Free signal polarity adjustment test bench and free signal polarity adjustment method

Abstract

The application provides a free signal polarity adjustment test bench, which comprises a vehicle base, an inner turntable and an outer turntable arranged from inside to outside; at least one interference signal generator arranged on the inner turntable; and a collection antenna arranged on the outer turntable; wherein the vehicle base is used for fixing a first vehicle of communication parties, and the collection antenna is used for collecting the polarization signal strength of the space magnetic field in a second vehicle communicating with the first vehicle. The signals emitted by the BT emission antenna, the WIFI emission antenna, the base station signal emitter and the GPs signal emitter on the inner turntable are used for interference simulation, the beneficial signal collection antenna is arranged on the outer turntable, the first vehicle on the vehicle base emits a reference signal, the polarization signal strength of the reference signal is collected by the collection antenna outside the vehicle, the distortion degree of the vehicle-mounted distortion signal is confirmed, then the gain adjustment is used for adjusting the signal modulation, and the free signal polarity adjustment is realized.

Description

Technical Field

[0001] This invention relates to the field of electronic and electrical technology, and provides a test bench for adjusting the polarity of ionized signals and a method for adjusting the polarity of ionized signals. Background Technology

[0002] The 5G era is also the era of data transmission. While smart technology brings convenience to people, it also diffuses various WIFI, BT, and GPS signals into space, forming unfriendly chaotic electromagnetic waves that seriously affect the normal operation of smart technology devices, especially smart cars.

[0003] Meanwhile, chaotic electromagnetic waves in space can couple with the high-voltage magnetic field on the vehicle of new energy vehicles, generating distorted signal-noise sources. This causes the radiation on the vehicle to increase exponentially, exceeding national limits. This not only affects regulatory announcements but also harms vehicle operation and the health of personnel.

[0004] Healthy cars are a current trend, so car manufacturers have designed electromagnetic protection systems. However, in terms of effectiveness, existing electromagnetic protection systems require additional materials, which increases the cost of materials and adds a significant burden to car manufacturers. Summary of the Invention

[0005] In view of this, this application provides a test bench for adjusting the polarity of ionized signals, which aims to improve the above-mentioned problems.

[0006] Specifically, the following technical solutions are included:

[0007] On one hand, embodiments of this application provide a test bench for adjusting the polarity of ionized signals, the test bench comprising:

[0008] The vehicle base, inner turntable, and outer turntable are arranged sequentially from the inside out.

[0009] At least one interference signal generator is installed on the internal turntable;

[0010] The data acquisition antenna is mounted on the external turntable;

[0011] The vehicle base is used to fix the first vehicle of the two communicating parties, and the second vehicle receives the polarization signal of the reference signal transmitted by the first vehicle through the acquisition antenna.

[0012] In some embodiments of the present invention, the interference signal generator includes: a BT transmitting antenna, a WIFI transmitting antenna, a base station signal transmitter, and a GPs signal transmitter.

[0013] In some embodiments of the present invention, the vehicle base, the inner turntable, and the outer turntable are concentric circles.

[0014] On the other hand, the present invention provides a method for adjusting the polarity of ionized signals based on a free signal polarity adjustment test bench, the method being as follows:

[0015] (1) Place the first vehicle at the center of the vehicle base, place the signal generator inside the vehicle and connect it to the vehicle antenna, and emit a reference signal through the signal generator;

[0016] (2) Control the external turntable to rotate along the set direction and then stop rotating;

[0017] (3) Control the inner turntable to rotate along the set direction at the set speed, and at the same time control the specified interference signal generator combination to emit interference signals;

[0018] (4) The acquisition antenna acquires the polarization signal intensity of the inner turntable at different rotation angles and determines whether there is a distorted polarization signal;

[0019] (5) If it exists, adjust the gain of the vehicle antenna to control the polarization signal strength to be within the positive polarization signal strength range, return to step (2), until the polarization adjustment of the free signal under the current interference signal generator combination is completed.

[0020] (6) Traverse all combinations of interference signal generators.

[0021] In some embodiments of the present invention, the interference signal generator is a combination of any one, any two, any three, or any four of the following: BT transmitting antenna, WIFI transmitting antenna, base station signal transmitter, and GPs signal transmitter.

[0022] In some embodiments of the present invention, after detecting the presence of a distorted polarization signal, the outer turntable angle, the inner turntable angle, the combination of interference signal generators that emit interference signals, and the corresponding vehicle antenna gain adjustment amount are recorded in a gain adjustment table.

[0023] In some embodiments of the present invention, the distorted polarization signal includes: a polarization signal with excessively weak signal strength and a polarization signal with excessively strong signal strength.

[0024] In some embodiments of the present invention, the gain adjustment method for the vehicle antenna is as follows:

[0025] When the polarization signal strength is too weak, increase the gain of the vehicle-mounted antenna of the first vehicle; when the polarization signal is too strong, decrease the gain of the vehicle-mounted antenna of the first vehicle.

[0026] In some embodiments of the present invention, the method for adjusting the polarity of the free signal in the gain adjustment table is as follows:

[0027] When the current combination of the outer turntable angle, inner turntable angle, and interference signal generator that emits interference signals is detected in the gain adjustment table, the gain adjustment amount of the vehicle's on-board antenna corresponding to the current combination of the outer turntable angle, inner turntable angle, and interference signal generator that emits interference signals is read from the gain adjustment table. The gain of the vehicle's on-board antenna is adjusted based on the read gain adjustment amount. The polarization signal acquired by the acquisition antenna under the current combination of the outer turntable angle, inner turntable angle, and interference signal generator that emits interference signals is detected to be distorted. If it is, the gain of the vehicle's on-board antenna is adjusted further and updated to the gain adjustment table.

[0028] This invention designs a method for adjusting the polarity of ionized signals for the aforementioned test bench used for adjusting the polarity of ionized signals. By using the test bench to determine the outer turntable angle, inner turntable angle, and the combination of interference signal generators that emit interference signals when distorted polarization signals occur, the gain of the vehicle's on-board antenna under the corresponding outer turntable angle, inner turntable angle, and interference signal generator combination is adjusted. The polarization signal of the first vehicle is adjusted to the range of normal polarization signal strength through the gain of the vehicle's on-board antenna, so that the fluctuation of polarization signal strength is small and the possibility of coupling with other interference signals is greatly reduced. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the free signal polarity adjustment test bench provided in an embodiment of the present invention;

[0031] Figure 2 A flowchart of the free signal polarity adjustment method provided in an embodiment of the present invention;

[0032] Figure 3 The following is a comparison diagram of polarization signals before and after vehicle gain adjustment provided in an embodiment of the present invention, wherein (a) is the polarization signal before vehicle antenna adjustment, and (b) is the polarization signal after vehicle antenna adjustment;

[0033] 1. Signal generator; 2. Vehicle base; 3. Internal turntable; 4. BT transmitting antenna; 5. External turntable; 6. WIFI transmitting antenna; 7. Acquisition antenna; 8. Base station signal transmitter; 9. GPS signal transmitter;

[0034] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.

[0037] Figure 1 This is a schematic diagram of the structure of the free signal polarity adjustment test bench provided in an embodiment of the present invention. For ease of explanation, only the parts related to the embodiment of the present invention are shown. The test bench includes:

[0038] The vehicle base (2), inner turntable (3) and outer turntable (5) are arranged sequentially from the inside to the outside;

[0039] At least one interference signal generator is provided on the inner turntable (3);

[0040] The acquisition antenna (7) is mounted on the external turntable (5);

[0041] Among them, the vehicle base (2) is used to fix the first vehicle in the communication between the two parties. The second vehicle receives the polarization signal of the reference signal transmitted by the first vehicle through the acquisition antenna (7) on the outer turntable (5). The rotation of the outer turntable (5) is used to simulate the possible transmission and reception angle of the reference signal between the first vehicle and the second vehicle. The inner turntable (3) simulates the interference signal in space by controlling the type of interference signal and the transmission angle emitted by the interference signal generator.

[0042] In this embodiment of the invention, the interference signal generator includes: a BT transmitting antenna (4), a WIFI transmitting antenna (6), a base station signal transmitter (8), and a GPs signal transmitter (9). The BT transmitting antenna (4), the WIFI transmitting antenna (6), the base station signal transmitter (8), and the GPs signal transmitter (9) are uniformly arranged along the inner turntable (3). The BT transmitting antenna (4) transmits BT signals, the WIFI transmitting antenna (6) transmits WIFI signals, the base station signal transmitter (8) transmits base station signals, and the GPs signal transmitter transmits GPs positioning signals. The interference signals in the space field are simulated by the combination of BT signals, WIFI signals, base station signals, and / or GPs positioning signals. The signal strengths of the BT signals, WIFI signals, base station signals, and GPs positioning signals are fixed.

[0043] In this embodiment of the invention, the vehicle base (2) is circular, and the inner turntable (3) and outer turntable (5) are annular. The center of the inner turntable (3) and outer turntable (5) coincides with the center of the vehicle base (2), which facilitates the control of the inner turntable (3) and outer turntable (5) to rotate around the first vehicle on the vehicle base (2). The rotation directions of the inner turntable (3) and outer turntable (5) can be the same or different.

[0044] This invention simulates interference by transmitting signals from the BT transmitting antenna (4), WIFI transmitting antenna (6), base station signal transmitter (8), and GPs signal transmitter (9) on the inner turntable (3). A beneficial signal acquisition antenna (7) is set on the outer turntable (5). A reference signal is emitted by the first vehicle on the vehicle base (2). The acquisition antenna (7) outside the vehicle acquires the polarization signal intensity of the reference signal to confirm the distortion degree of the vehicle-mounted distortion signal. Then, the gain adjustment is used to adjust the signal modulation to realize the polarity adjustment of these ionized signals.

[0045] Figure 2 The flowchart of the free signal polarity adjustment method provided in the embodiment of the present invention is as follows:

[0046] (1) Place the first vehicle at the center of the vehicle base (2), place the signal generator (1) inside the vehicle and connect it to the vehicle-mounted antenna on the first vehicle, and emit a reference signal with a frequency band of 90.0MHz and a strength of 1dB through the signal generator (1);

[0047] (2) Control the external turntable (5) to rotate along the set direction and then stop rotating;

[0048] (3) Control the inner turntable (3) to rotate along the set direction at the set speed, and at the same time control the specified interference signal generator combination to emit interference signals;

[0049] (4) Acquire the polarization signal intensity of the reference signal at different rotation angles by the antenna (7) Acquire the polarization signal intensity of the internal turntable (3) and determine whether there is a distorted polarization signal.

[0050] (5) If it does not exist, the gain of the vehicle-mounted antenna of the first vehicle under the current external turntable angle and interference signal generator combination does not need to be adjusted. If it exists, adjust the gain of the vehicle-mounted antenna of the first vehicle to control the signal strength of the distorted polarization signal to be within the range of the normal polarization signal strength, return to step (2), until the external turntable completes one revolution, that is, the polarity adjustment of the free signal under the current interference signal generator combination is completed.

[0051] (6) Traverse all interference signal generator combinations to complete the polarity adjustment of the free signal between the first vehicle and the second vehicle.

[0052] In this embodiment of the invention, the interference signal generator combination is any one, any two, any three, or any four of the following: BT transmitting antenna (4), WIFI transmitting antenna (6), base station signal transmitter (8), and GPs signal transmitter (9). Steps (1) to (5) complete the polarity adjustment of the ionized signal under each interference signal generator group. The polarity adjustment of the ionized signal under all the above interference signal generator combinations is traversed in turn, and the polarity adjustment of the ionized signal between the first vehicle and the second vehicle is completed, so as to reduce the interference level and the possibility of interference when the first vehicle and the second vehicle communicate.

[0053] In this embodiment of the invention, after the acquisition antenna (7) on the second vehicle completes the acquisition of polarization signal intensity at different rotation angles of the inner turntable (3), it first detects whether there is a polarization signal with distorted intensity in the acquired polarization signal. If there is, the interference signal generator combination when the distorted polarization signal occurs, the rotation angle of the outer turntable (5), the rotation angle of the inner turntable and the corresponding vehicle antenna gain adjustment amount are recorded in the gain adjustment table.

[0054] In this embodiment of the invention, the distorted polarization signal is either a polarization signal with excessively weak signal strength or a polarization signal with excessively strong signal strength. After the acquisition antenna (7) completes the acquisition of polarization signal strength at different rotation angles of the inner turntable (3), it takes the polarization intensity of the polarization signal at most rotation angles as the normal polarization intensity. If there is a polarization signal that deviates too much from the normal polarization intensity, then the corresponding polarization signal is identified as a polarization signal with distorted polarization intensity. Figure 3 (a) is a schematic diagram of the polarization signal of a distorted polarization signal with excessively low signal strength provided in an embodiment of the present invention. The polarization signal of the signal received by the second vehicle is continuous, and the intensity of the received polarization signal fluctuates greatly. At this time, the reference signal in space is coupled with the interference signal in space, resulting in a distorted polarization signal of the received signal. Figure 3(b) is a schematic diagram showing that after the gain of the on-board antenna of the first vehicle is adjusted, the received signal of the second vehicle does not have a distorted polarization signal. At this time, the polarization signal is continuous, the regular fluctuation of the polarization signal intensity of the received signal is small, and the possibility of the reference signal emitted by the first vehicle being coupled with the interference signal is greatly reduced.

[0055] In this embodiment of the invention, the method for adjusting the gain of the on-board antenna on the first vehicle is as follows:

[0056] When the polarization signal strength is too weak, increase the gain of the on-board antenna on the first vehicle to avoid the signal strength being too weak and the corresponding signal not being received; when the polarization signal is too strong, decrease the gain of the on-board antenna on the first vehicle to avoid the polarization signal being too strong and interfering with the vehicle signal.

[0057] In this embodiment of the invention, the method for adjusting the polarity of the ionized signal based on the gain adjustment table is as follows:

[0058] When the current outer turntable angle, inner turntable angle, and interference signal generator combination emitting interference signals are detected to exist in the gain adjustment table, the gain adjustment amount of the first vehicle's on-board antenna corresponding to the current outer turntable angle, inner turntable angle, and interference signal generator combination emitting interference signals is read from the gain adjustment table. Based on the read on-board antenna gain adjustment amount, the gain of the first vehicle's on-board antenna is adjusted. It is then detected whether the polarization signal collected by the acquisition antenna (7) under the current outer turntable angle, inner turntable angle, and interference signal generator combination emitting interference signals still has distortion. If it does, the gain of the first vehicle's on-board antenna is adjusted and updated to the gain adjustment table. If it does not, there is no need to adjust the gain adjustment amount of the first vehicle's on-board antenna recorded in the gain adjustment table for the current outer turntable angle, inner turntable angle, and interference signal generator combination emitting interference signals. The above process is repeated until the polarization signal collected by the acquisition antenna (7) does not have intensity distortion.

[0059] This invention designs a method for adjusting the polarity of ionized signals for the aforementioned test bench used for adjusting the polarity of ionized signals. By using the test bench to determine the outer turntable angle, inner turntable angle, and the combination of interference signal generators that emit interference signals when distorted polarization signals occur, the polarization signal of the first vehicle is adjusted to the normal polarization signal strength range by adjusting the gain of the vehicle's on-board antenna under the corresponding outer turntable angle, inner turntable angle, and interference signal generator combination. This results in smaller fluctuations in the polarization signal strength of the received signal.

[0060] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0061] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method for adjusting the polarity of a free signal, characterized in that, The free signal polarity adjustment test bench includes: The vehicle base, inner turntable, and outer turntable are arranged sequentially from the inside out. At least one interference signal generator is installed on the internal turntable; The data acquisition antenna is mounted on the external turntable; Among them, the vehicle base is used to fix the first vehicle of both parties in communication, and the acquisition antenna receives the polarization signal of the reference signal emitted by the first vehicle. The method for adjusting the polarity of the ionized signal based on the aforementioned free signal polarity adjustment test bench is as follows: (1) Place the first vehicle at the center of the vehicle base, place the signal generator inside the vehicle and connect it to the vehicle antenna, and emit a reference signal through the signal generator; (2) Control the external turntable to rotate along the set direction and then stop rotating; (3) Control the inner turntable to rotate along the set direction at the set speed, and at the same time control the specified interference signal generator combination to emit interference signals; (4) Collect the polarization signal intensity of the antenna receiving turntable at different rotation angles and determine whether there is a distorted polarization signal; (5) If it exists, adjust the gain of the vehicle antenna to control the polarization signal strength to be within the normal polarization signal strength range, return to step (2), until the polarization adjustment of the free signal under the current interference signal generator combination is completed; (6) Traverse all combinations of interference signal generators; After detecting the presence of a distorted polarization signal, the outer turntable angle, the inner turntable angle, the combination of interference signal generators that emitted the interference signal, and the corresponding vehicle antenna gain adjustment amount are recorded in the gain adjustment table.

2. The method for adjusting the polarity of the ionized signal as described in claim 1, characterized in that, The interference signal generators include: BT transmitting antenna, WIFI transmitting antenna, base station signal transmitter and GPS signal transmitter.

3. The method for adjusting the polarity of the ionized signal as described in claim 1, characterized in that, The base, inner turntable, and outer turntable are concentric circles.

4. The method for adjusting the polarity of the ionized signal as described in claim 1, characterized in that, The interference signal generator combination can be any one, any two, any three, or any four of the following: BT transmitting antenna, WIFI transmitting antenna, base station signal transmitter, and GPS signal transmitter.

5. The method for adjusting the polarity of the ionized signal as described in claim 1, characterized in that, Abnormal polarization signals include polarization signals with excessively weak signal strength and polarization signals with excessively strong signal strength.

6. The method for adjusting the polarity of the ionized signal as described in claim 1, characterized in that, The specific method for adjusting the gain of a vehicle antenna is as follows: When the polarization signal strength is too weak, increase the gain of the vehicle-mounted antenna of the first vehicle; when the polarization signal is too strong, decrease the gain of the vehicle-mounted antenna of the first vehicle.

7. The method for adjusting the polarity of the ionized signal as described in claim 1, characterized in that, The method for adjusting the polarity of the ionized signal based on the gain adjustment table is as follows: When the current combination of the outer turntable angle, inner turntable angle, and interference signal generator that emits interference signals is detected in the gain adjustment table, the gain adjustment amount of the vehicle's on-board antenna corresponding to the current combination of the outer turntable angle, inner turntable angle, and interference signal generator that emits interference signals is read from the gain adjustment table. The gain of the vehicle's on-board antenna is adjusted based on the read gain adjustment amount. The polarization signal acquired by the acquisition antenna under the current combination of the outer turntable angle, inner turntable angle, and interference signal generator that emits interference signals is detected to be distorted. If it is, the gain of the vehicle's on-board antenna is adjusted further and updated to the gain adjustment table.

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