A radio frequency signal acquisition and processing system, method and storage medium

Abstract

This invention provides a radio frequency (RF) signal acquisition and processing system, method, and storage medium. The system includes: a mode conversion module for receiving a working signal from an associated acquisition module, generating a mode signal based on the working signal, and sending it to the acquisition module; an acquisition module for connecting to the mode conversion module to receive the mode signal and updating the working area of ​​the acquisition module based on the mode signal to acquire RF signals in real time according to the working area; a down-conversion module for connecting to the acquisition module to receive the RF signal and down-converting the RF signal to an intermediate frequency (IF) signal; a splitting module for connecting to the down-conversion module to receive the IF signal and splitting the IF signal to obtain sub-IF signals corresponding to the same working area; and a processing module for connecting to the splitting module to receive the sub-IF signals and processing and analyzing the sub-IF signals to obtain analysis results. This application can improve the fault tolerance of RF signal acquisition and processing.

Description

Technical Field

[0001] This application relates to the field of radio frequency acquisition technology, and in particular to a radio frequency signal acquisition and processing system, method and storage medium. Background Technology

[0002] In an era that values ​​quality of life, more people are choosing to add multimedia devices to their cars. To capture a larger market share, parts manufacturers supplying OEMs need to continuously develop various multimedia devices with transceiver capabilities, such as FM radio, CMMB digital TV, GPS navigation, and satellite radio. However, during product development and improvement, engineers generally lack a clear understanding of the actual strength and variations of outdoor radio frequency signals, and can only design according to the same parameter requirements of relevant standards.

[0003] Given this situation, product development requires statistical data on radio frequency (RF) signals from specific, real-world environments to adjust existing design standards, making the product more suitable for normal operation in various harsh conditions. Currently, the multimedia equipment inside the car sends the generated RF signals to the car's antenna located on the outside of the vehicle. An externally configured RF signal acquisition and processing device receives the RF signals emitted by the car's antenna and analyzes and processes them to provide guidance for subsequent product development.

[0004] Alongside a section of road in each of the harsh environmental conditions, several radio frequency (RF) signal acquisition and processing devices are installed. Each device includes a signal acquisition module, a down-conversion module, an intermediate frequency (IF) module, and a processing module. To ensure efficient resource utilization, each device is installed in a different location, with its own designated working area. RF signals emitted within this area are analyzed and processed by the corresponding device. The working areas of each device do not overlap. However, operating in harsh environments, malfunctions are unavoidable, potentially preventing the devices from receiving or processing RF signals. Therefore, if a device malfunctions, subsequent RF signals generated in its corresponding working area cannot be acquired or processed, adding a layer of risk to the fault tolerance of the RF signal acquisition and processing system. Summary of the Invention

[0005] To improve the fault tolerance of radio frequency signal acquisition and processing, embodiments of this application provide a radio frequency signal acquisition and processing system, method, and storage medium.

[0006] In a first aspect, this embodiment provides a radio frequency signal acquisition and processing system, the system comprising: a mode conversion module, an acquisition module, a down-conversion module, a splitting module, and a processing module; wherein,

[0007] The mode conversion module is used to receive working signals from associated acquisition modules that are associated with the acquisition module, generate mode signals based on the working signals, and send them to the acquisition module.

[0008] The acquisition module is used to connect to the mode conversion module to receive the mode signal and update the working area of ​​the acquisition module according to the mode signal, so as to acquire radio frequency signals in real time according to the working area.

[0009] The downconversion module is used to connect to the acquisition module to receive the radio frequency signal and downconvert the radio frequency signal into an intermediate frequency signal;

[0010] The splitting module is used to connect to the downconverter module to receive the intermediate frequency signal and split the intermediate frequency signal to obtain sub-intermediate frequency signals corresponding to the same working area.

[0011] The processing module is connected to the splitting module to receive the sub-IF signal and process and analyze the sub-IF signal to obtain the analysis result.

[0012] In some embodiments, the mode signal includes one of a first mode signal and a second mode signal, each working signal including keywords characterizing the attributes of the working signal, and generating the mode signal based on the working signal includes:

[0013] Determine whether the keyword in the working signal is a keyword that represents normal operation. If so, generate a first mode signal that represents that the acquisition module still maintains the existing working area based on the working signal.

[0014] Otherwise, the second mode signal of the working area needs to be adjusted by the characterization acquisition module based on the working signal.

[0015] In some embodiments, each mode signal includes a location number, and updating the working area of ​​the acquisition module based on the mode signal includes:

[0016] Determine whether the mode signal is a first mode signal. If it is a first mode signal, set the working area of ​​the acquisition module to the default working area according to the first mode signal to complete the update of the working area of ​​the acquisition module.

[0017] If it is the second mode signal, obtain the direction information of the current road, the position number sequence of all acquisition modules in the current road, and the reference position number of the current acquisition module;

[0018] Based on the direction information and the position number order, the relative direction information of the problem position number in the mode signal relative to the reference position number is determined, and the working area of ​​the acquisition module is updated according to the relative direction information.

[0019] In some embodiments, updating the working area of ​​the acquisition module based on the relative direction information includes:

[0020] The relative direction information is increased by 90 degrees in both the clockwise and counterclockwise directions to obtain the direction range represented by the relative direction information;

[0021] The receiving distance of the acquisition module within the directional range represented by the relative directional information is adjusted to a first receiving distance to increase the working area of ​​the acquisition module.

[0022] In some embodiments, splitting the intermediate frequency (IF) signal to obtain sub-IF signals corresponding to the same working region includes:

[0023] Based on the pre-stored intermediate frequency signal quality range, it is sequentially determined whether the quality of each intermediate frequency signal falls within the intermediate frequency signal quality range. If it does, the intermediate frequency signal is marked as a fixed intermediate frequency signal. The intermediate frequency signal quality range represents the quality range of the intermediate frequency signal within the default range corresponding to the current acquisition module.

[0024] If it does not fall into the category, the intermediate frequency signal is marked as a problem intermediate frequency signal.

[0025] In some embodiments, the processing module includes an intermediate frequency unit and an analysis unit; wherein,

[0026] The intermediate frequency unit is connected to the down-conversion module to receive the sub-IF signal and sample the sub-IF signal to obtain a digital sub-IF signal;

[0027] The analysis unit is connected to the intermediate frequency unit to receive the digital sub-IF signal and analyze the digital sub-IF signal according to a preset analysis logic to obtain the analysis result.

[0028] In some embodiments, the system further includes an alarm module connected to the mode conversion module to receive the mode signal and determine whether the mode signal is a first mode signal. If it is a first mode signal, the alarm module remains in sleep mode.

[0029] If it is a second mode signal, then an alarm signal is generated based on the second mode signal.

[0030] In some embodiments, the system further includes a storage module and a display module; wherein,

[0031] The storage module is connected to the processing module to receive the analysis results and store them in chronological order.

[0032] The display module is connected to the downconversion module to receive the intermediate frequency signal and display the intermediate frequency signal;

[0033] The display module is also connected to the processing module to receive the analysis results and display them.

[0034] Secondly, this embodiment provides a radio frequency signal acquisition and processing method, the method comprising:

[0035] Receive the working signal and generate a mode signal based on the working signal;

[0036] The working area is updated according to the mode signal in order to acquire radio frequency signals in real time based on the working area;

[0037] The radio frequency signal is down-converted to an intermediate frequency signal;

[0038] The intermediate frequency signal is split to obtain sub-intermediate frequency signals corresponding to the same working area;

[0039] The sub-IF signal is analyzed and processed to obtain the analysis results.

[0040] Thirdly, embodiments of this application provide a storage medium storing a computer program that can run on a processor, wherein the computer program, when executed by the processor, implements a radio frequency signal acquisition and processing method as described in the first aspect.

[0041] By employing the aforementioned system, this application adds a mode conversion module to receive the working signal sent by the associated acquisition module. This working signal has two attributes, thereby generating a corresponding mode signal based on the attributes of the working signal and sending it to the acquisition module. This allows the acquisition module to update its working area based on the model signal, acquiring only the radio frequency (RF) signal within that working area in real time. It can then process the RF signal within the corresponding working area of ​​the associated acquisition module. Subsequently, a downconversion module performs frequency reduction processing to obtain an intermediate frequency (IF) signal. A splitting module further splits the IF signal to obtain sub-IF signals corresponding to the same working area. A processing module then processes and analyzes these sub-IF signals to obtain the analysis results. Thus, if the RF signal acquisition and processing system where the associated acquisition module resides fails, the RF signal can be acquired and processed using an associated RF signal acquisition and processing system, improving the fault tolerance of the RF signal acquisition and processing system. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the distribution of the radio frequency signal acquisition and processing device provided in the embodiments of this application.

[0043] Figure 2 This is a schematic diagram of the radio frequency signal acquisition and processing system provided in the embodiments of this application and its corresponding default working area.

[0044] Figure 3 This is a schematic diagram of the connection of various modules in the radio frequency signal acquisition and processing system provided in the embodiments of this application.

[0045] Figure 4 This is a block diagram illustrating the generation of a mode signal based on a working signal, as provided in an embodiment of this application.

[0046] Figure 5 This is a block diagram of the working area of ​​the acquisition module updated according to the pattern signal provided in the embodiments of this application.

[0047] Figure 6 This is a block diagram of the radio frequency signal acquisition and processing method provided in the embodiments of this application. Detailed Implementation

[0048] To better understand the purpose, technical solutions, and advantages of this application, it has been described and illustrated below with reference to the accompanying drawings and embodiments. However, those skilled in the art should understand that this application can be implemented without these details. It will be apparent to those skilled in the art that various modifications can be made to the embodiments disclosed in this application, and the general principles defined in this application can be applied to other embodiments and application scenarios without departing from the principles and scope of this application. Therefore, this application is not limited to the illustrated embodiments, but is consistent with the broadest scope claimed in this application.

[0049] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0050] Radio frequency (RF) refers to electromagnetic frequencies that can travel from radio frequency to space, with a range from 300kHz to 300GHz. RF is essentially radio frequency current, abbreviated as RF, and it's short for high-frequency alternating current electromagnetic waves. Alternating current that changes less than 1000 times per second is called low-frequency current, while that that changes more than 10,000 times per second is called high-frequency current; RF is such a high-frequency current. RF (300kHz-300GHz) is a relatively high-frequency band (greater than 10kHz). RF signals are modulated radio waves with a specific transmission frequency.

[0051] Each radio frequency signal acquisition and processing system relies on each radio frequency signal acquisition and processing device. Figure 1 This is a schematic diagram showing the distribution of the radio frequency signal acquisition and processing device provided in the embodiments of this application. For example... Figure 1 As shown, harsh environments increase the risks posed by unpredictable factors to vehicles during operation. To mitigate the dangers caused by complex vehicle conditions, roads in harsh environments are designed as one-way streets. A corresponding radio frequency (RF) signal acquisition and processing device is installed alongside each one-way street in a harsh environment. This embodiment uses a section of such a road as an example. Several RF signal acquisition and processing devices are arranged equidistantly along the road, and each device is fixed in its current position. If a device needs to be moved, it must first be removed.

[0052] Considering that the smooth line segment formed by all radio frequency signal acquisition and processing devices is parallel to the one-way road, and that the one-way road has an installation area for radio frequency signal acquisition and processing devices, the minimum vertical distance 'a' between the entire installation area and the one-way road is obtained, and this minimum vertical distance 'a' is determined as the vertical distance between each radio frequency signal acquisition and processing device to be installed and the one-way road. Figure 2This is a schematic diagram showing the radio frequency signal acquisition and processing system provided in this application embodiment and its corresponding default working area. For example... Figure 2 As shown, in this embodiment, on this one-way road, taking the starting point of the one-way road as a reference point, a radio frequency (RF) signal acquisition and processing device is installed perpendicular to the one-way road and at a minimum vertical distance *a* from the reference point. Then, taking the current installation position of the RF signal acquisition and processing device as the starting point, another RF signal acquisition and processing device is installed along a direction parallel to the one-way road at a distance of (2a√3) / 3 from the current location of the RF signal acquisition and processing device. This process continues, taking the newly installed RF signal acquisition and processing device as the starting point, and installing another RF signal acquisition and processing device along a direction parallel to the one-way road at a distance of (2a√3) / 3 from the current location of the RF signal acquisition and processing device. This continues until the last installed RF signal acquisition and processing device is not located on one side of the current road and is no more than *a* from the end point of the current road.

[0053] When a car is driving on the current road and using its in-vehicle multimedia equipment, the equipment emits corresponding radio frequency (RF) signals. Each RF signal acquisition and processing system within the RF signal acquisition and processing device has a corresponding working area, responsible only for acquiring and processing the RF signals within that area. When the car moves to another working area, the RF signal acquisition and processing system in that area no longer acquires or processes the RF signals emitted by the car. Each RF signal acquisition and processing system on the current road has its own default working area. All default working areas are independent and cover the current road. The default working area of ​​each RF signal acquisition and processing system is a circular area with the location of the RF signal acquisition and processing device as its center and a radius of (2a√3) / 3. This default working area is only a part of the maximum working area corresponding to the RF signal acquisition and processing system. The working area of ​​the RF signal acquisition and processing system is related to the vertical distance between the RF signal acquisition and processing device's installation location and the current road; the greater the vertical distance, the larger the default working area.

[0054] Figure 3 This is a schematic diagram showing the connection of various modules in the radio frequency signal acquisition and processing system provided in the embodiments of this application. For example... Figure 3As shown, the radio frequency (RF) signal acquisition and processing system includes a mode conversion module, an acquisition module, a down-conversion module, a splitting module, and a processing module. The mode conversion module receives working signals from associated acquisition modules, generates mode signals based on these signals, and sends the mode signals to the acquisition module. The acquisition module is connected to the mode conversion module to receive the mode signals and update its working area based on them, enabling real-time acquisition of RF signals according to the working area. The down-conversion module is connected to the acquisition module to receive the RF signals and down-convert them to intermediate frequency (IF) signals. The splitting module is connected to the down-conversion module to receive the IF signals and split them into sub-IF signals corresponding to the same working area. The processing module is connected to the splitting module to receive the sub-IF signals and analyze them to obtain the analysis results.

[0055] Two adjacent radio frequency (RF) signal acquisition and processing devices are mutually associated RF signal acquisition and processing devices. The RF signal acquisition and processing systems within these two devices are mutually associated RF signal acquisition and processing systems. The acquisition modules within these two RF signal acquisition and processing systems are mutually associated acquisition modules. This embodiment uses an RF signal acquisition and processing system on a current road as an example. Since the RF signal acquisition and processing devices are in harsh environments, they inevitably experience malfunctions, leading to a failure to function properly, i.e., the inability to continue acquiring and processing RF signals within their default working area. When the normal working state of an RF signal acquisition and processing system changes, it sends a working signal to the mode conversion module in the associated RF signal acquisition and processing system. The receiving mode conversion module then generates a corresponding mode signal based on the attributes of the working signal.

[0056] There are two main types of changes when the normal operating state of the RF signal acquisition and processing system changes. The first change is that the RF signal acquisition and processing system switches from being malfunctioning to being operational, and the second change is that the RF signal acquisition and processing system switches from being operational to being malfunctioning. Each working signal includes a keyword characterizing its attributes, and the keyword in the working signal differs depending on the change. The mode signal generated based on different working signals also differs, and the mode signal includes one of a first mode signal and a second mode signal. Figure 4 This is a block diagram illustrating the generation of a mode signal based on a working signal, provided in an embodiment of this application. For example... Figure 4 As shown, generating a mode signal based on a working signal includes the following steps:

[0057] Step S101: Determine whether the keyword in the working signal is a keyword that represents normal operation. If so, generate a first mode signal that represents that the acquisition module still maintains the existing working area based on the working signal.

[0058] Step S102: Otherwise, generate a second mode signal representing the adjustment of the working area by the characterization acquisition module based on the working signal.

[0059] Each radio frequency (RF) signal acquisition and processing device in the current road has a unique location number corresponding to its position among all RF signal acquisition and processing devices. The RF signal acquisition system also has a location number consistent with the RF signal acquisition and processing devices. Each mode conversion module writes the corresponding location number into its working signal before transmission. Each mode conversion module is equipped with an RF signal receiver to receive working signals sent by associated mode conversion modules. By examining the keywords and location numbers in the working signals, it generates either a first mode signal or a second mode signal, ensuring that both the first and second mode signals include a location number.

[0060] The output of the mode conversion module is connected to the input of the acquisition module. After generating a mode signal, the mode conversion module sends the mode signal to the acquisition module. The acquisition module adjusts and updates its working area based on the mode signal. Figure 5 This is a block diagram of the working area of ​​the acquisition module updated according to the pattern signal, provided in an embodiment of this application. For example... Figure 5 As shown, updating the working area of ​​the acquisition module based on the pattern signal includes the following steps:

[0061] Step S201: Determine whether the mode signal is the first mode signal. If it is the first mode signal, set the working area of ​​the acquisition module to the default working area according to the first mode signal to complete the update of the working area of ​​the acquisition module.

[0062] Step S202: If it is a second mode signal, obtain the direction information of the current road, the position number sequence of all acquisition modules in the current road, and the reference position number corresponding to the current acquisition module.

[0063] Step S203: Based on the direction information and the position number sequence, determine the relative direction information of the problem position number in the mode signal relative to the reference position number, and update the working area of ​​the acquisition module based on the relative direction information.

[0064] The data acquisition module utilizes a smart antenna. A suitable smart antenna model can be selected based on actual needs. This smart antenna can choose an appropriate directional beam to adjust the working area. Both the first and second mode signals have different keywords; viewing these keywords determines whether the signal is in the first or second mode. The first mode signal indicates that the associated RF signal acquisition and processing system is operating normally, and the current RF signal acquisition and processing system does not need to acquire and process the RF signal from the default working area of ​​the associated RF signal acquisition and processing system. In this case, the working area of ​​the current RF signal acquisition and processing system continues to be updated to the default working area.

[0065] As the distance increases, the quality of radio frequency (RF) signals decreases. When the associated RF signal acquisition and processing system is working properly, updating the current working area of ​​the RF signal acquisition and processing system to the default working area can improve the acquisition quality of RF signals in the corresponding working area of ​​the associated RF signal acquisition and processing system, thereby improving the subsequent processing quality.

[0066] The second-mode signal indicates that the associated radio frequency signal acquisition and processing system is not functioning properly, requiring the current radio frequency signal acquisition and processing system to acquire and process the radio frequency signals of the default working area corresponding to the associated system. This directional information represents the direction of the current one-way road from its starting point to its ending point; it is a fixed directional information pre-stored in each acquisition module. With the determination of the position number of each acquisition module, the order of position numbers for all acquisition modules on the current road is also determined and stored in each acquisition module. In this embodiment, the current one-way road is a one-way road from east to west, and the position number of the acquisition module corresponding to the starting point of the current one-way road is 1. Following the east-to-west directional order, the position number of each acquisition module is obtained by incrementing the position number of the previous acquisition module. The reference position number corresponding to the current acquisition module is also pre-stored in the module. By checking the storage unit in the current acquisition module, the directional information of the current road, the order of position numbers for all acquisition modules on the current road, and the reference position number corresponding to the current acquisition module can be obtained.

[0067] By comparing the reference location number and the problem location number in the model signal, and based on the location number sequence and direction information, the relative direction information of the problem location number relative to the reference location number can be determined. For example, if the problem location number is 2, the reference location number is 3, the location number sequence is 1, 2, 3, ..., and the direction information is from due east to due west, then the relative location direction information is due east. To enable the acquisition and processing of radio frequency (RF) signals in the working area corresponding to the fault location number, the working area of ​​the acquisition module needs to be updated based on the relative direction information. This allows the acquisition module to acquire and process RF signals in the working area corresponding to the fault location number, improving the fault tolerance of the RF signal acquisition and processing system.

[0068] The process of updating the working area of ​​the acquisition module based on relative direction information includes: increasing the relative direction information by 90 degrees in both the clockwise and counterclockwise directions to obtain the directional range represented by the relative direction information; and adjusting the receiving distance of the acquisition module within the directional range represented by the relative direction information to the first receiving distance to increase the working area of ​​the acquisition module.

[0069] The aforementioned first receiving distance is the distance from the current acquisition module to the point where the associated acquisition module intersects perpendicularly with the current road, specifically (a√21) / 3. Based on the relative direction information, a positive and negative 90-degree extension is applied to obtain a directional range. The receiving distance within this directional range is the first receiving distance, while the receiving distance outside this reverse range remains unchanged. Thus, with the current location of the radio frequency signal acquisition and processing device as the center, semicircles are drawn with the first receiving distance and the original receiving distance as radii respectively, to obtain a new working area.

[0070] The acquisition module has four working areas. The first working area is the default working area obtained entirely from the original receiving distance. The second working area consists of a portion consistent with the direction information obtained from the original receiving distance, and another portion obtained from the first receiving distance. The third working area consists of a portion consistent with the direction information obtained from the first receiving distance, and another portion obtained from the original receiving distance. The fourth working area is entirely obtained from the first receiving distance. Correspondingly, the acquisition module has four working modes. The appropriate working mode is selected based on the direction information, location number order, reference location number, and problem location number to update the working area of ​​the acquisition module.

[0071] In addition, when the mode conversion module does not receive a working signal, the acquisition module continues to acquire radio frequency signals in real time based on the current working area.

[0072] The output of the acquisition module is connected to the input of the down-conversion module, and sends the RF signal acquired by the acquisition module to the down-conversion module. The down-conversion module then down-converts the RF signal to obtain an analog intermediate frequency (IF) signal. Since the processing module has a limited frequency range, the down-conversion module down-converts the RF signal to ensure that the resulting IF signal meets the frequency range of the processing module, facilitating subsequent processing of the acquired signal. Specifically, a frequency converter can be used to down-convert the RF signal to obtain an IF signal that meets the required frequency range.

[0073] The output of the downconversion module is connected to the input of the splitting module to send the intermediate frequency (IF) signal to the splitting module. Considering that processing the acquired RF signals is intended to provide guidance to R&D personnel, the RF signals need to be processed according to the same region. That is, the RF signals in different regions need to be split to obtain several sub-IF signals corresponding to the same working region. The splitting of the IF signals to obtain sub-IF signals corresponding to the same working region includes: based on the pre-stored IF signal quality range, sequentially determining whether the instruction of each IF signal falls within the IF signal instruction range. If it does, the IF signal is marked as a fixed IF signal, where the IF signal quality range represents the quality range corresponding to the IF signal within the default range of the current acquisition module; if it does not fall within the range, the IF signal is marked as a problem IF signal.

[0074] The intermediate frequency (IF) signals include fixed IF signals and problematic IF signals. All fixed IF signals are sub-IF signals of the current working area, and all problematic IF signals are sub-IF signals of the working area corresponding to the associated acquisition module. Since the splitting module only splits the IF signals of multiple working areas into sub-IF signals of different working areas, it does not change the properties of the IF signals; that is, the sub-IF signals are still analog sub-IF signals.

[0075] The output of the splitting module is connected to the input of the processing module to send the sub-IF signal to the processing module. The processing module includes an intermediate frequency (IF) unit and an analysis unit. The IF unit is connected to the down-converter module to receive the sub-IF signal and sample it to obtain a digitized sub-IF signal. The analysis unit is connected to the IF unit to receive the digitized sub-IF signal and analyze it according to preset analysis logic to obtain analysis results. The analysis unit contains pre-written programs to analyze the sub-IF signal and obtain corresponding analysis results.

[0076] In addition, the radio frequency signal acquisition and processing system also includes an alarm module. The input of the alarm module is connected to the output of the mode conversion module to receive mode signals and determine whether the mode signal is a first mode signal. If it is a first mode signal, the alarm module remains in sleep mode; if it is a second mode signal, an alarm signal is generated based on the second mode signal. This facilitates the timely handling of malfunctioning radio frequency signal acquisition and processing systems by personnel, and enables better subsequent acquisition and processing of radio frequency signals within the corresponding working area of ​​the system, since the quality of radio frequency signals gradually deteriorates during transmission.

[0077] The radio frequency signal acquisition and processing system also includes a storage module and a display module. The input of the storage module is connected to the output of the processing module to receive the analysis results and store them in chronological order, facilitating subsequent tracing of relevant information by researchers.

[0078] The input terminal of the display module is connected to the output terminal of the downconverter module to receive the intermediate frequency signal and display it. The input terminal of the display module is also connected to the output terminal of the processing module to receive the analysis results and display them, so that researchers can understand the relevant signals in a timely and intuitive manner.

[0079] Figure 6 This is a block diagram of the radio frequency signal acquisition and processing method provided in the embodiments of this application. Figure 6 As shown, a radio frequency signal acquisition and processing method includes the following steps:

[0080] Step S100: Receive the working signal and generate a mode signal based on the working signal.

[0081] Step S200: Update the working area according to the mode signal to acquire radio frequency signals in real time according to the working area.

[0082] Step S300: Downconvert the radio frequency signal to an intermediate frequency signal.

[0083] Step S400: The intermediate frequency signal is split to obtain sub-intermediate frequency signals corresponding to the same working area.

[0084] Step S500: Analyze and process the sub-IF signal to obtain the analysis results.

[0085] This application provides a computer-readable storage medium storing a computer program that, when run on a computer, enables the computer to execute the relevant content in the aforementioned method embodiments.

[0086] It should be understood that although the steps in the flowcharts in the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order requirement for the execution of these steps, and they may be performed in other orders.

[0087] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A radio frequency signal acquisition and processing system, characterized in that, The system includes: a mode conversion module, a data acquisition module, a down-conversion module, a splitting module, and a processing module; wherein, The mode conversion module is used to receive working signals from associated acquisition modules that are associated with the acquisition module, generate mode signals based on the working signals, and send them to the acquisition module. The acquisition module is used to connect to the mode conversion module to receive the mode signal and update the working area of ​​the acquisition module according to the mode signal, so as to acquire radio frequency signals in real time according to the working area. The downconversion module is used to connect to the acquisition module to receive the radio frequency signal and downconvert the radio frequency signal into an intermediate frequency signal; The splitting module is used to connect to the downconverter module to receive the intermediate frequency signal and split the intermediate frequency signal to obtain sub-intermediate frequency signals corresponding to the same working area. The processing module is connected to the splitting module to receive the sub-IF signal and process and analyze the sub-IF signal to obtain analysis results. Among them, two adjacent radio frequency signal acquisition and processing devices are related radio frequency signal acquisition and processing devices, the radio frequency signal acquisition and processing systems in these two radio frequency signal acquisition and processing devices are related radio frequency signal acquisition and processing systems, and the acquisition modules in these two radio frequency signal acquisition and processing systems are related acquisition modules. The mode signal includes one of a first mode signal and a second mode signal. Each working signal includes keywords characterizing the attributes of the working signal. Generating the mode signal based on the working signal includes: Determine whether the keyword in the working signal is a keyword that represents normal operation. If so, generate a first mode signal that represents that the acquisition module still maintains the existing working area based on the working signal. Otherwise, based on the working signal, the characterization acquisition module needs to adjust the second mode signal of the working area; Each mode signal includes a location number, and updating the working area of ​​the acquisition module based on the mode signal includes: Determine whether the mode signal is a first mode signal. If it is a first mode signal, set the working area of ​​the acquisition module to the default working area according to the first mode signal to complete the update of the working area of ​​the acquisition module. If it is the second mode signal, obtain the direction information of the current road, the position number sequence of all acquisition modules in the current road, and the reference position number of the current acquisition module; Based on the direction information and the position number order, the relative direction information of the problem position number in the mode signal relative to the reference position number is determined, and the working area of ​​the acquisition module is updated according to the relative direction information.

2. The system according to claim 1, characterized in that, Updating the working area of ​​the acquisition module based on the relative direction information includes: The relative direction information is increased by 90 degrees in both the clockwise and counterclockwise directions to obtain the direction range represented by the relative direction information; The receiving distance of the acquisition module within the directional range represented by the relative directional information is adjusted to a first receiving distance to increase the working area of ​​the acquisition module.

3. The system according to claim 1, characterized in that, The intermediate frequency (IF) signal is split to obtain sub-IF signals corresponding to the same working region, including: Based on the pre-stored intermediate frequency signal quality range, it is sequentially determined whether the quality of each intermediate frequency signal falls within the intermediate frequency signal quality range. If it does, the intermediate frequency signal is marked as a fixed intermediate frequency signal. The intermediate frequency signal quality range represents the quality range of the intermediate frequency signal within the default range corresponding to the current acquisition module. If it does not fall into the category, the intermediate frequency signal is marked as a problem intermediate frequency signal.

4. The system according to claim 1, characterized in that, The processing module includes an intermediate frequency unit and an analysis unit; wherein... The intermediate frequency unit is connected to the down-conversion module to receive the sub-IF signal and sample the sub-IF signal to obtain a digital sub-IF signal; The analysis unit is connected to the intermediate frequency unit to receive the digital sub-IF signal and analyze the digital sub-IF signal according to a preset analysis logic to obtain the analysis result.

5. The system according to claim 1, characterized in that, The system also includes an alarm module, which is connected to the mode conversion module to receive the mode signal and determine whether the mode signal is a first mode signal. If it is a first mode signal, the alarm module remains in sleep mode. If it is a second mode signal, then an alarm signal is generated based on the second mode signal.

6. The system according to claim 1, characterized in that, The system also includes a storage module and a display module; wherein... The storage module is connected to the processing module to receive the analysis results and store them in chronological order. The display module is connected to the downconversion module to receive the intermediate frequency signal and display the intermediate frequency signal; The display module is also connected to the processing module to receive the analysis results and display them.

7. A method for acquiring and processing radio frequency signals, characterized in that, Using a radio frequency signal acquisition and processing system as described in any one of claims 1 to 6, the method includes: Receive the working signal and generate a mode signal based on the working signal; The working area is updated according to the mode signal in order to acquire radio frequency signals in real time based on the working area; The radio frequency signal is down-converted to an intermediate frequency signal; The intermediate frequency signal is split to obtain sub-intermediate frequency signals corresponding to the same working area; The sub-IF signal is analyzed and processed to obtain the analysis results.

8. A computer-readable medium having a computer program stored thereon that can run on a processor, characterized in that, When the computer program is executed by the processor, it implements the radio frequency signal acquisition and processing method as described in claim 7.

Images