CN113259025A - Calibration system and method for broadband radio frequency receiving device - Google Patents
Calibration system and method for broadband radio frequency receiving device Download PDFInfo
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- CN113259025A CN113259025A CN202110375616.7A CN202110375616A CN113259025A CN 113259025 A CN113259025 A CN 113259025A CN 202110375616 A CN202110375616 A CN 202110375616A CN 113259025 A CN113259025 A CN 113259025A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a calibration system of a broadband radio frequency receiving device, which comprises a computer, and a testing device and a tested device which are electrically connected with the computer respectively, wherein the testing device comprises a testing body, a signal sending module, a position sensing module and a moving module, the signal sending module, the position sensing module and the moving module are provided with power supplies and are arranged on the testing body, the signal sending module, the position sensing module and the moving module are electrically connected with the computer respectively, the tested device comprises a tested body and a signal receiving module arranged on the tested body, and the signal receiving module is electrically connected with the computer. The invention solves the problems of long time of manual operation steps, low efficiency, low automation degree, influence on the body health of testers and the like in the prior art.
Description
Technical Field
The invention relates to the technical field of signal testing, in particular to a calibration system and a calibration method for a broadband radio frequency receiving device.
Background
Under the general condition, it is very difficult to carry out the azimuth channel calibration to the broadband radio frequency receiving device outdoors, the calibration and the test carried out outdoors at present are all realized manually, various test instruments are carried by multiple persons at different angles, the interphone communicates with the tester carrying out the monitoring of the broadband radio frequency receiving device, the tester of the broadband radio frequency receiving device carries out information recording manually according to the test information received by the receiving device, the statistics and the calculation of the information are carried out manually after all tests are finished, the tester is exposed outdoors in the open space for a long time or in the low-temperature cold state, the body health of the tester is damaged, meanwhile, the statistics and the calculation of the manual information need to be carried out afterwards, the working efficiency is low, and a large amount of manpower and material resources are consumed.
Typical calibration systems have the following characteristics: the tested broadband radio frequency receiving device is powered on, various testing instruments are powered on independently, a control computer is not provided, and only a monitoring computer of the broadband radio frequency receiving device is provided; measuring a test point of the horizontal linear distance R from the central point O of the measured object through the measuring tape, and then respectively marking other angle points needing to be calibrated on the ground; a five-wire laser level meter is placed under a receiving antenna of a tested broadband radio frequency receiving device, and two vertically crossed laser lines can be shot to the right upper side by the laser level meter. The position and direction of the laser level meter are manually adjusted to enable one laser line to be parallel to the side line of the object AB to be measured and the other laser line to pass through the middle point of the object AB to be measured, so that the laser line perpendicular to the AB is the normal line of the object to be measured, the height H, the rotating shaft angle psi and the angle a are manually adjusted, and the position relation is also shown in figure 3. The signal source of the signal generating device is operated manually, and the signal generating device is communicated with a tester by voice to complete work in a matching way; manually recording frequency point frequency information and frequency point angle information received by a device to be tested, then calculating the difference between the angle information and the actual direction, and calculating all the difference values one by one in a frequency point and direction one by one; when the next angle test is carried out, personnel are required to manually move the required equipment, devices, transmitting antennas and the like.
The manual operation steps that above prior art exists are many times long, and is inefficient, and degree of automation is low, influences the healthy scheduling problem of tester.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a calibration system and a calibration method of a broadband radio frequency receiving device, and solves the problems that manual operation steps are long, the efficiency is low, the automation degree is low, the physical health of testers is influenced and the like in the prior art.
The technical scheme adopted by the invention for solving the problems is as follows:
the utility model provides a broadband radio frequency receiving arrangement's calibration system, including the computer, respectively with testing arrangement and the device under test that the computer electricity links to each other, testing arrangement is including testing body, signalling module, position sensing module, mobile module all have the power and all locate on the testing body, signalling module, position sensing module, mobile module link to each other with the computer electricity respectively, the device under test is including the body under test, locate the signal reception module on the body under test, signal reception module links to each other with the computer electricity.
The computer is used for transmitting signals with the testing device and the tested device, the testing body is used as a bearing device of the testing device, the tested body is used as a bearing device of the tested device, the position sensing module is used for sensing the position of the testing device, and the moving module can drive the testing device loaded on the testing body to move.
Because the testing device and the tested device are electrically connected with the computer, the efficiency of signal transmission and command issuing execution is greatly improved, and the automation degree is improved; the position sensing module and the moving module are respectively and electrically connected with the computer, so that the computer can sense and control the position of the testing device in real time conveniently; in addition, in the operation process, the computer can automatically record and the like, so that the time and energy of manual operation are greatly reduced, the efficiency is greatly improved, the condition that testers are exposed to the sun for a long time or are cold at low temperature outdoors is avoided, and the influence on the health of the testers is reduced.
The invention has the advantages that the automatic test system is used for calibrating the azimuth channel, the test related work is completed by replacing the test personnel, the personnel are prevented from being exposed to the open environment of signal radiation, high-temperature insolation or low-temperature cold for a long time, the working efficiency is improved, the working time is saved, the large-scale production debugging is facilitated, and the labor and material cost is reduced.
As a preferred technical solution, the signal sending module includes a signal generator and a power amplifier electrically connected to each other.
The signal generator sends signals, and the power amplifier amplifies the signal generator, so that the testing device can better receive information, the reliability of the system is improved, and the implementation by utilizing small signals is facilitated.
As a preferred solution, the power amplifier is electrically connected to a transmission antenna.
As a preferred technical solution, the height of the transmitting antenna can be adjusted.
As a preferred technical solution, the angle of the rotation axis of the transmitting antenna can be adjusted.
The transmitting antenna is widely used in signal transmission, simple in structure, good in transmission effect, flexible and efficient, and effective transmission of signals can be achieved conveniently through adjustment of the height and the angle of the rotating shaft.
As a preferred technical solution, the computer and the testing device transmit signals in a wireless communication manner.
This facilitates reduced disruption of electrical signal connections and also facilitates long distance signal transmission.
As a preferred technical solution, the computer and the device under test transmit signals in a wireless communication or wired communication manner.
This is convenient for optimize signal transmission's electric connection structure according to operating condition, and the optional face is wide.
A method for using a calibration system of a broadband radio frequency receiving device comprises the following steps:
s1, placing the position sensing module of the testing device at the central point of the tested device, and receiving the position information and transmitting the position information to the computer by the signal receiving module;
s2, the testing device is far away from the central point of the tested device and is fixed;
s3, the signal sending module sends signals to the signal receiving module and the computer, and the signal receiving module receives the signals and feeds the signals back to the computer;
and S4, comparing the signal sent by the signal sending module with the signal fed back by the signal receiving module by the computer, recording the frequency difference between the signal sent by the signal sending module and the signal fed back by the signal receiving module, generating a compensation table, and storing the compensation table in the tested device.
The computer is used for transmitting signals with the testing device and the tested device, the testing body is used as a bearing device of the testing device, the tested body is used as a bearing device of the tested device, the position sensing module is used for sensing the position of the testing device, and the moving module can drive the testing device loaded on the testing body to move.
Because the testing device and the tested device are electrically connected with the computer, the efficiency of signal transmission and command issuing execution is greatly improved, and the automation degree is improved; the position sensing module and the moving module are respectively and electrically connected with the computer, so that the computer can sense and control the position of the testing device in real time conveniently; in addition, in the operation process, the computer can automatically record and the like, so that the time and energy of manual operation are greatly reduced, the efficiency is greatly improved, the condition that testers are exposed to the sun for a long time or are cold at low temperature outdoors is avoided, and the influence on the health of the testers is reduced.
The invention has the advantages that the automatic test system is used for calibrating the azimuth channel, the test related work is completed by replacing the test personnel, the personnel are prevented from being exposed to the open environment of signal radiation, high-temperature insolation or low-temperature cold for a long time, the working efficiency is improved, the working time is saved, the large-scale production debugging is facilitated, and the labor and material cost is reduced.
As a preferable technical solution, the step S3 further includes the steps of: the height of the transmitting antenna is set.
As a preferable technical solution, the step S3 further includes the steps of: and setting the rotating shaft angle of the transmitting antenna.
The transmitting antenna is widely used in signal transmission, simple in structure, good in transmission effect, flexible and efficient, and effective transmission of signals can be achieved conveniently through adjustment of the height and the angle of the rotating shaft.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the testing device and the tested device are electrically connected with the computer, so that the efficiency of signal transmission and command issuing execution is greatly improved, and the automation degree is improved; the position sensing module and the moving module are respectively and electrically connected with the computer, so that the computer can sense and control the position of the testing device in real time conveniently; in addition, in the operation process, the computer can automatically record and the like, so that the time and energy of manual operation are greatly reduced, the efficiency is greatly improved, the tester is prevented from being exposed to the sun for a long time or being in a vacant outdoor environment due to low temperature and cold, and the influence on the health of the tester is reduced;
(2) the automatic testing system is used for calibrating the azimuth channel, and testing related work is completed by replacing testing personnel, so that the personnel are prevented from being exposed to signal radiation, high-temperature insolation or low-temperature cold open-air environment for a long time, the working efficiency is improved, the working time is saved, large-scale production debugging is facilitated, and the labor and material cost is reduced;
(3) the signal generator sends a signal, and the power amplifier amplifies the signal generator, so that the testing device can better receive information, the reliability of the system is improved, and the implementation by utilizing small signals is facilitated;
(4) the transmitting antenna is widely used in signal transmission, has a simple structure and a good transmission effect, is convenient for realizing effective transmission of signals through adjustment of the height and the angle of the rotating shaft, and is flexible and efficient;
(5) the computer and the testing device transmit signals in a wireless communication mode, so that the disturbance of an electric signal connecting line is reduced, and long-distance signal transmission is facilitated; the computer and the tested device transmit signals in a wireless communication or wired communication mode, so that the electric connection structure for signal transmission is optimized according to actual working conditions, and the selection range is wide.
Drawings
FIG. 1 is a schematic diagram of a system according to the present invention;
FIG. 2 is a second schematic diagram of the system of the present invention;
FIG. 3 is a schematic representation of the use of the system of the present invention in example 3;
fig. 4 is a schematic structural diagram of a transmitting antenna according to the present invention in embodiment 3.
Reference numbers and corresponding part names in the drawings: 1. the device comprises a computer, 2, a testing device, 3, a tested device, 21, a signal sending module, 22, a position sensing module, 23, a moving module, 24, a testing body, 25, a sending antenna, 31, a signal receiving module, 32, a tested body, 211, a signal generator, 212 and a power amplifier.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
Example 1
As shown in fig. 1 to 4, a calibration system for a broadband radio frequency receiving device includes a computer 1, and a testing device 2 and a tested device 3 electrically connected to the computer 1, where the testing device 2 includes a testing body 24, a signal sending module 21, a position sensing module 22, and a moving module 23, the signal sending module 21, the position sensing module 22, and the moving module 23 all have a power supply and are all disposed on the testing body 24, the signal sending module 21, the position sensing module 22, and the moving module 23 are electrically connected to the computer 1, the tested device 3 includes a tested body 32 and a signal receiving module 31 disposed on the tested body 32, and the signal receiving module 31 is electrically connected to the computer 1.
The computer 1 is used for signal transmission with the testing device 2 and the device under test 3, the testing body 24 is used as a carrying device of the testing device 2, the body under test 32 is used as a carrying device of the device under test 3, the position sensing module 22 is used for sensing the position of the testing device 2, and the moving module 23 can drive the testing device 2 carried on the testing body 24 to move.
When in use, the method can be executed according to the following steps:
s1, the position sensing module 22 of the testing device 2 is placed at the central point of the tested device 3, and the signal receiving module 31 receives the position information and transmits the position information to the computer 1; checking as an initial point;
s2, the testing device 2 is far away from the central point of the tested device 3 and is fixed; the step is to prepare for the next detection;
s3, the signal sending module 21 sends signals to the signal receiving module 31 and the computer 1, and the signal receiving module 31 receives the signals and feeds the signals back to the computer 1;
s4, the computer 1 compares the signal sent by the signal sending module 21 with the signal fed back by the signal receiving module 31, records the frequency difference between the two signals, generates a compensation table, and stores the compensation table in the device 3.
Because the testing device 2 and the tested device 3 are electrically connected with the computer 1, the efficiency of signal transmission and command issuing execution is greatly improved, and the automation degree is improved; the position sensing module 22 and the moving module 23 are respectively electrically connected with the computer 1, so that the computer 1 can sense and control the position of the testing device 2 in real time; in addition, in the operation process, the computer 1 can automatically record and the like, so that the time and energy of manual operation are greatly reduced, the efficiency is greatly improved, the condition that testers are exposed to the sun for a long time or are cold at low temperature outdoors is avoided, and the influence on the health of the testers is reduced.
The invention has the advantages that the automatic test system is used for calibrating the azimuth channel, the test related work is completed by replacing the test personnel, the personnel are prevented from being exposed to the open environment of signal radiation, high-temperature insolation or low-temperature cold for a long time, the working efficiency is improved, the working time is saved, the large-scale production debugging is facilitated, and the labor and material cost is reduced.
As a preferred technical solution, the signal sending module 21 includes a signal generator 211 and a power amplifier 212 electrically connected to each other.
The signal generator 211 sends a signal, and the power amplifier 212 amplifies the signal generator 211, so that the testing device 2 can better receive information, the reliability of the system of the invention is improved, and the implementation by using a small signal is facilitated.
As a preferred solution, the power amplifier 212 is electrically connected to the transmitting antenna 25.
As a preferred solution, the height of the transmitting antenna 25 can be adjusted.
As a preferred technical solution, the rotation shaft angle of the transmitting antenna 25 can be adjusted.
The transmitting antenna 25 is widely used in signal transmission, has a simple structure and a good transmission effect, is convenient for realizing effective transmission of signals through adjustment of the height and the angle of the rotating shaft, and is flexible and efficient.
As a preferred technical solution, the computer 1 and the testing device 2 transmit signals in a wireless communication manner.
This facilitates reduced disruption of electrical signal connections and also facilitates long distance signal transmission.
As a preferred technical solution, the computer 1 and the device under test 3 transmit signals in a wireless communication or wired communication manner.
This is convenient for optimize signal transmission's electric connection structure according to operating condition, and the optional face is wide.
Example 2
As shown in fig. 1 to 4, the present embodiment provides a method for using a calibration system of a broadband rf receiving device, including the following steps:
s1, the position sensing module 22 of the testing device 2 is placed at the central point of the tested device 3, and the signal receiving module 31 receives the position information and transmits the position information to the computer 1;
s2, the testing device 2 is far away from the central point of the tested device 3 and is fixed;
s3, the signal sending module 21 sends signals to the signal receiving module 31 and the computer 1, and the signal receiving module 31 receives the signals and feeds the signals back to the computer 1;
s4, the computer 1 compares the signal sent by the signal sending module 21 with the signal fed back by the signal receiving module 31, records the frequency difference between the two signals, generates a compensation table, and stores the compensation table in the device 3.
The computer 1 is used for signal transmission with the testing device 2 and the device under test 3, the testing body 24 is used as a carrying device of the testing device 2, the body under test 32 is used as a carrying device of the device under test 3, the position sensing module 22 is used for sensing the position of the testing device 2, and the moving module 23 can drive the testing device 2 carried on the testing body 24 to move.
Because the testing device 2 and the tested device 3 are electrically connected with the computer 1, the efficiency of signal transmission and command issuing execution is greatly improved, and the automation degree is improved; the position sensing module 22 and the moving module 23 are respectively electrically connected with the computer 1, so that the computer 1 can sense and control the position of the testing device 2 in real time; in addition, in the operation process, the computer 1 can automatically record and the like, so that the time and energy of manual operation are greatly reduced, the efficiency is greatly improved, the condition that testers are exposed to the sun for a long time or are cold at low temperature outdoors is avoided, and the influence on the health of the testers is reduced.
The invention has the advantages that the automatic test system is used for calibrating the azimuth channel, the test related work is completed by replacing the test personnel, the personnel are prevented from being exposed to the open environment of signal radiation, high-temperature insolation or low-temperature cold for a long time, the working efficiency is improved, the working time is saved, the large-scale production debugging is facilitated, and the labor and material cost is reduced.
As a preferable technical solution, the step S3 further includes the steps of: the height of the transmitting antenna 25 is set.
As a preferable technical solution, the step S3 further includes the steps of: the rotation axis angle of the transmitting antenna 25 is set.
The transmitting antenna 25 is widely used in signal transmission, has a simple structure and a good transmission effect, is convenient for realizing effective transmission of signals through adjustment of the height and the angle of the rotating shaft, and is flexible and efficient.
Example 3
As shown in fig. 1 to 4, this example provides a more specific embodiment based on examples 1 and 2. The method can be implemented by adopting the following steps:
1) the testing device 2 and the tested device 3 are both electrified to control the computer 1 to be started.
2) The position sensing module 22 of the testing device 2 is placed on the central point O of the tested device 3, the position sensing module 22 uploads the GPS data to the control computer 1 through wireless communication, and the control computer 1 controls the moving module 23 to drive the testing device 2 to reach the first testing point according to the required horizontal straight line control distance R.
3) The height H of a lifting rod of a sending antenna 25 of the testing device 2 and the angle psi of the rotating shaft of the antenna are set through the control computer 1, the testing device 2 moves to a corresponding initial position after receiving an instruction, current position information (the height H, the angle psi of the rotating shaft, the distance R and the angle a) of the computer is fed back and controlled, and a closed loop of data is formed. Setting the frequency and the output power of the signal sending module 21 by controlling a computer, and adjusting the height of a lifting rod of a sending antenna 25 to maximize the strength of the frequency point signal, wherein the height of the lifting rod is recorded as H; adjusting the angle of the rotating shaft of the transmitting antenna 25 (preferably, the transmitting antenna 25 can rotate 360 degrees) to maximize the strength of the frequency point signal, and marking the angle between the rotating shaft and the horizontal plane as psi; after the movement is completed, the control computer 1 automatically records the intensity, height H, rotation axis angle ψ, distance R and angle a of the current frequency point signal fed back to the control computer by the device to be measured 3, wherein a denotes an included angle between the connecting line of the signal sending module 21 and the signal receiving module 31 and the vertical perpendicular line of the straight line AB.
4) The control computer 1 sets frequency point frequency information, frequency point angle information, frequency point stepping information and output power information through the network control signal sending module 21 to start testing.
5) The frequency point frequency information and the frequency point angle information received by the tested device 3 are fed back to the computer 1 through wired or wireless communication, the computer 1 compares the frequency point information fed back by the tested device 3 with the frequency point frequency information sent by the testing device 2, and the frequency point frequency error is within +/-3 MHz to determine that the received frequency point is correct; comparing the difference value between the current frequency point angle information fed back by the tested device 3 and the frequency point angle information sent by the testing device 2, and forming a direction finding compensation table TXT file, for example, if the current frequency point angle information fed back by the tested system is 128.3 degrees, and the angle information fed back by the automatic testing system is 130 degrees, the compensation value of the direction finding compensation table in the 130-degree azimuth of the frequency point is filled in 1.7; if the current frequency point angle information fed back by the tested system is 131.8 degrees and the angle information fed back by the automatic testing system is 130 degrees, the compensation value of the direction-finding compensation table on the 130-degree position of the frequency point is filled in to-1.8. And after the residence time is 2 seconds, entering the next frequency point according to the frequency point stepping information by the control computer for testing.
6) In this cycle, the test of all the test points at the angle is completed, the computer 1 controls the test device 2 to move to the next angle according to the GPS data to perform the test of the above steps, and preferably, the transmitting antenna 25 of the test device 2 needs to point to the direction of the center O at each test point.
In this embodiment, the device under test 3 may be provided with a receiving antenna. When the transmitting antenna 25 aims at the receiving antenna at different angles, the signal generator 211 starts to generate radio frequency signals to be output, the power amplifier 212 amplifies the signal power and then radiates the signals by the transmitting antenna 25, finally, the receiving antenna receives the signals and processes the signals to obtain a measured system direction-finding compensation table TXT file in each direction, and the TXT file is written into the measured device 3 to finish the direction calibration of the system.
As described above, the present invention can be preferably realized.
The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto in any way, and any simple modification, equivalent replacement and improvement made to the above embodiment within the spirit and principle of the present invention still fall within the protection scope of the present invention.
Claims (10)
1. A calibration system of a broadband radio frequency receiving device is characterized by comprising a computer (1), a testing device (2) and a device to be tested (3) which are respectively and electrically connected with the computer (1), the testing device (2) comprises a testing body (24), a signal sending module (21), a position sensing module (22) and a moving module (23), the signal sending module (21), the position sensing module (22) and the moving module (23) are all provided with a power supply and are all arranged on the test body (24), the signal sending module (21), the position sensing module (22) and the moving module (23) are respectively and electrically connected with the computer (1), the device to be tested (3) comprises a body to be tested (32) and a signal receiving module (31) arranged on the body to be tested (32), wherein the signal receiving module (31) is electrically connected with the computer (1).
2. A calibration system for a wideband radio frequency receiver apparatus as claimed in claim 1, wherein said signal transmitting module (21) comprises a signal generator (211) and a power amplifier (212) electrically connected to each other.
3. A calibration system for a wideband radio frequency receiving device according to claim 2, wherein the power amplifier (212) is electrically connected to a transmitting antenna (25).
4. A calibration system for a broadband radio frequency receiving device according to claim 3, wherein the height of the transmitting antenna (25) is adjustable.
5. A calibration system for a broadband radio frequency receiving device according to claim 4, characterized in that the angle of the axis of rotation of the transmitting antenna (25) is adjustable.
6. A calibration system for a broadband radio frequency receiving device according to claim 1, wherein the computer (1) communicates signals with the testing device (2) by wireless communication.
7. The system for calibrating a broadband radio frequency receiving device according to claim 6, wherein the computer (1) and the device under test (3) transmit signals by wireless communication or wired communication.
8. Use of a calibration system for a broadband radio frequency receiving device according to any one of claims 3 to 7, characterized in that it comprises the following steps:
s1, the position sensing module (22) of the testing device (2) is placed at the central point of the tested device (3), and the signal receiving module (31) receives the position information and transmits the position information to the computer (1);
s2, the testing device (2) is far away from the central point of the tested device (3) and is fixed;
s3, the signal sending module (21) sends signals to the signal receiving module (31) and the computer (1), and the signal receiving module (31) receives the signals and feeds the signals back to the computer (1);
s4, the computer (1) compares the signal sent by the signal sending module (21) and the signal fed back by the signal receiving module (31), records the frequency difference of the two signals, generates a compensation table, and stores the compensation table in the tested device (3).
9. The method for using the calibration system of the broadband radio frequency receiving device according to claim 8, wherein the step S3 further includes the steps of: the height of the transmitting antenna (25) is set.
10. The method for using the calibration system of the broadband radio frequency receiving device according to claim 9, wherein the step S3 further includes the steps of: the rotation shaft angle of the transmitting antenna (25) is set.
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