether the deviation between the received signal strength value of the device under test and the corresponding reference threshold is within a set range; if yes, determining that the antenna of the tested equipment is qualified; if not, determining that the antenna of the tested device is unqualified.
In the first mode, a threshold value which should be met by the minimum receiving signal strength value of the sending signal of the equipment to be tested is determined according to the receiving signal strength value of the reference equipment; in the second way, the intermediate reference value of the received signal strength value of the transmitted signal of the tested device is determined according to the received signal strength value of the reference device, and all the deviations within the allowable range can be regarded as normal.
In the embodiment of the present invention, if a manner of determining a reference threshold corresponding to the transmission signal by using the received signal strength value of the reference device is adopted, the corresponding test system structure may be: a test host (e.g., a PC), a reference device communicatively coupled to the test host, and a device under test. The test host acquires and compares the RSSI values of the same transmission signal of the reference device and the tested device, so as to obtain whether the RSSI value of the tested device meets the requirement or not, and only determines whether the antenna of the tested device is qualified or not.
The method for determining the threshold value in real time by the gold machine requires that the gold machine and the tested equipment are connected to the test host in advance. In the test method of the embodiment, one test host can be simultaneously connected with a plurality of gold machines and a plurality of tested devices. The reference threshold value A and the RSSI value B of the tested device when the golden machine is connected are calculated in the following modes:
1) the time data mode: after the measurement is started, the RSSI values of the gold machine and the tested equipment for the same transmission signal are simultaneously obtained, an empirical value e is subtracted from the RSSI value of the gold machine to obtain a reference threshold value A, and the obtained RSSI value of the tested equipment is B.
2) Mean value mode: after the measurement is started, the RSSI values of the gold machine and the tested equipment for the same transmission signal are simultaneously obtained at intervals of T, and n RSSI values are respectively obtained (the gold machine corresponds to the n RSSI values, and the tested equipment also corresponds to the n RSSI values); averaging n RSSI values of the golden machine, subtracting an empirical value e to obtain a reference threshold value A, and averaging the n RSSI values of the tested device to obtain an RSSI value B of the tested device.
3) Sequence-means approach. After the measurement is started, the interval time T is used for simultaneously obtaining RSSI values of the same transmission signal of the gold machine and the tested equipment, respectively obtaining n RSSI values (the gold machine corresponds to the n RSSI values, the tested equipment also corresponds to the n RSSI values), respectively sequencing the n RSSI values of the gold machine and the tested equipment from small to large, removing a minimum value and b maximum values, and averaging the remaining n-a-b values; after n RSSI values of the golden machine are removed from a minimum value and b maximum values, averaging the rest RSSI values, and then subtracting an empirical value e as a reference threshold value A; after a minimum value and a maximum value are removed from n RSSI values acquired by the tested device, averaging the rest RSSI values to be used as an RSSI value B of the tested device.
4) The manner of tolerance. After the measurement is started, the RSSI values of the gold machine and the tested equipment for the same transmission signal are simultaneously obtained at intervals of T, and n RSSI values are respectively obtained (the gold machine corresponds to the n RSSI values, and the tested equipment also corresponds to the n RSSI values). Respectively averaging and variance n RSSI values of the golden machine and the tested equipment, and respectively representing the RSSI values by parameters u and sigma; eliminating data of which the RSSI value is not in the u +/-3 sigma numerical range, solving the average value and the variance of the remaining data, and updating u and sigma until all the remaining RSSI values are in the u +/-3 sigma range; both the "golden machine" and the device under test obtain in this way the final mean u and the variance σ. Calculating the value of u-k sigma (for example, u-sigma or u-2 sigma or u-3 sigma) of the residual data of the 'golden machine', wherein k is an integer greater than or equal to 1 and can be selected according to specific scenes) as a reference threshold value A; and taking the average value u of the processed residual data of the tested device as the RSSI value B of the tested device.
When a plurality of "golden machines" are simultaneously connected to one test host, the reference threshold value a in the above four processing methods is an average value of a values of the plurality of "golden machines".
The antenna test by the method can obtain the following aspects of the antenna of the tested device: 1. whether the antenna matching circuit is in cold joint and missing part; 2. whether the resistance or structural members around the antenna are good; 3. quality problems of the antenna itself (such as antenna breakage); 4. whether the antenna is well welded and assembled.
By the method for testing the equipment antenna, the golden machine and the tested equipment are placed in the same environment, the golden machine sends the obtained RSSI value to the test host machine (or the user inputs an experience value to the test host machine), the upper computer software of the test host machine can determine a reference threshold value A according to the RSSI value, the tested equipment also sends the RSSI value B of a received signal of the tested equipment to the test host machine, and the test host machine compares the reference threshold value A with the test value B to judge whether the antenna of the tested equipment is OK or not and displays the test result on the test host machine. Meanwhile, the test result can be sent to the tested device for storage. Therefore, the antenna testing method does not need a professional comprehensive tester, and is beneficial to controlling the testing cost; when the tested equipment is provided with a plurality of antennas, the plurality of antennas can be checked through the same test host machine, and the purpose that all antennas of the whole machine are tested through one station is achieved; moreover, a plurality of tested devices can be tested simultaneously through the same test host, so that the test time is saved, and the test efficiency is improved; the reference threshold value can be determined by a value input by a user or a received signal strength value of the same sending signal by reference equipment, the test result is accurate, and the test mode is flexible.
FIG. 3 is a schematic flow chart diagram of a method of testing an antenna of a device according to another embodiment; the main differences between this embodiment and the previous embodiment are: in order to improve the test accuracy, when the judgment result of the continuous set times is negative, the antenna of the device to be tested is determined to be unqualified. In this embodiment, a reference threshold corresponding to a transmission signal is determined by using a reference device for a received signal strength value of the same transmission signal.
As shown in fig. 3, the method for testing the device antenna in this embodiment includes the steps of:
s20, obtaining a received signal strength value of the reference equipment to the sending signal, and determining a reference threshold corresponding to the sending signal according to the received signal strength value of the reference equipment;
s21, obtaining the receiving signal intensity value of the tested device to the sending signal;
s22, judging whether the received signal strength value of the tested device is larger than or equal to the reference threshold value; if yes, determining that the antenna of the tested equipment is qualified, and if not, executing the next step;
as another preferred embodiment, this step can be replaced by: judging whether the deviation between the received signal strength value of the tested equipment and the corresponding reference threshold value is in a set range or not; if yes, determining that the antenna of the tested equipment is qualified; if not, executing the next step;
s23, no in the determination result of whether the number of consecutive times is set? If not, returning to execute the step S20, and if so, determining that the antenna of the device to be tested is unqualified.
It can be understood that, in order to improve the test accuracy, the antenna of the device to be tested is determined to be qualified only when the judgment results of the continuous set times are all yes; the principle and the steps are similar to those of the principle and the steps which are determined that the antenna of the tested device is unqualified only if the judgment result of the continuous set times is negative.
It should be noted that, for the sake of simplicity, the foregoing method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention.
Based on the same idea as the method for testing the antenna of the device in the above embodiment, the present invention also provides an apparatus for testing the antenna of the device, which can be used to execute the above method for testing the antenna of the device. For convenience of illustration, only the parts related to the embodiments of the present invention are shown in the schematic structural diagram of the device for testing the antenna of the equipment, and those skilled in the art will understand that the illustrated structure does not constitute a limitation of the system, and may include more or less components than those illustrated, or combine some components, or arrange different components.
FIG. 4 is a schematic block diagram of an apparatus for testing an antenna of a device in accordance with an embodiment of the present invention; as shown in fig. 4, the apparatus for testing an antenna of a device of the present embodiment includes: a signal strength acquisition module 410, a threshold acquisition module 420, and a detection module 430, each of which is described in detail as follows:
the signal strength obtaining module 410 is configured to obtain a received signal strength value of the device under test for the transmission signal;
the threshold obtaining module 420 is configured to obtain a reference threshold corresponding to the transmission signal;
and the detection module 430 is configured to compare the received signal strength value of the device under test with a corresponding reference threshold, and determine whether the antenna of the device under test is qualified according to the comparison result.
The threshold obtaining module 420 is specifically configured to obtain a received signal strength value of the reference device for the transmission signal, and determine a reference threshold corresponding to the transmission signal according to the received signal strength value of the reference device. Of course, the threshold obtaining module 420 may also be configured to read a preset reference threshold corresponding to the sending signal.
Preferably, the detecting module 430 includes a first detecting unit, configured to determine whether a deviation between a received signal strength value of the device under test and a corresponding reference threshold is within a set range; if yes, determining that the antenna of the tested equipment is qualified; if not, determining that the antenna of the tested device is unqualified.
Or, the detecting module 430 includes a second detecting unit, configured to determine whether the received signal strength value of the device under test is greater than or equal to a corresponding reference threshold; if yes, determining that the antenna of the tested equipment is qualified; if not, determining that the antenna of the tested device is unqualified.
Further, the detecting module 430 further includes: the continuous detection unit is used for controlling the first detection unit or the second detection unit to perform corresponding judgment again according to the re-acquired received signal intensity value of the tested equipment and the corresponding reference threshold value if the detection result of the first detection unit or the second detection unit is negative, until the judgment result of the first detection unit or the second detection unit for continuously setting times is negative; and determining that the antenna of the device to be tested is unqualified.
Preferably, the threshold obtaining module 420 includes: the device comprises a first threshold value determining unit, a second threshold value determining unit and a control unit, wherein the first threshold value determining unit is used for acquiring the received signal strength values of the same reference equipment to the same transmitted signal according to a set time interval and calculating the average value of the acquired n signal strength values, wherein n is an integer greater than or equal to 2; and subtracting a preset empirical value from the average value to obtain a reference threshold value.
Preferably, the threshold obtaining module 420 includes: the second threshold value determining unit is used for acquiring the received signal strength value of the same reference device to the same transmitted signal according to a set time interval; sequencing the acquired n received signal strength values from small to large, wherein n is an integer greater than or equal to 2; deleting a received signal strength values which are sequenced at the front and b received signal strength values which are sequenced at the back, wherein a and b are natural numbers, and at least one of a and b is more than or equal to 1; and calculating the average value of the remaining n-a-b received signal strength values, and subtracting a preset empirical value from the average value to obtain a reference threshold value.
Preferably, the threshold obtaining module 420 includes: a third threshold determination unit, configured to determine a reference threshold corresponding to the transmission signal as follows:
step 11, obtaining the received signal strength values of the same transmitted signal by the reference device according to a set time interval, and calculating the average value and variance of the obtained n received signal strength values, wherein n is an integer greater than or equal to 2 and is respectively represented by parameters u and sigma; judging whether the acquired received signal strength values are all in the u +/-3 sigma numerical range, if not, deleting the corresponding received signal strength values, executing the next step, and if so, entering the step 13;
step 12, recalculating the average value and variance of the remaining received signal strength values, and updating u and sigma; judging whether the remaining received signal strength values are all in the u +/-3 sigma numerical range, if not, deleting the corresponding received signal strength value, re-executing the step, and if so, executing the next step;
step 13, calculating a value of u-k sigma, and taking the value as a reference threshold; wherein k is an integer of 1 or more.
Preferably, the threshold obtaining module 420 further includes: and the fourth threshold determining unit is used for acquiring the reference thresholds corresponding to more than two reference devices respectively and calculating the average value of the reference thresholds as the current reference threshold.
On the other hand, the signal strength obtaining module 410 includes: the first obtaining unit is used for obtaining the received signal strength value of the same sending signal of the same tested device according to a set time interval, calculating the average value of the obtained n signal strength values of the tested device, wherein n is an integer greater than or equal to 2, and taking the average value as the received signal strength value of the sending signal of the tested device.
Preferably, the signal strength obtaining module 410 includes: the second acquisition unit is used for acquiring the received signal strength value of the same equipment to be tested to the same transmitted signal according to a set time interval; sequencing n received signal strength values of the obtained tested equipment from small to large, wherein n is an integer greater than or equal to 2, and deleting a received signal strength value which is sequenced in the front and b received signal strength values which are sequenced in the back; and calculating the average value of the remaining n-a-b received signal strength values, and taking the average value as the received signal strength value of the device to be tested to the sending signal.
Preferably, the signal strength obtaining module 410 includes: a third obtaining unit, configured to obtain a received signal strength value of the transmitted signal by the device under test in the following manner:
step 21, obtaining the received signal strength values of the same sending signal of the same tested device according to a set time interval, and calculating the average value and the variance of the obtained n received signal strength values of the tested device, wherein n is an integer greater than or equal to 2 and is respectively represented by parameters u1 and sigma 1; judging whether the received signal strength values of the obtained tested equipment are all in the u1 +/-3 sigma 1 numerical range, if not, deleting the corresponding received signal strength values, executing the next step, and if so, entering the step 23;
step 22, recalculating the mean value and variance of the received signal strength values of the rest of the tested devices, and updating u1 and sigma 1; judging whether the received signal strength values of the rest tested equipment are all in the u1 +/-3 sigma 1 numerical range, if not, deleting the corresponding received signal strength value, re-executing the step, and if so, executing the next step;
and step 23, taking the average value u1 as the received signal strength value of the device to be tested for the sending signal.
FIG. 5 is a schematic block diagram of a system for testing an antenna of a device in accordance with one embodiment; the system for testing the equipment antenna comprises: the device comprises a test host, reference equipment and a tested device, wherein the reference equipment and the tested device are in communication connection with the test host. During testing, the reference equipment and the tested equipment respectively acquire the received signal strength value of a transmitted signal and transmit the received signal strength value to the test host; and the test host determines a reference threshold corresponding to the sending signal through the received signal strength value of the reference device, and compares the received signal strength value of the tested device with the reference threshold to determine whether the antenna of the tested device is qualified. Of course, the test host can also directly read the preset reference threshold corresponding to the sending signal.
In the embodiment of the present invention, the reference device is also referred to as "golden machine", which is specifically described in the above embodiment; the test host can be in communication connection with the reference equipment and the tested equipment through a USB interface. Preferably, the test host may be a PC, and one PC may simultaneously test a plurality of devices under test, that is, a plurality of devices under test are simultaneously connected to the PC, and the PC may simultaneously obtain RSSI values of the plurality of devices under test and determine a test result of each test through upper software. As shown in fig. 6, when there are many devices under test, due to the limitation of the USB port of the PC, it is necessary to add a USB HUB on the PC to add a test channel, and the added USB HUB supports at most 127 external devices ("golden machine" and devices under test) for access.
As another preferred embodiment, the system also supports a non-USB communication interface, and when the communication interface of the device under test is a non-USB interface, the non-USB interface can be transferred to the UCB interface of the PC or other PC interfaces through the interface transfer device.
Namely, the test host is in communication connection with the reference device and the device to be tested through the interface conversion device. Preferably, as shown in fig. 7, the test host can be simultaneously connected to a plurality of reference devices and a plurality of devices to be tested through the interface conversion device.
As a preferred embodiment, the antenna of the reference device is of the same type as the antenna of the device under test. For example, if the antenna of the device to be tested is a 2G antenna, the antenna of the reference device also needs to select a corresponding 2G antenna; if the antenna of the device to be tested is a 4G antenna, the antenna of the reference device also needs to select a corresponding 4G antenna.
It should be noted that, in the embodiment of the present invention, the reference device and the device under test may receive and send information synchronously to determine whether the antenna of the device under test is qualified; in this case, a synchronization module is disposed in the test host to control the reference device and the device under test to synchronously receive and transmit signals. The sending information can also be received by the reference device in advance, the reference threshold value is determined, and the sending information is only received by the tested device in the subsequent test, so that the data processing amount of the test host can be reduced.
It should be noted that, in the above-mentioned embodiment of the apparatus for testing an antenna of a device, because the contents of information interaction, execution process, and the like between modules/units are based on the same concept as the foregoing method embodiment of the present invention, the technical effect brought by the contents is the same as the foregoing method embodiment of the present invention, and specific contents may refer to the description in the method embodiment of the present invention, and are not described herein again.
In addition, in the above-mentioned embodiment of the device for testing an antenna of a device, the logical division of the functional modules is only an example, and in practical applications, the above-mentioned function distribution may be performed by different functional modules according to needs, for example, due to configuration requirements of corresponding hardware or due to convenience of implementation of software, that is, the internal structure of the device for testing an antenna of a device is divided into different functional modules to perform all or part of the above-mentioned functions. The functional modules can be realized in a hardware mode or a software functional module mode.
It will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program, which is stored in a computer readable storage medium and sold or used as a stand-alone product. The program, when executed, may perform all or a portion of the steps of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. It will be understood that the terms "first," "second," and the like as used herein are used herein to distinguish one object from another, but the objects are not limited by these terms.
The above-described examples merely represent several embodiments of the present invention and should not be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. A method of testing a device antenna, comprising:
acquiring a received signal strength value of a device to be tested on a transmitted signal, and acquiring a reference threshold corresponding to the transmitted signal;
comparing the received signal strength value of the tested equipment with a corresponding reference threshold value, and determining whether the antenna of the tested equipment is qualified or not according to the comparison result;
the step of acquiring the reference threshold corresponding to the transmission signal includes:
and acquiring a received signal strength value of the reference equipment to the sending signal, and determining a reference threshold corresponding to the sending signal according to the received signal strength value of the reference equipment.
2. The method of claim 1, wherein comparing the received signal strength value of the device under test with a corresponding reference threshold value, and determining whether the device under test antenna is acceptable according to the comparison comprises:
judging whether the received signal strength value of the tested equipment is greater than or equal to the corresponding reference threshold value or not; if yes, determining that the antenna of the tested equipment is qualified; if not, determining that the antenna of the tested device is unqualified;
or,
judging whether the deviation between the received signal strength value of the tested equipment and the corresponding reference threshold value is in a set range or not; if yes, determining that the antenna of the tested equipment is qualified; if not, determining that the antenna of the tested device is unqualified.
3. The method of claim 2, wherein if no, determining that the device under test antenna is not acceptable comprises:
if not, re-acquiring the received signal strength value of the transmitted signal and the corresponding reference threshold value of the tested device and performing corresponding judgment again until the judgment results of the continuous set times are all negative; and determining that the antenna of the device to be tested is unqualified.
4. The method of claim 1, wherein determining the reference threshold corresponding to the transmitted signal based on the received signal strength value of the reference device comprises:
and subtracting a set empirical value from the received signal strength value of the reference equipment to obtain a reference threshold value.
5. The method of claim 1, wherein obtaining a received signal strength value of the reference device for the transmitted signal, and wherein determining the reference threshold corresponding to the transmitted signal based on the received signal strength value of the reference device comprises:
and obtaining the received signal strength value of the same transmitted signal by the reference equipment according to a set time interval, calculating the average value of the obtained n signal strength values, wherein n is an integer greater than or equal to 2, and subtracting a preset empirical value from the average value to obtain a reference threshold value.
6. The method of claim 1, wherein obtaining a received signal strength value of the reference device for the transmitted signal, and wherein determining the reference threshold corresponding to the transmitted signal based on the received signal strength value of the reference device comprises:
acquiring a received signal strength value of the same reference equipment to the same transmitted signal according to a set time interval;
sequencing the acquired n received signal strength values from small to large, wherein n is an integer greater than or equal to 2; deleting a received signal strength values which are sequenced at the front and b received signal strength values which are sequenced at the back, wherein a and b are natural numbers, and at least one of a and b is more than or equal to 1;
and calculating the average value of the remaining n-a-b received signal strength values, and subtracting a preset empirical value from the average value to obtain a reference threshold value.
7. The method of claim 1, wherein obtaining a received signal strength value of the reference device for the transmitted signal, and wherein determining the reference threshold corresponding to the transmitted signal based on the received signal strength value of the reference device comprises:
step 11, obtaining the received signal strength values of the same transmitted signal by the reference device according to a set time interval, and calculating the average value and variance of the obtained n received signal strength values, wherein n is an integer greater than or equal to 2 and is respectively represented by parameters u and sigma; judging whether the acquired received signal strength values are all in the u +/-3 sigma numerical range, if not, deleting the corresponding received signal strength values, executing the next step, and if so, entering the step 13;
step 12, recalculating the average value and variance of the remaining received signal strength values, and updating u and sigma; judging whether the remaining received signal strength values are all in the u +/-3 sigma numerical range, if not, deleting the corresponding received signal strength value, re-executing the step, and if so, executing the next step;
step 13, calculating a value of u-k sigma, and taking the value as a reference threshold; wherein k is an integer of 1 or more.
8. The method according to any one of claims 2 to 7, wherein obtaining a received signal strength value of the reference device for the transmission signal, and determining the reference threshold corresponding to the transmission signal according to the received signal strength value of the reference device further comprises:
and acquiring reference thresholds corresponding to more than two reference devices respectively, and calculating the average value of the reference thresholds as the reference threshold corresponding to the sending signal.
9. The method of claim 1 or 5, wherein the step of obtaining the received signal strength value of the device under test for the transmitted signal comprises:
and obtaining the received signal strength value of the same sending signal of the same tested device according to a set time interval, calculating the average value of the obtained n signal strength values of the tested device, wherein n is an integer greater than or equal to 2, and taking the average value as the received signal strength value of the sending signal of the tested device.
10. The method of claim 1 or 6, wherein the step of obtaining the received signal strength value of the device under test for the transmitted signal comprises:
acquiring the received signal strength value of the same sending signal of the same tested device according to a set time interval; sequencing n received signal strength values of the obtained tested equipment from small to large, wherein n is an integer greater than or equal to 2, and deleting a received signal strength value which is sequenced in the front and b received signal strength values which are sequenced in the back; and calculating the average value of the remaining n-a-b received signal strength values, and taking the average value as the received signal strength value of the device to be tested to the sending signal.
11. The method of claim 1 or 7, wherein the step of obtaining the received signal strength value of the device under test for the transmitted signal comprises:
step 21, obtaining the received signal strength values of the same sending signal of the same tested device according to a set time interval, and calculating the average value and the variance of the obtained n received signal strength values of the tested device, wherein n is an integer greater than or equal to 2 and is respectively represented by parameters u1 and sigma 1; judging whether the received signal strength values of the obtained tested equipment are all in the u1 +/-3 sigma 1 numerical range, if not, deleting the corresponding received signal strength values, executing the next step, and if so, entering the step 23;
step 22, recalculating the mean value and variance of the received signal strength values of the rest of the tested devices, and updating u1 and sigma 1; judging whether the received signal strength values of the rest tested equipment are all in the u1 +/-3 sigma 1 numerical range, if not, deleting the corresponding received signal strength value, re-executing the step, and if so, executing the next step;
and step 23, taking the average value u1 as the received signal strength value of the device to be tested for the sending signal.
12. An apparatus for testing an antenna of a device, comprising:
the signal intensity acquisition module is used for acquiring the received signal intensity value of the equipment to be tested to the sending signal;
a threshold value obtaining module, configured to obtain a reference threshold value corresponding to the transmission signal;
the detection module is used for comparing the received signal strength value of the tested equipment with a corresponding reference threshold value and determining whether the antenna of the tested equipment is qualified or not according to the comparison result;
the acquiring a reference threshold corresponding to the transmission signal includes: and acquiring a received signal strength value of the reference equipment to the sending signal, and determining a reference threshold corresponding to the sending signal according to the received signal strength value of the reference equipment.
13. The apparatus for testing a device antenna of claim 12, wherein the detection module comprises:
the first detection unit is used for judging whether the received signal strength value of the tested equipment is greater than or equal to a corresponding reference threshold value or not; if yes, determining that the antenna of the tested equipment is qualified; if not, determining that the antenna of the tested device is unqualified;
or, the second detection unit is used for judging whether the deviation between the received signal strength value of the tested device and the corresponding reference threshold value is within a set range; if yes, determining that the antenna of the tested equipment is qualified; if not, determining that the antenna of the tested device is unqualified;
the detection module further comprises:
the continuous detection unit is used for controlling the first detection unit or the second detection unit to perform corresponding judgment again according to the re-acquired received signal intensity value of the tested equipment and the corresponding reference threshold value if the detection result of the first detection unit or the second detection unit is negative, until the judgment result of the first detection unit or the second detection unit for continuously setting times is negative; and determining that the antenna of the device to be tested is unqualified.
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