Automatic sampling control system of prognosis selector

Abstract

The invention relates to the technical field of sampling control, and discloses a prognostic selector automatic sampling control system, which comprises a system module assembly, the system module assembly comprises a manual adjustment module, a data automatic acquisition module, a program programming module and a function detection module, the manual adjustment module comprises a segmentation module and a frequency adjustment module, and the segmentation module comprises a data automatic acquisition module, a program programming module and a function detection module. The segmentation module divides a full wave band into four wave bands, the frequency adjustment module changes the frequency control wave band in a wave band control bar, and the automatic data acquisition module automatically generates an ABCD. DAT file from 1.999999 MHz to 30.00001 MHz according to the minimum step diameter of 2.048 KHz. The whole collection process is automatic, the working efficiency is greatly improved, the personnel cost is reduced, meanwhile, the accuracy of automatic collection and control systems is improved compared with manual collection, sampling points which do not need to be stored can be automatically abandoned through calculation, and repeated work is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of sampling control, and in particular to an automatic sampling control system for a pre-selector and a post-selector. Background Art

[0002] Pre-selector, also known as frequency hopping filter, has been increasingly used in the field of shortwave communication in recent years. It is a pre-selection function in the receiver channel, selecting the useful signal of the required working frequency, filtering out the out-of-band interference signal, and reducing interference; at the same time, it provides the receiver with large RF signal and lightning protection; when used in the transmission channel, it is a post-selection function. The post-selector is located between the exciter and the power amplifier, which greatly suppresses the out-of-band noise signal and spurious emission (stray) signal, thereby greatly reducing the interference of the transmitter to the receiver near the transmitter.

[0003] The current pre-selector and post-selector are usually based on the LC resonant circuit as the prototype, and the purpose of controlling the center frequency of the pre-selector is achieved by controlling the on and off of the capacitor participating in the circuit resonance. However, the general pre-selector has insufficient automation during data collection and low working efficiency. Therefore, an automatic sampling control system for the pre-selector and post-selector is proposed. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic sampling control system for a pre-selector and a post-selector, which solves the problems of insufficient automation and low working efficiency of general pre-selectors during data collection.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A pre-selector automatic sampling control system includes a system module assembly, the system module assembly includes a manual adjustment module, an automatic data acquisition module, a program burning module and a function detection module, the manual adjustment module includes a segmentation module and a frequency adjustment module, the segmentation module divides the full band into four bands, the frequency adjustment module changes the frequency control band in the band control bar, the automatic data acquisition module automatically generates an ABCD.DAT file from 1.999999MHz to 30.00001MHz according to a minimum step of 2.048KHz, and a computer The self-acquisition system controls the state of the capacitor participating in the loop resonance through the tuning data of 0000-2047, connects to the network analyzer through the GPIB interface, records the center frequency according to the insertion loss and 3dB bandwidth of the bandpass filter under the current corresponding state capacitance, records the current capacitance on-off state in the corresponding frequency point of the ABCD.DAT file in the form of 0000-2047 and defines it as valid data, and the program burning module burns the collected ABCD.DAT file through the read-write port and burns the file into the FLASH memory.

[0009] Furthermore, the manual adjustment module controls the 11 resonant capacitors in each band by corresponding to all on-off combinations of the 11 capacitors in 2048 states from 0000 to 2047. During the debugging process, the center frequency of the filter in the band is controlled by controlling the 0000-2047 capacitors.

[0010] On the basis of the above scheme, the program burning module only needs to provide the required filter center frequency when burning the file, and the pre-selector and post-selector automatically switch the bandpass filter of the current frequency.

[0011] As a further solution of the present invention, the function detection module includes a switching module and a collection module. When the computer sends out the center frequency of the bandpass filter, the switching module controls the pre-selector to automatically switch to the bandpass filter of the current frequency. The computer automatic acquisition system reads various indicators of the bandpass filter on the network analyzer through the GPIB interface.

[0012] Furthermore, the function detection module includes a determination module and a report generation module. The determination module makes a qualification determination based on the information collected by the collection module, and then generates a report through the report generation module.

[0013] On the basis of the above-mentioned scheme, the system module assembly includes a rejection module, which screens and rejects the data after the automatic data acquisition module collects the data.

[0014] Furthermore, the pre-selector of the automatic data acquisition module automatically samples and controls the program input of the band, frequency and 11-bit binary capacitor group on-off information, generates the band and capacitor on-off control signal through programming, and converts it into high and low levels to control the conduction of the PIN tube, thereby controlling the center frequency of the filter by controlling the size of the parallel capacitor, and then performs automatic step measurement, and uses the algorithm to store the sampled 3dB bandwidth, insertion loss and center frequency information in the ABCD.DAT file, and burns the file to the microcontroller to perform frequency control of the pre-selector.

[0015] The beneficial effects of the present invention are:

[0016] 1. In the present invention, the automatic data acquisition module automatically generates the ABCD.DAT file and generates about 10,000 sampling frequency points according to the 2.048KHz step, which not only ensures the various indicators of the bandpass filter, but also reduces the waste caused by too many sampling points.

[0017] 2. In the present invention, the collection is fully automatic, which greatly improves work efficiency and reduces personnel costs. At the same time, the accuracy of the automatic collection and control system is improved compared with manual collection. The sampling points that do not need to be stored can be discarded by calculation to avoid duplication of work.

[0018] 3. In the present invention, the program burning module only needs to provide the required filter center frequency when burning the file, and the pre-selector automatically switches the bandpass filter of the current frequency, which is easy to operate.

[0019] 4. In the present invention, the filter center frequency is recorded according to the combination of capacitors, with 2047*4=8094 acquisition points in the whole process. Automatic elimination of combinations that are out of range and repeated requires recording a maximum of 7000 acquisition points, thus reducing complicated and repetitive work and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the system framework structure of a pre-selector and post-selector automatic sampling control system proposed by the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. It should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0022] Example 1

[0023] Reference Figure 1 A pre-selector and post-selector automatic sampling control system includes a system module assembly, which includes a manual adjustment module, an automatic data acquisition module, a program burning module and a function detection module. The manual adjustment module includes a segmentation module and a frequency adjustment module. The segmentation module divides the full band into four bands to achieve full frequency coverage of the shortwave pre-selector within the range of 1.6MHz-30MHz. The frequency adjustment module achieves the purpose of controlling the band by changing the frequency in the band control bar. The automatic data acquisition module automatically generates an ABCD.DAT file from 1.999999MHz to 30.00001MHz according to a minimum step of 2.048KHz. The automatically generated ABCD.DAT file generates about 10,000 sampling frequency points according to a step of 2.048KHz, which not only ensures the various indicators of the bandpass filter, but also reduces the sampling frequency. To avoid the waste caused by too many sample points, the computer self-collection system controls the state of the capacitor participating in the loop resonance through the tuning data of 0000-2047, connects with the network analyzer through the GPIB interface, records the center frequency according to the insertion loss and 3dB bandwidth of the bandpass filter under the current corresponding state capacitance, and records the current capacitance on-off state in the corresponding frequency point of the ABCD.DAT file in the form of 0000-2047 and defines it as valid data. The program burning module burns the collected ABCD.DAT file through the read-write port and burns the file into the FLASH memory. The whole collection process is automatic, which greatly improves the work efficiency and reduces the personnel cost. At the same time, the accuracy of the automatic collection and control system is improved compared with the manual collection. The sampling points that do not need to be stored can be discarded by calculation to avoid duplication of work.

[0024] In the present invention, the manual adjustment module controls the 11 resonant capacitors of each band by corresponding all the on-off combinations of the 11 capacitors to the 2048 states from 0000 to 2047. During the debugging process, the center frequency of the filter in the band is controlled by controlling the 0000-2047 capacitors. When burning a file, the program burning module only needs to provide the required filter center frequency, and the pre-selector automatically switches the bandpass filter of the current frequency, which is easy to operate.

[0025] Example 2

[0026] Reference Figure 1A pre-selector and post-selector automatic sampling control system includes a system module assembly, which includes a manual adjustment module, an automatic data acquisition module, a program burning module and a function detection module. The manual adjustment module includes a segmentation module and a frequency adjustment module. The segmentation module divides the full band into four bands to achieve full frequency coverage of the shortwave pre-selector within the range of 1.6MHz-30MHz. The frequency adjustment module achieves the purpose of controlling the band by changing the frequency in the band control bar. The automatic data acquisition module automatically generates an ABCD.DAT file from 1.999999MHz to 30.00001MHz according to a minimum step of 2.048KHz. The automatically generated ABCD.DAT file generates about 10,000 sampling frequency points according to a step of 2.048KHz, which not only ensures the various indicators of the bandpass filter, but also reduces the sampling frequency. To avoid the waste caused by too many sample points, the computer self-collection system controls the state of the capacitor participating in the loop resonance through the tuning data of 0000-2047, connects with the network analyzer through the GPIB interface, records the center frequency according to the insertion loss and 3dB bandwidth of the bandpass filter under the current corresponding state capacitance, and records the current capacitance on-off state in the corresponding frequency point of the ABCD.DAT file in the form of 0000-2047 and defines it as valid data. The program burning module burns the collected ABCD.DAT file through the read-write port and burns the file into the FLASH memory. The whole collection process is automatic, which greatly improves the work efficiency and reduces the personnel cost. At the same time, the accuracy of the automatic collection and control system is improved compared with the manual collection. The sampling points that do not need to be stored can be discarded by calculation to avoid duplication of work.

[0027] In the present invention, the manual adjustment module controls the 11 resonant capacitors of each band by corresponding all the on-off combinations of the 11 capacitors to the 2048 states from 0000 to 2047. During the debugging process, the center frequency of the filter in the band is controlled by controlling the 0000-2047 capacitors. When burning a file, the program burning module only needs to provide the required filter center frequency, and the pre-selector automatically switches the bandpass filter of the current frequency, which is easy to operate.

[0028] In the present invention, the function detection module includes a switching module and a collecting module. When the computer sends out the center frequency of the bandpass filter, the switching module controls the pre-selector to automatically switch to the bandpass filter of the current frequency. The computer automatic acquisition system reads various indicators of the bandpass filter on the network analyzer through the GPIB interface. The function detection module includes a determination module and a report generating module. The determination module makes a qualification determination based on the information collected by the collecting module, and then generates a report through the report generating module.

[0029] In particular, the system module assembly includes a rejection module. After the data automatic acquisition module collects data, the rejection module screens and rejects the data, and records the filter center frequency according to the combination of capacitors. There are 2047*4=8094 acquisition points in the whole process. Automatic elimination of combinations that are not within the range and repeated requires recording a maximum of 7000 acquisition points, which reduces complicated repetitive work and improves work efficiency. The pre-selector and post-selector of the data automatic acquisition module automatically samples and controls the program input of band, frequency and 11-bit binary capacitor group on-off information, generates band and capacitor on-off control signals through programming, and converts them into high and low levels to control the conduction of the PIN tube, thereby controlling the center frequency of the filter by controlling the size of the parallel capacitor, and then performs automatic step measurement, and uses an algorithm to store the sampled 3dB bandwidth, insertion loss and center frequency information in the ABCD.DAT file. The file can be burned to the microcontroller to perform frequency control of the pre-selector and post-selector.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pre-selector automatic sampling control system, comprising a system module assembly, characterized in that: The system module assembly includes a manual adjustment module, an automatic data acquisition module, a program burning module and a function detection module. The manual adjustment module includes a segmentation module and a frequency adjustment module. The segmentation module divides the full band into four bands. The frequency adjustment module changes the frequency control band in the band control bar. The automatic data acquisition module automatically generates an ABCD.DAT file from 1.999999MHz to 30.00001MHz according to a minimum step of 2.048KHz. The computer self-acquisition system controls the state of the capacitor participating in the loop resonance through the tuning data of 0000-2047, and is connected to the network analyzer through the GPIB interface. The center frequency is recorded according to the insertion loss and 3dB bandwidth of the bandpass filter under the current corresponding state capacitance, and the current capacitance on-off state is recorded in the corresponding frequency point of the ABCD.DAT file in the form of 0000-2047 and defined as valid data. The program burning module burns the collected ABCD.DAT file through the read-write port to burn the file into the FLASH memory.

2. The automatic sampling control system of a pre-selector and post-selector according to claim 1, characterized in that: The manual adjustment module controls the 11 resonant capacitors in each band by corresponding all on-off combinations of the 11 capacitors to the 2048 states from 0000 to 2047. During the debugging process, the center frequency of the filter in the band is controlled by controlling the 0000-2047 capacitors.

3. The automatic sampling control system of a pre-selector and post-selector according to claim 1, characterized in that: The program burning module only needs to provide the required filter center frequency when burning the file, and the pre-selector and post-selector automatically switch the bandpass filter of the current frequency.

4. The automatic sampling control system of a pre-selector and post-selector according to claim 1, characterized in that: The function detection module includes a switching module and a collection module. When the computer sends out the center frequency of the bandpass filter, the switching module controls the pre-selector to automatically switch to the bandpass filter of the current frequency. The computer automatic collection system reads various indicators of the bandpass filter on the network analyzer through the GPIB interface.

5. The automatic sampling control system for pre-selector and post-selector according to claim 4, characterized in that: The function detection module includes a determination module and a report generation module. The determination module makes a qualification determination based on the information collected by the collection module, and then generates a report through the report generation module.

6. The automatic sampling control system for pre-selector and post-selector according to claim 1, characterized in that: The system module assembly comprises a rejection module, which screens and rejects the data after the automatic data acquisition module acquires the data.

7. The automatic sampling control system for pre-selector and post-selector according to claim 6, characterized in that: The pre-selector automatic sampling and control program of the data automatic acquisition module inputs the band, frequency and 11-bit binary capacitor group on-off information, generates the band and capacitor on-off control signal through programming, and converts it into high and low levels to control the conduction of the PIN tube, thereby controlling the center frequency of the filter by controlling the size of the parallel capacitor, and then performs automatic step measurement, and uses the algorithm to store the sampled 3dB bandwidth, insertion loss and center frequency information in the ABCD.DAT file, and burns the file to the single-chip microcomputer to perform frequency control of the pre-selector.

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