CN114584228B

CN114584228B - Wifi production test calibration system and method and electronic equipment

Info

Publication number: CN114584228B
Application number: CN202210480411.XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Chengdu Aich Technology Co Ltd
Current assignee: Chengdu Aich Technology Co Ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-07-08
Anticipated expiration: 2042-05-05
Also published as: CN114584228A

Abstract

The invention discloses a wifi production test calibration system, a method and electronic equipment, and relates to the field of wifi automatic testing. The system comprises: the control panel and the equipment to be tested are connected with each other; under the self-calibration condition, the control unit is used for controlling the equipment to be tested to send the calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch; the signal testing unit is used for determining the corresponding relation of the calibration performance parameter signal to be tested and/or the corresponding performance parameter based on the calibration signal to be tested; the control unit is also used for controlling the equipment to be tested to send a target calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch when the equipment to be tested is produced in batches; the signal testing unit is used for determining target performance parameters based on the target to-be-tested calibration performance parameter signals and the corresponding relation, and the testing system can be self-calibrated through the to-be-tested equipment, so that the testing accuracy is improved, and the efficiency and the accuracy of wifi production testing calibration are improved.

Description

Wifi production test calibration system and method and electronic equipment

Technical Field

The invention relates to the field of wifi automatic testing, in particular to a wifi production test calibration system, a wifi production test calibration method and electronic equipment.

Background

With the popularization of wifi and the expansion of long time occupancy, a large number of wifi products are produced on the market.

Most of the existing wifi production automatic tests rely on imported instruments such as Latetter and Roderschwarz, the more production lines need more instrument resources, the more accurate measurement calibration precision is low, the high price of the instruments brings high cost to production, the wifi production test cost is high, the efficiency is low, and the stability and the reliability of the wifi production test calibration are reduced.

Disclosure of Invention

The invention aims to provide a wifi production test calibration system, a wifi production test calibration method and electronic equipment, and aims to solve the problems of high cost and low efficiency of the existing wifi production test.

In a first aspect, the present invention provides a wifi production test calibration system, the system comprising:

the control panel and the equipment to be tested are connected with each other; the control panel comprises a control unit, a signal testing unit and a radio frequency switch which are sequentially connected with one another;

under the condition of self calibration, the control unit is used for controlling the equipment to be tested to send a calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch;

the signal testing unit is used for determining the corresponding relation of a to-be-tested calibration performance parameter signal and/or a corresponding performance parameter based on the to-be-tested calibration signal;

under the condition that the calibration signal to be tested is calibrated, the control unit is further used for controlling the equipment to be tested to send a target calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch when the equipment to be tested is produced in batches;

the signal testing unit is used for determining a target performance parameter based on the target calibration performance parameter signal to be tested and the corresponding relation;

the calibration performance parameters to be measured and the target calibration performance parameters to be measured both include: a power calibration parameter, a frequency offset calibration parameter and a receiving sensitivity calibration parameter; the target performance parameters include a power parameter, a frequency offset parameter, and a receive sensitivity parameter.

Under the condition of adopting the technical scheme, the system comprises a control panel and equipment to be tested which are connected with each other; the control panel comprises a control unit, a signal testing unit and a radio frequency switch which are sequentially connected with one another; under the condition of self calibration, the control unit is used for controlling the equipment to be tested to send a calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch; the signal testing unit is used for determining the corresponding relation of a to-be-tested calibration performance parameter signal and/or a corresponding performance parameter based on the to-be-tested calibration signal; under the condition that the calibration signal to be tested is calibrated, the control unit is further used for controlling the equipment to be tested to send a target calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch when the equipment to be tested is produced in batches; the signal testing unit is used for determining a target performance parameter based on the target calibration performance parameter signal to be tested and the corresponding relation; the calibration performance parameters to be measured and the target calibration performance parameters to be measured both include: a power calibration parameter, a frequency offset calibration parameter and a receiving sensitivity calibration parameter; the target performance parameters comprise power parameters, frequency deviation parameters and receiving sensitivity parameters, and the testing system can be calibrated in a self-calibration mode through the equipment to be tested, so that the testing accuracy is improved ingeniously, further, due to the improvement of the accuracy, the equipment to be tested can be calibrated through an accurate result, and the parameters of the equipment to be tested are more accurate.

In a possible implementation manner, the signal testing unit includes a first signal testing subunit, one end of the first signal testing subunit is connected to the control unit, and the other end of the first signal testing subunit is connected to the radio frequency switch;

under the self-calibration condition, the control unit is configured to control the device under test to send a calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch, and includes:

under the condition of self-calibrating the power calibration parameters, the control unit is used for controlling the power of the equipment to be tested in different modes and different speed states to be sent to the first signal testing subunit through the radio frequency switch;

the signal testing unit is used for determining the corresponding relation of the calibration performance parameter signal to be tested and/or the corresponding performance parameter based on the calibration signal to be tested, and comprises the following steps:

the first signal testing subunit is configured to read power signal strength values corresponding to different rate states in the different modes;

the first signal testing subunit is further configured to generate a corresponding mapping relationship between the power signal strength value and the power based on the plurality of power signal strength values and the power sent by the device to be tested;

under the condition that the calibration signal to be tested completes the calibration, the control unit is further configured to control the device to be tested to send the target calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch during batch production of the device to be tested, including:

when the device to be tested is produced in batches, the control unit is further used for controlling the device to be tested to send the power in different modes and different speed states to the first signal testing subunit through the radio frequency switch;

the signal testing unit is used for determining a target performance parameter based on the target calibration performance parameter signal to be tested and the corresponding relation, and comprises:

the first signal testing subunit is configured to read current power signal strength values corresponding to different rate states in different modes;

the first signal testing subunit is further configured to determine a transmit power calibration value of the device under test based on a plurality of current power signal strength values and a corresponding mapping relationship between power and power generated when the power calibration parameter is subjected to self calibration, so as to complete parameter calibration based on the transmit power calibration value, and determine transmit power.

In a possible implementation manner, the signal testing unit further includes a second signal testing subunit, one end of the second signal testing subunit is connected to the first signal testing subunit, and the other end of the second signal testing subunit is connected to the device to be tested through the radio frequency switch;

under the condition of self-calibrating the frequency offset calibration parameters of the device to be tested, the control unit is used for controlling the device to be tested to send frequency information to the second signal testing subunit through the radio frequency switch;

the second signal testing subunit is used for reading a frequency value corresponding to the device to be tested;

under the condition that the frequency offset calibration parameter is calibrated, the control unit is further configured to control the device to be tested to send a target calibration performance parameter signal to the signal testing unit through the radio frequency switch during batch production of the device to be tested, including:

when the to-be-tested equipment is produced in batches, the control unit is used for controlling the to-be-tested equipment to send the current frequency value to the second signal testing subunit through the radio frequency switch;

the second signal testing subunit is used for reading a current frequency value;

the second signal testing subunit is further configured to determine, based on the frequency value and the current frequency value, a frequency offset calibration parameter of the device under test, so as to calibrate the device under test based on the frequency offset calibration parameter.

In a possible implementation manner, in the case of self-calibration, the controlling unit is configured to control the device under test to send a calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch, and includes:

under the condition of self-calibrating the receiving sensitivity calibration parameter, the control unit is used for controlling the device to be tested and the first signal testing subunit to build a link, continuously reducing the power of the first signal testing subunit according to a preset value until the link is disconnected, and determining the first power sent by the first signal testing subunit when the link is disconnected;

the first signal testing subunit is configured to determine the first power as a receive sensitivity threshold;

when the device to be tested is produced in batches, the control unit is further used for controlling the first signal testing subunit to determine a target power based on the first power;

the first signal testing subunit is configured to control the first signal testing subunit to build a link based on the target power and the device to be tested, and if the link is passed through, determine that the receive sensitivity parameter corresponding to the target power is a target sensitivity parameter.

In a possible implementation manner, the control board further includes a first communication interface connected with the control unit, and the device to be tested includes a main control unit, and a second communication interface and a wifi unit to be tested, which are respectively connected with the main control unit; the first communication interface is connected with the second communication interface; the signal testing unit is connected with the wifi unit to be tested.

In a possible implementation manner, the control board further includes a debugging serial port unit connected with the control unit, and the debugging serial port unit is used for debugging the control board.

In a possible implementation mode, the system further comprises an attenuator, one end of the attenuator is connected with the radio frequency switch, and the other end of the attenuator is connected with the wifi unit to be tested.

In a second aspect, the present invention further provides a wifi production test calibration method, which is applied to any one of the wifi production test calibration systems in the first aspect, and the method includes:

under the condition of self calibration, the control unit controls the equipment to be tested to send a calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch;

the signal testing unit determines a corresponding relation of a to-be-tested calibration performance parameter signal and/or a corresponding performance parameter based on the to-be-tested calibration signal;

under the condition that the calibration signal to be tested is calibrated, the control unit controls the equipment to be tested to send a target calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch when the equipment to be tested is produced in batches;

the signal testing unit determines a target performance parameter based on the target calibration performance parameter signal to be tested and the corresponding relation;

the calibration performance parameters to be measured and the target calibration performance parameters to be measured both include: power calibration parameters, frequency offset calibration parameters and receiving sensitivity calibration parameters; the target performance parameters include a power parameter, a frequency offset parameter, and a receive sensitivity parameter.

In a possible implementation manner, in the case of self-calibration, the controlling unit controls the device under test to send a calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch, including:

under the condition of self-calibrating the frequency offset calibration parameters of the equipment to be tested, the control unit controls the equipment to be tested to send frequency information to the second signal testing subunit through the radio frequency switch;

the signal testing unit determines the corresponding relation of the calibration performance parameter signal to be tested and/or the corresponding performance parameter based on the calibration signal to be tested, and the method comprises the following steps:

the second signal testing subunit reads a frequency value corresponding to the device to be tested;

under the condition that the frequency offset calibration parameters are calibrated, the control unit controls the device to be tested to send target calibration performance parameter signals to the signal testing unit through the radio frequency switch when the device to be tested is produced in batches, and the method comprises the following steps:

when the equipment to be tested is produced in batches, the control unit controls the equipment to be tested to send the current frequency value to the second signal testing subunit through the radio frequency switch;

the signal testing unit determines a target performance parameter based on the target calibration performance parameter to be tested signal and the corresponding relationship, and includes:

the second signal testing subunit reads the current frequency value;

and the second signal testing subunit determines a frequency offset calibration parameter of the device to be tested based on the frequency value and the current frequency value, so as to calibrate the device to be tested based on the frequency offset calibration parameter.

under the condition of self-calibrating the power calibration parameters, the control unit controls the power of the equipment to be tested in different modes and different speed states to be sent to the first signal testing subunit through the radio frequency switch;

the first signal testing subunit reads power signal strength values corresponding to different speed states in different modes;

the first signal testing subunit generates a corresponding mapping relation between the power signal strength value and the power based on the plurality of power signal strength values and the power sent by the equipment to be tested;

under the condition that the calibration signal to be tested completes calibration, the control unit controls the equipment to be tested to send a target calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch when the equipment to be tested is subjected to batch production, and the method comprises the following steps:

when the equipment to be tested is produced in batches, the control unit controls the equipment to be tested to send power in different modes and different speed states to the first signal testing subunit through the radio frequency switch;

the first signal testing subunit reads the current power signal strength values corresponding to the different speed states in the different modes;

the first signal testing subunit determines a transmission power calibration value of the device to be tested based on a plurality of current power signal strength values and a corresponding mapping relationship between a power signal strength value and power generated under the condition of self-calibrating the power calibration parameter, so as to complete parameter calibration based on the transmission power calibration value and determine transmission power.

under the condition of self-calibrating the receiving sensitivity calibration parameter, the control unit controls the device to be tested and the first signal testing subunit to build a link, continuously reduces the power of the first signal testing subunit according to a preset value until the link is disconnected, and determines the first power sent by the first signal testing subunit when the link is disconnected;

the first signal testing subunit determines the first power as a receive sensitivity threshold;

under the condition that calibration is accomplished to the calibration signal that awaits measuring, the control unit is right when the equipment to be measured carries out batch production, control equipment to be measured passes through radio frequency switch with the target calibration performance parameter signal that awaits measuring send to signal test unit includes:

when the device to be tested is produced in batches, the control unit controls the first signal testing subunit to determine target power based on the first power;

and the first signal testing subunit controls the first signal testing subunit to build a link based on the target power and the device to be tested, and if the link passes through the building, the receiving sensitivity parameter corresponding to the target power is determined as a target sensitivity parameter.

The beneficial effects of the wifi production test calibration method provided by the second aspect are the same as the beneficial effects of the wifi production test calibration system described in the first aspect or any possible implementation manner of the first aspect, and are not repeated here.

In a third aspect, the present invention also provides an electronic device, including: one or more processors; and one or more machine readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform the wifi production test calibration method described in any of the possible implementations of the second aspect.

The beneficial effect of the electronic device provided by the third aspect is the same as that of the wifi production test calibration method described in the second aspect or any possible implementation manner of the second aspect, and details are not repeated here.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic flow chart of a wifi production test calibration system provided in an embodiment of the present application;

FIG. 2 is a schematic flowchart illustrating another wifi production test calibration system provided in an embodiment of the present application;

FIG. 3 is a schematic flow chart illustrating another wifi production test calibration method provided by the embodiments of the present application;

FIG. 4 is a schematic flow chart illustrating another wifi production test calibration method provided by the embodiments of the present application;

FIG. 5 is a schematic flowchart illustrating a further wifi production test calibration method provided in the embodiments of the present application;

fig. 6 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a chip according to an embodiment of the present invention.

Reference numerals are as follows:

10-a control panel; 101-a control unit; 102-a signal test unit; 103-a radio frequency switch; 20-equipment to be tested; 201-a master control unit; 202-a second communication interface; 203, a wifi unit to be tested; 1021-a first signal testing subunit; 1022 — a second signal testing subunit; 104-a first communication interface; 105-a serial unit; 106-an attenuator; 500-an electronic device; 510-a processor; 520-a communication interface; 530-a memory; 540 — a communication line; 600-a chip; 640-bus system.

Detailed Description

In order to facilitate clear description of technical solutions of the embodiments of the present invention, in the embodiments of the present invention, words such as "first" and "second" are used to distinguish identical items or similar items with substantially the same functions and actions. For example, the first threshold and the second threshold are only used for distinguishing different thresholds, and the sequence order of the thresholds is not limited. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

It is to be understood that the terms "exemplary" or "such as" are used herein to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "such as" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the present invention, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a and b combination, a and c combination, b and c combination, or a, b and c combination, wherein a, b and c can be single or multiple.

Fig. 1 shows a schematic flowchart of a wifi (Wireless local area network) production test calibration system provided in an embodiment of the present application, and as shown in fig. 1, the wifi production test calibration system includes:

the control panel 10 and the device under test 20 are connected with each other; the control board 10 comprises a control unit 101, a signal testing unit 102 and a radio frequency switch 103 which are sequentially connected with one another;

under the self-calibration condition, the control unit 101 is configured to control the device under test 20 to send a calibration performance parameter signal to be tested to the signal testing unit 102 through the radio frequency switch 103;

the signal testing unit 102 is configured to determine a corresponding relationship between a to-be-calibrated performance parameter signal and/or a corresponding performance parameter based on the to-be-calibrated signal;

under the condition that the calibration signal to be tested is calibrated, the control unit 101 is further configured to control the device to be tested 20 to send a target calibration performance parameter signal to be tested to the signal testing unit 102 through the radio frequency switch 103 when the device to be tested 20 is produced in batches;

the signal testing unit 102 is configured to determine a target performance parameter based on the target calibration performance parameter to be tested signal and the corresponding relationship;

The device to be tested comprises a wifi unit, the specific model of the wifi unit is not limited in the embodiment of the application, and marking adjustment can be carried out according to actual application scenes.

To sum up, wifi production test calibration system that this application embodiment provided, the system includes: the control panel and the equipment to be tested are connected with each other; the control panel comprises a control unit, a signal testing unit and a radio frequency switch which are sequentially connected with one another; under the condition of self calibration, the control unit is used for controlling the equipment to be tested to send a calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch; the signal testing unit is used for determining the corresponding relation of a to-be-tested calibration performance parameter signal and/or a corresponding performance parameter based on the to-be-tested calibration signal; under the condition that the calibration signal to be tested is calibrated, the control unit is further used for controlling the equipment to be tested to send a target calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch when the equipment to be tested is produced in batches; the signal testing unit is used for determining a target performance parameter based on the target calibration performance parameter signal to be tested and the corresponding relation; the calibration performance parameters to be measured and the target calibration performance parameters to be measured both include: a power calibration parameter, a frequency offset calibration parameter and a receiving sensitivity calibration parameter; the target performance parameters comprise power parameters, frequency deviation parameters and receiving sensitivity parameters, and the testing system can be calibrated in a self-calibration mode through the equipment to be tested, so that the testing accuracy is improved ingeniously, further, due to the improvement of the accuracy, the equipment to be tested can be calibrated through an accurate result, and the parameters of the equipment to be tested are more accurate.

Fig. 2 is a schematic flow chart of another wifi production test calibration system provided in the embodiment of the present application, and as shown in fig. 2, the wifi production test calibration system includes:

the control panel 10 and the device under test 20 are connected with each other; the control board 10 comprises a control unit 101, a signal testing unit 102 and a radio frequency switch 103 which are connected with each other in sequence;

In the application, the performance parameter to be calibrated refers to a wifi radio frequency performance parameter.

Referring to fig. 2, the control board 10 further includes a first communication interface 104 connected to the control unit 101, and the device under test 20 includes a main control unit 201, and a second communication interface 202 and a wifi unit under test 203 respectively connected to the main control unit 201; the first communication interface 104 is connected to the second communication interface 202; the signal testing unit 102 is connected with the wifi unit 203 to be tested.

Referring to fig. 2, the control board 10 further includes a debugging serial port unit 105 connected to the control unit 101, and the debugging serial port unit 105 is configured to debug the control board 10.

The control panel still includes red light, green light and button, and red light, green light and button all are connected with the control unit.

The control unit is connected with the first signal testing subunit through the communication interface, the control unit is connected with the second signal testing subunit through the communication interface, and the control unit is connected with the second signal testing subunit through the communication interface.

Referring to fig. 2, the system further includes an attenuator 106, one end of the attenuator 106 is connected to the radio frequency switch 103, and the other end of the attenuator 106 is connected to the wifi unit 203 to be tested.

Optionally, referring to fig. 2, the signal testing unit 102 includes a first signal testing subunit 1021, one end of the first signal testing subunit 1021 is connected to the control unit 101, and the other end of the first signal testing subunit 1021 is connected to the rf switch 103;

the first signal testing subunit is further configured to generate a corresponding mapping relationship between the power signal strength value and the power based on the plurality of power signal strength values and the power sent by the device under test.

In the application, self calibration can guarantee the test accuracy of the system in different environments at different periods.

The mapping relationship between the power signal strength value and the power may exist in a form of a table, which is not specifically limited in this embodiment of the application.

Referring to fig. 2, the signal testing unit 102 further includes a second signal testing subunit 1022, one end of the second signal testing subunit 1022 is connected to the first signal testing subunit 1021, and the other end of the second signal testing subunit 1022 is connected to the device under test 20 through the radio frequency switch 103;

And when the frequency offset is tested, the frequency information F of the gold plate is tested and recorded. During production, the DUT sends a test signal, the test unit calculates frequency information F1 of the signal, and Δ F = F-F1 is obtained as the frequency offset of the DUT.

Optionally, under the condition of performing self-calibration on the receiving sensitivity calibration parameter, the control unit is configured to control the device to be tested and the first signal testing subunit to establish a link, continuously reduce the power of the first signal testing subunit according to a preset value until the link is disconnected, and determine the first power sent by the first signal testing subunit when the link is disconnected;

the first signal testing subunit is configured to control the first signal testing subunit to build a link based on the target power and the device to be tested, and if the link passes through the building, determine that a receiving sensitivity parameter corresponding to the target power is a target sensitivity parameter.

If the link establishment fails, the sensitivity of the corresponding device to be tested is abnormal, and corresponding indication information can be generated to inform workers.

Specifically, the target power may be obtained by adding a preset value to the first power, where the preset value may be 3 decibel-milliwatt (dBm), and this is not specifically limited in this embodiment of the present application.

In the present application, the device under test under the self-calibration condition is also a gold plate, and the gold plate is also a device under test as a mass production product. The performance index parameters of the gold plate need to be debugged independently, and the measured value is very close to the value required by theory. And the test value of the gold plate is used as a reference standard in the calibration. Different wifi products need to select and debug a gold plate as the gold plate of this product calibration if using this system.

The power of the golden plate is actually measured with an error less than or equal to +/-0.5 dB under the condition of different rates of different modes. The measured value of the frequency deviation is less than or equal to +/-1 KHz, and the index of the receiving sensitivity needs to meet the index requirement of the product.

In this application, can treat that equipment for testing's power and frequency offset calibrate, write measured deviation value into equipment for testing as the offset value during the calibration, let equipment for testing's power and frequency offset parameter set up according to the calibration value after adding the compensation when leaving the factory, guarantee more accurately.

The wifi production test calibration system of this application can test different producers' wifi.

Fig. 3 is a schematic flow chart of another wifi production test calibration method provided in this embodiment of the present application, which is applied to the wifi production test calibration system described in any one of fig. 1 to fig. 2, and as shown in fig. 3, the method includes:

step 301: under the condition of self calibration, the control unit controls the equipment to be tested to send a calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch.

Under the self-calibration condition, after the control unit controls the device under test to send the calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch, step 302 is executed.

Step 302: and the signal testing unit determines the corresponding relation of the calibration performance parameter signal to be tested and/or the corresponding performance parameter based on the calibration signal to be tested.

After the signal testing unit determines the corresponding relationship of the calibration performance parameter signal to be tested and/or the corresponding performance parameter based on the calibration signal to be tested, step 303 is executed.

Step 303: under the condition that the calibration signal to be tested is calibrated, the control unit controls the equipment to be tested to send a target calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch when the equipment to be tested is subjected to batch production.

Under the condition that the calibration signal to be tested is calibrated, the control unit controls the equipment to be tested to send a target calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch when the equipment to be tested is produced in batches, and then step 304 is executed.

Step 304: the signal testing unit determines a target performance parameter based on the target calibration performance parameter to be tested signal and the corresponding relationship.

In summary, in the wifi production test calibration method provided in the embodiment of the present application, under the self-calibration condition, the control unit is configured to control the device under test to send a calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch; the signal testing unit is used for determining the corresponding relation of a to-be-tested calibration performance parameter signal and/or a corresponding performance parameter based on the to-be-tested calibration signal; under the condition that the calibration signal to be tested is calibrated, the control unit is also used for controlling the equipment to be tested to send a target calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch when the equipment to be tested is produced in batches; the signal testing unit is used for determining a target performance parameter based on the target calibration performance parameter signal to be tested and the corresponding relation; the calibration performance parameters to be measured and the target calibration performance parameters to be measured both include: a power calibration parameter, a frequency offset calibration parameter and a receiving sensitivity calibration parameter; the target performance parameters comprise power parameters, frequency deviation parameters and receiving sensitivity parameters, and the testing system can be calibrated in a self-calibration mode through the equipment to be tested, so that the testing accuracy is improved ingeniously, further, due to the improvement of the accuracy, the equipment to be tested can be calibrated through an accurate result, and the parameters of the equipment to be tested are more accurate.

Fig. 4 shows a schematic flow chart of another wifi production test calibration method provided in this embodiment of the present application, which is applied to the wifi production test calibration system described in any one of fig. 1 to fig. 2, and as shown in fig. 4, the wifi production test calibration method includes:

step 401: under the condition of self-calibrating the power calibration parameters, the control unit controls the power of the equipment to be tested in different modes and different speed states to be sent to the first signal testing subunit through the radio frequency switch.

Step 402: and the first signal testing subunit reads the power signal strength values corresponding to the different modes and the different speed states.

Step 403: and the first signal testing subunit generates a corresponding mapping relation between the power signal strength value and the power based on the plurality of power signal strength values and the power sent by the equipment to be tested.

Step 404: when the device to be tested is produced in batches, the control unit controls the device to be tested to send power in different modes and different speed states to the first signal testing subunit through the radio frequency switch.

Step 405: and the first signal testing subunit reads the current power signal strength values corresponding to the different speed states in the different modes.

Step 406: the first signal testing subunit determines a transmission power calibration value of the device to be tested based on a plurality of current power signal strength values and a corresponding mapping relationship between a power signal strength value and power generated under the condition of self-calibrating the power calibration parameter, so as to complete parameter calibration based on the transmission power calibration value and determine transmission power.

Optionally, under the condition that the frequency offset calibration parameter of the device under test is self-calibrated, the control unit controls the device under test to send the frequency information to the second signal testing subunit through the radio frequency switch. And the second signal testing subunit reads the frequency value corresponding to the device to be tested. When the to-be-tested equipment is subjected to batch production, the control unit controls the to-be-tested equipment to send the current frequency value to the second signal testing subunit through the radio frequency switch. The second signal testing subunit reads the current frequency value. And the second signal testing subunit determines a frequency offset calibration parameter of the device to be tested based on the frequency value and the current frequency value, so as to calibrate the device to be tested based on the frequency offset calibration parameter.

In a possible implementation manner, under the condition that the receiving sensitivity calibration parameter is self-calibrated, the control unit controls the device to be tested and the first signal testing subunit to establish a link, continuously reduces the power of the first signal testing subunit according to a preset value until the link is disconnected, and determines the first power sent by the first signal testing subunit when the link is disconnected;

For example, fig. 5 shows a flowchart of another wifi production test calibration method provided in this embodiment of the present application, and as shown in fig. 5, first, self-calibration of a debugging gold plate is performed, power calibration, frequency offset calibration, and reception sensitivity calibration are performed on the gold plate, the calibration is exited when the power calibration, the frequency offset calibration, and/or the reception sensitivity calibration fail, the calibration is completed when all three calibrations pass, batch measurement is performed, the power test, the frequency offset test, and the reception sensitivity test are performed, the test is exited when the power test, the frequency offset test, and/or the reception sensitivity test fail, and the test is completed when all three tests pass.

In summary, in the wifi production test calibration method provided in the embodiment of the present application, under the self-calibration condition, the control unit is configured to control the device under test to send a calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch; the signal testing unit is used for determining the corresponding relation of a to-be-tested calibration performance parameter signal and/or a corresponding performance parameter based on the to-be-tested calibration signal; under the condition that the calibration signal to be tested is calibrated, the control unit is further used for controlling the equipment to be tested to send a target calibration performance parameter signal to be tested to the signal testing unit through the radio frequency switch when the equipment to be tested is produced in batches; the signal testing unit is used for determining a target performance parameter based on the target calibration performance parameter signal to be tested and the corresponding relation; the calibration performance parameters to be measured and the target calibration performance parameters to be measured both include: a power calibration parameter, a frequency offset calibration parameter and a receiving sensitivity calibration parameter; the target performance parameters comprise power parameters, frequency deviation parameters and receiving sensitivity parameters, and a self-calibration mode can be performed on the test system through the device to be tested, so that the test accuracy is improved ingeniously, further, due to the improvement of the accuracy, the device to be tested can be calibrated through an accurate result, and the parameters of the device to be tested are more accurate.

The wifi production test calibration method provided by the invention can realize the wifi production test calibration system shown in any one of fig. 1 to fig. 2, and is not repeated here to avoid repetition.

The electronic device in the embodiment of the present invention may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiment of the present invention is not particularly limited.

The electronic device in the embodiment of the present invention may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present invention are not limited in particular.

Fig. 6 is a schematic diagram illustrating a hardware structure of an electronic device according to an embodiment of the present invention. As shown in fig. 6, the electronic device 500 includes a processor 510.

As shown in fig. 6, the processor 510 may be a general processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs according to the present invention.

As shown in fig. 6, the electronic device 500 may further include a communication line 540. Communication link 540 may include a path to communicate information between the aforementioned components.

Optionally, as shown in fig. 6, the electronic device may further include a communication interface 520. The communication interface 520 may be one or more. The communication interface 520 may use any transceiver or the like for communicating with other devices or communication networks.

Optionally, as shown in fig. 6, the electronic device may further include a memory 530. The memory 530 is used to store computer-executable instructions for performing aspects of the present invention and is controlled for execution by the processor. The processor is used for executing computer execution instructions stored in the memory, thereby realizing the method provided by the embodiment of the invention.

As shown in fig. 6, the memory 530 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a Random Access Memory (RAM) or other types of dynamic storage devices that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. Memory 530, which may be separate, is coupled to processor 510 via communication line 540. Memory 530 may also be integrated with processor 510.

Optionally, the computer-executable instructions in the embodiment of the present invention may also be referred to as application program codes, which is not specifically limited in this embodiment of the present invention.

In particular implementations, as one embodiment, processor 510 may include one or more CPUs, such as CPU0 and CPU1 in fig. 6, as shown in fig. 6.

In one implementation, as shown in fig. 6, a terminal device may include multiple processors, such as the processor in fig. 6, for example. Each of these processors may be a single-core processor or a multi-core processor.

Fig. 7 is a schematic structural diagram of a chip according to an embodiment of the present invention. As shown in fig. 7, the chip 600 includes one or more than two (including two) processors 510.

Optionally, as shown in fig. 7, the chip further includes a communication interface 520 and a memory 530, and the memory 530 may include a read-only memory and a random access memory and provide operating instructions and data to the processor. The portion of memory may also include non-volatile random access memory (NVRAM).

In some embodiments, as shown in FIG. 7, memory 530 stores elements, execution modules or data structures, or a subset thereof, or an expanded set thereof.

In the embodiment of the present invention, as shown in fig. 7, by calling an operation instruction stored in the memory (the operation instruction may be stored in the operating system), a corresponding operation is performed.

As shown in fig. 7, the processor 510 controls the processing operation of any one of the terminal devices, and the processor 510 may also be referred to as a Central Processing Unit (CPU).

As shown in fig. 7, memory 530 may include both read-only memory and random access memory, and provides instructions and data to the processor. A portion of the memory 530 may also include NVRAM. For example, in applications where the memory, communication interface, and memory are coupled together by a bus system that may include a power bus, a control bus, a status signal bus, etc., in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 640 in fig. 7.

As shown in fig. 7, the method disclosed in the above embodiments of the present invention may be applied to a processor, or may be implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an ASIC, an FPGA (field-programmable gate array) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

In one aspect, a computer-readable storage medium is provided, in which instructions are stored, and when the instructions are executed, the functions performed by the terminal device in the foregoing embodiments are implemented.

In one aspect, a chip is provided, where the chip is applied to a terminal device, and the chip includes at least one processor and a communication interface, where the communication interface is coupled to the at least one processor, and the processor is configured to execute instructions to implement the functions performed by the wifi production test calibration method in the above embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the procedures or functions described in the embodiments of the present invention are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a terminal, a user device, or other programmable apparatus. The computer program or instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program or instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; or optical media such as Digital Video Disks (DVDs); it may also be a semiconductor medium, such as a Solid State Drive (SSD).

While the invention has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

While the invention has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the invention. Accordingly, the specification and figures are merely exemplary of the invention as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A wifi production test calibration system, characterized in that, the system includes:

under the self-calibration condition, the control unit is used for controlling the equipment to be tested to send a calibration signal to be tested to the signal test unit through the radio frequency switch;

the signal testing unit is used for determining a calibration performance parameter signal to be tested or the corresponding relation of the corresponding performance parameters based on the calibration signal to be tested;

the signal testing unit is used for determining a target performance parameter based on the target calibration performance parameter to be tested by combining the corresponding relation of the performance parameters or combining the calibration performance parameter signal to be tested;

the calibration performance parameters to be measured and the target calibration performance parameters to be measured both include: a power calibration parameter, a frequency offset calibration parameter and a receiving sensitivity calibration parameter; the target performance parameters comprise a power parameter, a frequency offset parameter and a receiving sensitivity parameter;

the signal testing unit comprises a first signal testing subunit, one end of the first signal testing subunit is connected with the control unit, and the other end of the first signal testing subunit is connected with the radio frequency switch;

the signal testing unit is used for determining a calibration performance parameter signal to be tested or a corresponding relation of corresponding performance parameters based on the calibration signal to be tested, and comprises the following steps:

when the to-be-tested equipment is produced in batches, the control unit is further used for controlling the to-be-tested equipment to send power in different modes and different speed states to the first signal testing subunit through the radio frequency switch;

the signal testing unit is used for determining a target performance parameter based on the target calibration performance parameter to be tested by combining the corresponding relation of the performance parameter or combining the calibration performance parameter signal to be tested, and comprises the following steps:

the first signal testing subunit is further configured to determine a transmit power calibration value of the device to be tested based on a plurality of current power signal strength values and a corresponding mapping relationship between power and power generated when the power calibration parameter is subjected to self calibration, so as to complete parameter calibration based on the transmit power calibration value and determine transmit power;

the signal testing unit also comprises a second signal testing subunit, one end of the second signal testing subunit is connected with the first signal testing subunit, and the other end of the second signal testing subunit is connected with the equipment to be tested through the radio frequency switch;

when the equipment to be tested is produced in batches, the control unit is used for controlling the equipment to be tested to send the current frequency value to the second signal testing subunit through the radio frequency switch;

the second signal testing subunit is used for reading the current frequency value;

the second signal testing subunit is further configured to determine, based on the frequency value and the current frequency value, a frequency offset calibration parameter of the device to be tested, so as to calibrate the device to be tested based on the frequency offset calibration parameter.

2. The wifi production test calibration system of claim 1, wherein under the condition of self calibration, the control unit is used to control the device under test to send the calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch, including:

3. The wifi production test calibration system of claim 1, wherein the control board further comprises a first communication interface connected with the control unit, the device under test comprises a main control unit, and a second communication interface and a wifi unit under test respectively connected with the main control unit; the first communication interface is connected with the second communication interface; the signal testing unit is connected with the wifi unit to be tested.

4. The wifi production test calibration system of claim 3, wherein the control board further includes a debugging serial port unit connected with the control unit, the debugging serial port unit is used to debug the control board.

5. The wifi production test calibration system of claim 4 further comprises an attenuator, one end of the attenuator is connected with the radio frequency switch, and the other end of the attenuator is connected with the wifi unit to be tested.

6. A wifi production test calibration method, characterized in that, applied to the wifi production test calibration system of any claim 1 to 5, the method includes:

under the self-calibration condition, the control unit controls the equipment to be tested to send a calibration signal to be tested to the signal test unit through the radio frequency switch;

the signal testing unit determines a calibration performance parameter signal to be tested or the corresponding relation of the corresponding performance parameters based on the calibration signal to be tested;

the signal testing unit determines a target performance parameter based on the target calibration performance parameter to be tested by combining the corresponding relation of the performance parameters or combining the calibration performance parameter signal to be tested;

the calibration performance parameters to be measured and the target calibration performance parameters to be measured both include: power calibration parameters, frequency offset calibration parameters and receiving sensitivity calibration parameters; the target performance parameters comprise a power parameter, a frequency offset parameter and a receiving sensitivity parameter;

under the self-calibration condition, the control unit controls the device to be tested to send the calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch, and the method comprises the following steps:

the signal testing unit determines a calibration performance parameter signal to be tested or a corresponding relation of corresponding performance parameters based on the calibration signal to be tested, and the method comprises the following steps:

the signal testing unit determines a target performance parameter based on the target calibration performance parameter to be tested by combining the corresponding relation of the performance parameters or combining the calibration performance parameter signal to be tested, and the method comprises the following steps:

the first signal testing subunit determines a transmission power calibration value of the device to be tested based on a plurality of current power signal strength values and a corresponding mapping relationship between a power signal strength value and power generated under the condition of self-calibrating the power calibration parameter, so as to complete parameter calibration based on the transmission power calibration value and determine transmission power;

under the condition of self calibration, the control unit controls the device to be tested to send the calibration performance parameter signal to be tested to the signal test unit through the radio frequency switch, and the method comprises the following steps:

the second signal testing subunit reads the current frequency value;

7. An electronic device, comprising: one or more processors; and one or more machine readable media having instructions stored thereon that when executed by the one or more processors cause the wifi production test calibration method of claim 6 to be performed.