Antenna near-field calibration method and system, electronic equipment and storage medium

Abstract

The invention discloses an antenna near-field calibration method and system, electronic equipment and a storage medium, and the method comprises the steps: obtaining the contour data of a to-be-calibrated antenna, and building an antenna coordinate system of the to-be-calibrated antenna according to the contour data of the antenna; according to the established antenna coordinate system and the contour data of the to-be-calibrated antenna, measuring the near field intensity of the to-be-calibrated antenna to obtain a measurement data set including the field intensity of different points of the near field of the antenna; drawing an antenna three-dimensional field intensity distribution diagram according to the measured data set, and calibrating the antenna to be calibrated according to the drawn antenna three-dimensional field intensity distribution diagram; a coordinate system is established according to the contour of the to-be-calibrated antenna, and the to-be-calibrated antenna is calibrated by taking the antenna contour as a constraint based on the established coordinate system, so that errors are reduced, and the measurement accuracy is improved; a three-dimensional distribution diagram of the antenna field intensity is drawn based on the measured data set, and the antenna is calibrated visually according to the three-dimensional distribution diagram, so that the calibration efficiency is improved; the embodiment of the invention can be widely applied to the technical field of antenna testing.

Description

Technical Field

[0001] The present invention relates to the field of antenna testing technology, and in particular to an antenna near-field calibration method, system, electronic equipment and storage medium. Background Art

[0002] Electrical and electronic equipment or systems are susceptible to external electromagnetic interference in the working environment, so they need to have the ability to work normally in the electromagnetic environment without being disturbed by electromagnetic interference; antennas emit transverse electromagnetic waves (TEM) to simulate near-field electromagnetic interference signals to perform close-range radiation field immunity tests on electrical and electronic equipment or systems, so the technical characteristics of the electromagnetic field size, uniformity and distance relationship emitted by the antenna need to be verified through calibration; existing antenna calibration usually uses manual measurement of the near-field strength of the antenna when it is working for calibration, which has large manual errors, low calibration efficiency and low measurement accuracy. Summary of the invention

[0003] The main purpose of the embodiments of the present invention is to provide an antenna near-field calibration method, system, electronic device and storage medium, which can improve calibration efficiency and measurement accuracy.

[0004] To achieve the above object, an embodiment of the present invention provides an antenna near-field calibration method, the method comprising:

[0005] Acquire contour data of the antenna to be calibrated, and determine the antenna coordinate system of the antenna to be calibrated according to the contour data;

[0006] Performing field strength measurement on the antenna to be calibrated according to the antenna coordinate system and the profile data to obtain a measurement data set; wherein the measurement data set includes a plurality of field strength data and corresponding position data;

[0007] The measurement data set is plotted to obtain a three-dimensional field strength distribution map of the antenna; and the antenna to be calibrated is calibrated according to the three-dimensional field strength distribution map of the antenna.

[0008] In some embodiments, determining the antenna coordinate system of the antenna to be calibrated according to the profile data specifically includes:

[0009] Determine a number of measurement points according to the contour data and a preset number, perform position measurement on the number of measurement points, and obtain coordinates of the number of measurement points;

[0010] A fitting calculation is performed based on the coordinates of the plurality of measurement points and a preset formula to determine the geometric center coordinates; a three-dimensional coordinate system is established with the geometric center coordinates as the coordinate origin, and the three-dimensional coordinate system is used as the antenna coordinate system.

[0011] In some embodiments, the performing field strength measurement on the antenna to be calibrated according to the antenna coordinate system and the profile data to obtain a measurement data set specifically includes:

[0012] Generate a measurement instruction according to the antenna coordinate system and the profile data, determine a target parameter, and send the measurement instruction to a measurement manipulator, so that the measurement manipulator measures the field strength of the antenna to be calibrated according to the measurement instruction and feeds back the measurement result;

[0013] A measurement result is received, the measurement result is saved in an intermediate data set, the measurement result is compared with the target parameter, and the measurement data set is determined.

[0014] In some embodiments, comparing the measurement result with the target parameter to determine the measurement data set specifically includes:

[0015] If the measurement result is successfully compared with the target parameter, the intermediate data set is used as the measurement data set;

[0016] If the measurement result fails to be compared with the target parameter, the measurement instruction is updated according to the antenna coordinate system and the profile data, and the updated measurement instruction is sent to the measurement robot arm until the measurement result is successfully compared with the target parameter.

[0017] In some embodiments, the drawing according to the measurement data set to obtain the antenna three-dimensional field strength distribution map specifically includes:

[0018] Integrating the measurement data set to determine a plurality of field strength-coordinate data pairs;

[0019] A three-dimensional map is drawn according to the preset corresponding relationship and a plurality of the field strength-coordinate data pairs to obtain a three-dimensional field strength distribution map of the antenna.

[0020] To achieve the above object, another aspect of an embodiment of the present invention provides an antenna near-field calibration system, including a measurement mechanical arm and a computer device connected to the measurement mechanical arm, wherein:

[0021] The measuring mechanical arm is used to measure the field strength of the antenna to be calibrated according to the measurement instruction and to feed back the measurement result;

[0022] The computer device comprises:

[0023] at least one processor;

[0024] at least one memory for storing at least one program;

[0025] When the at least one program is executed by the at least one processor, the at least one processor implements the above-mentioned method.

[0026] In some embodiments, the measuring robot arm includes a field strength probe, a robot arm and a controller; wherein,

[0027] The field strength probe is arranged at the end of the mechanical arm, and is used to measure the field strength of the antenna to be calibrated, determine the measurement result, and feed back the measurement result to the computer device;

[0028] The mechanical arm is covered with wave absorbing material, and is used to clamp and move the field intensity probe, record the coordinate data of the field intensity probe, and feed the coordinate data back to the computer device;

[0029] The controller is electrically connected to the mechanical arm, the field strength probe and the computer device respectively, and the controller controls the mechanical arm and the field strength probe respectively.

[0030] In some embodiments, the controller is further used to determine the detection instruction and the movement instruction respectively according to the received measurement instruction, control the movement of the robotic arm according to the movement instruction, and control the field strength probe to perform field strength detection according to the detection instruction.

[0031] To achieve the above-mentioned purpose, another aspect of an embodiment of the present application provides an electronic device, the electronic device comprising a memory and a processor, the memory storing a computer program, and the processor implementing the above-mentioned method when executing the computer program.

[0032] To achieve the above objective, another aspect of an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described above is implemented.

[0033] Implementation of the embodiments of the present invention includes the following beneficial effects: the embodiments provide a method, system, electronic device and storage medium for calibrating an antenna near-field. The scheme acquires contour data of the antenna to be calibrated, establishes an antenna coordinate system of the antenna to be calibrated according to the contour data of the antenna to be calibrated, measures the near-field field strength of the antenna to be calibrated according to the established antenna coordinate system and the contour data of the antenna to be calibrated, and obtains a measurement data set including the field strength at different points in the near field of the antenna; draws a three-dimensional field strength distribution map of the antenna according to the measured data set, and calibrates the antenna to be calibrated according to the drawn three-dimensional field strength distribution map of the antenna; establishes a coordinate system according to the contour of the antenna to be calibrated, and based on the established coordinate system, calibrates the antenna to be calibrated with the antenna contour as a constraint, thereby reducing errors and improving measurement accuracy; based on the three-dimensional distribution map of the antenna field strength drawn based on the measured data set, intuitively calibrates the antenna according to the three-dimensional distribution map, and improves calibration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the steps of a near-field antenna calibration method provided by an embodiment of the present invention;

[0035] Figure 2 It is a schematic flow chart of the steps of determining an antenna coordinate system in a method for antenna near-field calibration provided by an embodiment of the present invention;

[0036] Figure 3 It is a schematic flow chart of the steps of determining a measurement data set in a method for antenna near-field calibration provided by an embodiment of the present invention;

[0037] Figure 4 It is a schematic flow chart of the steps of determining a measurement data set according to a comparison result in a method for antenna near-field calibration provided by an embodiment of the present invention;

[0038] Figure 5 It is a schematic flow chart of the steps of drawing a three-dimensional field strength distribution diagram of an antenna in a near-field calibration method for an antenna provided by an embodiment of the present invention;

[0039] Figure 6 It is a structural block diagram of a device for implementing an antenna near-field calibration method in a specific embodiment provided by an embodiment of the present invention;

[0040] Figure 7 is a schematic diagram of an antenna coordinate system established in a specific embodiment provided by an embodiment of the present invention;

[0041] Figure 8 is a schematic diagram of a field strength measurement path generated by a computer in a specific embodiment provided by an embodiment of the present invention;

[0042] Fig. 9 is a schematic diagram of a three-dimensional distribution diagram of antenna field strength drawn in a specific embodiment provided by an embodiment of the present invention;

[0043] Fig.10 is a schematic diagram of the hardware structure of an electronic device provided by an embodiment of the present invention;

[0044] Fig.11 is a structural block diagram of an antenna near-field calibration system provided by an embodiment of the present invention;

[0045] Fig.12 It is a connection diagram of various modules in an antenna near-field calibration system provided by an embodiment of the present invention;

[0046] Among them, 1 is the measuring probe, 2 is the robotic arm, 3 is the controller, 4 is the computer, 5 is the antenna to be calibrated, O is the coordinate origin, X is the coordinate X-axis, Y is the coordinate Y-axis, Z is the coordinate Z-axis, A, B, C are the vertices of the outer contour of the antenna to be calibrated, a is the measurement program, b is the detection instruction, c is the movement instruction, d is clamping and movement, e is the intensity data, and f is the field strength probe coordinate data. DETAILED DESCRIPTION

[0047] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The step numbers in the following embodiments are only provided for the convenience of explanation and description, and the order between the steps is not limited in any way. The execution order of each step in the embodiment can be adaptively adjusted according to the understanding of those skilled in the art.

[0048] In the following description, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0049] In the following description, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

[0050] Unless otherwise defined, all technical and scientific terms used in the embodiments of the present invention have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the embodiments of the present invention are only for the purpose of describing the embodiments of the present invention and are not intended to limit the present invention.

[0051] Figure 1 is an optional flow chart of an antenna near-field calibration method provided in an embodiment of the present application. Figure 1 The method may include but is not limited to steps S101 to S103.

[0052] Step S101, acquiring contour data of the antenna to be calibrated, and determining the antenna coordinate system of the antenna to be calibrated according to the contour data;

[0053] Step S102, performing field strength measurement on the antenna to be calibrated according to the antenna coordinate system and the profile data to obtain a measurement data set; wherein the measurement data set includes a plurality of field strength data and corresponding position data;

[0054] Step S103, drawing is performed according to the measurement data set to obtain a three-dimensional field strength distribution map of the antenna; and the antenna to be calibrated is calibrated according to the three-dimensional field strength distribution map of the antenna.

[0055] Steps S101 to S103 shown in the embodiment of the present application obtain the outer contour data of the TEM horn antenna to be calibrated, and determine the geometric center of the antenna based on the outer contour data of the TEM horn antenna; establish the antenna coordinate system based on the determined geometric center, use the outer contour data of the TEM horn antenna as a constraint, select a series of measurement points in the established antenna coordinate system, generate a control program for the measurement robot according to the selected measurement points, control the measurement robot to perform field strength measurement on the TEM horn antenna to be calibrated at the selected measurement points, and obtain a measurement data set; the system draws a current three-dimensional field strength distribution map of the TEM horn antenna based on the measurement data set fed back by the measurement robot, and calibrates the TEM horn antenna according to the drawn three-dimensional field strength distribution map to confirm the technical characteristics of the TEM horn antenna and ensure the uniformity of the field intensity illumination of the TEM horn antenna.

[0056] In step S101 of some embodiments, a sensor, such as a visual sensor or a tactile sensor, may be provided on the measuring manipulator, and the measuring manipulator may be controlled by sensor feedback to detect the outer contour of the antenna to be calibrated to obtain the outer contour data of the antenna to be calibrated. The measuring manipulator may also be manually controlled to detect the outer contour of the antenna to be calibrated to obtain the outer contour data of the antenna to be calibrated, but is not limited thereto.

[0057] See also Figure 2 In some embodiments, step S101 may include but is not limited to steps S201 to S202:

[0058] Step S201, determining a number of measurement points according to the contour data and a preset number, performing position measurement on the number of measurement points, and obtaining coordinates of the number of measurement points;

[0059] Step S202, performing fitting calculation according to the coordinates of several measurement points and a preset formula to determine the geometric center coordinates; establishing a three-dimensional coordinate system with the geometric center coordinates as the coordinate origin, and using the three-dimensional coordinate system as the antenna coordinate system.

[0060] In step S201 of some embodiments, several measurement points are selected on the outer contour of the antenna to be calibrated according to the outer contour data of the antenna to be calibrated, for example, each vertex of the antenna is selected; the measuring robot performs detection at the selected measurement points, and the coordinate position of the measurement point is recorded to establish the coordinate system of the antenna.

[0061] In step S202 of some embodiments, the coordinate position of the geometric center point of the antenna is calculated by mathematical fitting or drawing a graph for fitting according to the coordinate position of the recorded measurement point; illustratively, the outer contour of the antenna to be calibrated is a polygon, and the coordinates of the geometric center point are (X o ,Y o ,Z o ), where the geometric center X1,X2,…X n ,Y1,Y2,…Y n ,Z1,Z2,…Z n They are the three-dimensional coordinates of each vertex of the polygonal outer contour of the antenna to be calibrated; after determining the coordinates of the geometric center of the antenna to be calibrated, a Cartesian coordinate system is established with the coordinates of the geometric center as the origin, the discovery direction of the contour surface passing through the origin as the X-axis of the coordinate system, and the vertical upward direction as the Z-axis, as the coordinate system of the current antenna to be calibrated.

[0062] See also Figure 3 In some embodiments, step S102 may include but is not limited to steps S301 to S302:

[0063] Step S301, generating a measurement instruction according to the antenna coordinate system and profile data, determining target parameters, and sending the measurement instruction to a measurement manipulator, so that the measurement manipulator measures the field strength of the antenna to be calibrated according to the measurement instruction, and feeds back the measurement result;

[0064] Step S302, receiving the measurement result, saving the measurement result to an intermediate data set, comparing the measurement result with the target parameter, and determining the measurement data set.

[0065] In step S301 of some embodiments, after the coordinate system of the antenna to be calibrated is established, the forward power and field strength values ​​within the frequency range of the antenna specifications are set, such as setting the frequency of the antenna to 380 MHz and the power to 180 W; the system generates a measurement program based on the established coordinate system and the acquired outer contour data of the antenna to be calibrated, including a measurement path for the antenna to be calibrated and a number of measurement points set along the measurement path; the system generates a measurement instruction based on the generated measurement program, and sends it to a measuring robotic arm to drive the robotic arm to clamp the measuring probe and move it to a distance in front of the antenna to be calibrated to perform field strength measurement according to the measurement instruction, and feeds back the measurement result to the system.

[0066] In step S302 of some embodiments, the system receives the measurement results fed back by the measuring robotic arm, saves the measurement results in an intermediate data set, and compares the current measurement results with the last measurement point of the measurement path in the generated measurement program to determine whether the measurement operation is completed, thereby obtaining a field strength measurement data set of the antenna to be calibrated.

[0067] See also Figure 4 In some embodiments, step S302 may include but is not limited to steps S401 to S402:

[0068] Step S401, if the measurement result is successfully compared with the target parameter, the intermediate data set is used as the measurement data set;

[0069] Step S402: If the comparison between the measurement result and the target parameter fails, the measurement instruction is updated according to the antenna coordinate system and the profile data, and the updated measurement instruction is sent to the measurement robot arm until the comparison between the measurement result and the target parameter succeeds.

[0070] In step S401 of some embodiments, after the system receives the measurement result fed back by the measuring robot arm, it compares the coordinate position in the measurement result with the last measurement point in the measurement program generated by the system to determine whether the measuring robot arm has completed the field strength measurement of the antenna to be calibrated; if the measurement result fed back by the measuring robot arm is successfully compared with the last measurement point in the system measurement program, it means that the measuring robot arm has completed the field strength measurement operation, and the intermediate data set containing the measurement result fed back by the measuring robot arm is used as the measurement data set for subsequent antenna calibration.

[0071] In step S402 of some embodiments, if the measurement result fed back by the measuring robot fails to match the last measurement point in the system measurement program, the system updates the measurement instruction based on the currently fed back measurement result, the established antenna coordinate system and the outer contour data of the antenna to be calibrated, and sends the new measurement instruction to the measuring robot to drive the measuring robot to move to the next measurement point for field strength measurement; until the measuring robot moves to the last measurement point in the measurement program generated by the system, the field strength measurement of the antenna is completed, and the intermediate data set containing the measurement result fed back by the measuring robot is used as the measurement data set for subsequent antenna calibration.

[0072] See also Figure 5 In some embodiments, step S103 may include but is not limited to steps S501 to S502:

[0073] Step S501, integrating the measurement data set to determine a number of field strength-coordinate data pairs;

[0074] Step S502: Perform three-dimensional mapping according to the preset corresponding relationship and a plurality of field strength-coordinate data pairs to obtain a three-dimensional field strength distribution map of the antenna.

[0075] In step S501 of some embodiments, the system completes the field strength measurement of the antenna to be calibrated by the measuring robot arm, and obtains a series of field strength data and position data. The system synchronously integrates the obtained field strength data and position data, and synchronously integrates each position data and the corresponding field strength data into four-dimensional data of the three-dimensional spatial distribution of field strength, such as (X i ,Y i ,Z i ,E i ), where (X i ,Y i ,Z i ) is the position coordinate data, E i It is the field strength data.

[0076] In step S502 of some embodiments, the system draws a distribution map based on the four-dimensional data of the three-dimensional spatial distribution of field strength obtained after integration; in this embodiment, the system draws a distribution map based on the field strength values ​​and the preset corresponding relationship in the four-dimensional data of the three-dimensional spatial distribution of field strength. For example, during the drawing process, the field strength not greater than -12dB is drawn in blue, and the field strength greater than -12dB but less than -4.5dB is drawn in green.

[0077] The following is a detailed description and explanation of the solution of the embodiment of the present invention in conjunction with a specific application example:

[0078] See also Figure 6 , Figure 6 The invention discloses a system for applying the antenna calibration method provided by an embodiment of the present invention, comprising a TEM horn antenna to be calibrated, a computer device, a mechanical arm, a field strength probe and a controller; wherein the controller is respectively connected to the field strength probe, the mechanical arm and the computer device, the field strength probe is clamped by the mechanical arm, and the mechanical arm is covered with an absorbing material; the connected equipment and the antenna to be calibrated are placed in an anechoic chamber, the mechanical arm clamps the field strength probe through a set sensor and moves it to several points of the outer contour of the TEM horn antenna to be calibrated in turn, the mechanical arm records the position coordinates of the field strength probe in turn, and sends them to the computer device; the computer device performs fitting according to the position coordinates sent by the mechanical arm, determines the geometric center of the TEM horn antenna to be calibrated, takes the determined geometric center as the coordinate origin, and establishes the following Figure 7 Before measuring the field strength, the forward frequency of the TEM horn antenna is set to 385 MHz and the power is 180 W. Then, the computer device generates the following according to the established coordinate system and the TEM horn antenna to be calibrated: Figure 8The field strength measurement path shown in the figure is provided with test points; the computer device generates a measurement program according to the generated field strength measurement path and sends it to the controller; the controller generates movement instructions and detection instructions according to the received measurement program, controls the mechanical arm to move along the field strength measurement path through the movement instructions, and feeds back the position information to the controller when it moves to the corresponding test point; the controller controls the field strength probe to measure the field strength according to the detection instruction, and feeds back the instruction to the controller; the controller repeatedly controls the mechanical arm to move along the field strength measurement path according to the test program, and controls the field strength probe to measure the field strength data of the measurement points on the field strength measurement path; the field strength probe and the mechanical arm send the recorded and measured position data and field strength data to the computer device in turn, and the computer device synchronously integrates the received position data and field strength data to obtain the three-dimensional field strength distribution data of the TEM horn antenna to be calibrated, and draws a three-dimensional spatial field strength distribution map of the field strength according to the integrated three-dimensional field strength distribution data; then the mechanical arm and the field strength probe are controlled to move to positions at different distances from the TEM horn antenna to be calibrated, measure the field strength distribution of planes at different distances, and draw the corresponding three-dimensional field strength distribution map, such as Fig. 9 As shown; the TEM horn antenna is calibrated according to the drawn distribution diagram to achieve field uniformity of the TEM horn antenna.

[0079] Implementation of the embodiments of the present invention includes the following beneficial effects: the embodiments provide a method, system, electronic device and storage medium for calibrating an antenna near-field. The scheme acquires contour data of the antenna to be calibrated, establishes an antenna coordinate system of the antenna to be calibrated according to the contour data of the antenna to be calibrated, measures the near-field field strength of the antenna to be calibrated according to the established antenna coordinate system and the contour data of the antenna to be calibrated, and obtains a measurement data set including the field strength at different points in the near field of the antenna; draws a three-dimensional field strength distribution map of the antenna according to the measured data set, and calibrates the antenna to be calibrated according to the drawn three-dimensional field strength distribution map of the antenna; establishes a coordinate system according to the contour of the antenna to be calibrated, and based on the established coordinate system, calibrates the antenna to be calibrated with the antenna contour as a constraint, thereby reducing errors and improving measurement accuracy; based on the three-dimensional distribution map of the antenna field strength drawn based on the measured data set, intuitively calibrates the antenna according to the three-dimensional distribution map, and improves calibration efficiency.

[0080] The embodiment of the present application also provides an electronic device, the electronic device includes a memory and a processor, the memory stores a computer program, and the processor implements the above-mentioned antenna near-field calibration method when executing the computer program. The electronic device can be any smart terminal including a tablet computer, a car computer, etc.

[0081] It can be understood that the contents of the above method embodiments are all applicable to the present device embodiments, the functions specifically implemented by the present device embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0082] See also Fig.10 , Fig.10 The hardware structure of an electronic device of another embodiment is illustrated, and the electronic device includes:

[0083] The processor 1001 may be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of the present application;

[0084] The memory 1002 can be implemented in the form of a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 1002 can store an operating system and other application programs. When the technical solution provided in the embodiment of this specification is implemented by software or firmware, the relevant program code is stored in the memory 1002, and the processor 1001 calls and executes an antenna near-field calibration method in the embodiment of the present application;

[0085] Input / output interface 1003, used to implement information input and output;

[0086] The communication interface 1004 is used to realize the communication interaction between the device and other devices. The communication can be realized through a wired manner (such as USB, network cable, etc.) or a wireless manner (such as mobile network, WIFI, Bluetooth, etc.);

[0087] A bus 1005 , which transmits information between various components of the device (e.g., the processor 1001 , the memory 1002 , the input / output interface 1003 , and the communication interface 1004 );

[0088] The processor 1001 , the memory 1002 , the input / output interface 1003 and the communication interface 1004 are connected to each other in communication within the device via the bus 1005 .

[0089] Among them, the memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. The memory may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a remote memory remotely arranged relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0090] In addition, the embodiment of the present application also discloses a computer program product or a computer program, and the computer program product or the computer program is stored in a computer-readable storage medium. The processor of the computer device can read the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the computer device performs the above method. Similarly, the contents in the above method embodiment are all applicable to the storage medium embodiment, and the functions specifically implemented by the storage medium embodiment are the same as those in the above method embodiment, and the beneficial effects achieved are also the same as those achieved by the above method embodiment.

[0091] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the above-mentioned antenna near-field calibration method is implemented.

[0092] It can be understood that the contents of the above method embodiments are all applicable to the present storage medium embodiments, the functions specifically implemented by the present storage medium embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0093] It is understood that all or some steps and systems in the disclosed method above can be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, and the computer-readable medium can include a computer storage medium (or a non-transitory medium) and a communication medium (or a temporary medium). As known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassette, magnetic tape, disk storage or other magnetic storage device, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0094] like Fig.11 As shown, an embodiment of the present invention further provides an antenna near-field calibration system, including a measurement mechanical arm and a computer device connected to the measurement mechanical arm; wherein,

[0095] The measuring mechanical arm is used to measure the field strength of the antenna to be calibrated according to the test instruction and to feed back the measurement result;

[0096] The computer device comprises:

[0097] at least one processor;

[0098] at least one memory for storing at least one program;

[0099] When the at least one program is executed by the at least one processor, the at least one processor implements the steps of an antenna near-field calibration method described in the above method embodiment.

[0100] Specifically, for the measuring robot arm, it is mainly realized by carrying a measuring probe on the robot arm, and it may specifically include at least one controller to control the robot arm and the measuring probe; and for the computer device, it may be different types of electronic devices, including but not limited to desktop computers, laptops and other terminals.

[0101] In some embodiments, Fig.12 As shown, the measuring probe and the mechanical arm are respectively connected to the controller, and the controller is connected to the computer device. The computer device generates a control instruction according to the generated measurement program and sends it to the controller. The controller controls the mechanical arm to move to the measuring point in the control instruction according to the received control instruction. After the mechanical arm moves into position, the coordinate position of the current measuring point in the established antenna coordinate system is recorded, and the recorded coordinate position is sent to the computer device, and the position information is fed back to the controller; after the controller receives the position information fed back by the mechanical arm, the controller controls the measuring probe to measure the field strength data of the measuring point according to the control instruction, and sends the measured field strength data to the computer device, and feeds back the information to the controller; after the controller receives the feedback information of the measuring probe, the controller controls the mechanical arm to move to the next measuring point according to the control instruction to perform the next field strength measurement.

[0102] It can be seen that the contents of the above method embodiments are all applicable to the present system embodiments, the functions specifically implemented by the present system embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0103] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A method for antenna near-field calibration, characterized in that: The method comprises: Acquire contour data of the antenna to be calibrated, and determine the antenna coordinate system of the antenna to be calibrated according to the contour data; Performing field strength measurement on the antenna to be calibrated according to the antenna coordinate system and the profile data to obtain a measurement data set; wherein the measurement data set includes a plurality of field strength data and corresponding position data; The measurement data set is plotted to obtain a three-dimensional field strength distribution map of the antenna; and the antenna to be calibrated is calibrated according to the three-dimensional field strength distribution map of the antenna.

2. The method according to claim 1, characterized in that Determining the antenna coordinate system of the antenna to be calibrated according to the profile data specifically includes: Determine a number of measurement points according to the contour data and a preset number, perform position measurement on the number of measurement points, and obtain coordinates of the number of measurement points; A fitting calculation is performed based on the coordinates of the plurality of measurement points and a preset formula to determine the geometric center coordinates; a three-dimensional coordinate system is established with the geometric center coordinates as the coordinate origin, and the three-dimensional coordinate system is used as the antenna coordinate system.

3. The method according to claim 1, characterized in that The performing field strength measurement on the antenna to be calibrated according to the antenna coordinate system and the profile data to obtain a measurement data set specifically includes: Generate a measurement instruction according to the antenna coordinate system and the profile data, determine a target parameter, and send the measurement instruction to a measurement manipulator, so that the measurement manipulator measures the field strength of the antenna to be calibrated according to the measurement instruction and feeds back the measurement result; A measurement result is received, the measurement result is saved in an intermediate data set, the measurement result is compared with the target parameter, and the measurement data set is determined.

4. The method according to claim 3, characterized in that The comparing the measurement result with the target parameter to determine the measurement data set specifically includes: If the measurement result is successfully compared with the target parameter, the intermediate data set is used as the measurement data set; If the measurement result fails to be compared with the target parameter, the measurement instruction is updated according to the antenna coordinate system and the profile data, and the updated measurement instruction is sent to the measurement robot arm until the measurement result is successfully compared with the target parameter.

5. The method according to claim 1, characterized in that The drawing according to the measurement data set to obtain the antenna three-dimensional field strength distribution map specifically includes: Integrating the measurement data set to determine a plurality of field strength-coordinate data pairs; A three-dimensional map is drawn according to the preset corresponding relationship and a plurality of the field strength-coordinate data pairs to obtain a three-dimensional field strength distribution map of the antenna.

6. An electronic device, characterized in that: include: at least one processor; at least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor implements the method according to any one of claims 1 to 5.

7. A computer-readable storage medium storing a program executable by a processor, characterized in that: The processor-executable program is used to perform the method according to any one of claims 1 to 5 when executed by the processor.

8. An antenna near-field calibration system, characterized in that: It includes a measuring mechanical arm and a computer device connected to the measuring mechanical arm; wherein, The measuring mechanical arm is used to measure the field strength of the antenna to be calibrated according to the measurement instruction and to feed back the measurement result; The computer device comprises: at least one processor; at least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor implements the method according to any one of claims 1 to 5.

9. The system according to claim 8, characterized in that The measuring mechanical arm comprises a field intensity probe, a mechanical arm and a controller; wherein, The field strength probe is arranged at the end of the mechanical arm, and is used to measure the field strength of the antenna to be calibrated, determine the measurement result, and feed back the measurement result to the computer device; The mechanical arm is covered with wave absorbing material, and is used to clamp and move the field intensity probe, record the coordinate data of the field intensity probe, and feed the coordinate data back to the computer device; The controller is electrically connected to the mechanical arm, the field strength probe and the computer device respectively, and the controller controls the mechanical arm and the field strength probe respectively.

10. The system according to claim 9, characterized in that The controller is also used to determine the detection instruction and the movement instruction respectively according to the received measurement instruction, control the movement of the mechanical arm according to the movement instruction, and control the field strength probe to perform field strength detection according to the detection instruction.

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